Land leveler

Abstract

The utility model relates to the technical field of agricultural instruments, in particular to a land leveler which comprises a traction frame, a connecting frame is connected to the traction frame, a depth-adjustable land leveling structure is connected to the connecting frame, an adjustable claw harrow structure is connected to the connecting frame, rotating idler wheels are connected to the bottom of the connecting frame, and the rotating idler wheels are connected to the bottom of the connecting frame. The land leveling structure with the adjustable depth comprises two sets of fixed shells, the two sets of fixed shells are connected to the end face of the connecting frame, rotating rods are connected to the fixed shells, and a rotating knob is connected to one end of each rotating rod. According to the land leveling structure with the adjustable rotating depth, the depth of the land leveling scraping plate penetrating into the soil can be adjusted through the transmission structure by rotating the rotating rod in the land leveling structure with the adjustable rotating depth, so that the accuracy of the device during land leveling is improved, meanwhile, under the action of the spring seat, the land leveling scraping plate can be leveled in a self-adaptive mode, and the quality during land leveling is further improved.

Description

Technical Field

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

[0002] Graders are used for leveling paddy fields. Due to the different soil types in paddy fields, leveling needs to be done according to the actual conditions. The scrapers on existing graders are not convenient to adjust the depth of the scrapers into the soil according to the usage conditions, which affects the quality of subsequent crop planting. At the same time, existing graders are not convenient to remove straw buried in the shallow soil layer, which makes it easy for straw to get stuck in the machine during subsequent planting. To address the above problems, a grader is needed. Utility Model Content

[0003] The purpose of this invention is to provide a grader to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A grader includes a tow frame, a connecting frame connected to the tow frame, a depth-adjustable leveling structure connected to the connecting frame, an adjustable claw rake structure connected to the connecting frame, and rotating rollers connected to the bottom of the connecting frame.

[0006] The depth-adjustable flat surface structure includes two sets of fixed housings connected to the end faces of the connecting frame. A rotating rod is connected to each fixed housing, and a rotating knob is connected to one end of each rotating rod. A shaft retainer is connected to the side wall of the fixed housing and to the cylindrical surface of the rotating rod. A rotating gear is connected to the side wall of the rotating rod and to the inner cavity of the fixed housing. A lifting rack is connected to the side wall of the rotating gear. A connecting column is connected to the side wall of the lifting rack. A spring seat is connected to the bottom of the connecting column via a connecting plate. Multiple sets of flat surface scrapers are connected to the bottom of the spring seat via the connecting plate.

[0007] As a preferred embodiment of this utility model, the adjustable claw rake structure includes two sets of fixed connecting plates, which are connected to the end faces of the connecting frame. A rotating connecting block is connected between the two sets of fixed connecting plates. An adjusting screw is connected to the rotating connecting block. An adjusting knob is connected to one end of the adjusting screw. A connecting plate is connected to the side wall of the adjusting screw. A connecting rotating rod is connected to the side wall of the connecting plate. Multiple sets of rotating claw rakes are connected to the side wall of the connecting rotating rod.

[0008] In a preferred embodiment of this utility model, the rotating rod is connected to the side wall of the fixed housing via a bearing seat, wherein the connection between the rotating rod and the bearing seat is a rotatable connection.

[0009] As a preferred embodiment of this utility model, a sliding groove is provided on the fixed housing and corresponding to the connecting column, wherein the connection between the connecting column and the sliding groove is a sliding connection.

[0010] As a preferred embodiment of this utility model, the leveling scraper is provided in multiple sets, wherein the multiple sets of leveling scrapers are connected alternately on the connecting plate at the bottom of the spring seat.

[0011] In a preferred embodiment of this utility model, the fixed connecting plate and the rotating connecting block are rotatably connected by a rotating shaft, and the adjusting screw is connected to the connecting plate by a threaded connection.

[0012] In a preferred embodiment of this utility model, the rotating connecting block and the adjusting screw are connected by a bearing, wherein the connection between the adjusting screw and the bearing is a rotating connection.

[0013] As a preferred embodiment of this utility model, the connecting rod is connected to the bottom of the connecting frame via a bearing seat, wherein the connection between the connecting rod and the bearing seat is a rotatable connection.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by setting an adjustable-depth leveling structure in the grader, the rotating rod in the adjustable-depth leveling structure can adjust the depth of the leveling scraper into the soil through the transmission structure, thereby improving the accuracy of the device when leveling. At the same time, under the action of the spring seat, the leveling scraper can be adaptively leveled, further improving the quality of leveling.

[0016] In this invention, an adjustable rake structure is installed in the land leveler. The adjusting screw in the adjustable rake structure can drive the rotating rake to rotate through the transmission structure, thereby adjusting the depth of the rotating rake in the soil. This allows the device to remove the straw buried in the soil before leveling, facilitating subsequent planting work. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isotropic structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustable-depth flat ground structure.

[0019] Figure 3 for Figure 2 Partial structural diagram;

[0020] Figure 4 This is a schematic diagram of the adjustable claw rake structure of this utility model.

[0021] In the diagram: 1. Traction frame; 2. Connecting frame; 3. Depth-adjustable flat ground structure; 4. Adjustable claw rake structure; 5. Rotating roller; 301. Fixed housing; 302. Rotating rod; 303. Rotating knob; 304. Shaft retainer; 305. Rotating gear; 306. Lifting rack; 307. Connecting column; 308. Spring seat; 309. Flat ground scraper; 401. Fixed connecting plate; 402. Rotating connecting block; 403. Adjusting screw; 404. Adjusting knob; 405. Connecting connecting plate; 406. Connecting rotating rod; 407. Rotating claw rake. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] For an example, please refer to... Figure 1-4 This utility model provides a technical solution:

[0024] A grader includes a towing frame 1, a connecting frame 2 connected to the towing frame 1, a depth-adjustable leveling structure 3 connected to the connecting frame 2, an adjustable claw rake structure 4 connected to the connecting frame 2, and a rotating roller 5 connected to the bottom of the connecting frame 2.

[0025] In this embodiment, reference Figure 1 , Figure 2 and Figure 3 The depth-adjustable flat structure 3 includes two sets of fixed housings 301, which are connected to the end face of the connecting frame 2. A rotating rod 302 is connected to the fixed housing 301, and a rotating knob 303 is connected to one end of the rotating rod 302. A shaft retainer 304 is connected to the side wall of the fixed housing 301 and to the cylindrical surface of the rotating rod 302. A rotating gear 305 is connected to the side wall of the rotating rod 302 and to the inner cavity of the fixed housing 301. A lifting rack 306 is connected to the side wall of the rotating gear 305. A connecting column 307 is connected to the side wall of the lifting rack 306. A spring seat 308 is connected to the bottom of the connecting column 307 through a connecting plate. Multiple sets of flat scrapers 309 are connected to the bottom of the spring seat 308 through the connecting plate.

[0026] Based on the above structure and the connection relationship of the above structure, by manually rotating the rotating rod 302, the rotating gear 305 is driven to rotate when the rotating rod 302 rotates. When the rotating gear 305 rotates, the lifting rack 306 and the connecting column 307 are driven to move downward. When the connecting column 307 moves downward, the spring seat 308 at the bottom of the connecting column 307 and multiple sets of leveling scrapers 309 are driven to move downward, thereby adjusting the depth of the leveling scrapers 309 into the soil.

[0027] Furthermore, the rotating rod 302 is connected to the side wall of the fixed housing 301 via a bearing seat, wherein the connection between the rotating rod 302 and the bearing seat is a rotatable connection. The fixed housing 301 is provided with a sliding groove corresponding to the connecting column 307, wherein the connection between the connecting column 307 and the sliding groove is a sliding connection. Multiple sets of leveling scrapers 309 are provided, wherein multiple sets of leveling scrapers 309 are staggered and connected to the connecting plate at the bottom of the spring seat 308. By rotating the rotating rod 302, the depth of the leveling scraper 309 into the soil can be adjusted when the rotating rod 302 rotates.

[0028] In this embodiment, reference Figure 1 and Figure 4 The adjustable claw rake structure 4 includes two sets of fixed connecting plates 401, which are connected to the end face of the connecting frame 2. A rotating connecting block 402 is connected between the two sets of fixed connecting plates 401. An adjusting screw 403 is connected to the rotating connecting block 402. An adjusting knob 404 is connected to one end of the adjusting screw 403. A connecting plate 405 is connected to the side wall of the adjusting screw 403. A connecting rotating rod 406 is connected to the side wall of the connecting plate 405. Multiple sets of rotating claw rakes 407 are connected to the side wall of the connecting rod 406.

[0029] Based on the above structure and the connection relationship of the above structure, by manually rotating the adjusting screw 403, the connecting plate 405 is driven to move on the side wall of the adjusting screw 403 when the adjusting screw 403 rotates. When the connecting plate 405 moves on the side wall of the adjusting screw 403, it drives the multiple sets of rotating claw rakes 407 on the connecting rotating rod 406 to rotate, thereby adjusting the depth of the rotating claw rakes 407 into the soil.

[0030] Furthermore, the fixed connecting plate 401 and the rotating connecting block 402 are rotatably connected by a rotating shaft, the adjusting screw 403 and the connecting plate 405 are connected by a threaded connection, the rotating connecting block 402 and the adjusting screw 403 are connected by a bearing, wherein the adjusting screw 403 and the bearing are rotatably connected, and the connecting rotating rod 406 is connected to the bottom of the connecting frame 2 through a bearing seat, wherein the connecting rotating rod 406 and the bearing seat are rotatably connected. When the adjusting screw 403 rotates, the depth of the rotating claw rake 407 into the soil can be adjusted.

[0031] The working process of this utility model is as follows: When using the grader, first connect the traction frame 1 on the device to the traction machine. According to the actual situation during use, manually rotate the rotating rod 302. When the rotating rod 302 rotates, it drives the rotating gear 305 to rotate. When the rotating gear 305 rotates, it drives the lifting rack 306 and the connecting column 307 to move downward. When the connecting column 307 moves downward, it drives the spring seat 308 at the bottom of the connecting column 307 and multiple sets of leveling scrapers 309 to move downward, adjusting the depth of the leveling scrapers 309 into the soil, thereby improving the accuracy of the device when leveling. At the same time, under the action of the spring seat 308, the leveling scrapers 309 can be adaptively leveled, further improving the quality of leveling.

[0032] According to the usage requirements, by manually rotating the adjusting screw 403, the connecting plate 405 is driven to move on the side wall of the adjusting screw 403. When the connecting plate 405 moves on the side wall of the adjusting screw 403, it drives the multiple sets of rotating claw rakes 407 on the connecting rotating rod 406 to rotate, thereby adjusting the depth of the rotating claw rakes 407 into the soil. This allows the device to remove the straw buried in the soil before leveling the land, which is convenient for subsequent planting work.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grader, comprising a tow frame (1), characterized in that: The traction frame (1) is connected to a connecting frame (2), the connecting frame (2) is connected to a depth-adjustable flat ground structure (3), the connecting frame (2) is connected to an adjustable claw structure (4), and the bottom of the connecting frame (2) is connected to a rotating roller (5). The depth-adjustable flat structure (3) includes two sets of fixed housings (301), which are connected to the end face of the connecting frame (2). A rotating rod (302) is connected to each fixed housing (301), and a rotating knob (303) is connected to one end of each rotating rod (302). A shaft retainer (304) is connected to the side wall of the fixed housing (301) and to the cylindrical surface of the rotating rod (302). A rotating gear (305) is connected to the side wall of the fixed housing (302) and inside the cavity of the fixed housing (301). A lifting rack (306) is connected to the side wall of the rotating gear (305). A connecting column (307) is connected to the side wall of the lifting rack (306). A spring seat (308) is connected to the bottom of the connecting column (307) through a connecting plate. A plurality of flat scrapers (309) are connected to the bottom of the spring seat (308) through a connecting plate.

2. A grader according to claim 1, characterized in that: The adjustable claw structure (4) includes two sets of fixed connecting plates (401), which are connected to the end face of the connecting frame (2). A rotating connecting block (402) is connected between the two sets of fixed connecting plates (401). An adjusting screw (403) is connected to the rotating connecting block (402). An adjusting knob (404) is connected to one end of the adjusting screw (403). A connecting plate (405) is connected to the side wall of the adjusting screw (403). A connecting rotating rod (406) is connected to the side wall of the connecting plate (405). Multiple sets of rotating claws (407) are connected to the side wall of the connecting rotating rod (406).

3. A grader according to claim 2, characterized in that: The rotating rod (302) is connected to the side wall of the fixed housing (301) through a bearing seat, wherein the rotating rod (302) and the bearing seat are connected by a rotatable connection.

4. A grader according to claim 2, characterized in that: The fixed housing (301) is provided with a sliding groove corresponding to the connecting column (307), wherein the connecting column (307) and the sliding groove are connected by a sliding connection.

5. A grader according to claim 2, characterized in that: The leveling scraper (309) is provided in multiple sets, and the multiple sets of leveling scrapers (309) are connected alternately on the connecting plate at the bottom of the spring seat (308).

6. A grader according to claim 2, characterized in that: The fixed connecting plate (401) and the rotating connecting block (402) are rotatably connected by a rotating shaft, and the adjusting screw (403) and the connecting plate (405) are connected by a threaded connection.

7. A grader according to claim 2, characterized in that: The rotating connecting block (402) and the adjusting screw (403) are connected by a bearing, wherein the adjusting screw (403) and the bearing are connected by a rotating connection.

8. A grader according to claim 2, characterized in that: The connecting rod (406) is connected to the bottom of the connecting frame (2) through a bearing seat, wherein the connection between the connecting rod (406) and the bearing seat is a rotatable connection.

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