Ditching machine

Abstract

The utility model discloses a furrowing machine which comprises a rack, a gearbox driven by a power device is arranged on the rack, a left output shaft and a right output shaft which are used for transmitting power outwards are arranged in the gearbox, the left output shaft and the right output shaft are arranged in a front-back staggered mode, and a furrowing device capable of scattering outwards-thrown soil is connected outside the two output shafts. A furrowing device is arranged on the machine frame, a coulter is installed on the machine frame and located on the rear side of the furrowing device, the bottom of the coulter is bent towards the gearbox, the end face, facing the gearbox, of the coulter comprises a bent left plough face and a bent right plough face, and the distance between the left plough face and the furrowing device is the same as the distance between the right plough face and the furrowing device. The furrow opener has the advantages that the furrow opening effect can be ensured, the furrow opening quality is good, the applicability is high, the service life of the coulter is prolonged, and the like.

Description

Technical Field

[0001] The utility model relates to agricultural equipment, in particular to a trenching machine. Background Art

[0002] In agricultural production, it is necessary to dig trenches on farmland before planting. After digging trenches, the farmland can be fertilized, drained, and irrigated. Commonly used trenchers are double-disc, single-disc, or chain trenchers. Double-disc trenchers include rotatable trenching discs located on the left and right sides. Multiple trenching knives are installed on the trenching discs. The rotation of the trenching discs drives the trenching knives to dig up the soil on the ground and lift it outward. A plowshare is provided behind the trenching disc. The plowshare will scrape the soil that has been loosened by the trenching knives but not lifted to both sides of the plowshare, thereby ensuring the shape of the ditch after trenching. In the prior art, a double-disc trencher with two discs staggered front and back is used. During the use of this type of trenching, the distance between the plowshare and the two discs is unequal, resulting in different soil accumulation, which affects the trenching effect. At the same time, it causes uneven force on the surface of the plowshare, which affects the service life of the plowshare. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a furrowing machine which can ensure the furrowing effect and the service life of the coulter.

[0004] In order to solve the above technical problems, the utility model includes a frame, and its structural characteristics are: a gearbox driven by a power device is provided on the frame, and a left output shaft and a right output shaft for transmitting power outward are provided in the gearbox, and the left output shaft and the right output shaft are arranged front and back alternately, and the two output shafts are externally connected with a ditching device that can break up the thrown soil, and a plow is installed on the frame, and the plow is located on the rear side of the ditching device, and the bottom of the plow is bent toward the gearbox, and the end face of the plow facing the gearbox includes a curved left plow surface and a right plow surface, and the distances between the left plow surface and the right plow surface and the ditching device are the same.

[0005] After adopting the above structure, the gearbox is driven by the driving device, and power is output through the left output shaft and the right output shaft. The left output shaft and the right output shaft respectively drive the left and right ditching devices, and the ditching devices rotate to scatter the land and then throw it to the left and right sides of the ditching machine. Since the left output shaft and the right output shaft are staggered front and back, there is a distance between the left and right ditching devices in the front and back directions. A plow is installed behind the gearbox, and the plow is bent toward the gearbox. At the same time, the plow is bent to push the unthrown soil to both sides of the plow. The side of the plow facing the gearbox includes a left plow surface and a right plow surface, both of which are curved surfaces, and the distance between the left plow surface and the right plow surface and the ditching device is equal. Therefore, the soil that needs to be scraped and pushed when the left plow surface and the right plow surface plow out grooves is equal, so that soil accumulation on one side is avoided to cause poor ditching quality, thereby ensuring the quality of ditching, and at the same time, uneven force on the plow is avoided to affect the life of the plow, thereby ensuring the service life of the plow.

[0006] A scraper is installed at the lower end of the plow. There is an angle between the upper surface of the scraper and the ground. The scraper scrapes and pushes the soil on the bottom surface of the groove to form the groove, thereby ensuring the quality of the formed groove.

[0007] The gearbox includes a driving shaft driven by a driving device, and a first driving gear and a second driving gear are mounted on the driving shaft. The first driving gear is located at the front side of the second driving gear, and the first driving gear is meshed with a first output gear. A left output shaft extending to the left is mounted inside the first output gear, and a second output gear is meshed with a second output gear. A right output shaft extending to the right is mounted inside the second output gear. The driving shaft is driven to rotate by the driving device, thereby driving the first driving gear to rotate, thereby driving the first output gear meshed with the first driving gear to rotate, thereby driving the left output shaft to rotate, and then driving the left ditching device mounted on the left output shaft to dig and ditch the soil on the left side. The second driving gear is driven to rotate by the driving shaft, and then meshes and transmits to the second output gear, thereby driving the right output shaft to rotate, and then the ditching device mounted on the right output shaft digs and ditches the soil on the right side. The method of mounting two gears on the driving shaft can better drive the ditching devices on the left and the right, and increase reliability. At the same time, there is a distance between the left output shaft and the right output shaft, so that the ditching devices on the left and the right can be staggered front and back to dig the soil better.

[0008] The heights of the left output shaft and the right output shaft gradually decrease from the inside to the outside. The left output shaft and the right output shaft are tilted, and the ditching device is tilted. The distance between the lower ends of the left and right ditching devices is smaller than the distance between the upper ends of the left and right ditching devices. There is also an inclination angle between the ditching device and the ground. After the inclination angle exists, compared with the vertical ditching device, the inclined ditching device increases the shear force and can better cut and break up the land, thereby increasing the ditching effect. At the same time, the centrifugal force is used to throw out the soil during rotation, reducing the burden on the pear knife.

[0009] The furrowing device includes furrowing discs respectively installed on the left output shaft and the right output shaft, and a plurality of furrowing knives capable of breaking up the soil and throwing the soil outward are installed on the furrowing discs. The furrowing knives are installed on the furrowing discs. The rotation of the furrowing discs drives the furrowing knives to rotate, thereby breaking up the soil and throwing it out, which facilitates the furrowing process of the subsequent plows.

[0010] The trenching knives are arranged around the trenching disc, and the multiple trenching knives are respectively installed on the left and right end surfaces of the trenching disc. After rotation, the trenching knives cut the ground in sequence, thereby breaking up the soil.

[0011] The extended end of the trenching knife is bent toward the gearbox, and the bent trenching knife performs a digging action when rotating. As the trenching disc rotates, the soil can be brought to both ends, thereby ensuring.

[0012] A plurality of supporting ribs are arranged on the end surface of the plow away from the gearbox.

[0013] The supporting ribs are arranged along the arc surface of the plow from top to bottom.

[0014] After adopting the above structure, multiple supporting ribs support the arc shape of the furrowing knife along the arc surface, avoiding the impact of soil on the furrowing knife during plowing, causing the plowing knife to deform, reducing the plowing effect of the plowing knife, increasing the service life, and ensuring the plowing effect.

[0015] In summary, the utility model has the advantages of ensuring the furrowing effect, good furrowing quality, strong applicability, and increasing the service life of the plow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 A three-dimensional structural diagram of a plowshare (the scraper is not shown);

[0018] Figure 3 It is a schematic diagram of the structure of the plow blade from a top view (the scraper is not shown);

[0019] Figure 4 For the plow blade along Figure 1 Schematic diagram of the structure in the middle A direction (scraper not shown);

[0020] Figure 5 Schematic diagram of the internal structure of the gearbox. DETAILED DESCRIPTION

[0021] like Figure 1-5As shown, a trenching machine includes a frame 1, a gearbox 2 driven by a power device is arranged on the frame 1, and output ends are arranged on the left and right sides of the gearbox 2, and the output ends include a left output shaft 21 and a right output shaft 22. For the convenience of description, it is assumed that Figure 1 The left side is the back, the right side is the front, Figure 1 The left is inward from the vertical paper plane, and the right is outward from the vertical paper plane. The left output shaft 21 and the right output shaft 22 are provided with a ditching device 4 that can be connected to break up the thrown soil. The left output shaft 21 and the right output shaft 22 are arranged front and back, so there is a gap between the left output shaft 21 and the right output shaft 22 in the front and back direction. Therefore, there is also a gap between the ditching device 4 on the left and the ditching device 4 on the right. A plow 5 is provided on the rear side of the frame 1, and the plow 5 is located on the rear side of the ditching device 4, and the bottom of the plow 5 is lower than the bottom of the ditching device 4. The plow 5 is arc-shaped, and the bottom of the plow 5 is bent toward the gearbox 2, and a scraper 53 is installed at the bottom of the plow 5. The end face of the plow 5 close to the gearbox 2 includes two left and right end faces, and the curvature of the left and right end faces is different, thereby ensuring that the distances between the left and right end faces and the left and right ditching devices 4 are equal. The scraper 53 scrapes up the soil on the arc surface of the coulter 5. As the furrowing machine moves, the soil that has not been thrown to both sides is scraped up and pushed to both sides, completing the furrowing process of the land.

[0022] like Figure 1-4 As shown, a plow 5 is provided at the rear side of the frame 1, the bottom end of the plow 5 is bent toward the gearbox 2, a scraper 53 is installed at the bottom of the plow 5, the blade of the scraper 53 is facing the ground, and the scraper 53 contacts the ground to determine the depth of the lower bottom surface of the ditch. At the same time, the plow 5 plows the land plowed by the ditching blade 42 into a groove, and the crushed soil is pushed to both sides of the ditch by the plow 5, thereby ensuring the stability of the ditching. The left and right output shafts are arranged front and back. In order to ensure that the land is pushed out to both sides evenly when the plow 5 passes, the end of the plow 5 close to the ditching disk 41 includes a left plow surface 51 and a right plow surface 52, and the curvature of the left plow surface 51 and the right plow surface 52 are different, so as to adapt to the ditching disks 41 at different positions. In this embodiment, the left power output shaft is located in front of the right power output shaft, so the curvature of the left plow face 51 on the left side of the plow blade 5 is smaller than the curvature of the right plow face 52, thereby ensuring that the distance between the left plow face 51 and the left furrowing device 4 is equal to the distance between the right plow face 52 and the right furrowing device 4, thereby ensuring that the grooves opened on both sides are consistent, while avoiding soil accumulation on one side of both sides causing uneven grooves on both sides, ensuring the quality of furrowing, while avoiding soil accumulation causing uneven force on both sides of the plow blade 5, avoiding reducing the service life of the plow blade 5. A plurality of supporting ribs are provided on the rear side of the plow blade 5, and a plurality of supporting ribs 54 support the arc shape of the furrowing blade 42 along the arc surface, avoiding the impact of soil on the plow blade 5 when plowing the land causing the plow blade 5 to deform, ensuring the furrowing quality and the service life of the plow blade 5.

[0023] like Figure 1 ,5 As shown, the gearbox 2 includes a housing, the housing includes a drive shaft 23, and the drive shaft 23 is provided with a first drive gear 231 and a second drive gear 232. In this embodiment, the first drive gear 231 is located at the front side, and the second drive gear 232 is located at the rear side. Both the first drive gear 231 and the second drive gear 232 are bevel gears. The first output gear 211 is meshed with the left side of the first drive gear 231, and the left output shaft 21 is arranged inside the first output gear 211. The first output gear 211 is tilted. Since the first drive gear 231 is a bevel gear, the first output gear 211 can still mesh with the first drive gear 231 after being tilted. The second output gear 221 is meshed with the right side of the second drive gear 232, and the right output shaft 22 is arranged inside the second drive gear 232. If the second output gear 221 is tilted, the right output shaft 22 is also tilted. The left output shaft 21 is provided with a left ditching device 4, and the right output shaft 22 is provided with a right ditching device 4.

[0024] like Figure 1 As shown, the trenching device 4 includes a trenching disc 41 installed at the output end and a trenching knife 42 arranged around the trenching disc 41. The left trenching disc 41 is mounted on the left output shaft 21, and a plurality of trenching knives 42 are staggeredly mounted on the left and right sides of the left trenching disc 41. The right trenching disc 41 is mounted on the right output shaft 22, and a plurality of trenching knives 42 are also staggeredly mounted on the left and right sides of the right trenching disc 41. The left output shaft 21 and the right output shaft 22 are both tilted downward from the inside to the outside, so that the distance between the lower ends of the left and right trenching discs 41 is smaller than the distance between the upper ends of the two trenching discs 41. There is also an inclination angle between the ditching device 4 and the ground. After the inclination angle exists, compared with the ditching device 4 in the vertical direction, the ditching device 4 set obliquely increases the shear force and can better cut and break up the land, thereby increasing the ditching effect. At the same time, the soil is thrown out by centrifugal force during rotation, reducing the burden of the pear knife. The ditching knife 42 cuts the ground at an angle. Compared with the ditching cutting marks set vertically, the inclined cutting makes cutting more labor-saving, thereby improving the ditching efficiency. As the drive shaft 23 is driven to rotate by the power device, the ditching knife 42 rotates along the axis. The ditching knife 42 bends toward the direction of the gearbox 2, and the cross-sectional surface of the extended end of the opening knife is arc-shaped, and the shape of the side is also arc-shaped. When working, the ditching knife 42 rotates, and the extended end of the ditching knife 42 cuts the ground, making a state of planing the ground, breaking up the land and throwing it to both sides.

Claims

1. A trenching machine, comprising a frame (1), characterized in that: A gearbox (2) driven by a power device is provided on the frame (1), and a left output shaft (21) and a right output shaft (22) for transmitting power outward are provided inside the gearbox (2), and the left output shaft (21) and the right output shaft (22) are arranged in a staggered manner in front and back, and a furrowing device (4) capable of breaking up and throwing out mud is externally connected to the two output shafts, and a plow (5) is installed on the frame (1), and the plow (5) is located at the rear side of the furrowing device (4), and the bottom of the plow (5) is bent toward the gearbox (2), and the end surface of the plow (5) facing the gearbox (2) includes a curved left plow surface (51) and a right plow surface (52), and the distances between the left plow surface (51) and the right plow surface (52) and the furrowing device (4) are the same.

2. The trenching machine according to claim 1, characterized in that: A scraper (53) is mounted at the lower end of the plow (5), and an angle exists between the upper surface of the scraper (53) and the ground.

3. The trenching machine according to claim 1, characterized in that: The gearbox (2) comprises a drive shaft (23) driven by a drive device, a first drive gear (231) and a second drive gear (232) being sleeved on the drive shaft (23), the first drive gear (231) being located in front of the second drive gear (232), the first drive gear (231) being meshed with a first output gear (211), a left output shaft (21) extending to the left being sleeved inside the first output gear (211), the second drive gear (232) being meshed with a second output gear (221), a right output shaft (222) extending to the right being sleeved inside the second output gear (221).

4. The trenching machine according to claim 3, characterized in that: The heights of the left output shaft (21) and the right output shaft (22) gradually decrease from the inside to the outside.

5. The trenching machine according to claim 1, characterized in that: The furrowing device (4) comprises furrowing discs (41) respectively mounted on the left output shaft (21) and the right output shaft (22), and the furrowing discs (41) are mounted with a plurality of furrowing knives (42) capable of breaking up the soil and throwing the soil outward.

6. The trenching machine according to claim 5, characterized in that: The trenching knives (42) are arranged around the trenching disc (41), and the plurality of trenching knives (42) are respectively mounted on the left and right end surfaces of the trenching disc (41).

7. The trenching machine according to claim 5, characterized in that: The extended end of the trenching knife (42) is bent toward the gearbox (2).

8. The trenching machine according to claim 1, characterized in that: A plurality of supporting ribs (54) are provided on the end surface of the plowshare (5) away from the gearbox (2).

9. The trenching machine according to claim 8, characterized in that: The support ribs (54) are arranged from top to bottom along the arc-shaped surface of the plowshare (5).

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