CN111660803A

CN111660803A - Driving system, frame assembly and engineering vehicle

Info

Publication number: CN111660803A
Application number: CN202010614788.0A
Authority: CN
Inventors: 殷实; 楚兆平; 王永峰
Original assignee: Sany Automobile Manufacturing Co Ltd
Current assignee: Sany Automobile Manufacturing Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-09-15

Abstract

The invention provides a driving system, a frame assembly and an engineering vehicle. Wherein, the actuating system includes: a swing frame; the first drive axle is connected with the swing frame; and the second drive axle is connected with the swing frame, and the first drive axle and the second drive axle can swing relatively. The driving system provided by the invention is connected with the first driving axle and the second driving axle through the swing frame, and the first driving axle and the second driving axle can swing relatively, so that the relative positions of the first driving axle and the second driving axle can be adjusted by utilizing the swing frame under the condition of uneven construction road surface, further the construction stability of the engineering vehicle can be kept, the structure is simple, the cost is lower, the maintenance and the replacement are convenient, the reliability is high, and the driving system is suitable for popularization and application.

Description

Driving system, frame assembly and engineering vehicle

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a driving system, a frame assembly and an engineering vehicle.

Background

The current engineering vehicle, such as a land leveler, is a multifunctional earth working machine, and has the functions of bulldozing, loosening soil, high-speed snow shoveling, fine leveling operation and the like. In general, as shown in fig. 1, the driving system 100 'of the motor grader 300' includes a driving axle 102 'in the middle, balancing boxes 104' (or called sprocket boxes) on both sides of the driving axle, and four wheel rims 106 'connected to the balancing boxes 104', wherein the balancing boxes 104 'on both sides swing within a certain range relative to the driving axle 102' in the middle, and the power for the wheel operation is transmitted from the rear axle to the four wheel rims 106 'through chains, so that the whole balancing box 104' needs to be filled with lubricating oil due to the lubrication required by the chain transmission. However, because the construction surface of the grader 300 ' is uneven, the balance box 104 ' needs to swing relative to the drive axle 102 ' to keep the construction stable, and because the swing is frequent, the joint between the balance box 104 ' and the drive axle 102 ' is easy to wear and leak oil, and the maintenance and the replacement are troublesome.

Disclosure of Invention

The present invention is directed to solving or improving at least one of the technical problems of the prior art or the related art.

To this end, in a first aspect of the invention, a drive system is proposed.

In a second aspect of the present invention, a vehicle frame assembly is provided.

In a third aspect of the present invention, a work vehicle is provided.

In view of this, according to a first aspect of the present invention, there is provided a drive system comprising: a swing frame; the first drive axle is connected with the swing frame; and the second drive axle is connected with the swing frame, and the first drive axle and the second drive axle can swing relatively.

The driving system provided by the invention is specifically a driving system of an engineering vehicle, the engineering vehicle can be a land leveler, and the land leveler has the functions of soil pushing, soil loosening, high-speed snow shoveling, fine leveling operation and the like. The driving system comprises a swing frame, a first driving axle and a second driving axle, wherein the first driving axle and the second driving axle are connected with the swing frame, the first driving axle and the second driving axle are distributed along the first direction of the frame body, and specifically, the first direction is the length direction of the frame body, namely the direction from the head of the engineering vehicle to the tail of the vehicle. Specifically, first transaxle and second transaxle are engineering vehicle's well axle and rear axle respectively, and first transaxle is with power transmission to two wheel edges that are located the centre in order to drive the wheel operation that is located the centre, and the second transaxle is with power transmission to two wheel edges that are located the frame body rear in order to drive the wheel operation that is located the rear. But through the relative oscillation between first transaxle and the second transaxle for under the condition of construction road surface unevenness, utilize the swing span can adjust the relative position of first transaxle and second transaxle, and then can keep the stationarity of engineering vehicle construction, moreover, the steam generator is simple in structure, the cost is lower, compare with the construction road surface that adapts to the unevenness through the balance box relative to the transaxle swing among the correlation technique, this structure of balance box has been cancelled, convenient maintenance and change, and the reliability is high, and is suitable for popularization and application.

In addition, the engineering vehicle in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical solution, further, the method further includes: a connecting member; the swing span is provided with the installation department, and the installation department is located between first transaxle and the second transaxle, and the connecting piece rotates with the installation department to be connected.

In the technical scheme, the driving system further comprises a connecting piece, the swinging frame is provided with an installation part, and the installation part is rotatably connected with the installation part through the connecting piece, so that the installation part of the swinging frame and the connecting piece form a rotating pair, and the swinging frame can rotate in a certain angle relative to the connecting piece. Be located between first transaxle and the second transaxle through the installation department for under the condition of construction road surface unevenness, the swing span rotates for the connecting piece and can drives the relative swing between first transaxle and the second transaxle, and then adjusts the position relation between first transaxle and the second transaxle, can make the middle part wheel that is connected with first transaxle, the rear portion wheel that is connected with the second transaxle suits with the construction road surface of unevenness, in order to keep the stationarity of engineering vehicle construction, the work efficiency and the reliability of product are improved.

In any of the above technical solutions, further, the swing frame further includes: the first support assembly comprises two first support members which are oppositely arranged along a first direction, one of the two first support members is connected with the first drive axle, and the other one of the two first support members is connected with the second drive axle; the second support assembly is connected with the two first support pieces, the mounting part is a first connecting hole, and the second support assembly is provided with a first connecting hole; wherein, the connecting piece passes first connecting hole and is connected with the second supporting component.

In this technical scheme, the swing frame still includes first supporting component and second supporting component, and first supporting component includes two first supporting members that set up along first direction relatively, and two first supporting members are along the length direction interval distribution of frame body promptly. Wherein, a first support piece is connected with first transaxle, and another first support piece is connected with the second transaxle, and two first supporting component are connected to the second supporting component, are connected second supporting component and two transaxles through first supporting component promptly to be provided with first connecting hole at the second supporting component, wherein, first connecting hole is the installation department. The connecting piece passes first connecting hole and is connected with second supporting component, and then realizes that the connecting piece is connected with the rotation of swing span, will be connected with the swing span of first transaxle, second transaxle promptly through the connecting piece and be connected with other parts (like the frame body), simple structure, the cost is lower, and the reliability is higher.

In any of the above technical solutions, further, the second supporting assembly includes one or more second supporting members, the second supporting members are distributed at intervals perpendicular to the first direction, any one of the second supporting members is connected to two of the first supporting members, and any one of the second supporting members is provided with a first connecting hole.

In this solution, in one aspect, the second support assembly comprises a second support member; in another aspect, the second support assembly includes a plurality of second supports spaced apart perpendicular to the first direction. The swing frame comprises a frame body, a first support piece, a second support piece and a connecting piece, wherein the first support piece is connected with the second support piece through any second support piece, and the second support piece is provided with a first connecting hole, so that one second support piece or a plurality of second support pieces can be connected through the connecting piece, and the swing frame is connected with other components (such as the frame body) in a swinging mode.

In any of the above technical solutions, further, the number of the connecting pieces is one, and one connecting piece is connected with all the first connecting holes.

In the technical scheme, the number of the connecting pieces is one, and the connecting pieces are connected with all the first connecting holes through one connecting piece, so that the swinging frame can be rotatably connected with the connecting pieces. It can be understood that, when the swing span passes through the connecting piece and is connected with the frame body, be provided with the mounting hole on the frame body, the connecting piece connects gradually the mounting hole that is located a lateral wall of frame body, all first connecting holes, is located the mounting hole of another lateral wall of frame body, and then realizes that the swing span is connected with the swing of frame body, simple structure, and the reliability is high.

In any of the above technical solutions, further, the number of the second supporting members is two, the number of the connecting members is two, and any one of the connecting members is connected to one of the first connecting holes.

In the technical scheme, the number of the second supporting pieces is two, and the number of the connecting pieces is two, wherein one connecting piece is connected with the first connecting hole of one second supporting piece, and the other connecting piece is connected with the first connecting hole of the other second supporting piece, so that the two connecting pieces are respectively connected with one second supporting piece, and further the rotating connection of the swinging frame and the connecting pieces is realized. Specifically, when the swing span is connected with the frame body, two second supporting pieces are connected with the frame body through two short connecting pieces so as to realize the swing connection of the swing span and the frame body, the structure is simple, the reliability is high, and meanwhile, the use of connecting piece materials is favorably reduced, and further the manufacturing cost is reduced.

In any of the above technical solutions, further, the swing frame further includes: the third support assembly comprises two third support pieces which are oppositely arranged along the direction vertical to the first direction, any third support piece is connected with the first drive axle and the second drive axle, the mounting part is a second connecting hole, and any third support piece is provided with a second connecting hole; the connecting piece passes the second connecting hole and is connected with the third support piece.

In this solution, the swing frame includes a connecting member and a third support assembly, the third support assembly includes two third support members disposed opposite to each other in a direction perpendicular to the first direction, and the first drive axle and the second drive axle are connected by any one of the third support members, so that the first drive axle and the second drive axle are reliably connected by the two third support members. The second connecting hole is formed in any one of the third supporting pieces, the second connecting hole is an installation part, the connecting piece penetrates through the second connecting hole to be connected with the third supporting piece, the swinging frame is rotatably connected with the connecting piece, and the swinging frame is simple in structure, low in cost and high in reliability. Namely, the swing frame with the structure is an approximate H-shaped swing frame.

In any of the above technical solutions, further, the connecting member is a rod-shaped structure.

In this technical scheme, the connecting piece is shaft-like structure, the installation department is the curved surface hole, first connecting hole or second connecting hole are the curved surface hole promptly, make under the condition of construction road surface unevenness, shaft-like structure's connecting piece rotates along the curved surface in the installation department, be favorable to improving the swing span for other parts (like frame body) pivoted flexibility and reliability, and then can be under complicated construction road surface, the relative position of the first transaxle of rational adjustment and second transaxle, the stability and the reliability of engineering vehicle work are improved.

In any of the above technical solutions, further, the driving system further includes: an engine; a gearbox, the gearbox comprising: the input end is connected with the engine; the first output shaft is connected with the first drive axle; and the second output shaft is connected with the second drive axle.

In the technical scheme, the driving system further comprises an engine and a gearbox, and the engine provides power for the first driving axle and the second driving axle. Specifically, the engine is connected with the input end of the gearbox, a first output shaft of the gearbox is connected with a first drive axle, and a second output shaft of the gearbox is connected with a second drive axle, so that power provided by the engine is transmitted to the first drive axle through the first output shaft respectively after the speed of the gearbox is changed so as to drive wheels located in the middle of the frame body to run, and meanwhile, the power is transmitted to the second drive axle through the second output shaft so as to drive a vehicle located behind the frame body to run, and further the engineering vehicle is driven to run.

According to a second aspect of the present invention there is provided a vehicle frame assembly comprising: a frame body; and a drive system according to any one of the above first aspect, wherein the swing frame is connected to the body frame and is swingable relative to the body frame.

The invention provides a frame assembly, which comprises a frame body and a driving system of any one of the technical schemes of the first aspect, wherein a swing frame is connected with the frame body and can swing relative to the frame body. Because the frame assembly comprises the driving system of any one of the above technical schemes, the driving system has all the beneficial effects, and the description is omitted.

Specifically, the frame body is provided with the mounting hole, and the connecting piece connects gradually the mounting hole that is located a lateral wall of frame body, all installation departments, is located the mounting hole of another lateral wall of frame body, and then realizes the swing of swing span and frame body and be connected, simple structure, and the reliability is high.

According to a third aspect of the present invention, there is provided a work vehicle comprising: the drive system of any one of the aspects of the first aspect, or the frame assembly of any one of the aspects of the second aspect.

The invention provides an engineering vehicle, which comprises the driving system of any one of the first technical scheme or the frame assembly of any one of the second technical scheme. Since the engineering vehicle includes the drive system according to any one of the above first aspect or the frame assembly according to any one of the second aspect, all the advantages of the drive system or the frame assembly are achieved, and no further description is given here. Further, the engineering vehicle further includes: and the axle is connected with the frame body and is positioned on the same side of the first drive axle and the second drive axle.

In this technical scheme, engineering vehicle still includes the axle that is connected with the frame body, and the axle is located the same one side of first transaxle and second transaxle, and the axle is the front axle that is located frame body the place ahead promptly, and specifically, the front axle is used for adjusting engineering vehicle's traffic direction, provides power for first transaxle, second transaxle through the drive division to cooperate with the axle, can make engineering vehicle safe, reliably travel. Specifically, the axle may be a drive axle or a non-drive axle. When the axle is a drive axle, the axle comprises a hydraulic motor, the hydraulic motor is connected with an engine of the drive system through a hydraulic pump, and the power of the engine is transmitted to the hydraulic motor through the hydraulic pump and is directly transmitted to wheels by the hydraulic motor. That is, when the axle is a drive axle, the structure of the axle is different from the structures of the first drive axle and the second drive axle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a construction vehicle according to an embodiment of the related art;

FIG. 2 illustrates a schematic structural diagram of a vehicle provided in accordance with an embodiment of the present invention;

fig. 3 is a schematic structural view showing a drive system provided according to a first embodiment of the present invention;

FIG. 4 shows a schematic diagram of the structure from one perspective of the embodiment of FIG. 3;

FIG. 5 is a schematic view of a portion of the swing frame of the embodiment of FIG. 3;

fig. 6 is a schematic structural diagram showing a drive system according to a second embodiment of the present invention.

Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:

100 ' drive system, 102 ' drive axle, 104 ' balance box, 106 ' wheel rim, 300 ' grader.

The correspondence between reference numerals and part names in fig. 2 to 6 is:

100 drive system, 110 swing frame, 112 connecting piece, 114 first supporting component, 1142 first supporting component, 116 second supporting component, 1162 second supporting component, 1164 first connecting hole, 118 third supporting component, 1182 third supporting component, 120 first driving axle, 130 second driving axle, 140 axles, 200 frame component, 210 frame body and 300 engineering vehicle.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The drive system 100, the frame assembly 200 and the work vehicle 300 according to some embodiments of the present invention are described below with reference to fig. 2 to 6.

Example 1:

as shown in fig. 2 to 6, according to a first aspect of the present invention, there is provided a drive system 100, wherein the drive system 100 is a drive system of a work vehicle 300, and specifically, the work vehicle 300 is a grader, and has functions of dozing, loosening soil, high speed snow shoveling, fine leveling work, and the like.

As shown in fig. 2, the driving system 100 includes a swing frame 110, a first driving axle 120 and a second driving axle 130, wherein the first driving axle 120 and the second driving axle 130 are both connected to the swing frame 110, and the first driving axle 120 and the second driving axle 130 are distributed along a first direction of the frame body 210, specifically, the first direction is a length direction of the frame body 210, i.e., a direction from a head to a tail of the work vehicle 300, and a direction shown by an arrow a in fig. 2 is the first direction. Specifically, the first drive axle 120 and the second drive axle 130 are a middle axle and a rear axle of the engineering vehicle 300, respectively, the first drive axle 120 transmits power to two wheel rims located in the middle to drive the wheels located in the middle to operate, and the second drive axle 130 transmits power to two wheel rims located behind the frame body 210 to drive the wheels located behind to operate. As shown in fig. 2 and 3, the swing frame 110 is connected with the first drive axle 120 and the second drive axle 130, and the first drive axle 120 and the second drive axle 130 can swing relatively, so that under the condition of uneven construction road surface, the swing frame 110 can be used for adjusting the relative positions of the first drive axle 120 and the second drive axle 130, further the construction stability of the engineering vehicle 300 can be kept, the structure is simple, the cost is low, compared with the prior art that the balance box swings relative to the drive axles to adapt to uneven construction road surface, the structure of the balance box is cancelled, the maintenance and the replacement are convenient, the reliability is high, the cost is low, and the device is suitable for popularization and application.

Further, the driving system 100 further includes a connecting member 112, and the swing frame 110 is provided with a mounting portion, and is rotatably connected to the mounting portion through the connecting member 112, so that the mounting portion of the swing frame 110 and the connecting member 112 form a rotation pair, so that the swing frame 110 can rotate at a certain angle relative to the connecting member 112. The installation part is arranged between the first drive axle 120 and the second drive axle 130, so that under the condition of uneven construction road surface, the swing frame 110 rotates relative to the connecting piece 112 to drive the first drive axle 120 and the second drive axle 130 to swing relatively, further, the position relation between the first drive axle 120 and the second drive axle 130 is adjusted, the middle wheels connected with the first drive axle 120 and the rear wheels connected with the second drive axle 130 can be adapted to the uneven construction road surface, the construction stability of the engineering vehicle 300 is kept, and the work efficiency and the reliability of products are improved.

Example 2:

as shown in fig. 2 to 6, in an embodiment of the present invention, on the basis of the above embodiment 1, further, the swing frame 110 further includes: a first support assembly 114, wherein the first support assembly 114 includes two first supports 1142 oppositely disposed along a first direction, one of the two first supports 1142 is connected to the first drive axle 120, and the other is connected to the second drive axle 130; a second support assembly 116, wherein the second support assembly 116 is connected to the two first supports 1142, the mounting portion is a first connection hole 1164, and the second support assembly 116 is provided with the first connection hole 1164; wherein the connecting member 112 passes through the first connecting hole 1164 to connect with the second supporting member 116.

In this embodiment, as shown in fig. 2, 3, 4 and 5, the swing frame 110 further includes a first support assembly 114 and a second support assembly 116, and the first support assembly 114 includes two first supports 1142 oppositely disposed along a first direction, that is, the two first supports 1142 are spaced apart along the length direction of the frame body 210. One of the first supporting members 1142 is connected to the first driving axle 120, the other first supporting member 1142 is connected to the second driving axle 130, the second supporting member 116 is connected to the two first supporting members 114, that is, the second supporting member 116 is connected to the two driving axles through the first supporting members 114, and the second supporting member 116 is provided with a first connecting hole 1164. The first connecting hole is an installation portion, and the connecting member 112 passes through the first connecting hole 1164 to be connected to the second supporting assembly 116, so as to achieve the rotational connection between the connecting member 112 and the swing frame 110, that is, the swing frame 110 connected to the first driving axle 120 and the second driving axle 130 is connected to other components (the frame body 210) through the connecting member 112, and the structure is simple, the cost is low, and the reliability is high.

Further, the second supporting assembly 116 includes one or more second supporting members 1162, the plurality of second supporting members 1162 are spaced apart from each other perpendicular to the first direction, any one of the second supporting members 1162 is connected to two of the first supporting members 1142, and any one of the second supporting members 1162 is provided with a first connecting hole 1164.

Specifically, in one aspect, the second support assembly 116 includes a second support 1162; on the other hand, the second support assembly 116 includes a plurality of second supports 1162, and the plurality of second supports 1162 are spaced apart perpendicular to the first direction. The second supporting members 1162 are connected to the two first supporting members 1142, and each of the second supporting members 1162 is provided with a first connecting hole 1164, so that one second supporting member 1162 or a plurality of second supporting members 1162 can be connected to each other through the connecting member 112, thereby realizing the swing connection between the swing frame 110 and other components (such as the frame body 210).

Further, different numbers of the second supporting pieces 1162 can meet the requirements of different structures of the second supporting pieces 1162 and different positions of the second supporting pieces 1162, and the application range of the product is expanded.

In the above embodiment, further, the number of the connecting pieces 112 is one, and the swinging frame 110 can be rotatably connected to the connecting pieces 112 by connecting one connecting piece 112 to all the first connecting holes 1164. It can be understood that, when the swing frame 110 is connected to the frame body 210 through the connecting member 112, the frame body 210 is provided with a mounting hole, the connecting member 112 sequentially connects the mounting hole located on one side wall of the frame body 210, all the first connecting holes 1164, and the mounting hole located on the other side wall of the frame body 210, so as to realize the swing connection between the swing frame 110 and the frame body 210, and the structure is simple and the reliability is high.

Specifically, when the number of the connecting members 112 is one, the number of the second supporting pieces 1162 may be one, two, three, or other numbers. When the number of the second supporting members 1162 is two, the two second supporting members 1162 and the two first supporting members 1142 form an approximately rectangular frame, and one connecting member 112 penetrates through the two second supporting members 1162 to connect with the frame body 210, that is, the two second supporting members 1162 and the frame body 210 are connected by one longer connecting member 112, so as to realize the swing connection between the swing frame 110 and the frame body 210.

In the above embodiment, further, the number of the second supporting pieces 1162 is two, and the number of the connecting pieces 112 is two, wherein one connecting piece 112 is connected to the first connecting hole 1164 of one second supporting piece 1162, and the other connecting piece 112 is connected to the first connecting hole 1164 of the other second supporting piece 1162, so that the two connecting pieces 112 are respectively connected to one second supporting piece 1162, thereby realizing the rotational connection between the swing frame 110 and the connecting piece 112. Specifically, when the swing frame 110 is connected to the frame body 210, the two second supporting members 1162 are connected to the frame body 210 through the two short connecting members 112, so as to realize the swing connection between the swing frame 110 and the frame body 210, and the swing frame has a simple structure and high reliability, and is beneficial to reducing the material consumption of the connecting members 112, thereby reducing the manufacturing cost.

Further, the two connecting members 112 are respectively used to connect the mounting hole located on one side wall of the frame body 210 with one second supporting member 1162, so that when one of the connecting members 112 fails, one of the connecting members 112 can be replaced, which is beneficial to reducing the maintenance cost.

Example 3:

as shown in fig. 2 and fig. 6, in an embodiment of the present invention, on the basis of the above embodiment 1, further, the swing frame 110 further includes: the third supporting assembly 118, the third supporting assembly 118 includes two third supporting members 1182 arranged oppositely along a direction perpendicular to the first direction, any one of the third supporting members 1182 is connected to the first driving axle 120 and the second driving axle 130, the mounting portion is a second connecting hole, and any one of the third supporting members 1182 is provided with a second connecting hole; the connecting member 112 is connected to the third supporting member 1182 through the second connecting hole.

In this embodiment, as shown in FIG. 6, the swing frame 110 includes a link 112 and a third support assembly 118, and the third support assembly 118 includes two third supports 1182 disposed in opposition perpendicular to the first direction. The first drive axle 120 and the second drive axle 130 are connected through any one of the third supporting members 1182, so that the first drive axle 120 and the second drive axle 130 are reliably connected through the two third supporting members 1182, and a second connecting hole is formed through any one of the third supporting members 1182, wherein the second connecting hole is an installation part, and the connecting member 112 passes through the second connecting hole to be connected with the third supporting member 1182, so that the rotary connection between the swing frame 110 and the connecting member 112 is realized, and the swing frame is simple in structure, low in cost and high in reliability. That is, the swing frame 110 of this structure is an approximately H-shaped swing frame.

Example 4:

as shown in fig. 2 to 6, in an embodiment of the present invention, on the basis of any one of the above embodiments 1 to 3, further, the connecting member 112 is a rod-shaped structure.

In this embodiment, as shown in fig. 2 and fig. 6, the connecting member 112 is a rod-shaped structure, and the mounting portion is a curved hole, that is, the first connecting hole or the second connecting hole is a curved hole, so that the connecting member 112 of the rod-shaped structure rotates along a curved surface in the mounting portion when the construction road surface is not flat, which is beneficial to improving the flexibility and reliability of the rotation of the swing frame 110 relative to other components (such as the frame body 210), and further can reasonably adjust the relative positions of the first drive axle 120 and the second drive axle 130 under a complex construction road surface, thereby improving the stability and reliability of the work vehicle 300.

Specifically, the connecting member 112 is a connecting shaft, the mounting hole is a circular hole, and the mounting portion is a through hole with a diameter larger than that of the mounting shaft, i.e., the connecting member 112 can flexibly rotate in the through hole, and the connecting member 112 and the through hole form a revolute pair, so that the swing frame 110 can swing relative to the frame body 210.

Example 5:

as shown in fig. 2 to 6, in an embodiment of the present invention, on the basis of the above embodiments 1 to 4, further, the driving system 100 further includes: an engine; a gearbox, the gearbox comprising: the input end is connected with the engine; a first output shaft connected to the first drive axle 120; and a second output shaft connected with the second drive axle 130.

In this embodiment, drive system 100 further includes an engine and a gearbox, the engine powering first drive axle 120 and second drive axle 130. Specifically, the engine is connected to an input end of the transmission, a first output shaft of the transmission is connected to the first drive axle 120, and a second output shaft of the transmission is connected to the second drive axle 130, so that power provided by the engine is transmitted to the first drive axle 120 through the first output shaft to drive wheels located in the middle of the frame body 210 to operate after being changed in speed by the transmission, and is transmitted to the second drive axle 130 through the second output shaft to drive a vehicle located behind the frame body 210 to operate, thereby driving the engineering vehicle 300 to run.

Example 6:

as shown in fig. 2 to 6, according to a second aspect of the present invention, there is provided a frame assembly 200, comprising a frame body 210 and the driving system 100 of any one of the embodiments of the first aspect, wherein the swing frame 110 is connected to the frame body 210 and can swing relative to the frame body 210. Since the carriage assembly 200 includes the driving system 100 of any of the above embodiments, all the advantages of the driving system 100 will be provided, and will not be described herein again.

Specifically, the frame body 210 is provided with mounting holes, and the connecting member 112 sequentially connects the mounting hole and all mounting portions on one side wall of the frame body and the mounting hole on the other side wall of the frame body, so as to realize the swing connection between the swing frame 110 and the frame body 210.

Example 7:

as shown in fig. 2 to 6, according to a third aspect of the present invention, there is provided a work vehicle 300 including the drive system 100 of any one of the embodiments of the first aspect, or the frame assembly 200 of any one of the embodiments of the second aspect. Since the engineering vehicle 300 includes the driving system 100 of any embodiment of the first aspect or the frame assembly 200 of any embodiment of the second aspect, all beneficial effects of the driving system 100 or the frame assembly 200 are achieved, and are not described herein again. Further, as shown in fig. 2, the work vehicle 300 further includes an axle 140 connected to the frame body 210, the axle 140 is located on the same side of the first drive axle 120 and the second drive axle 130, that is, the axle 140 is a front axle located in front of the frame body 210, specifically, the front axle is used for adjusting the running direction of the work vehicle 300, and the first drive axle 120 and the second drive axle 130 are powered by the driving portion and are matched with the axle 140, so that the work vehicle 300 can run safely and reliably. Specifically, the axle 140 may be a drive axle or a non-drive axle. When the axle 140 is a drive axle, the axle 140 includes a hydraulic motor connected to an engine of the drive system 100 via a hydraulic pump, and power of the engine is transmitted to the hydraulic motor via the hydraulic pump and is directly transmitted to wheels by the hydraulic motor. That is, when the axle 140 is a transaxle, the structure of the axle 140 is different from the structures of the first and

second transaxles

120 and 130.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 2 to 6, the work vehicle 300 is a land leveler, which is a kind of multi-function earth working machine having functions of earth moving, soil loosening, high-speed snow shoveling, fine leveling work, and the like. The work vehicle 300 includes a frame body 210 and a drive system 100, and the drive system 100 includes a swing frame 110, a first drive axle 120, and a second drive axle 130, i.e., two drive axles are used to drive four drive wheels of the grader. The first drive axle 120 and the second drive axle 130 are installed on the swing frame 110, and the first drive axle 120 and the second drive axle 130 are distributed along the length direction of the frame body 210, the length direction of the frame body 210 is the direction from the front end to the rear end of the engineering vehicle 300, that is, the first drive axle 120 and the second drive axle 130 are respectively the middle axle and the rear axle of the grader. Then, the swing frame 110 is mounted on the frame body 210 through the connecting member 112, and the connecting member 112 and the mounting portion of the swing frame 110 form a rotation pair, so that the swing frame 110 can drive the first drive axle 120 and the second drive axle 130 to swing relatively through the rotation pair, that is, the first drive axle 120 and the second drive axle 130 swing relatively to the frame body 210, power is transmitted to the transmission case through the engine, and the transmission case is transmitted to the first drive axle 120 and the second drive axle 130 from the front and back directions through the first output shaft and the second output shaft, so as to realize power transmission.

When the grader encounters a rugged road surface, the swing frame 110 can swing within a certain range according to the actual gradient, so that the construction and the running stability of the grader are ensured.

Specifically, in one embodiment, the swing frame 110 includes a connector 112, two first support members 1142 spaced apart along the length of the frame body 210, and two second support members 1162 spaced apart perpendicular to the length of the frame body 210. One of the first supporting members 1142 is connected to the first driving axle 120, the other first supporting member 1142 is connected to the second driving axle 130, and any one of the second supporting members 1162 is connected to two of the first supporting members 1142, that is, the two first supporting members 1142 and the two second supporting members 1162 form an approximately rectangular frame. The second support piece 1162 is provided with a first connection hole 1164, two opposite side walls of the frame body 210 are provided with mounting holes, and the connection piece 112 passes through the first connection hole 1164 and the mounting holes to connect the swing frame 110 and the frame body 210 and enable the swing frame 110 to swing relative to the frame body 210 within a certain range.

Specifically, on the one hand, the number of the connecting pieces 112 is one, and one connecting piece 112 penetrates through two mounting holes and two first connecting holes 1164, i.e., two second supporting pieces 1162 and the frame body 210 are connected by one longer connecting piece 112, so as to realize the swinging connection of the swing frame 110 and the frame body 210.

On the other hand, the number of the connecting members 112 is two, and each connecting member 112 connects one mounting hole and one first connecting hole 1164, that is, two second supporting members 1162 and the frame body 210 through two short connecting members 112, so as to realize the swing connection of the swing frame 110 and the frame body 210.

In another embodiment, the swing frame 110 includes a link 112 and two third supports 1182, the two third supports 1182 being disposed opposite each other in a direction perpendicular to the first direction, and either of the third supports 1182 connecting the first drive axle 120 and the second drive axle 130. The first drive axle 120 and the second drive axle 130 are reliably connected through the two third support assemblies 118, a second connecting hole is formed through any one of the third support members 1182, and the connecting member 112 passes through the second connecting hole and the mounting hole to realize the swinging connection of the swing frame 110 and the frame body 210.

The driving system 100 provided by the invention has the advantages that the swing frame 110 is simple in structure, high in reliability and low in cost, even if two driving axles are used, the economy is better than that of a land leveler comprising a balancing box in the related technology, meanwhile, the driving system 100 provided by the invention cancels the structure of the balancing box in the related technology, the problems that the joint of the balancing box and the driving axles is easy to wear and leak oil due to frequent swing and the maintenance and replacement are troublesome are avoided, the maintenance and the replacement are convenient, and the driving system 100 is suitable for popularization and application.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drive system, comprising:

a swing frame;

the first drive axle is connected with the swing frame;

the second drive axle is connected with the swing frame;

the first drive axle and the second drive axle can swing relatively.

2. The drive system of claim 1, further comprising:

a connecting member;

the swing span is provided with the installation department, the installation department is located first transaxle with between the second transaxle, the connecting piece with the installation department rotates to be connected.

3. The drive system of claim 2, wherein the swing frame further comprises:

the first support assembly comprises two first support pieces which are oppositely arranged along a first direction, one of the two first support pieces is connected with the first drive axle, and the other one of the two first support pieces is connected with the second drive axle;

the second support assembly is connected with the two first support pieces, the mounting part is a first connecting hole, and the second support assembly is provided with the first connecting hole;

wherein the connecting piece passes through the first connecting hole and is connected with the second supporting component.

4. The drive system of claim 3,

the second support assembly comprises one or more second support pieces, the second support pieces are perpendicular to the first direction and distributed at intervals, any one of the second support pieces is connected with the two first support pieces, and the first connecting hole is formed in any one of the second support pieces.

5. The drive system of claim 4,

the number of the connecting pieces is one, and one connecting piece is connected with all the first connecting holes.

6. The drive system of claim 4,

the number of the second supporting pieces is two, the number of the connecting pieces is two, and any one of the connecting pieces is connected with one of the first connecting holes.

7. The drive system of claim 2, wherein the swing frame further comprises:

the third supporting assembly comprises two third supporting pieces which are oppositely arranged along a direction vertical to the first direction, any one of the third supporting pieces is connected with the first driving axle and the second driving axle, the mounting part is a second connecting hole, and any one of the third supporting pieces is provided with the second connecting hole;

the connecting piece penetrates through the second connecting hole to be connected with the third supporting piece.

8. The drive system of any one of claims 1 to 7, further comprising:

an engine;

a gearbox, the gearbox comprising:

an input end connected with the engine;

the first output shaft is connected with the first drive axle;

and the second output shaft is connected with the second drive axle.

9. A frame assembly, comprising:

a frame body; and

the drive system of any one of claims 1 to 8, said swing frame being connected to and swingable relative to said frame body.

10. A work vehicle, characterized by comprising:

the drive system of any one of claims 1 to 8; or

A frame assembly according to claim 9.