Vertical snapping roller and snapping mechanism

Abstract

The utility model relates to a vertical ear picking roller and an ear picking mechanism, which comprise a cylindrical roller, and the cylindrical roller is sequentially provided with a feeding section, an ear picking section and an ear pulling section from bottom to top; the feeding section comprises a plurality of feeding teeth which are uniformly distributed along the circumferential side wall of the cylindrical roller; the ear picking section comprises a plurality of ear picking vertical ribs evenly distributed along the circumferential side wall of the cylindrical roller, the ear picking vertical ribs are provided with spiral ribs in a staggered mode, and the height of the section of each spiral rib is larger than that of the section of each ear picking vertical rib. The ear pulling section comprises a plurality of ear pulling vertical ribs which are evenly distributed along the circumferential side wall of the cylindrical roller, at least one ear picking vertical rib extends upwards to be arranged on the ear pulling section, and damage to ears can be reduced while effective stem pulling is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a vertical ear picking roller and an ear picking mechanism. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The ear picking device of a vertical ear picking roller type corn harvester is usually composed of two parallel ear picking rollers, the surface of which is provided with spiral ribs. The two ear picking rollers obtain power from the transmission device of the corn harvester to rotate in opposite directions, and the corn plants sandwiched in the gap between the two ear picking rollers are squeezed downward. Since the corn ears are larger than the gap between the two ear picking rollers, they are picked from the corn plants by the ear picking rollers.

[0004] The specific structure refers to a vertical ear picking and stem pulling roller, ear picking mechanism and corn harvester cutting table with publication number CN217407081 U, which has spiral ribs on the ear picking roller, an ear picking rib column extending downward and intersecting with the spiral ribs, and the ear picking rib column and the spiral ribs are in contact with the corn stalks, thereby improving the corn stem pulling ability and the stability of ear picking.

[0005] Although the above-mentioned ear picking and stem pulling roller can stably pick the ears, there are the following problems in terms of the degree of damage to the ears and grains:

[0006] Although the above-mentioned ear picking and stem pulling roller improves the uniform distribution ability by combining the spiral ribs with the rib column, the spacing between the spiral ribs is large. When the diameter of the corn is smaller than the pitch of the spiral ribs, the spiral ribs cannot support the corn cobs, so that when the ear picking vertical ribs pull the straw, the corn cobs come into contact with the rib column, and the vertical ribs touch the corn cobs, causing damage to the corn cobs. The existing ear picking mechanism cannot effectively pull the stems while reducing the damage to the ears. Utility Model Content

[0007] The utility model aims to provide a vertical ear picking roller and an ear picking mechanism, which can at least solve one of the above technical problems.

[0008] To achieve the above purpose, the utility model proposes a vertical ear picking roller and ear picking mechanism, comprising a cylindrical roller, wherein the cylindrical roller is provided with a feeding section, an ear picking section and an ear pulling section in sequence from bottom to top;

[0009] The feeding section comprises a plurality of feeding teeth evenly distributed along the circumferential side wall of the cylindrical roller;

[0010] The ear picking section includes a plurality of ear picking vertical ribs evenly distributed along the circumferential side wall of the cylindrical roller, wherein the ear picking vertical ribs are staggered with spiral ribs, and the height of the cross section of the spiral ribs is greater than the height of the cross section of the ear picking vertical ribs;

[0011] The ear pulling section comprises a plurality of ear pulling vertical ribs evenly distributed along the circumferential side wall of the cylindrical roller, and at least one ear picking vertical rib extends upwardly and is arranged in the ear pulling section.

[0012] It is further configured that the feeding section, the ear picking section and the ear pulling section are arranged in one piece.

[0013] It is further configured that the feeding teeth include tooth plates arranged along the length direction of the cylindrical roller, and the cross-section of the tooth plates is wavy.

[0014] It is further configured that the cross-sectional height of the ear pulling vertical reinforcement is greater than the cross-sectional height of the ear picking vertical reinforcement.

[0015] It is further configured that the pitch of the spiral ribs is smaller than the diameter of the fruit cluster.

[0016] It is further configured that the top end of the ear pulling rib extends to the top of the cylindrical roller, and the bottom end of the ear pulling rib extends to the upper side wall of the spiral rib.

[0017] It is further configured that a transmission shaft is arranged through the center of the cylindrical roller.

[0018] The utility model also discloses an ear picking mechanism, which is arranged on a harvester cutting table frame. The ear picking mechanism includes a group of cylindrical rollers, and the spiral directions of the spiral ribs on two ear picking sections in a group of cylindrical rollers are opposite, forming an ear picking channel between the ear picking vertical ribs of the ear pulling section.

[0019] It is further configured that a reed chain bracket is also provided on the harvester header frame, a group of the reed chain brackets is correspondingly arranged with a group of the cylindrical rollers, and the cylindrical rollers are perpendicular to the reed chain brackets.

[0020] It is further configured that a conveying chain is arranged inside each group of the straw-moving chain brackets, and straw is clamped between the conveying chains.

[0021] Beneficial effects of one or more of the above technical solutions:

[0022] The cross-sectional height of the spiral ribs is greater than that of the ear picking ribs, and the pitch of the spiral ribs is less than the diameter of the corn cob, so that during the ear picking process, the ear picking ribs clamp the straw for pulling the rod, and the spiral ribs always support the corn cobs, so that the ear picking ribs cannot touch the corn cobs when pulling the straw, thereby protecting the corn cobs and reducing breakage. Due to the setting of the ear pulling section, and the cross-sectional height of the ear pulling ribs of the ear pulling section is greater than the cross-sectional height of the ear picking ribs at this stage, the ear pulling ribs of the ear pulling section are greater than the ear picking ribs, and the rib gap between the two rollers is smaller than the rib gap of the ear picking section, so that the corn cobs that cannot be picked off are forced to be picked off in the ear pulling section, thereby ensuring effective stem pulling while reducing damage to the ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is a structural schematic diagram of the cylindrical roller of the utility model.

[0026] Figure 3 It is a structural schematic diagram of the reed chain bracket of the utility model.

[0027] Figure 4 It is a schematic structural diagram of the cylindrical roller of the utility model when it is working.

[0028] Figure 5 for Figure 4 Top view.

[0029] Figure 6 It is a schematic structural diagram of a group of cylindrical rollers of the utility model.

[0030] In the figure, 1 cylindrical roller;

[0031] 2 feeding sections; 21 feeding teeth;

[0032] 3 ear picking section; 31 ear picking vertical ribs; 32 spiral ribs;

[0033] 4 ear pulling section; 41 ear pulling ribs; 42 ear picking channel;

[0034] 5. Transmission shaft;

[0035] 6. Reed chain bracket; 61. Conveyor chain;

[0036] 7 bunches. DETAILED DESCRIPTION

[0037] The specific implementation of this embodiment is described below in conjunction with the accompanying drawings.

[0038] A vertical ear-picking roller, referring to Figure 1 and Figure 2 , including a cylindrical roller 1, on which a feeding section 2, an ear picking section 3 and an ear pulling section 4 are arranged in sequence from bottom to top; the feeding section 2 includes a plurality of feeding teeth 21 evenly distributed along the circumferential side wall of the cylindrical roller 1; the ear picking section 3 includes a plurality of ear picking ribs 31 evenly distributed along the circumferential side wall of the cylindrical roller 1, and the ear picking ribs 31 are staggered with spiral ribs 32, and the cross-section of the spiral ribs 32 is semicircular; the ear pulling section 4 includes a plurality of ear pulling ribs 41 evenly distributed along the circumferential side wall of the cylindrical roller 1, at least one ear picking rib 32 extends upwardly and is arranged in the ear pulling section 3, and after a group of cylindrical rollers are relatively arranged, an ear picking channel 42 is formed between the ear picking ribs 32 of the ear pulling section 3.

[0039] The feeding section 2, ear picking section 3 and ear pulling section 4 are integrally arranged, and the ear picking roller is divided into a stalk forced feeding section 2, a uniformly distributed ear picking section 3 and a forced ear picking section 4 according to the characteristics and functions of different parts.

[0040] The feeding teeth 21 include tooth pieces arranged along the length direction of the cylindrical roller 1 . The cross section of the tooth pieces is wavy. The tooth plates can be selected according to the needs. The tooth pieces can effectively grab the straw and feed it toward the cylindrical roller 1 .

[0041] The cross-sectional height of the ear pulling rib 41 is greater than the cross-sectional height of the ear picking rib 32. After the ear picking roller is installed, the center distance a of the cylindrical roller is a fixed value. When the diameter of the cylindrical roller 1 is the same, the larger the rib height h is, the larger the diameter φ of the ear picking roller is, and the smaller the gap L is after installation. The strength of the stem pulling ability is achieved by the size of L. The larger L is, the weaker the stem pulling ability is, and the worse the ear picking effect is.

[0042] Reference Figure 6 The pitch of the spiral rib 32 is smaller than the diameter of the cob, the cross-sectional height of the spiral rib is larger than the cross-sectional height of the cob picking rib, and the pitch of the spiral rib is smaller than the diameter of the corn cob. In the process of cob picking, the cob picking rib clamps the stalk to pull the rod, and the spiral rib always supports the corn cob, so that the cob picking rib cannot touch the corn cob when pulling the stalk.

[0043] The top end of the ear rib 41 extends to the top of the cylindrical roller 1, and the bottom end of the ear rib 41 extends to the upper side wall of the spiral rib. A transmission shaft 5 is set through the center of the cylindrical roller 1, and the transmission shaft 5 is driven to rotate by a power source. The transmission shaft 5 can be fixed to the cylindrical roller 1 through a spline connection, and the rotation of the transmission shaft 5 drives the cylindrical roller 1 to rotate.

[0044] Reference Figure 1 and Figure 3 The utility model also discloses an ear picking mechanism, which is arranged on a vertical harvesting table frame. The ear picking mechanism includes a group of cylindrical rollers 1, and the spiral directions of the spiral ribs 32 on the two ear picking sections 3 in a group of cylindrical rollers 1 are opposite, and at least one ear picking vertical rib 32 extends upward and is arranged on the ear pulling section 3. After a group of cylindrical rollers are relatively arranged, an ear picking channel 42 is formed between the ear picking vertical ribs 32 of the ear pulling section 3.

[0045] A reed chain bracket 6 is also provided on the vertical harvesting table frame. A group of reed chain brackets 6 is arranged corresponding to a group of cylindrical rollers 1 , and the cylindrical rollers 1 are perpendicular to the reed chain brackets 6 .

[0046] A conveying chain 61 is arranged inside each group of the straw-pulling chain brackets 6 , and the conveying chains 61 clamp the straws.

[0047] Reference Figure 4 and Figure 5 The working principle of the vertical header is as follows:

[0048] A group of cylindrical rollers 1 rotate in opposite directions, so that the spiral ribs 32 on one cylindrical roller 1 rotate clockwise, and the spiral ribs 32 on the other cylindrical roller 1 rotate counterclockwise. The corn stalks enter between the ear picking rollers under the clamping of the conveyor chain 61. When the corn stalks pass between the ear picking rollers, the corn cobs are peeled off the stalks by the ear picking rollers due to their large volume, enter the cob dropping channel, and fall onto the conveyor belt below to enter the next process.

[0049] The working process of the ear picking roller is described as follows:

[0050] After the corn stalks are cut from the corn field by the cutter, they enter the ear picking channel 42 of the ear picking roller under the clamping of the conveyor chain 61. The corn cobs are peeled off from the corn stalks by the ear picking roller in the ear picking channel 42, thereby harvesting the corn cobs.

[0051] In order to peel the corn cobs smoothly, the ear picking roller is respectively arranged with feeding teeth 21 for forced feeding, ear picking ribs 31, spiral ribs, and ear pulling ribs 41 for forced separation from bottom to top. The cylindrical rollers 1 are installed in pairs and arranged symmetrically, so that the ear picking ribs 31 can effectively peel the corn cobs. The spiral ribs protect the corn cobs from being pinched by the ear picking ribs 31 while evenly distributing the corn cobs. As the corn cobs are transported upward by the spiral ribs, the unpeeled corn cobs enter the ear pulling section 4 and are peeled under the action of the ear pulling ribs 41. To ensure the ear picking effect, the ear picking ribs 31 are evenly distributed on the circumference of the ear picking roller. The number of ear picking ribs 31 can be arranged as needed. The figure only illustrates 8 ear picking ribs 31.

[0052] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A vertical ear picking roller, characterized in that: It comprises a cylindrical roller, and the cylindrical roller is provided with a feeding section, an ear picking section and an ear pulling section in sequence from bottom to top; The feeding section comprises a plurality of feeding teeth evenly distributed along the circumferential side wall of the cylindrical roller; The ear picking section includes a plurality of ear picking vertical ribs evenly distributed along the circumferential side wall of the cylindrical roller, wherein the ear picking vertical ribs are staggered with spiral ribs, and the height of the cross section of the spiral ribs is greater than the height of the cross section of the ear picking vertical ribs; The ear pulling section comprises a plurality of ear pulling vertical ribs evenly distributed along the circumferential side wall of the cylindrical roller, and at least one ear picking vertical rib extends upwardly and is arranged in the ear pulling section.

2. The vertical ear picking roller according to claim 1, characterized in that: The feeding section, ear picking section and ear pulling section are integrated.

3. The vertical ear picking roller according to claim 1, characterized in that: The feeding teeth include tooth pieces arranged along the length direction of the cylindrical roller, and the cross section of the tooth pieces is wavy.

4. The vertical ear picking roller according to claim 1, characterized in that: The cross-sectional height of the ear pulling reinforcement is greater than the cross-sectional height of the ear picking reinforcement.

5. The vertical ear picking roller according to claim 1, characterized in that: The pitch of the spiral ribs is smaller than the diameter of the fruit cluster.

6. The vertical ear picking roller according to claim 1, characterized in that: The top end of the ear-pulling rib extends to the top of the cylindrical roller, and the bottom end of the ear-pulling rib extends to the upper side wall of the spiral rib.

7. The vertical ear picking roller according to claim 1, characterized in that: A transmission shaft is arranged through the center of the cylindrical roller.

8. An ear picking mechanism, characterized in that: The ear picking mechanism is arranged on the harvester's cutting table frame, and comprises a group of cylindrical rollers as described in any one of claims 1 to 7, and the spiral directions of the spiral ribs on the two ear picking sections in a group of cylindrical rollers are opposite, forming an ear picking channel between the ear picking vertical ribs of the ear pulling section.

9. The ear picking mechanism according to claim 8, characterized in that: A reed chain bracket is also provided on the harvester cutting table frame. A group of the reed chain brackets is correspondingly arranged with a group of the cylindrical rollers, and the cylindrical rollers are perpendicular to the reed chain brackets.

10. The ear picking mechanism according to claim 9, characterized in that: A conveyor chain is arranged inside each group of the straw-pulling chain brackets, and straw is clamped between the conveyor chains.

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