CN214316217U - Plant spacing gearbox of high-clearance full-time four-wheel-drive rice transplanter - Google Patents

Abstract

The utility model discloses a high ground clearance full-time four-wheel drive transplanter plant spacing gearbox, include: the device comprises a box body, a driving device and a control device, wherein an input shaft, a middle first shaft, a middle second shaft, a middle third shaft and a shifting fork shaft are arranged in the box body in parallel; the shifting fork shaft is connected with a shifting fork in a sliding mode, and under the control of a shifting handle, the shifting gear is selectively meshed or separated with the first plant spacing gear, the second plant spacing gear, the third plant spacing gear and the fourth plant spacing gear through the shifting fork, so that the first plant spacing, the second plant spacing, the third plant spacing and the fourth plant spacing of the rice transplanter are switched. The plant spacing gearbox can realize the speed change of four plant spacing, the clutch device is arranged on the output shaft, the transplanting power can be cut off independently, and one shifting gear can be selectively meshed with two plant spacing gears through a gear shifting technology, so that the gearbox is more compact in structure, and the minimum ground clearance of the transplanter increased by raising the rack is not influenced.

Description

Plant spacing gearbox of high-clearance full-time four-wheel-drive rice transplanter

Technical Field

The utility model relates to a gearbox technical field especially relates to a plant spacing gearbox of full-time four-wheel-drive transplanter of highland crack.

Background

With the adjustment of national environmental protection policy and the enhancement of environmental protection consciousness of people, the burning inhibition of straws becomes a trend. As a main production area of rice in China, the northeast region has changed the treatment mode of rice straws greatly from the traditional field incineration to the current crushing and returning to the field. However, the rotting speed of the rice straws is low, the broken rice straw residues accumulated in the rice field can influence the normal transplanting and growth of the rice, and in order to ensure the normal transplanting and growth of the rice, the rice straws are generally deeply buried in a deep ploughing mode at present, so that the mud foot depth of the rice field is increased, the mud foot depth of a plurality of land blocks of the rice field is more than 350mm, and some of the land blocks of the rice field even reach 500 mm. The prior common rice transplanter is suitable for rice fields with the mud foot depth of between 150mm and 300mm and the mud foot depth of more than 350mm, and the operation of the common rice transplanter is very difficult.

In order to accommodate such a change in the depth of the mud foot, the minimum ground clearance (ground clearance) of the four-wheeled rice transplanter must also be higher and higher, and also better driving force and turning performance must be obtained, which obviously cannot be achieved by increasing only the diameters of the front and rear wheels. The minimum ground clearance of the rice transplanter is a system project, the minimum ground clearance needs to be increased from all aspects, a planting distance gearbox is an important component of a transmission system, and how to make the gearbox more compact on the premise of ensuring the planting distance speed change performance, so that the minimum ground clearance of the rice transplanter increased by raising a rack is not influenced, and the minimum ground clearance is a technical problem which needs to be solved urgently in the industry.

Disclosure of Invention

To the above insufficiency of the prior art, the utility model provides a compact structure's high ground clearance is four-wheel drive transplanter plant spacing gearbox all-time, it can not influence because of raising the minimum ground clearance of transplanter that the frame increases.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a plant spacing gearbox of a high-clearance full-time four-wheel-drive rice transplanter comprises: the device comprises a box body, wherein an input shaft, a middle shaft and a shifting fork shaft are arranged in the box body in parallel, an output shaft is rotatably arranged on a bearing seat, the bearing seat is fixed on the box body, the input shaft extends out of one side of the box body, and the output shaft extends out of the other side of the box body; the input shaft is fixedly connected with an input shaft fixed gear; a fixed gear of the middle shaft is fixedly connected to the middle shaft and meshed with the fixed gear of the input shaft; the middle two-shaft fixed gear is fixedly connected to the middle two-shaft and connected with the gear shifting gear through a sliding key, and the middle two-shaft fixed gear is meshed with the middle one-shaft fixed gear; a first spacing gear, a second spacing gear, a third spacing gear, a fourth spacing gear and a middle three-axis fixed gear are fixedly connected to the middle three-axis; the shifting fork shaft is slidably connected with a shifting fork, the shifting fork shaft is fixed on the box body, and under the control of a shifting handle, the shifting gear is selectively meshed or separated with the first spacing gear, the second spacing gear, the third spacing gear and the fourth spacing gear through the shifting fork so as to realize the switching of the first spacing, the second spacing, the third spacing and the fourth spacing of the rice transplanter; the bearing frame rotates and installs clutch gear, the one end of output shaft rotate install in the bearing frame, the other end rotate install in clutch gear, clutch gear with middle triaxial fixed gear meshes, the cover is equipped with the dog spring and sliding key connects has the separation dog on the output shaft, makes shift fork mechanism stir through the control handle separation dog axial displacement and then realize with clutch gear's combination and separation, the control handle rotate install in the box.

The gear shifting gear is a triple gear shifting gear which comprises a first gear, a second gear and a third gear, and the first gear and the first pitch gear and the second pitch gear which can be meshed with the first gear are all modified gears.

The utility model adopts the above technical scheme after, the technological effect who gains is:

the utility model discloses a plant spacing gearbox can realize the variable speed of four plant spacings, has set up clutch moreover on the output shaft, can cut off the power of transplanting rice seedlings alone, still makes a gear of shifting can with two plant spacing gear selective meshing through the gear shift technique, therefore can realize more plant spacing variable speeds with less gear structure, the structure of gearbox is more compact, it can not influence because of raising the minimum ground clearance of transplanter that the frame increases.

Drawings

FIG. 1 is a front view of an embodiment of a plant spacing gearbox of the high-clearance full-time four-wheel-drive rice transplanter of the utility model;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1;

in the figure:

300-row pitch gearbox, 301-box, 302-input shaft, 303-middle shaft, 304-middle two shaft, 305-middle three shaft, 306-output shaft, 307-bearing seat, 308-jaw spring, 309-separation jaw, 310-operating handle, 311-clutch gear, 312-middle three shaft fixed gear, 313-first row pitch gear, 314-second row pitch gear, 315-third row pitch gear, 316-fourth row pitch gear, 317-gear-shifting triple gear, 318-middle two shaft fixed gear, 319-middle one shaft fixed gear, 320-input shaft fixed gear, 321-shifting fork shaft, 322-gear-shifting handle and 323-shifting fork.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 4, an input shaft 302, an intermediate shaft 303, an intermediate shaft 304, an intermediate shaft 305, and a fork shaft 321 are provided in parallel in a casing 301 of the inter-row spacing transmission 300, an output shaft 306 is rotatably mounted on a bearing block 307, the bearing block 307 is fixed to the casing 301, the input shaft 302 extends from one side of the casing 301, and the output shaft 306 extends from the other side of the casing 301.

An input shaft fixed gear 320 is fixedly connected to the input shaft 302, an intermediate shaft fixed gear 319 is fixedly connected to the intermediate shaft 303, and the intermediate shaft fixed gear 319 is meshed with the input shaft fixed gear 320; an intermediate two-shaft fixed gear 318 is fixedly connected to the intermediate two-shaft 304 and a shifting triple gear 317 (including a first gear, a second gear and a third gear) is connected to the sliding key, and the intermediate one-shaft fixed gear 319 is meshed with the intermediate two-shaft fixed gear 318; the shifting triple gear 317 is controlled by a shifting fork 323, the shifting fork 323 is slidably connected with a shifting fork shaft 321 and controlled by a shifting handle 322, and the shifting fork shaft 321 is fixed on the box body 301. A first pitch gear 313, a second pitch gear 314, a third pitch gear 315, a fourth pitch gear 316 and an intermediate three-axis fixed gear 312 are fixedly connected to the intermediate three-axis 305.

The shifting fork shaft 321 is connected with a shifting fork 323 in a sliding mode, the shifting fork shaft 321 is fixed to the box body 301, and under the control of the shifting handle 310, the shifting triple gear 317 is selectively meshed with or separated from the first plant spacing gear 313, the second plant spacing gear 314, the third plant spacing gear 315 and the fourth plant spacing gear 316 through the shifting fork 323, so that the first plant spacing, the second plant spacing, the third plant spacing and the fourth plant spacing of the rice transplanter are switched. At this time, the first gear of the shifting triple gear 317, the first pitch gear 313 and the second pitch gear 314 are all displacement gears, and correct meshing between one gear and two gears with different tooth numbers is realized through positive displacement and negative displacement of the gears, so that more pitch speed change is realized by using less gear structures. Of course, in order to realize a four-speed transmission, the shift gears may be provided as four-speed shift gears.

A clutch gear 311 is rotatably mounted on the bearing seat 307, one end of the output shaft 306 is rotatably mounted on the bearing seat 307, the other end of the output shaft is rotatably mounted on the clutch gear 311, and the clutch gear 311 is meshed with the middle three-shaft fixed gear 312; the output shaft 306 is sleeved with a jaw spring 308 and connected with a sliding key to form a separation jaw 309, the control handle 310 is rotatably installed on the box body 301, the clutch device comprises a clutch gear 311, the separation jaw 309 and the jaw spring 308, the shifting fork mechanism and the control handle 310 jointly form the clutch device, the clutch device is integrated on the bearing seat 307, and the structure is compact and convenient to disassemble and assemble. The shifting fork mechanism is driven by the operating handle 310 to shift the separating jaw 309 to move axially to realize the combination and separation with the clutch gear 311, thereby cutting off the power of the transplanting operation part 500 in the process of the transplanting machine walking.

The plant spacing gear box 300 can realize the speed change of four plant spacing gears, and the output shaft of the plant spacing gear box has a clutch function, so that the transplanting power can be cut off independently.

The transmission route of the plant spacing gearbox is as follows:

the first distance between the strains: the input shaft 301 → the input shaft fixed gear 320 → the intermediate shaft fixed gear 319 → the intermediate two-shaft fixed gear 318 → the intermediate two-shaft 304 → the first gear in the shifting triplet gear 317 → the first pitch gear 313 → the intermediate three-shaft 305 → the intermediate three-shaft fixed gear 312 → the clutch gear 311 → the split dog 309 → the output shaft 306.

The second planting distance: the input shaft 301 → the input shaft fixed gear 320 → the intermediate shaft fixed gear 319 → the intermediate two-shaft fixed gear 318 → the intermediate two-shaft 304 → the first gear in the shifting triplet gear 317 → the second pitch gear 314 → the intermediate three-shaft 305 → the intermediate three-shaft fixed gear 312 → the clutch gear 311 → the split dog 309 → the output shaft 306.

Third plant spacing: the input shaft 301 → the input shaft fixed gear 320 → the intermediate shaft fixed gear 319 → the intermediate two-shaft fixed gear 318 → the intermediate two-shaft 304 → the second gear in the shifting triplet gear 317 → the third pitch gear 315 → the intermediate three-shaft 305 → the intermediate three-shaft fixed gear 312 → the clutch gear 311 → the split dog 309 → the output shaft 306.

Fourth planting distance: the input shaft 301 → the input shaft fixed gear 320 → the intermediate shaft fixed gear 319 → the intermediate two-shaft fixed gear 318 → the intermediate two-shaft 304 → the third gear in the shifting triplet gear 317 → the fourth pitch gear 316 → the intermediate three-shaft 305 → the intermediate three-shaft fixed gear 312 → the clutch gear 311 → the split dog 309 → the output shaft 306.

The present invention is not limited to the above embodiments, and all improvements based on the concept, principle, structure and method of the present invention will fall within the protection scope of the present invention.

Claims (2)

1. A plant spacing gearbox of a high-clearance full-time four-wheel-drive rice transplanter comprises:

a box body; it is characterized in that the preparation method is characterized in that,

an input shaft, a middle first shaft, a middle second shaft, a middle third shaft and a shifting fork shaft are arranged in the box body in parallel, an output shaft is rotatably arranged on a bearing seat, the bearing seat is fixed on the box body, the input shaft extends out of one side of the box body, and the output shaft extends out of the other side of the box body;

the input shaft is fixedly connected with an input shaft fixed gear; a fixed gear of the middle shaft is fixedly connected to the middle shaft and meshed with the fixed gear of the input shaft; the middle two-shaft fixed gear is fixedly connected to the middle two-shaft and connected with the gear shifting gear through a sliding key, and the middle two-shaft fixed gear is meshed with the middle one-shaft fixed gear; a first spacing gear, a second spacing gear, a third spacing gear, a fourth spacing gear and a middle three-axis fixed gear are fixedly connected to the middle three-axis;

the shifting fork shaft is slidably connected with a shifting fork, the shifting fork shaft is fixed on the box body, and under the control of a shifting handle, the shifting gear is selectively meshed or separated with the first spacing gear, the second spacing gear, the third spacing gear and the fourth spacing gear through the shifting fork so as to realize the switching of the first spacing, the second spacing, the third spacing and the fourth spacing of the rice transplanter;

the bearing frame rotates and installs clutch gear, the one end of output shaft rotate install in the bearing frame, the other end rotate install in clutch gear, clutch gear with middle triaxial fixed gear meshes, the cover is equipped with the dog spring and sliding key connects has the separation dog on the output shaft, makes shift fork mechanism stir through the control handle separation dog axial displacement and then realize with clutch gear's combination and separation, the control handle rotate install in the box.

2. The high-clearance full-time four-wheel-drive rice transplanter row spacing gearbox according to claim 1, wherein the shift gear is a triple shift gear comprising a first gear, a second gear and a third gear, and the first gear and the first row spacing gear and the second row spacing gear which can be meshed with the first gear are modified gears.

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