CN107409565B - A transplanting mechanism and device for agricultural machinery - Google Patents

Abstract

The invention discloses a transplanting mechanism and a transplanting device for agricultural machinery, which solve the problems of easy film tearing and film scraping of the transplanting mechanism in the prior art and have the beneficial effects of realizing deep transplanting, and the scheme is as follows: the transplanting mechanism for the agricultural machinery comprises a double-crank mechanism and a crank sliding block mechanism, wherein the double-crank mechanism comprises a first crank and a second crank, and the first crank and the second crank are respectively connected with a first connecting rod through a revolute pair; the crank-slider mechanism comprises a third crank and a slider, a second connecting rod is arranged between the third crank and the slider, the slider is connected with the transplanting duckbill, and the slider is connected with the first connecting rod through a moving pair; the first crank, the second crank and the third crank are respectively arranged on the frame through revolute pairs, the first crank and the third crank are driving parts, and the steering directions of the first crank and the third crank are consistent.

Description

A transplanting mechanism and device for agricultural machinery

technical field

The invention relates to agricultural machinery, in particular to a transplanting mechanism and device for agricultural machinery.

Background technique

Transplanting technology can effectively avoid crops being affected by disastrous climates such as low temperature in early spring, frost, and hail. Especially, transplanting on mulch has the advantages of heat preservation, water retention, and pest and weed control. At present, the machines suitable for transplanting on film mainly include hanging cup type transplanting machine, water wheel type transplanting machine and planetary gear system type transplanting machine, but in terms of development and use, there is still a big gap with foreign countries. During the planting process, the hole produced by the transplanting machine is relatively large, which is prone to the problem of tearing and scraping the film, which makes the film useless and fails to achieve the purpose of transplanting on the film. The fundamental reason is that the traditional transplanting mechanism cannot realize small hole transplantation plant.

In order to solve the above technical problems, it is necessary to provide a novel transplanting mechanism.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a transplanting mechanism for agricultural machinery. The mechanism uses a double crank mechanism to cooperate with a crank slider mechanism, and has a simple structure and stable operation. Realize deep transplanting.

A specific scheme of a transplanting mechanism for agricultural machinery is as follows:

A transplanting mechanism for agricultural machinery, comprising a double-crank mechanism and a crank-slider mechanism,

The double crank mechanism includes a first crank and a second crank, and the first crank and the second crank are respectively connected to the first connecting rod through a rotating pair;

The crank-slider mechanism includes a third crank and a slider, a second connecting rod is arranged between the third crank and the slider, the slider is connected to the transplanted duckbill, and the slider is connected to the first connecting rod through a moving pair;

The first crank, the second crank and the third crank are respectively arranged on the frame through the rotating pair, the first crank and the third crank are both active parts, and the rotation of the two is consistent, and the speed is also the same, the first crank and the third crank are the same The third crank acts as the active driving part, the first crank drives the planar quadrilateral mechanism to do regular cycloidal motion, and the third crank acts as the active driving part to drive the crank slider mechanism to perform linear motion, since the slider and the first connecting rod are connected through a moving pair, Driven by the first crank and the third crank, the duckbill of the pump makes a narrow cycloidal movement to realize transplanting in small holes.

The first crank and the second crank are arranged at the same length and in parallel, and the first crank and the second crank are arranged at the same height on the frame.

The double crank mechanism is a regular parallelogram mechanism, and the setting position of the third crank is higher than that of the first crank.

The second connecting rod is set obliquely under normal conditions. In order to ensure the movement of the transplanted duckbill, the distance between the second connecting rod and the third crank connection end and the double crank mechanism is greater than the distance between the second connecting rod and the slider connection end. distance from the crank mechanism.

In order to overcome the deficiencies in the prior art, the present invention also provides a transplanting device, including the above-mentioned transplanting mechanism for agricultural machinery, and a water injector is also arranged on the frame, and the transplanted The seedlings are irrigated, the water injector is connected with the water tank, a water level sensor is arranged in the water tank, the water level sensor is connected with the controller, and the controller is a PLC controller with a display screen.

Wherein, the water injector is arranged above the double crank mechanism.

The transplanting mechanism includes a combination of a parallelogram mechanism and a crank slider mechanism. The reason for the combination is that the transplanting cycloid formed by the parallelogram mechanism alone is wider, which is easy to cause tearing and scraping of the film. The transplanting cycloid is advanced by the unit. The speed is fitted by the rotation speed of the lowering plant. Under the condition that the forward speed of the unit is determined, the method of reducing the width of the cycloid can increase the vertical downward speed of the lowering duckbill; the separate crank slider mechanism can only move along the Move in one direction, through the combination of parallelogram mechanism and crank slider mechanism, connect the slider and the first connecting rod through the moving pair, increase the vertical downward speed of the planting duckbill, narrow the transplanting cycloid, and realize the small hole opening transplant.

The invention also provides a method for transplanting seedlings, using the above-mentioned transplanting mechanism for agricultural machinery.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, through the cooperation of the double crank mechanism and the crank slider mechanism, the transplanted duckbill is driven to perform a reciprocating movement. The inclined setting of the pole can drive the transplanting duckbill to realize deep transplanting.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Fig. 1 is a schematic structural diagram of the transplanting mechanism;

Fig. 2 Transplanting mechanism motion trajectory diagram one;

Figure 3 is an enlarged view of part of the track in Figure 2;

Fig. 4 is the moving track figure two of transplanting mechanism;

Fig. 5 is the moving track figure three of transplanting mechanism;

In the figure: 1 is the first crank, 2 is the first connecting rod, 3 is the second crank, 4 is the third crank, 5 is the second connecting rod, 6 is the slider, 7 is the duckbill; A is the rotation A pair, B is a moving pair, C is a narrow cycloid trajectory formed by the combined movement of a parallelogram mechanism and a crank-slider mechanism, and D is a wide trajectory formed by the movement of a traditional parallelogram mechanism.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a transplanting mechanism and device for agricultural machinery.

In a typical implementation of the present application, as shown in Figure 1, a transplanting mechanism for agricultural machinery includes a double crank mechanism and a crank slider mechanism,

The double crank mechanism includes a first crank 1 and a second crank 3, and the first crank 1 and the second crank 3 are respectively connected to the first connecting rod 2 through a rotating pair;

The slider crank mechanism comprises a third crank 4 and a slide block 6, a second connecting rod 5 is arranged between the third crank 4 and the slide block 6, the slide block 6 is connected with the transplanting duckbill 7, and the slide block 6 is connected with the first connecting rod. Rod 2 is connected by a mobile pair;

The first crank 1, the second crank 3 and the third crank 4 are respectively arranged on the frame through the rotating pair, the first crank 1 and the third crank 4 are both active parts, and the rotation of the two is consistent, and the speed is also the same , the first crank 1 and the third crank 4 act as active driving parts and move at the same time, thereby driving the movement of the first connecting rod 2 and the second connecting rod 5, and the movement of the slider 6 is controlled by the first connecting rod 2, thus Realize transplanting.

The first crank 1 and the second crank 3 are equal in length and arranged in parallel.

The double crank mechanism is a regular parallelogram mechanism, and the third crank 4 is set at a higher position than the first crank 1 .

The second connecting rod 5 is installed obliquely under normal conditions, and the distance between the connecting end of the second connecting rod 5 and the third crank 4 and the double crank mechanism is greater than the distance between the connecting end of the second connecting rod 5 and the slider 6 and the double crank mechanism .

Through the cooperation of the double crank mechanism and the crank slider mechanism, the transplanted duckbill is driven to perform a reciprocating movement. The transplanted duckbill track is a continuous narrow cycloidal movement, as shown in Figure 2-Figure 5. The membrane mouth is small, and the inclined setting of the second connecting rod can drive the transplanting duckbill to realize deep transplanting.

The cycloids shown in Figures 2 to 5 mainly illustrate that the cycloid formed by the combination of the parallelogram mechanism and the slider crank mechanism is narrower, and it is easier to achieve deep transplanting. Narrow and long; the trajectory curve formed by the traditional parallelogram mechanism is wide and short, such as the trajectory indicated by D in Figure 2, which is not conducive to deep transplanting, and it is easy to tear and scrape the film; Figure 4 and Figure 5 illustrate the parallelogram mechanism The continuous motion process of the combined mechanism with the slider crank mechanism.

In order to overcome the deficiencies in the prior art, the present invention also provides a transplanting device, including the above-mentioned transplanting mechanism for agricultural machinery, and a water injector is also arranged on the frame, and the transplanted The seedlings are irrigated, the water injector is connected with the water tank, a water level sensor is arranged in the water tank, the water level sensor is connected with the controller, and the controller is a PLC controller with a display screen.

Wherein, the water injector is arranged above the double crank mechanism.

In addition, the present invention also provides a method for transplanting seedlings, using the above-mentioned transplanting mechanism for agricultural machinery.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (5)

1. A transplanting mechanism for agricultural machinery, characterized in that it comprises a double crank mechanism and a slider crank mechanism, The double crank mechanism includes a first crank and a second crank, and the first crank and the second crank are respectively connected to the first connecting rod through a rotating pair; The crank-slider mechanism includes a third crank and a slider, a second connecting rod is arranged between the third crank and the slider, the slider is connected to the transplanted duckbill, and the slider is connected to the first connecting rod through a moving pair; The first crank, the second crank and the third crank are respectively arranged on the frame through the rotating pair, the first crank and the third crank are both active parts, and the rotation of the two is consistent; The first crank is equal in length to the second crank and arranged in parallel; The double crank mechanism is a positive parallelogram mechanism, and the setting position of the third crank is higher than the setting position of the first crank; The second connecting rod is arranged obliquely under normal conditions, and the distance between the connecting end of the second connecting rod and the third crank and the double crank mechanism is greater than the distance between the connecting end of the second connecting rod and the slider and the double crank mechanism. 2. A transplanting device, characterized in that it comprises the agricultural machinery transplanting mechanism according to claim 1, and a water injector is also arranged on the frame. 3. The transplanting device according to claim 2, wherein the water injector is arranged above the double crank mechanism. 4. A transplanting device according to claim 2, wherein the water injector is connected to a water tank, a water level sensor is arranged in the water tank, and the water level sensor is connected to a controller. 5. A method for transplanting seedlings, characterized in that, adopts a transplanting mechanism for agricultural machinery according to claim 1.

Images