一种用于农田开沟的开沟机刀盘

Abstract

This invention discloses a ditching machine cutterhead for farmland ditching, belonging to the field of agricultural machinery technology. It includes a first outer cutterhead, a second outer cutterhead, a central disc, a planetary gear set, a soil-removing component, and a soil-digging component. The central disc is connected to the soil-removing component through a through hole. Both the first and second outer cutterheads have transmission chambers, each containing a planetary gear set. The first and second outer cutterheads are connected to mounting cylinders on the central disc via the planetary gear sets. A protrusion with teeth on the side of the second outer cutterhead closest to the groove on the central disc connects to the soil-removing component. Multiple mounting slots are provided on the side of the first and second outer cutterheads furthest from the central disc, and the soil-digging component is fixedly connected to the cutterhead through two corresponding mounting slots. This invention uses a planetary gear set to adjust the rotational speeds of the first and second outer cutterheads and the central disc, thereby adjusting the rotational speeds of the soil-digging and soil-removing components, resulting in better soil-digging performance.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, specifically relating to a ditching machine cutter disc for ditching farmland. Background Technology

[0002] With the gradual promotion and application of agricultural machinery and automation, many automated tillage machines have emerged, with ditching machines being one of them. Existing ditching machines have various cutter head designs. While primarily used for ditching farmland, current ditching machines all use a single curved blade for ditching. Although this method has a high soil-breaking effect, it is not efficient in digging, resulting in poor work efficiency. Therefore, how to provide a ditching machine cutter head specifically for farmland ditching is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] The main objective of this invention is to provide a ditching machine cutterhead for farmland ditching, thereby solving the aforementioned technical problems. This device is equipped with a planetary gear set to adjust the rotational speeds of the first outer cutterhead, the second outer cutterhead, and the central disc, thus adjusting the rotational speeds of the digging and pushing components. The digging component rotates at a slower speed, while the pushing component rotates at a faster speed. The digging component is used for breaking up the soil, and the pushing component is used for digging, resulting in better digging performance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A ditching machine cutterhead for farmland ditching includes a first outer cutterhead, a second outer cutterhead, a central disc, a planetary gear set, a soil-removing component, and a soil-digging component. The central disc has a groove on one side and mounting cylinders on both sides of its center. Multiple through holes are arranged circumferentially around the central disc, connecting it to the soil-removing component. One end of the soil-removing component extends into the groove through a through hole. Both the first and second outer cutterheads have transmission chambers containing planetary gear sets. These chambers are connected to the mounting cylinders on the central disc via the planetary gear sets. The second outer cutterhead is located on the side of the central disc with the groove, and a protrusion is located on the side of the second outer cutterhead closest to the groove. Teeth on the protrusion connect to the soil-removing component. Multiple mounting slots are located on the side of the first and second outer cutterheads furthest from the central disc, and the soil-digging component is fixedly connected via two corresponding mounting slots.

[0006] Furthermore, the excavating component has an arc-shaped ring structure.

[0007] Furthermore, the soil-digging component includes a connecting column, a soil-digging plate, and a bevel gear. One end of the connecting column extends through a through hole into the groove of the central disc and is connected to the bevel gear, while the other end is connected to the soil-digging plate. The bevel gear meshes with the toothed protrusions on the second outer cutter disc, and the soil-digging plate can move at the center of the arc-shaped ring structure of the soil-digging component.

[0008] Furthermore, the planetary gear set includes a first gear, a second gear, and an internal gear. The first gear is fixedly sleeved on the mounting sleeve of the central disk. Multiple transmission shafts are fixed on the transmission cavities inside the first and second outer cutter discs. The second gear is sleeved on each transmission shaft. An internal gear is fixedly installed on the inner wall of the transmission cavity. The first gear and the second gear mesh with each other, and the second gear and the internal gear mesh with each other.

[0009] Furthermore, bearings are provided at the contact points between the first and second outer cutter discs and the outer wall of the mounting cylinder on the central disc.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention uses a planetary gear set to adjust the rotational speed of the first outer cutter head, the second outer cutter head, and the central disc, thereby adjusting the rotational speed of the digging and pushing components. The digging component rotates at a slower speed, while the pushing component rotates at a faster speed. The digging component is used to break the soil, and the pushing component is used to dig, resulting in better digging effect. Furthermore, when the cutter head is used to dig highly viscous wet soil, it is easier to dig it out. At the same time as digging out wet soil, the digging and pushing components themselves can also be cleaned. The pushing component can shake off the wet soil by rotating, and the digging component can clean off the wet soil through the pushing component. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is a top view cross-sectional structural diagram of the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of the central cutter head.

[0016] Figure 4 This is a schematic diagram of the second outer cutter head.

[0017] Figure 5This is a schematic diagram of the back structure of the second outer cutter head.

[0018] Figure 6 This is a schematic diagram of the internal structure of the second outer cutter head.

[0019] Figure 7 This is a schematic diagram of the soil-removing component.

[0020] Among them, 1-first outer cutter head, 2-center disc, 2.1-threaded protrusion, 3-second outer cutter head, 4-soil-pulling component, 5-soil-digging component, 6-first gear, 7-second gear, 7.1-drive shaft, 8-internal gear, 9-mounting hole, 10-mounting groove. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-7 As shown, the present invention provides a ditching machine cutterhead for farmland ditching, including a first outer cutterhead 1, a second outer cutterhead 3, a central disc 2, a planetary gear set, a soil-removing component 4, and a soil-digging component 5. A groove is provided on one side of the central disc 2, and mounting cylinders are provided on both sides of the center of the central disc 2. Multiple through holes are provided circumferentially on the central disc 2, and the central disc 2 is connected to the soil-removing component 4 through the through holes. One end of the soil-removing component 4 extends into the groove through the through holes. Both the first outer cutterhead 1 and the second outer cutterhead 3 have transmission chambers, and planetary gear sets are provided in each transmission chamber. The first outer cutterhead 1 and the second outer cutterhead 3 are connected to the mounting cylinders on the central disc 2 through the planetary gear sets. The second outer cutterhead 3 is located on the side of the central disc 2 where the groove is located, and the second outer cutterhead 3 is close to... A protrusion is provided on one side of the groove of the central disc 2. The protrusion is provided with teeth that connect with the soil-digging component 4. Multiple mounting slots 10 are provided on the side of the first outer cutter disc 1 and the second outer cutter disc 3 away from the central disc 2. The soil-digging component 5 is fixedly connected through two corresponding mounting slots 10. The planetary gear set is used to adjust the rotation speed of the first outer cutter disc 1, the second outer cutter disc 3 and the central disc 2, thereby adjusting the rotation speed of the soil-digging component 5 and the soil-digging component 4. The rotation speed of the soil-digging component 5 is slower and the rotation speed of the soil-digging component 4 is faster, resulting in better soil-digging effect. When the cutter disc is used to dig out sticky wet soil, it is easier to dig it out. At the same time as digging out wet soil, the soil-digging component 5 and the soil-digging component 4 can also be cleaned. The soil-digging component 4 can shake off the wet soil by rotating, and the soil-digging component 5 can clean off the wet soil by the soil-digging component 4.

[0023] In this embodiment, the excavating component 5 is an arc-shaped ring structure.

[0024] In this embodiment, the soil-removing component 4 includes a connecting column, a soil-removing plate, and a bevel gear. One end of the connecting column extends through a through hole into the groove of the central disk 2 and is connected to the bevel gear. The other end is connected to the soil-removing plate. The bevel gear meshes with the toothed protrusions on the second outer cutter disc 3, thereby enabling the soil-removing component 4 to rotate. The soil-removing plate can move at the center of the arc-shaped ring structure of the soil-digging component 5.

[0025] In this embodiment, the planetary gear set includes a first gear 6, a second gear 7, and an internal gear 8. The first gear 6 is fixedly sleeved on the mounting cylinder of the central disc 2. Multiple transmission shafts 7.1 are fixed on the transmission cavities of the first outer cutter disc 1 and the second outer cutter disc 3. The second gear 7 is sleeved on each of the transmission shafts 7.1. The internal gear 8 is fixedly disposed on the inner wall of the transmission cavity. The first gear 6 and the second gear 7 mesh with each other, and the second gear 7 meshes with the internal gear 8. The first gear 6 and the second gear 7 have different numbers of teeth but the same diameter. The second gear 7 has fewer teeth and a lower rotational speed. The difference in diameter between the second gear 7 and the internal gear 8 results in a slower rotational speed for the internal gear. The internal gear 8 is fixed on the second outer cutter disc 3 and the first outer cutter disc 1. Therefore, when the first gear 6 rotates, the rotational speeds of the central disc 2, the first outer cutter disc 1, and the second outer cutter disc 3 will be different, with the central disc 2 rotating slower and the first outer cutter disc 1 and the second outer cutter disc 3 rotating faster.

[0026] In this embodiment, bearings are provided at the contact points between the first outer cutter disc 1 and the second outer cutter disc 3 and the outer wall of the mounting cylinder on the central disc 2.

[0027] Working principle: During use, the mounting cylinder of the central disc 2 is fixedly connected to the motor of the trencher. The motor drives the central disc 2 to rotate. When the central disc 2 rotates, it drives the mounting cylinder and the first gear 6 fixed on the mounting cylinder to rotate. The first gear 6 drives the second gear 7 to rotate, and the second gear 7 drives the inner gear 8 to rotate, thereby realizing the rotation of the first outer cutter disc 1 and the second outer cutter disc 3. Since the number of teeth of the first gear 6 and the second gear 7 is different, and the second gear 7 has fewer teeth, the rotation speeds of the first gear 6 and the second gear 7 are different, with the second gear 7 rotating at a slower speed. At the same time, the diameters of the second gear 7 and the inner gear 8 are different, which makes the rotation speed of the inner gear 8 even slower. This achieves the adjustment of the rotation speed of the first outer cutter disc 1 and the second outer cutter disc 3, so that the rotation speeds of the central disc 2 and the first outer cutter disc 1 and the second outer cutter disc 3 are different, while the first outer cutter disc 1 and the second outer cutter disc 3 rotate at the same speed, realizing the rapid digging and digging of soil using the soil-moving component 4 and the soil-excavating component 5.

[0028] Furthermore, when the second outer cutter disc 3 rotates slowly, the central disc 2 rotates at a relatively high speed, causing the bevel gear end of the soil-removing component 4 to rotate relative to the toothed protrusion on the second outer cutter disc 3, thus achieving the rotation of the soil-removing component 4. This results in a better soil-removing effect for the soil-removing component 4, and it is easier to dig out highly sticky wet soil when the cutter disc is used to dig it out. In addition, while digging out the wet soil, it can also clean the digging component 5 and the soil-removing component 4 themselves. The soil-removing component 4 can shake off the wet soil by rotating, and the digging component 5 can clean off the wet soil by the soil-removing component 4.

[0029] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ditching machine cutter disc for farmland ditching, characterized in that, The device includes a first outer cutter head (1), a second outer cutter head (3), a center disc (2), a planetary gear set, a soil-moving component (4), and a soil-digging component (5). The center disc (2) has a groove on one side, and mounting cylinders are provided on both sides of its center. The center disc (2) has multiple through holes circumferentially, and is connected to the soil-moving component (4) through these through holes. One end of the soil-moving component (4) extends into the groove through the through hole. Both the first outer cutter head (1) and the second outer cutter head (3) have transmission cavities, and each transmission cavity contains a planetary gear set. The first outer cutter disc (1) and the second outer cutter disc (3) are connected to the mounting cylinder on the central disk (2) through a planetary gear set. The second outer cutter disc (3) is located on one side of the central disk (2) where a groove is provided, and the second outer cutter disc (3) has a protrusion on the side of the central disk (2) near the groove. The protrusion has teeth that connect with the soil digging component (4). The first outer cutter disc (1) and the second outer cutter disc (3) have multiple mounting slots (10) on the side away from the central disk (2). The soil digging component (5) is fixedly connected through two corresponding mounting slots (10). The planetary gear set includes a first gear (6), a second gear (7), and an internal gear (8). The first gear (6) is fixedly sleeved on the mounting sleeve of the central disk (2). Multiple transmission shafts (7.1) are fixed on the transmission cavities of the first outer cutter disc (1) and the second outer cutter disc (3). The second gear (7) is sleeved on each of the transmission shafts (7.1). The internal gear (8) is fixedly installed on the inner wall of the transmission cavity. The first gear (6) meshes with the second gear (7), and the second gear (7) meshes with the internal gear (8).

2. The cutter head of a ditching machine for farmland ditching according to claim 1, characterized in that, The excavating component (5) is an arc-shaped ring structure.

3. The cutter head of a ditching machine for farmland ditching according to claim 1, characterized in that, The soil-removing component (4) includes a connecting column, a soil-removing plate, and a bevel gear. One end of the connecting column extends through a through hole into the groove of the central disc (2) and is connected to the bevel gear. The other end is connected to the soil-removing plate. The bevel gear meshes with the toothed protrusions on the second outer cutter disc (3). The soil-removing plate can move at the center of the arc-shaped ring structure of the soil-removing component (5).

4. The cutter head of a ditching machine for farmland ditching according to claim 1, characterized in that, Bearings are provided at the contact points between the first outer cutter disc (1) and the second outer cutter disc (3) and the outer wall of the mounting cylinder on the central disc (2).

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