CN212353645U

CN212353645U - Electric tractor with multiple power generation inputs

Info

Publication number: CN212353645U
Application number: CN202021998570.1U
Authority: CN
Inventors: 白元晓; 陈绍珍; 张汉林
Original assignee: Luoyang Youtewei Vehicle Industry Co ltd
Current assignee: Luoyang Youtewei Vehicle Industry Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-01-15
Anticipated expiration: 2030-09-14

Abstract

The application relates to a multi-path power generation input electric tractor which comprises a tractor body, a plurality of wheel assemblies, a power controller, a main power supply assembly and at least one supplementary power supply assembly, wherein the main power supply assembly and the at least one supplementary power supply assembly are arranged on the tractor body, the main power supply assembly comprises a main engine and a main generator, the supplementary power supply assembly comprises a supplementary engine and a supplementary generator, the main generator and the supplementary generator are electrically connected to the power controller, each wheel assembly comprises a hub motor, and each hub motor is independently arranged and electrically connected to the power controller. Due to the arrangement, the multi-power composite system is adopted to provide the power required by the traveling of the vehicle body, the power for the traveling of the whole vehicle is favorably enhanced, the increase and decrease adjustment of the power input can be carried out according to the actual condition, and the sufficient power and the cruising ability are ensured; and the power supply controller directly drives each hub motor, the structure is simple, the number of parts is small, a gearbox is not needed, and the speed can be automatically adjusted.

Description

Electric tractor with multiple power generation inputs

Technical Field

The application relates to the technical field of tractors, in particular to a multi-path power generation input electric tractor.

Background

At present, tractors used in agricultural production in China are still mainly traditional fuel oil tractors which work in low-speed and high-torque areas with high power in most time periods, so that the traditional fuel oil tractors have high energy consumption rate and poor emission performance, and cause damage to ecology, resources and environment. The electromotion of the engineering machinery is an important direction for future development, compared with a fuel tractor, the electric tractor almost disappears noise and vibration, people choking pollution emission is avoided, electric energy is needed for use, the daily cost is lower, and the driving operation is simpler and more reliable.

The existing electric tractor adopts a storage battery as a power source, the storage battery has the advantages of safety, real property and low price, but the shortage of the storage battery is gradually revealed, the service life is short, the dynamic property is insufficient, the land lead pollution is serious, and the application performance improvement is very limited. In order to ensure that the electric tractor has a good driving range, a large-capacity battery needs to be equipped, the large-capacity battery can cause the overall size of the battery pack to be overlarge, and the overall arrangement of the electric tractor has some interference. Moreover, the energy density of the battery is too low, the requirement cannot be met by charging, an engine is bound to be mounted for generating electricity, but the generating efficiency of the engine is certain, and the requirement that the tractor runs under a high-strength state cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art at least to a certain extent, the present application is directed to a multi-power generation input electric tractor which can solve the problems of insufficient power and limited cruising ability of the existing electric tractor. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the application are described in detail in the following.

The application provides a multichannel electricity generation input electric tractor, including the automobile body, be located the automobile body below is used for driving a plurality of wheel subassemblies, power controller, the setting that the automobile body was marchd are in main power supply subassembly and at least one supplementary power supply subassembly on the automobile body, main power supply subassembly including main engine and with the main generator that main engine transmission is connected, supplementary power supply subassembly including supplementary engine and with supplementary engine transmission connects the supplementary generator, main generator with supplementary generator all electrically connects to power controller, each wheel subassembly all includes in-wheel motor, and each in-wheel motor independently sets up, and electrically connects to power controller.

Preferably, the vehicle body comprises a front frame and a rear frame, and the front frame and the rear frame are connected through a hinge structure.

Preferably, the hinge structure comprises a front steering seat fixed on the front frame, a rear steering seat fixed on the rear frame, and a rotating shaft vertically connected to the front steering seat and the rear steering seat in a penetrating manner.

Preferably, be provided with steering cylinder on the preceding frame, steering cylinder's stiff end with preceding frame is articulated, the expansion end with the back turns to the seat and articulates, steering cylinder is provided with two, and is located respectively the both sides of pivot.

Preferably, the steering oil cylinder is connected with the rear steering seat through a slewing bearing.

Preferably, the main power supply assembly is arranged on the rear frame, and the supplementary power supply assembly is arranged on the front frame.

Preferably, the supplementary engine is in transmission connection with the supplementary generator through a front transfer case, and a front power takeoff connected with the front transfer case is arranged on the front side of the front frame; the main engine is in transmission connection with the main generator through a rear transfer case, and a rear power takeoff connected with the rear transfer case is arranged on the rear side of the rear frame.

Preferably, the wheel assembly further comprises a crawler wheel and a crawler belt engaged on the periphery of the crawler wheel, and the crawler wheel is in transmission connection with the hub motor.

Preferably, the wheel assembly further comprises a tire fixed to the outer periphery of the in-wheel motor.

Preferably, the unmanned driving module is in communication connection with the power supply controller.

The technical scheme provided by the application can comprise the following beneficial effects:

the main power supply assembly comprises a main engine and a main generator, wherein an output shaft of the main engine is in transmission connection with an input shaft of the main generator, and the main generator is driven to generate power through the operation of the main engine; the supplementary power supply assembly comprises a supplementary engine and a supplementary generator, an output shaft of the supplementary engine is in transmission connection with an input shaft of the supplementary generator, the supplementary generator is driven to generate power through the running of the supplementary engine, the main generator and the supplementary generator are electrically connected to the power controller, the advancing of the vehicle body is adjusted and controlled through the power controller, when the power required by the advancing of the vehicle body is small, only the main engine and the main generator are started, the advancing of the vehicle body is supplied with energy through the main generator alone, the energy consumption can be carried out in idle time, when the vehicle body needs more power and exceeds the optimal power range of the main generator, the supplementary engine and the supplementary generator start to work, the advancing power of the vehicle body is improved through multi-path power generation input, the power of the whole vehicle is enhanced, and the fact that the whole. Moreover, the engine is adopted to drive the generator to generate electricity, a rechargeable battery is not needed, and the cruising ability is favorably ensured.

Each wheel subassembly all is provided with in-wheel motor, and under in-wheel motor's effect, wheel subassembly drives the automobile body and advances, and in addition, the in-wheel motor on each wheel subassembly independently sets up and the electricity is connected to electrical source controller, through electrical source controller direct drive each in-wheel motor, simple structure, the part is few, does not need the gearbox, can realize automatically regulated speed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present multi-way power generating input electric tractor (track-type structure) shown in accordance with some exemplary embodiments;

FIG. 2 is a schematic structural diagram of the present multiple power generation input electric tractor (wheel configuration) according to some exemplary embodiments;

fig. 3 is a schematic structural view of a hinge structure shown in accordance with some exemplary embodiments.

In the figure: 1. a rear frame; 2. a main engine; 3. a main generator; 4. a wheel assembly; 5. a hinge structure; 6. a front frame; 7. supplementing the engine; 8. supplementing a generator; 9. a front power takeoff; 10. a rear power takeoff; 11. a hub motor; 12. a rear steering base; 13. a front steering base; 14. and a steering oil cylinder.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus or methods consistent with aspects of the present application.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1 to 3, the present embodiment provides a multi-channel power generation input electric tractor, which includes a tractor body, a plurality of wheel assemblies 4, a power controller, a main power supply assembly and a supplementary power supply assembly, wherein the wheel assemblies 4 are provided and uniformly distributed below the tractor body for driving the tractor body to travel, and specifically, the wheel assemblies 4 may be provided as a wheel type structure or a crawler type structure; the main power supply assembly and the supplementary power supply assembly are arranged on the vehicle body and used for providing electric energy required by the vehicle body to travel, and at least one supplementary power supply assembly is arranged and can be designed according to actual conditions and used for supplementing power to the whole vehicle.

The main power supply assembly comprises a main engine 2 and a main generator 3, an output shaft of the main engine 2 is in transmission connection with an input shaft of the main generator 3, and the main generator 3 is driven to generate electricity through the operation of the main engine 2; the supplementary power supply assembly comprises a supplementary engine 7 and a supplementary generator 8, an output shaft of the supplementary engine 7 is in transmission connection with an input shaft of the supplementary generator 8, the supplementary generator 8 is driven to generate electricity by the operation of the supplementary engine 7, the main generator 3 and the supplementary generator 8 are both electrically connected to the power controller, the advancing of the vehicle body is adjusted and controlled by the power controller, when the power required by the vehicle body is smaller, only the main engine 2 and the main generator 3 are started, the main generator 3 alone supplies power to the vehicle body, can consume energy in idle time, when the vehicle body needs more power and exceeds the optimal power range of the main generator 3, the supplementary engine 7 and the supplementary generator 8 start to work, the power of the vehicle body is improved through multi-path power generation input, so that the power of the whole vehicle is enhanced, and the fact that the whole vehicle has sufficient power is guaranteed. Moreover, the engine is adopted to drive the generator to generate electricity, a rechargeable battery is not needed, and the cruising ability is favorably ensured.

Each wheel subassembly 4 all is provided with in-wheel motor 11, and under in-wheel motor 11's effect, wheel subassembly 4 drives the automobile body and advances, and in addition, in-wheel motor 11 independent settings on each wheel subassembly 4 and the electricity is connected to electrical source controller, through electrical source controller direct drive each in-wheel motor 11, simple structure, the part is few, does not need the gearbox, can realize automatically regulated speed.

Due to the arrangement, the multi-power composite system is adopted to provide the power required by the traveling of the vehicle body, the power for the traveling of the whole vehicle is favorably enhanced, the increase and decrease adjustment of the power input can be carried out according to the actual condition, and the sufficient power and the cruising ability are ensured; and the power supply controller directly drives each in-wheel motor 11, the structure is simple, the number of parts is small, a gearbox is not needed, and the speed can be automatically adjusted.

In this embodiment, the vehicle body has a front frame 6 and a rear frame 1, and the front frame 6 and the rear frame 1 are connected by a hinge structure 5, specifically, a set of wheel assemblies 4 are respectively disposed on two sides of the front frame 6, and a set of wheel assemblies 4 are respectively disposed on two sides of the rear frame 1, so that the steering of the front frame 6 and the steering of the rear frame 1 are conveniently realized.

Wherein, the hinge structure 5 is including preceding seat 13 that turns to, the seat 12 that turns to after and the pivot, preceding seat 13 that turns to is fixed in preceding frame 6, the seat 12 that turns to after is fixed on frame 1 after, and all be provided with the through-hole that supplies pivot through connection on preceding seat 13 that turns to and the seat 12 that turns to after, the pivot is vertical to be set up, and rotationally connect in the through-hole, so that preceding seat 13 that turns to articulates together with the seat 12 that turns to after with, like this, simple structure, so that turn to the regulation about frame 6 and the frame 1 after in the realization.

As shown in fig. 3, in order to adjust the steering of the front frame 6 and the rear frame 1, a steering cylinder 14 is provided on the front frame 6, a fixed end of the steering cylinder 14 is hinged to the front frame 6, a movable end of the steering cylinder 14 is hinged to the rear steering seat 12, and the rear steering seat 12 is driven to rotate around a rotating shaft by the expansion and contraction of the steering cylinder 14. Specifically, the two steering cylinders 14 are oppositely arranged and are respectively located at two sides of the rotating shaft, when one steering cylinder 14 extends, the other steering cylinder 14 shortens, and the power for driving steering is large and balanced and stable.

Further, the steering cylinder 14 and the rear steering base 12 are connected through a slewing bearing, and the slewing bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments. The slewing bearing is generally provided with a mounting hole, an internal gear or an external gear, a lubricating oil hole and a sealing device, so that the main machine is compact in design structure, simple and convenient to guide and easy to maintain.

In some embodiments, the main power supply assembly is disposed on the rear frame 1, and correspondingly, one supplementary power supply assembly is disposed on the front frame 6, so as to form a dual-power generation input, and when the main power supply assembly supplies power alone, stable driving and steering of the front frame 6 can be ensured, and stability and reliability are achieved.

The main engine 2 is connected with the main generator 3 through a rear transfer case in a transmission mode, a rear power takeoff 10 connected with the rear transfer case is arranged on the rear side of the rear frame 1, specifically, the input end of the rear transfer case is connected with the output end of the main engine 2 in a transmission mode, one output end of the rear transfer case is connected with the input end of the main generator 3 in a transmission mode, and the other output end of the rear transfer case is connected with the rear power takeoff 10 in a transmission mode. The supplementary engine 7 is in transmission connection with the supplementary generator 8 through a front transfer case, a front power takeoff 9 connected with the front transfer case is arranged on the front side of the front frame 6, specifically, the input end of the front transfer case is in transmission connection with the output end of the supplementary engine 7, one output end of the front transfer case is in transmission connection with the input end of the supplementary generator 8, and the other output end of the front transfer case is in transmission connection with the front power takeoff 9. The power takeoff is a group of speed change gears, also called power output device, generally composed of a gear box and a clutch, connected with a transfer case by using gears, and connected with a lifting pump by a shaft, the lifting pump can be operated, and the power takeoff can also be connected with other functional components.

In some preferred schemes, the wheel assembly 4 is configured to be a crawler-type structure, and further includes a crawler wheel and a crawler belt engaged with the periphery of the crawler wheel, and the crawler wheel is in transmission connection with the in-wheel motor 11, so that the crawler wheel is driven by the in-wheel motor 11 to rotate, and further drives the crawler belt to rotate, and the vehicle body travels.

In other preferred schemes, the wheel assembly 4 is provided as a wheel structure and further includes a tire, and the tire is fixed on the periphery of the hub motor 11, so that the stator part of the hub motor 11 is fixedly connected with the vehicle body, and the rotor part is relatively fixed with the tire.

Certainly, the whole vehicle can use the unmanned technology, the multi-path power generation input electric tractor also comprises an unmanned module which can be in communication connection with the power supply controller, and the unmanned module can always keep high-efficiency operation and liberate manpower by using GPS satellite navigation, laser tracking and image recognition technologies.

It should be noted that the terms "first," "second," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element or function from another. The explained horizontal, vertical, up, down, left and right are the same when the multi-path power generation input electric tractor is in the state of being arranged as shown in figure 1.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the application comprise basic schemes of the schemes, are independent of each other and are not restricted to each other, but can be combined with each other under the condition of no conflict, so that multiple effects are achieved together.

While embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A multi-path power generation input electric tractor is characterized by comprising a tractor body, a plurality of wheel assemblies (4) which are positioned below the tractor body and used for driving the tractor body to move, a power supply controller, a main power supply assembly and at least one supplementary power supply assembly, wherein the main power supply assembly and the at least one supplementary power supply assembly are arranged on the tractor body, the main power supply assembly comprises a main engine (2) and a main generator (3) in transmission connection with the main engine (2), the supplementary power supply assembly comprises a supplementary engine (7) and a supplementary generator (8) in transmission connection with the supplementary engine (7), the main generator (3) and the supplementary generator (8) are both electrically connected to the power supply controller, each wheel assembly (4) includes a hub motor (11), and each hub motor (11) is independently arranged and electrically connected to the power supply controller.

2. The multi-power-generation-input electric tractor as claimed in claim 1, wherein the tractor body comprises a front frame (6) and a rear frame (1), and the front frame (6) and the rear frame (1) are connected through a hinge structure (5).

3. The multi-path power generation input electric tractor as claimed in claim 2, wherein the hinge structure (5) comprises a front steering seat (13) fixed on the front frame (6), a rear steering seat (12) fixed on the rear frame (1), and a rotating shaft vertically connected with the front steering seat (13) and the rear steering seat (12) in a penetrating manner.

4. The multi-path power generation input electric tractor as claimed in claim 3, wherein a steering oil cylinder (14) is arranged on the front frame (6), the fixed end of the steering oil cylinder (14) is hinged with the front frame (6), the movable end of the steering oil cylinder is hinged with the rear steering seat (12), and the two steering oil cylinders (14) are respectively positioned on two sides of the rotating shaft.

5. The multi-generation-input electric tractor as claimed in claim 4, wherein the steering cylinder (14) and the rear steering base (12) are connected by a slewing bearing.

6. The multi-power generation input electric tractor as claimed in claim 2, characterized in that the main power supply assembly is arranged on the rear frame (1), and the supplementary power supply assembly is arranged one and located on the front frame (6).

7. The multi-generation-input electric tractor as claimed in claim 6, characterized in that the supplementary engine (7) is in transmission connection with the supplementary generator (8) through a front transfer case, and a front power takeoff (9) connected with the front transfer case is arranged at the front side of the front frame (6); the main engine (2) is in transmission connection with the main generator (3) through a rear transfer case, and a rear power takeoff (10) connected with the rear transfer case is arranged on the rear side of the rear frame (1).

8. The multi-generation-input electric tractor as claimed in claim 1, wherein the wheel assembly (4) further comprises a track wheel and a track engaged on the outer periphery of the track wheel, and the track wheel is in transmission connection with the hub motor (11).

9. The multiple power generation input electric tractor according to claim 1, wherein the wheel assembly (4) further comprises a tire fixed to an outer periphery of the in-wheel motor (11).

10. The multi-generator input electric tractor as defined by claim 1 further comprising an unmanned module communicatively coupled to the power controller.