CN216078161U

CN216078161U - Walking reduction box for grass chopper

Info

Publication number: CN216078161U
Application number: CN202122839050.7U
Authority: CN
Inventors: 张作坤
Original assignee: Shandong Xundi Machinery Co ltd
Current assignee: Rizhao Changyuan Machinery Manufacturing Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-03-18
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a traveling reduction gearbox for a grass chopper, and belongs to the technical field of agricultural machinery. The traveling reduction gearbox for the grass chopper solves the defects that in the prior art, the traveling reduction gearbox for the traditional grass chopper has low mowing efficiency and is difficult to control speed. The main structure of the gear box comprises a gear box body, wherein a first shaft, a second shaft, a third shaft, a gear shifting fork shaft and a clutch shifting fork shaft are arranged on the gear box body, a first shaft sliding gear is arranged on the first shaft, a second shaft gear, a clutch claw and a shaft dual-coupling gear are arranged on the second shaft, a third shaft gear is arranged on the third shaft, the second shaft gear is in meshing transmission connection with the third shaft gear, a gear shifting fork on the gear shifting fork shaft is matched with the first shaft sliding gear, and a clutch shifting fork on the clutch shifting fork shaft is matched with the clutch claw. The utility model is mainly used for agricultural machinery such as a vertical shaft mower and the like.

Description

Walking reduction box for grass chopper

The technical field is as follows:

the utility model belongs to the technical field of agricultural machinery, and particularly relates to a traveling reduction gearbox for a grass chopper.

Background art:

the grass chopper has good mowing efficiency aiming at complicated working conditions such as grass chopping, hillsides, fields and the like, can well avoid obstacles through the flail type blade, has high efficiency, realizes the effects of soil moisture preservation and moisture preservation by smashing grass to cover on the ground, and prevents fire disasters due to the fact that the smashed grass is not easy to ignite.

The existing weeding machines mainly comprise a mower and the like, the mowing efficiency is low in a complex plot, blades are easy to damage, an existing walking reduction box cannot be controlled through a clutch, gears are not arranged, especially when the plot is small, steering, walking and stopping are needed at any time, and the existing rotating speed is high and inconvenient to control.

The utility model content is as follows:

the utility model aims to overcome the defects of the prior art and provides a traveling reduction gearbox for a grass chopper, which has the advantages of simple structure and high efficiency and can be better adapted to the grass chopper.

In order to realize the purpose, the utility model is realized by adopting the following technical scheme:

a traveling reduction gearbox for a grass chopper comprises a reduction gearbox body, wherein a first shaft, a second shaft, a third shaft, a gear shifting fork shaft and a clutch shifting fork shaft are arranged on the reduction gearbox body, a first shaft sliding gear is arranged on the first shaft, a second shaft gear, a clutch claw and a shaft dual-coupling gear are arranged on the second shaft, a third shaft gear is arranged on the third shaft, the second shaft gear is in meshing transmission connection with the third shaft gear, a gear shifting fork on the gear shifting fork shaft is matched with the first shaft sliding gear, and a clutch shifting fork on the clutch shifting fork shaft is matched with the clutch claw.

Preferably, both ends of the third shaft are provided with spline output shafts, and the spline output shafts are provided with main driving gears.

Preferably, one end of the first shaft extending out of the reduction box body is provided with a large belt wheel.

Preferably, the second shaft gear and the second shaft are of an integral structure.

Preferably, the clutch shifting fork shaft is further provided with a first return spring, and the first return spring is installed between the clutch shifting fork and the reduction box body.

Compared with the prior art, the utility model has the beneficial effects that:

1. the speed of a fast gear and a slow gear can be well controlled through the gear shifting fork, the working efficiency is improved through the fast gear, the complex working condition is realized through the slow gear, the starting and the stopping of the machine can be well controlled through the clutch shifting fork, and the grass chopper can be better controlled;

2. simple structure, it is efficient, can better adaptation in garrulous grass machine.

Description of the drawings:

FIG. 1 is a front view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 6 is a cross-sectional view of C-C in fig. 2.

In the figure: 1. a reduction box body; 2. a shaft-sliding gear; 3. a first shaft; 4. a second shaft gear; 5. a clutch pawl; 6. a second shaft; 7. a main drive gear; 8. a splined output shaft; 9. a third shaft; 10. a shaft three gear; 11. a shaft double coupling gear; 12. a large belt pulley; 13. a gear shift fork shaft; 14. a gear shifting fork; 15. a shifting fork shaft positioning sleeve; 16. a second return spring; 17. a clutch shift fork shaft; 18. a reduction box side cover; 19. a shifting fork is clutched; 20. a first return spring; 21. the shaft is provided with a steel wire retainer ring.

The specific implementation mode is as follows:

the utility model is further illustrated by the following specific examples in combination with the accompanying drawings.

Example 1:

as shown in fig. 1-6, a traveling reduction gearbox for a grass chopper comprises a reduction gearbox body 1, wherein a first shaft 3, a second shaft 6, a third shaft 9, a gear shifting fork shaft 13 and a clutch shifting fork shaft 17 are arranged on the reduction gearbox body 1, a first shaft sliding gear 2 is arranged on the first shaft 3, a second shaft gear 4, a clutch claw 5 and a shaft dual-coupling gear 11 are arranged on the second shaft 6, a third shaft gear 10 is arranged on the third shaft 9, the second shaft gear 4 is in meshing transmission connection with the third shaft gear 10, a gear shifting fork 14 is arranged on the gear shifting fork shaft 13, the gear shifting fork 14 on the gear shifting fork shaft 13 is matched with the first shaft sliding gear 2, a clutch shifting fork 19 is arranged on the clutch shifting fork shaft 17, and the clutch shifting fork 19 on the clutch shifting shaft 17 is matched with the clutch claw 5. The second shaft 6 is provided with a second shaft steel retainer 21, the second shaft steel retainer 21 is provided on one side of the second shaft double gear 11, and the position of the second shaft double gear 11 is limited by the second shaft steel retainer 21, thereby preventing the second shaft double gear 11 from running around.

Example 2:

a traveling reduction box for a grass chopper is characterized in that spline output shafts 8 are arranged at two ends of a third shaft 9, and a main driving gear 7 is arranged on each spline output shaft 8.

One end of the first shaft 3 extending out of the reduction box body 1 is provided with a large belt wheel 12. The second shaft gear 4 and the second shaft 6 are of an integral structure.

The clutch shifting fork shaft 17 is further provided with a first return spring 20, the first return spring 20 is installed between the clutch shifting fork 19 and the reduction box body 1, and the clutch shifting fork 19 is located at the original position when not shifted through the first return spring 20.

A reduction box side cover 18 is further installed at one end of the reduction box body 1, a second reset spring 16 is arranged between the reduction box body 1 and the gear shifting fork shaft 13, a shifting fork shaft positioning sleeve 15 is installed between the gear shifting fork 14 and the reduction box body 1, and the gear shifting fork shaft 13 is located at the original position when not being shifted through the second reset spring 16. The other portions are the same as in example 1.

The working principle of the utility model is as follows:

as shown in fig. 4, power is transmitted to the first shaft 3 through the large belt pulley 12, the gear shift fork 14 is shifted, when the left side gear of the first shaft sliding gear 2 is engaged with the left side gear of the second shaft duplex gear 11, the power is transmitted to the second shaft duplex gear 11 through the first shaft sliding gear 2, the second shaft duplex gear 11 rotates, the clutch pawl 5 is separated from the second shaft duplex gear 11, the second shaft duplex gear 11 idles on the second shaft 6, so the power cannot be transmitted downwards continuously, only when the clutch shift fork 19 is shifted to the right, the clutch pawl 5 is combined with the second shaft duplex gear 11, the second shaft duplex gear 11 can transmit the power to the second shaft 6, the second shaft 6 continues to transmit the power to the third shaft 9 through the second shaft gear 4 and the third shaft gear 10, so the power is transmitted to the spline output shaft 8 and the main drive gear 7, and the output is a fast gear;

when the gear shifting fork 14 is shifted to enable the right side gear of the shaft one sliding gear 2 to be meshed with the right side gear of the shaft two-way gear 11, power is transmitted to the shaft two-way gear 11 through the shaft one sliding gear 2 to enable the shaft two-way gear 11 to rotate, the shaft two-way gear 11 idles on the shaft two 6 due to the fact that the clutch claw 5 is separated from the shaft two-way gear 11, the power cannot be transmitted downwards continuously, only when the clutch shifting fork 19 is shifted rightwards to enable the clutch claw 5 to be combined with the shaft two-way gear 11, the shaft two-way gear 11 can transmit the power to the shaft two 6, the shaft two 6 continuously transmits the power to the shaft three 9 through the shaft two gear 4 and the shaft three gear 10, the power is transmitted to the spline output shaft 8 and the main driving gear 7, and the output is slow gear.

Claims

1. The utility model provides a walking reducing gear box for grass chopper, includes reduction box (1), its characterized in that: be equipped with axle one (3), axle two (6), axle three (9), gear shift fork axle (13) and separation and reunion shift fork axle (17) on reduction box (1), be equipped with axle one sliding gear (2) on axle one (3), be equipped with axle two gear (4) on axle two (6), separation and reunion claw (5) and axle two duplicate gear (11), be equipped with axle three gear (10) on axle three (9), axle two gear (4) are connected with axle three gear (10) meshing transmission, gear shift fork (14) and axle one sliding gear (2) cooperation on the gear shift fork axle (13), separation and reunion shift fork (19) and separation and reunion claw (5) cooperation on the separation and reunion shift fork axle (17).

2. The walking reduction box for the grass chopper of claim 1, characterized in that: and spline output shafts (8) are arranged at two ends of the third shaft (9), and main driving gears (7) are arranged on the spline output shafts (8).

3. A walking reduction box for a grass chopper as claimed in claim 1 or 2, characterized in that: one end of the first shaft (3) extending out of the reduction box body (1) is provided with a large belt wheel (12).

4. A walking reduction box for a grass chopper according to claim 3, characterized in that: the second shaft gear (4) and the second shaft (6) are of an integral structure.

5. The walking reduction box for the grass chopper of claim 4, characterized in that: and a first reset spring (20) is further arranged on the clutch shifting fork shaft (17), and the first reset spring (20) is arranged between the clutch shifting fork (19) and the reduction box body (1).