CN203646002U

CN203646002U - Transmission case of micro ploughing machine

Info

Publication number: CN203646002U
Application number: CN201320842554.7U
Authority: CN
Inventors: 王德良; 罗清明
Original assignee: Jiaxing Chongqing Industrial Co Ltd
Current assignee: Jiaxing Chongqing Industrial Co Ltd
Priority date: 2013-12-19
Filing date: 2013-12-19
Publication date: 2014-06-18
Anticipated expiration: 2023-12-19

Abstract

The utility model relates to a transmission case of a micro ploughing machine. The transmission case comprises a case body, wherein a clutch for regulating gear shifting, a main shaft, an auxiliary shaft with auxiliary shaft gears, a driving shaft with a transmission gear, an input gear and a reversing gear, and an output shaft with an output gear; triple gears are arranged on the main shaft; a fast-tap gear, a middle-tap gear and a slow-tap gear meshed with the triple gears are arranged on the auxiliary shaft. The transmission case has the advantages of simplicity, practicability, and flexibility in speed transformation, and can meet power requirements on complex environments.

Description

Transmission box for tiller

Technical field

The utility model relates to a kind of mini-size tillage machine parts, particularly a kind of transmission box for tiller.

Background technology

Mini-size tillage machine be according to the farmland in the vast hills of China and mountain area have that plot is little, the discrepancy in elevation is large, without the feature of tractor road, the small-scale agricultural machinery designing for orchard, vegetable plot, green house, hilly upland and the operation of fritter field specially.It has lightweight, and volume is little, simple in structure, easy to operate, and for ease of maintenaince, working stability is reliable, long service life, and oil consumption is low, production efficiency high.

At present, mini-size tillage machine transmission system adopts the structure of motor driven gear transmission mostly, and due to the small volume of mini-size tillage machine casing, the gear of installing in casing mostly at present is duplex-gear drive mechanism.Its structure mainly comprises casing, in described casing, be provided with change the clutch of gear, with the main shaft of duplex-gear, with the countershaft of countershaft tooth and fast shelves tooth and slow shelves tooth, with the driving shaft of driving cog and input tooth and reverse gear tooth, with the output shaft of output gear, duplex-gear is meshed with fast shelves tooth, slow shelves tooth, reverse gear tooth, countershaft tooth is meshed with driving cog, and input tooth is meshed by gear with output gear.

This structure has greatly been improved the unicity of single-stage driving structure transferring power, less but speed change gear is thrown away, and speed changes underaction, is difficult to meet the power demand under complex environment.

Utility model content

In prior art, transmission box for tiller speed change gear is less, be difficult to the problem of the technology that meets the power demand under complex environment, the utility model provides a kind of transmission box for tiller, this transmission case by arranging three teeth on main shaft, the fast shelves tooth being meshed with three teeth, middle-grade tooth, low-grade tooth are set on countershaft, realize the power demand under complex environment.

To achieve these goals, the utility model provides a kind of transmission box for tiller, comprise casing, in described casing, be provided with the clutch, main shaft of regulation stall conversion, with the countershaft of countershaft tooth, with the driving shaft of driving cog and input tooth and reverse gear tooth, with the output shaft of output gear, three teeth are set on described main shaft, the fast shelves tooth being meshed with three teeth, middle-grade tooth, slow shelves tooth are set on described countershaft.

Preferably, be also provided with the I axle of I level tooth, with the II axle of II level tooth in described casing, described input tooth is meshed with output gear by I level tooth, II level tooth.

Preferably, described clutch comprises declutch shift shaft, is arranged on the shift fork that connects of matching with three teeth on declutch shift shaft, is arranged on the gear groove on declutch shift shaft and is fastened on steel ball and the spring on gear groove.

Preferably, described casing is mutually fastened and is bolted by two and half shells and forms.

Useful technique effect of the present utility model is:

Transmission box for tiller of the present utility model is simple in structure, practical, and velocity transformation is flexible, meets the power demand of mini-size tillage machine under complex environment.

Brief description of the drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is Fig. 1 vertical view.

Reference numeral

1. casing 2. clutch 3. main shaft 4. 3 teeth

5. 7. fast grades of teeth of countershaft tooth 6. countershaft, 8. middle-grade teeth

9. slow grade of tooth 10. driving cogs 11. are inputted tooth 12. reverse gear teeth

13. driving shaft 14. output gear 15 output shaft 16.I level teeth

17.I axle 18. II level tooth 19. II axle 21. declutch shift shafts

22. shift fork 23. gear groove 24. steel ball 25. springs.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

As illustrated in fig. 1 and 2, transmission box for tiller, comprise casing 1, described casing 1 is mutually fastened and is screwed by two and half shells and forms, in casing 1, be provided with the clutch 2, main shaft 3 of regulation stall conversion, with the countershaft 6 of countershaft tooth 5, with the driving shaft 13 of driving cog 10 and input tooth 11 and reverse gear tooth 12, with the output shaft 15 of output gear 14, three teeth 4 are set on described main shaft 3, the fast shelves tooth 7, middle-grade tooth 8, the slow shelves tooth 9 that are meshed with three teeth 4 are set on described countershaft 6.

As shown in Figure 1, be also provided with the I axle 17 of I level tooth 16, with the II axle 19 of II level tooth 18 in casing 1, described input tooth 11 is meshed with output gear 14 by I level tooth 16, II level tooth 18.

As shown in Figure 2, clutch 2 comprises declutch shift shaft 21, is arranged on the shift fork 22 that connects of matching with three teeth 4 on declutch shift shaft 21, is arranged on the gear groove 23 on declutch shift shaft 21 and is fastened on steel ball 24 and the spring 25 on gear groove 23.

Further illustrate transmission case power transmission process below in conjunction with accompanying drawing.

While entering grade, three teeth 4 are respectively by being meshed with fast shelves tooth 7, middle-grade tooth 8, slow shelves tooth 9, drive countershaft 6 and countershaft tooth 5 to rotate, countershaft tooth 5 drives driving shaft 13 and input tooth 11 to rotate by driving cog 10 again, input tooth 11 passes to output gear 14 through I level tooth 16, II level tooth 18 successively by power, and output shaft 15 is rotated.In this this process, reverse gear tooth 12 dallies.

When reverse gear, three teeth 4 are meshed with reverse gear tooth 12, the power of main shaft 3 drives reverse gear tooth 12 to rotate by three teeth 4, reverse gear tooth 12 drives countershaft 6 and countershaft tooth 5 to rotate by fast shelves tooth 7, countershaft tooth 5 drives driving shaft 13 and input tooth 11 to rotate by driving cog 10 again, input tooth 11 passes to output gear 14 through I level tooth 16, II level tooth 18 successively by power, and output shaft 15 is rotated.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims

1. a transmission box for tiller, comprise casing (1), in described casing (1), be provided with the clutch (2) of regulation stall conversion, main shaft (3), with the countershaft (6) of countershaft tooth (5), with the driving shaft (13) of driving cog (10) and input tooth (11) and reverse gear tooth (12), with the output shaft (15) of output gear (14), it is characterized in that: three teeth (4) are set on described main shaft (3), the upper fast shelves teeth (7) that are meshed with three teeth (4) that arrange of described countershaft (6), middle-grade tooth (8), slow shelves teeth (9).

2. transmission box for tiller according to claim 1, it is characterized in that: in described casing (1), be also provided with the I axle (17) of I level tooth (16), with the II axle (19) of II level tooth (18), described input tooth (11) is meshed with output gear (14) by I level tooth (16), II level tooth (18).

3. transmission box for tiller according to claim 1, is characterized in that: described clutch (2) comprises declutch shift shaft (21), is arranged on the shift fork (22) of the upper connection that matches with three teeth (4) of declutch shift shaft (21), is arranged on the gear groove (23) on declutch shift shaft (21) and is fastened on steel ball (24) and the spring (25) on gear groove (23).

4. transmission box for tiller according to claim 1, is characterized in that: described casing (1) is mutually fastened and is bolted by two and half shells and forms.