Novel power-driven harrow

Abstract

The utility model provides a novel power-driven harrow, which relates to the technical field of agricultural working machinery equipment, and comprises a harrow frame and a soil leveling and pressing device, the harrow frame comprises a suspension assembly, a protection assembly and a soil crushing assembly, the protection assembly comprises a protection cover shell and a protection seat which are fixedly installed together, the soil leveling and pressing device comprises an installation frame fixedly connected with the harrow frame, the installation frame is installed on the protection base through a first adjusting and connecting mechanism, a soil leveling beam, a pressing roller and a soil scraping shovel are sequentially arranged on the installation frame from front to back, a height adjuster is jointly hinged between the soil leveling beam and the installation frame, and connecting structures are arranged between the two ends of the soil leveling beam and the installation frame. According to the utility model, the height of the press roller and the angle of the soil scraping shovel can be quickly adjusted, the suitability of the press roller to the compaction degree of a seedbed is improved, and the soil scraping effect of the soil scraping shovel to the press roller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural working machinery and equipment, in particular to a novel power-driven harrow. Background Art

[0002] In the process of agricultural production, in order to meet the growth needs of crops and increase crop yields, it is necessary to use tillage agricultural machinery (such as power-driven harrows) to loosen, level and compact the land. The power-driven harrow generally includes a harrow frame, a soil-leveling beam, a compaction roller and a scraper. The harrow frame is connected to the traction equipment, and the harrow teeth at the bottom are used to loosen and crush the soil. Then, the soil is leveled by the soil-leveling beam, and the compaction roller is used to compact the tilled soil.

[0003] The existing power-driven harrows mainly have the following problems: first, the required compaction strength in different soil environments is not the same. Only the appropriate compaction strength can create a top-solid and bottom-empty seedling bed that is most suitable for crop growth. In traditional power-driven harrows, a large number of bolts need to be disassembled and assembled to complete the height adjustment work, which is very troublesome and difficult to operate. Second, due to the different soil conditions in different soil environments, the amount of soil attached to the peripheral wall of the compaction roller will vary greatly during the compaction operation. In traditional power-driven harrows, the distance between the scraper shovel and the peripheral wall of the compaction roller is fixed, and reliable scraping of the compaction roller cannot be achieved.

[0004] Therefore, a new type of power-driven rake that can solve the above problems is needed. Utility Model Content

[0005] The utility model provides a novel power-driven harrow, which realizes the rapid adjustment of the height of the pressing roller and the angle of the scraping shovel, improves the suitability of the pressing roller for the compaction degree of the seedbed, and improves the scraping effect of the scraping shovel on the pressing roller.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A new type of power-driven rake comprises a rake frame and a soil-leveling and suppressing device arranged at the front and rear, the rake frame comprises a suspension assembly, a protection assembly and a soil crushing assembly, the protection assembly comprises a protection cover shell and a protection seat fixedly installed together, the soil-leveling and suppressing device comprises a mounting frame fixedly connected to the rake frame, the mounting frame is installed on the protection seat through a first adjustment connection mechanism, the mounting frame is provided with a soil-leveling beam, a suppression roller and a scraper shovel in sequence from front to back, a height adjuster is hinged between the soil-leveling beam and the mounting frame, a connection structure is provided between the two ends of the soil-leveling beam and the mounting frame, and a second adjustment connection mechanism is provided between the scraper shovel and the mounting frame.

[0008] As a preferred technical solution, the first adjustment connection mechanism includes two relatively arranged connecting frames, one connecting frame is fixed to each of the two ends of the protective seat, a connecting frame is hingedly installed on each of the connecting frames, and one end of each of the connecting side plates away from the connecting frame is fixedly connected to the mounting frame, and a plurality of upper limit holes are provided at the upper end of each of the connecting frames, and a plurality of lower limit holes are provided at the lower end of each of the connecting frames, wherein an upper limit pin for upper positioning of the connecting side plate is provided in one of the upper limit holes, and a lower limit pin for lower positioning of the connecting side plate is provided in one of the lower limit holes.

[0009] As a preferred technical solution, the second adjustment connection mechanism includes a pair of square end plates, and a square end plate is welded to each of the two ends of the scraper shovel. One corner of each of the square end plates is fixedly connected to the mounting frame by a positioning bolt, and the other three corners of each of the square end plates are mounted on the mounting frame by adjusting bolts. Three pairs of arc grooves are provided on the mounting frame, and the position of each of the arc grooves corresponds to the position of an adjusting bolt, and each of the adjusting bolts passes through the corresponding arc groove.

[0010] As a preferred technical solution, the connecting structure includes a pair of relatively arranged connecting end plates, the connecting end plates include a first connecting section and a second connecting section which are integrally formed in a bent shape, the flat soil beam is arranged between the two first connecting sections, each of the first connecting sections is welded and fixed to the end of the flat soil beam, each of the second connecting sections is arranged on the outside of the mounting frame, each of the second connecting sections is hingedly mounted on the outer wall of the mounting frame, a side baffle is arranged on the inner side of each of the second connecting sections, each of the side baffles is fixed to the corresponding second connecting section, and each of the side baffles is arranged below the mounting frame.

[0011] As a preferred technical solution, the mounting frame includes two mounting side plates and a mounting crossbeam fixed between the two mounting side plates, the soil leveling beam, the pressing roller and the scraper shovel are all arranged between the two mounting side plates, each of the side baffles is arranged below the corresponding mounting side plate, each of the side baffles and the corresponding mounting side plate are on the same vertical plane, both ends of the pressing roller are rotatably mounted on the corresponding mounting side plates, and each of the square end plates is mounted on the mounting side plates by the positioning bolts and the adjusting bolts.

[0012] As a preferred technical solution, each of the connecting frames includes an outer plate fixed on the protective seat, an inner plate is fixed on the inner wall of each of the outer plates, an installation gap is formed between each of the outer plates and the inner plates, the hinged end of each of the connecting side plates is inserted into the corresponding installation gap, and each of the outer plates and the inner plates is commonly provided with a plurality of upper limit holes and lower limit holes.

[0013] As a preferred technical solution, the suspension assembly includes a suspension beam, an upper suspension nose is provided in the middle of the suspension beam, and a support vertical plate is provided at both ends of the suspension beam. The lower end of each of the support vertical plates is fixedly mounted on the protective cover shell through a first support seat, and a lower suspension nose is provided on each of the first support seats. A support oblique beam is fixed to the upper end of each of the support vertical plates, and the lower end of each of the support oblique beams is fixedly mounted on the protective cover shell through a second support seat.

[0014] As a preferred technical solution, the soil crushing assembly includes a plurality of rake teeth arranged in sequence along the length direction of the protective seat, and each of the rake teeth is rotatably mounted on the protective seat.

[0015] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0016] Since the new power-driven rake includes a rake frame and a soil-leveling and pressing device, the soil-leveling and pressing device is installed on the rake frame through a first adjusting connection mechanism. In the utility model, the first adjusting connection mechanism is provided to realize rapid adjustment of the height of the pressing roller in the soil-leveling and pressing device. The operator adjusts the height of the pressing roller according to the soil environment in the operating area so that the pressing force applied by the pressing roller on the seedbed meets the operating requirements, thereby improving the suitability of the pressing roller for the compaction degree of the seedbed, and then the utility model can be used to arrange a seedbed with a solid top and a hollow bottom suitable for the growth of crops.

[0017] Since the soil pressing device includes a mounting frame, a soil leveling beam, a pressing roller and a scraper shovel, a second adjusting connection mechanism is provided between the scraper shovel and the mounting frame. In the utility model, the second adjusting connection mechanism is provided to adjust the distance between the scraper shovel and the pressing roller, so that no matter how much soil is attached to the peripheral wall of the pressing roller, it can be removed, thereby effectively improving the scraping effect of the scraper shovel on the pressing roller, and further ensuring the continuous pressing effect of the pressing roller on the seedbed.

[0018] Since a connecting structure is provided between the flat earth beam and the mounting frame, the connecting structure includes a connecting end plate and a side baffle plate. In the utility model, the connecting end plate is provided in a bent shape so that the second connecting section of the connecting end plate is outside the mounting frame and is hinged, and reinforcing ribs are fixed on the first connecting section and the second connecting section, thereby increasing the strength and structural stability of the connecting end plate and improving the stability of the installation of the flat earth beam.

[0019] Since the first adjustment connection mechanism includes a connecting frame, a connecting side plate, an upper limit pin and a lower limit pin, the connecting frame includes an outer plate and an inner plate, and an installation gap is formed between the outer plate and the inner plate. In the utility model, the hinged end of the connecting side plate is arranged in the installation gap, which mainly plays two roles. On the one hand, it protects the connecting side plate to avoid the situation where stones squeeze the connecting side plate during operation and cause damage. On the other hand, it realizes two-point support for the upper limit pin and the lower limit pin, improves the stability of the upper limit pin and the lower limit pin, thereby ensuring the reliability and stability of the upper limit pin and the lower limit pin in limiting the connecting side plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 for Figure 1 A side view schematic diagram of

[0023] Figure 3 for Figure 1 Schematic diagram of top view;

[0024] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0025] Figure 5 It is a structural schematic diagram of the connecting frame in the utility model.

[0026] Wherein: 1. protection seat; 2. protection cover shell; 3. mounting frame; 4. soil leveling beam; 5. pressure roller; 6. scraper; 7. height adjuster; 8. connecting frame; 9. connecting side plate; 10. upper limit hole; 11. lower limit hole; 12. upper limit pin; 13. lower limit pin; 14. square end plate; 15. positioning bolt; 16. adjusting bolt; 17. arc groove; 18. connecting end plate; 19. first connecting section; 20. second connecting section; 21. side baffle; 22. installing side plate; 23. installing crossbeam; 24. outer plate; 25. inner plate; 26. installing gap; 27. hanging crossbeam; 28. upper hanging nose; 29. ​​supporting vertical plate; 30. first supporting seat; 31. lower hanging nose; 32. supporting inclined beam; 33. second supporting seat; 34. rake teeth. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] like Figure 1-Figure 5 As shown together, the new power-driven rake includes a rake frame and a soil leveling and suppressing device arranged at the front and rear, the rake frame includes a suspension assembly, a protection assembly and a soil crushing assembly, the protection assembly includes a protection cover shell 2 and a protection seat 1 fixedly installed together, the soil leveling and suppressing device includes a mounting frame 3 fixedly connected to the rake frame, the mounting frame 3 is installed on the protection seat 1 through a first adjusting connection mechanism, and the mounting frame 3 is sequentially provided with a soil leveling beam 4, a suppression roller 5 and a scraper shovel 6 from front to back, and a height adjuster 7 is hinged between the soil leveling beam 4 and the mounting frame 3. In this embodiment, the height adjuster 7 is a prior art, and its structure and working principle are well known to ordinary technicians in this field, and are not repeated here; a connecting structure is arranged between the two ends of the soil leveling beam 4 and the mounting frame 3, and a second adjusting connection mechanism is arranged between the scraper shovel 6 and the mounting frame 3.

[0030] Among them, the first adjustment connection mechanism includes two relatively arranged connection frames 8, and a connection frame 8 is fixed at both ends of the protective seat 1, each connection frame 8 is hingedly installed with a connection side plate 9, and each connection side plate 9 is fixedly connected to the mounting frame 3 at one end away from the connection frame 8, and each connection frame 8 is provided with a plurality of upper limit holes 10 at the upper end, and a plurality of lower limit holes 11 at the lower end of each connection frame 8, wherein an upper limit pin 12 for upper limit positioning of the connection side plate 9 is arranged in one of the upper limit holes 10, wherein a lower limit pin 12 for upper limit positioning of the connection side plate 9 is arranged in one of the upper limit holes 10, and ... A lower limit pin 13 for lower limiting the connecting side plate 9 is arranged in the limit hole 11. In the present embodiment, the lower limit pin 13 is used for lower limiting and supporting the connecting side plate 9, thereby defining the lowest position of the pressing roller 5. The upper limit pin 12 is used for upper limiting the connecting side plate 9, thereby defining the highest position of the pressing roller 5. The operator can adjust the compaction strength of the pressing roller 5 on the seedbed according to different soil environments and planting requirements of different crops, thereby creating a seedbed environment most suitable for the growth of crops.

[0031] In the present invention, the height of the pressing roller 5 is adjusted as follows: the operator inserts the lower limit pin 13 into the lower limit hole 11 at different heights, and uses the lower limit pin 13 to support the connecting side plate 9 to adjust the lowest height of the connecting side plate 9, and inserts the upper limit pin 12 into the appropriate upper limit hole 10 to limit the highest position of the connecting side plate 9, thereby limiting the height of the pressing roller 5 within an appropriate height range, which not only improves the stability of the pressing roller 5, but also avoids the situation where the seedling bed is over-compacted due to the pressing roller 5 being too low, or the seedling bed cannot be compacted due to the pressing roller 5 being too high.

[0032] like Figure 2 and Figure 3 As shown together, the second adjustment connection mechanism includes a pair of square end plates 14, and a square end plate 14 is welded to each of the two ends of the scraper shovel 6. One corner of each square end plate 14 is fixedly connected to the mounting frame 3 by a positioning bolt 15, and the other three corners of each square end plate 14 are mounted on the mounting frame 3 by adjusting bolts 16. Three pairs of arc grooves 17 are provided on the mounting frame 3. The position of each arc groove 17 corresponds to the position of an adjusting bolt 16, and each adjusting bolt 16 passes through the corresponding arc groove 17. In this embodiment, the angle of the scraper shovel 6 is adjusted according to actual needs, which not only ensures the scraper shovel 6 to remove the soil attached to the pressing roller 5. The scraper shovel 6 is also prevented from being damaged due to hard scraping.

[0033] In the utility model, the method for adjusting the angle of the scraper shovel 6 is as follows: the operator loosens all the positioning bolts 15 and the adjusting bolts 16, so that the scraper shovel 6 can rotate around the positioning bolts 15, and the adjusting bolts 16 slide in the arc groove 17. The scraper shovel 6 is rotated according to actual needs to make the scraper shovel 6 approach or move away from the pressing roller 5. After adjusting the distance between the scraper shovel 6 and the pressing roller 5 to an appropriate size, the positioning bolts 15 and the adjusting bolts 16 are tightened to lock the scraper shovel 6 to keep it at this angle position.

[0034] like Figure 2-Figure 4 As shown together, the connection structure includes a pair of relatively arranged connection end plates 18, and the connection end plates 18 include a first connection section 19 and a second connection section 20 which are integrally formed in a bent shape. The flat earth beam 4 is arranged between the two first connection sections 19, and each first connection section 19 is welded and fixed to the end of the flat earth beam 4, and each second connection section 20 is arranged on the outer side of the mounting frame 3, and each second connection section 20 is hingedly mounted on the outer wall of the mounting frame 3, and a side baffle 21 is arranged on the inner side of each second connection section 20, and each side baffle 21 is fixed on the corresponding second connection section 20, and each side baffle 21 is arranged below the mounting frame 3. In this embodiment, reinforcing ribs are fixed on the first connection section 19 and the second connection section 20. The bent connection end plates 18 and the reinforcement ribs increase the strength and structural stability of the connection end plates 18, thereby improving the stability of the installation of the flat earth beam 4.

[0035] like Figure 1-Figure 5 As shown together, the mounting frame 3 includes two mounting side plates 22 and a mounting cross beam 23 fixed between the two mounting side plates 22. The leveling beam 4, the pressing roller 5 and the scraper 6 are all arranged between the two mounting side plates 22. Each side baffle plate 21 is arranged below the corresponding mounting side plate 22. Each side baffle plate 21 and the corresponding mounting side plate 22 are on the same vertical plane. Both ends of the pressing roller 5 are rotatably mounted on the corresponding mounting side plates 22. Each square end plate 14 is mounted on the mounting side plate 22 by a positioning bolt 15 and an adjusting bolt 16.

[0036] like Figure 2 and Figure 5 As shown together, each connecting frame 8 includes an outer plate 24 fixed on the protective seat 1, an inner plate 25 is fixed on the inner wall of each outer plate 24, a mounting gap 26 is formed between each outer plate 24 and the inner plate 25, and the hinged end of each connecting side plate 9 is inserted into the corresponding mounting gap 26, and each outer plate 24 and inner plate 25 are commonly provided with a plurality of upper limit holes 10 and lower limit holes 11.

[0037] Embodiment 2

[0038] This embodiment is basically the same as the first embodiment, except that:

[0039] like Figure 1-Figure 5 As shown together, the suspension assembly includes a suspension beam 27, an upper suspension nose 28 is provided in the middle of the suspension beam 27, and a support vertical plate 29 is provided at both ends of the suspension beam 27. The lower end of each support vertical plate 29 is fixedly mounted on the protective cover shell 2 through a first support seat 30, and a lower suspension nose 31 is provided on each first support seat 30. A support oblique beam 32 is fixed to the upper end of each support vertical plate 29, and the lower end of each support oblique beam 32 is fixedly mounted on the protective cover shell 2 through a second support seat 33.

[0040] Moreover, the soil crushing assembly includes a plurality of rake teeth 34 arranged in sequence along the length direction of the protection seat 1 , and each rake tooth 34 is rotatably mounted on the protection seat 1 .

[0041] In summary, the new power-driven rake proposed in the utility model realizes the rapid adjustment of the height of the pressing roller 5 and the angle of the scraper shovel 6, improves the suitability of the pressing roller 5 for the compaction degree of the seedbed, and improves the scraping effect of the scraper shovel 6 on the pressing roller 5.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of power driven rake, characterized in that: It includes a rake frame and a soil leveling and suppressing device arranged at the front and rear, the rake frame includes a suspension assembly, a protection assembly and a soil crushing assembly, the protection assembly includes a protection cover shell and a protection seat fixedly installed together, the soil leveling and suppressing device includes a mounting frame fixedly connected to the rake frame, the mounting frame is installed on the protection seat through a first adjustment connection mechanism, the mounting frame is sequentially provided with a soil leveling beam, a suppression roller and a scraper shovel from front to back, a height adjuster is hinged between the soil leveling beam and the mounting frame, a connecting structure is provided between the two ends of the soil leveling beam and the mounting frame, and a second adjustment connection mechanism is provided between the scraper shovel and the mounting frame.

2. The new power-driven rake according to claim 1, characterized in that: The first adjustment connection mechanism includes two connecting frames arranged opposite to each other, one connecting frame is fixed to each of the two ends of the protective seat, a connecting frame is hingedly installed on each of the connecting frames, and one end of each of the connecting side plates away from the connecting frame is fixedly connected to the mounting frame, and a plurality of upper limit holes are provided at the upper end of each of the connecting frames, and a plurality of lower limit holes are provided at the lower end of each of the connecting frames, wherein an upper limit pin for upper positioning of the connecting side plate is provided in one of the upper limit holes, and a lower limit pin for lower positioning of the connecting side plate is provided in one of the lower limit holes.

3. The new power-driven rake according to claim 2, characterized in that: The second adjustment connection mechanism includes a pair of square end plates, and a square end plate is welded to each of the two ends of the scraper shovel. One corner of each of the square end plates is fixedly connected to the mounting frame by a positioning bolt, and the other three corners of each of the square end plates are mounted on the mounting frame by adjusting bolts. Three pairs of arc grooves are provided on the mounting frame, and the position of each of the arc grooves corresponds to the position of an adjusting bolt, and each of the adjusting bolts passes through the corresponding arc groove.

4. The new power-driven rake according to claim 3, characterized in that: The connecting structure includes a pair of connecting end plates arranged opposite to each other, and the connecting end plates include a first connecting section and a second connecting section which are integrally formed in a bent shape. The flat soil beam is arranged between the two first connecting sections, and each of the first connecting sections is welded and fixed to the end of the flat soil beam. Each of the second connecting sections is arranged on the outside of the mounting frame, and each of the second connecting sections is hingedly mounted on the outer wall of the mounting frame. A side baffle is arranged on the inner side of each of the second connecting sections, and each of the side baffles is fixed to the corresponding second connecting section, and each of the side baffles is arranged below the mounting frame.

5. The new power-driven rake according to claim 4, characterized in that: The mounting frame includes two mounting side plates and a mounting crossbeam fixed between the two mounting side plates, the soil leveling beam, the pressing roller and the scraper shovel are all arranged between the two mounting side plates, each of the side baffles is arranged below the corresponding mounting side plate, each of the side baffles and the corresponding mounting side plate are on the same vertical plane, both ends of the pressing roller are rotatably mounted on the corresponding mounting side plates, and each of the square end plates is mounted on the mounting side plates by the positioning bolts and the adjusting bolts.

6. The new power-driven rake according to claim 5, characterized in that: Each of the connecting frames includes an outer plate fixed on the protective seat, an inner plate is fixed on the inner wall of each of the outer plates, an installation gap is formed between each of the outer plates and the inner plates, and the hinged end of each of the connecting side plates is inserted into the corresponding installation gap. Each of the outer plates and inner plates is commonly provided with a plurality of upper limit holes and lower limit holes.

7. The new power-driven rake according to claim 6, characterized in that: The suspension assembly includes a suspension beam, an upper suspension nose is provided in the middle of the suspension beam, and a support vertical plate is provided at each end of the suspension beam. The lower end of each support vertical plate is fixedly mounted on the protective cover shell through a first support seat, and a lower suspension nose is provided on each of the first support seats. A support oblique beam is fixed to the upper end of each support vertical plate, and the lower end of each support oblique beam is fixedly mounted on the protective cover shell through a second support seat.

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