CN210416192U - Tractor chassis structure and tractor - Google Patents
Tractor chassis structure and tractor Download PDFInfo
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- CN210416192U CN210416192U CN201921477353.5U CN201921477353U CN210416192U CN 210416192 U CN210416192 U CN 210416192U CN 201921477353 U CN201921477353 U CN 201921477353U CN 210416192 U CN210416192 U CN 210416192U
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Abstract
The utility model provides a tractor chassis structure and a tractor, which relate to the technical field of vehicles and comprise a main motor, an auxiliary motor and a transmission positioned between the main motor and the auxiliary motor, wherein the main motor and the auxiliary motor are coaxially arranged; the rotating shaft of the main motor is in transmission connection with the input end of the speed changer, the output end of the speed changer is in transmission connection with one end of the rotating shaft of the auxiliary motor, and the other end of the rotating shaft of the auxiliary motor is in transmission connection with the transmission shaft of the vehicle body, so that a driving structure formed by connecting the main motor and the auxiliary motor together through the speed changer is formed. Therefore, the controller can acquire information of different speeds of the tractor and respective high-efficiency areas of the main motor and the auxiliary motor according to the speed sensor, the main motor is controlled and selected to drive independently or drive simultaneously by the auxiliary motor and match different driving modes of the speed changers with different gears, the torque required by driving is distributed reasonably according to the actual speed of the tractor, and the optimal utilization of the battery is achieved.
Description
Technical Field
The utility model relates to the technical field of vehicles, particularly, relate to a tractor chassis structure and tractor.
Background
In order to meet the requirements of social sustainable development, cleanness, environmental protection and high efficiency become new development targets of various industries. Among them, in the field of automobiles, electric automobiles have come to the fore by virtue of their advantages of zero emission, low noise, high efficiency, and the like. When the pure electric drive mode is applied to a large tractor, the high-noise and high-emission short plate of the traditional large tractor can be compensated through the advantage of electric drive, so that the novel port construction requirement of high automation and high environmental protection degree is met.
When the existing large port tractor uses pure electric drive, a single motor is usually adopted and matched with a traditional 9-gear gearbox or a traditional 12-gear gearbox to serve as a driving system, electric energy cannot be reasonably utilized in the driving process, and the power consumption is often large, so that the continuation of journey mileage with the elbow is originally caught and frost is added on snow.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough among the above-mentioned prior art, provide a tractor chassis structure and tractor, solve the shorter problem of current pure electric drive tractor continuation of the journey mileage.
In order to achieve the above object, the utility model adopts the following technical scheme:
one aspect of the present invention provides a tractor chassis structure, which includes a main motor, an auxiliary motor and a transmission disposed between the main motor and the auxiliary motor, wherein the main motor and the auxiliary motor are coaxially disposed; the rotating shaft of the main motor is in transmission connection with the input end of the speed changer, the output end of the speed changer is in transmission connection with one end of the rotating shaft of the auxiliary motor, and the other end of the rotating shaft of the auxiliary motor is in transmission connection with the transmission shaft of the vehicle body; the vehicle speed sensor is used for collecting vehicle speed information, and the controller is used for receiving the vehicle speed information, controlling the rotation of the main motor rotating shaft and the auxiliary motor rotating shaft and adjusting the gear of the transmission.
Optionally, the chassis structure of the tractor further comprises a frame, the frame comprises a first longitudinal beam and a second longitudinal beam, and the first longitudinal beam and the second longitudinal beam are arranged in parallel and are connected and fixed through a connecting piece; the main motor and the auxiliary motor are fixedly connected with the frame through mounting supports and are located on the inner sides of the first longitudinal beam and the second longitudinal beam.
Optionally, the chassis structure of the tractor further includes a controller mounting bracket fixedly connected to the frame and located inside the first longitudinal beam and the second longitudinal beam, the controller is disposed on the controller mounting bracket, the controller includes a vehicle controller, a main motor controller and an auxiliary motor controller electrically connected to each other, the vehicle controller is configured to receive vehicle speed information and send control signals to the main motor controller and the auxiliary motor controller, respectively; the main motor controller is used for receiving the control signal and controlling the rotation of the rotating shaft of the main motor, and the auxiliary motor is used for receiving the control signal and controlling the rotation of the rotating shaft of the auxiliary motor; the rated torque of the main motor is smaller than the rated torque of the auxiliary motor.
Optionally, the tractor chassis structure further comprises a high-voltage distribution box, an air conditioner compressor and a three-in-one controller, wherein the high-voltage distribution box, the air conditioner compressor and the three-in-one controller are located on the controller mounting support.
Optionally, the tractor chassis structure further includes a first battery cabinet and a second battery cabinet, and the first battery cabinet and the second battery cabinet are opposite and respectively disposed at outer sides of the first longitudinal beam and the second longitudinal beam; the first battery cabinet and the second battery cabinet are respectively provided with a battery frame, the battery frame is also provided with a plurality of batteries, and the batteries are used for supplying power to electric equipment of the vehicle body; the first battery cabinet and the second battery cabinet are also provided with openable cabinet doors.
Optionally, a pedal is further disposed on one side of the first battery cabinet adjacent to the cabinet door.
Optionally, the battery is a lithium iron phosphate battery.
Optionally, the transmission is a two speed transmission.
The utility model discloses an on the other hand provides a tractor, including driver's cabin and the above-mentioned arbitrary tractor chassis structure, tractor chassis structure includes the frame, and the driver's cabin is located one side of frame and is close to the tip of frame.
Optionally, the tractor further comprises a front axle assembly and a rear axle assembly located on the other side of the frame.
The beneficial effects of the utility model include:
the utility model provides a tractor chassis structure, which comprises a main motor, an auxiliary motor and a speed changer, wherein the main motor and the auxiliary motor are coaxially arranged, and the speed changer is positioned between the main motor and the auxiliary motor; the rotating shaft of the main motor is in transmission connection with the input end of the speed changer, the output end of the speed changer is in transmission connection with one end of the rotating shaft of the auxiliary motor, and the other end of the rotating shaft of the auxiliary motor is in transmission connection with the transmission shaft of the vehicle body, so that a driving structure formed by connecting the main motor and the auxiliary motor together through the speed changer is formed. The vehicle speed sensor is used for collecting vehicle speed information, and the controller is used for receiving the vehicle speed information, controlling the rotation of the main motor rotating shaft and the auxiliary motor rotating shaft and adjusting the gear of the transmission. Therefore, the controller can acquire information of different speeds of the tractor and respective high-efficiency areas of the main motor and the auxiliary motor according to the speed sensor, the main motor is controlled and selected to drive independently or drive simultaneously by the auxiliary motor and match different driving modes of the speed changers with different gears, the torque required by driving is distributed reasonably according to the actual speed of the tractor, and the optimal utilization of the battery is achieved.
The utility model also provides a tractor is applied to the tractor with foretell tractor chassis structure, is provided with the driver's cabin in the one end of frame to can rational utilization battery power in tractor actual operation, thereby increase continuation of the journey mileage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a chassis structure of a tractor according to an embodiment of the present invention;
fig. 2 is a second schematic structural view of a chassis structure of a tractor according to an embodiment of the present invention;
fig. 3 is a third schematic structural view of a chassis structure of a towing vehicle according to an embodiment of the present invention;
fig. 4 is a fourth schematic structural view of a chassis structure of a towing vehicle according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a tractor according to an embodiment of the present invention.
Icon: 100-main motor; 101-a transmission; 102-an auxiliary motor; 103-a drive shaft; 104-mounting a support; 105-a frame; 1051-a first stringer; 1052-a second stringer; 1061-a first battery cabinet; 1062-a second battery cabinet; 107-pedal; 108-a controller mounting bracket; 109-a controller; 1091-master motor controller; 1092-an auxiliary motor controller; 110-high voltage distribution box; 111-air conditioning compressor; 112-a three-in-one controller; 1063-cabinet door; 1064-battery frame connection seat; 113-traction saddles; 114-a front axle assembly; 115-a rear axle assembly; 116-a charging interface; 117-cab; 118-a guard rail; 119-braking air storage tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are only used for convenience of description and simplification of description, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In one aspect of the embodiment of the present invention, a tractor chassis structure is provided, as shown in fig. 1, including a main motor 100, an auxiliary motor 102 and a transmission 101 located between the main motor 100 and the auxiliary motor 102, which are coaxially disposed; the rotating shaft of the main motor 100 is in transmission connection with the input end of the speed changer 101, the output end of the speed changer 101 is in transmission connection with one end of the rotating shaft of the auxiliary motor 102, and the other end of the rotating shaft of the auxiliary motor 102 is in transmission connection with the vehicle body transmission shaft 103; the electric vehicle further comprises a vehicle speed sensor and a controller 109 electrically connected with the vehicle speed sensor, wherein the vehicle speed sensor is used for collecting vehicle speed information, and the controller 109 is used for receiving the vehicle speed information, controlling the rotation of the rotating shaft of the main motor 100 and the rotating shaft of the auxiliary motor 102 and adjusting the gear of the transmission 101.
For example, as shown in fig. 1, a main motor 100 and an auxiliary motor 102 are coaxially arranged, and a transmission 101 is arranged between the main motor 100 and the auxiliary motor 102, so that the main motor 100 and the auxiliary motor 102 can be motors with the same power or motors with different powers. During specific connection, a rotating shaft of the main motor 100 and an input end of the transmission 101 can be in transmission connection, an output end of the transmission 101 is in transmission connection with one end of a transmission shaft 103 of the auxiliary motor 102, the other end of the transmission shaft 103 of the auxiliary motor 102 is in transmission connection with the transmission shaft 103 in the vehicle body driving system, and therefore the main motor 100 and the auxiliary motor 102 are matched with different gears to complete driving of the vehicle body transmission shaft 103. Meanwhile, in order to better utilize the electric quantity of a battery in the pure electric tractor and avoid the situations of electric quantity waste and the like caused by unreasonable power distribution, a vehicle speed sensor and a controller 109 are further arranged, vehicle speed information acquired by the vehicle speed sensor is analyzed and judged by combining different high-efficiency areas of the main motor 100 and the auxiliary motor 102 through the controller 109, a control parameter is output to the main motor 100 or the auxiliary motor 102 or the main motor 100 and the auxiliary motor 102, different gears are matched simultaneously, and then the torque and the acceleration required by the vehicle can be analyzed and judged through the controller 109 according to different requirements of different states of the tractor, such as the fact that the vehicle is in different states of high speed, low speed and the size of an accelerator stepped by a driver, and the working mode of the motor is adjusted to be matched with the vehicle. The problem that the driving is carried out by simultaneously using two motors under the condition that the vehicle is in no load or the load is small so that the electric quantity is consumed too fast and the driving range of the tractor is short is finally solved.
Optionally, the chassis structure of the tractor further includes a frame 105, the frame 105 includes a first longitudinal beam 1051 and a second longitudinal beam 1052, and the first longitudinal beam 1051 and the second longitudinal beam 1052 are arranged in parallel and are connected and fixed by a connecting member; the main motor 100 and the auxiliary motor 102 are fixedly connected to the frame 105 via mounting brackets 104 and are located inside the first longitudinal beam 1051 and the second longitudinal beam 1052, respectively.
Illustratively, as shown in fig. 2, a driving system composed of a main motor 100 and an auxiliary motor 102 is disposed in a frame 105 in a chassis structure of the tractor, and the specific frame 105 includes a first longitudinal beam 1051 and a second longitudinal beam 1052, and the driving system is disposed between the two longitudinal beams and slightly close to the ground, and the specific arrangement manner may be as shown in fig. 1, where a mounting support 104 is respectively disposed on the main motor 100 and the auxiliary motor 102, and the mounting support 104 serves as a support structure, and two ends of the mounting support 104 are respectively fixedly connected with the first longitudinal beam 1051 and the second longitudinal beam 1052, so as to fixedly connect the main motor 100 and the auxiliary motor 102 with the frame 105. The structure of the mounting bracket 104 may be a U-shaped structure as shown in fig. 1, the concave surface of which is used for fixedly connecting with the main motor 100 or the auxiliary motor 102. Meanwhile, in order to reduce noise and vibration of the system, a shock pad can be arranged between the motor and the mounting support 104, and the arrangement of the shock pad can also reduce abrasion between the motor and the mounting support 104, so that the service life is prolonged. It should be noted that the above-mentioned mounting seat 104 can also be in various forms such as V-shape, straight shape, etc., as long as it can fix and support the motor.
Optionally, the chassis structure of the tractor further includes a controller mounting bracket 108 fixedly connected to the frame 105 and located inside the first longitudinal beam 1051 and the second longitudinal beam 1052, the controller 109 is disposed on the controller mounting bracket 108, the controller 109 includes a vehicle controller 109, a main motor controller 1091 and an auxiliary motor controller 1092 electrically connected to each other, the vehicle controller 109 is configured to receive vehicle speed information and send control signals to the main motor controller 1091 and the auxiliary motor controller 1092, respectively; the main motor controller 1091 is configured to receive a control signal and control the rotation of the rotating shaft of the main motor 100, and the auxiliary motor 102 is configured to receive the control signal and control the rotation of the rotating shaft of the auxiliary motor 102; the rated torque of the main motor 100 is smaller than the rated torque of the auxiliary motor 102.
Illustratively, as shown in fig. 3, a controller mounting bracket 108 is further disposed on the frame 105, and is detachably and fixedly connected to the frame 105, and the controller 109 is mounted on the controller mounting bracket 108. The controller 109 may specifically include a vehicle controller 109, a main motor controller 1091, and an auxiliary motor controller 1092. The vehicle controller 109 is configured to receive vehicle speed information, and at the same time, may also receive vehicle accelerator size information, vehicle load information, and the like, so as to comprehensively determine output power required by current driving of the vehicle, and output control signal parameters to the main motor controller 1091, the auxiliary motor controller 1092, and the transmission 101 in combination with the efficient intervals of the main motor 100 and the auxiliary motor 102, thereby completing control of the main motor controller 1091 and the auxiliary motor controller 1092 to enable the main motor 100 and the auxiliary motor 102 to be in a working state, and then the transmission 101 matches with a reasonable gear, thereby completing optimal selection of vehicle power distribution. Meanwhile, in order to increase more driving modes, the rated torque of the main motor 100 may be smaller than the rated rotation speed of the auxiliary motor 102 to finely match different states of the vehicle with the driving modes. The following will exemplify the shifting and control method with the main motor 100 rated at a lower torque (i.e., lower output power), the auxiliary motor 102 rated at a higher torque (i.e., higher output power), and the two-speed transmission 101:
when the tractor is in a starting stage and the rotating speed of the transmission shaft 103 is lower than 800rpm, the vehicle control unit 109 sends a control signal parameter to the main motor controller 1091, and the main motor 100 finishes driving in starting (namely, the transmission shaft 103 is lower than 800 rpm).
When the vehicle load is increased or needs to run at a higher speed, namely the rotating speed of the transmission shaft 103 is higher than 800rpm and the torque demand is greater than the rated torque of the main motor 100, control signal parameters are sent to the main motor controller 1091 and the auxiliary motor controller 1092 through the vehicle control unit 109, namely the auxiliary motor 102 is started while the main motor 100 runs at the rated torque, and the additionally required torque is distributed to the auxiliary motor 102, so that the vehicle meets the demand when the acceleration is larger or needed.
When the torque output of the auxiliary motor 102 exceeds 80% of the external characteristic torque, the torque demand that increases thereafter is preferentially allocated to the main motor 100 via the vehicle control unit 109 and the main motor controller 1091 until the torque of the main motor 100 reaches the designed limit value.
When the transmission 101 is required to shift gears, the auxiliary motor controller 1092 is controlled by the vehicle controller 109 to increase the torque of the auxiliary motor 102, and the main motor controller 1091 is controlled to decrease the torque of the main motor 100 until it is 0. The transmission 101 is then controlled to shift to the high gear.
Meanwhile, it should be noted that when the vehicle is in a long downhill, and the depth of the brake pedal 107 reaches 30%, the vehicle controller 109 controls the auxiliary motor controller 1092 to enable the auxiliary motor 102 to reverse by adopting the maximum power, so as to complete braking and energy recovery, further optimize the use of the vehicle battery, and increase the cruising range of the vehicle.
Optionally, the tractor chassis structure further includes a high voltage distribution box 110, an air conditioning compressor 111, and a triad controller 112 on the controller mounting bracket 108.
For example, as shown in fig. 3, a high voltage distribution box 110, an air conditioning compressor 111 and a three-in-one controller 112 are further disposed on the controller mounting bracket 108, wherein the high voltage distribution box 110 is used in the process of implementing braking energy feedback by using the auxiliary motor 102, and is mainly used as an intermediate bridge to perform on-off, control or protection functions. The air conditioner compressor 111 serves as a cooling and heating unit in the vehicle. The three-in-one controller 112 includes a DCDC and two inverters, and the DCDC is responsible for converting the high voltage in the entire vehicle into the low voltage of the low voltage system. The two inverters can convert the direct current electric energy into alternating current electric energy.
Optionally, the tractor chassis structure further includes a first battery cabinet 1061 and a second battery cabinet 1062, where the first battery cabinet 1061 and the second battery cabinet 1062 are opposite and disposed on the outer sides of the first longitudinal beam 1051 and the second longitudinal beam 1052, respectively; a battery frame is respectively arranged in the first battery cabinet 1061 and the second battery cabinet 1062, and a plurality of batteries are arranged on the battery frame and used for supplying power to electric equipment of the vehicle body; an openable and closable cabinet door 1063 is further provided on the first battery cabinet 1061 and the second battery cabinet 1062.
For example, as shown in fig. 2, in order to form an effective protection structure for the battery and prevent damage of external factors such as rain, a first battery cabinet 1061 and a second battery cabinet 1062 are respectively disposed on the outer sides of a first longitudinal beam 1051 and a second longitudinal beam 1052 of the frame 105, wherein the two battery cabinets may be symmetrically disposed or asymmetrically disposed (shown in fig. 2). The battery frames are arranged in the two battery cabinets, the battery frames and the cabinet body can be detachably connected in a bolt concealed mode, the integrity of the cabinet body is enhanced, and the attractiveness is improved. Specifically, the cells may be in a square lattice shape or an irregular lattice shape, and a supporting surface is provided in each lattice, and the cells are disposed on the supporting surface. It should be noted that the battery frame should be adaptively arranged according to the shape of the battery cabinet, and the space inside the cabinet body is utilized as much as possible, so that the number of batteries is increased, the electric quantity of the batteries is increased finally, and the increase of the cruising range of the vehicle is facilitated. As shown in fig. 4, openable and closable cabinet doors 1063 are provided on the first battery cabinet 1061 and the second battery cabinet 1062, so that a maintenance worker can conveniently maintain and replace the batteries in the battery cabinets. The specific opening and closing form can be a plurality of forms such as a buckling locking cabinet door 1063, a bolt locking cabinet door 1063 and the like. Meanwhile, after the first battery cabinet 1061 and the second battery cabinet 1062 are respectively and fixedly connected with the first longitudinal beam 1051 and the second longitudinal beam 1052, a battery frame connecting seat 1064 is further provided to further ensure connectivity and integrity of the two battery cabinets. To further improve the integration, the electric brake system of the vehicle may also be integrated in the second battery cabinet 1062 in fig. 4. In order to further improve the charging speed and the working time of the vehicle, the battery can be charged simultaneously in a double-gun charging mode, so that the charging time is effectively shortened.
Optionally, a pedal 107 is further disposed on a side of the first battery cabinet 1061 adjacent to the cabinet door 1063.
For example, in order to improve the convenience of the operator, a step plate 107 is further provided on one side of the first battery cabinet 1061, and as shown in fig. 2, the step plate 107 may be provided in a step-like multi-layer disconnection manner or in a step-like connection manner.
Optionally, the battery is a lithium iron phosphate battery.
In order to reduce the manufacturing cost of the vehicle, a mature lithium iron phosphate battery is adopted, and meanwhile, the lithium iron phosphate battery has the advantages of long service life and low loss.
Alternatively, the transmission 101 is a two speed transmission 101.
In the example, when the tractor is in a port working environment, the transmission 101 with two gears is adopted, so that the working conditions of variable port loads and frequent starting can be met, the complex structure of the transmission 101 can be simplified, the efficiency is improved, and the failure rate is reduced. Meanwhile, by matching the main motor 100 and the auxiliary motor 102, the gear position of the gearbox, the use condition of the motors (the speed change of the main motor 100+1 gear or the speed change of the main motor 100+2 gear), the speed change of the main motor 100+1 gear + the work of the auxiliary motor 102, the single work of the auxiliary motor 102 and other work modes can be reasonably adjusted according to the vehicle speed, the vehicle torque demand and the acceleration requirement, and the torque distribution of the two motors preferentially uses the control mode of the main motor 100 according to the torque and the duration. In addition, when the braking energy is fed back, the used auxiliary motor 102 acts reversely, so that the auxiliary motor is used as a retarder and a generator.
The utility model discloses a further aspect provides a tractor, including driver's cabin 117 and above-mentioned any kind of tractor chassis structure, tractor chassis structure includes frame 105, and driver's cabin 117 is located one side of frame 105 and is close to the tip of frame 105.
Illustratively, referring to fig. 5, the above-described tractor chassis structure is applied to a tractor, and a cab 117 is provided at one end of the frame 105, while the end is close to the main motor 100 and above the controller mounting bracket 108. Which is fixedly connected to the frame 105 and located above the frame 105 (i.e., on the side away from the bottom surface). The cab 117 may be an offset cab 117 (as shown in fig. 5) or an unbiased cab 117. The offset cab 117 has a better view, which effectively improves the working efficiency, and also improves the safety and reliability of the work during the work. A guard rail 118 and a charging interface 116 may also be provided in the vacated position of the offset cab 117.
Optionally, the towing vehicle further includes a front axle assembly 114 and a rear axle assembly 115 located on the other side of frame 105.
Illustratively, as shown in fig. 5, a front axle assembly 114 and a rear axle assembly 115 are provided on a side of frame 105 near the bottom surface. Front axle assembly 114 is located below cab 117, and includes tires and the like. The rear axle assembly 115 is located behind the cab 117, and also has a structure of a tire or the like. The propeller shaft 103 is used to drive the tires in the rear axle assembly 115. Meanwhile, a traction saddle 113 and a circuit interface can be arranged on the frame 105, so that the carriage can be hung and the circuit can be connected. Meanwhile, a brake air storage tank 119 is arranged at the tail part of the frame 105.
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 (10)
1. A tractor chassis structure is characterized by comprising a main motor, an auxiliary motor and a transmission, wherein the main motor and the auxiliary motor are coaxially arranged; the rotating shaft of the main motor is in transmission connection with the input end of the speed changer, the output end of the speed changer is in transmission connection with one end of the rotating shaft of the auxiliary motor, and the other end of the rotating shaft of the auxiliary motor is in transmission connection with the transmission shaft of the vehicle body; the vehicle speed sensor is used for collecting vehicle speed information, and the controller is used for receiving the vehicle speed information, controlling the rotation of the main motor rotating shaft and the auxiliary motor rotating shaft and adjusting the gear of the transmission.
2. The tractor chassis structure of claim 1, further comprising a frame including a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam being disposed in parallel and secured together by a connector; the main motor and the auxiliary motor are fixedly connected with the frame through mounting supports and are located on the inner sides of the first longitudinal beam and the second longitudinal beam.
3. The tractor chassis structure of claim 2, further comprising a controller mounting bracket fixedly connected to the frame and located inside the first longitudinal beam and the second longitudinal beam, wherein the controller is disposed on the controller mounting bracket, the controller includes a vehicle controller, a main motor controller and an auxiliary motor controller electrically connected to each other, the vehicle controller is configured to receive the vehicle speed information and send control signals to the main motor controller and the auxiliary motor controller, respectively; the main motor controller is used for receiving the control signal and controlling the rotation of the rotating shaft of the main motor, and the auxiliary motor is used for receiving the control signal and controlling the rotation of the rotating shaft of the auxiliary motor; the rated torque of the main motor is smaller than the rated torque of the auxiliary motor.
4. The tractor chassis structure of claim 3, further comprising a high voltage distribution box, an air conditioning compressor, and a tri-in-one controller on the controller mounting bracket.
5. The tractor chassis structure of claim 2, further comprising first and second battery cabinets disposed opposite and outboard of the first and second longitudinal beams, respectively; a battery frame is respectively arranged in the first battery cabinet and the second battery cabinet, a plurality of batteries are also arranged on the battery frame, and the batteries are used for supplying power to electric equipment of the vehicle body; and the first battery cabinet and the second battery cabinet are also provided with openable cabinet doors.
6. The tractor chassis structure of claim 5, further including a step on a side of the first battery compartment adjacent the door.
7. The tractor chassis structure of claim 5, wherein the battery is a lithium iron phosphate battery.
8. The tractor chassis structure of claim 1, wherein the transmission is a two-speed transmission.
9. Tractor, characterized in that it comprises a cab and a tractor chassis structure according to any of claims 1-8, said tractor chassis structure comprising a frame, said cab being located on one side of said frame and near an end of said frame.
10. The tractor of claim 9, further comprising a front axle assembly and a rear axle assembly located on the other side of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921477353.5U CN210416192U (en) | 2019-09-05 | 2019-09-05 | Tractor chassis structure and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921477353.5U CN210416192U (en) | 2019-09-05 | 2019-09-05 | Tractor chassis structure and tractor |
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| Publication Number | Publication Date |
|---|---|
| CN210416192U true CN210416192U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921477353.5U Active CN210416192U (en) | 2019-09-05 | 2019-09-05 | Tractor chassis structure and tractor |
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| CN (1) | CN210416192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884398A (en) * | 2020-07-15 | 2020-11-03 | 长城汽车股份有限公司 | Motor support for vehicle, motor assembly and vehicle |
| CN112590562A (en) * | 2020-12-22 | 2021-04-02 | 三一海洋重工有限公司 | Dual-motor control system and method |
-
2019
- 2019-09-05 CN CN201921477353.5U patent/CN210416192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884398A (en) * | 2020-07-15 | 2020-11-03 | 长城汽车股份有限公司 | Motor support for vehicle, motor assembly and vehicle |
| CN112590562A (en) * | 2020-12-22 | 2021-04-02 | 三一海洋重工有限公司 | Dual-motor control system and method |
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