CN213981880U

CN213981880U - Two-wheel-drive mini-tiller gearbox

Info

Publication number: CN213981880U
Application number: CN202022541284.9U
Authority: CN
Inventors: 高加林; 高峰
Original assignee: Hunan Xiulin Machinery Co ltd
Current assignee: Hunan Xiulin Machinery Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-08-17
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a machine gearbox is ploughed a little to two drives, include by the continuous driven main tank body of transmission one and axle crossing angle box, by the continuous driven axle crossing angle box of transmission two axles and drive the box, be provided with planetary reducer and planet speed reduction clutch in the main tank body and set up the one end of transmission one, be provided with meshed bevel gear action wheel and bevel gear in the axle crossing angle box and follow the driving wheel, the bevel gear action wheel sets up the other end of transmission one, the bevel gear is in from the driving wheel setting the one end of transmission two axles. The driving box is internally provided with a driving shaft, the driving shaft is provided with a driving bevel gear driven wheel meshed with the driving bevel gear driving wheel, and the driving bevel gear driving wheel is arranged at the other end of the transmission secondary shaft. The gearbox of the two-wheel-drive mini-tiller is simple in structure, small in size, light in weight, low in failure rate and simple to operate and control.

Description

Two-wheel-drive mini-tiller gearbox

Technical Field

The utility model relates to the technical field of agricultural cultivation machinery, in particular to a gearbox of a two-wheel-drive mini-tiller.

Background

The existing two-wheel-drive mini-tiller gearbox on the market is formed by splicing an upper box body made of an aluminum alloy material and a lower box body made of a cast steel material, and the whole weight of the gearbox is lighter than that of a four-wheel-drive mini-tiller, but the requirement of farmers on lighter weight of the mini-tiller cannot be met. The existing two-drive mini-tiller is only provided with two driving wheels, and is matched with a rear plough stopping knife for operation and control during tillage, and the whole weight is heavy, the gravity center is unstable, and manual operation and control are very laborious.

Therefore, a novel gearbox of the mini-tiller needs to be invented to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two drive quick-witted gearbox of ploughing a little to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a directly link four-wheel drive and plough quick-witted gearbox a little, includes by the one driven main tank body and the crossed axes angle box of transmission that links to each other of transmission, by the two driven crossed axes angle box of transmission and drive box, be provided with in the main tank body and all set up the planetary reducer and the planet speed reduction clutch of one end of transmission, be provided with engaged bevel gear action wheel and bevel gear in the crossed axes angle box and follow the driving wheel, the bevel gear action wheel sets up the other end of transmission one end, the bevel gear is followed the driving wheel setting and is in the one end of transmission two. The driving box is internally provided with a driving shaft, the driving shaft is provided with a driving bevel gear driven wheel meshed with the driving bevel gear driving wheel, and the driving bevel gear driving wheel is arranged at the other end of the transmission secondary shaft.

Preferably, the central axis of the main box body and the central axis of the crossed axes box body form an acute angle after being crossed, and the crossed axes angle a is between 45 degrees and 60 degrees.

Preferably, the main box body is connected with the engine, and the height b of the engine and the center point of the driving box body is 150-250 mm.

Preferably, the planetary reducer comprises a sun gear, a planetary disc and an inner gear ring, the sun gear is fixed at the front end of the main shaft of the engine, the planetary disc is mounted on a transmission shaft and provided with a planetary gear, the planetary gear is in meshing transmission with the sun gear, and the inner gear ring surrounds the planetary disc.

Preferably, the planetary reduction clutch comprises a clutch outer ring, a tripod clutch driving plate and a clutch driving plate, the clutch outer ring surrounds the inner gear ring, the tripod clutch driving plate is arranged at the inner circle of the clutch outer ring, and the clutch driving plate is connected with the tripod clutch driving plate.

Preferably, the inner gear ring and the clutch outer ring are in sliding fit, three notches are formed in the inner circle of the clutch outer ring and used for mounting the cylindrical steel balls and three pins of the three-pin clutch driving plate, one end of each notch is slightly smaller than the outer diameter of the cylindrical steel ball, a groove is formed in the end of each notch and used for mounting a spring, the other end of each notch is slightly larger than the outer diameter of the cylindrical steel ball, the cylindrical steel balls are mounted in the notches and can slide in the notches, and the three pins of the three-pin clutch driving plate are mounted at the large ends of the three notches respectively.

Preferably, the planetary disc and the transmission shaft, and the driving bevel gear driven wheel and the driving shaft are all connected by splines; the bevel gear driving wheel and the first transmission shaft, the bevel gear driven wheel and the second transmission shaft, and the driving bevel gear driving wheel and the second transmission shaft are all connected by flat keys.

Preferably, the first transmission shaft is connected with the main box body and the crossed shaft angle box body through first-stage transmission sleeves, and the second transmission shaft is connected with the crossed shaft angle box body and the driving box body through second-stage transmission sleeves.

Compared with the prior art, the beneficial effects of the utility model are that: the gearbox adopts the characteristics of a clutch and a planetary reducer, realizes the clutch function by clamping and separating the cylindrical steel balls and the inner gear rings, all boxes of the gearbox are connected by a transmission sleeve, an engine direct-connection main box body is used for inputting power to the gearbox, an axis-crossing angle box body is connected between the main box body and a driving box body in an axis-crossing mode for transmission, the axial central line of the driving box body is positioned under the gravity center of the engine, the height b between the axial central line of the driving box body and the bottom of the engine can be determined according to the requirement of the actual farming terrain, namely the height b can be changed by adjusting the angle a between the central line of the axis-crossing angle box body and the central line of the main box body to meet the actual farming, the overall structure is simple, the volume is small, the weight is light, the failure rate is low, the operation is simple, the ditching and hilling paddy field operation can be realized, and the travelling wheels can travel on hills and field paths, in the terrain that can't pass, two adults can easily lift up, extensive applicability. The full 'fool' operation is realized by only controlling the clutch handle without any difficulty. Because of light weight, the operation and control are labor-saving in the actual cultivation, and the long-time cultivation is not labor-consuming.

Drawings

FIG. 1 is a schematic structural view of the two-wheel-drive mini-tiller of the present invention with the transmission connected to the engine;

FIG. 2 is a perspective view of the gearbox of the two-wheel-drive mini-tiller of the present invention;

FIG. 3 is a front view of the gearbox of the two-wheel micro-cultivator and a sectional view of the main box body of the gearbox of the two-wheel micro-cultivator;

FIG. 4 is an exploded view of the internal structure of the main box of the gearbox of the two-wheel-drive mini-tiller;

fig. 5 is a broken view of the utility model relates to a two drive and plough the regional disconnection of separation and reunion plectrum in quick-witted gearbox a little.

Description of reference numerals:

1-engine, 2-sun gear, 3-main box, 5-primary transmission sleeve, 6-bevel gear box, 7-secondary transmission sleeve, 8-driving box, 9-tripod clutch driving plate, 10-clutch outer ring, 11-inner gear ring, 12-planetary gear, 13-planetary plate, 14-cylindrical steel ball, 15-spring, 16-driving primary shaft, 17-driving secondary shaft, 18-driving shaft, 19-bevel driving wheel, 20-bevel driven wheel, 21-driving bevel driving wheel, 22-driving bevel driven wheel, 23-engine chassis and 24-clutch driving plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-5, the utility model provides a technical scheme, a two drive quick-witted gearbox of ploughing a little includes that the transmission one 16 that all goes deep into in the main tank body 3 and the crossed axes box 6 links to each other the transmission, by all going deep into the crossed axes box 6 and the transmission two 17 in the drive box 8 links to each other the transmission, planetary reducer and the planet speed reduction clutch that are provided with in the main tank body 3 all set up the one end at transmission one 16, be provided with engaged bevel gear action wheel 19 and bevel gear follow driving wheel 20 in the crossed axes box 6, bevel gear action wheel 19 sets up the other end at transmission one 16, bevel gear follow driving wheel 20 sets up the one end at transmission two 17. A driving shaft 18 is arranged in the driving box body 8, a driving bevel gear driven wheel 22 meshed with the driving bevel gear driving wheel 21 is arranged on the driving shaft 18, and the driving bevel gear driving wheel 21 is arranged at the other end of the transmission secondary shaft 17. The engine 1 is directly connected with the main box body 3 to transmit power to the gearbox, the driving box 3 sequentially transmits power to the crossed shaft angle box body 6 and the driving box body 8, the central shaft of the main box body 3 is acute-angled after being crossed with the central shaft of the crossed shaft angle box body 6, the crossed shaft angle a of the crossed shaft angle is set between 45 degrees and 60 degrees, the main box body 3 is connected with the engine 1, the height between the central points of the engine 1 and the driving box body 8 is b, the height b between the central points of the engine 1 and the driving box body 8 can be adjusted by adjusting the crossed shaft angle a between the main box body 3 and the crossed shaft angle box body 6, the height b is controlled between 150mm and 250mm, and the requirement of the gearbox on actual cultivation terrain is met.

More specifically, the planetary reducer is divided into three components: sun gear 2, planet dish 13, ring gear 11. The sun gear 2 is fixed at the front end of a main shaft of the engine 1, the planetary disc 13 is arranged on a transmission shaft 16, the planetary gear 12 is arranged on the transmission shaft, the planetary gear 12 is in meshing transmission with the sun gear 2, the inner gear ring 11 surrounds the planetary disc 13, and the sun gear 2 rotates to drive the planetary gear 12 on the planetary disc 13 to rotate. At this time, external force is applied to the planetary disk 13 to enable the planetary disk to rotate, and the inner gear ring 11 rotates; if external force is applied to the inner gear ring 11 to enable the inner gear ring to be not rotated, the planet disk 13 rotates, according to the characteristics of the planetary reducer, the planetary reduction clutch comprises a clutch outer ring 10, a three-foot clutch driving plate 9 and a clutch driving plate 24, the clutch outer ring 10 surrounds the inner gear ring 11, the three-foot clutch driving plate 9 is arranged at the inner circle of the clutch outer ring 10, the clutch driving plate 24 is connected with the three-foot clutch driving plate 9, the inner gear ring 11 is arranged in the clutch outer ring 10 and is in sliding fit, three notches are formed at the inner circle of the clutch outer ring 10, a cylindrical steel column 14 and three feet of the three-foot clutch driving plate 9 are arranged in each notch, one end of each notch is slightly smaller than the outer diameter of the cylindrical steel ball, a groove is formed at the end for installing a spring 15, the other end of the inner gear ring is slightly larger than the outer diameter of the cylindrical steel ball 14, the cylindrical steel ball 14 is arranged in the notch and can slide in the notch, three feet of the three-foot clutch dial 9 are respectively arranged at the large ends of the three notches. At the moment, the three-foot clutch dial 9 is shifted through the clutch dial 24, so that three feet of the three-foot clutch dial rotate in the range of three notches, and meanwhile, the cylindrical steel ball 14 is pushed. The clutch shifting piece 24 is shifted to enable the cylindrical steel balls 14 to move towards the small end of the notch, at the moment, the annular gear 11 is simultaneously pressed by the three cylindrical steel balls 14, the annular gear does not rotate, the planetary disc 13 rotates, and the state of the planetary clutch is 'closed'; the clutch shifting sheet 24 is shifted to enable three feet of the three-foot clutch shifting sheet 9 to move towards the direction of the large end of the notch, at the moment, the cylindrical steel ball 14 moves towards the large end of the notch simultaneously under the action of the spring 15, at the moment, the cylindrical steel ball 14 and the inner gear ring 11 do not generate acting force, the planetary disc 13 is connected with a lower-level gear, certain internal resistance cannot rotate, the inner gear ring 11 rotates, and the state of the planetary clutch is 'off'.

More specifically, the planetary disk 13 is in spline connection with the transmission shaft 16, the driving bevel gear driven wheel 22 and the driving shaft 18; the bevel driving wheel 19 and the first transmission shaft 16, the bevel driven wheel 20 and the second transmission shaft 17, and the driving bevel driving wheel 22 and the second transmission shaft 17 are connected by flat keys.

More specifically, the transmission shaft 16 is connected with the main box body 3 and the shaft intersection angle box body 6 through the primary transmission sleeve 5, the transmission shaft 17 is connected with the shaft intersection angle box body 6 and the driving box body 8 through the secondary transmission sleeve 7, and the transmission box body is filled with engine oil during actual farming to play roles in lubrication and heat dissipation.

More specifically, an engine underframe 23 is arranged between the engine 1 and the secondary transmission casing 7, so that the structure between the engine 1 and the transmission case is more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two drive ploughs quick-witted gearbox a little, its characterized in that includes the main tank body and the crossing angle box body of linking to each other driven by transmission one, links to each other driven crossing angle box body and drive box body by transmission two, be provided with in the main tank body and all set up planetary reducer and the planet speed reduction clutch of transmission one end, be provided with meshing bevel gear action wheel and bevel gear from the driving wheel in the crossing angle box body, the bevel gear action wheel sets up the other end of transmission one, the bevel gear is followed the driving wheel setting and is in the one end of transmission two, be equipped with the drive shaft in the drive box body, be equipped with on the drive shaft and drive bevel gear from the driving wheel with driving bevel gear action wheel meshing, drive bevel gear action wheel is installed the other end of transmission two.

2. The gearbox of two-wheel mini-tiller according to claim 1, characterized in that: the central axis of the main box body and the central axis of the crossed axis angle box body are crossed to form an acute angle, and the crossed axis angle a is 45-60 degrees.

3. The gearbox of two-wheel mini-tiller according to claim 2, characterized in that: the main box body is connected with an engine, and the height b of the engine and the center point of the driving box body is 150-250 mm.

4. The gearbox of two-wheel drive mini-tiller according to claim 3, characterized in that: the planetary reducer comprises a sun gear, a planetary disc and an inner gear ring, the sun gear is fixed at the front end of a main shaft of the engine, the planetary disc is arranged on a transmission shaft and provided with a planetary gear, the planetary gear is in meshing transmission with the sun gear, and the inner gear ring surrounds the planetary disc.

5. The gearbox of two-wheel mini-tiller according to claim 4, characterized in that: the planetary speed reduction clutch comprises a clutch outer ring, a tripod clutch driving plate and a clutch driving plate, the clutch outer ring surrounds the inner gear ring, the tripod clutch driving plate is arranged at the inner circle of the clutch outer ring, and the clutch driving plate is connected with the tripod clutch driving plate.

6. The gearbox of two-wheel mini-tiller according to claim 5, characterized in that: the inner gear ring and the clutch outer ring are in sliding fit, three notches are formed in the inner circle of the clutch outer ring and used for mounting cylindrical steel balls and three pins of the three-pin clutch driving plate, one end of each notch is slightly smaller than the outer diameter of each cylindrical steel ball, a groove is formed in the end of each notch and used for mounting a spring, the other end of each notch is slightly larger than the outer diameter of each cylindrical steel ball, each cylindrical steel ball is mounted in the corresponding notch and can slide in the corresponding notch, and the three pins of the three-pin clutch driving plate are mounted at the large ends of the three notches respectively.

7. The gearbox of two-wheel mini-tiller according to claim 6, characterized in that: the planetary disc is connected with the transmission shaft, and the driving bevel gear driven wheel is connected with the driving shaft through splines; the bevel gear driving wheel and the first transmission shaft, the bevel gear driven wheel and the second transmission shaft, and the driving bevel gear driving wheel and the second transmission shaft are all connected by flat keys.

8. The gearbox of two-wheel mini-tiller according to claim 7, characterized in that: the first transmission shaft is connected with the main box body and the shaft cross angle box body through first-stage transmission sleeves, and the second transmission shaft is connected with the shaft cross angle box body and the driving box body through second-stage transmission sleeves.