Agricultural land leveler scraping mechanism

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to an agricultural land leveler scraping mechanism which comprises a supporting plate and two mounting rods and further comprises a scraping plate, a transmission rod, a pushing frame, a buffering mechanism and a receding mechanism, and the buffering mechanism comprises two limiting plates, a plurality of buffering springs and a plurality of sliding assemblies. The avoiding mechanism comprises a driving assembly, two insertion rods and two guide plates, two cross rods are fixedly arranged at the end, away from the buffer spring, of the transmission frame, an arc-shaped groove is formed in the outer wall of each guide plate, the two insertion rods are fixedly arranged on the outer walls of the two ends of the pushing frame correspondingly, and each insertion rod is connected with one arc-shaped groove in an inserted mode; according to the scraping mechanism of the agricultural land leveler, direct avoidance or collision advancing can be selected according to the size of an obstacle, the scraping plate is prevented from being damaged while the land leveling work is not delayed, and then the practicability and flexibility of the mechanism are improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a leveling mechanism for an agricultural grader. Background Technology

[0002] Earthmoving machinery that uses a scraper to level the ground. The scraper is mounted between the front and rear axles of the machine and can be raised, lowered, tilted, rotated, and extended. It is flexible and accurate in its movements, easy to operate, and provides high precision in leveling the ground. It is suitable for constructing roadbeds and pavements, building slopes, excavating ditches, mixing road mixtures, clearing snow, pushing loose materials, and maintaining dirt roads and gravel roads.

[0003] The existing grader leveling mechanism has the following shortcomings:

[0004] 1. The scraper cannot rotate. When encountering large obstacles, the scraper cannot avoid them in time. Scraping hard can easily damage the skateboard, resulting in economic losses.

[0005] 2. Existing scrapers and the push frame for mounting scrapers are usually designed as a single piece. When the scraper or push frame is damaged, it is inconvenient to replace it and it can only be discarded, thus reducing the service life of the leveling mechanism. Utility Model Content

[0006] The purpose of this utility model is to provide a leveling mechanism for agricultural graders.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A leveling mechanism for an agricultural land grader is provided, comprising a support plate and two mounting rods. The support plate is horizontally arranged, and the two mounting rods are fixed to the outer wall of one end of the support plate via a connecting plate.

[0009] It also includes scrapers, transmission rods, push frames, buffer mechanisms, and obstacle avoidance mechanisms;

[0010] The buffer mechanism is located on the top of the support plate, the transmission rod is located on the buffer assembly, the push frame is hinged at the end of the transmission rod away from the mounting rod, and the scraper is fixed at the bottom of the push frame;

[0011] The buffer mechanism includes two limiting plates, several buffer springs, and several sliding components. The two limiting plates are fixed on the top of the support plate, and several guide rods are fixed on the two limiting plates. Each buffer spring is sleeved on a guide rod. Several sliders are fixed on the end of the transmission rod away from the push frame. Each slider is slidably connected to a guide rod. Several sliding components are symmetrically arranged between the support plate and the transmission rod.

[0012] The obstacle avoidance mechanism is located on the transmission rod. The obstacle avoidance mechanism includes a drive assembly, two insert rods and two guide plates. Two crossbars are fixedly installed at the end of the transmission frame away from the buffer spring. Each guide plate is fixedly installed at the end of a crossbar away from the transmission frame. An arc-shaped groove is opened on the outer wall of each guide plate. The two insert rods are respectively fixed on the outer walls of both ends of the push frame. Each insert rod is inserted into an arc-shaped groove. The drive assembly is located between the transmission frame and the push frame.

[0013] Preferably, each sliding component includes a slider and a guide rail. The slider is fixedly mounted on the outer wall of the transmission frame, and the guide rail is fixedly mounted on the top of the support plate. The slider and the guide rail are slidably connected.

[0014] Preferably, the top of each slider and the top of each limiting plate abut against the two ends of a buffer spring.

[0015] Preferably, the drive assembly includes two hydraulic rods, each of which is hinged between the transmission frame and the push frame.

[0016] Preferably, the scraper is detachably connected to the push frame by bolts, and the outer wall of the scraper is provided with two screw holes.

[0017] Preferably, each mounting rod has a pin hole at its top.

[0018] Preferably, a number of reinforcing ribs are fixedly provided on the outer wall of the end of the push frame near the scraper.

[0019] Preferably, each insertion rod is fixed with an anti-detachment block at the end away from the push frame.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model designs a buffer mechanism, namely two limiting plates, several buffer springs and several sliding components. When the scraper encounters a small obstacle, the opposing force generated by the two causes the scraper to rise vertically. This allows the mechanism to immediately follow the agricultural vehicle after contacting the small obstacle, without delaying the leveling work, which helps to improve leveling efficiency.

[0022] 2. This utility model, through the design of an obstacle avoidance mechanism, namely a drive assembly, two insert rods, and two guide plates, allows the driver to activate the drive assembly via the controller when a large obstacle is detected on the leveling path. This causes the scraper and push frame to rotate towards the end closer to the support plate, thus moving the scraper away from the ground and avoiding the large obstacle. The agricultural vehicle then continues to move forward with the scraper, and the push frame and scraper are reset after passing the large obstacle. This protects the scraper from damage caused by hard scraping and avoids economic losses.

[0023] 3. Combining the beneficial effects of points 1 and 2, this mechanism can choose to directly avoid or advance against obstacles depending on their size. This does not delay the work on level ground and also avoids damage to the scraper, thereby improving the practicality and flexibility of the mechanism.

[0024] 4. Existing scrapers and push frames are generally designed as a single piece. When either the scraper or the push frame is damaged, it can only be discarded and new parts must be purchased to replace it. This utility model designs the scraper and push frame as a bolt-on and detachable structure, which allows for quick disassembly and replacement of new parts when either the scraper or the push frame on which the scraper is mounted is damaged, without having to discard the scraper and push frame directly. This reduces the cost of scraping the floor and also helps to improve the service life and maintenance efficiency of the mechanism. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below.

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0028] Figure 3 for Figure 1 Enlarged view of point B in the image;

[0029] Figure 4 This is a schematic diagram of the planar structure of the present invention;

[0030] Figure 5 for Figure 4 Enlarged view of point C in the image;

[0031] In the diagram: 1. Support plate; 2. Mounting rod; 3. Scraper; 4. Transmission rod; 5. Push frame; 6. Limiting plate; 7. Buffer spring; 8. Sliding assembly; 9. Guide rod; 10. Drive assembly; 11. Insert rod; 12. Guide plate; 13. Crossbar; 14. Arc groove; 15. Slider; 16. Guide rail; 17. Support block; 18. Hydraulic rod; 19. Screw hole; 20. Pin hole; 21. Reinforcing rib; 22. Anti-detachment block. Detailed Implementation

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0034] Reference Figures 1 to 5As shown, an agricultural grader leveling mechanism includes a support plate 1 and two mounting rods 2. The support plate 1 is horizontally arranged, and the two mounting rods 2 are fixed to the outer wall of one end of the support plate 1 by connecting plates.

[0035] It also includes scraper 3, transmission rod 4, push frame 5, buffer mechanism and avoidance mechanism;

[0036] The buffer mechanism is located on the top of the support plate 1, the transmission rod 4 is located on the buffer mechanism, the push frame 5 is hinged to the end of the transmission rod 4 away from the mounting rod 2, and the scraper 3 is fixedly located at the bottom of the push frame 5.

[0037] The buffer mechanism includes two limiting plates 6, several buffer springs 7 and several sliding components 8. The two limiting plates 6 are fixedly mounted on the top of the support plate 1. Several guide rods 9 are fixedly mounted on the two limiting plates 6. Each buffer spring 7 is sleeved on a guide rod 9. The several sliding components 8 are symmetrically arranged between the support plate 1 and the transmission rod 4.

[0038] The avoidance mechanism is located on the transmission rod 4. The avoidance mechanism includes a drive assembly 10, two insert rods 11 and two guide plates 12. Two crossbars 13 are fixedly provided at the end of the transmission frame away from the buffer spring 7. Each guide plate 12 is fixedly provided at the end of a crossbar 13 away from the transmission frame. An arc groove 14 is provided on the outer wall of each guide plate 12. The two insert rods 11 are respectively fixed on the outer walls of both ends of the push frame 5. Each insert rod 11 is inserted into an arc groove 14. The drive assembly 10 is located between the transmission frame and the push frame 5.

[0039] Reference Figures 1 to 5 As shown, each sliding assembly 8 includes a slider 15 and a guide rail 16. The slider 15 is fixedly mounted on the outer wall of the transmission frame, and the guide rail 16 is fixedly mounted on the top of the support plate 1. The slider 15 and the guide rail 16 are slidably connected. Two supports 17 are fixedly mounted on the top of the support plate 1, and the top of each support 17 is in contact with the bottom of the transmission frame. When encountering small obstacles during the leveling of farmland, the small obstacles come into contact with the scraper 3. Since the scraper 3 is fixedly connected to the push frame 5, and the push frame 5 is fixedly connected to several sliders 15 through the transmission frame, each... Each slider 15 is slidably connected to a guide rod 9, and each guide rod 9 is fixedly connected to a limiting plate 6. Each slider 15 is also slidably connected to a guide rail 16, thereby causing the transmission frame to rise vertically, which in turn drives the scraper 3 to rise vertically. This allows the mechanism to immediately follow the agricultural vehicle after contacting smaller obstacles, without delaying the leveling work, which is beneficial to improving leveling efficiency. The two support blocks 17 support the bottom of the transmission frame, providing a support effect and ensuring that the transmission frame always remains horizontal and does not tilt, thus not affecting the leveling operation of the scraper 3.

[0040] Reference Figures 1 to 5As shown, the top of each slider 15 and the top of each limiting plate 6 respectively abut against the two ends of a buffer spring 7. When the transmission frame drives the push frame 5 and the scraper 3 to rise vertically, the buffer spring 7 changes from the initial state to the taut state, playing a buffering role. When the scraper 3 passes over a small obstacle, the buffer spring 7 changes from the taut state to the stretched state, thereby pushing the transmission frame to reset so that it can avoid obstacles next time.

[0041] Reference Figures 1 to 5 As shown, the drive assembly 10 includes two hydraulic rods 18, each of which is hinged between the transmission frame and the push frame 5. This mechanism is equipped with a controller, which can be installed inside the cab of an agricultural vehicle used in conjunction with this mechanism. When encountering a large obstacle during the leveling of farmland, the driver activates the two hydraulic cylinders through the controller. Since the top of the push frame 5 is hinged to the transmission frame, and the end of the transmission frame away from the push frame 5 is fixedly connected to several sliders 15, the transmission frame and the push frame 5 are respectively hinged to both ends of each hydraulic rod 18, thereby causing the push frame 5 to rotate towards the end closer to the support plate 1 to avoid the large obstacle. Then, the agricultural vehicle drives the scraper 3 to continue moving forward. When it passes the large obstacle, the push frame 5 and the scraper 3 are reset, thus protecting the scraper 3 and preventing it from being damaged by hard scraping. During this process, the two insert rods 11 on the push frame 5 slide back and forth once in the two arc-shaped grooves 14 to ensure that the push frame 5 drives the scraper 3 to rotate and reset smoothly.

[0042] Reference Figures 1 to 5 As shown, the scraper 3 is detachably connected to the push frame 5 by bolts. The outer wall of the scraper 3 is provided with two screw holes 19. The existing scraper 3 and push frame 5 are generally integrally molded. When the scraper 3 or push frame 5 is damaged, it is directly discarded and a new one needs to be purchased. However, by designing the scraper 3 and push frame 5 to be detached by bolts, it is possible to quickly disassemble and replace the scraper 3 with a new one when either of them is damaged, without having to discard it directly. This reduces the cost of use and also helps to improve the service life and maintenance efficiency of the mechanism.

[0043] Reference Figures 1 to 5 As shown, each mounting rod 2 has a pin hole 20 at its top. The two pin holes 20 are used to install the pin shaft, which facilitates the stable connection between the two mounting rods 2 and the existing agricultural vehicle, thereby improving the matching effect of this mechanism with the existing agricultural vehicle and enhancing the practicality of this mechanism.

[0044] Reference Figures 1 to 5 As shown, a number of reinforcing ribs 21 are fixed on the outer wall of the push frame 5 near the scraper 3. The reinforcing ribs 21 enhance the rigidity of the push frame 5, thereby ensuring that the push frame 5 can drive the scraper 3 to level the ground, which is beneficial to improving the leveling effect of the scraper 3.

[0045] Reference Figures 1 to 5As shown, each insertion rod 11 is fixed with an anti-detachment block 22 at the end away from the push frame 5. The anti-detachment block 22 has a limiting effect to prevent the insertion rod 11 from detaching from the guide plate 12 when it slides in the arc groove 14, thereby ensuring that the push frame 5 drives the scraper 3 to rotate stably.

Claims

1. An agricultural land leveler scraping mechanism, comprising a support plate (1) and two mounting rods (2), the support plate (1) is arranged horizontally, the two mounting rods (2) are fixedly arranged on the outer wall of one end of the support plate (1) through a connecting plate, characterized in that: it further comprises a scraper (3), a transmission rod (4), a pushing frame (5), a buffer mechanism and an avoiding mechanism; the buffer mechanism is arranged on the top of the support plate (1), the transmission rod (4) is arranged on the buffer mechanism, the pushing frame (5) is hingedly arranged on the end of the transmission rod (4) away from the mounting rod (2), and the scraper (3) is fixedly arranged on the bottom of the pushing frame (5); the buffer mechanism comprises two limiting plates (6), a plurality of buffer springs (7) and a plurality of sliding assemblies (8), the two limiting plates (6) are fixedly arranged on the top of the support plate (1), a plurality of guide rods (9) are fixedly arranged on the two limiting plates (6), each buffer spring (7) is sleeved on a guide rod (9), and the plurality of sliding assemblies (8) are symmetrically arranged between the support plate (1) and the transmission rod (4); the avoiding mechanism is arranged on the transmission rod (4), the avoiding mechanism comprises a driving assembly (10), two inserting rods (11) and two guide plates (12), two cross rods (13) are fixedly arranged on the end of the transmission frame away from the buffer spring (7), each guide plate (12) is fixedly arranged on the end of one cross rod (13) away from the transmission frame, an arc-shaped groove (14) is formed in the outer wall of each guide plate (12), and the two inserting rods (11) are fixedly arranged on the outer walls of the two ends of the pushing frame (5) respectively, each inserting rod (11) is inserted into one arc-shaped groove (14), and the driving assembly (10) is arranged between the transmission frame and the pushing frame (5).

2. An agricultural land leveler screed according to claim 1 wherein: Each sliding assembly (8) comprises a sliding block (15) and a guide rail (16), the sliding block (15) is fixedly arranged on the outer wall of the transmission frame, the guide rail (16) is fixedly arranged on the top of the support plate (1), the sliding block (15) is in sliding connection with the guide rail (16), and the top of each supporting block (17) is in abutment with the bottom of the transmission frame.

3. An agricultural land leveler screed according to claim 2 wherein: The top of each sliding block (15) and the top of each limiting plate (6) are in abutment with the two ends of one buffer spring (7) respectively.

4. An agricultural land leveler screed as claimed in claim 3 wherein: The driving assembly (10) comprises two hydraulic rods (18), and each hydraulic rod (18) is hingedly arranged between the transmission frame and the pushing frame (5).

5. An agricultural land leveler screed as claimed in claim 4 wherein: The scraper (3) is detachably connected with the pushing frame (5) through bolts, and two screw holes (19) are formed in the outer wall of the scraper (3).

6. An agricultural land leveler screed according to claim 5 wherein: A pin hole (20) is formed in the top of each mounting rod (2).

7. An agricultural land leveler screed according to claim 6 wherein: A plurality of reinforcing ribs (21) are fixedly arranged on the outer wall of the end of the pushing frame (5) close to the scraper (3).

8. An agricultural land leveler screed according to claim 7 wherein: A anti-dropping block (22) is fixedly arranged on the end of each inserting rod (11) away from the pushing frame (5).

Images