Cleaning device for corn harvester

Abstract

The utility model discloses a cleaning device for a corn harvester, which relates to the technical field of corn harvesting and comprises a barrel, a mechanism frame is fixedly sleeved on the outer side of the barrel, a material injection pipe is fixedly connected to the middle of the right side of the barrel, and a discharge pipe is fixedly connected to the lower side of the barrel close to the left side of the barrel. A cleaning mechanism is rotatably connected to the inner side of the barrel body, the cleaning mechanism comprises a rotary drum, a first screen drum and a second screen drum, and a plurality of linearly distributed supporting frames are fixedly connected to the inner sides of the rotary drum and the first screen drum. According to the cleaning device for the corn harvester, the motor drives the rotary drum, the first screen drum and the second screen drum to rotate, materials enter the inner side of the second screen drum from the material injection pipe, so that the materials are driven by the spiral blade to move leftwards, and corns are screened out through screening of the first screen drum and the second screen drum at the same time; sundries are conveyed and screened at the same time, and the problem of sundries accumulation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of corn harvesting, in particular to a cleaning device for a corn harvester. Background Art

[0002] Corn harvester is an agricultural machinery that mechanically completes multiple operations of corn picking, stacking, stalking, and returning corn to the field at one time when corn is ripe. Corn harvester is used to pick corn ears while it is growing, and then the ears are transported to the field, peeled with a peeler, and threshed after drying. It is a machine that mechanically completes the production links of corn stalk cutting, ear picking, peeling, threshing, straw processing and rotary tillage of the land after harvesting. However, the threshed corn will be mixed with a large amount of smaller debris such as bracts, fluff, and stalk fragments, as well as a small amount of larger debris such as cobs, which directly affect people's use of food, so the threshed corn also needs to be cleaned and removed.

[0003] Chinese patent document CN209030637U discloses a cleaning device for a corn harvester, comprising a barrel, one end of which is fixed with a motor, the output shaft of the motor passes through the center position of one side wall of the barrel and is welded to a rotating shaft, a spiral blade is fixedly provided on the rotating shaft, a feed port is provided above the end of the barrel close to the motor, a discharge port is provided at the other end of the barrel away from the motor, the discharge port is welded to a vibrating screen, the vibrating screen is bolted to a feed plate, and the feed plate is hinged to a receiving box through a hinge; the motor drives the rotating shaft and the spiral blade to rotate, and impurities are removed by centrifugal force and under the action of a fine filtering iron net, so that the corn is well cleaned; under the action of the vibrating screen, the blockage of the discharge port is prevented, and the coarse filtering iron net performs secondary filtering on the corn kernels, so that the impurity removal effect of the corn kernels is better; and the structure is simple and reasonable, the impurity removal effect is good, the practicability is strong, manpower is saved, and efficiency is improved.

[0004] The existing technology has the following problems:

[0005] The cleaning device makes the two filtering iron nets independent of each other, especially the coarse filtering iron net, which is in a static state, causing large pieces of debris to remain in the storage box, resulting in the debris clogging the coarse filtering iron net, making it difficult for the corn to fall. Utility Model Content

[0006] The utility model provides a cleaning device for a corn harvester to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A cleaning device for a corn harvester comprises a cylinder, a mechanism frame is fixedly sleeved on the outer side of the cylinder, a material injection pipe is fixedly connected to the middle part of the right side of the cylinder, a material discharge pipe is fixedly connected to the lower side of the cylinder near the left side, and a cleaning mechanism is rotatably connected to the inner side of the cylinder.

[0009] Preferably, the cleaning mechanism includes a rotating drum, a first sieve drum and a second sieve drum, the inner sides of the rotating drum and the first sieve drum are fixedly connected with a plurality of linearly distributed support frames, and the first sieve drum is located on the inner side of the rotating drum; the outer sides of the first sieve drum and the second sieve drum are fixedly connected with a plurality of evenly distributed clamping plates, and the second sieve drum is located on the inner side of the first sieve drum, and the outer sides of the clamping plates are movably sleeved in the clamping grooves opened on the inner side of the support frames.

[0010] Preferably, the shape of the card plate is octagonal.

[0011] Preferably, spiral blades are fixedly connected to the inner sides of the rotating drum, the first screen drum and the second screen drum, a gear ring is fixedly connected to the right side of the rotating drum near the edge, a motor is fixedly connected to the right side of the cylinder near the bottom, a gear is fixedly connected to the output end of the motor, and the lower side of the gear is meshed and connected with the inner side of the gear ring.

[0012] Preferably, a sealing plate is fixedly connected to the left side of the cylinder by screws, a rotating plate is rotatably connected to the inner side of the sealing plate, a rubber pad is fixedly connected to the right side of the rotating plate, and the right side of the rubber pad is tightly attached to the left sides of the rotating cylinder, the first screen cylinder and the second screen cylinder.

[0013] Preferably, the left sides of the rotating drum, the first screen drum and the second screen drum are all fixedly connected with a plurality of annularly distributed plug posts, and the outer sides of the plug posts are movably sleeved in slots provided on the right side of the rotating plate.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] The utility model provides a cleaning device for a corn harvester, which adopts a feeding pipe, a rotating drum, a first screen drum, a second screen drum, a support frame, a clamping plate, a spiral blade, a gear ring, a motor and a gear. The motor drives the rotating drum, the first screen drum and the second screen drum to rotate, and the material enters the inner side of the second screen drum from the feeding pipe, so that the material is driven by the spiral blade to move to the left, and at the same time, the corn is screened out after being screened by the first screen drum and the second screen drum, and the debris conveying and the debris screening are carried out at the same time, thereby avoiding the problem of debris accumulation.

[0016] The utility model provides a cleaning device for a corn harvester, which adopts the cooperation of a cylinder, a rotating cylinder, a first screen cylinder, a second screen cylinder, a support frame, a clamping plate, a sealing plate, a rotating plate, a plug column and a rubber pad. The second screen cylinder and the first screen cylinder are quickly installed through the mutual sleeve connection of the clamping plate and the inner slot of the support frame, and then the left side of the cylinder is closed with the sealing plate, so that the cleaning mechanism is installed as a whole, which is convenient to install and disassemble, easy to maintain, and convenient to disassemble and dredge when debris blocks the inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle A part;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the rotating drum part of the utility model;

[0021] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the rotating drum portion of the utility model.

[0022] In the figure: 1. cylinder; 2. mechanism frame; 3. injection pipe; 4. discharge pipe; 5. cleaning mechanism; 51. rotating drum; 52. first screen drum; 53. second screen drum; 54. support frame; 55. clamping plate; 56. spiral blade; 57. gear ring; 58. motor; 59. gear; 510. sealing plate; 511. rotating plate; 512. plug column; 513. rubber pad. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 As shown, a cleaning device for a corn harvester includes a cylinder 1, a mechanism frame 2 is fixedly sleeved on the outer side of the cylinder 1, a filling pipe 3 is fixedly connected to the middle of the right side of the cylinder 1, a discharge pipe 4 is fixedly connected to the lower side of the cylinder 1 near the left side, and a cleaning mechanism 5 is rotatably connected to the inner side of the cylinder 1.

[0025] It should be noted that the injection pipe 3 is used to feed unscreened materials, and the discharge pipe 4 discharges the screened smaller debris.

[0026] like Figure 3 , Figure 4As shown, the cleaning mechanism 5 includes a rotating drum 51, a first sieve drum 52 and a second sieve drum 53. The inner sides of the rotating drum 51 and the first sieve drum 52 are fixedly connected with a plurality of linearly distributed support frames 54, and the first sieve drum 52 is located on the inner side of the rotating drum 51. The outer sides of the first sieve drum 52 and the second sieve drum 53 are fixedly connected with a plurality of evenly distributed clamping plates 55, and the second sieve drum 53 is located on the inner side of the first sieve drum 52. The outer side of the clamping plate 55 is movably sleeved in a clamping groove opened on the inner side of the support frame 54.

[0027] It should be noted that the second sieve drum 53 screens out larger debris, and the first sieve drum 52 screens out smaller debris from the corn and enters the inner side of the rotating drum 51. The cooperation between the clamping plate 55 and the inner groove of the support frame 54 prevents the rotating drum 51, the first sieve drum 52 and the second sieve drum 53 from rotating relative to each other.

[0028] like Figure 3 As shown, the shape of the clamping plate 55 is octagonal.

[0029] It should be noted that the shape of the clamping plate 55 facilitates the clamping plate 55 to slide into the inner side of the clamping groove from the side when the first sieve drum 52 and the second sieve drum 53 are installed.

[0030] like Figure 4 , Figure 5 As shown, spiral blades 56 are fixedly connected to the inner sides of the rotating drum 51, the first sieve drum 52 and the second sieve drum 53, a gear ring 57 is fixedly connected to the right side of the rotating drum 51 near the edge, a motor 58 is fixedly connected to the right side of the cylinder body 1 near the bottom, a gear 59 is fixedly connected to the output end of the motor 58, and the lower side of the gear 59 is meshed and connected with the inner side of the gear ring 57.

[0031] It should be noted that the motor 58 drives the gear 59 to rotate, the gear 59 drives the gear ring 57 to rotate, and the rotating drum 51 drives the first screen drum 52 and the second screen drum 53 to rotate, so that the spiral blade 56 drives the materials inside the rotating drum 51, the first screen drum 52 and the second screen drum 53 to move leftward respectively.

[0032] like Figure 2 , Figure 3 As shown, a sealing plate 510 is fixedly connected to the left side of the cylinder 1 by screws, a rotating plate 511 is rotatably connected to the inner side of the sealing plate 510, a rubber pad 513 is fixedly connected to the right side of the rotating plate 511, and the right side of the rubber pad 513 is closely attached to the left sides of the rotating cylinder 51, the first sieve cylinder 52 and the second sieve cylinder 53.

[0033] It should be noted that the sealing plate 510 is used to block the first sieve drum 52 and the second sieve drum 53 to prevent them from sliding out from the inner side of the rotating drum 51. A round tube is connected to the left middle shell of the rotating plate 511 to prevent large debris inside the second sieve drum 53 from being remixed with the jade surface sieved out from the inner side of the first sieve drum 52.

[0034] like Figure 2-Figure 4 As shown, the left sides of the rotating drum 51 , the first sieve drum 52 and the second sieve drum 53 are all fixedly connected with a plurality of annularly distributed plug posts 512 , and the outer sides of the plug posts 512 are movably sleeved in slots opened on the right side of the rotating plate 511 .

[0035] It should be noted that the pin 512 is inserted into the slot on the rotating plate 511, so that when the rotating drum 51 rotates, the rotating plate 511 can be driven to rotate synchronously. A bearing assembly is provided between the rotating plate 511 and the sealing plate 510 to reduce the friction between the rotating plate 511 and the sealing plate 510.

[0036] The working principle of the utility model is as follows: first, the injection pipe 3 is used to put in the unscreened materials, the discharge pipe 4 discharges the screened smaller debris, the second screen drum 53 screens out the larger debris, the first screen drum 52 screens out the smaller debris from the corn and enters the inner side of the rotating drum 51, the card plate 55 cooperates with the inner card groove of the support frame 54, so that the rotating drum 51, the first screen drum 52 and the second screen drum 53 cannot rotate relative to each other, the motor 58 drives the gear 59 to rotate, the gear 59 drives the gear ring 57 to rotate, the rotating drum 51 drives the first screen drum 52 and the second screen drum 53 to rotate, so that the spiral blade 56 drives the materials inside the rotating drum 51, the first screen drum 52 and the second screen drum 53 to move to the left respectively, the rotating drum 51, the first screen drum 52 and the second screen drum 53 are driven to rotate by the motor 58, and the materials enter the inner side of the second screen drum 53 from the injection pipe 3, so that the materials are driven by the spiral blade 56 to move to the left, and at the same time, they are screened by the first screen drum 52 and the second screen drum 53. The corn is screened out, and the debris is transported and screened at the same time, which avoids the problem of debris accumulation. Finally, the sealing plate 510 is used to block the first screen cylinder 52 and the second screen cylinder 53 to prevent them from sliding out from the inner side of the rotating drum 51. A round tube is connected to the left middle shell of the rotating plate 511 to prevent the large debris inside the second screen cylinder 53 from being remixed with the corn surface screened out from the inner side of the first screen cylinder 52. The plug 512 is inserted into the slot on the rotating plate 511, so that the rotating drum 51 can drive the rotating plate 511 when it rotates. 1 rotates synchronously, a bearing assembly is provided between the rotating plate 511 and the sealing plate 510 to reduce the friction between the rotating plate 511 and the sealing plate 510, and the second screen drum 53 and the first screen drum 52 are quickly installed through the mutual sleeve of the clamping plate 55 and the inner clamping groove of the supporting frame 54, and then the left side of the cylinder body 1 is closed with the sealing plate 510, so that the cleaning mechanism 5 is installed as a whole, which is convenient to install and disassemble, easy to maintain, and convenient to disassemble and dredge when the interior is blocked by debris.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A corn harvester cleaning device, comprising a barrel (1), characterized in that: The outer side of the cylinder (1) is fixedly sleeved with a mechanism frame (2), the middle part of the right side of the cylinder (1) is fixedly connected with a material injection pipe (3), the lower side of the cylinder (1) near the left side is fixedly connected with a material discharge pipe (4), and the inner side of the cylinder (1) is rotatably connected with a cleaning mechanism (5).

2. A cleaning device for a corn harvester according to claim 1, characterized in that: The cleaning mechanism (5) comprises a rotating drum (51), a first sieve drum (52) and a second sieve drum (53); the inner sides of the rotating drum (51) and the first sieve drum (52) are fixedly connected to a plurality of linearly distributed support frames (54); the first sieve drum (52) is located on the inner side of the rotating drum (51); the outer sides of the first sieve drum (52) and the second sieve drum (53) are fixedly connected to a plurality of uniformly distributed clamping plates (55); the second sieve drum (53) is located on the inner side of the first sieve drum (52); and the outer sides of the clamping plates (55) are movably sleeved in clamping grooves provided on the inner side of the support frames (54).

3. A cleaning device for a corn harvester according to claim 2, characterized in that: The clamping plate (55) is in an octagonal shape.

4. A cleaning device for a corn harvester according to claim 2, characterized in that: The inner sides of the rotating drum (51), the first screen drum (52) and the second screen drum (53) are all fixedly connected with spiral blades (56); the right side of the rotating drum (51) is fixedly connected with a gear ring (57) near the edge; the right side of the cylinder body (1) is fixedly connected with a motor (58) near the bottom; the output end of the motor (58) is fixedly connected with a gear (59); the lower side of the gear (59) is meshedly connected with the inner side of the gear ring (57).

5. The cleaning device for corn harvester according to claim 2, characterized in that: The left side of the cylinder (1) is fixedly connected to a sealing plate (510) by means of screws, the inner side of the sealing plate (510) is rotatably connected to a rotating plate (511), the right side of the rotating plate (511) is fixedly connected to a rubber pad (513), and the right side of the rubber pad (513) is in close contact with the left sides of the rotating cylinder (51), the first sieve cylinder (52) and the second sieve cylinder (53).

6. A cleaning device for a corn harvester according to claim 5, characterized in that: A plurality of annularly distributed plug posts (512) are fixedly connected to the left sides of the rotating drum (51), the first sieve drum (52) and the second sieve drum (53); the outer sides of the plug posts (512) are movably sleeved in slots provided on the right side of the rotating plate (511).

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