Ditching machine cutterhead for farmland ditching

Abstract

The invention discloses a ditcher cutterhead for farmland ditching, and belongs to the technical field of agricultural machinery, the ditcher cutterhead comprises a first outer cutterhead, a second outer cutterhead, a central disc, a planetary gear set, a soil shifting part and a soil cutting part, the central disc is connected with the soil shifting part through a through hole, and transmission cavities are formed in the first outer cutterhead and the second outer cutterhead; planetary gear sets are arranged in the transmission cavities, the first outer cutterhead and the second outer cutterhead are connected with a mounting cylinder on the center disc through the planetary gear sets, protrusions are arranged on the side, close to a groove of the center disc, of the second outer cutterhead, and teeth are arranged on the protrusions and connected with a soil shifting part; a plurality of mounting grooves are formed in the sides, away from the center disc, of the first outer cutter head and the second outer cutter head, and the first outer cutter head and the second outer cutter head are fixedly connected with the earth cutting part through the two corresponding mounting grooves; the planetary gear set is used for adjusting the rotating speed of the first outer cutter head, the rotating speed of the second outer cutter head and the rotating speed of the center disc, the rotating speed of the soil cutting part and the rotating speed of the soil shifting part are adjusted, and the soil cutting effect is better.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a cutter disc of a trencher used for trenching in farmland. Background Art

[0002] With the gradual promotion and application of agricultural machinery and automation, many automated machines for tillage have emerged, and trenching machines are one of them. Existing trenching machines have various cutter heads. Trenching machines are mainly used for trenching in farmland. Existing trenching machines all use a single curved blade to trench. Although the soil-breaking effect is high, it is not possible to dig the soil efficiently, and the work efficiency is poor. Therefore, how to provide a trenching machine cutter head for trenching in farmland is a problem that technicians in this field need to solve urgently. Summary of the invention

[0003] The main purpose of the present invention is to provide a trenching machine cutter disc for trenching in farmland to solve the above technical problems. The device is provided with a planetary gear set to adjust the rotation speed of the first outer cutter disc, the second outer cutter disc and the center disc, and to adjust the rotation speed of the digging piece and the earth-moving piece. The rotation speed of the digging piece is slower, and the rotation speed of the earth-moving piece is faster. The digging piece is used to break the soil, and the earth-moving piece is used to dig the soil, so that the digging effect is better.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A trenching machine blade for trenching in farmland, comprising a first outer blade, a second outer blade, a center disk, a planetary gear set, a soil-moving piece and a digging piece, a groove is provided on one side of the center disk, mounting cylinders are provided on both sides of the center of the center disk, a plurality of through holes are provided in the circumference of the center disk, the center disk is connected to the soil-moving piece through the through holes, one end of the soil-moving piece extends into the groove through the through holes, a transmission cavity is provided in the first outer blade and the second outer blade, a planetary gear set is provided in the transmission cavity, the first outer blade and the second outer blade are connected to the mounting cylinder on the center disk through the planetary gear set, the second outer blade is provided on one side of the center disk where the groove is provided, and a protrusion is provided on the side of the second outer blade close to the groove of the center disk, teeth are provided on the protrusion to connect with the soil-moving piece, a plurality of mounting grooves are provided on the side of the first outer blade and the second outer blade away from the center disk, and the digging piece is fixedly connected through two mounting grooves corresponding to each other.

[0006] Furthermore, the digging piece is an arc-shaped ring structure.

[0007] Furthermore, the earth-moving piece includes a connecting column, an earth-moving plate and a bevel gear. One end of the connecting column extends through a through hole into the groove of the center line disk and is connected to the bevel gear, and the other end is connected to the earth-moving plate. The bevel gear is meshed with a protrusion with teeth on the second outer cutter disc, and the earth-moving plate can move in the center of the arc-shaped ring structure of the excavating piece.

[0008] Furthermore, the planetary gear set includes a first gear, a second gear and an internal gear. The first gear is fixedly mounted on the mounting tube of the center disk. Multiple transmission shafts are fixed on the transmission cavities in the first outer cutter disk and the second outer cutter disk. The transmission shafts are each sleeved with a second gear. An internal gear is fixedly mounted on the inner wall of the transmission cavity. The first gear is meshed with the second gear, and the second gear is meshed with the internal gear.

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

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

[0011] The present invention provides a planetary gear set for adjusting the rotation speeds of the first outer cutter disc, the second outer cutter disc and the center disc, so as to adjust the rotation speeds of the digging piece and the earth-moving piece. The rotation speed of the digging piece is slower, while the rotation speed of the earth-moving piece is faster. The digging piece is used for breaking the soil, while the earth-moving piece is used for digging the soil, so that the digging effect is better. When the cutter disc is used for digging wet soil with high viscosity, it is easier to dig it out, and the digging piece and the earth-moving piece itself can be cleaned while digging out the wet soil. The earth-moving piece can shake off the wet soil by rotating, and the digging piece cleans the wet soil by the earth-moving piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the top cross-sectional structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of the center cutter disc.

[0016] Figure 4 It is a schematic diagram of the structure of the second outer cutter disc.

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

[0018] Figure 6 Schematic diagram of the internal structure of the second outer cutter disc.

[0019] Figure 7 It is a schematic diagram of the structure of the soil-moving piece.

[0020] Among them, 1-first outer cutter disc, 2-center disc, 2.1-threaded protrusion, 3-second outer cutter disc, 4-earth-moving piece, 5-earth-digging piece, 6-first gear, 7-second gear, 7.1-transmission shaft, 8-internal gear, 9-mounting hole, 10-mounting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 7 As shown, the present invention provides a trenching machine cutter disc for trenching in farmland, comprising a first outer cutter disc 1, a second outer cutter disc 3, a center disc 2, a planetary gear set, a soil-moving piece 4 and a digging piece 5, a groove is provided on one side of the center disc 2, mounting cylinders are provided on both sides of the center of the center disc 2, a plurality of through holes are provided in the circumferential direction of the center disc 2, the center disc 2 is connected to the soil-moving piece 4 through the through holes, one end of the soil-moving piece 4 extends into the groove through the through holes, a transmission cavity is provided in the first outer cutter disc 1 and the second outer cutter disc 3, a planetary gear set is provided in the transmission cavity, the first outer cutter disc 1 and the second outer cutter disc 3 are connected to the mounting cylinder on the center disc 2 through the planetary gear set, the second outer cutter disc 3 is provided on one side of the center disc 2 where the groove is provided, and the second outer cutter disc 3 is close to the groove. A protrusion is provided on one side of the groove of the center disk 2, and the protrusion is provided with teeth connected to the earth-moving piece 4. A plurality of mounting grooves 10 are provided on the side of the first outer cutter disc 1 and the second outer cutter disc 3 away from the center disk 2, and are fixedly connected to the digging piece 5 through two corresponding mounting grooves 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 center disk 2, and to adjust the rotation speed of the digging piece 5 and the earth-moving piece 4. The rotation speed of the digging piece 5 is slower, and the rotation speed of the earth-moving piece 4 is faster, so that the digging effect is better, and when the cutter disc is used to dig wet soil with high viscosity, it is easier to dig it out, and the digging piece 5 and the earth-moving piece 4 itself can be cleaned while digging out the wet soil. The earth-moving piece 4 can shake off the wet soil by rotating, and the digging piece 5 cleans the wet soil through the earth-moving piece 4.

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

[0024] In this embodiment, the earth-moving piece 4 includes a connecting column, an earth-moving plate and a bevel gear. One end of the connecting column extends through a through hole into the groove of the center line disk 2 and is connected to the bevel gear, and the other end is connected to the earth-moving plate. The bevel gear and the protrusion with teeth on the second outer cutter disc 3 are meshed with each other, thereby realizing the rotation of the earth-moving piece 4 itself, and the earth-moving plate can move in the center of the arc-shaped ring structure of the excavating piece 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 tube of the center disk 2. A plurality of transmission shafts 7.1 are fixed on the transmission chambers in the first outer cutter disk 1 and the second outer cutter disk 3. The second gear 7 is sleeved on the transmission shaft 7.1. An internal gear 8 is fixedly arranged on the inner wall of the transmission chamber. The first gear 6 and the second gear 7 are meshed with each other, and the second gear 7 and the internal gear 8 are meshed with each other. 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 rotation speed. The second gear 7 has a different diameter from the internal gear 8, so the rotation speed of the internal gear is slower when rotating. The internal gear 8 is fixed on the second outer cutter disk 3 and the first outer cutter disk 1. Therefore, when the first gear 6 rotates, the rotation speed of the center disk 2, the first outer cutter disk 1 and the second outer cutter disk 3 is different. The rotation speed of the center disk 2 is slower, and the rotation speed of the first outer cutter disk 1 and the second outer cutter disk 3 is 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 tube on the center disc 2.

[0027] Working principle: when in use, the mounting tube of the center disk 2 is fixedly connected to the motor of the trencher, and the motor drives the center disk 2 to rotate. When the center disk 2 rotates, it drives the mounting tube and the first gear 6 fixedly arranged on the mounting tube to rotate, and 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 number of teeth of the second gear 7 is small, the rotation speed of the first gear 6 and the second gear 7 is different, and the rotation speed of the second gear 7 is slower. At the same time, the diameter of the second gear 7 is different from that of the inner gear 8, which makes the rotation speed of the inner gear 8 slower, thereby realizing the adjustment of the rotation speed of the first outer cutter disc 1 and the second outer cutter disc 3, realizing the different rotation speeds of the center disk 2, the first outer cutter disc 1 and the second outer cutter disc 3, and the first outer cutter disc 1 and the second outer cutter disc 3 have the same rotation speed, thereby realizing the rapid excavation and excavation of the soil by the soil excavating piece 4 and the soil excavating piece 5;

[0028] In addition, when the second outer cutter disc 3 rotates slowly, due to the relatively fast rotation speed of the center disc 2, the bevel gear end of the earth-moving piece 4 and the protrusion with teeth on the second outer cutter disc 3 can rotate with each other, thereby realizing the self-rotation of the earth-moving piece 4, so that the earth-moving effect of the earth-moving piece 4 is better, and when the cutter disc is used to dig wet soil with high viscosity, it is easier to dig it out, and while digging out the wet soil, the digging piece 5 and the earth-moving piece 4 itself can also be cleaned, and the earth-moving piece 4 can shake off the wet soil by rotating, and the digging piece 5 cleans the wet soil through the earth-moving piece 4.

[0029] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A trenching machine cutter disc for trenching in farmland, characterized in that: The invention comprises a first outer cutter disc (1), a second outer cutter disc (3), a center disc (2), a planetary gear set, a soil-moving piece (4) and an earth-digging piece (5), wherein a groove is arranged on one side of the center disc (2), mounting tubes are arranged on both sides of the center of the center disc (2), a plurality of through holes are arranged in the circumferential direction of the center disc (2), the center disc (2) is connected to the soil-moving piece (4) through the through holes, one end of the soil-moving piece (4) extends into the groove through the through holes, the first outer cutter disc (1) and the second outer cutter disc (3) are both provided with transmission cavities, and the transmission cavities are both provided with planetary gear sets. The first outer cutter disc (1) and the second outer cutter disc (3) are connected to the mounting tube on the center disc (2) via a planetary gear set; the second outer cutter disc (3) is arranged on a side of the center disc (2) where a groove is arranged; and a protrusion is arranged on a side of the second outer cutter disc (3) close to the groove of the center disc (2); teeth are arranged on the protrusion to connect with the earth-moving member (4); a plurality of mounting grooves (10) are arranged on a side of the first outer cutter disc (1) and the second outer cutter disc (3) away from the center disc (2); and the earth-moving member (5) is fixedly connected via two mounting grooves (10) corresponding to each other.

2. A trenching machine cutter disc for trenching in farmland according to claim 1, characterized in that: The digging piece (5) is an arc-shaped ring structure.

3. A trenching machine cutter disc for trenching in farmland according to claim 1, characterized in that: The earth-moving member (4) comprises a connecting column, an earth-moving plate and a bevel gear. One end of the connecting column extends through a through hole into a groove of the centerline disc (2) to be connected to the bevel gear, and the other end is connected to the earth-moving plate. The bevel gear and a protrusion with teeth on the second outer cutter disc (3) are meshed with each other. The earth-moving plate can move in the center of the arc-shaped ring structure of the earth-moving member (5).

4. A trenching machine cutter disc for trenching in farmland according to claim 1, characterized in that: The planetary gear set comprises a first gear (6), a second gear (7) and an internal gear (8); the first gear (6) is fixedly sleeved on a mounting tube of a center disk (2); a plurality of transmission shafts (7.1) are fixedly mounted on transmission cavities in the first outer cutter disk (1) and the second outer cutter disk (3); the second gear (7) is sleeved on the transmission shafts (7.1); an internal gear (8) is fixedly mounted on an inner wall of the transmission cavity; the first gear (6) and the second gear (7) are meshed with each other; and the second gear (7) and the internal gear (8) are meshed with each other.

5. The trenching machine cutter disc for trenching in farmland 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 center disc (2).

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