A harvester digging and conveying device with adjustable working width

Abstract

A harvester digging and conveying device with adjustable working width includes two opposing frame side plates, a conveying device between the two frame side plates, a digging blade assembly at the front of the starting side of the conveying device, a front crossbeam above the starting side of the conveying device, and disc cutters on the inner sides of the two frame side plates. The disc cutters are connected to the bottom end of spring suspensions, and the top ends of the two spring suspensions are connected to the front crossbeam via adjustable clamping assemblies. The adjustable clamping assemblies can be set to a fixed or movable state on the front crossbeam to adjust the installation position of the disc cutters relative to the front crossbeam. This not only provides extra space on the outer side of the two disc cutters but also allows the installation position of the disc cutters to be moved outward, making installation more convenient and adjusting the working width to effectively ensure the smooth digging and conveying operation of the harvester.

Description

Technical Field

[0001] This utility model relates to the field of harvesting machinery technology, and in particular to a harvester digging and conveying device with adjustable working width. Background Technology

[0002] Harvesters are widely used in mechanized agricultural operations. Existing harvesters, during digging and harvesting, first use a front-end compactor wheel to flatten the ridges and break up clods. Then, the digging blades excavate the crop from the soil, and a conveyor system transports the crop to a hopper for final storage. In addition to the digging blades, disc cutters on either side of the digging blades cut weeds, and a weed-cleaning wheel cleans and collects the cut weeds to prevent them from being transported along with the crop. Therefore, the disc cutters and weed-cleaning wheels need to be properly arranged on the side of the harvester's conveyor system closest to the compactor wheel to ensure effective coordination. Currently, the weed-cleaning wheels are generally placed outside the disc cutters; that is, two disc cutters are first on either side of the compactor wheel, and then two weed-cleaning wheels are diagonally behind and to the outside. This restricts the installation position of the disc cutters and makes it difficult to adjust their position, affecting the harvester's digging and conveying operations. Utility Model Content

[0003] The purpose of this invention is to provide a harvester digging and conveying device with adjustable working width, which can conveniently adjust the installation position of the disc cutter and adjust the working width.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a harvester digging and conveying device with adjustable working width, including two oppositely arranged frame side plates, a conveying device between the two frame side plates, a digging blade assembly in front of the starting side of the conveying device, and a front crossbeam above the starting side of the conveying device. The digging blade assembly includes two disc cutters, which are connected to the bottom end of the spring suspension. The top ends of the two spring suspensions are respectively connected to the front crossbeam through adjustable clamping assemblies. The adjustable clamping assemblies can be set to a fixed state or a movable state on the front crossbeam to adjust the installation position of the disc cutters relative to the front crossbeam.

[0005] Preferably, the adjustable clamping assembly includes a bottom side clamping plate, a vertical clamping plate, a vertical screw, and a top side screw. The bottom side clamping plate is connected to the top of the spring suspension. The top side screw and the bottom side clamping plate cooperate to clamp the upper and lower sides of the front crossbeam. The vertical screw and the vertical clamping plate cooperate to clamp the front and rear sides of the front crossbeam.

[0006] Preferably, the length direction of the front crossbeam is perpendicular to the forward direction of the harvester.

[0007] Preferably, the front crossbeam is a rectangular steel pipe, and the two ends of the front crossbeam are connected to the two side plates of the frame respectively.

[0008] Preferably, the bottom end of the vertical plate is connected to the upper surface of the bottom side plate, one of the vertical screw and the top side screw passes through the other and is fixed by a threaded connection, the bottom end of the vertical screw passes through the bottom side plate and is fixed by a threaded connection, and the end of the top side screw away from the vertical screw passes through the top end of the vertical plate and is fixed by a threaded connection.

[0009] Preferably, one end of the top screw is provided with a spherical part, and a through hole is provided on the spherical part for the vertical screw to pass through.

[0010] Preferably, the top of the vertical plate is provided with a locking block, which is pressed on the top of the front crossbeam and cooperates with the vertical plate to form an L-shaped structure.

[0011] Preferably, the top of the vertical clamping plate is provided with two clamping blocks, which are symmetrically distributed on both sides of the top screw.

[0012] Preferably, the conveying device includes a transmission chain assembly installed on the inner side of two frame side plates respectively, and multiple conveying rods are connected between the transmission chain assemblies on both sides. There are gaps between adjacent conveying rods that can support crops and allow soil to fall off.

[0013] Based on the above technical solution, the beneficial effects of this utility model are:

[0014] This invention connects the front crossbeam and spring suspension via an adjustable clamping assembly, and compared to existing technologies, it eliminates the weed-cleaning wheel. This not only provides extra space on the outer sides of the two disc cutters, but also allows for adjustment of the disc cutter's installation position relative to the front crossbeam by switching the adjustable clamping assembly between a fixed and movable state. This allows the disc cutter's installation position to be moved outwards, no longer confined to the narrow space between the weed-cleaning wheel and the conveying device. This not only makes installation more convenient but also allows for adjustment of the working width, effectively ensuring smooth digging and conveying operations of the harvester. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 for Figure 1 A schematic diagram from a side-rear view;

[0018] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0019] Figure 5 This is a top view of the present invention;

[0020] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0021] The markings in the diagram are: 1. Frame side plate, 2. Conveying device, 3. Pressing wheel assembly, 4. Digging blade assembly, 5. Front crossbeam, 6. Disc cutter, 7. Spring suspension, 8. Bottom side clamping plate, 9. Vertical clamping plate, 10. Clamping block, 11. Vertical screw, 12. Top side screw. Detailed Implementation

[0022] Referring to the attached diagram, the specific implementation method is as follows:

[0023] like Figure 1 , 3 As shown in Figure 5, a harvester digging and conveying device with adjustable working width includes two opposing frame side plates 1, a conveying device 2 between the two frame side plates 1, a digging blade assembly 4 in front of the starting side of the conveying device 2, and a front crossbeam 5 above the starting side of the conveying device 2. The digging blade assembly 4 includes two disc cutters 6, which are connected to the bottom end of a spring suspension 7. The top ends of the two spring suspensions are respectively connected to the front crossbeam 5 through adjustable clamping assemblies. The adjustable clamping assemblies can be set to a fixed state or a movable state on the front crossbeam 5 to adjust the installation position of the disc cutters 6 relative to the front crossbeam 5.

[0024] A compaction wheel assembly 3 can also be optionally installed at the front of the starting side of the conveying device 2. Two disc cutters 6 are located on both sides of the compaction wheel assembly 3 along the axial direction. The compaction wheel assembly 3 can flatten the ridges and crush the soil clods. During operation, the crops are dug out of the soil by the digging blade assembly 4, and then transported to the rear by the conveying device 2. The conveying device 2 includes drive chain assemblies installed on the inner sides of the two frame side plates 1. Multiple conveying rods are connected between the drive chain assemblies on both sides. There are gaps between adjacent conveying rods that can support the crops and allow the soil to fall off. Therefore, the crops can be transported to the hopper or other devices for storage, ensuring that the crops are separated from the soil and that no excessive soil is carried out. In addition to the digging blades, weeds are also cut by the compaction wheel and the disc cutters 6 on both sides of the digging blades during digging, preventing weeds and crops from being transported away by the conveying device together.

[0025] like Figure 1 , 3As shown in Figure 5, in order to facilitate the adjustment of the installation position of the disc cutter 6 relative to the front crossbeam 5, the top ends of the two spring suspensions 7 in this embodiment are connected to the front crossbeam 5 through adjustable clamping assemblies. By adjusting the adjustable clamping assemblies, the spring suspensions 7 can be moved or fixed along the front crossbeam 5. Since the length direction of the front crossbeam 5 is perpendicular to the forward direction of the harvester, the position adjustment of the disc cutter 6 can be achieved.

[0026] like Figure 2 , 4 As shown in Figure 6, the adjustable clamping assembly includes a bottom side clamping plate 8, a vertical clamping plate 9, a vertical screw 11, and a top side screw 12. The bottom side clamping plate 8 is connected to the top of the spring suspension 7. The front crossbeam 5 is a rectangular steel tube. The top side screw 12 and the bottom side clamping plate 8 cooperate to clamp the upper and lower sides of the front crossbeam 5, and the vertical screw 11 and the vertical clamping plate 9 cooperate to clamp the front and rear sides of the front crossbeam 5. Specifically, the bottom end of the vertical clamping plate 9 is connected to the upper surface of the bottom side clamping plate 8. One end of the top side screw 12 has a spherical part. The vertical screw 11 passes through the spherical part of the top side screw 12, and the nut on the top side of the vertical screw 11 is pressed into the spherical part. The bottom end of the vertical screw 11 passes through the bottom side clamping plate 8 and is fixed by the nut. The end of the top side screw 12 away from the vertical screw 11 passes through the top of the vertical clamping plate 9 and is fixed by the nut.

[0027] like Figure 2 , 4 As shown in Figure 6, the top of the vertical clamping plate 9 is provided with two clamping blocks 10. The two clamping blocks 10 are symmetrically distributed on both sides of the top side screw 12. The clamping blocks 10 are pressed on the top of the front crossbeam 5 and cooperate with the vertical clamping plate 9 to form an L-shaped structure. Therefore, when the nut is tightened, the two clamping blocks can be clamped together with the top side screw 12 onto the surface of the front crossbeam 5. When the nut is loosened, the vertical screw 11 and the top side screw 12 can be separated from the surface of the front crossbeam 5. At this time, the overall structure of the bottom clamping plate 8, the vertical clamping plate 9, the vertical screw 11, the top side screw 12, the spring suspension 7 and the disc cutter 6 can move along the front crossbeam 5 until the disc cutter 6 moves to the appropriate installation position. Then, tightening the nut again will achieve fixation.

[0028] Compared with conventional digging and conveying devices, this embodiment provides extra space outside the two disc cutters by removing the cleaning wheel. Furthermore, by switching the adjustable clamping assembly between a fixed state and a movable state, the installation position of the disc cutters relative to the front crossbeam can be adjusted, allowing the disc cutters to be moved outward. The installation position of the disc cutters is no longer limited to the narrow space between the cleaning wheel and the conveying device, making installation more convenient and allowing for adjustment of the working width, effectively ensuring the smooth digging and conveying operations of the harvester.

Claims

1. A harvesting machine digest-conveying device with adjustable working width, characterized in that: The machine includes two opposing frame side plates (1), a conveying device (2) is provided between the two frame side plates (1), a digging blade assembly (4) is provided in front of the starting side of the conveying device (2), and a front crossbeam (5) is provided above the starting side of the conveying device (2). The digging blade assembly (4) includes two disc cutters (6), the disc cutters (6) are connected to the bottom end of the spring suspension (7), and the top ends of the two spring suspensions are respectively connected to the front crossbeam (5) through adjustable clamping assemblies. The adjustable clamping assemblies can be set to a fixed state or a movable state on the front crossbeam (5) so as to adjust the installation position of the disc cutters (6) relative to the front crossbeam (5).

2. A harvester digging and conveying device with adjustable working width according to claim 1, characterized in that: The adjustable clamping assembly includes a bottom side clamping plate (8), a vertical clamping plate (9), a vertical screw (11), and a top side screw (12). The bottom side clamping plate (8) is connected to the top of the spring suspension (7). The top side screw (12) and the bottom side clamping plate (8) cooperate to clamp the upper and lower sides of the front crossbeam (5). The vertical screw (11) and the vertical clamping plate (9) cooperate to clamp the front and rear sides of the front crossbeam (5).

3. A harvester digging and conveying device with adjustable working width according to claim 2, characterized in that: The length direction of the front crossbeam (5) is perpendicular to the forward direction of the harvester.

4. A harvester digging and conveying device with adjustable working width according to claim 3, characterized in that: The front crossbeam (5) is a rectangular steel pipe, and the two ends of the front crossbeam (5) are connected to the two frame side plates (1) respectively.

5. A harvester digging and conveying device with adjustable working width according to claim 2, characterized in that: The bottom end of the vertical plate (9) is connected to the upper surface of the bottom side plate (8). One of the vertical screw (11) and the top side screw (12) passes through the other and is fixed by a threaded connection. The bottom end of the vertical screw (11) passes through the bottom side plate (8) and is fixed by a threaded connection. The end of the top side screw (12) away from the vertical screw (11) passes through the top end of the vertical plate (9) and is fixed by a threaded connection.

6. A harvester digging and conveying device with adjustable working width according to claim 5, characterized in that: One end of the top screw (12) is provided with a spherical part, and a through hole is provided on the spherical part for the vertical screw (11) to pass through.

7. A harvester digging and conveying device with adjustable working width according to claim 5, characterized in that: The top of the vertical plate (9) is provided with a locking block (10), which is pressed on the top of the front crossbeam (5) and cooperates with the vertical plate (9) to form an L-shaped structure.

8. A harvester digging and conveying device with adjustable working width according to claim 7, characterized in that: The top of the vertical plate (9) is provided with two locking blocks (10), which are symmetrically distributed on both sides of the top screw (12).

9. A harvester digging and conveying device with adjustable working width according to claim 1, characterized in that: The conveying device (2) includes a transmission chain assembly installed on the inner side of two frame side plates (1), and multiple conveying rods are connected between the transmission chain assemblies on both sides. There is a gap between adjacent conveying rods that can support crops and cause soil to fall off.

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