CN111631007B - Corn harvester discharge apparatus - Google Patents

Abstract

The invention relates to the field of agricultural equipment, in particular to a corn harvester discharging device, which comprises a grass bin, a lifting bracket arranged at the bottom of the grass bin and used for lifting the grass bin, a turnover mechanism arranged at the bottom of the grass bin and used for turning over the grass bin, and a folding driving mechanism arranged at the bottom of the grass bin and used for folding the grass bin; the grass bin comprises a side plate and a bottom plate, the side plate is arranged perpendicular to the bottom plate, the bottom of the side plate is hinged with the bottom plate, the side plate comprises a first vertical plate, a second vertical plate, a third vertical plate and a fourth vertical plate, and the fourth vertical plate can be unfolded to be in the same plane state with the bottom plate; the outer side walls of the bottoms of the first vertical plate, the second vertical plate and the third vertical plate are provided with first folding mechanisms; the outer side wall of the fourth vertical plate is provided with a second folding mechanism, and at least two steel wire ropes are respectively connected between the folding driving mechanism and the first folding mechanism and between the folding driving mechanism and the second folding mechanism. The invention provides a discharging device which can reduce the height of a discharging grass bin of a corn harvester and adapt to different loading heights.

Description

Corn harvester unloading device

Technical Field

The invention relates to the field of agricultural equipment, and in particular to a corn harvester unloading device.

Background Art

my country is a big agricultural country. Corn, wheat and rice are the main sources of food in my country. The annual output of corn is more than 200 million tons. In order to meet the demand for high-yield crops, most crops are currently harvested using mechanical equipment. Corn harvesters are inevitably used in the corn harvesting process.

The existing corn harvester includes a cab, a granary and a hay barn. The main function of the hay barn is to store the corn stalks after harvesting, and then transfer the stalks in the hay barn to the truck. At present, the hay barn of the corn harvester is set above the harvester, and its height is relatively high, which affects the passability of the harvester when it travels to the height-restricted section. At the same time, due to the different heights of different trucks, the existing hay barn cannot adapt to the transportation of straws by trucks of different heights. Therefore, there is an urgent need for a unloading hay barn that does not affect the height limit of the corn harvester and can adapt to the loading requirements of trucks of different heights.

Summary of the invention

The object of the present invention is to provide a corn harvester unloading device to solve the above-mentioned problem and to provide a unloading device which can reduce the height of the unloading hay bin of the corn harvester and can adapt to different loading heights.

To achieve the above object, the present invention provides the following solutions:

A corn harvester unloading device comprises a hay bin, a lifting bracket arranged at the bottom of the hay bin to lift the hay bin, a turning mechanism arranged at the bottom of the hay bin to turn the hay bin over, and a folding driving mechanism arranged at the bottom of the hay bin to fold the hay bin;

The hay barn comprises a side panel and a bottom panel, wherein the side panel is vertically arranged with respect to the bottom panel, the bottom of the side panel is hinged with respect to the bottom panel, and the side panel comprises a first vertical panel, a second vertical panel, a third vertical panel, and a fourth vertical panel, wherein the fourth vertical panel can be unfolded to be in the same plane as the bottom panel;

The first vertical plate, the second vertical plate, and the third vertical plate are provided with a first folding mechanism on their bottom outer side walls; the fourth vertical plate is provided with a second folding mechanism on its outer side wall, and at least two steel cables are respectively connected between the folding drive mechanism and the first folding mechanism and the second folding mechanism.

Preferably, the lifting bracket includes a second vertical bracket fixed to the four corners of the base plate, a first vertical bracket slidably sleeved in the second vertical bracket, a transverse bracket fixed to the upper parts of the four second vertical brackets, and a lifting hydraulic cylinder whose cylinder body is hinged to the lower part of the first vertical bracket, and the piston of the lifting hydraulic cylinder is hinged to the lower surface of the transverse bracket.

Preferably, the flipping mechanism includes an L-shaped bracket hinged to one end of the bottom of the base plate, the other end of the L-shaped bracket is fixedly connected to one end of the top of the lifting bracket, and a flipping hydraulic cylinder is hinged on one side of the L-shaped bracket close to the lifting bracket, and the cylinder body of the flipping hydraulic cylinder is hinged to the base plate.

Preferably, the folding drive mechanism comprises a winding wheel group axially connected to the bottom of the bottom plate and a driving component arranged at the bottom of the bottom plate, and the movement direction of the driving component is perpendicular to the arrangement direction of the winding wheel group; the steel wire rope is wound on the winding wheel group, and the driving component is fixedly connected to the steel wire rope;

The winding wheel assembly includes a first winding wheel, a second winding wheel, a third winding wheel, a fourth winding wheel, a fifth winding wheel, and a sixth winding wheel. The first winding wheel, the second winding wheel, and the fourth winding wheel are arranged close to the bottom plate, the third winding wheel and the fifth winding wheel are arranged far away from the bottom plate, the second winding wheel and the third winding wheel are arranged coaxially, the fourth winding wheel and the fifth winding wheel are arranged coaxially, and the sixth winding wheel is arranged far away from the driving assembly.

Preferably, the driving assembly comprises two rows of guide wheels axially connected in parallel to the bottom surface of the base plate, a guide plate arranged between the two rows of guide wheels, a rope-pulling hydraulic cylinder whose output shaft and the guide plate are fixed away from the winding wheel group end, a first crank arm arranged in line with one row of guide wheels and a second crank arm arranged in line with the other row of guide wheels; the second crank arm is close to the rope-pulling hydraulic cylinder, and the first crank arm is in line with the rope-pulling hydraulic cylinder;

The inflection points of the first crank arm and the second crank arm are axially connected to the base plate, and guide rollers are provided at one end of the first crank arm and the second crank arm close to the guide plate; the cylinder body of the rope pulling hydraulic cylinder is fixedly connected to the base plate, and the other ends of the first crank arm and the second crank arm are fixedly connected to the wire rope.

Preferably, the first folding mechanism includes a limit plate fixedly arranged on the outer side walls of the first upright plate, the second upright plate and the third upright plate, a first roller mounting plate fixedly arranged on the outer side of the bottom plate, a first reset block fixedly arranged on the outer side walls of the first upright plate, the second upright plate and the third upright plate, a reset spring arranged below the first reset block, a spring mounting block arranged below the reset spring and a reset rod sliding through the spring mounting block and a first roller axially connected to both ends of the first roller mounting plate; at least two first roller mounting plates are arranged side by side, and a reset guide block is arranged at the interval between the two first roller mounting plates, the reset guide block is fixed on the outer side walls of the first upright plate, the second upright plate and the third upright plate, the limit plate is arranged corresponding to the upper end of the first roller mounting plate, the reset rod is a T-shaped structure, the reset spring is sleeved on the reset rod, and the wire rope passes around the first roller and is fixedly connected to the outer side walls of the first upright plate, the second upright plate and the third upright plate.

Preferably, the second folding mechanism includes a second roller mounting plate fixedly arranged on the bottom edge of the base plate, second rollers axially connected to both ends of the second roller mounting plate, and a hook fixedly arranged on the lower edge of the outer side wall of the fourth vertical plate, and the steel wire rope passes around the second roller and is fixedly connected to the hook.

Preferably, a limit assembly for limiting the unfolded position of the fourth vertical plate is also provided at the lower outer side of the fourth vertical plate, and the limit assembly includes two symmetrically arranged V-shaped arms and a first hinged rod hinged to the V-shaped arms; a reinforcing rod is fixedly connected between the two V-shaped arms, the lower parts of the two V-shaped arms are hinged to one end of the first hinged rod, the lower ends of the two V-shaped arms are hinged to the lifting bracket, and the other end of the hinged rod is hinged to the bottom surface of the base plate.

Preferably, a reset mechanism for resetting the upright plate is also provided at the lower outer side of the fourth upright plate, the reset mechanism comprising a support rod hinged to the top of the lifting bracket at one end, a second hinged rod hinged to the support rod and close to the lifting bracket, a hinge shaft arranged at the other end of the second hinged rod, and a reset arm hinged to the second hinged rod through the hinge shaft; a second reset spring is sleeved on the outer side of the hinge shaft, and both ends of the second reset spring are overlapped with the second hinged rod and the reset arm respectively.

The present invention has the following technical effects:

The driving mechanism is connected to the first folding mechanism and the second folding mechanism through a steel wire rope, so as to drive the first vertical plate, the second vertical plate, the third vertical plate, and the fourth vertical plate to unfold and fold, thereby reducing the height of the hay bin and improving the passing performance of the corn harvester;

The hay bin is turned over by the turning mechanism to dump the straw in the hay bin, and the hay bin is raised and lowered by the lifting bracket to adapt to the loading of trucks at different heights.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of a partially enlarged structure of A in FIG1 ;

FIG3 is a schematic diagram of the bottom structure of the present invention;

FIG4 is a schematic diagram of a partially enlarged structure of B in FIG3 ;

FIG5 is a schematic diagram of a partially enlarged structure of C in FIG3 ;

FIG6 is a schematic diagram of a partially enlarged structure of D in FIG3 ;

FIG7 is a schematic diagram of the bottom structure without the lifting bracket;

FIG8 is a schematic diagram of a partially enlarged structure of E in FIG7 ;

FIG9 is a schematic diagram of a partially enlarged structure of F in FIG7 ;

FIG. 10 is a schematic diagram of the wire rope connection structure of the folding drive mechanism of the present invention.

Among them, 1 is the first vertical plate, 2 is the second vertical plate, 3 is the third vertical plate, 4 is the fourth vertical plate, 5 is the lifting bracket, 501 is the first vertical bracket, 502 is the second vertical bracket, 203 is the horizontal bracket, 504 is the lifting hydraulic cylinder, 6 is the flip hydraulic cylinder, 7 is the limit assembly, 701 is the reinforcement rod, 702 is the V-shaped arm, 703 is the first hinge rod, 8 is the bottom plate, 9 is the first folding mechanism, 901 is the limit plate, 902 is the first roller mounting plate, 903 is the first reset block, 904 is the reset spring, 905 is the spring mounting block, 906 is the reset rod, 907 is the reset guide block, 908 is the first roller, 10 is the second folding mechanism, 1001 is the second roller mounting plate, 1002 is the second roller, 1003 is the hook, 11 is the reset mechanism, 1101 is a support rod, 1102 is a second hinge rod, 1103 is a hinge shaft, 1104 is a second return spring, 1105 is a fitting roller, 1106 is a return arm, 12 is a folding drive mechanism, 1201 is a first winding wheel, 1202 is a second winding wheel, 1203 is a third winding wheel, 1204 is a fourth winding wheel, 1205 is a fifth winding wheel, 1206 is a guide wheel, 1207 is a guide plate, 1208 is a rope-pulling hydraulic cylinder, 1209 is a first crank arm, 1210 is a second crank arm, 1211 is a guide roller, 1212 is a sixth winding wheel, 13 is a bracket reinforcement assembly, 1301 is a reinforcement rod, 1302 is a fixing plate, 14 is a first steel wire rope, 15 is a second steel wire rope, 16 is a third steel wire rope, 17 is a fourth steel wire rope, and 18 is an L-shaped bracket.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

1-10, the present invention provides a corn harvester unloading device, including a hay bin, a lifting bracket 5 arranged at the bottom of the hay bin to lift the hay bin, a turning mechanism arranged at the bottom of the hay bin to turn the hay bin, and a folding drive mechanism 12 arranged at the bottom of the hay bin to fold the hay bin;

The hay barn includes a side panel and a bottom panel 8, the side panel and the bottom panel 8 are vertically arranged, the bottom of the side panel is hinged to the bottom panel 8, the side panel includes a first vertical panel 1, a second vertical panel 2, a third vertical panel 3, and a fourth vertical panel 4, and the fourth vertical panel 4 can be unfolded to be in the same plane as the bottom panel 8;

The first vertical plate 1, the second vertical plate 2, and the third vertical plate 3 are provided with a first folding mechanism 9 on the bottom outer wall; the fourth vertical plate 4 is provided with a second folding mechanism 10 on the outer wall, and at least two steel wires are connected between the folding driving mechanism 12 and the first folding mechanism 9 and the second folding mechanism 10. The driving mechanism 12 is connected to the first folding mechanism 9 and the second folding mechanism 10 through the steel wires, driving the first vertical plate 1, the second vertical plate 2, the third vertical plate 3, and the fourth vertical plate 4 to unfold and fold, thereby reducing the height of the hay bin and improving the passing performance of the corn harvester; the hay bin is turned over by the turning mechanism, the straw in the hay bin is dumped, and the hay bin is raised and lowered by the lifting bracket 5 to adapt to the loading of trucks of different heights.

Further optimized solution, the lifting bracket 5 includes a second vertical bracket 502 fixed at the four corners of the bottom plate 8, a first vertical bracket 501 slidably sleeved in the second vertical bracket 502, a transverse bracket 503 fixed to the upper part of the four second vertical brackets 502, and a lifting hydraulic cylinder 504 whose cylinder body is hinged to the lower part of the first vertical bracket 501, and the piston of the lifting hydraulic cylinder 504 is hinged to the lower surface of the transverse bracket 503. The piston of the lifting hydraulic cylinder 504 extends and moves, driving the transverse bracket 503 to move upward, thereby driving the second vertical bracket 502 to move upward relative to the first vertical bracket 501 to realize the lifting function of the hay barn. When the hay barn needs to be lowered, the lifting hydraulic cylinder 504 contracts, driving the transverse bracket 503 to move downward, thereby driving the second vertical bracket 502 to move downward relative to the first vertical bracket 501 to realize the lowering function of the hay barn.

Further optimized solution, the flip mechanism includes an L-shaped bracket 18 hinged to one end of the bottom of the bottom plate 8, the other end of the L-shaped bracket 18 is fixedly connected to one end of the transverse bracket 503 on the top of the lifting bracket 5, and the L-shaped bracket 18 is hinged to a flip hydraulic cylinder 6 on one side of the transverse bracket 503 on the lifting bracket 5, and the cylinder body of the flip hydraulic cylinder 6 is hinged to the bottom plate 8. Through the extension and retraction of the flip hydraulic cylinder 6, the bottom plate 8 is pushed to rotate along the L-shaped bracket 18, so as to realize the flipping function of the hay barn.

A further optimized solution is that the folding drive mechanism 12 includes a winding wheel group axially connected to the bottom of the base plate 8 and a driving component arranged at the bottom of the base plate 8, and the movement direction of the driving component is perpendicular to the arrangement direction of the winding wheel group; the steel wire rope is wound on the winding wheel group, and the driving component is fixedly connected to the steel wire rope; the steel wire ropes are a first steel wire rope 14, a second steel wire rope 15, a third steel wire rope 16, and a fourth steel wire rope 17.

The winding wheel assembly includes a first winding wheel 1201, a second winding wheel 1202, a third winding wheel 1203, a fourth winding wheel 1204, a fifth winding wheel 1205, and a sixth winding wheel 1212. The first winding wheel 1201, the second winding wheel 1202, and the fourth winding wheel 1204 are arranged close to the bottom plate 8, the third winding wheel 1203 and the fifth winding wheel 1205 are arranged away from the bottom plate 8, the second winding wheel 1202 and the third winding wheel 1203 are coaxially arranged, the fourth winding wheel 1204 and the fifth winding wheel 1205 are coaxially arranged, and the sixth winding wheel 1212 is arranged away from the driving assembly. One end of the first steel wire rope 14 and the second steel wire rope 15 are fixedly connected to the driving assembly, the first steel wire rope 14 passes through the fourth winding wheel 1204 and the second winding wheel 1202, and the other end passes through the first folding mechanism 9 on the third vertical plate 3 and is fixedly connected to the third vertical plate 3, the second steel wire rope 15 passes through the fifth winding wheel 1205 and the sixth winding wheel 1212, and the other end passes through the first folding mechanism 9 on the first vertical plate 1 and is fixedly connected to the first vertical plate 1; one end of the third steel wire rope 16 and the fourth steel wire rope 17 are fixedly connected to the driving assembly, the third steel wire rope 16 passes through the first winding wheel 1201, and the other end passes through the second folding mechanism 10 on the fourth vertical plate 4 and is fixedly connected to the fourth vertical plate 4, the fourth steel wire rope 17 passes through the third winding wheel 1203, and the other end passes through the first folding mechanism 9 on the second vertical plate 2 and is fixedly connected to the second vertical plate 2. The driving assembly pulls the first steel wire rope 14 , the second steel wire rope 15 , the third steel wire rope 16 , and the fourth steel wire rope 17 , thereby driving the first vertical plate 1 , the second vertical plate 2 , and the third vertical plate 3 to unfold to a vertical state relative to the bottom plate 8 .

Further optimized solution, the driving assembly includes two rows of guide wheels 1206 connected in parallel to the bottom surface of the bottom plate 8, a guide plate 1207 arranged between the two rows of guide wheels 1206, a rope-pulling hydraulic cylinder 1208 fixed at the end of the output shaft and the guide plate 1207 away from the winding wheel group, a first crank arm 1209 arranged in line with one row of guide wheels 1206, and a second crank arm 1210 arranged in line with the other row of guide wheels 1206; the second crank arm 1210 is close to the rope-pulling hydraulic cylinder 1208, and the first crank arm 1209 is far away from the rope-pulling hydraulic cylinder 1208;

The inflection points of the first crank arm 1209 and the second crank arm 1210 are axially connected to the base plate 8, and guide rollers 1211 are provided at one end of the first crank arm 1209 and the second crank arm 1210 close to the guide plate 1207; the cylinder body of the rope-pulling hydraulic cylinder 1208 is fixedly connected to the base plate 8, a wire rope fixer is provided at the other end of the first crank arm 1209, and the other end of the first crank arm 1209 is fixedly connected to the third wire rope 16 and the fourth wire rope 17 through the wire rope fixer, and a wire rope fixer is provided at the other end of the second crank arm 1210, and the other end of the second crank arm 1210 is fixedly connected to the first wire rope 14 and the second wire rope 15 through the wire rope fixer. By placing the second crank arm 1210 close to the rope-pulling hydraulic cylinder 1208 and the first crank arm 1209 away from the rope-pulling hydraulic cylinder 1208, when the rope-pulling hydraulic cylinder 1208 moves outward, the second crank arm 1210 can drive the first steel wire rope 14 and the second steel wire rope 15 to be tightened first, so that the first vertical plate 1 and the third vertical plate 3 are unfolded first; when the rope-pulling hydraulic cylinder 1208 moves in contraction, the first crank arm 1209 drives the third steel wire rope 16 and the fourth steel wire rope 17 to be contracted first, so that the second vertical plate 2 and the fourth vertical plate 4 are folded first.

A further optimized solution is that the first folding mechanism 9 includes a limit plate 901 fixedly arranged on the outer side walls of the first vertical plate 1, the second vertical plate 2, and the third vertical plate 3, a first roller mounting plate 902 fixedly arranged on the outer side of the bottom plate 8, a first reset block 903 fixedly arranged on the outer side walls of the first vertical plate 1, the second vertical plate 2, and the third vertical plate 3, a reset spring 904 arranged below the first reset block 903, a spring mounting block 905 arranged below the reset spring 904, a reset rod 906 sliding through the spring mounting block 905, and a first roller 908 axially connected to both ends of the first roller mounting plate 902; the first roller mounting plate 902 is provided with at least two first rollers side by side, and the two first rollers are provided with a first roller. A reset guide block 907 is provided at the interval between the wheel mounting plates 902, and the reset guide block 907 is fixed on the outer walls of the first vertical plate 1, the second vertical plate 2, and the third vertical plate 3. The limit plate 901 is arranged corresponding to the upper end of the first roller mounting plate 902, the reset rod 906 is a T-shaped structure, and the reset spring 904 is sleeved on the reset rod 906. The first steel wire rope 14 bypasses the first roller 908 on the third vertical plate 3 and is fixedly connected to the outer wall of the third vertical plate 3. The second steel wire rope 15 bypasses the first roller 908 on the first vertical plate 1 and is fixedly connected to the outer wall of the first vertical plate 1. The fourth steel wire rope 17 bypasses the first roller 908 on the second vertical plate 2 and is fixedly connected to the outer wall of the second vertical plate 2. When the first vertical plate 1, the second vertical plate 2, and the third vertical plate 3 are unfolded, they are respectively stretched by the pulling force of the second steel wire rope 15, the fourth steel wire rope 17, and the first steel wire rope 14. When they need to be folded, the elastic force of the reset spring 904 causes the reset rod 908 to move upward, and the reset rod 908 moves upward against the first reset block 903. The first reset block 903 drives the first vertical plate 1, the second vertical plate 2, and the third vertical plate 3 to fold inward. When the angle between the three and the bottom plate 8 is less than 90 degrees, they are folded by gravity.

A further optimized solution is that the second folding mechanism 10 includes a second roller mounting plate 1001 fixedly arranged on the bottom edge of the base plate 8, a second roller 1002 axially connected to both ends of the second roller mounting plate 1001, and a hook 1003 fixedly arranged on the lower edge of the outer wall of the fourth vertical plate 4, and the third steel wire rope 16 passes around the second roller 1002 and is fixedly connected to the hook 1003.

Further optimization scheme, the lower outer part of the fourth vertical board 4 is also provided with a limit assembly 7 for limiting the unfolding position of the vertical board 4, and the limit assembly 7 includes two symmetrically arranged V-shaped arms 702 and a first hinge rod 703 hinged to the V-shaped arms 702; a reinforcing rod 701 is fixedly connected between the two V-shaped arms 702, the lower parts of the two V-shaped arms 702 are hinged to one end of the first hinge rod 703, the lower ends of the two V-shaped arms 702 are hinged to the lifting bracket 5, and the other end of the hinge rod 703 is hinged to the bottom surface of the bottom plate 8. When the straw is dumped from the hay barn, the limit assembly 7 is unfolded along with the fourth vertical board 4 to limit the opening angle of the fourth vertical board 4.

Further optimization scheme, the lower outer part of the fourth vertical plate 4 is also provided with a reset mechanism 11 for resetting the vertical plate 4, the reset mechanism 11 comprises a support rod 1101 hinged at one end to the top of the lifting bracket 5, a second hinge rod 1102 hinged on the support rod 1101 and close to the lifting bracket 5, a hinge shaft 1103 arranged at the other end of the second hinge rod 1102, and a reset arm 1106 hinged to the second hinge rod 1102 through the hinge shaft 1103; a second reset spring 1104 is sleeved on the outer side of the hinge shaft 1103, and the two ends of the second reset spring 1104 are respectively overlapped with the second hinge rod 1102 and the reset arm 1106. When the hay barn is reset, the reset arm 1106 is driven to reset by the second reset spring 1104, and the reset arm 1106 pushes the fourth vertical plate 4 to achieve reset.

In a further optimized solution, a support reinforcement assembly 13 is provided in the middle of the lifting support 5, and the support reinforcement assembly 13 includes at least two reinforcement rods 1301, preferably four reinforcement rods 1301, one end of the reinforcement rod 1301 is fixedly connected to the second vertical support 502, and the other end of the reinforcement rod 1301 is fixed with a fixing plate 1302. The reinforcement assembly realizes the reinforcement function of the lifting support 5.

The working process of this embodiment is as follows:

The hay bin lifting function is controlled by the operating room of the corn harvester to lift the lifting hydraulic cylinder 504, which pushes the horizontal bracket 503 to move upward, thereby driving the second vertical bracket 502 to move upward along the first vertical bracket 501, and then driving the bottom plate 8 and the first vertical plate 1, the second vertical plate 2, the third vertical plate 3, and the fourth vertical plate 4 to move upward, thereby realizing the function of raising the hay bin. The operating room controls the lifting cylinder 504 to fall, thereby realizing the function of lowering the hay bin;

The hay bin dumping function is achieved by controlling the flip hydraulic cylinder 6 to expand through the operating room of the corn harvester. The flip hydraulic cylinder 6 pushes the bottom plate 8 to rotate along the L-shaped bracket, and the fourth vertical plate 4 continues to expand, thereby realizing the dumping function of the hay bin. After the dumping is completed, the flip hydraulic cylinder 6 is controlled to retract, and the bottom plate 8 rotates in the opposite direction along the L-shaped bracket. The fourth vertical plate 4 is reset by driving the reset arm 1106 through the second reset spring 1104, and the reset arm 1106 pushes the fourth vertical plate 4 to achieve reset.

The hay bin folding function controls the rope-pulling hydraulic cylinder 1208 to be pushed outward through the operating room of the corn harvester, and the rope-pulling hydraulic cylinder 1208 drives the guide plate 1207 to be pushed outward along the guide wheel 1206, and the guide plate 1206 pushes the first crank arm 1209 and the second crank arm 1210 to rotate, and the second crank arm 1210 rotates before the first crank arm 1209, so that the second crank arm 1210 pulls the first steel wire rope 14 and the second steel wire rope 15, and the first steel wire rope 14 pulls the third vertical plate 3, and the second steel wire rope 15 pulls the first vertical plate 1 to unfold, and the first crank arm 1209 pulls the third steel wire rope 16 and the fourth steel wire rope 17, and the third steel wire rope 16 and the fourth vertical plate 4, and the fourth steel wire rope 17 pull the second vertical plate 2 to unfold later than the first vertical plate 1 and the third vertical plate 3; When folding is required, the pull rope hydraulic cylinder 1208 is controlled to retract inward, and the first crank arm 1209 rotates in the opposite direction before the second crank arm 1210. The reset spring 904 on the first vertical plate 1 and the third vertical plate 3 pushes the reset rod 906 to move upward, and the reset rod 906 pushes the first reset block 903. The first reset block 903 pushes the first vertical plate 1 and the third vertical plate 3 to fold. When the angle between the first vertical plate 1, the third vertical plate 3 and the bottom plate 8 is less than 90°, the first vertical plate 1 and the third vertical plate 3 are folded by gravity, and the second crank arm 1210 rotates in the opposite direction. The second vertical plate 2 is folded by the reset spring, and the fourth vertical plate 4 is reset by the second reset spring 1104. The reset arm 1106 pushes the fourth vertical plate 4 to fold.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 should not be understood as a limitation on the present invention.

The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims (3)

1. A corn harvester discharge apparatus, its characterized in that: comprises a grass bin, a lifting bracket (5) arranged at the bottom of the grass bin for lifting the grass bin, a turnover mechanism arranged at the bottom of the grass bin for turning over the grass bin, and a folding driving mechanism (12) arranged at the bottom of the grass bin for folding the grass bin;

the grass bin comprises a side plate and a bottom plate (8), wherein the side plate is perpendicular to the bottom plate (8), the bottom of the side plate is hinged to the bottom plate (8), the side plate comprises a first vertical plate (1), a second vertical plate (2), a third vertical plate (3) and a fourth vertical plate (4), and the fourth vertical plate (4) can be unfolded to be in the same plane state as the bottom plate (8);

The outer side walls of the bottoms of the first vertical plate (1), the second vertical plate (2) and the third vertical plate (3) are provided with first folding mechanisms (9); the outer side wall of the fourth vertical plate (4) is provided with a second folding mechanism (10), and at least two steel wire ropes are respectively connected between the folding driving mechanism (12) and the first folding mechanism (9) and between the folding driving mechanism (10);

The lifting support (5) comprises second vertical supports (502) fixed at four corners of the bottom plate (8), first vertical supports (501) sleeved in the second vertical supports (502) in a sliding manner, transverse supports (503) fixed at the upper parts of the four second vertical supports (502) and lifting hydraulic cylinders (504) with cylinder bodies hinged to the lower parts of the first vertical supports (501), and pistons of the lifting hydraulic cylinders (504) are hinged to the lower surfaces of the transverse supports (503);

the turnover mechanism comprises an L-shaped bracket (18) hinged with one end of the bottom plate (8), the other end of the L-shaped bracket (18) is fixedly connected with one end of the top of the lifting bracket (5), a turnover hydraulic cylinder (6) is hinged to one side, close to the lifting bracket (5), of the L-shaped bracket (18), and a cylinder body of the turnover hydraulic cylinder (6) is hinged with the bottom plate (8);

The folding driving mechanism (12) comprises a winding wheel set and a driving component, wherein the winding wheel set is connected to the bottom of the bottom plate (8) in a shaft way, the driving component is arranged at the bottom of the bottom plate (8), and the moving direction of the driving component is perpendicular to the arrangement direction of the winding wheel set; the steel wire rope is wound on the winding wheel set, and the driving assembly is fixedly connected with the steel wire rope;

The winding wheel assembly comprises a first winding wheel (1201), a second winding wheel (1202), a third winding wheel (1203), a fourth winding wheel (1204), a fifth winding wheel (1205) and a sixth winding wheel (1212), wherein the first winding wheel (1201), the second winding wheel (1202) and the fourth winding wheel (1204) are close to the bottom plate (8), the third winding wheel (1203) and the fifth winding wheel (1205) are far away from the bottom plate (8), the second winding wheel (1202) and the third winding wheel (1203) are coaxially arranged, the fourth winding wheel (1204) and the fifth winding wheel (1205) are coaxially arranged, and the sixth winding wheel (1212) is far away from the driving assembly;

The driving assembly comprises two rows of guide wheels (1206) which are connected to the bottom surface of the bottom plate (8) in a parallel and shaft-connected mode, a guide plate (1207) arranged between the two rows of guide wheels (1206), a stay rope hydraulic cylinder (1208) with an output shaft fixed to the end, away from the winding wheel group, of the guide plate (1207), a first crank arm (1209) which is arranged in a collinear mode with one row of guide wheels (1206), and a second crank arm (1210) which is arranged in a collinear mode with the other row of guide wheels (1206); the second crank arm (1210) is close to the stay cord hydraulic cylinder (1208), and the first crank arm (1209) is far away from the stay cord hydraulic cylinder (1208);

The inflection points of the first crank arm (1209) and the second crank arm (1210) are in shaft connection with the bottom plate (8), and guide rollers (1211) are arranged at one ends of the first crank arm (1209) and the second crank arm (1210) close to the guide plate (1207); the cylinder body of the stay cord hydraulic cylinder (1208) is fixedly connected with the bottom plate (8), and the other ends of the first crank arm (1209) and the second crank arm (1210) are fixedly connected with the steel wire rope;

The first folding mechanism (9) comprises a limiting plate (901) fixedly arranged on the outer side walls of the first vertical plate (1), the second vertical plate (2) and the third vertical plate (3), a first roller mounting plate (902) fixedly arranged on the outer side of the bottom plate (8), a first reset block (903) fixedly arranged on the outer side walls of the first vertical plate (1), the second vertical plate (2) and the third vertical plate (3), a reset spring (904) arranged below the first reset block (903), a spring mounting block (905) arranged below the reset spring (904), a reset rod (906) penetrating through the spring mounting block (905) in a sliding mode, and first rollers (908) connected to two ends of the first roller mounting plate (902) in a shaft mode; the device comprises a first roller mounting plate (902), at least two reset guide blocks (907) are arranged at intervals of the first roller mounting plates (902), the reset guide blocks (907) are fixed on the outer side walls of the first vertical plate (1), the second vertical plate (2) and the third vertical plate (3), limiting plates (901) are correspondingly arranged at the upper ends of the first roller mounting plates (902), reset rods (906) are of T-shaped structures, reset springs (904) are sleeved on the reset rods (906), and steel wire ropes bypass the first rollers (908) and are fixedly connected with the outer side walls of the first vertical plate (1), the second vertical plate (2) and the third vertical plate (3);

The second folding mechanism (10) comprises a second roller mounting plate (1001) fixedly arranged at the bottom edge of the bottom plate (8), second rollers (1002) connected with two ends of the second roller mounting plate (1001) in a shaft joint mode, hooks (1003) fixedly arranged at the lower edge of the outer side wall of the fourth vertical plate (4), and the steel wire rope bypasses the second rollers (1002) to be fixedly connected with the hooks (1003).

2. A corn harvester discharge apparatus as in claim 1 wherein: the lower part of the outer side of the fourth vertical plate (4) is also provided with a limiting component (7) for limiting the unfolding position of the vertical plate (4), and the limiting component (7) comprises two symmetrically arranged V-shaped arms (702) and a first hinging rod (703) hinged with the V-shaped arms (702); the middle of the two V-shaped arms (702) is fixedly connected with a reinforcing rod (701), the lower parts of the two V-shaped arms (702) are hinged with one end of a first hinging rod (703), the lower ends of the two V-shaped arms (702) are hinged with the lifting support (5), and the other ends of the first hinging rods (703) are hinged with the bottom surface of the bottom plate (8).

3. A corn harvester discharge apparatus as in claim 1 wherein: the lower part of the outer side of the fourth vertical plate (4) is also provided with a reset mechanism (11) for resetting the vertical plate (4), wherein the reset mechanism (11) comprises a supporting rod (1101) with one end hinged with the top of the lifting support (5), a second hinging rod (1102) hinged on the supporting rod (1101) and close to the lifting support (5), a hinging shaft (1103) arranged at the other end of the second hinging rod (1102) and a reset arm (1106) hinged with the second hinging rod (1102) through the hinging shaft (1103); a second return spring (1104) is sleeved on the outer side of the hinge shaft (1103), and two ends of the second return spring (1104) are respectively overlapped with the second hinge rod (1102) and the return arm (1106).