CN114568081A

CN114568081A - Single roller clamp formula seedling pulling mechanism of helical arrangement

Info

Publication number: CN114568081A
Application number: CN202210253852.6A
Authority: CN
Inventors: 王术平; 宋建龙; 龙学平
Original assignee: Hunan Longzhou Farm Equipment Holdings Co ltd
Current assignee: Hunan Longzhou Farm Equipment Holdings Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-06-03

Abstract

The invention discloses a spirally-arranged single-roller clamp type seedling pulling mechanism, which comprises a seedling pulling mechanism bracket, a cam disc and a roller; the cam disc is fixed on the seedling pulling mechanism bracket, the roller can be rotatably arranged on the seedling pulling mechanism bracket, the cam disc is sleeved on a roller shaft, and the roller shaft can rotate relative to the cam disc; at least two seedling clamping assemblies are arranged on the roller, and each seedling clamping assembly is uniformly arranged on the roller to realize the seedling pulling at intervals. The invention realizes automatic interval seedling pulling, has small damage to the seedling tray and the seedlings, high seedling pulling efficiency and high-speed and accurate planting operation.

Description

Single roller clamp formula seedling pulling mechanism of helical arrangement

Technical Field

The invention relates to the field of machinery, in particular to a spiral arrangement single-roller clamp type seedling pulling mechanism.

Background

The rice seedling throwing technology is the best cultivation technology at present, and solves the problems of seedling damage and growth period prolongation of the traditional rice transplanting to a certain extent. The main advantages are that: the labor intensity of manual operation is low, the operation efficiency is high, the green turning is fast, the effective tillering at low node is more, the spike shape is neat, the maturity is good, the yield increasing effect is obvious, but at present, almost no mature machine type is applied to production.

At present, the operation principle of the Japanese rice seedling throwing technology adopts a push-out type seedling taking principle, seedlings are planted into a field through a planting disc, and the Japanese rice seedling throwing technology has the following defects: the cost of the seedling raising tray is too high, 15 yuan per seedling raising tray, the mu dosage is 40-50 trays, the structure of the machine is complex, the working efficiency is low, the cost of the machine is high, and the total investment is high. The throwing disc type seedling throwing machine utilizes the high-speed rotation of the throwing disc to throw out the seedlings fed into the throwing disc, and the seedlings fall into a field by means of gravity and inertia to complete the planting operation. The air-blowing type seedling throwing machine utilizes high-speed airflow to throw seedlings into the field and enters the soil by gravity to complete the planting operation. The air-blowing type seedling throwing machine and the throwing disc type seedling throwing machine have the following defects: uneven throwing and planting, difficult control of density and inconvenience for subsequent operation. The ordered rice seedling throwing machine is characterized in that a belt clamping type seedling taking mode is adopted, seedlings are pulled out from a seedling raising tray 3 and conveyed to each row through a belt, and when the seedlings reach the top end of the belt, the seedlings fall into a field after being thrown out, and planting operation is completed: the seedling pulling operation mechanism for the seedling throwing machine has the advantages that the operation speed is high, ordered in-line seedling throwing can be realized, the auxiliary labor is high, the overall efficiency is not high, the requirements for seedling raising and soil preparation quality are high, the influence of strong wind is serious, and the key point is how to pull the seedlings, so that the seedling pulling operation mechanism for the seedling throwing machine, which has small damage to a seedling tray and the seedlings, high seedling pulling efficiency and high-speed and accurate planting operation, is urgently needed to be researched and developed.

Disclosure of Invention

In view of the above, the invention provides a spirally arranged single-roller clamp type seedling pulling mechanism, which realizes automatic interval seedling pulling, has small damage to a seedling tray and seedlings, high seedling pulling efficiency, and high-speed and accurate planting operation.

On one hand, the invention provides a spirally-arranged single-roller clamp type seedling pulling mechanism, which comprises a seedling pulling mechanism bracket, a cam disc and a roller; the cam disc is fixed on the seedling pulling mechanism bracket, the roller can be rotatably arranged on the seedling pulling mechanism bracket, the cam disc is sleeved on a roller shaft, and the roller shaft can rotate relative to the cam disc; at least two seedling clamping assemblies are arranged on the roller, and each seedling clamping assembly is uniformly arranged on the roller to realize the seedling pulling at intervals.

Furthermore, fixed plates which are arranged at intervals are arranged on the roller, the seedling clamping assembly comprises sliding rods, at least two clamping plate sliding sleeves and at least two return springs, the clamping plate sliding sleeves are arranged on the sliding rods at intervals, the tail ends of the sliding rods are provided with rollers, the rollers abut against a cam disc, and the return springs are arranged between two adjacent clamping plate sliding sleeves and between the clamping plate sliding sleeves and the roller; the clamping plate sliding sleeve is matched with the fixed plate to clamp the rice seedlings; the clamping plate sliding sleeves in all the seedling clamping assemblies are arranged on the outer surface of the roller in a staggered and spiral manner to realize the seedling pulling at intervals.

Furthermore, the fixing plate is made of elastic material, and an elastic gasket is arranged on the splint sliding sleeve.

Furthermore, the seedling separating grid plate is fixed on the seedling pulling mechanism bracket, and the fixing plates and the seedling separating grid plate are arranged correspondingly.

Furthermore, the seedling clamping components comprise three components which are respectively separated by 120 degrees, each seedling clamping component comprises 5 clamping plate sliding sleeves, the roller rotates by 120 degrees, and 5 seedlings are pulled out from one row of the seedling tray by the 5 clamping plate sliding sleeves in one seedling clamping component at intervals. The roller rotates for a circle, and 15 seedlings in a row of the seedling tray are completely pulled out by 3 seedling clamping assemblies for 3 times.

Compared with the prior art, the single-roller clamp type seedling pulling mechanism with the spiral arrangement has the beneficial effects that:

realizes automatic interval seedling pulling, and realizes the adjustment of the planting distance by changing the different matching of the seedling pulling speed and the advancing speed. And has the advantages of simple structure, light weight, low processing and manufacturing cost, convenient operation, reliable work, little damage to the seedling tray and the seedlings, high production efficiency, high seedling pulling efficiency, high speed, accurate planting operation and the like.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of the rice seedling throwing machine of the present invention;

FIG. 2 is a schematic structural view of the seedling pulling mechanism shown in FIG. 1;

FIG. 3 is a schematic view of the drum structure of FIG. 2;

fig. 4 is a sectional view a-a of fig. 3.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figure 1, the invention preferably adopts a spirally-arranged single-roller-clamp type seedling pulling mechanism 21, the spirally-arranged single-roller-clamp type seedling pulling mechanism 21 is arranged on a seedling throwing machine 1, and a seedling tray 3 is arranged on the seedling throwing machine 1.

As shown in fig. 2 to 4, the spirally arranged single-roller clamp type seedling pulling mechanism 21 comprises a seedling pulling mechanism bracket, a cam plate 212, 16 seedling separating grid plates 211 and a roller 210; the cam disc 212 and the seedling-separating grid plate 211 are fixed on a seedling-pulling mechanism bracket, the roller 210 can be rotatably arranged on the seedling-pulling mechanism bracket, 16 seedling-separating grid plates 211 are positioned above the upper layer grid-shaped chain 202, 15 seedling channels are formed by the 16 seedling-separating grid plates 211, the cam disc 212 is sleeved on the shaft of the roller 210, the cam disc 212 is fixed, and the shaft of the roller 210 can rotate relative to the cam disc 212.

3 seedling clamping assemblies 213 and fixing plates 219 which are arranged at intervals are arranged on the roller 210, the fixing plates 219 are arranged corresponding to the seedling distribution grid plates 211, the seedling clamping assemblies 213 comprise sliding rods 215, 5 clamping plate sliding sleeves 216 and 5 return springs 217, the clamping plate sliding sleeves 216 are arranged on the sliding rods 215 at intervals, rollers 214 are arranged at the tail ends of the sliding rods 215, the rollers 214 abut against the cam disc 212, and the return springs 217 are arranged between two adjacent clamping plate sliding sleeves 216 and between the clamping plate sliding sleeves 216 and the roller 210; the clamping plate sliding sleeve 216 is matched with the fixing plate 219 to clamp the seedlings; the fixing plate 219 is made of an elastic material, and an elastic washer 218 is installed on the splint sliding sleeve 216. The 3 seedling clamping components 213 are uniformly arranged on the roller 210, and 15 clamping plate sliding sleeves 216 in the 3 seedling clamping components 213 are staggered and spirally arranged on the outer surface of the roller 210 to realize interval seedling pulling. The drum 210 rotates 120 degrees, wherein 5 clamp plate sliding sleeves 216 in one clamp plate assembly 213 pull 5 seedlings from the seedling tray 3 in a row at intervals. The roller 210 rotates for a circle, and the 3 seedling clamping assemblies 213 pull out all 15 seedlings in a row of the seedling tray 3 for 3 times, so that automatic seedling pulling at intervals is realized, high-speed and accurate planting operation is realized, and the planting operation effect is ensured.

The techniques not described above are common general knowledge of the skilled person. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A spirally arranged single-roller clamp type seedling pulling mechanism is characterized by comprising a seedling pulling mechanism bracket, a cam disc (212) and a roller (210); the cam disc (212) is fixed on a seedling pulling mechanism bracket, the roller (210) is rotatably arranged on the seedling pulling mechanism bracket, the cam disc (212) is sleeved on the shaft of the roller (210), and the shaft of the roller (210) can rotate relative to the cam disc (212); at least two seedling clamping assemblies (213) are arranged on the roller (210), and each seedling clamping assembly (213) is uniformly arranged on the roller (210) to realize the seedling pulling at intervals.

2. The single-roller-clamp seedling pulling mechanism with the spiral arrangement as claimed in claim 1, wherein fixing plates (219) are arranged on the roller (210) at intervals, the seedling clamping assembly (213) comprises a sliding rod (215), at least two clamping plate sliding sleeves (216) and at least two return springs (217), the clamping plate sliding sleeves (216) are arranged on the sliding rod (215) at intervals, a roller (214) is arranged at the tail end of the sliding rod (215), the roller (214) abuts against the cam disc (212), and the return springs (217) are arranged between two adjacent clamping plate sliding sleeves (216) and between the clamping plate sliding sleeves (216) and the roller (210); the clamping plate sliding sleeve (216) is matched with the fixing plate (219) to clamp seedlings; the clamping plate sliding sleeves (216) in all the seedling clamping assemblies (213) are arranged on the outer surface of the roller (210) in a staggered and spiral manner to realize interval seedling pulling.

3. The screw-type single-roller clamp seedling pulling mechanism according to claim 2, wherein the fixing plate (219) is made of an elastic material, and an elastic washer (218) is mounted on the clamp plate sliding sleeve (216).

4. A single-roller-clip type seedling pulling mechanism with spiral arrangement according to claim 3, characterized by comprising a seedling separating grid plate (211), wherein the seedling separating grid plate (211) is fixed on a seedling pulling mechanism bracket, and the fixing plate (219) is arranged corresponding to the seedling separating grid plate (211).

5. The screw-arrangement single-roller-clamp type seedling pulling mechanism according to claim 4, characterized in that the seedling clamping assemblies (213) comprise three, the three seedling clamping assemblies (213) are respectively separated by 120 degrees, each seedling clamping assembly (213) comprises 5 clamping plate sliding sleeves (216), the roller (210) rotates by 120 degrees, and the 5 clamping plate sliding sleeves (216) in one seedling clamping assembly (213) pull out 5 seedlings from a row of the seedling tray (3) at intervals. The roller (210) rotates for a circle, and 15 seedlings in one row of the seedling tray (3) are completely pulled out by 3 seedling clamping assemblies (213) in 3 times.