A high-speed trailed disc harrow

Abstract

The utility model relates to agricultural machinery technical field, concretely relates to a high -speed disc harrow of traction type. Its including tractor, one end fixedly connected with installation frame of tractor, the one side of installation frame is provided with land roller, installation frame includes at least two installation rods, the bottom of installation frame is provided with harrow piece mechanism. The device reduces the clearance between disc harrow piece through two groups of staggered harrow piece groups, makes the primary broken soil block be followed staggered harrow piece secondary broken, reduces the remaining of unbroken soil block, and the concave surface of two groups of disc harrow piece faces opposite and is installed obliquely, and the broken soil block is refined to another group of cutter edge through the concave surface, and the land roller is combined to realize efficient soil breaking and land leveling, the stress of installation rod is dispersed through the installation of rhombus connecting piece and fixed bolt, and the rod body is avoided in hard soil operation and breaks, and the harrow piece spacing can be adjusted through the adjustment bolt pressure tightness along the installation rod translation connecting piece, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a traction-type high-speed disc harrow. Background Technology

[0002] A disc harrow cuts into the soil with its concave discs, severing grass roots and crop residues, and turning over clods to loosen, break up, and level the land. It can also mix surface fertilizers or pesticides with the topsoil and can be used for stubble removal and seed covering.

[0003] During operation, the disc harrow's blades penetrate the soil and, through their concave surfaces, lift the soil, thus breaking it up. However, when the soil is dry, it can become compacted, resulting in large clods in the field. While the blades can break up some of these clods, gaps between the blades allow larger clods to pass through, reducing the disc harrow's effectiveness. Simply reducing the distance between the blades can decrease the size of the clods passing through the gaps, but this also makes it easier for clods to clog the gaps, hindering the disc harrow's normal operation. Utility Model Content

[0004] This utility model provides a traction-type high-speed disc rake, which solves the problems in the background art mentioned above, namely:

[0005] The traditional disc harrow has gaps between its blades, which allow some soil clods to pass through without being broken up during the turning process, thus reducing the disc harrow's soil breaking effect.

[0006] To achieve the above objectives, the traction-type high-speed disc rake includes a traction machine, one end of which is fixedly connected to a mounting frame. A leveling roller is provided on one side of the mounting frame. The mounting frame includes at least two mounting rods. A rake blade mechanism is provided at the bottom of the mounting frame. The rake blade mechanism includes at least two sets of rake blades, which are respectively arranged outside the two mounting rods. Each rake blade set includes a plurality of disc rake blades.

[0007] The disc rake blades in both sets of rake blades are inclinedly arranged at the bottom of the mounting rod, and the concave surfaces of the disc rake blades in the two sets of rake blades face opposite directions.

[0008] In the above technical solution, by staggering the disc rake blades in the two sets of rake blades, the gaps between the disc rake blades in the forward direction can be reduced without changing the distance between the disc rake blades in a single rake blade set. When some soil clods pass through the gaps between the disc rake blades in the first set of rake blades, they will be immediately broken by the disc rake blades in the next set of rake blades, thereby improving the overall soil breaking effect of the device.

[0009] In another technical solution, the rake mechanism further includes several connecting components, and the disc rake blade is fixedly connected to the mounting rod through the connecting components; the connecting components include two connecting pieces, and several fixing bolts are threaded through the two connecting pieces; the overall shape of the two connecting pieces is rhomboid; one end of one of the connecting pieces is fixedly connected to a mounting plate, and the disc rake blade is rotatably connected to the mounting plate; at least four pads are provided on the inner wall of the two connecting pieces, and the pads are in contact with the mounting rod.

[0010] In this technical solution, the connecting assembly uses a diamond-shaped connecting plate in conjunction with fixing bolts. This disperses the force on the mounting rod to the inclined surface of the connecting plate, reducing stress concentration and preventing the mounting rod from breaking due to excessive force in hard soil. By adjusting the tightness of the fixing bolts, the connecting plate can be moved along the mounting rod to adjust the spacing of the disc rake blades. The operation is simple and requires no disassembly. The design of the pad that fits snugly against the mounting rod enhances connection stability, ensuring that the disc rake blades maintain their preset position during operation, further improving the reliability and adaptability of the device.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. In this towed high-speed disc harrow, the discs in two sets of harrow blades are staggered, reducing the gaps between multiple discs in the forward direction. This allows the initially broken soil clods to be further broken by the staggered discs, effectively reducing the number of unbroken soil clods passing through the gaps. Furthermore, the concave surfaces of the two sets of discs face opposite directions and are inclined at the bottom of the mounting rod. After one set of harrows breaks the soil clods, its concave surface lifts the soil clods to the blades of the other set of harrows, achieving secondary breaking and significantly improving the efficiency and uniformity of soil breaking. At the same time, the leveling roller works with the harrow sets to level the land, further optimizing the working effect.

[0013] 2. In this towed high-speed disc rake, the connecting component uses a diamond-shaped connecting plate and a fixing bolt to distribute the force on the mounting rod to the inclined surface of the connecting plate, reducing stress concentration and preventing the mounting rod from breaking due to excessive force in hard soil. By adjusting the tightness of the fixing bolt, the connecting plate can be moved along the mounting rod to adjust the spacing of the disc rake blades. The operation is simple and does not require disassembly of parts. Furthermore, the design of the pad and the mounting rod fits together to enhance the connection stability and ensure that the disc rake blades maintain the preset position during operation, further improving the reliability and adaptability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the rake mechanism in this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the two rake blade groups in this utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of the connecting component and the disc rake blade in this utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Traction machine;

[0020] 2. Mounting frame; 21. Mounting rod;

[0021] 3. Ground leveling roller;

[0022] 4. Rake mechanism; 41. Rake assembly; 42. Connecting component; 421. Connecting plate; 422. Pad; 423. Mounting plate; 424. Fixing bolt; 43. Disc rake. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Currently, traditional disc harrows have gaps between their blades, allowing some soil clods to pass through without being broken up during tilling, thus reducing the harrow's soil-breaking efficiency. This invention provides a towed high-speed disc harrow. (See attached image.) Figure 1 - Figure 3 As shown, it includes a traction machine 1, one end of which is fixedly connected to an installation frame 2. A leveling roller 3 is provided on one side of the installation frame 2. The installation frame 2 includes at least two installation rods 21. A rake mechanism 4 is provided at the bottom of the installation frame 2. The rake mechanism 4 includes at least two sets of rake blades 41. The two sets of rake blades 41 are respectively provided outside the two installation rods 21. The rake blades 41 include several disc rake blades 43.

[0025] refer to Figure 2 As shown, by staggering the disc rake blades 43 in the two sets of rake blade groups 41, the gaps between the disc rake blades 43 in the forward direction can be reduced without changing the distance between the disc rake blades 43 in one set of rake blade groups 41. When some soil clods pass through the gaps between the disc rake blades 43 in the first set of rake blade groups 41, they will be immediately broken by the disc rake blades 43 in the next set of rake blade groups 41, thereby improving the overall soil breaking effect of the device.

[0026] During implementation, the disc rake blades 43 in both sets of rake blade groups 41 are inclinedly set at the bottom of the mounting rod 21, and the concave surfaces of the disc rake blades 43 in the two sets of rake blade groups 41 face opposite directions. During the tillage process, after the disc rake blades 43 in the rake blade group 41 on the side away from the tillage roller 3 has finished breaking up the soil, the soil clods will be lifted by their concave surfaces and enter the disc rake blades 43 of the other set of rake blade groups 41. Since the two sets of disc rake blades 43 are staggered, most of the soil clods that are lifted up can directly contact the blade edge of the next set of disc rake blades 43, achieving a finer crushing effect.

[0027] In addition, refer to Figure 2 — Figure 4 As shown, the rake mechanism 4 also includes several connecting components 42, and the disc rake 43 is fixedly connected to the mounting rod 21 through the connecting components 42;

[0028] Specifically, the connecting assembly 42 includes two connecting pieces 421, with several fixing bolts 424 threaded between them. The overall shape of the two connecting pieces 421 is rhomboid. One end of one of the connecting pieces 421 is fixedly connected to a mounting plate 423. The disc rake blades 43 are rotatably connected to the mounting plate 423. When implemented in this way, in the forward direction of the device, the force on the straight surface of the mounting rod 21 can be dispersed to two inclined surfaces by the rhomboid connecting pieces 421, thereby reducing the stress on the mounting rod 21 during the soil crushing process and preventing the multiple disc rake blades 43 from exerting excessive force on the mounting rod 21 and causing it to break when working in areas with harder soil.

[0029] Furthermore, at least four pads 422 are provided on the inner walls of the two connecting plates 421. The pads 422 fit against the mounting rod 21. By rotating the fixing bolts 424, the pressure of the connecting plates 421 on the pads 422 can be adjusted. In this way, the user can first put all the connecting plates 421 on the outside of the mounting rod 21, and then move the connecting plates 421 according to the soil crushing requirements to adjust the distance between the disc rake blades 43, which improves the ease of operation for adjusting the spacing of the disc rake blades 43.

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

[0031] First, the user mates the two connecting pieces 421 onto the outside of the mounting rod 21, and then fixes the two connecting pieces 421 with the fixing bolts 424. Repeat the above operation until all the disc rake blades 43 are installed on the mounting rod 21. Then, according to the soil breaking requirements, the user moves a set of fixed connecting pieces 421 along the mounting rod 21 until all the disc rake blades 43 are in the right position. Finally, the user tightens the fixing bolts 424 again to ensure that the pad 422 is pressed into the mounting rod 21 to complete the overall installation.

[0032] During the soil breaking process, a set of disc rakes 43, located away from the leveling roller 3, first breaks up the soil as a whole. During this process, the broken soil clods are lifted up by the set of disc rakes 43 and sent to the next set of disc rakes 43 for further breaking. In the initial breaking process, soil clods that pass through the gaps between the first set of disc rakes 43 will also be broken up by the next set of disc rakes 43 to avoid large soil clods remaining after the breaking operation, thus improving the soil breaking effect of the device. Finally, the leveling roller 3 rotates by friction or other driving equipment to level the ground.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A traction-type high-speed disc rake, comprising a traction machine (1), characterized in that: One end of the traction machine (1) is fixedly connected to the mounting frame (2), and a leveling roller (3) is provided on one side of the mounting frame (2). The mounting frame (2) includes at least two mounting rods (21), and a rake mechanism (4) is provided at the bottom of the mounting frame (2). The rake mechanism (4) includes at least two sets of rake blades (41), and the two sets of rake blades (41) are respectively provided outside the two mounting rods (21). The rake blades (41) include several disc rake blades (43). The disc rake blades (43) in the two sets of rake blade groups (41) are arranged in an alternating manner to reduce the gap between multiple disc rake blades (43) in the forward direction. During the tillage process, after the rake blade group (41) on the side away from the tillage roller (3) has completed the soil breaking, the soil clods will be lifted up and further broken by the disc rake blades (43) in the other set of rake blade groups (41).

2. The towed high-speed disc rake according to claim 1, characterized in that: The disc rake blades (43) in both sets of rake blade groups (41) are inclinedly arranged at the bottom of the mounting rod (21), and the concave surfaces of the disc rake blades (43) in the two sets of rake blade groups (41) face opposite directions.

3. The towed high-speed disc rake according to claim 1, characterized in that: The rake mechanism (4) also includes several connecting components (42), and the disc rake (43) is fixedly connected to the mounting rod (21) through the connecting components (42).

4. The towed high-speed disc rake according to claim 3, characterized in that: The connecting assembly (42) includes two connecting pieces (421), and a plurality of fixing bolts (424) are threadedly connected between the two connecting pieces (421).

5. The towed high-speed disc rake according to claim 4, characterized in that: The overall shape of the two connecting pieces (421) is rhomboid.

6. The towed high-speed disc rake according to claim 5, characterized in that: One end of one of the connecting pieces (421) is fixedly connected to a mounting plate (423), and the disc rake (43) is rotatably connected to the mounting plate (423).

7. The towed high-speed disc rake according to claim 6, characterized in that: The inner walls of the two connecting pieces (421) are provided with at least four pads (422), which are in contact with the mounting rod (21).

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