CN210726054U - Multifunctional gear box with reverse gear function for mowing vehicle - Google Patents

Abstract

The utility model discloses a multi-functional automobile-used area of mowing function gear box that reverses gear, including gear shift drum, declutch shift axle, main shaft and countershaft, gear shift drum is last to have set gradually preceding gear shift drum slide and back gear shift drum slide after to from before, and the foremost end of gear shift drum is equipped with sector gear, be equipped with back shift fork, back shift fork spring, preceding shift fork and preceding shift fork spring after to from before in proper order on the declutch shift axle, the side of main shaft has main shaft reverse gear sprocket, main shaft high-speed gear and main shaft low-speed gear along rigid connection in proper order after to from before. This multi-functional for car of mowing takes function gear box of reversing gear can realize the multistage gear that gos forward under the lawn ground of difference and the load condition to and the free switching between the neutral gear is reversed, and is compact reasonable, and the function is various, and is convenient high-efficient, can satisfy the actual demand of car of mowing in different environment.

Description

Multifunctional gear box with reverse gear function for mowing vehicle

Technical Field

The utility model relates to a garden machine technical field specifically is a multi-functional automobile-used area of mowing function gear box that reverses gear.

Background

With the promotion and construction of the comprehensive well-being society, the pursuit of people for good living environment is continuously strengthened, and therefore, the landscaping industry is increasingly developed. The market demand for garden machine products, including multi-function lawn mowers with gearboxes, is also growing rapidly year after year. The traditional hand-held garden machine tool needs to consume a large amount of human resources and has low efficiency; the multifunctional mowing vehicle with the gear box mainly utilizes the high-speed rotation of an engine to drive an output shaft of the gear box to walk and simultaneously drive a blade to cut. Saves a large amount of labor cost and is efficient, thereby being widely applied to the landscaping industry.

A gearbox structure of a mowing vehicle commonly used in the market is mainly structurally characterized in that a worm gear and worm reduction box is adopted, power of an engine is input through a worm, the worm rotates at a high speed, the worm is meshed with the worm to drive a worm wheel to rotate and reduce the speed, the worm wheel is fixedly assembled on a wheel shaft through a pin shaft, and when the worm wheel and the wheel shaft are fixedly assembled, synchronous rotation of the wheel shaft is finally realized, so that the mowing vehicle is pushed to walk. The structure is simple, but the function is single; the mower can only move forward without multi-stage forward gears and reverse gear functions, and cannot meet the actual requirements of the mower in different environments.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a multi-functional automobile-used area of mowing function gear box that reverses gear, can realize the multistage gear that gos forward under the lawn ground of difference and the load condition to and the free switching between the neutral is reversed gear, compact reasonable, the function is various, and is convenient high-efficient, can satisfy the actual demand of car of mowing in different environment, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multi-functional for lawn mower take functional gear box of reversing gear, includes shift drum, declutch shift axle, main shaft and countershaft, shift drum goes up and has set gradually preceding shift drum slide and back shift drum slide after to from the front on the shift drum, and the foremost end of shift drum is equipped with sector gear, be equipped with back shift fork, back shift fork spring, preceding shift fork and preceding shift fork spring after to from the front on the declutch shift axle in proper order, the side of main shaft has main shaft reverse gear sprocket, main shaft high-speed gear and main shaft low-speed gear along rigid connection in proper order after to from the front, the countershaft has countershaft reverse gear sprocket, shift fork gear sliding sleeve, countershaft high-speed gear, shift fork sliding sleeve and countershaft low-speed gear along floating connection in proper order after to from the front, and main shaft reverse gear sprocket and countershaft reverse gear sprocket pass through.

As a preferred technical scheme of the utility model, shift fork sliding sleeve and countershaft low-speed gear can follow the axial direction removal of countershaft, and shift fork sliding sleeve and countershaft low-speed gear only have a rotational degree of freedom.

As a preferred technical scheme of the utility model, countershaft reverse gear sprocket, countershaft high-speed gear and countershaft low-speed gear only have one degree of freedom of rotation for the countershaft.

As an optimal technical scheme of the utility model, shift fork gear sliding sleeve meshes with its subordinate drive gear all the time to final transmission power arrives the wheel.

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

the utility model discloses the multi-functional automobile-used area of mowing of example is reversed and is kept off function gear box can realize the multistage gear that gos forward under the lawn ground of difference and the load condition to and the free switching between the neutral is reversed, and is compact reasonable, and the function is various, and is convenient high-efficient, can satisfy the actual demand of mowing the car in different environment.

Drawings

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

FIG. 2 is a schematic side view of the structure of FIG. 1 in neutral gear according to the present invention;

fig. 3 is a schematic side view of fig. 1 when parking the car stop according to the present invention.

In the figure: 1 shift drum, 2 shift fork shafts, 3 main shafts, 4 auxiliary shafts, 5 sector gears, 6 front shift fork springs, 7 auxiliary shaft low-speed gears, 8 shift fork sliding sleeves, 9 auxiliary shaft high-speed gears, 10 shift fork gear sliding sleeves, 11 auxiliary shaft reverse gear chain wheels, 12 rear shift forks, 13 rear shift drum slide ways, 14 rear shift fork springs, 15 front shift forks, 16 front shift drum slide ways, 17 main shaft reverse gear chain wheels, 18 main shaft low-speed gears and 19 main shaft high-speed gears.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a multi-functional for lawn mower take reverse gear function gear box, including shift drum 1, declutch shift shaft 2, main shaft 3 and countershaft 4, shift drum 1 is last to have set gradually preceding shift drum slide 16 and back shift drum slide 13 from the front to the back, and shift drum 1's foremost end is equipped with sector gear 5, and external equipment drives sector gear 5 and rotates, and sector gear 5 drives shift drum 1 and rotates, thereby makes shift drum 1 drive preceding shift drum slide 16 and back shift drum slide 13 rotate, is convenient for control back shift fork 12 and preceding shift fork 15.

The shifting fork shaft 2 is sequentially provided with a rear shifting fork 12, a rear shifting fork spring 14, a front shifting fork 15 and a front shifting fork spring 6 from front to back, the side surface of the main shaft 3 is sequentially and rigidly connected with a main shaft reverse gear chain wheel 17, a main shaft high-speed gear 19 and a main shaft low-speed gear 18 from front to back, the rear shifting drum slide way 13 and the front shifting drum slide way 16 respectively control the rear shifting fork 12 and the front shifting fork 15 to axially move on the shifting fork shaft 2, and when the rear shifting fork 12 and the front shifting fork 15 axially move on the shifting fork shaft 2, the rear shifting fork 12 and the front shifting fork 15 respectively extrude the rear shifting fork spring 14 and the front shifting fork spring 6.

The auxiliary shaft 4 is connected with an auxiliary shaft reverse sprocket 11, a shifting fork gear sliding sleeve 10, an auxiliary shaft high-speed gear 9, a shifting fork sliding sleeve 8 and an auxiliary shaft low-speed gear 7 in sequence from front to back in a floating mode, the main shaft reverse sprocket 17 and the auxiliary shaft reverse sprocket 11 are connected through a transmission chain, the shifting fork sliding sleeve 8 and the auxiliary shaft low-speed gear 7 can move in the axial direction of the auxiliary shaft 4, the shifting fork sliding sleeve 8 and the auxiliary shaft low-speed gear 7 only have one rotational degree of freedom, the auxiliary shaft reverse sprocket 11, the auxiliary shaft high-speed gear 9 and the auxiliary shaft low-speed gear 7 only have one rotational degree of freedom relative to the auxiliary shaft 4, and the shifting fork gear sliding sleeve 10 is always meshed with a; when the rear shifting fork 12 and the front shifting fork 15 axially move on the shifting fork shaft 2, the shifting fork sliding sleeve 8 and the shifting fork gear sliding sleeve 10 can be driven to axially move on the auxiliary shaft 4.

Whole multi-functional for car gear box of taking reverse gear function of mowing can realize the multistage gear that gos forward under the lawn ground of difference and the load condition to and the free switching between the neutral gear of reversing, and is compact reasonable, and the function is various, and is convenient high-efficient, can satisfy the actual demand of car of mowing in different environment

When in use:

the speed change control mechanism is provided with 5 gears which are respectively a low forward speed, a high forward speed, a neutral gear, a reverse gear and a parking gear, and the gear shift drum 1 is rotated by driving the sector gear 5 to rotate; the rear shift drum slideway 13 and the front shift drum slideway 16 respectively control the rear shifting fork 12 and the front shifting fork 15 to axially move on the shifting fork shaft 2 and drive the shifting fork sliding sleeve 8 and the shifting fork gear sliding sleeve 10 to axially move on the auxiliary shaft 4.

When the gear is shifted forward, the shifting fork gear sliding sleeve 10 is separated from the counter shaft reverse gear chain wheel 11, and the shifting fork sliding sleeve 8 is jointed with the counter shaft high-speed gear 9 or the low-speed gear 7; when the gear is in a neutral position, the shifting fork gear sliding sleeve 10 is separated from the auxiliary shaft reverse gear chain wheel 11, and the shifting fork sliding sleeve 8 is separated from the auxiliary shaft gear 9 and the auxiliary shaft low-speed gear 7; when the reverse gear is performed, the shifting fork gear sliding sleeve 10 is engaged with the auxiliary shaft reverse gear chain wheel 11, and the shifting fork sliding sleeve 8 is disengaged from the auxiliary shaft gear 9 and the auxiliary shaft low-speed gear 7; when the vehicle is parked, the shifting fork gear sliding sleeve 10 is engaged with the auxiliary shaft reverse gear chain wheel 11, and the shifting fork sliding sleeve 8 is engaged with the high-speed gear 9 or the low-speed gear 7.

The effect of preceding fork spring 6 and back fork spring 14 is: when the shift fork gear sliding sleeve 10 or the shift fork sliding sleeve 8 cannot be engaged with the counter shaft reverse gear sprocket 11 or the counter shaft high-speed gear 9 or the counter shaft low-speed gear 7, that is, at the dead point position, although the rear shift fork 12 or the front shift fork 15 slides in the rear shift drum slide 13 or the front shift drum slide 16, the rear shift fork 12 or the front shift fork 15 cannot move axially, and therefore cannot slide to the gear position of the rear shift drum slide 13 or the front shift drum slide 16 corresponding to the shift operating mechanism. When the vehicle has a slight movement, the auxiliary shaft 4 also slightly rotates, the elastic force of the front shifting fork spring 6 or the rear shifting fork spring 14 enables the gear sliding sleeve 10 or the shifting fork sliding sleeve 8 to be engaged with the auxiliary shaft reverse gear chain wheel 11 or the auxiliary shaft high-speed gear 9 or the auxiliary shaft low-speed gear 7, and then the rear shifting fork 12 or the front shifting fork 15 also slides to the gear position of the rear shift drum slide way 13 or the front shift drum slide way 16 corresponding to the speed change control mechanism.

The utility model discloses can realize the multistage gear that gos forward under the lawn ground of difference and the load condition to and the free switching between the neutral is reversed the fender, it is compact reasonable, the function is various, and is convenient high-efficient, can satisfy the actual demand of car of mowing in different environment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a multi-functional automobile-used area of mowing function gear box that reverses gear, includes shift drum (1), declutch shift shaft (2), main shaft (3) and countershaft (4), its characterized in that: shift drum (1) is gone up and is set gradually preceding shift drum slide (16) and back shift drum slide (13) from the front to the back, and the foremost end of shift drum (1) is equipped with sector gear (5), shift fork axle (2) are gone up and are equipped with back shift fork (12), back shift fork spring (14), preceding shift fork (15) and preceding shift fork spring (6) from the front to the back in proper order, the side of main shaft (3) has main shaft reverse gear sprocket (17), main shaft high-speed gear (19) and main shaft low-speed gear (18) along preceding rigid connection after to in proper order, countershaft (4) have countershaft reverse gear sprocket (11), shift fork gear sliding sleeve (10), countershaft high-speed gear (9), shift fork sliding sleeve (8) and countershaft low-speed gear (7) along floating connection in proper order after to from the front, main shaft reverse gear sprocket (17) and countershaft reverse gear sprocket (11) pass through the driving chain and connect.

2. The multifunctional gearbox with reverse gear function for mower vehicle as claimed in claim 1, wherein: the shifting fork sliding sleeve (8) and the auxiliary shaft low-speed gear (7) can move along the axial direction of the auxiliary shaft (4), and the shifting fork sliding sleeve (8) and the auxiliary shaft low-speed gear (7) only have one degree of freedom of rotation.

3. The multifunctional gearbox with reverse gear function for mower vehicle as claimed in claim 1, wherein: the countershaft reverse sprocket (11), the countershaft high-speed gear (9) and the countershaft low-speed gear (7) have only one rotational degree of freedom with respect to the countershaft (4).

4. The multifunctional gearbox with reverse gear function for mower vehicle as claimed in claim 1, wherein: the shifting fork gear sliding sleeve (10) is always meshed with a lower-level transmission gear of the shifting fork gear sliding sleeve and finally transmits power to the wheel.

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