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BR-102024018352-A2 - Pressure adjustment device for agricultural equipment, and agricultural equipment.

BR102024018352A2BR 102024018352 A2BR102024018352 A2BR 102024018352A2BR-102024018352-A2

Abstract

The present invention relates to a pressure adjustment device (1) for agricultural equipment (2) comprising a rod (10) having a shaft section (11) for receiving a compression spring (20) and a connection section (12) for pivoting to a cylinder (30), the shaft section (11) also having a guide (40) and at least one adjustment nut (50), the guide (40) being associated with a first structural projection (2A) of the equipment, the connection section (12) being associated with a second structural projection (2B) of the agricultural equipment located close to the first structural projection (2A).

Inventors

  • JOSÉ LUIZ ALBERTO MARCHESAN
  • CARLOS CESAR GALHARDI

Assignees

  • MARCHESAN IMPLEMENTOS E MÁQUINAS AGRÍCOLAS TATU S.A.

Dates

Publication Date
20260317
Application Date
20240905

Claims (7)

  1. 1. Pressure adjustment device (1) for agricultural equipment (2), characterized in that it comprises a rod (10) having a shaft section (11) for receiving a compression spring (20) and a connection section (12) for pivoting to a cylinder (30), the shaft section (11) also having a guide (40) and at least one adjustment nut (50), the guide (40) being associated with a first structural projection (2A) of the equipment, the connection section (12) being associated with a second structural projection (2B) of the agricultural equipment located close to the first structural projection (2A).
  2. 2. Pressure adjustment device (1) for agricultural equipment (2), according to claim 1, characterized in that the first and second structural projections (2A, 2B) are disposed in a side section (2”) of the agricultural equipment (2), the cylinder (30) being associated with a third structural projection (2C) disposed in a central section (2’) of the agricultural equipment (2).
  3. 3. Pressure adjustment device (1) for agricultural equipment (2), according to any of the preceding claims, characterized in that the shaft section (11) of the rod (10) comprises a smooth portion (11’) for receiving the pressure spring (20) and a threaded portion (11”) for receiving the adjustment nut (50).
  4. 4. Pressure adjustment device (1) for agricultural equipment (2), according to any of the preceding claims, characterized in that it comprises a sleeve (60) disposed between the compression spring (20) and the adjustment nut (50) and inserted inside the guide (40).
  5. 5. Pressure adjustment device (1) for agricultural equipment (2), according to any of the preceding claims, characterized in that the connection section (12) comprises a base (12’) from which extend a pair of projections (12”), the projections being configured to receive a pin (12A) for connecting the connection section (12) to the cylinder (30) and to the second structural projection (2B).
  6. 6. Pressure adjustment device (1) for agricultural equipment (2), according to any of the preceding claims, characterized in that the second structural projection (2B) comprises an oblong hole at its end for receiving the end of the cylinder (30) and the connecting section (12) of the rod (10).
  7. 7. Agricultural equipment (2) characterized in that it comprises a pressure adjustment device (1) as defined in any of the preceding claims.

Description

[001] The present invention relates to a pressure adjustment device for application in agricultural equipment that allows the adjustment of the pressure exerted by the equipment implement as needed. The present invention also relates to equipment comprising said pressure adjustment device. Description of the State of the Art [002] Agricultural equipment for working the soil uses implements, such as knife rollers, to manipulate the soil to create ideal planting conditions. One problem observed in the operation of this equipment is the irregularity of the work performed by the implements depending on the working conditions and the soil. For example, more or less firm soils, the type of vegetation being worked on, or even the desired working speed can influence the resistance experienced by the implements, which can impair the homogeneity of the work performed. [003] The state of the art presents some attempts to solve this problem. For example, document BR202018009713 uses a cylinder containing an internal spring for soil copying during implement operation. However, this solution is difficult to adapt given the mechanical complexity of the elements contained therein, and does not describe adequate mechanisms for adjusting the desired pressure of the implement on the soil. In another example, document BR202022006188 describes a load compensation mechanism that uses a spring to increase the pressure of the implement on the soil, but does not provide means for adjusting this exerted load. Objectives of the Invention [004] A primary objective of the present invention is to provide a pressure adjustment device for application in agricultural equipment that allows adjustment of the pressure exerted by the device on the agricultural implement. [005] A second objective of the present invention is to provide a pressure adjustment device for application in agricultural equipment that is simple to construct and maintain, and can be flexibly applied to existing agricultural equipment. Brief Description of the Invention [006] The present invention relates to a pressure adjustment device for agricultural equipment comprising a rod having a shaft section for receiving a compression spring and a connection section for pivoting to a cylinder, the shaft section also having a guide and at least one adjustment nut, the guide being associated with a first structural projection of the equipment, the connection section being associated with a second structural projection of the agricultural equipment located close to the first structural projection. [007] In one embodiment, the first and second structural projections are arranged in a side section of the agricultural equipment, the cylinder being associated with a third structural projection arranged in a central section of the agricultural equipment. [008] In one embodiment, the shaft section of the rod comprises a smooth portion for receiving the compression spring and a threaded portion for receiving the adjusting nut. [009] In one embodiment, the device comprises a sleeve disposed between the compression spring and the adjusting nut and inserted inside the guide. [0010] In one embodiment, the connecting section comprises a base from which a pair of projections extend, the projections being configured to receive a pin for connecting the connecting section to the cylinder and to the second structural projection. [0011] In one embodiment, the second structural projection comprises an oblong hole at its end for receiving the end of the cylinder and the connecting section of the rod. [0012] The present invention also contemplates agricultural equipment comprising a pressure adjustment device such as the aforementioned one in any of its embodiments. Brief Description of the Drawings [0013] The present invention will now be described in more detail based on an exemplary embodiment shown in the drawings. The figures show: [0014] Figure 1 - is an exploded perspective view of the device of the present invention in a preferred embodiment applied to a structure of agricultural equipment; [0015] Figure 2 - is an exploded perspective view of the device of the present invention in a preferred embodiment; [0016] Figure 3 - is a side view of the device of the present invention in a preferred embodiment applied to a structure of agricultural equipment; and [0017] Figure 4 - is a side view of the device of the present invention in a preferred embodiment applied to a structure of agricultural equipment, including an implement, and with the implement angled to compensate for unevenness in the ground. Detailed Description of the Figures [0018] First, it should be noted that the term “preferred” used here refers to characterizing a particular efficient embodiment of the invention among the multiple possible embodiments. The term “preferred” should not be understood as limiting the possible embodiments of the present invention, that is, it should not be understood as “imperative” or “mandatory” for ca