CN201947679U

CN201947679U - In-situ steering traveling gearbox for semi-feeding rice and wheat combine harvester

Info

Publication number: CN201947679U
Application number: CN2010206437620U
Authority: CN
Inventors: 陈霓; 胡华东; 周勇; 李红阳; 熊永森; 陈德俊
Original assignee: SIFANG GROUP CO ZHEJIANG; Jinhua Polytechnic
Current assignee: SIFANG GROUP CO ZHEJIANG; Jinhua Polytechnic
Priority date: 2010-11-25
Filing date: 2010-11-25
Publication date: 2011-08-31
Anticipated expiration: 2020-11-25
Also published as: WO2012068901A1; JP2013512829A

Abstract

The utility model discloses a semi-feeding rice and wheat combine harvester in situ steering walking gearbox, including a speed change mechanism, a steering mechanism and a deceleration mechanism in the gearbox body, the speed change mechanism drives the steering mechanism, and the steering mechanism realizes the walking of the combine harvester through the deceleration mechanism , the steering mechanism includes a steering shaft, the steering shaft is provided with a central transmission gear with teeth on both sides, and the left and right sides of the central transmission gear with teeth on both sides are respectively equipped with symmetrical tooth cogs, shift forks, pressure plates, and tension springs , Steering clutch and steering clutch gear, the tooth cog is movably connected to the central transmission gear under the drive of the shift fork, the shift fork pushes the pressure plate to make the steering clutch combine to realize power transmission, one end of the tension spring is against the pressure plate, and the other end is against the steering Clutch, steering clutch gear through the combination of steering clutch, realizes the transmission to the tooth cog. The utility model can realize the in-situ steering of the combine harvester, improve the maneuverability of the combine harvester, and reduce idle travel and energy consumption.

Description

Semi-feeding combine harvester pivot stud walking gearbox

Technical field

The utility model relates to cereal harvesting machinery, is applied to half feeding and full feeding rice wheat combine and other crop harvesting machinery and engineering machinery.

Background technology

Running gear is the main function components of combine, and it influences the trafficability characteristic and the operation quality of machine.Semi-feeding combine harvester all adopts the rubber caterpillar type running gear, and its core is the walking gearbox.Steering behaviour is one of outstanding feature of passing judgment on walking gearbox quality.The steering mechanism of this type gearbox is made up of dog clutch, friction disk type steering cluth and manipulation device, to cut off one-sided dog clutch power or to make the mode of steering cluth braking realize turning to: when machine is kept straight on, the dog clutch combination, steering cluth separates; When turning to, handle shift fork and make this side crawler belt slow down both sides crawler belt one fast one slow large radius turn, but the southern little field piece operation of the big incompatibility of large radius turn idle stroke by turn side jaw clutch cut-out power; Continue to handle shift fork and allow this side steering cluth combination, make this side crawler belt braking stall, it is little curved that both sides crawler belt one is walked a stall, but change little when curved the stall crawler belt draw together soil and destroy soil, deep mud farmland is especially obvious.Also increased power loss during braking.Therefore, be necessary that exploitation can eliminate above drawback, the both sides crawler belt is positive and negative with speed walking, and the theoretical steering radius is the zero pivot stud gearbox of walking.

The utility model content

The purpose of this utility model is to provide semi-feeding combine harvester pivot stud walking gearbox, can solve existing combine or both sides crawler belt one fast one slow large radius turn effectively, increases the idle stroke and the energy consumption of combine; Perhaps to walk a stall little curved for both sides crawler belt one, destroys the problem of soil.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

Semi-feeding combine harvester pivot stud walking gearbox, comprise gearbox body, it is characterized in that: be provided with gear in the gearbox body, gear is connected with steering mechanism and reducing gear in turn, gear drives steering mechanism, and steering mechanism realizes the combine walking by reducing gear.

Further, gear comprises power input shaft, secondary variable-speed shaft and driven variable-speed shaft, power input shaft is provided with driven wheel, secondary variable-speed shaft is provided with the running part driven wheel with the normal engagement of driven wheel, also be provided with several driving gears on the secondary variable-speed shaft, driven variable-speed shaft is provided with several corresponding driven gears, driven wheel drives secondary variable-speed shaft by the running part driven wheel and rotates, thereby secondary variable-speed shaft drives the speed change transmission of driving gear realization to driven gear, and gear is simple in structure, reliable.

Further, the driven wheel on the power input shaft also often meshes with the reaping part driven wheel of combine, and harvesting action and walking action are carried out synchronously.

Further, steering mechanism comprises steering spindle, steering spindle is provided with both sides band tooth embedding central driver gear, the band tooth embedding central driver gear left and right sides, both sides is respectively equipped with the clutch gear of symmetry, shift fork, platen, tensioning spring, steering cluth and steering cluth gear, clutch gear flexibly connects central driver gear under the drive of shift fork, shift fork promotes platen makes steering cluth in conjunction with realizing transmission of power, tensioning spring one end props up platen, the tensioning spring other end props up steering cluth, realize the return motion of platen, the steering cluth gear is realized the transmission to clutch gear by the combination of steering cluth.

Further, central driver gear and driven gear often mesh, and driven variable-speed shaft drives steering mechanism by central driver gear.

Further, the place ahead, the steering spindle left and right sides is provided with the reversing shaft of symmetry, and reversing shaft is provided with tumbler gear, and driven variable-speed shaft is provided with the turn to driven wheel corresponding with tumbler gear, and tumbler gear often meshes with turning to driven wheel and steering cluth gear simultaneously.

Further, turn to the number of teeth of driven wheel to equate with the number of teeth of the driven gear that often meshes with central driver gear, the number of teeth of steering cluth gear equates with the number of teeth of central driver gear, serves as zero pivot stud with the realization theory turning radius.

Further, be spaced movable steel disc and movable friction plate in the steering cluth, friction plate applying steel disc is realized transmission of power.The applying of friction plate and steel disc compresses platen by shift fork and realizes that this moment, tensioning spring was compressed; Friction plate was realized with separating by the restoring force of tensioning spring of steel disc.

Preferably, the number of friction plate is 5～6, and steel disc is Duoed 1 than friction plate.

Further, reducing gear comprises deboost axle, the left and right sides is provided with the travelling gear and the reduction gearing of symmetry respectively successively on the deboost axle, the clutch gear of steering mechanism drives travelling gear, the track drive gears engaged of reduction gearing and combine, the reduction gearing that travelling gear drives on the deboost axle is rotated, and realizes the transmission to the track drive gear of combine.

The utility model is owing to adopted technique scheme, can realize the pivot stud of combine, can realize that also the routine of combine turns to, improve the mobility of combine, reduced the idle stroke and the energy consumption of combine, can not produce simultaneously and destroy soil.The utility model compact conformation, reliable operation, energy consumption is little, and is practical.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of the utility model semi-feeding combine harvester pivot stud walking gearbox.

Reference numeral: 1. gearbox body, 2. power input shaft, 3. secondary variable-speed shaft, 4. driven variable-speed shaft, 5,21. it is right, left side reversing shaft, 6,22. it is right, left side shift fork, 7,20. it is right, left side friction plate, 8. steering spindle, 9,19. it is right, left side tensioning spring, 10,18. it is right, the left steering clutch, 11,17. it is right, left side steel disc, 12,16. it is right, left side platen, 13. deboost axle, 14,15. right, left driving shaft, 23. brake, 24. reaping part driving shaft, 25. driven wheel, 26. reaping part driven wheel, 27. running part driven wheel, 28.III shelves driving gear, 29.II shelves driving gear, 30.I shelves driving gear, 31. right turn driven wheel, 32.III shelves driven gear, 33.II shelves driven gear, 34.I shelves driven gear, 35. left steering driven wheel, 36. left tumbler gear, 37. left steering clutch gear, 38. left clutch gear, 39. central driver gear, 40. right clutch gear, 41. right turn clutch gear, 42. right tumbler gear, 43. Left Drive gear, 44. right travelling gear, 45. left reduction gearing, 46. right reduction gearing, 47. left track drive gear, 48. right-hand track chiain driven wheel

Embodiment

As shown in Figure 1, be the utility model semi-feeding combine harvester pivot stud walking gearbox, comprise gearbox body 1, be provided with gear in the gearbox body 1, gear is connected with steering mechanism and reducing gear in turn, gear drives steering mechanism, and steering mechanism realizes the combine walking by reducing gear.

Gear comprises power input shaft 2, secondary variable-speed shaft 3 and driven variable-speed shaft 4, power input shaft 2 is provided with driven wheel 25, driven wheel 25 often meshes with the reaping part driven wheel 26 of combine, drive 24 runnings of reaping part driving shaft, secondary variable-speed shaft 3 is provided with the running part driven wheel 27 with driven wheel 25 normal engagements, also be provided with I retaining driving gear 30 on the secondary variable-speed shaft 3, II keeps off driving gear 29, III keeps off driving gear 28, driven variable-speed shaft 4 is provided with corresponding I retaining driven gear 34, II keeps off driven gear 33, III keeps off driven gear 32, driven wheel 25 drives secondary variable-speed shaft 3 by running part driven wheel 27 and rotates, secondary variable-speed shaft 3 drives I retaining driving gear 30, perhaps II keeps off driving gear 29, perhaps III keeps off driving gear 28, thereby realize tackling mutually I retaining driven gear 34, perhaps II retaining driven gear 33, the perhaps transmission of III retaining driven gear 32.

Steering mechanism comprises steering spindle 8, and steering spindle 8 is provided with central driver gear 39, and central driver gear 39 often meshes with II retaining driven gear 33, and driven variable-speed shaft 4 drives steering mechanism by central driver gear 39.Central driver gear 39 left and right sides are provided with the left clutch gear 38 of symmetry respectively successively, right clutch gear 40, left side shift fork 22, right shift fork 6, left side platen 16, right platen 12, left side tensioning spring 19, right tensioning spring 9, left steering clutch 18, left steering clutch gear 37, right turn clutch 10 and right turn clutch gear 41, steering cluth gear and steering cluth are structure as a whole, a left side,

right clutch gear

38,40 respectively on a left side, right shift fork 22,6 drive flexibly connects central driver gear 39 down, a left side, right shift fork 22,6 promote a left side respectively,

right platen

16,12 with left,

right turn clutch

18,10 in conjunction with realizing transmission of power, a left side, right turn clutch 18, be respectively equipped with spaced left steel disc 17 in 10, left side friction plate 20, right steel disc 11 and right friction plate 7, a left side,

right steel disc

17,11 are movably connected in a left side respectively, right turn clutch 18, in 10, a left side,

right friction plate

20,7 are movably connected in a left side respectively, right turn clutch 18, in 10, a left side,

right friction plate

20,7 number is 5～6, a left side,

right steel disc

17,11 respectively than a left side, right friction plate 20, more than 71.Left and right steering cluth gear 37,41 is respectively by left and

right platen

16,12, left steel disc 17 and left friction plate 20, right steel disc 11 and right friction plate 7 in the left and

right steering cluth

18,10 are fitted, realize transmission respectively left and right clutch gear 38,40.Left and right tensioning

spring

19,9 one ends prop up left and

right platen

16,12 respectively, left and right tensioning

spring

19,9 other ends prop up left and

right steering cluth

18,10 respectively, realize the return motion of left and

right platen

16,12 respectively, make left and

right friction plate

20,7 break away from left and

right steel disc

17,11 respectively.

The place ahead, steering spindle 8 left and right sides is provided with left reversing shaft 21, the right reversing shaft 5 of symmetry, be respectively equipped with left tumbler gear 36, right tumbler gear 42 on the left and right reversing shaft 21,5, driven variable-speed shaft 4 is provided with respectively left steering driven wheel 35, the right turn driven wheels 31 with left and right tumbler gear 36,42 normal engagements, left side tumbler gear 36 often meshes with left steering driven wheel 35 and left steering clutch gear 37 simultaneously, and right tumbler gear 42 often meshes with right turn driven wheel 31 and right turn clutch gear 41 simultaneously.The left and right number of teeth of driven wheel 35,31 that turns to equates that with the number of teeth of the II retaining driven gear 33 of normal engagement the number of teeth of left and right steering cluth gear 37,41 equates with the number of teeth of central driver gear 39.

Reducing gear comprises deboost axle 13, the left and right sides is provided with the Left Drive gear 43 of symmetry respectively successively on the deboost axle 13, right travelling gear 44 and left reduction gearing 45, right reduction gearing 46, steering mechanism drives a left side, right travelling gear 43,44, a left side, right reduction gearing 45,46 respectively with the track drive gear 47 of combine, 48 engagements, steering mechanism drives a left side, right travelling gear 43,44, a left side, right travelling gear 43,44 drive the left side on the deboost axle 13 respectively, right reduction gearing 45,46 rotate, and realize the left track drive gear 47 to combine respectively, the transmission of right-hand track chiain driven wheel 48.

The left and right driven wheel 35,31 that turns to often meshes with corresponding left and right tumbler gear 36,42 respectively; Left and right tumbler gear 36,42 again respectively with left and right steering cluth on gear 37,41 often mesh.Left and

right clutch gear

38,40 often meshes with left and right travelling gear 43,44 respectively; Left and right reduction gearing 45,46 often meshes with left and right

track drive gear

47,48 respectively.

During operation, the power of hydraulic motor power input shaft 2 is passed to the running part driven wheel 27 that is fixed on the secondary variable-speed shaft 3 through driven wheel 25, makes secondary variable-speed shaft 3 be in normal operating condition.By different drive paths, can realize following function (is that example describes with the II retaining):

One, straight forward:

The power of secondary variable-speed shaft is through II retaining driving gear 29 → II retaining driven gear 33 → central driver gear 39 → left and right

clutch gear

38,40 → left and right travelling gear 43,44 → left and

right reduction gearing

45,46 → left and right

track drive gear

47,48 → left and right driving

axle

15,14, and the left and right sides crawler belt constant speed that drives combine is advanced.

Two, craspedodrome retreats:

By changing the rotation direction of hydraulic motor power input shaft 2, the left and right sides crawler belt that drives combine retreats with the route constant speed of the identical transmission of straight forward.

Three, routine turns to:

With the right turn is example: handle right shift fork 6 and move to right, right clutch gear 40 is separated with the tooth embedding of central driver gear 39, and the right side power cut, the right side crawler belt moves ahead by inertia, and speed descends.The drive path transferring power of left track during still according to above-mentioned straight forward: II retaining driving gear 29 → II retaining driven gear 33 → central driver gear 39 → left clutch gear 38 → Left Drive gear 43 → left reduction gearing 45 → left track drive gear 47 → left driving shaft 15, promptly left track continues to move ahead.Since left and right track speed official post combine turn right to.

Turn left to principle identical with it.

Four, pivot stud

With flicker to being example: handle right shift fork 6 and move to right, right clutch gear 40 is separated with the tooth embedding of central driver gear 39, cut off power.Handling right shift fork 6 continues to move to right, apply pressure to right platen 12, right platen 12 promotes right steel discs 11 and right friction plate 7 moves to right, and eliminates gap between right friction plate 7 in the right turn clutch 10 and the right steel disc 11, make right friction plate 7 and right steel disc 11 applying transferring power, this moment, right tensioning spring 9 was compressed.

The right side power transmission line is: II retaining driving gear 29 → II retaining driven gear 33 → right turn driven wheel 31 → right tumbler gear 42 → right turn clutch gear 41 → right clutch gear 40 → right travelling gear 44 → right reduction gearing 46 → right-hand track chiain driven wheel 48 → right driving axle 14.

Because right tumbler gear 42, steering direction was opposite when right-hand track chiain driven wheel 48 was advanced with machine, and the drive path transferring power of left track during still according to above-mentioned straight forward; And the left and right number of teeth of driven wheel 35,31 that turns to equates that with the number of teeth of II retaining driven gear 33 left and right steering cluth gear 37,41 equates with the number of teeth of central driver gear 39.Therefore the right side crawler belt will be realized the combine pivot stud with identical theoretical velocity antiport with left track.

Flicker is identical with it to principle.

Five, pace conversion:

Driven wheel 25 often meshes with the running part driven wheel 27 that is fixed on the secondary variable-speed shaft 3, and therefore secondary variable-speed shaft 3 is in normal operating condition.

When hanging the I retaining, mobile I retaining driving gear 30 makes it and 34 engagements of I retaining driven gear, thereby makes driven variable-speed shaft 4 runnings, and power is passed to central driver gear 39 through I retaining driven gear 34 and II retaining driven gear 33.

When hanging the II retaining, mobile II retaining

driving gear

29 and 33 engagements of II retaining driven gear, power is passed to central driver gear 39 through II retaining driven gear 33, as shown in Figure 1.

When hanging the III retaining, mobile II retaining driving gear 29 makes attached internal gear thereon and the pinion that is attached to III retaining driving gear 28, and power passes to central driver gear 39 through III retaining driven gear 32 through II retaining driven gear 33.

Six, stopping brake:

When combine stops operation or stops in the hillside fields, implement braking by brake activation device 23.

Claims

1. The semi-feeding rice and wheat combine harvester turns to the walking gearbox in situ, including the gearbox body (1), characterized in that: the gearbox body (1) is provided with a speed change mechanism, and the speed change mechanism is connected with A steering mechanism and a deceleration mechanism, the speed change mechanism drives the steering mechanism, and the steering mechanism realizes the walking of the combine harvester through the deceleration mechanism.

2. The semi-feeding rice and wheat combine harvester according to claim 1 turns to the walking gearbox in situ, characterized in that: the transmission mechanism includes a power input shaft (2), an auxiliary transmission shaft (3) and a driven transmission shaft (4), the power input shaft (2) is provided with a driving gear (25), and the auxiliary transmission shaft (3) is provided with a running part driving gear (27) that is constantly meshed with the driving gear (25) ), the auxiliary transmission shaft (3) is also provided with driving gears (30, 29, 28), and the driven transmission shaft (4) is provided with corresponding passive gears (34, 33, 32), and the The driving gear (25) drives the auxiliary transmission shaft (3) to rotate through the driving gear (27) of the running part, and the auxiliary transmission shaft (3) drives the driving gears (30, 29, 28) to realize the driving of the driven gear ( 34, 33, 32) variable speed transmission.

3. The semi-feeding rice and wheat combine harvester according to claim 1 is characterized in that: the drive gear (25) on the power input shaft (2) and the harvesting part of the combine harvester The driving gear (26) is in constant mesh.

4. The semi-feeding rice and wheat combine harvester according to claim 1, characterized in that: the steering mechanism includes a steering shaft (8), and the steering shaft (8) is provided with a central Transmission gear (39), the left and right sides of described central transmission gear (39) are respectively respectively provided with symmetrical cog gear (38,40), shift fork (22,6), pressure plate (16,12), tension plate Tight springs (19, 9), steering clutches (18, 10) and steering clutch gears (37, 41), the tooth cogs (38, 40) are movably connected under the drive of the shift forks (22, 6) The central transmission gear (39), the shift fork (22, 6) pushes the pressure plate (16, 12) to combine the steering clutch (18, 10) to realize power transmission, and one end of the tension spring (19, 9) against the pressure plate (16, 12), the other end of the tension spring is against the steering clutch (18, 10) to realize the return movement of the pressure plate (16, 12), and the steering clutch gear (37, 41 ) through the combination of the steering clutch (18, 10), the transmission to the tooth cogwheel (38, 40) is realized.

5. The semi-feeding rice and wheat combine harvester according to claim 4 turns to the walking gearbox in situ, characterized in that: the central transmission gear (39) is in constant mesh with the driven gear (33), and the driven gear The shaft (4) drives the steering mechanism through said central transmission gear (39).

6. The semi-feeding rice and wheat combine harvester according to claim 4 is characterized in that: the left and right sides of the steering shaft (8) are provided with symmetrical reversing shafts (21, 5 ), the reversing shaft (21, 5) is provided with a reversing gear (36, 42), and the driven transmission shaft (4) is provided with a steering gear corresponding to the reversing gear (36, 42) driving gears (35, 31), and the reversing gears (36, 42) are in constant mesh with the steering driving gears (35, 31) and steering clutch gears (37, 41) at the same time.

7. The semi-feeding rice and wheat combine harvester according to claim 6 is characterized in that: the number of teeth of the steering drive gear (35, 31) is equal to the number of teeth of the driven gear (33), The number of teeth of the steering clutch gear (37, 41) is equal to the number of teeth of the central transmission gear (39).

8. The semi-feeding rice and wheat combine harvester according to claim 4, characterized in that: movable steel sheets (17, 11) are arranged at intervals in the steering clutch (18, 10) And movable friction plates (20, 7), the said friction plates (20, 7) fit steel plates (17, 11) to realize power transmission.

9. The semi-feeding rice and wheat combine harvester according to claim 8, characterized in that: the number of the friction plates (20, 7) is 5-6, and the steel plates (17,11) has 1 piece more than described friction plate (20,7).

10. The semi-feeding rice and wheat combine harvester according to claim 1, characterized in that: the deceleration mechanism includes a deceleration shaft (13), and the left and right sides of the deceleration shaft (13) are Symmetrical transmission gears (43, 44) and reduction gears (45, 46) are respectively arranged successively, and the steering mechanism drives the transmission gears (43, 44), and the reduction gears (45, 46) are connected with the combine harvester The crawler drive gears (47, 48) mesh, the steering mechanism drives the transmission gears (43, 44), and the transmission gears (43, 44) drive the reduction gears (45, 46) on the reduction shaft (13) to rotate, Realize the transmission to the crawler belt drive gear (47,48) of combine harvester.