CN-224201054-U - Transmission mechanism of variable speed gear box for transplanting machine

CN224201054UCN 224201054 UCN224201054 UCN 224201054UCN-224201054-U

Abstract

The utility model discloses a variable speed gear box transmission mechanism for a transplanting machine. According to the utility model, the box cover and the box body are detachably fixed, the input shaft, the output shaft I and the output shaft II are horizontally and parallelly arranged and are perpendicular to the box cover, the input shaft, the output shaft I and the output shaft II are all connected with the box cover and the box body to form a revolute pair, the input shaft is connected with the output shaft I through a reduction gear set arranged in the box body, a first speed change gear and a second speed change gear which are arranged at intervals are fixedly arranged at positions on the output shaft I in the box body, a sleeve of the sliding gear set is connected with the output shaft II at positions in the box body through a spline and a spline groove, and a third speed change gear and a fourth speed change gear which are fixedly arranged at two ends of the sleeve are respectively arranged between the first speed change gear and the second speed change gear. The utility model has the functions of speed reduction and speed change, can transmit power to different execution parts of the transplanting machine, and has the advantages of small volume, low weight, compact structure and high stability.

Inventors

Zhai Huile
ZHAO ENJIE
YU XUEFU

Assignees

浙江常山铭锐机电有限公司

Dates

Publication Date: 20260505
Application Date: 20250625

Claims (7)

1. The transmission mechanism of the variable speed gearbox for the transplanting machine comprises a box cover, a box body and an input shaft, and is characterized by further comprising a first output shaft, a second output shaft, a reduction gear set and a sliding gear set, wherein the box cover and the box body are detachably fixed, the input shaft penetrates into the box body through a first round hole formed in the box body and forms a revolute pair with the first box cover, the first output shaft penetrates into the box body through a second round hole formed in the box body and forms a revolute pair with the box cover and the second round hole, the first output shaft is connected with the input shaft through the reduction gear set arranged in the box body, a first speed change gear and a second speed change gear which are arranged at intervals are fixedly arranged at positions of the first output shaft and are positioned in the box body, the third output shaft and the third output shaft form a revolute pair through a third round hole formed in the box body and a third round hole formed in the box body, the sliding gear set is arranged at positions of the second output shaft and are formed by a sleeve and two ends of the sleeve, the sleeve is sleeved on the second output shaft and is connected with the second output shaft through a spline and a spline, the third speed change gear and the fourth speed change gear are positioned between the first speed change gear and the second speed change gear, the fourth speed change gear is positioned between the speed change gear and the third speed change gear and the fourth speed change gear is positioned between the first speed change gear and the third speed change gear and the fourth speed gear is positioned near one end of the clutch and one end of the clutch is arranged outside the box and the clutch.
2. The variable speed gearbox transmission mechanism for a transplanting machine as set forth in claim 1, wherein the box body is further provided with a notch.
3. The transmission mechanism of a variable speed gearbox for a transplanting machine according to claim 1, wherein the reduction gear set comprises a reduction gear pair I, a gear shaft I, a reduction gear pair II, a gear shaft II and a reduction gear pair III, the gear shaft I and the gear shaft II are parallel to an input shaft, one ends of the gear shaft I and the gear shaft II form a revolute pair with a box cover, the other ends of the gear shaft I and the gear shaft II form a revolute pair with a box body, the gear shaft I is connected with the input shaft through the reduction gear pair I and is connected with the gear shaft II through the reduction gear pair II, and the gear shaft II is connected with the output shaft I through the reduction gear pair III.
4. A variable speed gearbox transmission for a transplanting machine according to claim 3, wherein the first reduction gear pair comprises a first reduction gear and a second reduction gear, and the first reduction gear and the second reduction gear are meshed and respectively fixed on the input shaft and the first gear shaft.
5. A transmission mechanism of a variable speed gearbox for a transplanting machine according to claim 3, wherein the second speed reducing gear pair comprises a third speed reducing gear and a fourth speed reducing gear, and the third speed reducing gear and the fourth speed reducing gear are meshed and respectively fixed on the first gear shaft and the second gear shaft.
6. A transmission mechanism of a variable speed gearbox for a transplanting machine according to claim 3, wherein the third reduction gear pair comprises a fifth reduction gear and a sixth reduction gear, the fifth reduction gear is meshed with the sixth reduction gear and is respectively fixed on the second gear shaft and the first output shaft, and the sixth reduction gear is positioned on one side of the first reduction gear far away from the second reduction gear.
7. The transmission mechanism of a variable speed gearbox for a transplanting machine according to claim 1, wherein a sprocket I and a sprocket II are respectively fixed at one end of the output shaft I, which is positioned outside the box body, and at one end of the output shaft II, which is positioned outside the box cover.

Description

Transmission mechanism of variable speed gear box for transplanting machine Technical Field The utility model belongs to the technical field of gearbox transmission, and particularly relates to a variable-speed gearbox transmission mechanism for a transplanter. Background In recent years, agricultural machinery is developed in the direction of miniaturization and light weight, and especially transplanting machinery is more focused on the portability of the whole machine so as to meet the requirements of operations in hilly and mountain areas, small fields and greenhouses. The main action executing components of the existing non-traction type transplanting machine are a frame chassis and a transplanting mechanism, the transmission components comprise a speed reducer, a gearbox and chain transmission and belt transmission at all levels, and power output by an engine is respectively transmitted to the frame chassis and the transplanting mechanism for transplanting operation. However, the power output by the engine is required to pass through the speed reducer and the multi-gear gearbox in sequence, so that the torque and the rotating speed are regulated to proper ranges and then are input into the executing component. The size, the weight, the connection between the speed reducer and the gearbox and the installation and arrangement are considered, the lightweight design of the whole machine is not facilitated, and meanwhile, if the connection precision between the speed reducer and the gearbox is poor, the problems of abnormal sound, vibration and the like are generated, and the stability is low. For this reason, new solutions need to be designed to solve. Disclosure of Invention The utility model aims to overcome the defects of the prior art and provides a variable speed gear box transmission mechanism for a transplanting machine. In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model relates to a variable-speed gearbox transmission mechanism for a transplanting machine, which comprises a box cover, a box body, an input shaft, an output shaft I, an output shaft II, a reduction gear set and a sliding gear set. The box cover and the box body are detachably fixed; the input shaft penetrates into the box body through a first round hole formed in the box body, the first round hole, the box cover and the first round hole form a revolute pair, the output shaft penetrates into the box body through a second round hole formed in the box body, the first round hole, the box cover and the second round hole form a revolute pair, the speed reducing gear set arranged in the box body is connected with the input shaft through a first speed changing gear set and a second speed changing gear set which are fixedly arranged at intervals on the first output shaft and are positioned in the box body, the output shaft penetrates into the box body through a third round hole formed in the box cover, the box body and the third round hole form a revolute pair, the sliding gear set is arranged on the second output shaft and is composed of a third speed changing gear set and a fourth speed changing gear set which are fixedly arranged at two ends of the sleeve, the sleeve is sleeved on the second output shaft and connected with the second output shaft through a spline and a spline groove, the third speed changing gear set and the fourth speed changing gear set are positioned between the first speed changing gear set and the second speed changing gear set, the third speed changing gear set is close to the first speed changing gear set, one end of the input shaft, positioned outside the box body, is connected with a clutch mounting shaft through a belt transmission mechanism, and a clutch is mounted on the clutch mounting shaft. Preferably, the box body is also provided with a notch. Preferably, the reduction gear set comprises a reduction gear pair I, a gear shaft I, a reduction gear pair II, a gear shaft II and a reduction gear pair III, wherein the gear shaft I and the gear shaft II are parallel to the input shaft, one ends of the gear shaft I and the gear shaft II form a revolute pair with the box cover, the other ends of the gear shaft I and the gear shaft II form a revolute pair with the box body, the gear shaft I is connected with the input shaft through the reduction gear pair I and connected with the gear shaft II through the reduction gear pair II, and the gear shaft II is connected with the output shaft I through the reduction gear pair III. More preferably, the first reduction gear pair includes a first reduction gear and a second reduction gear, and the first reduction gear and the second reduction gear are meshed and fixed on the input shaft and the first gear shaft, respectively. More preferably, the second reduction gear pair comprises a third reduction gear and a fourth reduction gear, and the third reduction gear and the fourth reduction gear are meshed and re