CN217874014U - Harvester gearbox - Google Patents
Harvester gearbox Download PDFInfo
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- CN217874014U CN217874014U CN202222376111.5U CN202222376111U CN217874014U CN 217874014 U CN217874014 U CN 217874014U CN 202222376111 U CN202222376111 U CN 202222376111U CN 217874014 U CN217874014 U CN 217874014U
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Abstract
The utility model belongs to the technical field of the gearbox, refer in particular to a harvester gearbox, the power distribution box comprises a box body, the box internal rotation is connected with I axle, II axles, III axles and VI axle, I epaxial high gear driving gear and the low gear driving gear of keeping off that is equipped with, II epaxial be equipped with high gear driving gear engaged high gear driven gear and with low gear driving gear engaged low gear driven gear, II axles are connected through two gear speed change gear assembly with III axles, III axles are connected through three gear speed change gear assembly with VI axle. The utility model discloses keep off the position many, keep off position variable speed span big, can satisfy the harvester to the user demand who keeps off the position many.
Description
The technical field is as follows:
the utility model belongs to the technical field of the gearbox, refer in particular to a harvester gearbox.
The background art comprises the following steps:
chinese utility model patent 2009201843.6 discloses a harvester gearbox assembly, mainly including: the transmission device comprises a box body, a differential assembly, a driving shaft sleeve assembly, a brake, a shaft I, a shaft II, a shaft III and a shaft IV, wherein two ends of the shaft I, the shaft II, the shaft III and the shaft IV are supported on the box body through bearings, the shaft IV is a gear shaft, an involute spline on the shaft is connected with an engagement tooth holder and a bushing, the engagement sleeve is in sliding connection with the engagement tooth holder through the involute spline, a gear I-III driven gear, a gear IV-VI driven gear, a gear II-V gear and a reverse gear driven gear rotate on the bushing in an idle mode, one end of each idle gear is provided with an involute spline which is the same as an external spline of the engagement tooth holder, and the requirement of speed change and torque change is met by moving the engagement sleeve through a shifting fork to be engaged with the external spline at one end of the gear. The power transmission process of the harvester gearbox assembly is as follows: torque is input through a key end of a shaft I (a clutch belt wheel assembly is arranged at a spline of the shaft I), a gear of the shaft I is arranged on the shaft I through a flat key, and the gear of the shaft I is meshed with an auxiliary variable-speed high-speed gear fixedly connected with the shaft II through a rectangular spline; the shaft II is also fixedly connected with an auxiliary variable-speed low-speed gear through a rectangular spline; when the auxiliary transmission meshing sleeve on the shaft III is in a neutral state, the auxiliary transmission low-speed driven gear and the auxiliary transmission high-speed driven gear are in an idle state; when the auxiliary speed-changing low-speed meshing sleeve is combined with the external spline of the auxiliary speed-changing low-speed driven gear, the auxiliary speed-changing low-gear state is achieved. When the meshing sleeve on the IV shaft is combined with the external spline of the I-III driven gear, the main transmission of the gearbox is in a I-gear state, torque is transmitted to the final transmission driving gear shaft through the gear on the IV shaft and the left and right semi-shaft gears in the differential assembly, and the gear on the final transmission driving gear shaft is meshed with the final transmission driven gear to drive the driving shaft to rotate, so that the walking function is realized; when the meshing sleeve on the IV shaft is combined with the external spline of the IV-VI gear driven gear, the main gear of the gearbox is in an IV gear; when the meshing sleeve on the IV shaft is combined with the external spline of the II-V gear driven gear, the main speed change of the gearbox is in the II gear; when the meshing sleeve on the IV shaft is combined with the external spline of the reverse driven gear, the main speed change of the gearbox is in a reverse gear; when the auxiliary speed-changing meshing sleeve is combined with the external spline of the auxiliary speed-changing high-speed driven gear, the main speed-changing is changed from a first gear to a third gear; IV gear is changed into VI gear; and the gear II is changed into the gear V. Thus, there are 6 forward gears, one reverse gear. Wherein, I, II, IV are low speed gears, III, V, VI are high speed gears, the final drive gear pair is a built-in and external meshing straight-tooth cylindrical gear.
The harvester gear shifting is only provided with six advancing gears, the gears are few, the gear shifting span is large, however, the harvester works in various environments such as mountains, hills and the like, the requirement on the gears is high, and the existing harvester cannot meet the use requirements of various working multi-gear of the harvester.
The invention content is as follows:
the utility model aims at providing a harvester gearbox, it keeps off the position many, keeps off position variable speed span big, can satisfy the harvester to the user demand who keeps off the position many times.
The utility model discloses a realize like this:
the utility model provides a harvester gearbox, includes the box, the box internal rotation is connected with I axle, II axles, III axles and VI axle, I epaxial being equipped with high fender driving gear and low fender driving gear, II epaxial be equipped with high fender driving gear meshed high fender driven gear and with low fender driving gear meshed low fender driven gear, II axles are connected through two speed change gear assembly with III axles, III axles are connected through three speed change gear assembly with the VI axle.
In the above-mentioned harvester gearbox, the shift mode of axle I and II can be: the high-gear driving gear and the low-gear driving gear are axially and slidably arranged on the shaft I and are radially fixed with the shaft I, the high-gear driven gear and the low-gear driven gear are fixedly sleeved on the shaft II, the high-gear driving gear is switched to be in a connected state with the high-gear driven gear along the axial movement of the shifting fork during gear engagement, and the low-gear driving gear is switched to be in a connected state with the low-gear driven gear along the axial movement of the shifting fork during gear engagement.
In the above-mentioned harvester gearbox, the smooth mode of establishing of high fender driving gear and low fender driving gear: the high-gear driving gear and the low-gear driving gear are sleeved on the shaft I and are fixedly connected with the shaft I in the radial direction through splines; the high-gear driven gear and the low-gear driven gear are fixed in a mode that: the high-gear driven gear and the low-gear driven gear are sleeved on the shaft II and are fixedly connected with the shaft II in the radial direction through splines, and the high-gear driven gear and the low-gear driven gear are axially fixed on the shaft II through limiting shaft sleeves.
In the above-mentioned harvester gearbox, the mode of shifting of I axle and II axle can also be: the high-gear driving gear and the low-gear driving gear are sleeved on the shaft I, the high-gear driven gear and the low-gear driven gear are fixedly sleeved on the shaft II, a meshing sleeve gear shifting mechanism is arranged on the shaft I and comprises a meshing seat and a meshing sleeve, and the meshing sleeve is moved by a shifting fork to switch the connection state of the high-gear driving gear and the shaft I and the connection state of the low-gear driving gear and the shaft I when the gear is engaged.
In the above-mentioned harvester gearbox, the two-gear speed change gear assembly includes a sub-transmission high gear engaged with the low gear driven gear on the shaft iii, a sub-transmission low gear master gear on the shaft ii, and a sub-transmission low gear slave gear engaged with the sub-transmission low gear master gear on the shaft iii.
In the above-mentioned harvester gearbox, the gear shifting mode of the second shaft and the third shaft can be: the fixed suit of high gear driven gear, low gear driven gear and auxiliary transmission low gear master gear is epaxial II, auxiliary transmission high gear and auxiliary transmission low gear from the gear along the axial smooth establish in III epaxially and with III axle radial fixings, through the shift fork during the gear engagement along axial displacement auxiliary transmission high gear shift gear switching auxiliary transmission high gear and low gear driven gear's connected state, through the shift fork during the gear engagement along axial displacement auxiliary transmission low gear from the gear switching auxiliary transmission low gear from the connected state of gear and auxiliary transmission low gear master gear.
In the above-mentioned harvester gearbox, the fixing mode of the high-gear driven gear, the low-gear driven gear and the auxiliary speed-changing low-gear main gear is as follows: the high-gear driven gear, the low-gear driven gear and the auxiliary variable speed low-gear master gear are sleeved on the shaft II and are fixedly connected with the shaft II in the radial direction through splines; the auxiliary transmission high-gear and the auxiliary transmission low-gear slave gear are arranged in a sliding mode: and the auxiliary variable-speed high-gear and the auxiliary variable-speed low-gear driven gear are sleeved on the shaft III and are fixedly connected with the shaft III in the radial direction through a spline.
In the harvester gearbox, the auxiliary transmission high-gear and the auxiliary transmission low-gear driven gear are of an integrated structure.
In the above-mentioned harvester gearbox, the gear shifting mode of the second shaft and the third shaft may also be: the low-gear driven gear and the auxiliary transmission low-gear main gear are fixedly sleeved on the shaft II, the auxiliary transmission high-gear and the auxiliary transmission low-gear driven gear are sleeved on the shaft III, the shaft III is provided with a meshing sleeve gear shifting mechanism, the meshing sleeve gear shifting mechanism comprises a meshing seat and a meshing sleeve, and the meshing sleeve is moved by a shifting fork to switch the connection state of the auxiliary transmission high-gear and the shaft III and the connection state of the auxiliary transmission low-gear driven gear and the shaft III during gear shifting.
In the above-mentioned harvester gearbox, three keep off change gear subassembly includes that three driving gear and three driven gear set up in VI epaxial three driving gear of setting in III, and three driving gear is one and keeps off driving gear, two fender driving gear and three fender driving gear, and three driven gear is one fender driven gear with one fender driving gear meshing, two fender driven gear with two fender driving gear meshing, three fender driven gear with three fender driving gear meshing.
In the above-mentioned harvester gearbox, the gear shifting mode of the shaft iii and the shaft vi can be: the first gear driving gear, the second gear driving gear and the third gear driving gear are fixedly sleeved on the shaft III, the first gear driven gear, the second gear driven gear and the third gear driven gear are sleeved on the shaft VI, and a meshing sleeve gear shifting mechanism for switching gears of the three-gear speed change gear assembly is arranged on the shaft VI.
In the above-mentioned harvester gearbox, the gear shifting mode of the shaft iii and the shaft vi can also be: the first gear driving gear, the second gear driving gear and the third gear driving gear are sleeved on the shaft III and are fixedly connected with the shaft III in the radial direction through splines, the first gear driving gear, the second gear driving gear and the third gear driving gear are axially fixed on the shaft III through a limiting sleeve, the first gear driven gear, the second gear driven gear and the third gear driven gear are sleeved on the shaft VI and are fixedly connected with the shaft VI in the radial direction through the splines, the first gear driven gear is axially moved through a shifting fork to switch the connection state of the first gear driven gear and the first gear driving gear, the second gear driven gear is axially moved through the shifting fork to switch the connection state of the second gear driven gear and the second gear driving gear, and the third gear driven gear is axially moved through the shifting fork to switch the connection state of the third gear driven gear and the third gear driving gear during gear engagement.
In the harvester gearbox, the VI shaft is provided with a reverse gear meshed with the high-gear driven gear.
In the gearbox of the harvester, the switching mode of the reverse gear can be as follows: the high-gear driven gear and the low-gear driven gear are fixedly sleeved on the shaft II, the reverse gear is sleeved on the shaft VI, and the shaft VI is provided with a meshing sleeve gear shifting mechanism for switching reverse gears.
In the above harvester gearbox, the switching manner of the reverse gear may be: the high-gear driven gear and the low-gear driven gear are fixedly sleeved on the shaft II, the reverse gear is sleeved on the shaft VI and is fixedly connected with the shaft VI in the radial direction through a spline, and the reverse gear is moved along the axial direction by a shifting fork when in gear shifting to switch the connection state of the reverse gear and the high-gear driven gear.
In the gearbox of the harvester, the high gear driving gear and the low gear driving gear are fixedly connected.
In the gearbox of the harvester, the high-gear driving gear and the low-gear driving gear are of an integrated structure.
In the gearbox of the harvester, the shaft II is sequentially provided with a high-gear driven gear, an auxiliary variable-speed low-gear main gear and a low-gear driven gear and is positioned between the high-gear driving gear and the low-gear driving gear; and an auxiliary variable speed low-gear driven gear and an auxiliary variable speed high-gear are sequentially arranged on the shaft III and are positioned between the auxiliary variable speed low-gear main gear and the low-gear driven gear.
In the above harvester gearbox, the transmission ratio of the high-gear driving gear to the high-gear driven gear is smaller than the transmission ratio of the low-gear driving gear to the low-gear driven gear, the transmission ratio of the low-gear driven gear to the auxiliary variable speed high-gear is smaller than the transmission ratio of the auxiliary variable speed low-gear driving gear to the auxiliary variable speed low-gear driven gear, the transmission ratio of the first-gear driving gear to the first-gear driven gear is larger than the transmission ratio of the second-gear driving gear to the second-gear driven gear, and the transmission ratio of the second-gear driving gear to the second-gear driven gear is larger than the transmission ratio of the third-gear driving gear to the third-gear driven gear.
In the gearbox of the harvester, a differential assembly connected with a VI shaft is arranged in the box body.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model has two gears when the shaft I is transmitted to the shaft II, two gears when the shaft II is transmitted to the shaft III, three gears when the shaft III is transmitted to the shaft VI, and twelve gears in total, the utility model has more gears and large gear speed change span, and can meet the use requirements of the harvester on multiple gears;
2. the utility model discloses vice variable speed high gear and low gear driven gear meshing effectively utilize low gear driven gear, reverse gear and high gear driven gear meshing, effectively utilize high gear driven gear, save space.
Description of the drawings:
fig. 1 is a structural sectional view of the present invention.
Reference numerals: 1. a box body; 2. i, shaft I; 3. II, shaft II; 4. a shaft III; 5. a VI shaft; 6. a high gear drive gear; 7. a low range drive gear; 8. a high-gear driven gear; 9. a low-gear driven gear; 10. a sub-transmission high-speed gear; 11. a sub-transmission low-gear main gear; 12. a range low slave gear; 13. a first gear driving gear; 14. two-gear driving gear; 15. a third gear drive gear; 16. a first-gear driven gear; 17. a second driven gear; 18. a third-gear driven gear; 19. a reverse gear; 20. a differential assembly.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, see fig. 1:
the utility model provides a harvester gearbox, includes box 1, 1 internal rotation of box is connected with I axle 2, II axles 3, III axles 4 and VI axle 5, be equipped with high fender driving gear 6 and low fender driving gear 7 on the I axle 2, be equipped with on II axles 3 with high fender driven gear 8 of 6 meshing of driving gear and with low fender driven gear 9 of 7 meshing of driving gear, II axles 3 are connected through two gear change gear assembly with III axle 4, III axles 4 are connected through three gear change gear assembly with VI axle 5, be equipped with the differential mechanism assembly 20 of connecting VI axle 5 in the box 1.
The utility model discloses a theory of operation: as shown in fig. 1, torque is input from a shaft i 2, and is transmitted to a shaft ii 3 through engagement of a high-gear driving gear 6 and a high-gear driven gear 8 or engagement of a low-gear driving gear 7 and a low-gear driven gear 9, and then transmitted to a shaft iii 4 through a two-gear speed change gear assembly, and then transmitted to a shaft vi 5 through a three-gear speed change gear assembly, and finally transmitted to a differential assembly 20, so as to drive the harvester to perform various operations.
The utility model discloses I axle 2 transmits to II axle 3 has two to keep off, and II axle 3 transmits to III axle 4 has two to keep off, and III axle 4 transmits to VI axle 5 has three to keep off, has twelve total keep off, the utility model discloses keep off the position many, keep off the position variable speed span big, can satisfy the user demand that the harvester kept off the position to many.
The gear shifting modes of the shaft I2 and the shaft II 3 are as follows: high fender driving gear 6 and low gear driving gear 7 are established on I axle 2 and radially fixed with I axle 2 along the axial is smooth, high fender driven gear 8 and the fixed suit of low gear driven gear 9 are on II axles 3, and I axle 2 rotates and drives high fender driving gear 6 and the rotation of low gear driving gear 7, and high fender driven gear 8 and one of them rotation of low gear driven gear 9 drive II axles 3 and rotate. When the gear is engaged, the high-gear driving gear 6 is axially moved by the shifting fork to switch the connection state of the high-gear driving gear 6 and the high-gear driven gear 8, and when the gear is engaged, the low-gear driving gear 7 is axially moved by the shifting fork to switch the connection state of the low-gear driving gear 7 and the low-gear driven gear 9.
Specifically, the high gear drive gear 6 and the low gear drive gear 7 are slidably disposed: the high-gear driving gear 6 and the low-gear driving gear 7 are sleeved on the shaft I2 and are fixedly connected with the shaft I2 in the radial direction through splines; fixing mode of the high-gear driven gear 8 and the low-gear driven gear 9: high fender driven gear 8 and low gear driven gear 9 suit are on II axles 3 and through spline and II axle 3 radial fixed connection, and high fender driven gear 8 and low gear driven gear 9 pass through spacing axle sleeve axial fixity on II axles 3.
The structure of the two-gear speed change gear assembly: the two-gear speed change gear assembly comprises a sub-transmission high gear 10 which is arranged on the shaft III 4 and meshed with the low gear driven gear 9, a sub-transmission low gear main gear 11 which is arranged on the shaft II 3, and a sub-transmission low gear driven gear 12 which is arranged on the shaft III 4 and meshed with the sub-transmission low gear main gear 11. The auxiliary transmission high-gear 10 is meshed with the low-gear driven gear 9, so that the low-gear driven gear 9 is effectively utilized, and the space is saved.
In order to facilitate the gear shifting of the shaft I2 and the shaft II 3 and the gear shifting of the shaft II 3 and the shaft III 4, the high-gear driven gear 8, the low-gear driven gear 9 and the auxiliary speed change low-gear main gear 11 are fixedly sleeved on the shaft II 3, the auxiliary speed change high-gear 10 and the auxiliary speed change low-gear driven gear 12 are axially arranged on the shaft III 4 in a sliding mode and are radially fixed with the shaft III 4, the shaft II 3 rotates to drive the high-gear driven gear 8, the low-gear driven gear 9 and the auxiliary speed change low-gear main gear 11 to rotate, and the auxiliary speed change high-gear 10 and the auxiliary speed change low-gear driven gear 12 rotate to drive the shaft III 4 to rotate. When the gear is engaged, the auxiliary transmission high gear 10 is axially moved by the shifting fork to switch the connection state of the auxiliary transmission high gear 10 and the low gear driven gear 9, and when the gear is engaged, the auxiliary transmission low gear is axially moved by the shifting fork to switch the connection state of the auxiliary transmission low gear driven gear 12 and the auxiliary transmission low gear main gear 11 from the gear 12.
Specifically, the fixed structure of the high-speed driven gear 8, the low-speed driven gear 9, and the subtransmission low-speed main gear 11: the high-gear driven gear 8, the low-gear driven gear 9 and the auxiliary variable speed low-gear main gear 11 are sleeved on the shaft II 3 and are fixedly connected with the shaft II 3 in the radial direction through splines, and the high-gear driven gear 8, the low-gear driven gear 9 and the auxiliary variable speed low-gear main gear 11 are axially fixed on the shaft II 3 through limiting shaft sleeves; slip-setting of the sub-transmission high-speed gear 10 and the sub-transmission low-speed driven gear 12: and the auxiliary transmission high-gear 10 and the auxiliary transmission low-gear driven gear 12 are sleeved on the shaft III 4 and are fixedly connected with the shaft III 4 in the radial direction through splines.
In order to facilitate sliding of the range high gear 10 and the range low slave gear 12, and to reduce assembly steps, the range high gear 10 and the range low slave gear 12 are of an integral construction.
Structure of the third gear shift gear assembly: the three-gear speed change gear assembly comprises three driving gears arranged on a shaft III 4 and three driven gears arranged on a shaft VI 5, the three driving gears are a first-gear driving gear 13, a second-gear driving gear 14 and a third-gear driving gear 15, the three driven gears are a first-gear driven gear 16 meshed with the first-gear driving gear 13, a second-gear driven gear 17 meshed with the second-gear driving gear 14 and a third-gear driven gear 18 meshed with the third-gear driving gear 15.
The gear shifting modes of the shaft III 4 and the shaft VI 5 are as follows: the first-gear driving gear 13, the second-gear driving gear 14 and the third-gear driving gear 15 are fixedly sleeved on the shaft III 4, the first-gear driven gear 16, the second-gear driven gear 17 and the third-gear driven gear 18 are sleeved on the shaft VI 5, and the shaft VI 5 is provided with an engaging sleeve gear shifting mechanism for switching gears of the three-gear speed change gear assembly. The III shaft 4 rotates to drive the first-gear driving gear 13, the second-gear driving gear 14 and the third-gear driving gear 15 to rotate, and the meshing sleeve gear shifting mechanism is combined with one of the first-gear driven gear 16, the second-gear driven gear 17 and the third-gear driven gear 18 to drive the VI shaft 5 to rotate.
In order to effectively utilize the high-gear driven gear 8 and save space, a reverse gear 19 meshed with the high-gear driven gear 8 is arranged on the VI shaft 5.
In order to facilitate the gear shifting of the shaft I2 and the shaft II 3 and the gear shifting of the shaft II 3 and the shaft VI 5, the high-gear driven gear 8 and the low-gear driven gear 9 are fixedly sleeved on the shaft II 3, the reverse gear 19 is sleeved on the shaft VI 5, and the shaft VI 5 is provided with a meshing sleeve gear shifting mechanism for switching the reverse gear. The II shaft 3 rotates to drive the high-gear driven gear 8 to rotate, and the meshing sleeve gear shifting mechanism and the reverse gear 19 are combined to drive the VI shaft 5 to rotate.
In this embodiment, the vi shaft 5 is sequentially provided with a first-gear driven gear 16, an engagement sleeve gear shift mechanism, a third-gear driven gear 18, a second-gear driven gear 17, an engagement sleeve gear shift mechanism, and a reverse gear 19, the engagement sleeve gear shift mechanism between the first-gear driven gear 16 and the third-gear driven gear 18 switches the connection state of the first-gear driven gear 16 and the vi shaft 5 and the connection state of the third-gear driven gear 18 and the vi shaft 5, and the engagement sleeve gear shift mechanism between the second-gear driven gear 17 and the reverse gear 19 switches the connection state of the second-gear driven gear 17 and the vi shaft 5 and the connection state of the reverse gear 19 and the vi shaft 5.
In order to facilitate sliding of the high gear drive gear 6 and the low gear drive gear 7, the high gear drive gear 6 and the low gear drive gear 7 are fixedly connected.
In order to reduce the assembly steps, the high gear drive gear 6 and the low gear drive gear 7 are of a one-piece construction.
Furthermore, a high-gear driven gear 8, an auxiliary transmission low-gear main gear 11 and a low-gear driven gear 9 are sequentially arranged on the shaft II 3 and are positioned between the high-gear driving gear 6 and the low-gear driving gear 7; and an auxiliary transmission low-gear driven gear 12 and an auxiliary transmission high-gear 10 are sequentially arranged on the shaft III 4 and are positioned between an auxiliary transmission low-gear main gear 11 and a low-gear driven gear 9, so that the layout is compact, and the space is reasonably utilized.
Further, the transmission ratio of the high-gear driving gear 6 to the high-gear driven gear 8 is smaller than the transmission ratio of the low-gear driving gear 7 to the low-gear driven gear 9, the transmission ratio of the low-gear driven gear 9 to the sub-transmission high-gear 10 is smaller than the transmission ratio of the sub-transmission low-gear main gear 11 to the sub-transmission low-gear driven gear 12, the transmission ratio of the first-gear driving gear 13 to the first-gear driven gear 16 is larger than the transmission ratio of the second-gear driving gear 14 to the second-gear driven gear 17, and the transmission ratio of the second-gear driving gear 14 to the second-gear driven gear 17 is larger than the transmission ratio of the third-gear driving gear 15 to the third-gear driven gear 18. In this embodiment, the number of teeth of the high-speed drive gear 6 is 32, the number of teeth of the high-speed driven gear 8 is 23, the number of teeth of the low-speed drive gear 7 is 20, the number of teeth of the low-speed driven gear 9 is 35, the number of teeth of the sub-transmission high-speed gear 10 is 17, the number of teeth of the sub-transmission low-speed drive gear 11 is 19, the number of teeth of the sub-transmission low-speed driven gear 12 is 34, the number of teeth of the first-speed drive gear 13 is 26, the number of teeth of the first-speed driven gear 16 is 31, the number of teeth of the second-speed drive gear 14 is 29, the number of teeth of the second-speed driven gear 17 is 29, the number of teeth of the third-speed drive gear 15 is 34, the number of teeth of the third-speed driven gear 18 is 23, and the number of teeth of the reverse gear 19 are 30, and the moduli of the high-speed drive gear 6, high-speed driven gear 8, low-speed drive gear 7, low-speed driven gear 9, sub-speed high-speed gear 10, sub-speed drive gear 10, sub-transmission low-speed drive gear 11, sub-speed driven gear 12, first-speed driven gear 13, first-transmission low-speed driven gear 13, first-speed driven gear 13, third-speed driven gear 16, and third-speed driven gear 14 are 3mm.
The first shaft 2 and the second shaft 3 are meshed and connected with a low-gear driven gear 9 through a low-gear driving gear 7, the second shaft 3 and the third shaft 4 are meshed and connected with an auxiliary variable-speed low-gear driven gear 12 through an auxiliary variable-speed low-gear main gear 11, and when a meshing sleeve on the VI shaft 5 is combined with a first-gear driven gear 16, the gearbox is in the first gear; when the meshing sleeve on the VI shaft 5 is combined with the secondary driven gear 17, the gearbox of the utility model is in the second gear; when the meshing sleeve on the VI shaft 5 is combined with the three-gear driven gear 18, the gearbox of the utility model is in gear III; when the meshing sleeve on the VI shaft 5 is combined with the reverse gear 19, the utility model discloses the gearbox is in R1 fender.
Remove vice variable speed high-speed gear 10 through the shift fork, when II axles 3 and III axles 4 are connected through the meshing of low gear driven gear 9 and vice variable speed high-speed gear 10, the utility model discloses the gearbox keeps off by I and becomes VI fender, and II keep off and become V fender, and III keep off and become VI fender, and R1 keeps off unchangeably.
Remove high fender driving gear 6 through the shift fork, I axle 2 and II axle 3 keep off driving gear 6 and high when keeping off 8 meshing connections of driven gear through the high, the utility model discloses the gearbox keeps off by I and becomes VII and keeps off, and II keep off and become VIII fender, and III keep off and become IX fender, and R1 keeps off and becomes R2 and keeps off.
Remove vice variable speed high-speed gear 10 through the shift fork, II axles 3 and III axles 4 are connected through low gear driven gear 9 and vice variable speed high-speed gear 10 meshing, remove high gear driving gear 6, when I axle 2 and II axles 3 are connected through high gear driving gear 6 and the meshing of high gear driven gear 8, the utility model discloses the gearbox is kept off by I and is become X fender, and II keeps off and becomes XI fender, and III keeps off and becomes XII fender, and R1 keeps off and becomes R2 fender.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a harvester gearbox, includes box (1), box (1) internal rotation is connected with I axle (2), II axle (3), III axle (4) and VI axle (5), its characterized in that: be equipped with high gear driving gear (6) and low gear driving gear (7) on I axle (2), be equipped with on II axle (3) with high gear driving gear (6) meshed high gear driven gear (8) and with low gear driving gear (7) meshed low gear driven gear (9), II axle (3) are connected through two gear speed change gear assembly with III axle (4), III axle (4) are connected through three gear speed change gear assembly with VI axle (5).
2. The harvester gearbox of claim 1, wherein: high fender driving gear (6) and low fender driving gear (7) are established on I axle (2) and radially fixed with I axle (2) along the axial cunning, high fender driven gear (8) and low fender driven gear (9) fixed suit are on II axles (3).
3. A harvester gearbox according to claim 1, in which: the high-gear driving gear (6) and the low-gear driving gear (7) are sleeved on the shaft I (2), the high-gear driven gear (8) and the low-gear driven gear (9) are fixedly sleeved on the shaft II (3), a meshing sleeve gear shifting mechanism is arranged on the shaft I (2), the meshing sleeve gear shifting mechanism comprises a meshing seat and a meshing sleeve, and the meshing sleeve switches the connection state of the high-gear driving gear (6) and the shaft I (2) and the connection state of the low-gear driving gear (7) and the shaft I (2).
4. A harvester gearbox according to claim 1, in which: the two-gear speed change gear assembly comprises an auxiliary speed change high gear (10) which is arranged on the shaft III (4) and meshed with the low gear driven gear (9), an auxiliary speed change low gear main gear (11) which is arranged on the shaft II (3), and an auxiliary speed change low gear driven gear (12) which is arranged on the shaft III (4) and meshed with the auxiliary speed change low gear main gear (11).
5. The harvester gearbox of claim 4, wherein: the high-gear driven gear (8), the low-gear driven gear (9) and the auxiliary speed-changing low-gear main gear (11) are fixedly sleeved on the shaft II (3), and the auxiliary speed-changing high-gear (10) and the auxiliary speed-changing low-gear driven gear (12) are axially and slidably arranged on the shaft III (4) and are radially fixed with the shaft III (4).
6. The harvester gearbox of claim 1, wherein: three keep off change gear subassembly is including setting up three driving gear on III axle (4) and setting up three driven gear on VI axle (5), and three driving gear is one fender driving gear (13), two fender driving gear (14) and three fender driving gear (15), and three driven gear is for keeping off driven gear (16) with one fender driving gear (13) meshing, keep off driven gear (17) with two fender driving gear (14) meshing, three fender driven gear (18) with three fender driving gear (15) meshing.
7. The harvester gearbox of claim 6, wherein: the first gear driving gear (13), the second gear driving gear (14) and the third gear driving gear (15) are fixedly sleeved on the shaft III (4), the first gear driven gear (16), the second gear driven gear (17) and the third gear driven gear (18) are sleeved on the shaft VI (5), and a meshing sleeve gear shifting mechanism for switching gears of the third gear speed change gear assembly is arranged on the shaft VI (5).
8. The harvester gearbox of claim 1, wherein: and a reverse gear (19) meshed with the high-gear driven gear (8) is arranged on the VI shaft (5).
9. The harvester gearbox of claim 8, wherein: the high-gear driven gear (8) and the low-gear driven gear (9) are fixedly sleeved on the shaft II (3), the reverse gear (19) is sleeved on the shaft VI (5), and a meshing sleeve gear shifting mechanism for switching reverse gears is arranged on the shaft VI (5).
10. The harvester gearbox of claim 1, wherein: and the high-gear driving gear (6) is fixedly connected with the low-gear driving gear (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222376111.5U CN217874014U (en) | 2022-09-07 | 2022-09-07 | Harvester gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222376111.5U CN217874014U (en) | 2022-09-07 | 2022-09-07 | Harvester gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217874014U true CN217874014U (en) | 2022-11-22 |
Family
ID=84080748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222376111.5U Active CN217874014U (en) | 2022-09-07 | 2022-09-07 | Harvester gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217874014U (en) |
-
2022
- 2022-09-07 CN CN202222376111.5U patent/CN217874014U/en active Active
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