Grain unloading device for harvester

Abstract

The utility model relates to the technical field of grain unloading devices, and discloses a grain unloading device for a harvester, which comprises a harvester grain storage box, a lifting grain barrel is fixedly mounted at a grain outlet of the harvester grain storage box, a conveying grain barrel is arranged at the top end of the lifting grain barrel, a pushing auger is mounted below an inner cavity of the harvester grain storage box, and a conveying screw is mounted below the inner cavity of the harvester grain storage box. One end of the pushing auger extends to the bottom end of an inner cavity of the lifting grain barrel, grain conveying augers are arranged in the lifting grain barrel and the conveying grain barrel, and a grain unloading position adjusting mechanism is arranged outside the conveying grain barrel. Through cooperation of the protective cover, the low-speed motor, the reciprocating lead screw, the push plate, the push rod and the connecting block, the grain unloading barrel is conveniently driven to move on the outer wall of the grain conveying barrel, and the grain unloading barrel is guided through cooperation of the guide block and the guide groove, so that the length between the grain unloading barrel and the grain conveying barrel is adjusted, the grain unloading range is enlarged, and the grain unloading efficiency is improved. And the grains can be unloaded farther, subsequent grain unloading operation is facilitated, and the grain unloading efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain unloading devices, and more specifically to a grain unloading device for a harvester. Background Art

[0002] A harvester is an agricultural machine used for harvesting crops in an integrated manner. It can complete the harvesting and threshing operations in one go, collect the grains into a storage bin, and then transport the grains to a transport vehicle through a grain unloading device.

[0003] For example, Chinese patent application number "CN201921659668.1" discloses a high-position reversible grain unloading device for a longitudinal axis flow combine harvester, comprising a grain box, a pushing auger provided at the bottom of one side of the grain box, one end of the pushing auger fixedly connected to a grain lifting barrel, the grain lifting barrel comprising a first grain lifting barrel and a second grain lifting barrel, the top of the first grain lifting barrel fixedly connected to a translation grain barrel, one end of the translation grain barrel fixedly connected to a grain unloading port, the top of the outer wall of the second grain lifting barrel fixedly connected to a lower steering wheel, and the top of the lower steering wheel movably connected to an upper steering wheel. The utility model utilizes the arrangement of the upper steering wheel and the lower steering wheel, and through the change in the relative position between the upper steering wheel and the lower steering wheel, causes the first grain lifting barrel to rotate, driving the translation grain barrel and the grain unloading port to rotate, thereby increasing the range of the relative position between the grain loading vehicle and the longitudinal axis combine harvester, so that it can cope with various geographical environment problems and improve work efficiency.

[0004] After the longitudinal flow combine harvester is improved with a high-position reversible grain unloading device, the grain barrel and the grain unloading port can be driven to rotate to adjust the grain unloading position. However, the grain unloading device and the traditional grain unloading device for harvesters do not have the function of adjusting the length of the grain unloading device. For example, when the distance between the grain transport vehicle and the harvester is relatively far, so that the grain transport vehicle is not within the grain unloading range of the grain unloading device, it is necessary to drive the grain transport vehicle or the harvester to move and adjust the position before the grain can be unloaded onto the grain transport vehicle. This process is relatively troublesome, which affects the grain unloading efficiency and needs to be improved. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a grain unloading device for a harvester to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a grain unloading device for a harvester, comprising a grain storage box for the harvester, a grain lifting drum fixedly installed at the grain outlet of the grain storage box for the harvester, a grain conveying drum provided on the top of the grain lifting drum, a pushing auger installed below the inner cavity of the grain storage box for the harvester, one end of the pushing auger extending to the bottom end of the inner cavity of the grain lifting drum, a grain conveying auger provided inside the grain lifting drum and the grain conveying drum, a grain unloading position adjusting mechanism provided outside the grain conveying drum, the grain unloading position adjusting mechanism including the grain unloading drum, ... The left end of the interior of the cylinder is movably sleeved on the right end of the outer wall of the grain conveying cylinder, the right ends of the grain conveying cylinder and the grain unloading cylinder are slightly inclined downward, and a grain unloading port is provided at the right end of the bottom of the grain unloading cylinder, the left end of the top of the grain conveying cylinder is fixedly connected to a connecting seat, the top of the connecting seat is fixedly connected to a protective cover, the left end of the interior of the protective cover is slidably connected to a push plate, and two push rods are symmetrically fixedly connected to the left side of the push plate, and the top of the grain unloading cylinder is fixedly connected to a connecting block, and the right ends of the two push rods pass through the right end of the protective cover and are fixedly connected to the left side of the connecting block;

[0007] The top of the grain lifting barrel is provided with a grain unloading angle adjustment mechanism, and the grain unloading angle adjustment mechanism includes a protective cylinder. The inner part of the protective cylinder is rotatably sleeved on the top of the outer wall of the grain lifting barrel, and the top of the protective cylinder is fixedly connected to the left end of the bottom of the grain conveying barrel. The outer wall of the protective cylinder is fixedly sleeved with a driven gear, and a driving gear is provided on the left side of the driven gear, and the driving gear is meshed with the driven gear.

[0008] Furthermore, the outside of the grain lifting barrel is fixedly sleeved with a fixing frame, the left side of the fixing frame is fixedly connected to the right side of the harvester's grain storage box, and a servo motor and a worm gear reducer are fixedly installed on the right side of the top of the harvester's grain storage box. The output end of the servo motor is fixedly connected to the input end of the worm gear reducer through a coupling, and the output end of the worm gear reducer is fixedly connected to the middle of the bottom of the driving gear.

[0009] Furthermore, a plurality of limiting sliders are fixedly connected to the interior of the protective cylinder, an annular slide groove is provided at the top end of the outer wall of the grain lifting cylinder, and the outer walls of the plurality of limiting sliders are slidably connected to the interior of the annular slide groove.

[0010] Furthermore, a grain inlet is provided at the left end of the bottom of the grain conveying drum, and the grain inlet is located above the top end of the grain lifting drum.

[0011] Furthermore, a low-speed motor is fixedly installed on the left end of the protective cover, the output end of the low-speed motor extends to the inner cavity of the protective cover and is fixedly connected to a reciprocating screw rod, the right end of the reciprocating screw rod is rotatably connected to the right end of the inner wall of the protective cover, and the middle part of the push plate is threadedly sleeved on the left end of the outer wall of the reciprocating screw rod.

[0012] Furthermore, a plurality of guide blocks are fixedly connected to the left end of the inner wall of the grain unloading barrel, a plurality of guide grooves are opened at the right end of the outer wall of the grain conveying barrel, and the outer walls of the guide blocks are slidably connected to the inside of the guide grooves.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. This utility model utilizes a protective cover, a low-speed motor, a reciprocating screw, a push plate, a push rod, and a connecting block to facilitate driving the grain unloading drum to move along the outer wall of the grain conveying drum. The guide block and guide groove cooperate to guide the grain unloading drum, thereby adjusting the length between the grain unloading drum and the grain conveying drum, increasing the grain unloading range, allowing grain to be unloaded at a greater distance, facilitating unloading onto a grain transport vehicle, and improving grain unloading efficiency.

[0015] 2. This utility model utilizes a servo motor, worm gear reducer, driving gear, driven gear, limit slider, and annular chute to facilitate driving the protective cylinder to rotate at the top of the grain lifting cylinder. The protective cylinder then drives the grain conveying cylinder and grain unloading cylinder to rotate, thereby facilitating adjustment of the grain unloading device's position during unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a cross-sectional schematic diagram of the grain conveying drum, grain unloading position adjustment mechanism and protective drum structure of the present invention.

[0018] Figure 3 This is a schematic cross-sectional view of the protective cover structure of the present invention.

[0019] Figure 4 It is a schematic sectional view of the side structure of the grain conveying drum of the present invention.

[0020] Figure 5 This is a schematic cross-sectional view of the top view of the grain lifting drum of the present invention.

[0021] The accompanying drawings are marked as follows: 1. Harvester grain storage box; 2. Pushing auger; 3. Lifting grain barrel; 31. Fixed frame; 4. Grain conveying barrel; 41. Grain inlet; 5. Grain unloading position adjustment mechanism; 51. Grain unloading barrel; 52. Grain unloading port; 53. Guide block; 54. Guide groove; 55. Connecting seat; 56. Protective cover; 561. Low-speed motor; 562. Reciprocating screw; 563. Push plate; 564. Push rod; 565. Connecting block; 6. Grain conveying auger; 7. Grain unloading angle adjustment mechanism; 71. Servo motor; 72. Worm gear reducer; 73. Driving gear; 74. Driven gear; 75. Protective cylinder; 76. Limiting slider; 77. Annular slide. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The grain unloading device for a harvester involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example 1:

[0024] like Figure 1-5 The hopper 2 is provided with a lifting device 31 for lifting the grain. The lifting device 31 is provided with a lifting device 32 for lifting the grain. The lifting device 32 is provided with a lifting device 33 for lifting the grain. The lifting device 32 is provided with a lifting device 33 for lifting the grain. The lifting device 32 is provided with a lifting device 33 for lifting the grain. The top of the socket 55 is fixedly connected to a protective cover 56, and the left end inside the protective cover 56 is slidably connected to a push plate 563. The left end of the protective cover 56 is fixedly installed with a low-speed motor 561, and the output end of the low-speed motor 561 extends to the inner cavity of the protective cover 56 and is fixedly connected to a reciprocating screw rod 562. The right end of the reciprocating screw rod 562 is rotatably connected to the right end of the inner wall of the protective cover 56, and the middle part of the push plate 563 is threadedly sleeved on the left end of the outer wall of the reciprocating screw rod 562. Two push rods 564 are symmetrically fixedly connected to the left side of the push plate 563. The top of the grain unloading barrel 51 is fixedly connected to a connecting block 565. The right ends of the two push rods 564 pass through the right end of the protective cover 56 and are fixedly connected to the left side of the connecting block 565. The left end of the inner wall of the grain unloading barrel 51 is fixedly connected to multiple guide blocks 53. The right end of the outer wall of the grain conveying barrel 4 is provided with multiple guide grooves 54, and the outer wall of the guide block 53 is slidably connected to the inside of the guide groove 54.

[0025] In this embodiment, by cooperating with the pushing auger 2, the lifting grain drum 3, the conveying grain drum 4 and the grain conveying auger 6, the grain inside the harvester grain storage box 1 is conveniently transported to the inside of the grain unloading drum 51, and discharged through the grain unloading port 52 for grain unloading operation, and by cooperating with the low-speed motor 561 and the reciprocating screw 562, it is convenient to drive the push plate 563 to move inside the protective cover 56, and the push plate 563 simultaneously drives the push rod 564 and the connecting block 565 to move, and the connecting block 565 drives the grain unloading drum 51 to move to the right on the outer wall of the grain conveying drum 4. The cooperation of the guide block 53 and the guide groove 54 is used to facilitate the guidance of the grain unloading drum 51, so that the length between the grain unloading drum 51 and the grain conveying drum 4 can be adjusted, the grain unloading range can be increased, and the grain can be unloaded at a farther distance.

[0026] Example 2:

[0027] like Figure 1-5 As shown, the top of the lifting grain barrel 3 is provided with a grain unloading angle adjustment mechanism 7, which includes a protective cylinder 75. The interior of the protective cylinder 75 is rotatably sleeved on the top of the outer wall of the lifting grain barrel 3. The top of the protective cylinder 75 is fixedly connected to the left end of the bottom of the conveying grain barrel 4. The interior of the protective cylinder 75 is fixedly connected with a plurality of limiting sliders 76. The top of the outer wall of the lifting grain barrel 3 is provided with an annular groove 77. The outer walls of the plurality of limiting sliders 76 are all slidably connected to the inside of the annular groove 77. The outer wall of the protective cylinder 75 is fixedly sleeved with a driven gear 74 A driving gear 73 is provided on the left side of the driven gear 74, and the driving gear 73 meshes with the driven gear 74. The outside of the lifting grain cylinder 3 is fixedly sleeved with a fixing frame 31, and the left side of the fixing frame 31 is fixedly connected to the right side of the harvester grain storage box 1. A servo motor 71 and a worm gear reducer 72 are fixedly installed on the right side of the top of the harvester grain storage box 1. The output end of the servo motor 71 is fixedly connected to the input end of the worm gear reducer 72 through a coupling, and the output end of the worm gear reducer 72 is fixedly connected to the middle of the bottom of the driving gear 73.

[0028] In this embodiment, the cooperation of the servo motor 71 and the worm gear reducer 72 is convenient for driving the driving gear 73 to rotate, and the cooperation of the driving gear 73 and the driven gear 74 is convenient for driving the protective cylinder 75 to rotate at the top end of the outer wall of the lifting grain cylinder 3. The protective cylinder 75 also drives multiple limiting sliders 76 to slide inside the annular slide groove 77. The cooperation of the limiting slider 76 and the annular slide groove 77 is convenient for maintaining the stability of the protective cylinder 75 during rotation. At the same time, the top end of the protective cylinder 75 drives the grain conveying cylinder 4 and the grain unloading cylinder 51 to rotate, thereby facilitating the adjustment of the orientation of the grain unloading cylinder 51 during unloading.

[0029] In summary, if Figure 1-5As shown, this kind of grain unloading device for harvesters, when in use, drives the driving gear 73 to rotate through the cooperation of the servo motor 71 and the worm gear reducer 72, and the driving gear 73 drives the protective cylinder 75 to rotate at the top end of the outer wall of the lifting grain cylinder 3 through the driven gear 74, and the protective cylinder 75 drives multiple limit sliders 76 to slide inside the annular slide groove 77. At the same time, the top end of the protective cylinder 75 drives the grain conveying cylinder 4 and the grain unloading cylinder 51 to rotate, and adjusts the direction of the grain unloading cylinder 51 when unloading grain. Then, through the setting of the pushing auger 2, it is convenient to transport the grain inside the harvester grain storage box 1 to the inside of the lifting grain cylinder 3, and transport the grain through the grain conveying auger 6 inside the lifting grain cylinder 3 and the conveying grain cylinder 4, so that the grain enters the interior of the grain unloading cylinder 51 and is discharged through the grain unloading port 52. When it is farther away, the reciprocating screw 562 is driven to rotate by the output end of the low-speed motor 561, and the reciprocating screw 562 drives the push rod 564 to move through the push plate 563. One end of the push rod 564 drives the grain unloading barrel 51 to move to the right on the outer wall of the grain conveying barrel 4 through the connecting block 565. At the same time, the grain unloading barrel 51 drives multiple guide blocks 53 to slide horizontally inside the guide groove 54, so as to adjust the length between the grain unloading barrel 51 and the grain conveying barrel 4, and make the grain unloading port 52 at the bottom of the grain unloading barrel 51 located above the grain transport vehicle. When the grain conveying auger 6 inside the grain conveying barrel 4 transports the grain to the inside of the grain unloading barrel 51, since the right end of the grain unloading barrel 51 is slightly tilted downward, the grain slides inside the grain unloading barrel 51 to the grain unloading port 52 and is discharged through the grain unloading port 52, so that the grain can be unloaded onto the grain transport vehicle.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A grain unloading device for a harvester, comprising a grain storage box (1) for the harvester, characterized in that: A grain lifting drum (3) is fixedly installed at the grain outlet of the harvester grain storage box (1), and a grain conveying drum (4) is provided at the top of the grain lifting drum (3). A pushing auger (2) is installed below the inner cavity of the harvester grain storage box (1), and one end of the pushing auger (2) extends to the bottom end of the inner cavity of the grain lifting drum (3). A grain conveying auger (6) is provided inside the grain lifting drum (3) and the grain conveying drum (4). A grain unloading position adjustment mechanism (5) is provided outside the grain conveying drum (4). The grain unloading position adjustment mechanism (5) includes a grain unloading drum (51). The left end of the inner part of the grain unloading drum (51) is movably sleeved on the right end of the outer wall of the grain conveying drum (4). (4) and the right end of the grain unloading barrel (51) are slightly tilted downward, and a grain unloading port (52) is provided at the right end of the bottom of the grain unloading barrel (51), and the left end of the top of the grain conveying barrel (4) is fixedly connected to a connecting seat (55), and the top of the connecting seat (55) is fixedly connected to a protective cover (56), and the left end inside the protective cover (56) is slidably connected to a push plate (563), and the left side of the push plate (563) is symmetrically fixedly connected to two push rods (564), and the top of the grain unloading barrel (51) is fixedly connected to a connecting block (565), and the right ends of the two push rods (564) pass through the right end of the protective cover (56) and are fixedly connected to the left side of the connecting block (565); The top of the grain lifting barrel (3) is provided with a grain unloading angle adjustment mechanism (7), and the grain unloading angle adjustment mechanism (7) includes a protective cylinder (75). The interior of the protective cylinder (75) is rotatably sleeved on the top of the outer wall of the grain lifting barrel (3). The top of the protective cylinder (75) is fixedly connected to the left end of the bottom of the grain conveying barrel (4). A driven gear (74) is fixedly sleeved on the outer wall of the protective cylinder (75). A driving gear (73) is provided on the left side of the driven gear (74), and the driving gear (73) is meshed with the driven gear (74).

2. A grain unloading device for a harvester according to claim 1, characterized in that: The exterior of the grain lifting barrel (3) is fixedly sleeved with a fixing frame (31), the left side of the fixing frame (31) is fixedly connected to the right side of the harvester grain storage box (1), a servo motor (71) and a worm gear reducer (72) are fixedly installed on the right side of the top of the harvester grain storage box (1), the output end of the servo motor (71) is fixedly connected to the input end of the worm gear reducer (72) through a coupling, and the output end of the worm gear reducer (72) is fixedly connected to the middle of the bottom of the driving gear (73).

3. The grain unloading device for a harvester according to claim 1, characterized in that: The interior of the protective cylinder (75) is fixedly connected with a plurality of limiting slide blocks (76), the top end of the outer wall of the grain lifting cylinder (3) is provided with an annular sliding groove (77), and the outer walls of the plurality of limiting slide blocks (76) are all slidably connected to the interior of the annular sliding groove (77).

4. The grain unloading device for a harvester according to claim 1, characterized in that: A grain inlet (41) is provided at the left end of the bottom of the grain conveying barrel (4), and the grain inlet (41) is located above the top end of the grain lifting barrel (3).

5. The grain unloading device for a harvester according to claim 1, characterized in that: A low-speed motor (561) is fixedly mounted on the left end of the protective cover (56), the output end of the low-speed motor (561) extends to the inner cavity of the protective cover (56) and is fixedly connected to a reciprocating screw rod (562), the right end of the reciprocating screw rod (562) is rotatably connected to the right end of the inner wall of the protective cover (56), and the middle part of the push plate (563) is threadedly sleeved on the left end of the outer wall of the reciprocating screw rod (562).

6. The grain unloading device for a harvester according to claim 1, characterized in that: The left end of the inner wall of the grain unloading barrel (51) is fixedly connected to a plurality of guide blocks (53), the right end of the outer wall of the grain conveying barrel (4) is provided with a plurality of guide grooves (54), and the outer wall of the guide block (53) is slidably connected to the inside of the guide groove (54).

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