CN103307220A

CN103307220A - Speed changing box for plant protection machinery

Info

Publication number: CN103307220A
Application number: CN201310287233XA
Authority: CN
Inventors: 吴伟; 王学良; 彭玉兰; 马卫东; 靳启锋; 高向锋; 周启飞
Original assignee: Shandong Linyi Lingong Automobile Bridge Box Co Ltd
Current assignee: Shandong Linyi Lingong Automobile Bridge Box Co Ltd
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2013-09-18

Abstract

The invention discloses a speed changing box for plant protection machinery and belongs to the field of speed changing boxes. The speed changing box structurally comprises a speed changer shell with a speed changer upper cover mounted at the top, a shaft I, a shaft II, a shaft III, a final drive idler shaft, a reverse gear idler shaft and an output shaft, the shaft I, the shaft II, the shaft III, the final drive idler shaft, the reverse gear idler shaft and the output shaft are mounted in the speed changer shell, the shaft I is a gear shaft, the outer end of the shaft I is connected with an input shaft through a clutch, the shaft III is mounted on the side face of the shaft I, the shaft II is mounted on the lower right side of the shaft III, the final drive idler shaft is mounted on the lower left side of the shaft III, the reverse gear idler shaft is mounted on the upper right side of the shaft III, the output shaft is arranged right below the shaft III, a first-second gear fork shaft, a third-fourth gear fork shaft, a reverse gear fork shaft and a gear selecting and shifting mechanism are arranged above the shaft III, and the gear selecting and shifting mechanism is mounted right above the third-fourth gear fork shaft. Compared with the prior art, the speed changing box has the advantages of few gears, small gear shifting force, low processing cost, low processing difficulty, high transmission efficiency and the like, and gear arrangement is reasonable, so that out-of-gear phenomenon and gear disordering are effectively avoided.

Description

A kind of equipment for plant protection gearbox

Technical field

The present invention relates to the gearbox field, specifically a kind of equipment for plant protection gearbox.

Background technique

Existing Domestic market equipment for plant protection is mainly external import, and there is following defective in institute's coupling gearbox on it: 1) gear is many, and mating gearbox abroad generally has 9-12 gear, and it is very inconvenient to make the staff operate; 2) it is heavier to mate gearbox shifting power abroad, and the time has been grown the staff and can feel under a strain; 3) mate gearbox abroad and mainly adopt bevel gear engagement, make this gearbox processing difficulties, the cost of production height, gear-driven efficiency is low; 4) gear that mates gearbox is abroad arranged and is not met domestic staff's work habit, makes misoperation to occur through regular meeting in staff's operating process, off-gear or random retaining phenomenon occur.

Summary of the invention

Technical assignment of the present invention is at above deficiency, provide a kind of rational in infrastructure, cost of production is low, the easy and convenient a kind of equipment for plant protection gearbox of operation.

The technical solution adopted for the present invention to solve the technical problems is: this equipment for plant protection comprises that with gearbox the top is equipped with the case of transmission of speed changer loam cake, and be installed in the case of transmission one, two, three, pass idler shaft eventually, idler shaft and output shaft reverse gear, described one is gear shaft, its outer end is connected with input shaft by clutch, one side is equipped with three, three lower right is equipped with two, three left bottom is equipped with and passes idler shaft eventually, the idler shaft that reverses gear is equipped with in three upper right, it is output shaft under three, three tops are provided with one or two retaining fork shafts, three or four retaining fork shafts, reverse gear fork shaft and gear shift mechanism, gear shift mechanism be installed in three or four retaining fork shafts directly over;

Described two is gear shaft, and commonly engaged gear is installed from left to right, three retaining driving gears, two retaining driving gears; Three from left to right are equipped with three or four retaining tooth hub sleeves, three retaining driven gears, two retaining driven gears, one or two retaining tooth hub sleeves, a retaining driven gear, the driven gear that reverses gear, the tooth hub sleeve that reverses gear, three shaftgears; Pass eventually to be equipped with on the idler shaft and pass idle pulley eventually; Reverse gear and the idle pulley that reverses gear is housed on the idler shaft.

Described output shaft is rear and front end output, and output gear is installed on it.

One or two retaining shift forks and one or two retaining gearshift shifting blocks are installed on described one or the two retaining fork shafts; Three or four retaining shift forks and three or four retaining gearshift shifting blocks are installed on three or the four retaining fork shafts; Reverse gear back fork and the gearshift shifting block that reverses gear are installed on the fork shaft.

Described gear shift mechanism comprises main gear level and gearshift seat, the top of main gear level is provided with bulb, the bottom of main gear level is connected with the gearshift seat, the both sides, bottom of main gear level are provided with the return slide block, be provided with spring in the return slide block, the outer end of return slide block is provided with spring capping and gasket, and the top of return slide block is provided with spherical washer and dust ring, and the bottom of dust ring is provided with locating stud and O type circle.

Equipment for plant protection of the present invention is compared with prior art with gearbox, has characteristics:

1) gear is few, only is provided with four forward gears and one and reverses gear, and is convenient to operation, has effectively improved operating efficiency;

2) gearshift power is little, compares with external coupling gearbox, and gearshift power reduces 20%;

3) this gearbox all adopts stud wheel, has effectively reduced processing cost, has reduced difficulty of processing, has improved transmission efficiency;

4) gear is arranged rationally, more meets domestic staff's operating habit, is convenient to operator's gearshift, has effectively avoided off-gear and has disorderly kept off phenomenon.

Description of drawings

The present invention is further described below in conjunction with accompanying drawing.

Accompanying drawing 1 is the structural representation that a kind of equipment for plant protection is used gearbox.

Accompanying drawing 2 is the plan structure schematic representation of accompanying drawing 1.

Accompanying drawing 3 is declutch shift shaft assembly structure schematic representation.

Accompanying drawing 4 is the structural representation of gear shift mechanism.

Among the figure: 1, input shaft, 2, clutch, 3, one, 4, two, 5, commonly engaged gear, 6, three retaining driving gears, 7, two retaining driving gears, 8, three, 9, three or four retaining tooth hub sleeves, 10, three retaining driven gears, 11, two retaining driven gears, 12, one or two retaining tooth hub sleeves, 13, one retaining driven gear, 14, the driven gear that reverses gear, 15, the tooth hub sleeve reverses gear, 16, three shaftgears, 17, pass idler shaft, 18 eventually, pass idle pulley eventually, 19, the idler shaft that reverses gear, 20, the idle pulley that reverses gear, 21, output shaft, 22, output gear, 23, gear shift mechanism, 24, three or four retaining shift forks, 25, one or two retaining shift forks, 26, back fork, 27, case of transmission, 28, three or four retaining gearshift shifting blocks, 29, the speed changer loam cake, 30, the gearshift shifting block that reverses gear, 31, three or four retaining fork shafts, 32, one or two retaining fork shafts, 33, fork shaft reverses gear.

23-1, bulb, 23-2, main gear level, 23-3, spherical washer, 23-4, dust ring, 23-5, locating stud, 23-6, O type circle, 23-7, spring, 23-8, return slide block, 23-9, spring capping, 23-10, gasket, 23-11, gearshift seat.

Embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments.

A kind of equipment for plant protection gearbox of the present invention, its structure comprises that the top is equipped with the case of transmission 27 of speed changer loam cake 29, and be installed in the case of transmission 27 one 3, two 4, three 8, eventually pass idler shaft 17, idler shaft 19 and output shaft 21 reverse gear, output shaft 21 is equipped with output gear 22 for rear and front end output on it; Described one 3 is gear shaft, its outer end is connected with input shaft 1 by clutch 2, one 3 side is equipped with three 8, three 8 lower right is equipped with two 4, three 8 left bottom be equipped with the upper right that passes eventually 17, three 8 of idler shafts be equipped with 19, three 8 of the idler shafts of reversing gear under be output shaft 21, three 8 tops are provided with one or two retaining fork shafts 32, three or four retaining fork shafts 31, reverse gear fork shaft 33 and gear shift mechanism 23, gear shift mechanism 23 be installed in three or four retaining fork shafts 31 directly over.

Described two 4 is gear shaft, and commonly engaged gear 5, three retaining driving gears 6, two retaining driving gears 7 are installed from left to right; Three or four retaining tooth hub sleeves, 9, three retaining driven gears, 10, two retaining driven gears, 11, one two retaining tooth hub sleeves, 12, one retaining driven gears 13 from left to right are installed for three 8, the driven gear 14 that reverses gear, tooth hub sleeve 15, three shaftgears 16 reverse gear; Pass eventually to be equipped with on the idler shaft 17 and pass idle pulley 18 eventually; Reverse gear and the idle pulley 20 that reverses gear is housed on the idler shaft 19.

One or two retaining shift forks 25 and one or two retaining gearshift shifting blocks are installed on described one or the two retaining fork shafts 32; Three or four retaining shift forks 24 and three or four retaining gearshift shifting blocks 28 are installed on three or the four retaining fork shafts 31; Reverse gear and back fork 26 is installed on the fork shaft 33 and reverses gear gearshift shifting block 30.

Described gear shift mechanism 23 comprises main gear level 23-2 and gearshift seat 23-11, the top of main gear level 23-2 is provided with bulb 23-1, the bottom of main gear level 23-2 is connected with gearshift seat 23-11, the both sides, bottom of main gear level 23-2 are provided with return slide block 23-8, be provided with spring 23-7 in the return slide block 23-8, the outer end of return slide block 23-8 is provided with spring capping 23-9 and gasket 23-10, the top of return slide block 23-8 is provided with spherical washer 23-3 and dust ring 23-4, and the bottom of dust ring 23-4 is provided with locating stud 23-5 and O type circle 23-6.

Transfer route is as follows:

One retaining: three 8-of input shaft 1-clutch 2-3-commonly engaged gear 5-two 4-first gears 13-, three shaftgear 16-output gear 22-output shafts 21;

Two retainings: three 8-of two 4-of a 3-commonly engaged gear of input shaft 1-clutch 2-5-, two retaining driving gear 7-two retaining driven gear 11-, three shaftgear 16-output gear 22-output shafts 21;

Three retainings: three 8-of two 4-of a 3-commonly engaged gear of input shaft 1-clutch 2-5-, three retaining driving gear 6-three retaining driven gear 10-, three shaftgear 16-output gear 22-output shafts 21;

Four retainings: 3-three 8-of input shaft 1-clutch 2-three shaftgear 16-output gear 22-output shafts 21;

Reverse gear: two 4-of a 3-commonly engaged gear of input shaft 1-clutch 2-5-idle pulley 20-three 8-of driven gear 14-, three shaftgear 16-output gear 22-output shafts 21 that reverse gear that reverse gear.

Claims

1. equipment for plant protection gearbox, comprise that the top is equipped with the case of transmission of speed changer loam cake, and be installed in the case of transmission one, two, three, pass idler shaft eventually, idler shaft and output shaft reverse gear, it is characterized in that, described one is gear shaft, its outer end is connected with input shaft by clutch, one side is equipped with three, three lower right is equipped with two, three left bottom is equipped with and passes idler shaft eventually, the idler shaft that reverses gear is equipped with in three upper right, it is output shaft under three, three tops are provided with one or two retaining fork shafts, three or four retaining fork shafts, reverse gear fork shaft and gear shift mechanism, gear shift mechanism be installed in three or four retaining fork shafts directly over;

2. equipment for plant protection gearbox according to claim 1 is characterized in that, described output shaft is rear and front end output, and output gear is installed on it.

3. equipment for plant protection gearbox according to claim 1 is characterized in that, one or two retaining shift forks and one or two retaining gearshift shifting blocks are installed on described one or the two retaining fork shafts; Three or four retaining shift forks and three or four retaining gearshift shifting blocks are installed on three or the four retaining fork shafts; Reverse gear back fork and the gearshift shifting block that reverses gear are installed on the fork shaft.

4. equipment for plant protection gearbox according to claim 1; it is characterized in that; described gear shift mechanism comprises main gear level and gearshift seat; the top of main gear level is provided with bulb; the bottom of main gear level is connected with the gearshift seat; the both sides, bottom of main gear level are provided with the return slide block; be provided with spring in the return slide block; the outer end of return slide block is provided with spring capping and gasket; the top of return slide block is provided with spherical washer and dust ring, and the bottom of dust ring is provided with locating stud and O type circle.