CN201382132Y

CN201382132Y - Gear box of micro-cultivator

Info

Publication number: CN201382132Y
Application number: CN200920142339U
Authority: CN
Inventors: 王敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-09
Filing date: 2009-04-09
Publication date: 2010-01-13
Anticipated expiration: 2019-04-09

Abstract

The utility model relates to a gear box of a micro-cultivator, which comprises a case body and five sets of gear shafts. A driving shaft, a gear shaft, a second motion shaft, a gear connecting shaft and an output shaft are arranged inside the gear box; the driving shaft is driven by a belt pulley, three gears are sheathed on the driving shaft and can slide along the axial direction under the action of a shifting yoke to enable the gear on the driving shaft to be correspondingly engaged with the gear on the gear shaft; the gear shaft is normally engaged with the gear of the second motion shaft; the second motion shaft is normally engaged with the gear of the gear connecting shaft; and the gear connecting shaft is engaged with the two gears of the output shaft. The gear box is installed on a multifunctional micro-cultivator, so that the micro-cultivator can conduct rapid or slow rotary cultivation through gearshift by use of the shifting yoke, and also can travel on the road. The gear box has compact overall structure, accurate transmission gear ratio and high reliability.

Description

Miniature cultivator gearbox

Technical field

The utility model relates to the gearbox that uses on a kind of farm machinery, particularly a kind of miniature cultivator gearbox.

Background technique

In the farming operation of fritter, agricultural miniature cultivator is applied to plow or rotary tillage work more and more widely, when plowing work, needs very big retarding ratio; And carry out rotary tillage when work, and its reduction speed ratio is less relatively, and the reduction speed ratio when travelling on highway is littler.Current agricultural miniature cultivator adopts belt pulley or sprocket wheel to carry out transmission and speed change, its stability of transmission is relatively poor, thereby can not utilize the output power of motor most effectively, and it adjusts very trouble, currently used speed changer is also needing to transmit power on the driving wheel less stable of transmission joint by sprocket wheel or belt wheel after the speed change.

The model utility content

The purpose of this utility model is to provide a kind of miniature cultivator gearbox, and it can realize big reduction speed ratio, and can gear shift, satisfy plow, rotary tillage and different output requirements when travelling.

The technological scheme of employing of the present utility model is: a kind of miniature cultivator gearbox, comprise casing and five groups of gear shafts, be provided with driving shaft, shelves axle, the axle of passing a bridge in the gearbox, connect tooth axle and output shaft, be set with three gears on the driving shaft by the belt pulley drive, gear endwisely slips in the effect lower edge of shift fork, the gear mesh on gear on the driving shaft and the shelves axle should be able to be meshed by shift fork; Shelves axles often meshes with a gear on passing a bridge spool; The axle of passing a bridge often meshes with the gear that connects on the tooth axle; Connect the gear engagement on tooth axle and the output shaft.

Miniature cultivator gearbox of the present utility model, described connect be equipped with on the tooth axle two small gears respectively with output shaft on two gear engagement.

The of the present utility model company on the tooth axle is equipped with gearwheel between two parties, and gearwheel is meshed with a gear that is installed on passing a bridge spool.

Miniature cultivator gearbox of the present utility model, stretch out respectively beyond the casing of gearbox at the two ends of described output shaft, and road wheel or Rotary tillage blade can be installed simultaneously in both sides.

Miniature cultivator gearbox of the present utility model, described output shaft and driving shaft and mounted thereto 's gear all adopts splined.

Output shaft of the present utility model has two, and two output shafts are connected with gear respectively in gearbox, and stretch out outside the gearbox respectively the outer end of two output shafts.

This gearbox is installed on the multifunction micro cultivator, by the shift fork gear shift, can makes the rotary tillage fast of this machine, ploughing at a slow speed again can also on the way be travelled, and compact overall structure of the present utility model, gear ratio is accurate, reliability is high.

Description of drawings

Fig. 1 is a gear engagement structural representation of the present utility model;

Fig. 2 is the utility model gear transmission schematic representation.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

As shown in Figure 1 and Figure 2, miniature cultivator gearbox comprises casing 1, shift fork 7 and five groups of gear shafts, be provided with driving shaft 2, shelves axle 3, the axle 4 of passing a bridge in the gearbox 1, connect tooth axle 5 and output shaft, driving shaft 2 is driven by belt pulley 8, be set with three

gears

21,22,23 above,

gear

21,22,23 is in axial sliding at the effect lower edge of shift fork 7 driving shaft 2, can be with

gear

31,32, the 33 corresponding engagements on the gear on the driving shaft 2 21,22,23 and the shelves axle 3 by shift fork 7; Gear 34,41 on the shelves axle 3 and the axle 4 of passing a bridge often meshes; The axle 4 of passing a bridge often meshes with the

gear

41,51 that connects on the tooth axle 5; The both sides that connect the gearwheel 51 on the tooth axle 5 are respectively arranged with two

small gears

52,53, output shaft has two 61,62, two

output shafts

61,62 are connected with

gear

63,64 respectively in gearbox 1,

gear

63,64 on two

output shafts

61,62 respectively with connect tooth axle 5 on two

small gears

52,53 be meshed, stretch out respectively outside the gearbox 1 outer end of two

output shafts

61,62, and road wheel or Rotary tillage blade can be installed respectively in both sides.

This gearbox is installed on the multifunction micro cultivator, by shift fork 7 gear shift, gear 21 and shelves axles on the driving shaft 2 cogged 31 to be meshed, gear 22 on the driving shaft 2 is meshed with gear 32 on the shelves axles, also or the gear 23 on the driving shaft 2 is meshed with gear 33 on the shelves axles, different gear engagement can realize different reduction speed ratio, thereby realize different output speeds and input power, this gearbox is installed on the multifunction micro cultivator, by the shift fork gear shift, can make the rotary tillage fast of this machine, ploughing at a slow speed again, can also on the way travel compact overall structure of the present utility model, gear ratio is accurate, the reliability height.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection domain of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1, a kind of miniature cultivator gearbox, comprise casing and five groups of gear shafts, it is characterized in that: be provided with driving shaft (2), shelves axles (3), gap bridge axle (4) in the gearbox (1), connect tooth axle (5) and output shaft, be set with three gears on the driving shaft (2) by the belt pulley drive, gear endwisely slips in the effect lower edge of shift fork (7), the gear mesh on gear on the driving shaft (2) and the shelves axles (3) should be able to be meshed by shift fork; Gear on the shelves axles (3) and the axle (4) of passing a bridge often meshes; The axle (4) of passing a bridge often meshes with the gear that connects on the tooth axle (5); Connect the gear engagement on tooth axle (5) and the output shaft.

2, miniature cultivator gearbox as claimed in claim 1, it is characterized in that described connect be equipped with on the tooth axle (5) two small gears (52,53) respectively with output shaft on two gears (63,64) engagement.

3, miniature cultivator gearbox as claimed in claim 1 is characterized in that described the company on the tooth axle (5) gearwheel (51) being installed between two parties, and gearwheel (51) is meshed with a gear (41) on being installed in pass a bridge spool (4).

4, miniature cultivator gearbox as claimed in claim 1 or 2 is characterized in that the two ends of described output shaft stretch out the casing of gearbox (1) respectively in addition.

5, miniature cultivator gearbox as claimed in claim 1 is characterized in that described driving shaft (2), output shaft and gear adopt splined.

6, miniature cultivator gearbox as claimed in claim 1, it is characterized in that described output shaft has two (61,62), two output shafts (61,62) are connected with gear (63,64) respectively in gearbox (1), stretch out respectively outside the gearbox (1) outer end of two output shafts (61,62).