Hydraulic scraper land leveler

Abstract

The utility model relates to the technical field of agricultural equipment, and discloses a hydraulic scraper land leveler which comprises a tractor, a connecting frame is fixedly installed on the rear portion of the tractor, a rotating plate is movably connected to the rear portion of the connecting frame through a shaft, a hydraulic rod is movably connected to the connecting frame through a shaft, and a telescopic rod is movably connected to the rear end of the hydraulic rod in a sleeved mode. The rear end of the telescopic rod is movably connected with the rotating plate through a shaft, grooves are evenly formed in the left side and the right side of the telescopic rod, a connecting ring is fixedly installed at the joint of the hydraulic rod and the telescopic rod, pumps are fixedly installed on the left side and the right side of the connecting ring correspondingly, and liquid storage boxes are fixedly installed on the sides, away from the connecting ring, of the pumps. A pipeline is formed in the connecting ring, electrorheological fluid is pumped into the liquid storage bag through a pump machine and powered on, the liquid storage bag is connected with the groove in a clamped mode, and therefore the telescopic rod is fixed, the rotating plate is prevented from deviating after the angle is adjusted, the stability of the device is improved, and the good soil scraping effect of the device is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to a hydraulic scraper grader. Background Art

[0002] Farmland construction machinery refers to construction machinery used for various earthwork and stonework operations to improve the basic conditions of agricultural production land, enhance the ability to resist natural disasters, and prevent soil erosion. Among them, the agricultural grader is a machine that uses a scraper to level the ground. It is the main equipment used for shaping and leveling operations. The scraper is generally installed behind the rear wheel of the tractor. The grader is flexible and accurate in movement, easy to operate, and can level the site with high precision. It is mostly used for farmland leveling operations, and can also be used for operations such as building terraces, leveling roads and sites.

[0003] In the prior art, due to the relatively complex working environment of the grader, the internal pressure of the hydraulic mechanism may decrease with the long-term use of the device. The telescopic rod cannot be fixed at the extension distance after being extended, and is prone to loosening, resulting in poor stability of the device. The angle of the scraper is easily offset during operation, affecting the device's effect of scraping and leveling the field. Therefore, in order to solve the above problems, the utility model proposes a hydraulic scraper grader. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a hydraulic scraper grader, which uses a pump to pump electrorheological fluid into a liquid storage bag and energize it, changing the electrorheological fluid from liquid to solid, so that the liquid storage bag is engaged with the groove, thereby locking the telescopic rod, preventing the telescopic rod from loosening due to insufficient pressure in the hydraulic rod after long-term use, and avoiding deviation of the rotating plate after adjusting the angle, thereby improving the stability of the device and helping the device maintain a good scraping and leveling effect.

[0005] The utility model provides the following technical solution: a hydraulic scraper grader, comprising a tractor, a connecting frame fixedly mounted on the rear of the tractor, a rotating plate movably connected to the rear of the connecting frame via an axis, a hydraulic rod movably connected to the connecting frame via an axis, two hydraulic rods symmetrically distributed on the left and right, a telescopic rod movably sleeved on the rear end of the hydraulic rod, the rear end of the telescopic rod movably connected to the rotating plate via an axis, grooves evenly provided on the left and right sides of the telescopic rod, a connecting ring fixedly mounted at the connection between the hydraulic rod and the telescopic rod, a pump fixedly mounted on the left and right sides of the connecting ring, a liquid storage box fixedly mounted on the side of the pump away from the connecting ring, and a groove evenly provided on the left and right sides of the telescopic rod There are two pipes, which are fixedly connected to the pump and the inner cavity of the connecting ring respectively. A current valve is fixedly installed on the inner wall of the connecting ring cavity and next to the pipe. There are two current valves. A liquid storage bag is fixedly installed at the connection between the pipe and the inner cavity of the connecting ring. There are two liquid storage bags. The liquid storage bags are snap-fitted with the grooves. The electrorheological fluid is pumped into the liquid storage bag by the pump and energized to change the electrorheological fluid from liquid to solid, so that a snap-fit ​​is formed between the liquid storage bag and the groove, thereby locking the telescopic distance of the telescopic rod, preventing the telescopic rod from loosening after long-term use, and avoiding deviation of the rotating plate after adjusting the angle, thereby improving the stability of the device and enabling the device to maintain a good scraping effect.

[0006] Preferably, a scraper plate is fixedly installed at the bottom of the rotating plate, and fixed rods are fixedly installed on the upper part of the scraper plate and on the left and right sides of the rotating plate respectively. A motor is fixedly installed at the bottom of the inner cavity of the rotating plate, and the movement of the connecting frame is driven by the movement of the tractor. During the movement, the connecting frame drives the scraper plate through the connecting mechanism to scrape and level the ground.

[0007] Preferably, a threaded rod is fixedly mounted on the output shaft of the motor, and the threaded rod is movably sleeved in the middle of the inner cavity of the fixed rod. A slider is movably sleeved on the threaded rod and located in the inner cavity of the fixed rod. The threaded rod is driven to rotate by the motor, and the slider is driven to move on it during the rotation of the threaded rod, thereby causing the slider to move in the inner cavity of the fixed rod.

[0008] Preferably, a slide groove is provided at the front of the fixed rod, the slide groove is fixedly connected to the inner cavity of the fixed rod, a connecting rod is fixedly installed at the front of the slider, the connecting rod is movably connected to the slide groove, and a cleaning plate is fixedly installed at the front end of the connecting rod, and the cleaning plate is located directly in front of the scraper plate, and the connecting rod is driven by the slider to slide in the slide groove, and the connecting rod drives the cleaning plate to clean the soil adhered to the scraper plate, thereby avoiding a large amount of soil adhering to the scraper plate, facilitating the subsequent use of the device, preventing the soil from eroding the scraper plate, and improving the durability of the scraper plate.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. When the hydraulic rod adjusts the telescopic rod to an appropriate distance, the electrorheological fluid in the liquid storage box is pumped out by the pump, and the electrorheological fluid enters the liquid storage bag through the pipeline. The current valve is started to energize the electrorheological fluid, so that the electrorheological fluid changes from liquid to solid, thereby forming a card connection between the liquid storage bag and the groove, thereby locking the telescopic rod, preventing the telescopic rod from loosening due to insufficient pressure in the hydraulic rod after long-term use of the device, and avoiding the deviation of the rotating plate after adjusting the angle, which is beneficial to improving the stability of the device when scraping the soil, so that the device has a good leveling effect on the farmland, improving the operating efficiency in subsequent field use, and promoting the improvement of agricultural production capacity.

[0011] 2. After the scraper plate finishes scraping and leveling the ground, the motor drives the threaded rod to rotate, so that the slider drives the cleaning plate through the connecting rod to clean the soil adhering to the scraper plate, so as to avoid a large amount of soil adhering to the scraper plate after the device operation is completed, and prevent the adhering soil from causing adverse effects on the farmland leveling effect, so that the scraper plate remains smooth and tidy, which is convenient for the subsequent use of the device, and at the same time prevents the acidic and alkaline substances in the field soil from eroding the scraper plate, effectively improving the durability of the scraper plate, and facilitating the maintenance of the device by the staff after agricultural operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the exterior structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the hydraulic rod of the utility model;

[0014] Figure 3 This is a schematic diagram of the driving structure of the cleaning device of the utility model;

[0015] Figure 4 This is a schematic diagram of the cleaning plate structure of the utility model;

[0016] Figure 5 For this utility model Figure 4 Enlarged schematic diagram of point A in the middle.

[0017] In the figure: 1. Tractor; 2. Connecting frame; 3. Rotating plate; 4. Hydraulic rod; 5. Telescopic rod; 6. Groove; 7. Connecting ring; 8. Pump; 9. Liquid storage box; 10. Pipeline; 11. Current valve; 12. Liquid storage bag; 13. Scraper plate; 14. Fixed rod; 15. Motor; 16. Threaded rod; 17. Slider; 18. Slide; 19. Connecting rod; 20. Cleaning plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 5 A hydraulic scraper grader comprises a tractor 1, a connecting frame 2 is fixedly installed at the rear of the tractor 1, a rotating plate 3 is movably connected to the rear of the connecting frame 2 through an axis, a hydraulic rod 4 is movably connected to the connecting frame 2 through an axis, the number of the hydraulic rods 4 is two and they are symmetrically distributed on the left and right, a telescopic rod 5 is movably sleeved on the rear end of the hydraulic rod 4, the rear end of the telescopic rod 5 is movably connected to the rotating plate 3 through an axis, grooves 6 are evenly provided on the left and right sides of the telescopic rod 5, a connecting ring 7 is fixedly installed at the connection between the hydraulic rod 4 and the telescopic rod 5, a pump 8 is fixedly installed on the left and right sides of the connecting ring 7, a liquid storage box 9 is fixedly installed on the side of the pump 8 away from the connecting ring 7, a pipe 10 is provided in the connecting ring 7, the number of the pipes 10 is two and they are fixedly connected to the pump 8 and the inner cavity of the connecting ring 7 respectively, an electric current valve 11 is fixedly installed on the inner wall of the cavity of the connecting ring 7 and located next to the pipe 10, the number of the electric current valve 11 is two, a liquid storage bag 12 is fixedly installed at the connection between the pipe 10 and the inner cavity of the connecting ring 7, the liquid storage bag 12 When the telescopic rod 5 is extended to a suitable distance, the pump 8 pumps out the electrorheological fluid stored in the liquid storage box 9, and the electrorheological fluid enters the liquid storage box 12 through the pipe 10. The current valve 11 energizes the electrorheological fluid, causing the electrorheological fluid to change from liquid to solid, so that a card connection is formed between the liquid storage box 12 and the groove 6, thereby locking the telescopic rod 5, preventing the telescopic rod 5 from loosening due to insufficient pressure in the hydraulic rod 4 after long-term use, and avoiding the rotation plate 3 from shifting after the angle is adjusted, which is beneficial to improving the stability of the device when scraping soil, so that the device has a good working effect. When the telescopic length of the telescopic rod 5 is adjusted, the current valve 11 stops energizing the electrorheological fluid, and the pipe 10 pumps the electrorheological fluid back to the liquid storage box 9. Since the liquid storage box 12 is made of rubber with good elasticity, it does not affect the extension and retraction of the telescopic rod 5.

[0020] A scraper plate 13 is fixedly installed at the bottom of the rotating plate 3, and a fixed rod 14 is fixedly installed on the upper part of the scraper plate 13 and on the left and right sides of the rotating plate 3. A motor 15 is fixedly installed at the bottom of the inner cavity of the rotating plate 3, and a threaded rod 16 is fixedly installed on the output shaft of the motor 15. The threaded rod 16 is movably sleeved in the middle of the inner cavity of the fixed rod 14. A slider 17 is movably sleeved on the threaded rod 16 and located in the inner cavity of the fixed rod 14. A slide groove 18 is provided at the front of the fixed rod 14, and the slide groove 18 is fixedly connected to the inner cavity of the fixed rod 14. A connecting rod 19 is fixedly installed at the front of the slider 17, and the connecting rod 19 is movably connected to the slide groove 18. A cleaning plate 20 is fixedly installed at the front end of the connecting rod 19. The cleaning plate 20 is located just in front of the scraper plate 13. After the plate 13 finishes scraping and leveling the ground, the motor 15 is started, and the motor 15 drives the threaded rod 16 to rotate, and the threaded rod 16 drives the slider 17 to move in the inner cavity of the fixed rod 14. During the movement of the slider 17, the connecting rod 19 is driven to slide in the slide groove 18, and the connecting rod 19 drives the cleaning plate 20 to clean the soil adhered to the scraper plate 13, so as to avoid a large amount of soil adhering to the scraper plate 13 after the device operation is completed, and to prevent the adhered soil from causing adverse effects on the scraping effect of the device, so that the scraper plate 13 remains smooth and tidy, which is convenient for the subsequent use of the device, and at the same time prevents the acidic and alkaline substances in the adhered soil from eroding the scraper plate 13, effectively improving the durability of the scraper plate 13, and facilitating the maintenance of the device by the staff.

[0021] Working principle: During the movement of the tractor 1, the scraper blade 13 is driven by the connecting frame 2 to level the ground. The telescopic length of the telescopic rod 5 is adjusted by the hydraulic rod 4 to rotate the rotating plate 3, thereby adjusting the angle of the scraper blade 13. When the telescopic rod 5 is extended to an appropriate distance, the pump 8 pumps out the electrorheological fluid stored in the liquid storage box 9. The electrorheological fluid enters the liquid storage capsule 12 through the pipe 10. The current valve 11 energizes the electrorheological fluid, causing the electrorheological fluid to change from liquid to solid, so that a card connection is formed between the liquid storage capsule 12 and the groove 6, thereby locking the telescopic rod 5. When the telescopic rod 5 is adjusted to a suitable distance, the pump 8 pumps out the electrorheological fluid stored in the liquid storage box 9. The electrorheological fluid enters the liquid storage capsule 12 through the pipe 10. The current valve 11 energizes the electrorheological fluid, causing the electrorheological fluid to change from liquid to solid, so that a card connection is formed between the liquid storage capsule 12 and the groove 6, thereby locking the telescopic rod 5. When the retraction rod 5 is extended or retracted, the current valve 11 stops energizing the electrorheological fluid, and the pipe 10 pumps the electrorheological fluid back into the liquid storage box 9. Since the liquid storage bag 12 is made of rubber with good elasticity, it does not affect the extension and retraction of the telescopic rod 5. After the scraper blade 13 completes scraping and leveling the ground, the motor 15 is started, and the threaded rod 16 is driven by the motor 15 to rotate. The threaded rod 16 drives the slider 17 to move in the inner cavity of the fixed rod 14. During the movement of the slider 17, it drives the connecting rod 19 to slide in the slide groove 18. The connecting rod 19 drives the cleaning plate 20 to clean the dust adhering to the scraper blade 13.

Claims

1. A hydraulic scraper grader comprising a tractor (1), characterized in that: The rear part of the tractor (1) is fixedly mounted with a connecting frame (2), the rear part of the connecting frame (2) is movably connected to a rotating plate (3) via a shaft, the connecting frame (2) is movably connected to a hydraulic rod (4) via a shaft, the hydraulic rods (4) are two in number and are symmetrically distributed on the left and right, the rear end of the hydraulic rod (4) is movably sleeved with a telescopic rod (5), the rear end of the telescopic rod (5) is movably connected to the rotating plate (3) via a shaft, the telescopic rod (5) is evenly provided with grooves (6) on the left and right sides, the connection between the hydraulic rod (4) and the telescopic rod (5) is fixedly mounted with a connecting ring (7), the left and right sides of the connecting ring (7) are respectively fixedly mounted with a connecting ring (7). A pump (8) is installed, and a liquid storage box (9) is fixedly installed on the side of the pump (8) away from the connecting ring (7). A pipe (10) is opened in the connecting ring (7), and the number of the pipes (10) is two and they are fixedly connected to the pump (8) and the inner cavity of the connecting ring (7), respectively. A current valve (11) is fixedly installed on the inner wall of the cavity of the connecting ring (7) and located next to the pipe (10). The number of the current valves (11) is two. A liquid storage bag (12) is fixedly installed at the connection between the pipe (10) and the inner cavity of the connecting ring (7). The number of the liquid storage bag (12) is two, and the liquid storage bag (12) is clamped with the groove (6).

2. The hydraulic scraper grader according to claim 1, characterized in that: A scraper plate (13) is fixedly mounted on the bottom of the rotating plate (3); fixed rods (14) are fixedly mounted on the upper portion of the scraper plate (13) and on the left and right sides of the rotating plate (3); and a motor (15) is fixedly mounted on the bottom of the inner cavity of the rotating plate (3).

3. The hydraulic scraper grader according to claim 2, characterized in that: A threaded rod (16) is fixedly mounted on the output shaft of the motor (15), and the threaded rod (16) is movably sleeved in the middle of the inner cavity of the fixed rod (14). A slider (17) is movably sleeved on the threaded rod (16) and located in the inner cavity of the fixed rod (14).

4. The hydraulic scraper grader according to claim 3, characterized in that: A chute (18) is provided at the front of the fixed rod (14), and the chute (18) is fixedly connected to the inner cavity of the fixed rod (14). A connecting rod (19) is fixedly installed at the front of the slider (17), and the connecting rod (19) is movably connected to the chute (18). A cleaning plate (20) is fixedly installed at the front end of the connecting rod (19), and the cleaning plate (20) is located directly in front of the scraper plate (13).

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