Gear for gearbox of harvester

Abstract

The utility model discloses a gear for a gearbox of a harvester, which comprises an internal gear body (1), and an annular groove (2) is arranged on the edge of the top surface of the internal gear body (1); a plurality of first magnet sheets (3) which are uniformly distributed are arranged on the inner bottom surface of the groove (2), and a plurality of tenon blocks (4) which are uniformly distributed are arranged on the inner side surface of the groove (2); two symmetrically-distributed outer gear bodies (5) are installed in the groove (2), and a plurality of second magnet pieces (6) matched with the first magnet pieces (3) are arranged on the bottom face of each outer gear body (5). A plurality of evenly-distributed teeth (7) are arranged on the outer side face of each outer gear body (5), and a plurality of mortises (8) matched with the tenon blocks (4) are formed in the inner side face of each outer gear body (5). The utility model not only is convenient to overhaul, but also has the advantages of low overhaul cost, high structural stability, long service life and high use comfort.

Description

Technical Field

[0001] The utility model relates to a gear, in particular to a gear for a harvester gearbox. Background Art

[0002] A harvester is a machine used to harvest agricultural products. It can complete harvesting and threshing at one time. It can also collect grains and other tasks. In the process of harvester operation, gears are the most important driving parts. Existing harvester gears are generally one-piece structures. When the teeth on the gear are worn, meshing slips or breaks, the entire gear needs to be removed and replaced. However, because the harvester structure is relatively complex, many gears are installed around the outside. Other parts are installed at this time. To inspect and replace such gears, the surrounding parts need to be removed first, and then the gear can be removed and replaced, which is very inconvenient to operate. Therefore, the existing harvester gears have the problem of inconvenient maintenance during the inspection and replacement process. Utility Model Content

[0003] The utility model aims to provide a gear for a harvester gearbox, and the utility model has the advantage of convenient maintenance.

[0004] The technical solution of the utility model is as follows: a gear for a harvester gearbox, comprising an internal gear body, an annular groove is provided on the edge of the top surface of the internal gear body; a plurality of evenly distributed first magnet sheets are provided on the inner bottom surface of the groove, and a plurality of evenly distributed tenons are provided on the inner side surface of the groove; two symmetrically distributed external gear bodies are installed in the groove, and a plurality of second magnet sheets matched with the first magnet sheets are provided on the bottom surface of each external gear body; a plurality of evenly distributed teeth are provided on the outer side surface of each external gear body, and a plurality of tenons matched with the tenons are provided on the inner side surface of each external gear body; the internal gear body and the external gear body are connected together by means of the first magnet and the second magnet, so that when the teeth on the external gear are worn or damaged, the corresponding external gear body can be directly removed and replaced, which is more convenient than the previous gear replacement method in which the outer parts need to be disassembled before the gear can be removed for replacement, and the replacement cost will be correspondingly reduced; the mutual cooperation of the tenons and the tenons can increase the stability of the connection between the internal gear body and the external gear body, thereby improving the stability of the structure.

[0005] In the aforementioned gear for a harvester gearbox, a first mounting groove is provided on the inner bottom surface of the groove at the position corresponding to each first magnet piece, and a buffer is fitted on the inner wall of each first mounting groove; a sound-absorbing layer is fitted between each buffer and the inner wall of the first mounting groove; the first mounting groove is used to hide the first magnet piece on the inner gear body, thereby improving the tightness of the connection between the outer gear body and the inner gear body, thereby ensuring the stability of the gear; the buffer on the inner wall of the first mounting groove can provide shock-absorbing protection for the first magnet piece, thereby extending the service life; the provision of the sound-absorbing layer between the buffer and the inner wall of the first mounting groove can absorb the noise generated during the operation of the gear to a certain extent, thereby reducing the noise of the gear operation.

[0006] In the aforementioned gear for a harvester gearbox, a second mounting groove is provided on the end surface of each external gear body facing the other external gear body, and a magnet is provided in each second mounting groove; the magnet is used to attract the two external gear bodies, thereby further improving the stability of the structure.

[0007] In the aforementioned gear for a harvester gearbox, the outer gear body is provided with a plurality of evenly distributed sound-absorbing cavities, and each sound-absorbing cavity is provided with a plurality of evenly distributed sound-absorbing panels; sound-absorbing cotton is filled between each two adjacent sound-absorbing panels; the sound-absorbing panels and sound-absorbing cotton can absorb and weaken the noise generated by the operation of the gears, thereby improving the comfort of the working environment; and the sound-absorbing panels and sound-absorbing cotton cooperate with each other to reduce the weight of the entire outer gear body.

[0008] In the aforementioned gear for a harvester gearbox, both ends of the external gear body are provided with fixing holes; the internal gear body is provided with a fixing thread groove at a position corresponding to each fixing hole, and a fastener is provided between the fixing thread groove and the fixing hole.

[0009] Compared with the prior art, the utility model improves the existing harvester gear by configuring the entire gear to be composed of an internal gear body and multiple external gear bodies, and the internal gear body and the external gear body are connected together by means of a first magnet and a second magnet, so that when the teeth on the external gear are worn or damaged, the corresponding external gear body can be directly removed and replaced. Compared with the previous gear replacement method that requires disassembling the outer parts before the gear can be removed and replaced, not only is maintenance more convenient, but the cost of replacement will also be correspondingly reduced; at the same time, by providing a tenon groove on the external gear body and a tenon block on the internal gear body, the mutual cooperation of the tenon block and the tenon groove can increase the stability of the connection between the internal gear body and the external gear body, thereby improving the stability of the structure. In addition, the utility model also provides a first installation groove for accommodating the first magnet sheet on the groove, and uses the first installation groove to hide the first magnet sheet on the inner gear body, thereby improving the tightness of the connection between the outer gear body and the inner gear body, thereby ensuring the stability of the gear; and the buffer member on the inner side wall of the first installation groove can provide shock-absorbing protection for the first magnet sheet, thereby extending the service life; the provision of a sound-absorbing layer between the buffer member and the inner side wall of the first installation groove can absorb the noise generated during the operation of the gear to a certain extent, thereby reducing the noise of the gear operation; by providing magnets on both end faces of the outer gear body, the two outer gear bodies are attracted by the magnets. , thereby further improving the stability of the structure; by providing multiple sound-absorbing cavities in the outer gear body, each sound-absorbing cavity is provided with multiple sound-absorbing panels and sound-absorbing cottons, the noise generated by the gear working can be absorbed and weakened by the sound-absorbing panels and sound-absorbing cottons, thereby improving the comfort of the working environment; and the weight of the entire outer gear body can be reduced by using the mutual cooperation of the sound-absorbing panels and sound-absorbing cottons; by providing a fixing hole on the outer gear body, a fixing thread groove on the inner gear body, and a fastener between the fixing hole and the fixing thread groove, the fastener can further increase the tightness of the connection between the outer gear body and the inner gear body, thereby further improving the stability of the structure. Therefore, the utility model is not only convenient for maintenance, but also has the advantages of low maintenance cost, high structural stability, long service life and high comfort in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a side view of the utility model;

[0012] Figure 3 is a bottom view of the external gear body;

[0013] Figure 4 is a top view of the internal gear body;

[0014] Figure 5 yes Figure 1 A partial enlarged view of the middle A;

[0015] Figure 6 yes Figure 4 A partial enlarged view of point B in the middle.

[0016] The marks in the accompanying drawings are: 1-inner gear body, 2-groove, 3-first magnet sheet, 4-tenon, 5-outer gear body, 6-second magnet sheet, 7-teeth, 8-tenon, 9-first mounting groove, 10-buffer, 11-sound absorbing layer, 12-second mounting groove, 13-magnet, 14-sound absorbing cavity, 15-sound absorbing board, 16-sound absorbing cotton. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0018] Embodiment. A gear for a harvester gearbox, comprising: Figures 1 to 6 As shown, it includes an internal gear body 1, and an annular groove 2 is provided on the edge of the top surface of the internal gear body 1; a plurality of evenly distributed first magnet sheets 3 are provided on the inner bottom surface of the groove 2, and a plurality of evenly distributed tenons 4 are provided on the inner side surface of the groove 2; two symmetrically distributed external gear bodies 5 are installed in the groove 2, and a plurality of second magnet sheets 6 matching with the first magnet sheets 3 are provided on the bottom surface of each external gear body 5; a plurality of evenly distributed teeth 7 are provided on the outer side surface of each external gear body 5, and a plurality of tenons 8 matching with the tenons 4 are provided on the inner side surface of each external gear body 5.

[0019] A first mounting groove 9 is provided on the inner bottom surface of the groove 2 at a position corresponding to each first magnet sheet 3, and a buffer 10 is fitted on the inner side wall of each first mounting groove 9; a sound-absorbing layer 11 is fitted between each buffer 10 and the inner side wall of the first mounting groove 9; a second mounting groove 12 is provided on the end surface of each external gear body 5 facing another external gear body 5, and a magnet 13 is provided in each second mounting groove 12; a plurality of evenly distributed sound-absorbing cavities 14 are provided in the external gear body 5, and a plurality of evenly distributed sound-absorbing panels 15 are provided in each sound-absorbing cavity 14; sound-absorbing cotton 16 is filled between each adjacent two sound-absorbing panels 15; fixing holes are provided at both ends of the external gear body 5; a fixing thread groove is provided at a position corresponding to each fixing hole on the internal gear body 1, and a fastener is provided between the fixing thread groove and the fixing hole.

[0020] Working principle: During assembly, it is only necessary to place the external gear body 5 in the groove 2, and align the tenon block 4 on the internal gear body 1 with the tenon groove 8 on the external gear body 5, and assemble the external gear body 5 and the internal gear body 1 together by using the mutual tenon connection between the tenon block 4 and the tenon groove 8. At the same time, the first magnet piece 3 on the inner top surface of the internal gear body 1 and the second magnet piece 6 on the external gear body 5 attract each other, which can further increase the connection points and the tightness of the connection between the internal gear body 1 and the external gear body 5; at the same time, when the two external gear bodies 5 are installed on the internal gear body 1, the magnet 13 between the end faces of the two external gear bodies 5 will also increase the two external gear bodies 5. The connection between the wheel bodies 5 can further increase the stability of the structure; in this way, the gears can be installed on the harvester for use; when the teeth 7 on the outer gear body 5 are worn or damaged, it is only necessary to remove the damaged outer gear body 5 from the inner gear body 1 and replace it with a new outer gear body 5, which can effectively avoid the disassembly and assembly of surrounding parts and facilitate maintenance; during use, the sound-absorbing layer in the first mounting groove 9 and the sound-absorbing board 15 and sound-absorbing cotton 16 in the outer gear body 5 can absorb and reduce the noise generated by the gear work, reduce the noise generation, and improve the comfort of use.

Claims

1. A gear for a harvester gearbox, characterized in that: The invention comprises an internal gear body (1), wherein an annular groove (2) is provided on the edge of the top surface of the internal gear body (1); a plurality of evenly distributed first magnet sheets (3) are provided on the inner bottom surface of the groove (2), and a plurality of evenly distributed tenons (4) are provided on the inner side surface of the groove (2); two symmetrically distributed external gear bodies (5) are installed in the groove (2), and a plurality of second magnet sheets (6) matching with the first magnet sheets (3) are provided on the bottom surface of each external gear body (5); a plurality of evenly distributed teeth (7) are provided on the outer side surface of each external gear body (5), and a plurality of tenons (8) matching with the tenons (4) are provided on the inner side surface of each external gear body (5).

2. The gear for a harvester gearbox according to claim 1, characterized in that: A first mounting groove (9) is provided on the inner bottom surface of the groove (2) at a position corresponding to each first magnet sheet (3); a buffer component (10) is bonded to the inner side wall of each first mounting groove (9); and a sound absorbing layer (11) is bonded between each buffer component (10) and the inner side wall of the first mounting groove (9).

3. The gear for a harvester gearbox according to claim 1, characterized in that: A second mounting groove (12) is provided on the end surface of each external gear body (5) facing the other external gear body (5), and a magnet (13) is provided in each second mounting groove (12).

4. The gear for a harvester gearbox according to claim 1, characterized in that: The outer gear body (5) is provided with a plurality of evenly distributed sound absorbing cavities (14), and each sound absorbing cavity (14) is provided with a plurality of evenly distributed sound absorbing panels (15); and sound absorbing cotton (16) is filled between every two adjacent sound absorbing panels (15).

5. A gear for a harvester gearbox according to any one of claims 1 to 4, characterized in that: Both ends of the external gear body (5) are provided with fixing holes; the internal gear body (1) is provided with a fixing thread groove at a position corresponding to each fixing hole, and a fastener is provided between the fixing thread groove and the fixing hole.

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