CN201905028U - Transplanting mechanism of single-shaft bevel gear transmission inclined wide-narrow row rice transplanter - Google Patents

Abstract

The single-axis bevel gear transmission oblique wide and narrow row rice transplanter splitting mechanism belongs to agricultural machinery; the moving box body and the transmission box casing are fixedly integrated, and the power input shaft of the fixed first bevel gear is fitted in the moving box body. The main transmission shaft of the second bevel gear, the third bevel gear and the fourth bevel gear are fitted in the transmission box casing and the shifting box body, the right power output shaft of the sixth bevel gear and the fifth bevel are fixed The left power output shaft of the gear and the main transmission shaft are vertically fitted in the transmission box housing, the left and right power output shafts are arranged symmetrically with the horizontal plane upwards, and the left and right split-insertion mechanisms are respectively perpendicular to the left and right power output shafts Connection and coordination; this mechanism realizes the full gear meshing transmission of the splitting mechanism, and meets and adapts to the agronomic requirements of rice transplanting in wide and narrow rows. It has the characteristics of reasonable structure, good operation quality, small operation vibration, reliable use, and few failures.

Description

Single-axis bevel gear transmission inclined wide and narrow row rice transplanter splitting mechanism

technical field

The invention belongs to agricultural machinery, and mainly relates to a rice transplanting machine tool.

Background technique

Wide and narrow row transplanting refers to the implementation of one wide and one narrow planting method for the row spacing of rice transplanting. This planting method utilizes the principle of crop marginal advantage to increase production. By adjusting the row spacing of transplanting rice seedlings, the ventilation and light transmittance between plants can be improved, and diseases can be reduced. Increase the leaf area index, prolong the life of the leaves, and accelerate the accumulation of dry matter, so as to achieve the purpose of high quality and high yield, saving cost and increasing efficiency. The separate transplanting mechanism is a component on the rice transplanter that realizes taking seedlings, implanting them in the field, and planting the seedlings in rows. In the existing public transplanting mechanism of the rice transplanter, its transmission boxes all adopt chain transmission, and the chain transmission has a large vibration and is easy to break the chain; The structural configuration of the planting mechanism, the planting arm on the splitting mechanism can only move in a plane parallel to the forward direction and vertical to the ground. Under the premise that the seedling openings are equidistantly distributed, the transplanting position cannot form the wide and narrow row seedling distribution required by agronomy, which affects the Popularization and application of new agronomic methods for wide and narrow row transplanting.

Contents of the invention

The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and combine the actual needs of agricultural production operations to design and provide a single-axis bevel gear drive inclined wide and narrow row rice transplanter splitting mechanism to meet and adapt to rice transplanting in wide and narrow rows. Agronomic requirements, reduce the vibration of the rice transplanter, and reduce the purpose of machine tool failure.

The purpose of the present invention is achieved in the following way: the single-axis bevel gear transmission oblique wide and narrow row rice transplanter splitting mechanism includes a right splitting mechanism and a left splitting mechanism, the moving box body and the transmission box casing are firmly connected as one, fixed The power input shaft of the first bevel gear is assembled in the shift box body, and the main transmission shaft and the power input shaft of the second bevel gear, the third bevel gear and the fourth bevel gear are installed vertically in the transmission case housing and In the shifting box, the second bevel gear is located in the shifting box and meshes with the first bevel gear, the third bevel gear and the fourth bevel gear are located in the transmission box housing, and the third bevel gear and the second bevel gear are on the main transmission shaft. The four bevel gears are arranged and installed in reverse, the tooth surfaces are facing each other, the right power output shaft and the left power output shaft are oppositely fitted on the transmission box shell, and are perpendicular to the main transmission shaft, and the sixth bevel gear is fixed on the right power output shaft , which meshes with the fourth bevel gear, the fifth bevel gear is fixedly installed on the left power output shaft, and meshes with the third bevel gear, and the axes of the right power output shaft and the left power output shaft are arranged symmetrically at an angle α inclined upward relative to the horizontal plane , on the left outer part of the transmission box housing, install the left split mechanism vertically connected with the left power output shaft, and install the right split mechanism vertically connected with the right power output shaft at the right outer part of the transmission box shell . The right PTO has the same rotational speed as the left PTO.

The beneficial effect of the present invention is: by designing a set of bevel gear transmission mechanism to replace the traditional sprocket chain transmission, the vibration is reduced, chain breakage is avoided, and the transmission is more stable; at the same time, the splitting mechanism is realized by installing oblique bevel gear transmission respectively The inclined installation of the parts makes the planting arm move in the inclined plane, so that the seedling entry point moves to the left or right relative to the seedling picking position, and the seedling transplanting position forms agronomically required wide and narrow rows with unequal row spacing under the premise of equidistant distribution of the seedling picking openings. It has the characteristics of novel and reasonable structural design, good operation quality, less operation failure, small operation vibration, long service life, and especially can meet and adapt to the requirements of rice transplanting in wide and narrow rows.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the splitting mechanism of a single-axis bevel gear transmission inclined wide and narrow row rice transplanter;

Fig. 2 is a top view of the transmission box housing with the left and right insertion mechanisms omitted in Fig. 1, that is, a schematic diagram of the assembly structure of the transmission box and the shift box;

Fig. 3 is a schematic diagram of transplanting rice seedlings in wide and narrow rows.

Description of part number in the figure:

1. Shifting box body, 2. First bevel gear, 3. Second bevel gear, 4. Main drive shaft, 5. Transmission box shell, 6. Third bevel gear, 7. Sixth bevel gear, 8. Right power output shaft, 9, the fourth bevel gear, 10, left power output shaft, 11, the fifth bevel gear, 12, power input shaft, 13, right split mechanism, 14, left split mechanism.

Detailed ways

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. As shown in Figure 1 and Figure 2. The single-axis bevel gear transmission inclined wide and narrow row rice transplanter splitting mechanism includes a right splitting mechanism 13 and a left splitting mechanism 14, the moving box body 1 and the transmission box casing 5 are solidly connected into one body, and the first bevel gear 2 is fixed The power input shaft 12 is assembled in the shifting box body 1, and the main transmission shaft 4 and the power input shaft 12 of the second bevel gear 3, the third bevel gear 6 and the fourth bevel gear 9 are installed vertically in the transmission In the box housing 5 and the shifting box body 1, the second bevel gear 3 is located in the shifting box body 1 and meshed with the first bevel gear 2, and the third bevel gear 6 and the fourth bevel gear 9 are located in the transmission box shell Inside the body 5, the third bevel gear 6 and the fourth bevel gear 9 are arranged and installed in opposite directions on the main transmission shaft 4, the tooth surfaces are facing each other, and the right power output shaft 8 and the left power output shaft 10 are relatively fitted on the transmission case housing 5 , and perpendicular to the main transmission shaft 4, the sixth bevel gear 7 is fixed on the right power output shaft 8, and meshes with the fourth bevel gear 9, and the fifth bevel gear 11 is fixed on the left power output shaft 10, and the fifth bevel gear 11 is fixed on the left power output shaft 10, and The three bevel gears 6 are meshed, and the axes of the right power output shaft 8 and the left power output shaft 10 are symmetrically arranged at an angle of α relative to the horizontal plane, and are arranged and installed on the left outer side of the transmission case housing 5 perpendicular to the left power output shaft 10 The left split-insert mechanism 14 is connected and matched, and the right split-inserted mechanism 13 vertically connected with the right power output shaft 8 is arranged and installed on the right outer part of the transmission case housing 5 . The rotational speed of the right power output shaft 8 and the left power output shaft 10 is the same.

As shown in Figure 3, d is the position of the seedling door, e is the position of the inserted seedling, and the distance between two adjacent seedling doors is S=300mm. Compared with the seedling picking position, there is a lateral offset of ΔS between the transplanting position of the wide and narrow row sub-planting mechanism. After transplanting, a wide row spacing f=S+2 ^* ΔS and a narrow row spacing g=S-2 ^* ΔS are formed. For example ΔS=30mm, then the wide row spacing f=360mm, the narrow row spacing g=240mm, the seedlings form wide and narrow row spacing and distribute alternately.

The working principle and process of the present invention are: the power is input by the box-moving box mechanism, and is transmitted to the main transmission shaft in the transmission box mechanism through a pair of bevel gears, and is connected to the main transmission shaft through two oppositely installed The bevel gear meshes with the left and right bevel gears fixedly connected on the left and right power take-off shafts, and is output by the power take-off shafts. Since the left and right power output shafts and the horizontal plane are provided with an angle of upwardly inclined configuration, the left and right bevel gears fixedly connected on the left and right power output shafts are installed obliquely relative to the vertical plane, so that they are fixedly connected to the The components of the left and right split mechanism on the left and right power output shafts move in the inclined plane in the same direction and at constant speed. The rice transplanting position of the left sub-transplanting mechanism part is on the left side of the seedling picking position, and the rice transplanting position of the right sub-transplanting mechanism part is on the right side of the seedling picking position. On the premise that the seedling doors are equidistantly distributed, the rice transplanting operation in wide and narrow rows is realized.

Claims (2)

1. A single-axis bevel gear transmission oblique wide and narrow row rice transplanter splitting mechanism, comprising a right splitting mechanism (13) and a left splitting mechanism (14), characterized in that the box body (1) and the transmission box shell The body (5) is fixedly connected into one body, and the power input shaft (12) of the first bevel gear (2) is fitted in the box body (1), and the second bevel gear (3) and the third bevel gear are fixed The main transmission shaft (4) of the gear (6) and the fourth bevel gear (9) and the power input shaft (12) are vertically fitted in the transmission case housing (5) and the case body (1), wherein the first The second bevel gear (3) is located in the shifting box (1) and meshes with the first bevel gear (2), the third bevel gear (6) and the fourth bevel gear (9) are located in the transmission case housing (5) Inside, on the main transmission shaft (4), the third bevel gear (6) and the fourth bevel gear (9) are installed in opposite directions, the tooth surfaces are opposite, and the right power output shaft (8) is opposite to the left power output shaft (10) Fitted on the transmission box housing (5) and perpendicular to the main transmission shaft (4), the sixth bevel gear (7) is fixed on the right power output shaft (8) and meshes with the fourth bevel gear (9) , the fifth bevel gear (11) is fixed on the left PTO shaft (10) and meshes with the third bevel gear (6). The horizontal plane is upwardly inclined to be symmetrically arranged in an α-angle shape, and the left extension mechanism (14) vertically connected with the left power output shaft (10) is arranged and installed on the left outer side of the transmission case housing (5). ) is configured and installed with the right split-insert mechanism (13) that is vertically connected with the right power take-off shaft (8). 2. The single-axis bevel gear transmission inclined wide and narrow row rice transplanter splitting mechanism according to claim 1, characterized in that the rotational speed of the right power output shaft (8) is the same as that of the left power output shaft (10).

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