CN201187556Y

CN201187556Y - Minitype cultivator shaft transmission device

Info

Publication number: CN201187556Y
Application number: CNU2008200981905U
Authority: CN
Inventors: 陈万荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-30
Filing date: 2008-04-30
Publication date: 2009-01-28
Anticipated expiration: 2018-04-30

Abstract

The utility model relates to a shaft driving device of a miniature cultivating machine. An output shaft is arranged on a lower driving box through a bearing, an input shaft extends from the upper part of an upper driving box and is supported by a bearing, and a variable shaft and a middle shaft are respectively arranged at the middle part and the lower part in the upper driving box through bearings, wherein, a shifting gear on the variable shaft is meshed with a shifting gear on the input gear, and a synchronous gear on the variable shaft is meshed with a middle gear on the middle shaft; the upper driving box and the lower driving box are connected through a driving shaft, the upper end of the driving shaft extends into the upper driving box from bottom to top and is supported by a bearing and sleeved with a secondary bevel gear, and the secondary bevel gear is meshed with a first bevel gear on the middle shaft; the lower end of the driving shaft extends into the lower driving box from top to bottom and is supported through a bearing and sleeved with a third bevel gear, and the third bevel gear is meshed with an output gear on the output shaft. The utility model has the advantages that the structure is simple, both the installation and the maintenance are easy, the power loss is little, the impact resistance is strong, and the performance is stable and reliable.

Description

Miniature cultivator shaft drive

Technical field

The utility model relates to a kind of miniature cultivator, relates in particular to miniature cultivator shaft drive.

Background technique

At present, the transmission device of miniature cultivator generally is made of parts such as input shaft, shift gear, shift fork, transmission case body, variable-speed shaft, variable block gear, synchromesh gear, jack shaft, intermediate gear and output shafts, wherein input shaft, variable-speed shaft, jack shaft and output shaft are bearing on the transmission case body by bearing respectively, shift gear on the input shaft can with the variable block gear engagement on the variable-speed shaft, with the intermediate gear engagement on coaxial mounted synchromesh gear of variable block gear and the jack shaft, pass through chain or full-depth tooth transmission between jack shaft and the output shaft.The power of motor drives the input shaft rotation, shift gear on the input shaft is by the rotation of variable block gear driven variable-speed shaft, synchromesh gear on the variable-speed shaft drives jack shaft by intermediate gear and rotates, and jack shaft makes the tillage implements running that is connected with output shaft by chain or organize driving gear more and drive output shaft.Take turns transferring power owing to adopt chain or multiple sets of teeth between jack shaft and the output shaft, not only complex structure, cost height, installation and maintenance difficulty, and kinetic equation loss is bigger, impact resistance is little, when meeting obstructions in the farming, if adopt chain-driven 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, and security incident happens occasionally, when serious even can cause the fatal crass.

The model utility content

Technical problem to be solved in the utility model is to provide that a kind of kinetic equation loss is little, the miniature cultivator shaft drive of strong shock resistance.

The technical solution of the utility model is as follows: a kind of miniature cultivator shaft drive, comprise transmission case body, input shaft, shift gear, variable-speed shaft, the variable block gear, synchromesh gear, jack shaft, intermediate gear and output shaft, its key is: described transmission case body is divided into, the upper gear box body of following layout and underdrive casing, on the underdrive casing, pass through the Bearing Installation output shaft, described input shaft stretches into from the top of upper gear box body, and support by bearing, middle part in the upper gear box body and bottom are respectively by Bearing Installation variable-speed shaft and jack shaft, wherein the variable block gear on the variable-speed shaft can mesh with the shift gear on the input shaft, synchromesh gear on the variable-speed shaft and the engagement of the intermediate gear on the jack shaft; Connect by transmission shaft between the described upper and lower transmission case body, the upper end of this transmission shaft is stretched in the upper gear box body from lower to upper, by the bearing supporting, and suit second bevel gear, first bevel gear engagement on this second bevel gear and the jack shaft; The lower end of described transmission shaft is stretched in the underdrive casing from top to bottom, by the bearing supporting, and suit third hand tap gear, the output gear engagement on this third hand tap gear and the output shaft.

Adopt above technological scheme, the power of motor drives the input shaft rotation, shift gear on the input shaft is by the rotation of variable block gear driven variable-speed shaft, synchromesh gear on the variable-speed shaft drives jack shaft by intermediate gear and rotates, and first bevel gear on the jack shaft drives the transmission shaft rotation by second bevel gear, third hand tap gear on the transmission shaft drives output shaft by output gear, makes the tillage implements running that is connected with output shaft.Because by the transmission shaft transferring power, compare with traditional chain-driven or full-depth tooth transmission between the upper and lower transmission case body, the utility model is simple in structure, installation and maintenance are easy, kinetic equation loss is little, strong shock resistance, and stable and reliable for performance.

In order to strengthen protection to transmission shaft, between above-mentioned upper and lower transmission case body, be fixedly connected with sleeve pipe, described transmission shaft passes from this sleeve pipe.

The beneficial effects of the utility model are:

1, 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.

2, simple in structure, installation and maintenance are convenient, and volume is little, and is in light weight, greatly reduces cost of production.

3, power can need be selected diesel engine or petrol engine arbitrarily for use with the client, and variable block is easy to operate, laborsaving.

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, transmission case body is divided into the upper gear box body 1 and the underdrive casing 2 of upper and lower layout, input shaft 3 horizontal arrangement, one end of input shaft 3 is connected with motor (not drawing among the figure), the other end stretches into from the top of upper gear box body 1, and is bearing on the upper gear box body 1 by two bearings 19.Be positioned at suit shift gear 4 on the axle body of upper gear box body 1 at input shaft 3, both splines connect, and shift gear 4 can slippage on input shaft 3.Middle part in upper gear box body 1 and bottom are respectively equipped with variable-speed shaft 5 and jack shaft 8, variable-speed shaft 5 is all parallel with input shaft 3 with jack shaft 8, wherein the two ends of variable-speed shaft 5 are bearing on the upper gear box body 1 by bearing 20, the middle part suit variable block gear 6 of this variable-speed shaft 5.Described variable block gear 6 and shift gear 4 are bidentate dish structure, have large and small two different fluted discs separately.Declutch shift shaft 17 is installed above input shaft 3, declutch shift shaft 17 is parallel with input shaft 3, the sleeve pipe kink of shift fork 18 upper ends is on declutch shift shaft 17, the fork of shift fork 18 lower ends snaps in the annular groove on shift gear 4 circumference, the middle part of shift fork 18 is connected with drag-line mechanism (not drawing among the figure), can drive shift fork 18 slippage on declutch shift shaft 17 by drag-line mechanism, shift fork 18 is stirred shift gear 4 slippage on input shaft 3, make the small tooth plate engagement of the large fluted disc and the variable block gear 6 of shift gear 4, the perhaps large fluted disc of the small tooth plate of shift gear 4 and variable block gear 6 engagement.

As can be known from Fig. 1, the two ends of jack shaft 8 are bearing on the upper gear box body 1 by bearing 21, position at jack shaft 8 two ends near bearing is set with first bevel gear 12 and intermediate gear 9, wherein intermediate gear 9 meshes with the synchromesh gear 7 that is installed on the variable-speed shaft 5, and synchromesh gear 7 is positioned at the next door of variable block gear 6.Transmission shaft 11 arranges that vertically transmission shaft 11 passes from sleeve pipe 16, sleeve pipe 16 and is fixedlyed connected with upper and lower transmission case body 1,2 between upper and lower transmission case body 1,2.The upper end of transmission shaft 11 is stretched in the upper gear box body 1 from lower to upper, by bearing 22 supportings, and suit second bevel gear 13, first bevel gear, 12 engagements on this second bevel gear 13 and the jack shaft 8.The lower end of transmission shaft 11 is stretched in the underdrive casing 2 from top to bottom, by bearing 23 supportings, and suit third hand tap gear 14, output gear 15 engagements on this third hand tap gear 14 and the output shaft 10.Described output shaft 10 is parallel with input shaft 3, and is bearing on the underdrive casing 2 by two bearings 24, and stretch out respectively outside the underdrive casing 2 at the two ends of output shaft 10, and be connected with tillage implements.

The utility model is work like this:

The power of motor drives input shaft 3 rotations, shift gear 4 on the input shaft 3 drives variable-speed shaft 5 rotations by variable block gear 6, synchromesh gear 7 on the variable-speed shaft 5 drives jack shaft 8 by intermediate gear 9 and rotates, and first bevel gear 12 on the jack shaft 8 drives transmission shaft 11 rotations by second bevel gear 13, third hand tap gear 14 on the transmission shaft 11 drives output shaft 10 by output gear 15, makes the tillage implements running that is connected with output shaft 10.Since pass through transmission shaft 11 transferring power between the upper and lower transmission case body 1,2, little, the strong shock resistance of kinetic equation loss, stable and reliable for performance, keep in repair more convenient.

Claims

1, a kind of miniature cultivator shaft drive, comprise transmission case body, input shaft (3), shift gear (4), variable-speed shaft (5), variable block gear (6), synchromesh gear (7), jack shaft (8), intermediate gear (9) and output shaft (10), it is characterized in that: described transmission case body is divided into, the upper gear box body (1) of following layout and underdrive casing (2), go up by Bearing Installation output shaft (10) at underdrive casing (2), described input shaft (3) stretches into from the top of upper gear box body (1), and support by bearing, middle part in upper gear box body (1) and bottom are respectively by Bearing Installation variable-speed shaft (5) and jack shaft (8), wherein the variable block gear (6) on the variable-speed shaft (5) can mesh with the shift gear (4) on the input shaft (3), intermediate gear (9) engagement on synchromesh gear (7) on the variable-speed shaft (5) and the jack shaft (8); Connect by transmission shaft (11) between the described upper and lower transmission case body (1,2), the upper end of this transmission shaft (11) is stretched in the upper gear box body (1) from lower to upper, support by bearing, and suit second bevel gear (13), first bevel gear (12) engagement on this second bevel gear (13) and the jack shaft (8); The lower end of described transmission shaft (11) is stretched in the underdrive casing (2) from top to bottom, by the bearing supporting, and suit third hand tap gear (14), output gear (15) engagement on this third hand tap gear (14) and the output shaft (10).

2, miniature cultivator shaft drive according to claim 1 is characterized in that: be fixedly connected with sleeve pipe (16) between described upper and lower transmission case body (1,2), described transmission shaft (11) passes from this sleeve pipe (16).