CN219780963U - Corn peeling and screening mechanism - Google Patents

Abstract

The utility model discloses a corn peeling and screening mechanism, which comprises a screening device, wherein the screening device is arranged below a peeling assembly and comprises an outer frame, the top of the outer frame is of an opening structure, a screen plate is arranged at the bottom of the outer frame, swing arms are arranged on the side edges of the outer frame, the swing arms are fixedly connected with the screen plate and drive the screen plate to move, roller mechanisms are arranged in the inner cavity of the outer frame, scraping plates are arranged on the surfaces of the roller mechanisms in a staggered manner, and in the rotation process of the roller mechanisms, the scraping plates continuously push corn kernels falling on the screen plate. The screening mechanism that this device provided, the sieve can reciprocate, produces "and rocks" the action, simultaneously, sets up the cylinder mechanism in the sieve top and continuously rotates, sets up the scraper blade of staggered arrangement at the track surface, scrapes the kernel of corn that drops on the sieve, makes the kernel of corn get into in the mesh of sieve. The screen plate moves back and forth and the scraping plate continuously scrapes, so that the screening is thoroughly ensured, and the screen plate cannot be blocked.

Description

Corn peeling and screening mechanism

Technical Field

The utility model belongs to the field of agricultural machinery, and particularly relates to a corn peeling and screening mechanism.

Background

A corn harvester is a combine harvester for picking corn, and generally comprises a header, a conveying mechanism, a peeling mechanism, a screening mechanism and a receiving bin.

Traditional screening mechanism is a screen cloth of U type structure, and corn particles drop on the screen cloth, and when the mesh of screen cloth was stopped up, the completion screening operation that can not be fine was difficult to perceive, and the jam condition often is after having reaped one end time, and screening ability of screening mechanism descends, and screening efficiency is low, and corn particles can pile up in screening mechanism when serious, can't accomplish the screening.

Disclosure of Invention

In order to make up for the defects of the prior art, the utility model provides a technical scheme of a corn peeling and screening mechanism which thoroughly screens and does not block meshes of a screen plate.

A maize screening mechanism of skinning, including sieving mechanism, set up in the below of skinning subassembly, sieving mechanism includes the frame, the top of frame is open structure, and the bottom sets up the sieve, and the side is provided with the swing arm, the swing arm with sieve fixed connection, the drive the sieve removes, be provided with roller mechanism in the inner chamber of frame, roller mechanism's surface staggered arrangement is provided with the scraper blade, roller mechanism rotates the in-process, the scraper blade is last to the kernel of corn that falls on the sieve promotes the processing.

Further, the roller mechanism comprises a track and rollers, the rollers are arranged in two groups, the track and the rollers are combined to form a transmission structure, and one group of rollers penetrate out of the side edge of the outer frame and are connected with the driving device.

Further, a fluted disc is arranged on the roller, a rack is fixedly arranged on the inner wall of the crawler belt, and the fluted disc is connected with the rack in a meshed mode.

Further, at least one group of supporting rollers are arranged in the roller mechanism, the supporting rollers are limited between the two groups of rolling shafts, and the supporting rollers are in butt fit with the crawler belt.

Further, an eccentric bearing is further arranged on the roller, and the swing arm is fixed on the outer wall of the eccentric bearing.

Further, the front end of the swing arm is connected with the sieve plate to drive the sieve plate to swing.

Further, the side of sieve is provided with the mount pad, be provided with the articulated column on the mount pad, the front end of swing arm is provided with the articulated elements, with the articulated column forms articulated cooperation.

Further, a sliding groove is formed in the inner wall of the outer frame, rollers are arranged on the side edges of the screen plates, and the rollers are limited in the sliding groove.

Further, the driving device is a gear set and is in transmission connection with an external power output mechanism through a chain.

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

the screening mechanism that this device provided, the sieve can reciprocate, produces "and rocks" the action, simultaneously, sets up the cylinder mechanism in the sieve top and continuously rotates, sets up the scraper blade of staggered arrangement at the track surface, scrapes the kernel of corn that drops on the sieve, makes the kernel of corn get into in the mesh of sieve. The screen plate moves back and forth and the scraping plate continuously scrapes, so that the screening is thoroughly ensured, and the screen plate cannot be blocked.

Drawings

FIG. 1 is a schematic diagram of a screening apparatus;

FIG. 2 is a second schematic diagram of a screening apparatus;

FIG. 3 is a schematic diagram III of a screening apparatus;

FIG. 4 is a schematic cross-sectional view of a screening apparatus;

fig. 5 is a schematic diagram of the peeling and screening mechanism assembly of the corn combine.

In the figure: 1, a screening device; an outer frame 11; 111 chute; 12 sieve plates; 121 mounting base; 122 a hinge post; 123 roller; 13 a roller mechanism; a 131 scraper; 132 tracks; 133 roller; 134 fluted disc; 135 racks; 136 support rollers; 137 eccentric bearings; 14 swinging arms; 141 hinges; 2, peeling assembly; 3 driving means.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-5, a corn husking and screening mechanism comprises a screening device 1, wherein the screening device 1 is arranged below a husking assembly 2, the screening device 1 comprises an outer frame 11, the top of the outer frame 11 is of an opening structure, a screen plate 12 is arranged at the bottom of the outer frame, and a plurality of groups of meshes are arranged on the screen plate 12. The side is provided with swing arm 14, swing arm 14 and sieve 12 fixed connection, drive sieve 12 removal, is provided with cylinder mechanism 13 in the inner chamber of frame 11, and the surface staggered arrangement of cylinder mechanism 13 is provided with scraper blade 131, and cylinder mechanism 13 rotates the in-process, and scraper blade 131 is continuously promoting the processing to the kernel of corn that falls on sieve 12. The device also comprises a driving device 3, wherein the driving device 3 is arranged on the outer side of the outer frame 11, and a driving shaft in the residual roller mechanism 13 of the driving device 3 is in transmission connection. Specifically, the roller mechanism 13 includes a crawler 132 and rollers 133, the rollers are provided in two groups, the crawler 132 and the rollers 133 are combined to form a transmission structure, and the scraping plate 131 is provided on the surface of the crawler 132. One group of rollers 133 is penetrated out from the side of the outer frame 11 and serves as a driving shaft, one end of the rollers is connected with the driving device 3, and the other end of the rollers is connected with the swing arm 14. The driving device 3 is a gear set and is in transmission connection with an external power output mechanism through a chain.

The roller 133 is provided with a fluted disc 134, the inner wall of the caterpillar band 132 is fixedly provided with a rack 135, and the fluted disc is connected with the rack 135 in a meshed manner. In order to improve the transmission stability, the fluted disc 134 is provided with two groups, and is distributed at two ends of the roller 133, and the inner wall of the crawler 132 is correspondingly provided with two racks 135. In order to enhance the transmission stability, at least one group of support rollers 136 is disposed in the roller mechanism 13, the support rollers 136 are limited between the two groups of rollers 133, and the support rollers 136 are in abutting fit with the crawler 132. The support roller 136 is connected to the outer frame 11 at both ends, and a bearing may be provided on an inner wall of the outer frame 11, and the support roller 136 is connected to the bearing.

The roller 133 is further provided with an eccentric bearing 137, and the swing arm 14 is fixed to an outer wall of the eccentric bearing 137. The front end of the swing arm 14 is connected with the screen plate 12 to drive the screen plate 12 to swing. The side of the screen plate 12 is provided with a mounting seat 121, the mounting seat 121 is provided with a hinge post 122, the front end of the swing arm 14 is provided with a hinge member 141, and the hinge member and the hinge post 122 form hinge fit. The hinge member 141 is a ring structure and is sleeved on the hinge post 122 to rotate around the hinge post.

In order to keep the screen plate 12 moving forward and backward, a chute 111 is provided on the inner wall of the outer frame 11, rollers 123 are provided on the sides of the screen plate 12, and the rollers 123 are limited in the chute 111. Through setting up this mechanism, avoid screen plate 12 to produce the displacement in vertical direction, when guaranteeing the screening effect, also guaranteed screening mechanism's stability can.

After harvesting, the corn is peeled and threshed by the peeling assembly 2 and then falls into the screening apparatus 1. The screening mechanism 1 comprises a roller mechanism 13 and a screen plate 12, which are matched with each other to realize screening.

Claims (9)

1. The utility model provides a maize screening mechanism that peels, includes sieving mechanism (1), sets up in the below of peeling assembly (2), its characterized in that sieving mechanism (1) includes frame (11), the top of frame (11) is open structure, and the bottom sets up sieve (12), and the side is provided with swing arm (14), swing arm (14) with sieve (12) fixed connection, the drive sieve (12) remove, be provided with roller mechanism (13) in the inner chamber of frame (11), the surface staggered arrangement of roller mechanism (13) is provided with scraper blade (131), roller mechanism (13) rotate the in-process, and scraper blade (131) are continuous to pushing the kernel of corn that falls on sieve (12).

2. Corn husking and screening mechanism according to claim 1, further comprising a driving device (3), wherein the driving device (3) is arranged on the outer side of the outer frame (11), the roller mechanism (13) comprises two groups of tracks (132) and rollers (133), the tracks (132) and the rollers (133) are combined to form a transmission structure, and one group of rollers (133) penetrate out of the side edge of the outer frame (11) and are connected with the driving device (3).

3. Corn husking and screening mechanism according to claim 2, characterized in that the roller (133) is provided with a fluted disc (134), the inner wall of the caterpillar band (132) is fixedly provided with a rack (135), and the fluted disc is meshed with the rack (135).

4. A corn husking and screening mechanism according to claim 2 or 3, characterized in that at least one group of supporting rollers (136) is arranged in the roller mechanism (13), the supporting rollers (136) are limited between two groups of rollers (133), and the supporting rollers (136) are in abutting fit with the caterpillar tracks (132).

5. Corn husking and screening mechanism according to claim 2, characterized in that the roller (133) is further provided with an eccentric bearing (137), and the swing arm (14) is fixed to the outer wall of the eccentric bearing (137).

6. A corn husking and screening mechanism according to claim 1 or 5, characterized in that the front end of the swing arm (14) is connected to the screen plate (12) to drive the screen plate (12) to swing.

7. The corn husking and screening mechanism according to claim 6, wherein a mounting seat (121) is arranged on the side edge of the screen plate (12), a hinge post (122) is arranged on the mounting seat (121), and a hinge piece (141) is arranged at the front end of the swing arm (14) and is in hinge fit with the hinge post (122).

8. The corn husking and screening mechanism according to claim 6, wherein a chute (111) is formed in the inner wall of the outer frame (11), rollers (123) are arranged on the side edges of the screen plate (12), and the rollers (123) are limited in the chute (111).

9. A corn husking and screening mechanism according to claim 2, characterized in that the driving means (3) is a gear set, which is in transmission connection with an external power take-off mechanism via a chain.