CN203691909U - Rotary type holing mechanism - Google Patents

Abstract

The utility model relates to the technical field of farming holing devices, in particular to a rotary type holing mechanism. The rotary type holing mechanism is characterized by comprising a driving crank mounted on a rack, wherein the driving crank is hinged with one end of a buried holing rod which is connected with one end of a driven drag rod, the other end of the driven drag rod is mounted on the rack, and a return spring damping is arranged on the driven drag rod; and the driving crank, the buried holing rod, the driven drag rod and the rack are hinged to form a parallel four-bar mechanism. According to the rotary type holing mechanism, the driven rod equipped with the spring damping can further recover the shape of the parallel four-bar mechanism when the buried holing rod is not buried into soil, so that the buried holing rod is buried into the soil perpendicularly, the driven rod equipped with the spring damping can balance part of displacement in the horizontal direction after the buried holing rod is buried into the soil, and the horizontal displacement quantity of the buried rod is reduced; and with the adoption of the rotary type holing mechanism, the film hole size during seeding operation can be reduced, thus, the heat preservation and the wind resistance of a film are higher, and powerful guarantee is provided for increase of crop yield.

Description

A rotary cavitation mechanism

technical field

The utility model relates to the technical field of tillage hole forming devices, in particular to a rotary hole forming mechanism.

Background technique

In the prior art, the cavitation process of the caving mechanism of the tillage equipment during the advancement of the whole machine is: 1) moving downward to form cavitation; 2) moving backward relative to the complete machine while moving downward, so as to ensure Forming and seeding; 3) upward movement back. The size of the membrane hole is an important parameter to measure the quality of the operation. In order to facilitate heat preservation and improve wind resistance, the size of the membrane hole should be as small as possible without affecting the emergence of seedlings; In the process of excavation and excavation, the in-line motion should be realized, that is, vertical entry and vertical excavation, which requires that the entry part of the caving mechanism has a small displacement in the horizontal direction. In the existing four-function rotary rod, the size of the film hole is too large after operation, the film is seriously torn when picking the film, and the heat preservation and wind resistance of the film are poor.

Contents of the invention

The purpose of the utility model is to avoid the shortcomings of the prior art and provide a rotary cavitation mechanism, thereby effectively solving the problems of the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the above-mentioned rotary caving mechanism, which is characterized in that it includes an active crank mounted on the frame, the active crank is connected with the soil-entrying caving rod, and the caving is formed in the soil. The rod is connected to one end of the driven resistance rod, and the other end of the driven resistance rod is installed on the frame, and a return spring is arranged on the driven resistance rod; the driving crank, the hole forming rod, the driven resistance rod and the frame pass Hinged to form a parallel four-bar linkage.

The driving crank makes a rotary motion to drive the hole-entrying rod and the driven resistance rod to rotate.

The beneficial effect of the utility model is: the rotary type caving mechanism, which replaces the original driven rod with a spring damping rod whose length can be changed according to conditions, can reduce the horizontal displacement of the caving rod in the soil. At the same time, the driven rod equipped with spring damping can restore the shape of the parallel four-bar mechanism when the hole forming rod is not in the ground, ensuring that the hole forming rod enters the soil vertically, and the driven rod equipped with spring damping will balance part of the horizontal direction after entering the soil. Displacement, reduce the horizontal displacement of the bar into the soil. It can reduce the membrane pore size during seeding operation, which makes the membrane have higher thermal insulation and wind resistance, and provides a strong guarantee for increasing crop production.

Description of drawings

Fig. 1 is the structural principle schematic diagram of the utility model.

In the figure: 1. Active crank; 2. Cavity-forming rod; 3. Driven resistance rod; 4. Return spring.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figure 1, a kind of rotary type caving mechanism described is characterized in that it includes a driving crank 1 installed on the frame, the driving crank 1 is connected with the soil forming caving rod 2, and the soil caving forming rod 2 is connected with the driven caving rod 2. One end of the resistance bar 3 is connected, and the other end of the driven resistance bar 3 is installed on the frame, and the driven resistance bar 3 is provided with a back-moving spring 4; The frame is hinged to form a parallel four-bar linkage.

Further, the rotating motion of the driving crank drives the hole-entrying rod and the driven resistance rod to rotate.

Said a kind of rotary type hole forming mechanism, the active crank 1 rotates one turn, and the hole forming rod 2 for entering the soil also turns one turn to complete the secondary hole forming and seeding process. During the movement of the whole machine, the hole-entrying rod 2 is always kept perpendicular to the ground. A seed metering device is installed at the upper end of the hole-forming rod 2, and the discharged seeds fall into the cavity at the lower end of the hole-forming rod through the seed guide tube. The seeds fall into the holes under the force of gravity. It replaces the original driven rod with a spring damping rod whose length is variable due to conditions, which can reduce the horizontal displacement of the rod entering the soil and forming a cave. At the same time, the driven rod equipped with spring damping can restore the shape of the parallel four-bar mechanism when the hole forming rod is not in the ground, ensuring that the hole forming rod enters the soil vertically, and the driven rod equipped with spring damping will balance part of the horizontal direction after entering the soil. Displacement, reduce the horizontal displacement of the bar into the soil.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (2)

1. a swinging hole former, it is characterized in that comprising rack-mounted driving crank, driving crank is connected with the cavitation bar that buries, and the cavitation bar that buries is connected with driven drag strut one end, the driven drag strut other end is arranged in frame, on driven drag strut, is provided with back-moving spring; Described driving crank, the cavitation bar that buries, driven drag strut and frame are by hinged formation parallel four-bar linkage.

2. a kind of swinging hole former according to claim 1, is characterized in that: described driving crank is done gyration and driven bury cavitation bar and the revolution of driven drag strut.