CN201341308Y

CN201341308Y - Multifunctional gear box of micro-cultivator

Info

Publication number: CN201341308Y
Application number: CNU2008201007949U
Authority: CN
Inventors: 陈万荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-02
Filing date: 2008-12-02
Publication date: 2009-11-11
Anticipated expiration: 2018-12-02

Abstract

The utility model relates to a multifunctional gear box of a micro-cultivator. Both ends of an input shaft respectively extend out of side walls on two sides of a box body, and a high-speed output wheel is installed at the end part of one end of the input shaft; a shaft body of the input shaft positioned in the box body is sheathed with a shift gear which can be engaged with a shift changing gear on a variable shaft; a synchronizing gear on a variable shaft is engaged with an idler wheel on a low-speed output shaft; one end of the low-speed output shaft extends out of the side wall of the box body; the low-speed output shaft is also sheathed with a first bevel gear which is engaged with a second bevel gear at the upper end of a lower output shaft; the lower output shaft is supported on the box body through a bearing; the lower output shaft is perpendicular to the input shaft; and the lower end of the lower output shaft extends out of the bottom surface of the box body. The multifunctional gear box has the advantages of simple structure, convenient operation for installation, maintenance and replacement, low labor intensity of workers and time conservation and labor conservation, and has the characteristics of small power loss, strong shock resistance capacity, stable performance, safety and reliability, small volume, light weight, complete functions and the like.

Description

The multi-functional transmission case of miniature cultivator

Technical field

The utility model relates to a kind of miniature cultivator transmission device, relates in particular to the multi-functional transmission case of miniature cultivator.

Background technology

At present, the transmission device of miniature cultivator generally is made of power shaft, transmission case and output shaft, and transmission mechanism wherein is installed in the transmission case, and transmission mechanism adopts chain drive or two kinds of forms of full-depth tooth transmission, and the deficiency that above-mentioned traditional structure exists is:

1, transmission mechanism complex structure, cost are higher, install and maintenance all very difficult.

2, adopt chain or multiple sets of teeth to take turns transferring power, kinetic equation loss is bigger, impact resistance is little, when meeting obstructions in the farming, if adopt chain drive to be easy to cause the chain fracture, if adopt all-gear drive to be easy to cause gear to break, the reliability of performance is relatively poor, security incident happens occasionally, when serious even can cause the fatal crass.

3, have only an output, function singleness, narrow application range can only be used as farming.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of multi-functional transmission case of miniature cultivator with three outputs.

The technical solution of the utility model is as follows: the multi-functional transmission case of a kind of miniature cultivator, comprise casing and power shaft, its key is: described power shaft is bearing on the casing by bearing, stretch out from the sidewall on casing both sides respectively at the two ends of power shaft, and wherein the end of an end is installed by the high speed output wheel at power shaft; Be positioned at described power shaft on the axle body of casing and be set with shift gear, this shift gear can with the variable block gears engaged on the variable-speed shaft, idler gear engagement on synchromesh gear on the variable-speed shaft and the low speed output shaft, one end of described low speed output shaft stretches out from the sidewall of casing, on the low speed output shaft, also be set with first bevel gear, this first bevel gear meshes with second bevel gear of following output shaft upper end, described output shaft down is bearing on the casing by bearing, this time output shaft and power shaft are perpendicular, and the bottom surface of casing is stretched out in the lower end of following output shaft.

Adopt above technical scheme, the power of engine drives the power shaft rotation by clutch, shift gear on the power shaft is by the rotation of variable block gear driven variable-speed shaft, synchromesh gear on the variable-speed shaft drives the low speed output shaft by idler gear and rotates, and first bevel gear on the low speed output shaft drives output shaft rotation down by second bevel gear.This shows, the utlity model has three outputs: the high speed output wheel on the power shaft can be connected with the spraying or the mechanism of drawing water; The external part of low speed output shaft can be used as the power source of other mechanism; Following output shaft can be connected with tillage implements or road wheel.Make miniature cultivator like this on the basis of conventional art, can increase new function, to satisfy the use needs of different occasions, different condition.Simultaneously, the utility model is simple in structure, installs and keep in repair all to be easy to, compare with traditional chain drive or full-depth tooth transmission, and little, the strong shock resistance of kinetic equation loss, and stable and reliable for performance.

Above-mentioned shift gear and variable block gear are bidentate dish structure, have large and small two different fluted discs separately, shift gear is under the control of shift fork, can mesh by the large fluted disc of himself and the small tooth plate of variable block gear selectively, perhaps mesh by the small tooth plate of himself and the large fluted disc of variable block gear.Above structure makes miniature cultivator have advance gear and a neutral of two friction speeds, can change the size of transmission case body outputting power, adapts to different geographical conditions uses to satisfy mini-size tillage machine.

For the ease of operation, guarantee the reliability of variable block, the fork of above-mentioned shift fork lower end snaps in the annular groove on the shift gear circumference, the casing pipe sleeve of shift fork upper end is contained on the declutch shift shaft, this declutch shift shaft is parallel with power shaft, one end of declutch shift shaft stretches out from the side of casing, and the separation of external part and high speed output wheel is in the both sides of casing.Declutch shift shaft is connected with drag-line mechanism, can drive declutch shift shaft and shift fork moves axially by drag-line mechanism, and shift fork is stirred shift gear slippage on power shaft, to change the engagement object of fluted disc between shift gear and the variable block gear.

Other executing agency arranges for convenience, and the external part of above-mentioned low speed output shaft and high speed output wheel are positioned at the homonymy of casing.

The beneficial effects of the utility model are:

1, simple in structure, install, safeguard and change easy to operately that working strength of workers is little, and time saving and energy saving.

2, little, the strong shock resistance of kinetic equation loss, and stable performance, safe and reliable, the casualty accident of having avoided the peasant when operation, to cause owing to being short of physical strength.

3, volume is little, and is in light weight, greatly reduces production cost.

4, multiple functional, can satisfy the use needs of different occasions; Versatility is very strong, can need select diesel engine or gasoline engine arbitrarily for use with the client, and variable block be easy to operate, laborsaving according to the different high any coupling power of axle.

Description of drawings

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

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, power shaft 2 is horizontally disposed, and is bearing in by two bearings on the left and right tank wall of casing 1.The left end of this power shaft 2 stretches out from the left tank wall of casing 1, and the end suit high speed output wheel 3 of extension, and high speed output wheel 3 is by nut check.High speed output wheel 3 can be belt pulley or sprocket wheel, can be connected with the spraying or the mechanism of drawing water as required.The right-hand member of described power shaft 2 stretches out from the right tank wall of casing 1, is processed with spline on the excircle of this right-hand member, so that be connected with engine by clutch.Be positioned at power shaft 2 on the axle body of casing 1 and be set with shift gear 4, spline is connected between shift gear 4 and the power shaft 2, and shift gear 4 can slippage on power shaft 2.

As can be known from Fig. 1, be provided with the variable-speed shaft 7 and the low speed output shaft 8 that parallel with it successively below power shaft 2, wherein the two ends of variable-speed shaft 7 are bearing on the left and right tank wall of casing 1 by bearing.At the middle part of variable-speed shaft 7 suit variable block gear 5, described variable block gear 5 and shift gear 4 are bidentate dish structure, have large and small two different fluted discs separately.Declutch shift shaft 14 is installed above power shaft 2, and declutch shift shaft 14 is parallel with power shaft 2, and the right-hand member of declutch shift shaft 14 stretches out from the right tank wall of casing 1, and is connected with drag-line mechanism (not drawing among the figure).The casing pipe sleeve of shift fork 13 upper ends is contained on the declutch shift shaft 14, and the fork of shift fork 13 lower ends snaps in the annular groove on shift gear 4 circumference.Can drive declutch shift shaft 14 and shift fork 13 moves axially by drag-line mechanism, shift fork 13 is stirred shift gear 4 slippage on power shaft 2, makes the small tooth plate engagement of the large fluted disc and the variable block gear 5 of shift gear 4; The perhaps large fluted disc of the small tooth plate of shift gear 4 and variable block gear 5 engagement; Perhaps shift gear 4 is between the big small tooth plate of variable block gear 5, and both do not engage.

Also as can be known, the left part of low speed output shaft 8 and right-hand member are bearing in by bearing on the left and right tank wall of casing 1 from Fig. 1, and the left end of low speed output shaft 8 stretches out from the left tank wall of casing 1, and this external part can be used as power source, is connected with other executing agency.Position at low speed output shaft 8 close bearings is set with first bevel gear 11 and idler gear 10, and wherein idler gear 10 meshes with the synchromesh gear 9 that is installed on the variable-speed shaft 7, and synchromesh gear 9 is positioned at the next door of variable block gear 5.Described output shaft 6 down is perpendicular with power shaft 2, the upper end of following output shaft 6 is stretched in the upper box 1 from lower to upper, and by bearing and casing 1 supporting, upper end suit second bevel gear 12 of following output shaft 6, first bevel gear, 11 engagements on this second bevel gear 12 and the low speed output shaft 8.The described lower end of output shaft 6 down is positioned at the below of casing 1, can be connected with tillage implements or road wheel.

The utility model is work like this:

The power of engine drives

power shaft

2 and 3 rotations of high speed output wheel by clutch, and high speed output wheel 3 drives spraying or draws water mechanism's running by belt or chain; Shift gear 4 on the power shaft 2 drives variable-speed shaft 7 rotations by variable block gear 5, and the synchromesh gear 9 on the variable-speed shaft 7 drives low speed output shaft 8 by idler gear 10 and rotates, and makes the executing agency's running that is connected with low speed output shaft 8; First bevel gear 11 on the low speed output shaft 8 drives output shaft 6 rotations down by second bevel gear 12, and following output shaft 6 is given tillage implements or road wheel with transmission of power, to carry out farming or walking.

Claims

1, the multi-functional transmission case of a kind of miniature cultivator, comprise casing (1) and power shaft (2), it is characterized in that: described power shaft (2) is bearing on the casing (1) by bearing, stretch out from the sidewall on casing (1) both sides respectively at the two ends of power shaft (2), and wherein the end of an end is installed by high speed output wheel (3) at power shaft (2); Be positioned at described power shaft (2) on the axle body of casing (1) and be set with shift gear (4), this shift gear (4) can mesh with the variable block gear (5) on the variable-speed shaft (7), idler gear (10) engagement on synchromesh gear (9) on the variable-speed shaft (7) and the low speed output shaft (8), one end of described low speed output shaft (8) stretches out from the sidewall of casing (1), on low speed output shaft (8), also be set with first bevel gear (11), this first bevel gear (11) meshes with second bevel gear (12) of following output shaft (6) upper end, described output shaft (6) down is bearing on the casing (1) by bearing, this time output shaft (6) is perpendicular with power shaft (2), and the bottom surface of casing (1) is stretched out in the lower end of following output shaft (6).

2, the multi-functional transmission case of miniature cultivator according to claim 1, it is characterized in that: described shift gear (4) and variable block gear (5) are bidentate dish structure, have large and small two different fluted discs separately, shift gear (4) is under the control of shift fork (13), can mesh by the large fluted disc of himself and the small tooth plate of variable block gear (5) selectively, perhaps mesh by the small tooth plate of himself and the large fluted disc of variable block gear (5).

3, the multi-functional transmission case of miniature cultivator according to claim 2, it is characterized in that: the fork of described shift fork (13) lower end snaps in the annular groove on shift gear (4) circumference, the casing pipe sleeve of shift fork (13) upper end is contained on the declutch shift shaft (14), this declutch shift shaft (14) is parallel with power shaft (2), one end of declutch shift shaft (14) stretches out from the side of casing (1), and the separation of external part and high speed output wheel (3) is in the both sides of casing (1).

4, according to claim 1 or the multi-functional transmission case of 2 or 3 described miniature cultivators, it is characterized in that: the external part of described low speed output shaft (8) and high speed output wheel (3) are positioned at the homonymy of casing (1).