CN211525448U - One-way clutch structure on gearbox of small rice transplanter - Google Patents

Abstract

The utility model relates to an one-way clutch structure on small-size transplanter gearbox, an axle subassembly of variable speed includes one, fix an epaxial walking gear, and set up through one-way bearing and plant one-way gear in an epaxial one interpolation, the two axle subassemblies of variable speed include the biax, and set up and plant the duplicate gear in epaxial interpolation of biax, the half axle subassembly includes the semi-axis, and all fix at the semi-axis's half pinion, first strain of distance gear, one is an axle and the biax through the meshing transmission of an axle walking gear and two axle variable speed gear wheels or two axle variable speed pinion, one epaxial interpolation is planted one-way gear and two epaxial interpolation and is planted the duplicate gear, the two epaxial interpolation is planted the duplicate gear still with the semi-axis on the semi-axis meshing, thereby drive half. The utility model discloses can prevent the gear reversal in the gearbox, avoid the gearbox to damage.

Description

One-way clutch structure on gearbox of small rice transplanter

Technical Field

The invention belongs to the field of gearboxes of rice transplanters, and particularly relates to a one-way clutch structure on a gearbox of a small rice transplanter.

Background

A rice transplanter is an agricultural machine for planting rice seedlings into rice fields. When planting, firstly, a mechanical claw takes out a plurality of rice seedlings from a seedbed and plants the soil in a field, and in order to keep the angle between the seedbed and the ground at a right angle, the front end of the mechanical claw must adopt an elliptic action curve when moving. The motion is completed by a planetary mechanism of a rotary or deformation gear, and the advancing engine can drive the motion machines at the same time. The rice transplanter must have anti-slip wheels and a floating design when moving on the soil. If the seedlings are cut into pieces, the rice seedlings are taken out from a specific seedling box and then planted in a mechanical mode.

The gearbox of current transplanter, the part is more, and the structure is complicated, and the volume is great, and the brake adopts the brake block structure, and the effect is relatively poor after long-term the use, and secondly, does not have separation and reunion structure between gearbox and the transmission of planting the mechanism, in case plant the mechanism and block, makes the gearbox break down easily. In addition, the transmission structure of the gearbox is complex, the number of driving mechanisms is large, and any mechanism is in a problem and can damage the gearbox.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a one-way clutch structure on a gearbox of a small rice transplanter, which can effectively prevent gears in the gearbox from reversing and avoid the gearbox from being damaged.

In order to achieve the purpose, the invention adopts the following technical scheme:

a one-way clutch structure on a gearbox of a small rice transplanter comprises a gearbox shell, a half shaft component, a first speed change shaft component and a second speed change shaft component which are all arranged in the gearbox shell,

the variable speed shaft assembly comprises a shaft, a shaft walking gear fixed on the shaft, and a shaft inserted unidirectional gear arranged on the shaft through a unidirectional bearing,

the speed change dual-shaft component comprises a dual shaft, a dual shaft speed change big gear, a dual shaft speed change small gear, a dual shaft walking gear and an inserting dual gear which are all arranged on the dual shaft,

the half shaft assembly comprises a half shaft, a half shaft gear and a first pitch gear, wherein the half shaft gear and the first pitch gear are fixed on the half shaft,

the first shaft and the second shaft are in meshing transmission with a two-shaft variable-speed big gear or a two-shaft variable-speed small gear through a first shaft traveling gear, the unidirectional gear is inserted into the first shaft and a duplicate gear is inserted into the second shaft, and the duplicate gear is inserted into the second shaft and is meshed with a half shaft gear on a half shaft, so that the half shaft is driven to rotate.

As a preferable scheme: and a second oilless bearing is arranged between the half axle gear and the gearbox shell.

As a preferable scheme: the gearbox shell comprises a left gearbox shell and a right gearbox shell which are fixed through bolts.

A shaft of the gearbox is provided with a shaft inserted with an isolator gear by adopting a one-way bearing, and under the action of the one-way bearing, when the shaft rotates clockwise, the shaft inserted with the isolator gear is driven to rotate, so that an inserted double gear is driven to rotate, the inserted double gear drives a half shaft gear to rotate, and then a plant spacing gear is driven to rotate. When one shaft rotates in the opposite direction, the one-way gear inserted into one shaft cannot rotate, so that the transmission mechanism is protected.

Drawings

FIG. 1 is a schematic structural diagram of a transmission of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

FIG. 4 is a schematic cross-sectional view of a safety clutch configuration of the transmission of the present invention;

FIG. 5 is a schematic view of a safety clutch configuration of the transmission of the present invention;

FIG. 6 is a schematic cross-sectional view of a brake structure of the transmission of the present invention;

FIG. 7 is a schematic diagram of a brake configuration for the transmission of the present invention;

FIG. 8 is a schematic view of a one-way clutch configuration for the transmission of the present invention;

FIG. 9 is a transmission schematic of the transmission of the present invention;

fig. 10 is a schematic diagram of a row spacing switching structure of the transmission case of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in figures 1 to 10, the invention provides a gearbox of a riding rice transplanter, which comprises a gearbox shell 606, and an inserting power output shaft assembly 605, a walking power output shaft assembly 607, a half shaft assembly, a first speed changing shaft assembly, a second speed changing shaft assembly, a third speed changing shaft assembly and a fourth speed changing shaft assembly which are all arranged in the gearbox shell 606,

the variable speed shaft assembly comprises a shaft 601, a shaft traveling gear 6306 fixed on the shaft 601, and a shaft inserting one-way gear 6304 arranged on the shaft 601 through a one-way bearing 6305,

the speed-changing dual-shaft assembly comprises a dual shaft 602, a dual-shaft speed-changing large gear 6307, a dual-shaft speed-changing small gear 6309, a dual-shaft traveling gear 6310 and an implanting duplicate gear 6311 which are all arranged on the dual shaft 602, a speed-changing sliding sleeve 6308 is further arranged between the dual-shaft speed-changing large gear 6307 and the dual-shaft speed-changing small gear 6309, the speed-changing sliding sleeve 6308 is connected with a shifting fork assembly 6025,

the three-axis gear shifting assembly comprises three shafts 603, three-axis straight gears 6203 and three-axis bevel gears 6205 which are fixed on the three shafts 603, the four-axis gear shifting assembly comprises four shafts 604, bevel gears fixed on the four shafts 604 and second pitch gears 6205, the half-shaft assembly comprises a half shaft, a half-shaft gear 6302 and a first pitch gear 6501 which are fixed on the half shaft,

the first shaft 601 and the second shaft 602 are in meshing transmission with a two-shaft gear change gear 6307 or a two-shaft gear change pinion 6309 through a first shaft travelling gear 6306, the second shaft 602 and the third shaft 603 are in meshing transmission with a three-shaft spur gear 6203 through a two-shaft travelling gear 6310, a differential assembly 6206 for connecting the front axle transmission shaft 908 is further arranged on the third shaft, and the third shaft is in meshing transmission with a travelling power output shaft assembly 607 through a three-shaft bevel gear 6205,

the one-shaft planting unidirectional gear 6304 on the one shaft 601 is meshed with the planting duplicate gear 6311 on the two shaft 602, the planting duplicate gear 6311 on the two shaft 602 is also meshed with the half-shaft gear 6302 on the half shaft, so as to drive the half shaft to rotate, the half shaft and the four shaft 604 are in meshing transmission with the second planting distance gear 6205 through the first planting distance gear 6501, and the four shaft 604 drives the planting power output shaft assembly 605 through the bevel gear.

Under the action of the one-way bearing, when the first shaft rotates clockwise, the first shaft inserted isolator gear can be driven to rotate, the inserted duplex gear is driven to rotate, the inserted duplex gear drives the half axle gear to rotate, and then the planting spacing gear is driven to rotate. When one shaft rotates in the opposite direction, the one-way gear inserted into one shaft cannot rotate, so that the transmission mechanism is protected.

The plug-in power output shaft assembly 605 comprises an external spline safety clutch disc 611, a safety clutch cover 618, a clutch shaft 615 and an internal spline safety clutch disc 612, wherein the external spline safety clutch disc 611 is rotatably arranged in a gearbox shell 606 through a bearing, one end of the external spline safety clutch disc 611 is fixedly provided with a power output bevel gear 619, the safety clutch cover 618 is fixedly arranged on the gearbox shell 606, the clutch shaft 615 is rotatably arranged in the gearbox shell 606 through a bearing, the internal spline safety clutch disc 612 is sleeved at one end of the clutch shaft 615, a gasket 614 is further fixedly arranged on the clutch shaft 615, a clutch spring 613 is arranged between the internal spline safety clutch disc 612 and the gasket 614, and the external spline safety clutch disc 611 and the internal spline safety clutch disc 612 are tightly pressed by the clutch spring 613. A section of slope surface is arranged on the contact annular surface of the external spline safety clutch disc 611 and the internal spline safety clutch disc 612. When the torque of the power output bevel gear 619 exceeds the torque generated between the contact surfaces of the external spline safety clutch disc and the internal spline safety clutch disc under the action of the safety clutch spring, the internal spline safety clutch disc moves backwards and is separated from the external spline safety clutch disc, and power transmission is cut off.

And a third framework oil seal 616 is arranged between the clutch shaft 615 and the safety clutch cover 618, and a semi-circular collar 617 is also arranged between the external spline safety clutch disc 611 and the power output bevel gear 619.

A second oilless bearing 6303 is disposed between side gear 6302 and transmission housing 606. The four shaft 604 and the clutch shaft 615 are in meshing transmission with a power output bevel gear 619 through bevel gears.

The variable-speed triaxial assembly further comprises a brake shaft 6207, a first brake shoe 6209, a second brake shoe 6211 and a brake pull plate 6212, wherein the brake shaft 6207 is arranged in the gearbox shell through a bearing, the first brake shoe 6209 and the second brake shoe 6211 are respectively sleeved on the brake shaft 6207 through a first oilless bearing 6210 and are positioned on two sides of the triaxial straight gear 6203, a brake pin 6208 is further fixed on one side of the first brake shoe 6209 away from the triaxial straight gear 6203, a contact surface of the first brake shoe 6209 and the brake pin 6208 is a spiral conical surface, when the brake shaft 6207 rotates, the first brake shoe 6209 and the second brake shoe 6211 clamp the triaxial straight gear 6203, and the brake pull plate 6212 is further fixed on the brake shaft 6207. The brake pulling plate is rotated to drive the brake shaft and the brake pin shaft on the brake shaft, the brake pin shaft moves along the spiral conical surface on the first brake shoe 6209 to push the first brake shoe rightwards, and the first brake shoe and the second brake shoe compress the three-shaft straight gear, so that the brake effect is achieved.

The transmission housing 606 comprises a left transmission housing 6202 and a right transmission housing 6201 which are fixed through bolts, and the walking power output shaft assembly 607 is in transmission with the power input shaft through the transmission shaft 608.

What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.

Claims (3)

1. A one-way clutch structure on a gearbox of a small rice transplanter is characterized in that: comprises a transmission case (606), and a half shaft component, a first transmission shaft component and a second transmission shaft component which are all arranged in the transmission case (606),

the variable speed shaft assembly comprises a shaft (601), a shaft travelling gear (6306) fixed on the shaft (601), and a shaft inserting one-way gear (6304) arranged on the shaft (601) through a one-way bearing (6305),

the speed-changing dual-shaft assembly comprises a dual shaft (602), a dual-shaft speed-changing large gear (6307), a dual-shaft speed-changing small gear (6309), a dual-shaft walking gear (6310) and an inserting dual gear (6311) which are all arranged on the dual shaft (602),

the half shaft assembly comprises a half shaft, a half shaft gear (6302) and a first pitch gear (6501) which are fixed on the half shaft,

the one-shaft transmission device is characterized in that the one shaft (601) and the two shafts (602) are in meshed transmission through a one-shaft traveling gear (6306) and a two-shaft variable-speed large gear (6307) or a two-shaft variable-speed small gear (6309), a one-shaft inserting one-way gear (6304) on the one shaft (601) and an inserting double-link gear (6311) on the two shafts (602) are inserted and implanted into the one shaft, and the inserting double-link gear (6311) on the two shafts (602) is also meshed with a half shaft gear (6302) on a half shaft, so that the half shaft is driven.

2. The one-way clutch structure on the gearbox of the small rice transplanter as claimed in claim 1, wherein: and a second oilless bearing (6303) is arranged between the half shaft gear (6302) and the transmission housing (606).

3. The one-way clutch structure on the gearbox of the small rice transplanter as claimed in claim 1, wherein: the transmission housing (606) includes a left transmission housing (6202) and a right transmission housing (6201) secured by bolts.

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