Disc harrow convenient to adjust

Abstract

The utility model is applicable to the technical field of agricultural equipment, and provides a disc harrow convenient to adjust, which comprises a first harrow group unit and a second harrow group unit which are rotationally connected through a harrow group connecting mechanism, and a harrow group angle adjusting mechanism for adjusting the angle between the first harrow group unit and the second harrow group unit is also arranged between the first harrow group unit and the second harrow group unit. The harrow group connecting mechanism and the harrow group angle adjusting mechanism are each provided with a cushioning spring used for damping, a driving connecting mechanism is arranged on one side of the first harrow group unit, the driving connecting mechanism is provided with a driving shock absorber used for damping, and abrasion of the connecting position can be reduced through the cushioning springs and the driving shock absorber; meanwhile, the operation effect under a bumpy site can be guaranteed, meanwhile, the first harrow group unit and the second harrow group unit are each provided with a mud scraping plate capable of rotating, and the operation effect cannot be excessively affected while it is guaranteed that the surfaces of harrow pieces are clean.

Description

Technical Field

[0001] The utility model is applicable to the technical field of agricultural machinery and equipment and provides a disc harrow which is easy to adjust. Background Art

[0002] A disc harrow is a tillage implement with a harrow group consisting of multiple concave discs fixed on a horizontal axis as a working part. It is mainly used to loosen the soil after plowing to achieve the agronomic requirements of land preparation before sowing. It is also used for weeding or shallow tillage and stubble removal on the stubble land after harvest. Heavy disc harrows can also be used for arable land operations. It is a common agricultural machinery with multiple uses. It is usually powered by traction devices such as tractors. Disc harrows have various forms of structures. Among them, the offset disc harrow is a harrow group that is set at a certain angle front and back. In order to facilitate adjustment, the two harrow groups are generally directly connected with a rotating shaft. However, during the operation of the disc harrow, since the working arable land environment is mostly in an uneven state, the connection between the two harrow groups is often due to this reciprocating bumps, causing the rotating shaft to loosen or even fall off. At the same time, the connection between the harrow group and the traction equipment has the same problem. Utility Model Content

[0003] To this end, the utility model provides a disc harrow that is easy to adjust. A shock-absorbing spring for shock absorption is arranged at the connection between the first harrow group unit and the second harrow group unit to reduce the wear of the two harrow group units during relative movement. A drive shock absorber that also plays a shock-absorbing role is arranged on the drive connection mechanism to buffer the relative movement between the traction device and the disc harrow.

[0004] In order to achieve the above object, the utility model provides the following technical solution: a disc harrow that is easy to adjust, comprising:

[0005] The first rake group unit comprises a first rake group bracket, the first rake group bracket is rotatably provided with a first rake group rotating shaft, a plurality of first rake blades are fixedly provided on the first rake group rotating shaft, the first rake group bracket is rotatably provided with a first scraper driving rotating shaft, a plurality of first scraper blades are fixedly provided on the first scraper driving rotating shaft, and the first scraper blades are matched one by one with the first rake blades;

[0006] The second rake group unit comprises a second rake group bracket, the second rake group bracket is rotatably provided with a second rake group rotating shaft, a plurality of second rake blades are fixedly provided on the second rake group rotating shaft, the second rake group bracket is rotatably provided with a second scraper driving rotating shaft, a plurality of second scraper blades are fixedly provided on the second scraper driving rotating shaft, and the second scraper blades are matched one by one with the second rake blades;

[0007] A rake group connection mechanism is used to connect the first rake group unit and the second rake group unit, and the first rake group unit and the second rake group unit are rotatably connected through the rake group connection mechanism

[0008] The driving connection mechanism comprises a connecting main shaft, one end of which is rotatably connected to the first rake group bracket;

[0009] The rake group angle adjustment mechanism comprises a rake group angle adjustment rod, which is rotatably connected to the first rake group bracket, a second rake group connection block is sleeved on the outer side of the rake group angle adjustment rod, and the second rake group connection block is rotatably connected to the second rake group bracket.

[0010] Further, the rake group connecting mechanism includes a first upper connecting plate, a first lower connecting plate, a second connecting plate and a connecting shaft, the first upper connecting plate and the first lower connecting plate are fixedly connected to the first rake group bracket, the second connecting plate is fixedly connected to the second rake group bracket, two ends of the connecting shaft are respectively fixedly connected to the first upper connecting plate and the first lower connecting plate, the second connecting plate is arranged between the first upper connecting plate and the first lower connecting plate and is rotatably connected to the connecting shaft, an upper damping spring and a lower damping spring are sleeved on the outer side of the connecting shaft, one end of the upper damping spring is fixedly connected to the first upper connecting plate, and the other end is fixedly connected to the second connecting plate, one end of the lower damping spring is fixedly connected to the first lower connecting plate, and the other end is fixedly connected to the second connecting plate.

[0011] Furthermore, the rake group angle adjustment rod is provided with a plurality of rake group angle positioning holes in an array along the moving direction of the second rake group connecting block, and the second rake group connecting block is rotatably provided with a rake group angle positioning shaft adapted to the rake group angle positioning holes.

[0012] Furthermore, the second rake group connecting block is fixedly connected to a connecting block rotating shaft, and the second rake group connecting block is rotatably connected to the second rake group bracket through the connecting block rotating shaft. A connecting block buffer spring is sleeved on the outer side of the connecting block rotating shaft, and one end of the connecting block buffer spring is fixedly connected to the second rake group connecting block, and the other end is fixedly connected to the second rake group bracket.

[0013] Furthermore, the drive connection mechanism also includes a drive angle adjustment rod, one end of which is rotatably connected to the first rake group bracket, a plurality of drive angle adjustment holes are arrayed on the drive angle adjustment rod, and a plurality of drive angle positioning holes matched with the drive angle adjustment holes are arrayed on the connecting spindle.

[0014] Furthermore, one end of the connecting main shaft away from the first rake group bracket is rotatably connected to a driving steering rod, and the driving steering rod is connected to at least one driving shock absorber, one end of the driving shock absorber is fixedly connected to the driving steering rod, and the other end is fixedly connected to a shock-absorbing connecting plate, and the shock-absorbing connecting plate is fixedly connected to the driving connecting rod.

[0015] Furthermore, the second rake group bracket is rotatably connected to a rake group moving mechanism, the rake group moving mechanism includes a moving mechanism bracket rotatably connected to the second rake group bracket, and the moving mechanism bracket is rotatably connected to at least two moving wheels.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In the utility model, an upper damping spring and a lower damping spring are added to the rake group connection mechanism for connecting the first rake group unit and the second rake group unit, and a connecting block damping spring is also added between the second rake group connection block and the second rake group unit, so that when the interaction force is generated due to bumps at the connection between the first rake group unit and the second rake group unit, the spring can be used to achieve buffering, thereby avoiding excessive wear at the connection position. Similarly, a driving shock absorber is added to the driving connection mechanism, and buffering can also be added at the connection between the driving connection rod and the first rake group unit to reduce the occurrence of wear;

[0018] 2. By setting a scraper at the position of the rake blade, the mud and debris remaining on the rake blade during operation can be scraped off to ensure the working effect of the rake blade. At the same time, the scraper can be driven by the manually rotatable scraper to control the scraper to move away from or close to the rake blade, which is more flexible to use. The scraper can be rotated away from the working ground when scraping is not needed to prevent affecting the working effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a disc harrow that is easy to adjust mentioned in the utility model;

[0020] Figure 2 It is a structural schematic diagram of a disc harrow that is easy to adjust in the utility model in the working state;

[0021] Figure 3 It is a structural schematic diagram of the driving connection mechanism mentioned in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the assembly of the rake group connection mechanism mentioned in the utility model with the first rake group bracket and the second rake group bracket;

[0023] Figure 5 It is a structural schematic diagram of the rake group angle adjustment mechanism mentioned in the utility model.

[0024] In the figure:

[0025] 1. First rake group unit, 11. First rake group bracket, 12. First rake group shaft, 13. First rake blade, 14. First scraper drive shaft, 15. First scraper blade, 2. Second rake group unit, 21. Second rake group bracket, 22. Second rake group shaft, 23. Second rake blade, 24. Second scraper drive shaft, 25. Second scraper blade, 3. Drive connection mechanism, 31. Connecting spindle, 32. Drive angle adjustment rod, 33. Drive steering rod, 34. Shock absorber Connecting plate, 35, driving shock absorber, 36, driving connecting rod, 4, rake group angle adjustment mechanism, 41, rake group angle adjustment rod, 42, second rake group connecting block, 43, connecting block buffer spring, 44, rake group angle positioning shaft, 5, rake group moving mechanism, 51, moving mechanism bracket, 52, moving wheel, 6, rake group connecting mechanism, 61, first upper connection, 62, first lower connecting plate, 63, second connecting plate, 64, upper buffer spring, 65, lower buffer spring. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] For example, see the attached Figure 1 ~Attached Figure 2 The utility model provides a disc harrow that is easy to adjust, comprising a first harrow group unit 1 and a second harrow group unit 2 that are rotatably connected through a harrow group connecting mechanism 6, a driving connecting mechanism 3 is connected to one side of the first harrow group unit 1, and the driving connecting mechanism 3 is used for a tractor or other equipment to tow and move the disc harrow, and the second harrow group unit 2 is rotatably connected to a harrow group moving mechanism 5, and the harrow group moving mechanism 5 comprises a moving mechanism bracket 51 that is rotatably connected to a second harrow group bracket 21, and the moving mechanism bracket 51 is rotatably connected to two moving wheels 52, and when the disc harrow needs to be transferred on flat ground, the moving wheels 52 are rotated to contact the ground, and at this time, the first harrow group unit 1 and the second harrow group unit 2 are both lifted off the ground, so that the disc harrow can be transferred under the traction of the traction device;

[0028] The first rake group unit 1 comprises a first rake group bracket 11, the first rake group bracket 11 is rotatably provided with a first rake group shaft 12, a plurality of first rake blades 13 are fixedly provided on the first rake group shaft 12, the first rake group bracket 11 is rotatably provided with a first scraper driving shaft 14, a plurality of first scraper blades 15 are fixedly provided on the first scraper driving shaft 14, the first scraper blades 15 are matched with the first rake blades 13 one by one, and the first scraper blades 15 can be driven to approach the first rake blades 13 or reverse to the top of the first rake group bracket 11 by rotating the first scraper driving shaft 14, so that the first scraper blades 15 can be driven to move closer to the first rake blades 13 or reverse to the top of the first rake group bracket 11, so that the first scraper blades 15 can be driven ... The disc harrow 13 is scraped when it needs to be cleaned, and the normal operation of the disc harrow is not affected when it does not need to be cleaned. The second harrow group unit 2 includes a second harrow group bracket 21, and the second harrow group bracket 21 is rotatably provided with a second harrow group shaft 22, and a plurality of second harrow blades 23 are fixedly provided on the second harrow group shaft 22. The second harrow group bracket 21 is rotatably provided with a second scraper driving shaft 24, and a plurality of second scraper blades 25 are fixedly provided on the second scraper driving shaft 24. The second scraper blades 25 are matched with the second harrow blades 23 one by one. This structure has the same effect as the first harrow group unit 1; as shown in the attached figure Figure 4 As shown, the first rake group unit 1 and the second rake group unit 2 are rotatably connected through a rake group connecting mechanism 6, and the rake group connecting mechanism 6 includes a first upper connecting plate 61, a first lower connecting plate 62, a second connecting plate 63 and a connecting shaft, the first upper connecting plate 61 and the first lower connecting plate 62 are fixedly connected to the first rake group bracket 11, the second connecting plate 63 is fixedly connected to the second rake group bracket 21, and both ends of the connecting shaft are fixedly connected to the first upper connecting plate 61 and the first lower connecting plate 62 respectively, the second connecting plate 63 is arranged between the first upper connecting plate 61 and the first lower connecting plate 62 and is rotatably connected to the connecting shaft, and an upper damping spring 64 and a lower damping spring 65 are sleeved on the outer side of the connecting shaft, one end of the upper damping spring 64 is fixedly connected to the first upper connecting plate 61, and the other end is fixedly connected to the second connecting plate 63, and one end of the lower damping spring 65 is fixedly connected to the first lower connecting plate 62, and the other end is fixedly connected to the second connecting plate 63; as shown in the attached Figure 5As shown, the rake group angle adjustment mechanism 4 includes a rake group angle adjustment rod 41, the rake group angle adjustment rod 41 is rotatably connected to the first rake group bracket 11, a second rake group connecting block 42 is sleeved on the outer side of the rake group angle adjustment rod 41, the second rake group connecting block 42 is rotatably connected to the second rake group bracket 21, the rake group angle adjustment rod 41 is provided with a plurality of rake group angle positioning holes in an array along the moving direction of the second rake group connecting block 42, the second rake group connecting block 42 is rotatably provided with a rake group angle positioning shaft 44 adapted to the rake group angle positioning holes, the relative angle between the first rake group bracket 11 and the second rake group bracket 21 can be adjusted by adjusting the rake group angle positioning shaft 44 and inserting it into different rake group angle positioning holes, and can be adjusted quickly and conveniently according to different operation requirements, the second rake group connecting block 42 is fixedly connected with a connecting block rotating shaft, the second rake group connecting block 42 is rotatably connected to the second rake group bracket 21 through the connecting block rotating shaft, and the connecting block A connecting block damping spring 43 is sleeved on the outer side of the connecting block shaft, one end of the connecting block damping spring 43 is fixedly connected to the second rake group connecting block 42, and the other end is fixedly connected to the second rake group bracket 21. When the first rake group unit 1 and the second rake group unit 2 pass through an uneven working environment, a relative force is generated between the first rake group bracket 11 and the second rake group bracket 21. Under the buffering action of the upper damping spring 64 and the lower damping spring 65 at the connecting shaft, the upper and lower relative forces will not cause excessive wear to the rake group connecting mechanism 6, and the upper and lower relative forces between the second rake group connecting block 42 and the second rake group bracket 21 will be buffered by the connecting block damping spring 43. Under the action of the upper damping spring 64, the lower damping spring 65 and the connecting block damping spring 43, the overall bumping of the disc harrow will also be alleviated, so that after a long period of operation, each connection position of the disc harrow is not easy to loosen and wear due to bumps;

[0029] As attached Figure 3As shown, the driving connection mechanism 3 includes a connecting spindle 31 and a driving angle adjustment rod 32. One end of the connecting spindle 31 is rotatably connected to the first rake group bracket 11. One end of the driving angle adjustment rod 32 is rotatably connected to the first rake group bracket 11. A plurality of driving angle adjustment holes are arranged in an array on the driving angle adjustment rod 32. A plurality of driving angle positioning holes adapted to the driving angle adjustment holes are arranged in an array on the connecting spindle 31. By connecting different driving angle adjustment holes to the driving angle adjustment hole combination, the connection spindle 31 and the first rake can be adjusted. The angle between the first and second group brackets 11 is adjusted. At the same time, when the disc harrow is moved, the traction force can be more uniform and the movement can be more stable by connecting the two traction points of the main shaft 31 and the driving angle adjustment rod 32. At the same time, the end of the connecting main shaft 31 away from the first harrow group bracket 11 is rotatably connected to a driving steering rod 33, and the driving steering rod 33 is connected to at least one driving shock absorber 35. One end of the driving shock absorber 35 is fixedly connected to the driving steering rod 33, and the other end is fixedly connected to a shock absorbing connecting plate 34, and the shock absorbing connecting plate 34 is fixedly connected to a driving connecting rod 36.

[0030] The working principle of this embodiment is as follows:

[0031] First, a disc harrow that is easy to adjust in the present embodiment is transported to the working area. At this time, the moving wheel 52 is rotated to leave the working surface. Then, the equipment is adjusted according to the site operation requirements. First, the second harrow group unit 2 is rotated to a suitable angle along the harrow group connecting mechanism 6, and then the harrow group angle positioning shaft 44 is inserted into the harrow group angle positioning hole corresponding to the angle, so that the relative angle between the first harrow group unit 1 and the second harrow group unit 2 is fixed. Then, according to the requirements, a suitable combination of drive angle adjustment holes and drive angle adjustment holes is selected, and the position between the connecting spindle 31 and the drive angle adjustment rod 32 is adjusted to be coaxial with the drive angle adjustment holes of this group. Then, the selected drive angle adjustment holes and drive angle adjustment holes are passed through the connecting mechanisms such as bolts, so as to fix the angle between the connecting spindle 31 and the first harrow group bracket 11. Subsequently, the traction equipment can be connected to the drive connecting rod 36, and finally the disc harrow is towed by the traction equipment for farming operations.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal", "head, tail" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0033] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A disc harrow that is easy to adjust, characterized in that: include: The first rake group unit (1) comprises a first rake group bracket (11), the first rake group bracket (11) is rotatably provided with a first rake group rotating shaft (12), a plurality of first rake blades (13) are fixedly provided on the first rake group rotating shaft (12), the first rake group bracket (11) is rotatably provided with a first scraper driving rotating shaft (14), a plurality of first scraper blades (15) are fixedly provided on the first scraper driving rotating shaft (14), and the first scraper blades (15) are matched one by one with the first rake blades (13); The second rake group unit (2) comprises a second rake group bracket (21), the second rake group bracket (21) is rotatably provided with a second rake group rotating shaft (22), a plurality of second rake blades (23) are fixedly provided on the second rake group rotating shaft (22), the second rake group bracket (21) is rotatably provided with a second scraper driving rotating shaft (24), a plurality of second scraper blades (25) are fixedly provided on the second scraper driving rotating shaft (24), and the second scraper blades (25) are matched one by one with the second rake blades (23); A rake group connection mechanism (6) is used to connect the first rake group unit (1) and the second rake group unit (2), wherein the first rake group unit (1) and the second rake group unit (2) are rotatably connected via the rake group connection mechanism (6). A driving connection mechanism (3) comprises a connection main shaft (31), one end of the connection main shaft (31) being rotatably connected to the first rake group bracket (11); The rake group angle adjustment mechanism (4) comprises a rake group angle adjustment rod (41), the rake group angle adjustment rod (41) is rotatably connected to the first rake group bracket (11), a second rake group connection block (42) is sleeved on the outer side of the rake group angle adjustment rod (41), and the second rake group connection block (42) is rotatably connected to the second rake group bracket (21).

2. The easily adjustable disc harrow according to claim 1, characterized in that: The rake group connecting mechanism (6) comprises a first upper connecting plate (61), a first lower connecting plate (62), a second connecting plate (63) and a connecting shaft, wherein the first upper connecting plate (61) and the first lower connecting plate (62) are fixedly connected to the first rake group bracket (11), and the second connecting plate (63) is fixedly connected to the second rake group bracket (21), and two ends of the connecting shaft are respectively fixedly connected to the first upper connecting plate (61) and the first lower connecting plate (62), and the second connecting plate (63) is arranged between the first upper connecting plate (61) and the first lower connecting plate (62) and is rotatably connected to the connecting shaft, and an upper damping spring (64) and a lower damping spring (65) are sleeved on the outer side of the connecting shaft, one end of the upper damping spring (64) is fixedly connected to the first upper connecting plate (61), and the other end is fixedly connected to the second connecting plate (63), and one end of the lower damping spring (65) is fixedly connected to the first lower connecting plate (62), and the other end is fixedly connected to the second connecting plate (63).

3. The easily adjustable disc harrow according to claim 1, characterized in that: The rake group angle adjustment rod (41) is provided with a plurality of rake group angle positioning holes in an array along the moving direction of the second rake group connection block (42); the second rake group connection block (42) is rotatably provided with a rake group angle positioning shaft (44) adapted to the rake group angle positioning holes.

4. The easily adjustable disc harrow according to claim 3, characterized in that: The second rake group connection block (42) is fixedly connected to a connection block rotating shaft, and the second rake group connection block (42) is rotatably connected to the second rake group bracket (21) via the connection block rotating shaft. A connection block buffer spring (43) is sleeved on the outer side of the connection block rotating shaft, and one end of the connection block buffer spring (43) is fixedly connected to the second rake group connection block (42), and the other end is fixedly connected to the second rake group bracket (21).

5. The easily adjustable disc harrow according to claim 1, characterized in that: The driving connection mechanism (3) further comprises a driving angle adjustment rod (32), one end of which is rotatably connected to the first rake group bracket (11), a plurality of driving angle adjustment holes are arranged in an array on the driving angle adjustment rod (32), and a plurality of driving angle positioning holes matched with the driving angle adjustment holes are arranged in an array on the connecting main shaft (31).

6. The easily adjustable disc harrow according to claim 5, characterized in that: One end of the connecting main shaft (31) away from the first rake group bracket (11) is rotatably connected to a driving steering rod (33), and the driving steering rod (33) is connected to at least one driving shock absorber (35), one end of the driving shock absorber (35) is fixedly connected to the driving steering rod (33), and the other end is fixedly connected to a shock absorbing connecting plate (34), and the shock absorbing connecting plate (34) is fixedly connected to a driving connecting rod (36).

7. The easily adjustable disc harrow according to claim 1, characterized in that: The second rake group bracket (21) is rotatably connected to a rake group moving mechanism (5), and the rake group moving mechanism (5) comprises a moving mechanism bracket (51) rotatably connected to the second rake group bracket (21), and the moving mechanism bracket (51) is rotatably connected to at least two moving wheels (52).

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