Ear pulling box device of corn harvester

Abstract

The utility model discloses a corn harvester ear pulling box device which is characterized in that a shell is provided with a worm shaft through a first bearing, one side of the worm shaft is provided with a worm thread, the other side of the worm shaft is provided with a connecting spline, the shell is provided with a worm wheel shaft through a second bearing, and one side of the worm wheel shaft is provided with a worm wheel; according to the corn harvester, the shifting rod capable of buffering is arranged, so that the shifting rod makes contact with corn stalks, meanwhile, a buffering acceleration process is provided for the corn stalks, the situation that mature corn falls to the ground when the corn stalks are shifted is avoided, and the harvesting success rate is increased; meanwhile, the arc-shaped grooves are formed in the worm gear teeth, the thickness of the worm gear teeth is increased, the stability of the worm gear is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery devices, in particular to an ear box device for a corn harvester. Background Art

[0002] The ear-pushing wheel is an important component of a corn harvester. Its function is to push the corn stalks toward the cutter during the corn harvesting process to achieve efficient ear picking. The existing ear-pushing wheel of the corn harvester does not have the function of buffering acceleration. When the ear-pushing wheel contacts the corn stalks, the ear-pushing wheel quickly pushes the corn stalks, and some overripe corn will fall to the ground while pushing the stalks, which reduces the success rate of harvesting and increases the workload of picking up corn later. In addition, the existing ear-pushing box transmission mechanism is driven by a worm gear assembly. The traditional worm gear is thin. When pushing the thicker stalks of corn stalks, the service life is not long, and the worm gear teeth are easily damaged, which increases the cost of repair and maintenance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a corn harvester ear box device for solving at least one of the above technical problems in view of the deficiencies in the prior art.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: A corn harvester ear box device comprises a shell, the shell is provided with a worm shaft through a first bearing, a worm thread is provided on one side of the worm shaft, and a connecting spline is provided on the other side of the worm shaft, the shell is provided with a worm wheel shaft through a second bearing, a worm wheel is provided on one side of the worm wheel shaft, a worm wheel is provided on the outer ring of the worm wheel with worm wheel teeth with arc grooves, the worm wheel teeth are meshed and connected with the worm thread, a dial is provided at the end of the worm wheel shaft through a fixing clamp, a plurality of levers are provided on the surface of the dial, one end of the lever is connected to the dial through a rotating shaft, a first spring seat is provided at the end of the lever, a second spring seat is provided on the dial, the second spring seat is provided corresponding to the first spring seat, the first spring seat and the second spring seat are connected by a spring, a limiting block is provided on the other side of the lever, and the limiting block is provided corresponding to the lever.

[0005] Furthermore, the lever is a long plate-like structure, and the side surface of the lever is arc-shaped.

[0006] Furthermore, the connecting splines are arranged on the outside of the shell.

[0007] Furthermore, one end of the worm shaft is arranged on the outside of the housing.

[0008] Furthermore, a mounting seat is provided on one side of the shell, and a mounting hole is provided on the mounting seat.

[0009] The beneficial effects of the utility model are:

[0010] The utility model is provided with a lever capable of buffering, so that the lever can provide a buffering acceleration process to the corn stalks while contacting the corn stalks, thereby preventing overripe corn from falling to the ground while the stalks are being pushed, thereby improving the success rate of harvesting and reducing the workload of subsequent corn picking. At the same time, arc grooves are provided on the worm gear teeth to thicken the thickness of the worm gear teeth, thereby improving the stability of the turbine and reducing the cost of repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0013] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0014] Housing 1; worm shaft 2; connecting spline 21; worm thread 22; first bearing 23; worm gear shaft 3; worm gear 32; worm gear teeth 33; fixing clamp 34; dial 4; lever 41; rotating shaft 42; first spring seat 43; second spring seat 44; spring 45; limit block 46. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0016] Example 1: See Figures 1 to 2The utility model is a schematic diagram of each structure, including a housing 1, a worm shaft 2 is provided on the housing 1 through a first bearing 23, a worm thread 22 is provided on one side of the worm shaft 2, a connecting spline 21 is provided on the other side of the worm shaft 2, and the connecting spline 21 is connected to the power device through transmission, a worm gear shaft 3 is provided on the housing 1 through a second bearing, a worm gear 32 is provided on one side of the worm gear shaft 3, and a worm gear tooth 33 with an arc groove is provided on the outer ring of the worm gear 32. The worm gear tooth 33 with the arc groove can avoid the conflict between the worm gear tooth 33 and the worm shaft 2 while thickening the worm gear tooth 33, and the worm gear tooth 33 and the worm thread 2 2 meshing connection, the end of the worm shaft 3 is provided with a dial 4 through a fixing clip 34, a plurality of levers 41 are provided on the surface of the dial 4, one end of the lever 41 is connected to the dial 4 through a rotating shaft 42, a first spring seat 43 is provided at the end of the lever 41, a second spring seat 44 is provided on the dial 4, the second spring seat 44 is provided corresponding to the first spring seat 43, the first spring seat 43 and the second spring seat 44 are connected by a spring 45, and the spring 45 is used for buffering, a limiting block 46 is provided on the other side of the lever 41, and the limiting block 46 is provided corresponding to the lever 41 to limit the lever 41.

[0017] Specifically, the lever 41 is a long plate-shaped structure, and the side surface of the lever 41 is arc-shaped, so that the straw can be easily separated from the lever 41.

[0018] Specifically, the connecting spline 21 is arranged outside the housing 1 .

[0019] Specifically, one end of the worm shaft 2 is arranged outside the housing 1 .

[0020] Specifically, a mounting seat is provided on one side of the housing 1, and a mounting hole is provided on the mounting seat to facilitate the installation of the device.

[0021] When the utility model is used, the spline 21 is connected to the power device for corn harvesting. When the corn stalks are moved, the lever 41 contacts the stalks, and the spring 45 contracts to buffer the impact force between the lever 41 and the stalks. At the same time, the corn stalks are slowly accelerated and pushed toward the cutter to achieve efficient ear picking. After the stalks are separated from the lever 41, the lever 41 is reset.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corn harvester ear box device, characterized in that: The invention comprises a housing (1), wherein the housing (1) is provided with a worm shaft (2) via a first bearing (23), a worm thread (22) is provided on one side of the worm shaft (2), and a connecting spline (21) is provided on the other side of the worm shaft (2), wherein the housing (1) is provided with a worm gear shaft (3) via a second bearing, a worm gear (32) is provided on one side of the worm gear shaft (3), a worm gear (33) with an arc groove is provided on the outer ring of the worm gear (32), the worm gear teeth (33) are meshingly connected with the worm thread (22), and a dial is provided at the end of the worm gear shaft (3) via a fixing clamp (34). (4), a plurality of levers (41) are provided on the surface of the dial (4), one end of the lever (41) is connected to the dial (4) via a rotating shaft (42), a first spring seat (43) is provided at the end of the lever (41), a second spring seat (44) is provided on the dial (4), the second spring seat (44) is provided corresponding to the first spring seat (43), the first spring seat (43) and the second spring seat (44) are connected via a spring (45), a limit block (46) is provided on the other side of the lever (41), and the limit block (46) is provided corresponding to the lever (41).

2. The corn harvester ear box device according to claim 1, characterized in that: The lever (41) is a long plate-shaped structure, and the side surface of the lever (41) is arc-shaped.

3. The ear box device of a corn harvester according to claim 1, characterized in that: The connecting spline (21) is arranged on the outside of the housing (1).

4. The ear box device for a corn harvester according to claim 1, characterized in that: One end of the worm shaft (2) is arranged outside the housing (1).

5. The ear box device of a corn harvester according to claim 1, characterized in that: A mounting seat is provided on one side of the housing (1), and a mounting hole is provided on the mounting seat.

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