Tractor for agricultural machinery

Abstract

The utility model discloses a tractor for agricultural machinery. The tractor comprises a driving assembly, the driving assembly comprises a first rotating shaft which rotates on a reduction gearbox of the driving assembly; supporting rods are mounted on the two sides of the first rotating shaft; mounting plates are mounted at the two ends of the supporting rod; second rotating shafts are rotationally mounted on the two mounting plates, and traveling wheels are mounted on the second rotating shafts; a third rotating shaft connected with the first rotating shaft is rotationally mounted on the mounting plate; first gears are mounted at the ends, extending out of the mounting plates, of the third rotating shafts; and a transmission assembly for connecting the first gear and the second rotating shaft is mounted on the mounting plate. The utility model has the advantages that the walking wheel can be driven to rotate, and power can be provided for working parts.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery traction machine technology, and in particular to an agricultural machinery traction machine. Background Technology

[0002] Most existing agricultural machinery, such as transplanting hole punchers, requires a tractor to move its working parts. Some agricultural machinery (such as rotary tillers) has working parts that need to contact and rotate with the ground; these parts can be directly mounted on the output shaft of their drive assembly, eliminating the need for wheels. However, transplanting hole punchers perform intermittent up-and-down drilling operations. Therefore, these types of machinery require wheels and thus a dual power source for both driving the wheels and moving the working parts. Designing a tractor that can both drive the wheels and power the working parts is promising for reducing machine cost and weight. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an agricultural tractor that can both drive the walking wheels to rotate and provide power to the working parts.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is an agricultural machinery traction machine, including a drive assembly; the drive assembly includes a first rotating shaft that rotates on its reduction gearbox; support rods are installed on both sides of the first rotating shaft; mounting plates are installed at both ends of the support rods; a second rotating shaft is rotatably installed on each of the two mounting plates, and a traveling wheel is installed on the second rotating shaft; a third rotating shaft connected to the first rotating shaft is rotatably installed on the mounting plate; a first gear is installed at one end of the third rotating shaft that extends out of the mounting plate; and a transmission assembly for connecting the first gear and the second rotating shaft is installed on the mounting plate.

[0005] Furthermore, the transmission assembly includes a second gear that meshes with the first gear and is rotatably mounted on the mounting plate; a first sprocket is mounted on the other end of the shaft on which the second gear is mounted; a second sprocket is mounted on the other end of the second shaft; and the first sprocket and the second sprocket are connected by a chain.

[0006] Furthermore, two sets of first support plates are fixedly connected to each of the two support rods; a support frame is fixedly connected between each set of first support plates; and a second bearing seat for rotatably mounting the first rotating shaft is installed on the support frame.

[0007] Furthermore, the first rotating shaft and the third rotating shaft are detachably connected by a first bushing; a second bushing is detachably installed on the first bushing; and a drive sprocket is installed on the second bushing.

[0008] Furthermore, a third support plate is installed on the support rods on both sides; a first bearing seat for rotatably mounting the third shaft is installed on the third support plate.

[0009] Furthermore, a second support plate is fixedly connected to each of the support rods on both sides; the third support plate is detachably installed between the two second support plates.

[0010] Furthermore, several reinforcing plates are fixedly connected between the support rods.

[0011] Furthermore, the third shaft and transmission assembly are not installed on one of the mounting plates.

[0012] In another further embodiment, the third shaft is rotatably mounted on both mounting plates; a first gear is mounted on each of the two third shafts, and a transmission assembly is mounted on each of the two mounting plates; one end of the first shaft is connected to one of the third shafts via a coupling, and the other end is connected to the other third shaft via a differential mechanism.

[0013] Furthermore, both reinforcing plates are equipped with third bearing seats for rotatably mounting the third shaft; the differential mechanism includes two half-shaft gears respectively mounted at one end of the first shaft and the third shaft, two planetary gears symmetrically arranged and meshing with both half-shaft gears, and a housing for rotatably mounting the planetary gears; the housing is formed by two detachably connected half-shells and covers the outside of the half-shaft gears and the planetary gears; one end of the housing is mounted on the outside of one of the half-shaft gears, or on the third shaft or the first shaft.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, the power of the drive assembly is transmitted to a third shaft connected to it via a first shaft. The third shaft drives a first gear to rotate, which in turn drives a second gear and a first sprocket to rotate. The first sprocket then drives a second sprocket via a chain, ultimately rotating the traveling wheel. By appropriately setting the parameters of the gear and sprocket sets, the traveling wheel can achieve a suitable rotational speed to meet its operational requirements.

[0016] The installation position of the drive sprocket can be adjusted as needed by detachably installing the second bushing and the drive sprocket. Rotation of the first shaft drives the drive sprocket. After installing the working component, a sprocket is installed on the shaft that needs to rotate on the working component, and a chain is used to connect the drive sprocket to the sprocket on the working component, thus transmitting the traction machine's power to the working component. Attached Figure Description

[0017] Figure 1 This is a side view of the overall structure of Example 1;

[0018] Figure 2 This is a top view of part of the structure in Example 1;

[0019] Figure 3 This is a schematic diagram of the inner structure of the mounting plate in Example 1;

[0020] Figure 4 This is an assembly drawing of a partial structure of Example 1;

[0021] Figure 5 This is a partial structural cross-sectional view of Example 1;

[0022] Figure 6 This is a partial structural side view of Example 2;

[0023] Figure 7 This is a partial structural side view of Example 3;

[0024] Figure 8 for Figure 7 Enlarged schematic diagram of the center differential mechanism;

[0025] Figure 9 Example 4: Partial structural side view.

[0026] In the diagram, 1-drive assembly, 2-walking wheel, 3-first shaft, 4-first bushing, 5-support rod, 6-reinforcing plate, 7-first support plate, 8-support frame, 9-second bushing, 10-drive sprocket, 11-second bearing seat, 12-second support plate, 13-third support plate, 14-second shaft, 15-second sprocket, 16-first bearing seat, 17-first sprocket, 18-second gear, 19-mounting plate, 20-third shaft, 21-first gear, 22-third bearing seat, 23-differential mechanism, 2301-half shaft gear, 2302-planetary gear, 2303-housing. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] Example 1

[0029] A type of agricultural tractor, such as Figure 1-5As shown, the drive assembly includes a drive component 1; the drive component 1 includes a first rotating shaft 3 that rotates on its reduction gearbox; support rods 5 are mounted on both sides of the first rotating shaft 3; mounting plates 19 are mounted on both ends of the support rods 5; second rotating shafts 14 are rotatably mounted on both mounting plates 19, and wheels 2 are mounted on the second rotating shafts 14; a third rotating shaft 20 connected to the first rotating shaft 3 is rotatably mounted on one of the mounting plates 19; a first gear 21 is mounted on one end of the third rotating shaft 20 extending out of the mounting plate 19; a transmission assembly for connecting the first gear 21 and the second rotating shaft 14 is mounted on the mounting plate 19. The first rotating shaft 3 is an integral part of the drive assembly 1. The third rotating shaft 20 and the transmission assembly are not mounted on the other mounting plate 19.

[0030] In this embodiment, the drive component 1 is existing technology, including components such as a gasoline or diesel engine and a reduction gearbox, which can output the rotational motion of the first rotating shaft 3. It can be the drive part of a commonly available micro-tiller. In this embodiment, the drive component 1 was purchased from Chongqing Yaohu Power Machinery Co., Ltd.

[0031] Specifically, the transmission assembly includes a second gear 18 that meshes with the first gear 21 and is rotatably mounted on the mounting plate 19; a first sprocket 17 is mounted on the other end of the shaft on which the second gear 18 is mounted; a second sprocket 15 is mounted on the other end of the second shaft 14; and the first sprocket 17 and the second sprocket 15 are connected by a chain.

[0032] In the aforementioned agricultural tractor, the power of the drive assembly is transmitted to the third shaft 20 connected to it via the first shaft 3. The third shaft 20 drives the first gear 21 to rotate, which in turn drives the second gear 18 and the first sprocket 17 to rotate. Then, the first sprocket 17 drives the second sprocket 15 to rotate via a chain, ultimately driving the traveling wheel 2 to rotate. By properly setting the parameters of the gear set and sprocket set, the traveling wheel 2 can obtain a suitable speed to meet its working requirements.

[0033] Specifically, two sets of first support plates 7 are fixedly connected to each of the two support rods 5; a support frame 8 is fixedly connected between each set of first support plates 7; a second bearing seat 11 for rotatably mounting the first rotating shaft 3 is installed on the support frame 8. The weight of the drive assembly 1 acts on the second bearing seat 11 through the first rotating shaft 3, and thus on the support rods 5.

[0034] Specifically, in order to improve the installation strength of the traction machine, several reinforcing plates 6 are fixed between the support rods 5.

[0035] Specifically, a third bearing seat 22 for rotatably mounting the third shaft 20 is installed on the reinforcing plate 6 on the side where the third shaft 20 is installed.

[0036] Specifically, a protective cover is installed on the inner side of the mounting plate 19, covering the outside of the first sprocket 17 and the second sprocket 15. The protective cover is not shown in the figure.

[0037] Specifically, the two first support plates 7 located on one side are provided with connection holes for connecting external working parts; or a connecting plate is installed on the support rod 5, and connection holes for connecting external working parts are provided on the connecting plate.

[0038] Specifically, a counterweight is installed on the mounting plate 19, where the third shaft 20 is not installed. The counterweight serves to balance the weight. The counterweight is not shown in the figure.

[0039] Example 2

[0040] A type of agricultural tractor, such as Figure 6 As shown, compared to Embodiment 1, the third bearing seat 22 is reduced, and the first bushing 4, the second bushing 9, the drive sprocket 10, the second support plate 12, the third support plate 13, and the first bearing seat 16 are added.

[0041] Specifically, the first rotating shaft 3 and the third rotating shaft 20 are detachably connected by the first bushing 4; the second bushing 9 is detachably installed on the first bushing 4; and the drive sprocket 10 is installed on the second bushing 9.

[0042] The installation position of the drive sprocket 10 can be adjusted as needed by detachably installing the second bushing 9 and the drive sprocket 10. Rotation of the first shaft 3 drives the drive sprocket 10 to rotate. After installing the working component, a sprocket is installed on the shaft that needs to rotate on the working component, and a chain is used to connect the drive sprocket 10 to the sprocket on the working component, thus transmitting the power of the traction machine to the working component. Installing the drive sprocket 10 on the first bushing 4, rather than directly on the third shaft 20, has the advantage of facilitating disassembly and replacement of the drive sprocket 10, making it more flexible in use.

[0043] Specifically, in order to improve the rotational stability of the third shaft 20, a third support plate 13 is installed on the support rods 5 on both sides; a first bearing seat 16 for rotatably mounting the third shaft 20 is installed on the third support plate 13.

[0044] Specifically, in order to facilitate the adjustment of the installation position of the first bearing seat 16, a second support plate 12 is fixedly connected to the support rods 5 on both sides; the third support plate 13 is detachably installed between the two second support plates 12.

[0045] The reinforcing plate 6 has a hole for the first bushing 4 to pass through.

[0046] Both Example 1 and Example 2 are single-sided driven walking mechanisms, which are simple in structure and low in cost.

[0047] Example 3

[0048] A type of agricultural tractor, such as Figure 7-8 As shown, compared to Embodiment 1, the counterweight has been reduced and some parts have been added. Specifically, a third shaft 20 is rotatably mounted on both mounting plates 19; a first gear 21 is mounted on both third shafts 20, and a transmission assembly is mounted on both mounting plates 19; one end of the first shaft 3 is connected to one of the third shafts 20 via a coupling, and the other end is connected to the other third shaft 20 via a differential mechanism 23.

[0049] Both reinforcing plates 6 are equipped with third bearing seats 22 for rotatably mounting the third shaft 20; the differential mechanism 23 includes two half-shaft gears 2301 respectively mounted on one end of the first shaft 3 and the third shaft 20, two planetary gears 2302 symmetrically arranged and meshing with both half-shaft gears 2301, and a housing 2303 for rotatably mounting the planetary gears 2302; the housing 2303 is formed by two half-shells detachably connected and covers the outside of the half-shaft gears 2301 and the planetary gears 2302; one end of the housing 2303 is mounted on the outside of one of the half-shaft gears 2301, or mounted on the third shaft 20 or the first shaft 3.

[0050] The working principle of the differential mechanism 23 is as follows: When driving normally, the power of the drive component drives the half-shaft gear 2301 and housing 2303 connected to it to rotate through the first rotating shaft 3, which drives the planetary gear 2302 to revolve, thereby driving the two half-shaft gears 2301 to rotate synchronously; when turning, the planetary gear 2302 generates its own rotation while revolving, and the rotation speed of the inner travel wheel 2 is less than the rotation speed of the outer travel wheel 2, thereby adapting to the travel difference between the inner and outer travel wheels 2 when turning.

[0051] Example 4

[0052] A type of agricultural tractor, such as Figure 9 As shown, compared to Embodiment 2, the counterweight has been reduced and some parts have been added. Specifically, a third rotating shaft 20 is rotatably mounted on both mounting plates 19; a first gear 21 is mounted on both third rotating shafts 20, and a transmission assembly is mounted on both mounting plates 19; one end of the first rotating shaft 3 is connected to one of the third rotating shafts 20 through a first bushing 4, and the other end is connected to the other third rotating shaft 20 through a differential mechanism.

[0053] Specifically, the differential mechanism has the same structure as the differential mechanism 23 in Example 3.

[0054] Compared to Example 1, Examples 3 and 4 add a differential mechanism 23, which changes the single-side drive to a dual-side drive, resulting in better stability.

[0055] In embodiments 1 and 2, the first rotating shaft 3 can be either a round shaft or a polygonal shaft. If the first rotating shaft 3 is a polygonal shaft, then the inner hole of the first bushing 4 and the bearing seat that mate with the first rotating shaft 3 must also be a polygonal shape.

[0056] The working principle of this utility model:

[0057] The power of the drive assembly is transmitted to the third shaft 20 connected to it via the first shaft 3. The third shaft 20 drives the first gear 21 to rotate, which in turn drives the second gear 18 and the first sprocket 17 to rotate. Then, the first sprocket 17 drives the second sprocket 15 to rotate via a chain, ultimately driving the traveling wheel 2 to rotate. By properly setting the parameters of the gear set and sprocket set, the traveling wheel 2 can obtain a suitable speed to meet its working requirements.

[0058] The installation position of the drive sprocket 10 can be adjusted as needed by detachably installing the second bushing 9 and the drive sprocket 10. Rotation of the first shaft 3 drives the drive sprocket 10 to rotate. After installing the working component, a sprocket is installed on the shaft that needs to rotate on the working component, and a chain is used to connect the drive sprocket 10 to the sprocket on the working component, thus transmitting the power of the agricultural machinery tractor to the working component. Installing the drive sprocket 10 on the first bushing 4, rather than directly on the third shaft 20, facilitates the disassembly and replacement of the drive sprocket 10, making its use more flexible.

[0059] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A tractor for agricultural machinery, comprising a drive assembly (1); characterized in that: The drive assembly (1) includes a first shaft (3) that rotates on its gearbox; support rods (5) are mounted on both sides of the first shaft (3); mounting plates (19) are mounted on both ends of the support rods (5); a second shaft (14) is rotatably mounted on each of the two mounting plates (19), and a traveling wheel (2) is mounted on the second shaft (14); a third shaft (20) connected to the first shaft (3) is rotatably mounted on the mounting plate (19); a first gear (21) is mounted on one end of the third shaft (20) that extends out of the mounting plate (19); and a transmission assembly for connecting the first gear (21) and the second shaft (14) is mounted on the mounting plate (19).

2. The agricultural tractor according to claim 1, characterized in that: The transmission assembly includes a second gear (18) that meshes with the first gear (21) and is rotatably mounted on the mounting plate (19); a first sprocket (17) is mounted on the other end of the shaft on which the second gear (18) is mounted; a second sprocket (15) is mounted on the other end of the second shaft (14); the first sprocket (17) and the second sprocket (15) are connected by a chain.

3. The agricultural tractor according to claim 1, characterized in that: Two sets of first support plates (7) are fixedly connected to each of the two support rods (5); a support frame (8) is fixedly connected between each set of first support plates (7); a second bearing seat (11) for rotatably mounting the first rotating shaft (3) is installed on the support frame (8).

4. The agricultural tractor according to claim 1, characterized in that: The first rotating shaft (3) and the third rotating shaft (20) are detachably connected by a first bushing (4); a second bushing (9) is detachably installed on the first bushing (4); a drive sprocket (10) is installed on the second bushing (9).

5. The agricultural tractor according to claim 4, characterized in that: A third support plate (13) is installed on the support rods (5) on both sides; a first bearing seat (16) for rotatably mounting the third shaft (20) is installed on the third support plate (13).

6. The agricultural tractor according to claim 5, characterized in that: A second support plate (12) is fixedly connected to each of the support rods (5) on both sides; the third support plate (13) is detachably installed between the two second support plates (12).

7. The agricultural tractor according to claim 1, characterized in that: Several reinforcing plates (6) are fixedly connected between the support rods (5).

8. The agricultural tractor according to any one of claims 1-7, characterized in that: The third shaft (20) and transmission assembly are not installed on the mounting plate (19) on one side.

9. The agricultural tractor according to claim 7, characterized in that: Both mounting plates (19) are rotatably mounted with the third shaft (20); both third shafts (20) are mounted with a first gear (21), and both mounting plates (19) are mounted with a transmission assembly; one end of the first shaft (3) is connected to the other third shaft (20) through a differential mechanism (23).

10. The agricultural tractor according to claim 9, characterized in that: Both of the reinforcing plates (6) are equipped with third bearing seats (22) for rotatably mounting the third shaft (20); the differential mechanism (23) includes two half-shaft gears (2301) respectively mounted on one end of the first shaft (3) and the third shaft (20), two planetary gears (2302) symmetrically arranged and meshing with both half-shaft gears (2301), and a housing (2303) for rotatably mounting the planetary gears (2302); the housing (2303) is formed by two half-shells detachably connected and covers the outside of the half-shaft gears (2301) and the planetary gears (2302); one end of the housing (2303) is mounted on the outside of one of the half-shaft gears (2301), or mounted on the third shaft (20) or the first shaft (3).

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