CN201374898Y

CN201374898Y - Variable transmission mechanism of micro-tillage machine

Info

Publication number: CN201374898Y
Application number: CN200920040062U
Authority: CN
Inventors: 郑长夏; 梁国欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-09
Filing date: 2009-04-09
Publication date: 2010-01-06
Anticipated expiration: 2019-04-09

Abstract

The utility model relates to a variable transmission mechanism of a micro-tillage machine, which comprises a gearbox casing, a clutch shaft supported on the gearbox casing through bearings, transmission shafts and driving shafts at different levels, a clutch gear mounted on the clutch shaft, and transmission gears and driving gears at different levels which are mounted the transmission shafts and the driving shafts at the different levels correspondingly. The clutch shaft is placed on the central line of the gearbox casing in a biased manner; a reverse gear shaft is installed on the gearbox casing on one side of the clutch shaft; the reverse gear shaft is provided with a rack wheel and a pinion wheel; and the pinion wheel is in constant mesh with a rack wheel of a first-level transmission gear mounted on a first-level transmission shaft. The utility model adds the reverse gear shaft and the corresponding wheels on one side of the clutch shaft based on the original variable transmission, so as to achieve the forward gear and the reverse gear functions for the variable transmission mechanism, as a result higher tillage efficiency is obtained.

Description

The mini-size tillage machine variable transmission mechanism

Technical field

The utility model relates to a kind of mini-size tillage machine variable transmission mechanism, belongs to the mini-size tillage machine technical field.

Background technology

The mini-size tillage machine volume is little, variable transmission mechanism is simple, and its output shaft directly is connected with small farm machine, is used for that Plain and mountain area area are little, the operation in irregular plot, to reduce labour intensity.But the variable transmission mechanism of mini-size tillage machine is subjected to the size restrictions of complete machine, usually adopt the vertical shaft gear drive, clutch gear on the clutch shaft and travelling gear at different levels and driven wheel often mesh, mesh with driven wheel after clutch shaft slows down by tertiary gear when diesel engine reaches power again, drive driving shaft and finish walking, plow harrow operation.But each bearing block of shaft type gear drive is arranged in a straight line, in power transmission process, only has deceleration, and does not have the function of reverse gear, because mini-size tillage machine can't backward, causes operation inconvenience, reduces operating efficiency.

Summary of the invention

The purpose of this utility model provides a kind of mini-size tillage machine variable transmission mechanism that also has the reverse gear function.

The utility model is that the technical scheme that achieves the above object is: a kind of mini-size tillage machine variable transmission mechanism, comprise gearbox body, be bearing in clutch shaft on the gearbox body by bearing, power transmission shafts at different levels and driving shaft, be installed in clutch shaft, the clutch gear of correspondence on power transmission shafts at different levels and the driving shaft, travelling gears at different levels and driven wheel, it is characterized in that: described clutch shaft is offset to the center line of gearbox body, and gearbox body is positioned at clutch shaft one side reversing shaft also is installed, have gear wheel and pinion on the reversing shaft, pinion often meshes with the gear wheel that is installed on the first order travelling gear on the first order power transmission shaft

The utility model is on the basis of former speed change transmission, increase reversing shaft and corresponding gear in clutch shaft one side, make variable transmission mechanism have drive shift and reverse gear function, carry out farmland operations such as plow harrow by drive shift, and can realize the backward of mini-size tillage machine by reverse gear, so can improve farming efficient.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

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

Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.

The 1-gearbox body, 1-1-case shell, 1-2-right cap, 1-3-left cap, the 2-clutch shaft, 3-driving shaft, the slow shelves of 4-balladeur train, the slow shelves axle of 5-, 6-pinion, 7-reversing shaft, the 8-gear wheel, 9-clutch gear, 10-first order travelling gear, 11-first order power transmission shaft, 12-second level travelling gear, 13-second level power transmission shaft, 14-third level travelling gear, 15-third level power transmission shaft, 16-driven wheel.

Embodiment

See shown in Fig. 1～2, mini-size tillage machine variable transmission mechanism of the present utility model, comprise gearbox body 1, be bearing in the clutch shaft 2 on the gearbox body 1, power transmission shaft at different levels and driving shaft 3 by bearing, correspondence is equipped with clutch gear 9, travelling gear at different levels and driven wheel 16 on clutch shaft 2, power transmission shaft at different levels and driving shaft 3, and the utility model adopts conventional multi-stage speed-reducing gear.See shown in Figure 2, first order travelling gear 10, second level travelling gear 12 and third level travelling gear 14 are duplicate gear, be installed on the first order travelling gear 10 on the first order power transmission shaft 11 pinion be installed in gear wheel engagement on the second level travelling gear 12 on the second level power transmission shaft 13, pinion on the second level travelling gear 12 and the gear wheel engagement that is installed on the third level travelling gear 14 on the third level power transmission shaft 15, pinion on the last third level travelling gear 14 and driven wheel 16 engagements that are installed on the driving shaft 3, and the colter that drives on the driving shaft 3 rotates.See shown in Fig. 1-2, clutch shaft 2 of the present utility model is offset to the center line of gearbox body 1, and gearbox body 1 is positioned at clutch shaft 2 one sides reversing shaft 7 also is installed, the axle center horizontal plane of reversing shaft 7 and the axle center horizontal plane of clutch shaft 2 are same horizontal plane, have gear wheel 8 and pinion 6 on the reversing shaft 7, gear wheel 8 and pinion 6 are made integral body, or gear wheel 8 and pinion 6 be connected on the reversing shaft 7 by key, and pinion 6 often meshes with gear wheel on the first order travelling gear 10 that is installed on the first order power transmission shaft 11.Gear wheel 8 engagements on clutch gear 9 and reversing shaft 7, make the gear wheel engagement on coaxial pinion 6 and the first order travelling gear 10, second travelling gear 12 through being meshed and the 3rd travelling gear 14 and driven wheel 16 make drive shaft turns, and drive colter counter-rotating walking.

See shown in Fig. 1,2, the top that gearbox body 1 of the present utility model is positioned at clutch shaft 2 also is equipped with slow shelves axle 5, slow shelves balladeur train 4 is installed on the slow shelves axle 5, the slow shelves balladeur train 4 of waiting a moment on the shelves axle 5 often meshes with clutch gear 9, making the axle center connecting line of slow shelves axle 5, reversing shaft 7, first order power transmission shaft 11 and clutch shaft 2 is quadrangle, realize two grades of paces of advancing fast or advancing at a slow speed by mobile clutch gear 9 respectively or slow shelves balladeur train 4, to satisfy the requirement of different ploughing speeds.

See Fig. 1, shown in 2, gearbox body 1 of the present utility model constitutes by case shell 1-1 with by left cap 1-3 and right cap 1-2 that securing member is installed in case shell 1-1 left and right sides both end sides, and left cap 1-3 and right cap 1-2 go up the bearing block of coaxial line welding clutch shaft 2, the bearing block of reversing shaft 7, the bearing block of slow shelves axle 5, the bearing block of the bearing block of power transmission shafts at different levels and driving shaft 3, the bearing block of power transmission shafts at different levels is seen and be Figure 2 shows that first order power transmission shaft 11 bearing blocks, second level power transmission shaft 13 bearing blocks, the bearing block of third level power transmission shaft 15, and the width of case shell 1-1 is at 65-100mm, to simplify the manufacturing process of gearbox body, reduce manufacturing cost.

See shown in Figure 2, before the utility model is normal constantly, clutch gear 9 on the clutch shaft 2 is in neutral position in diagram, after being moved to the left one stroke, clutch gear 9 makes the gear wheel engagement of clutch gear 9 and first order travelling gear 10, power passes to second level power transmission shaft 13 and third level power transmission shaft 15 respectively by second level travelling gear 12, third level travelling gear 14 and driven wheel 16, pass at last on the driving shaft 3, mini-size tillage machine is advanced fast.Continue again to move right behind the one stroke, gear wheel 8 engagements on clutch gear 9 and the reversing shaft 7, coaxial pinion 6 and the gear wheel engagement on the first order travelling gear 10, second travelling gear 12 through being meshed and third level travelling gear 14 and driven wheel 16 pass to second level power transmission shaft 13 and third level power transmission shaft 15 respectively, pass at last on the driving shaft 3, thereby realize reverse speed.

As will advance slow shelves the time, clutch gear on the clutch shaft 29 is in neutral gear and is in normal engagement with slow shelves balladeur train 4 on the slow shelves axle 5, after slow shelves balladeur train 4 moves right one stroke, slow shelves balladeur train 4 simultaneously again with reversing shaft 7 on gear wheel 8 engagements, coaxial pinion 6 and the gear wheel engagement on the first order travelling gear 10, second travelling gear 12 through being meshed and third level travelling gear 14 and driven wheel 16 pass to second level power transmission shaft 13 and third level power transmission shaft 15 respectively again, pass on the driving shaft 3 the slow shelves of realizing advancing at last.

Claims

1, a kind of mini-size tillage machine variable transmission mechanism, comprise gearbox body (1), be bearing in clutch shaft (2) on the gearbox body (1) by bearing, power transmission shafts at different levels and driving shaft (3), clutch shaft (2), power transmission shafts at different levels and driving shaft (3) are gone up correspondence clutch gear (9) are installed, travelling gears at different levels and driven wheel (16), it is characterized in that: described clutch shaft (2) is offset to the center line of gearbox body (1), and gearbox body (1) is positioned at clutch shaft (2) one sides reversing shaft (7) also is installed, have gear wheel (8) and pinion (6) on the reversing shaft (7), pinion (6) often meshes with the gear wheel that is installed on the first order travelling gear (10) on the first order power transmission shaft (11).

2,1 described mini-size tillage machine variable transmission mechanism as requested, it is characterized in that: the top that described gearbox body (1) is positioned at clutch shaft (2) also is equipped with slow shelves axles (5), slow shelves balladeur train (4) is installed on the slow shelves axles (5), wait a moment slow shelves balladeur trains (4) and the normal engagement of clutch gear (9) on the shelves axle (5), the axle center connecting line of slow shelves axle (5), reversing shaft (7), first order power transmission shaft (11) and clutch shaft (2) is a quadrangle.

3,1 described mini-size tillage machine variable transmission mechanism as requested, it is characterized in that: the axle center horizontal plane of the axle center horizontal plane of described reversing shaft (7) and clutch shaft (2) is same horizontal plane.

4,1 described mini-size tillage machine variable transmission mechanism as requested, it is characterized in that: described gearbox body (1) is by case shell (1-1) and be installed in the left cap (1-3) of case shell (1-1) both end sides and right cap (1-2) constitutes, and left cap (1-3) and right cap (1-2) go up the bearing block that coaxial line is welded with clutch shaft (2), power transmission shaft at different levels, driving shaft (3), slow shelves axles (5) and reversing shaft (7), and the width of case shell (1-1) is at 65-100mm.