Soil compacting roller with adjustable compacting force

Abstract

The utility model discloses a soil compacting roller with adjustable compacting force, and relates to the technical field of seeding machines. The press roller structurally comprises a connecting plate and a press roller support. The connecting plate is rotationally connected with one end of the pressing roller bracket through a pin shaft; two pressing rollers are symmetrically mounted at the other end of the pressing roller bracket; the connecting plate is of a right-angle plate body structure; two first round through holes for mounting and fixing are formed in a horizontal transverse plate part of the connecting plate; and a second round through hole matched with the pin shaft is formed in the corner of the connecting plate. According to the utility model, the position of the sliding sleeve can be conveniently adjusted by rotating the bolt with the handle, so that the stretching or retracting degree of the tension spring is adjusted, and the downward deflection pressure of the suppression roller bracket is accurately controlled. By means of the design, pressing operation is more flexible, different soil conditions and sowing requirements can be met, meanwhile, the stability and reliability of the structure are kept, the efficiency and quality of sowing operation are improved, and remarkable practical value and application prospects are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of seeder technology, and in particular relates to an adjustable soil compaction roller. Background Technology

[0002] In modern agricultural production, seeders are essential tools for improving sowing efficiency and ensuring uniform crop growth. During the sowing process, the degree of soil compaction plays a crucial role in seed germination and growth. Traditional seeders typically use fixed compaction rollers, relying on their own weight to compact the soil. However, this fixed design has several significant drawbacks: due to the large differences in soil hardness and moisture across different regions and types, fixed compaction rollers cannot be adjusted according to specific conditions, resulting in unsatisfactory compaction. For example, on harder soils, a fixed compaction pressure may be insufficient for effective compaction; while on softer soils, excessive compaction pressure may lead to over-compaction, affecting seed growth. Adjusting the compaction pressure of traditional compaction rollers requires changing counterweights of different weights or adjusting the mechanical structure, which is not only time-consuming and labor-intensive but also requires professional operation, increasing labor intensity and operational difficulty. To address these problems, this invention provides an adjustable-pressure soil compaction roller. Utility Model Content

[0003] The purpose of this utility model is to provide a soil compaction roller with adjustable compaction pressure. The roller has an elastic tension adjustment mechanism between the connecting plate and the compaction roller support by combining a bolt with a handle, a sliding sleeve and a tension spring. The compaction pressure of the compaction roller can be adjusted by rotating the bolt with the handle.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to an adjustable soil compaction roller, comprising a connecting plate and a compaction roller bracket; the connecting plate and one end of the compaction roller bracket are rotatably connected by a pin; two compaction rollers are symmetrically installed at the other end of the compaction roller bracket; the connecting plate is a right-angled plate structure; the horizontal part of the connecting plate has two first through holes for installation and fixing; a second through hole that mates with the pin is opened at the corner of the connecting plate; a rectangular guide groove extending to the lower end is opened on one side of the downward vertical rod of the connecting plate; a sliding sleeve is slidably installed on the downward vertical rod of the connecting plate; a bolt with a handle is threaded through the sliding sleeve; at least one tension spring is installed between the sliding sleeve and the compaction roller bracket.

[0006] As a preferred embodiment of this utility model, the sliding sleeve includes a sleeve that slides in cooperation with the outer wall of the vertical rod portion of the connecting plate; a guide block that slides in cooperation with the rectangular guide groove is fixed on the inner wall of the sleeve; a threaded through hole is provided on the guide block for threaded connection with the shank bolt, and the end of the shank bolt abuts against the inner top surface of the rectangular guide groove after passing through the threaded through hole; a first single lug that is engaged with the tension spring is fixed on the outer wall of the sleeve.

[0007] As a preferred embodiment of this utility model, the lower end of the downward vertical rod of the connecting plate is provided with a third through hole that penetrates the rectangular guide groove; a limit rod is inserted and fixed into the third through hole.

[0008] As a preferred embodiment of this utility model, the press roller bracket has an L-shaped structure; the connection end between the press roller bracket and the connecting plate is provided with double lugs; and two rows of second lugs are fixed on the lower surface of the press roller bracket near the connecting plate, which are connected to the tension spring.

[0009] As a preferred embodiment of this utility model, the shank bolt is further threaded with two nuts, which are respectively positioned above and below the guide block.

[0010] This utility model has the following beneficial effects:

[0011] 1. This utility model utilizes a combination of a bolt with a handle, a sliding sleeve, and a tension spring to form an adjustment mechanism for the elastic tension between the connecting plate and the press roller bracket. By rotating the bolt with the handle, the position of the sliding sleeve can be easily adjusted, thereby adjusting the stretching or retraction of the tension spring and achieving precise control over the downward deflection pressure of the press roller bracket. This design makes the pressing operation more flexible and adaptable to different soil conditions and sowing needs.

[0012] 2. By adopting a threaded connection method, users can easily adjust the pressure by rotating the bolt with a handle, without using additional tools or performing complicated operations.

[0013] 3. The pressing pressure of the press roller of this utility model is adjustable. This press roller can be used for different crop planting and soil types, which improves the versatility and adaptability of the seeder. The use of two nuts increases the stability of the threaded connection between the shank bolt and the sliding sleeve, reduces the impact of vibration on the connection position, and ensures the stability of the pressing pressure of the press roller.

[0014] 4. The structure of this utility model is relatively simple, which is easy to install on a seeder and facilitates daily inspection and maintenance, through the combination of connecting plate, press roller bracket, pin shaft, press roller, sliding sleeve, bolt with handle and tension spring.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the adjustable soil compaction roller of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the connecting plate.

[0019] Figure 3 This is a schematic diagram of the structure of the press roller support.

[0020] Figure 4 This is a schematic diagram of the sliding sleeve.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1-Connecting plate, 2-Pressure roller bracket, 3-Pin shaft, 4-Pressure roller, 5-Sliding sleeve, 6-Handled bolt, 7-Tension spring, 8-Limiting rod, 11-First through hole, 12-Second through hole, 13-Rectangular guide groove, 14-Third through hole, 21-Double lugs, 22-Second lug (single lug), 51-Sleeve, 52-Guide block, 53-Threaded through hole, 54-First single lug. 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 scope of protection of the present utility model. Specific Implementation Example 1:

[0025] Please see Figure 1-4 As shown, this utility model is a soil compaction roller with adjustable compaction pressure, including a connecting plate 1 and a compaction roller bracket 2. The connecting plate 1 and one end of the compaction roller bracket 2 are rotatably connected by a pin 3. Two compaction rollers 4 are symmetrically installed at the other end of the compaction roller bracket 2.

[0026] The connecting plate 1 is a right-angled plate structure. Two first through holes 11 are provided on the horizontal section of the connecting plate 1 for mounting and fixing. A second through hole 12 is provided at the corner of the connecting plate 1 to mate with the pin 3. The connecting plate 1 is mounted on the seeder using two bolts passing through the two first through holes 11.

[0027] A rectangular guide groove 13 extending to the lower end of the vertical rod portion of the connecting plate 1 is provided on one side. A sliding sleeve 5 is slidably mounted on the vertical rod portion of the connecting plate 1. A bolt with a handle 6 is threaded through the sliding sleeve 5. At least one tension spring 7 is installed between the sliding sleeve 5 and the press roller bracket 2. The sliding sleeve 5 includes a sleeve 51 that slides against the outer wall of the vertical rod portion of the connecting plate 1. A guide block 52 that slides against the rectangular guide groove 13 is fixed to the inner wall of the sleeve 51. A threaded through hole 53 is provided on the guide block 52 that is threaded to the bolt with a handle 6, and the end of the bolt with a handle 6 abuts against the inner top surface of the rectangular guide groove 13 after passing through the threaded through hole 53. A first single lug 54 that engages with the tension spring 7 is fixed to the outer wall of the sleeve 51. The combination of the shank bolt 6, the sliding sleeve 5, and the tension spring 7 constitutes the elastic tension adjustment mechanism between the connecting plate 1 and the press roller bracket 2. When adjusting the downward deflection pressure of the press roller bracket 2, it is only necessary to rotate the shank bolt 6 to drive the sliding sleeve 5 to move up and down, and adjust the tension spring 7 to stretch or retract. The adjustment process is quick, convenient, and flexible.

[0028] To prevent the sliding sleeve 5 from detaching from the connecting plate 1 and becoming ineffective when the tension spring 7 slides downwards under gravity due to the shank bolt 6 and the sliding sleeve 5, a third through hole 14 with a rectangular guide groove 13 is provided at the lower end of the downward-facing vertical rod of the connecting plate 1. A limit rod 8 is inserted and fixed into the third through hole 14, and the connecting plate 1 limits the sliding sleeve 5, effectively preventing the elastic tension adjustment mechanism from failing.

[0029] To reduce interference between multiple tension springs 7 when mounted on the press roller bracket 2, the press roller bracket 2 is L-shaped. Double lugs 21 are provided at the connection end between the press roller bracket 2 and the connecting plate 1. Two rows of second lugs 22, which are attached to the tension springs 7, are fixed to the lower surface of the press roller bracket 2 near the connecting plate 1. The use of two rows of second lugs 22 for mounting the tension springs 7 facilitates staggered mounting and installation, preventing interference between them.

[0030] To reduce the impact of vibration on the stability of the threaded connection between the shank bolt 6 and the sliding sleeve 5, two nuts are threaded onto the shank bolt 6, positioned above and below the guide block 52 respectively. When adjusting the shank bolt 6, first loosen the two nuts, then rotate the shank bolt 6 to drive the sliding sleeve 5 into position, and then move the two nuts back towards the sliding sleeve 5 to stabilize the relative position of the shank bolt 6 and the sliding sleeve 5, thus ensuring the stability of the pressing pressure of the press roller.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A soil compaction roller with adjustable compaction pressure, characterized in that: It includes a connecting plate (1) and a press roller bracket (2); the connecting plate (1) and one end of the press roller bracket (2) are rotatably connected by a pin (3); two press rollers (4) are symmetrically installed at the other end of the press roller bracket (2). The connecting plate (1) has a right-angle plate structure; the horizontal plate of the connecting plate (1) has two first through holes (11) for installation and fixing; the corner of the connecting plate (1) has a second through hole (12) that cooperates with the pin (3). A rectangular guide groove (13) extending to the lower end is provided on one side of the downward vertical rod of the connecting plate (1); a sliding sleeve (5) is slidably installed on the downward vertical rod of the connecting plate (1); a shank bolt (6) is threaded through the sliding sleeve (5). At least one tension spring (7) is installed between the sliding sleeve (5) and the press roller bracket (2).

2. The adjustable soil compaction roller according to claim 1, characterized in that, The sliding sleeve (5) includes a sleeve (51) that slides with the outer wall of the vertical rod portion of the connecting plate (1) downward; the inner wall of the sleeve (51) is fixed with a guide block (52) that slides with the rectangular guide groove (13); the guide block (52) is provided with a threaded through hole (53) that is threadedly connected to the shank bolt (6), and the end of the shank bolt (6) abuts against the inner top surface of the rectangular guide groove (13) after passing through the threaded through hole (53); the outer wall of the sleeve (51) is fixed with a first single lug (54) that is hooked to the tension spring (7).

3. The adjustable soil compaction roller according to claim 2, characterized in that, The lower end of the vertical rod of the connecting plate (1) is provided with a third through hole (14) that passes through the rectangular guide groove (13); a limit rod (8) is inserted and fixed in the third through hole (14).

4. The adjustable soil compaction roller according to claim 1, characterized in that, The press roller bracket (2) has an L-shaped structure; the connection end of the press roller bracket (2) and the connecting plate (1) is provided with double ears (21); the lower surface of the press roller bracket (2) near the connecting plate (1) is fixed with two rows of second single ears (22) that are connected to the tension spring (7).

5. The adjustable soil compaction roller according to claim 3, characterized in that, The shank bolt (6) is also threaded with two nuts, which are respectively positioned above and below the guide block (52).

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