Medium-sized and small-sized hydraulic drive four-wheel drive axle assembly for grain harvesting machine

Abstract

The utility model discloses a medium-sized and small-sized hydraulic drive four-wheel drive axle assembly for a grain harvester, which comprises a power input unit comprising a power input shaft and a second shaft which are arranged in parallel, and the power input shaft is connected with the second shaft through a first gear shifting structure; the differential unit comprises a differential shaft, the differential shaft penetrates through the differential, a differential gear is arranged on the differential shaft, and the differential gear is in meshed connection with a third gear arranged on the second shaft; the four-wheel-drive reversing unit comprises a steering gear shaft and a four-wheel-drive output shaft which are arranged in parallel, the steering gear shaft is in transmission connection with the second shaft through a gear shifting mechanism, and the steering gear shaft is connected with the four-wheel-drive output shaft through a transmission mechanism; according to the utility model, the problem that the power is small when the pressure of a hydraulic system is zero when the front wheel slips is solved, and meanwhile, various faults such as shaft breakage caused by the fact that the mechanical four-wheel drive box body and the hydraulic drive axle are not coaxial are also solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery drive technical field especially relates to the middle, small -size hydraulic drive four drive drive axle assembly for grain harvester. BACKGROUND

[0002] In recent years, the market demand of middle, small -size self -propelled four drive grain combine (the same below, the whole machine weight is in 5-9 tons) is flourishing. This kind of middle, small -size self -propelled grain combine has been matched with hydraulic four drive to provide power output hydraulic rear drive axle, mechanical four drive axle, 1, the hydraulic drive axle assembly has the insufficient traction, high cost, complex structure, the front wheel skids and the whole vehicle is difficult to get out of trouble and so on. 2, mechanical four drive exists the front and rear wheel asynchronization, and the axle is easily broken and so on, in order to concentrate the advantages of the two, the mechanical four drive is connected with the front wheel hydraulic four drive, but the axle is broken and so on in the joint matching of the two, in order to solve such fault, the market urgently needs a new middle, small -size hydraulic drive four drive axle assembly. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a middle, small -size hydraulic drive four drive drive axle assembly for grain harvester and agricultural machinery with it, aims at solving the existing technical problem.

[0004] In order to realize the above-mentioned purpose, the utility model provides a middle, small -size hydraulic drive four drive drive axle assembly for grain harvester, including power input unit, power input unit includes the power input shaft and two axle that are arranged in parallel, and the power input shaft and two axle are connected through gear shifting structure one between them;

[0005] Differential unit, including differential shaft, the differential shaft passes through the differential setting, and the differential shaft is equipped with differential gear, and the differential gear is connected with the third gear that is equipped on the two axle meshing;

[0006] Four drive reversing unit, including parallelly arranged steering gear shaft and four drive output shaft, the steering gear shaft is connected with two axle transmission through gear shifting mechanism, and the steering gear shaft is connected with four drive output shaft through transmission mechanism.

[0007] Further, one side of gear shifting structure one is equipped with two axle gear one coaxial with it, two axle gear one is connected with the first gear that is equipped on the power input shaft meshing, the other side of gear shifting structure one is equipped with two axle gear two coaxial with it, and two axle gear two is connected with the second gear that is equipped on the power input shaft meshing.

[0008] Further, the gear shifting mechanism comprises a gear shifting structure two, the steering gear shaft passes through the gear shifting structure two, the gear shifting structure two is provided with a bevel gear two on the steering gear shaft, the bevel gear two is connected with the bevel gear one, and the bevel gear one is arranged on the two shafts.

[0009] Further, the transmission mechanism connected with the steering gear shaft comprises a four-wheel drive gear arranged on the steering gear shaft and a reversing gear arranged on the four-wheel drive output shaft, and the four-wheel drive gear and the reversing gear are connected in meshing.

[0010] Further, the parking brake connected with the two shafts is further included.

[0011] Further, the service brake connected with the differential is further included.

[0012] An agricultural machine comprises the small and medium-sized hydraulic drive four-wheel drive axle assembly for the grain harvester.

[0013] The beneficial effects of the utility model are reflected in:

[0014] In the utility model, the problem that the power is small when the hydraulic system pressure is 0 caused by the front wheel slipping is solved, and various faults such as shaft breakage caused by the mechanical four-wheel drive box body and the hydraulic drive axle being different shafts are also solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model.

[0016] BRIEF DESCRIPTION OF DRAWINGS:

[0017] 1, power input shaft;2, first gear;3, two shaft gear one;4, two shafts;5, gear shifting structure one;6, two shaft gear two;7, second gear;8, third gear;9, differential shaft;10, differential gear;11, bevel gear one;12, bevel gear two;13, gear shifting structure two;14, steering gear shaft;15, four-wheel drive gear;16, reversing gear;17, four-wheel drive output shaft;18, parking brake;19, service brake. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] Please refer to Figure 1 The utility model provides a middle -small -size hydraulic drive four drive drive axle assembly for grain harvester, including power input unit, power input unit includes parallelly arranged power input shaft 1 and two axle 4, power input shaft 1 and two axle 4 are connected through gear shifting structure one 5 between them;

[0020] Specifically, one side of gear shifting structure one 5 is equipped with two axle gear one 3 coaxial with it, two axle gear one 3 is meshedly connected with first gear 2 arranged on power input shaft 1, the other side of gear shifting structure one 5 is equipped with two axle gear two 6 coaxial with it, two axle gear two 6 is meshedly connected with second gear 7 arranged on power input shaft 1.

[0021] Differential unit, including differential axle 9, differential axle 9 passes through differential and is equipped with differential gear 10 on differential axle 9, differential gear 10 is meshedly connected with third gear 8 arranged on two axle;

[0022] Four drive reversing unit, including parallelly arranged steering gear shaft 14 and four drive output shaft 17, steering gear shaft 14 is transmission connected with two axle 4 through gear shifting mechanism, and steering gear shaft 14 is connected with four drive output shaft 17 through transmission mechanism.

[0023] Specifically, gear shifting mechanism includes gear shifting structure two 13, steering gear shaft 14 passes through gear shifting structure two 13 and is equipped with bevel gear two 12 on steering gear shaft 14 on the end of gear shifting structure two 13, bevel gear two 12 is meshedly connected with bevel gear one 11, and bevel gear one 11 is arranged on two axle 4.

[0024] Specifically, the transmission mechanism connected with steering gear shaft 14 includes four drive gear 15 arranged on steering gear shaft 14 and reversing gear 16 arranged on four drive output shaft 17, and four drive gear 15 and reversing gear 16 are meshedly connected.

[0025] In the application, the parking brake 18 connected with the end of two axle 4 is further included.

[0026] In the application, the service brake 19 connected with the differential is further included.

[0027] The application has the following three working modes:

[0028] 1, when the grain harvester is mainly powered input shaft 1 in the harvesting operation, input drive drive axle assembly, when the grain harvester is harvesting, the gear shifting structure one 5 of drive axle assembly is adjusted through gear shifting soft shaft, specifically, power input shaft 1 drives first gear 2 to rotate and drive two axle gear one 3 and third gear 8, two axle 4 rotates and drives differential gear 10 to rotate, realizes power output, and rear drive gear shifting structure one 5 is changed to neutral position by soft shaft, so that the driving of grain harvesting is realized.

[0029] 2、When the grain harvester needs to quickly transfer in the transfer operation site, the drive axle assembly is adjusted to the neutral position by the rear drive shift structure 5 through the shift soft shaft, the shift structure 5 of the drive axle assembly is adjusted through the shift soft shaft, specifically, the power input shaft 1 drives the first gear 2 to rotate and drive the second axle gear 3 and the third gear 8, the second axle 4 rotates and drives the differential gear 10 to rotate, power output is realized, the high gear of the gearbox is adjusted, and thus the driving of the quick transfer of the grain harvester is realized.

[0030] 3、When the road surface is muddy, the front axle of the harvester slips, and the system pressure cannot be established, the shift soft shaft is used to adjust the shift structure 5 of the drive axle assembly, specifically, the power input shaft 1 drives the third gear 8 to rotate and drive the second axle gear 3 and the third gear 8, the second axle 4 rotates and drives the differential gear 10 to rotate, power output is realized, and thus the driving of the grain harvesting is realized, and at the same time, the rear drive shift structure 2 13 is adjusted to the gear position, specifically, the second axle gear 3 and the third gear 8, the second axle 4, the bevel gear 1 1 rotate, drive the bevel gear 2 12 and the four-wheel drive gear 15 to rotate, drive the reversing gear 16 and the reversing gear shaft 14 to work, realize the rear power output, and realize the driving of the rear wheels. Thus, the vehicle stuck phenomenon caused by the front wheel slipping is solved.

[0031] The structure of the application solves the problem of small power when the hydraulic system pressure is 0 caused by the front wheel slipping, and also solves various faults such as shaft breakage caused by the mechanical four-wheel drive gearbox and the hydraulic drive axle being different shafts, and ensures the movement of the medium and small agricultural machinery.

[0032] The application also provides a medium and small hydraulic drive four-wheel drive axle assembly for a grain harvester.

[0033] It should be noted that if the embodiment of the utility model has directionality indications such as up, down, left, right, front, back, etc., the directionality indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, such as shown in the drawings, if the specific posture changes, the directionality indications also change accordingly.

[0034] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, "multiple" means more than two. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist.

[0035] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A small and medium-sized hydraulic drive four-wheel drive axle assembly for a grain harvester, characterized in that: Comprising, a power input unit comprising a power input shaft (1) and a second shaft (4) arranged in parallel, the power input shaft (1) and the second shaft (4) being connected through a gear shifting structure (5); a differential unit comprising a differential shaft (9) passing through a differential, the differential shaft (9) being provided with a differential gear (10), the differential gear (10) being in meshing connection with a third gear (8) arranged on the second shaft (4); a four-wheel drive reversing unit comprising a steering gear shaft (14) and a four-wheel drive output shaft (17) arranged in parallel, the steering gear shaft (14) being in driving connection with the second shaft (4) through a gear shifting mechanism, and the steering gear shaft (14) being connected with the four-wheel drive output shaft (17) through a transmission mechanism.

2. The small and medium-sized hydraulic drive four-wheel drive axle assembly for grain harvester according to claim 1, characterized in that: One side of the gear shifting structure (5) is provided with a second shaft gear (3) coaxial therewith, the second shaft gear (3) being in meshing connection with a first gear (2) arranged on the power input shaft (1), the other side of the gear shifting structure (5) is provided with a second shaft gear (6) coaxial therewith, the second shaft gear (6) being in meshing connection with a second gear (7) arranged on the power input shaft (1).

3. The small and medium-sized hydraulic drive four-wheel drive axle assembly for grain harvester according to claim 1, characterized in that: The gear shifting mechanism comprises a gear shifting structure (13), the steering gear shaft (14) passes through the gear shifting structure (13), the gear shifting structure (13) is provided with a bevel gear (12) arranged on the steering gear shaft (14) at the end thereof, the bevel gear (12) is in meshing connection with a bevel gear (11), the bevel gear (11) is arranged on the second shaft (4).

4. The small and medium-sized hydraulic drive four-wheel drive axle assembly for grain harvester according to claim 1, characterized in that: The transmission mechanism connected with the steering gear shaft (14) comprises a four-wheel drive gear (15) arranged on the steering gear shaft (14) and a reversing gear (16) arranged on the four-wheel drive output shaft (17), the four-wheel drive gear (15) and the reversing gear (16) are in meshing connection.

5. The small and medium-sized hydraulic drive four-wheel drive axle assembly for grain harvester according to claim 1, characterized in that: Further comprising a parking brake (18) connected with the second shaft (4) at the end thereof.

6. The small and medium-sized hydraulic drive four-wheel drive axle assembly for grain harvester according to claim 1, characterized in that: Further comprising a service brake (19) connected with the differential.

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