CN216580087U - Logistics vehicle chassis and logistics vehicle with same - Google Patents
Logistics vehicle chassis and logistics vehicle with same Download PDFInfo
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- CN216580087U CN216580087U CN202123213596.8U CN202123213596U CN216580087U CN 216580087 U CN216580087 U CN 216580087U CN 202123213596 U CN202123213596 U CN 202123213596U CN 216580087 U CN216580087 U CN 216580087U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model discloses a logistics vehicle chassis and a logistics vehicle with the same, wherein the logistics vehicle chassis comprises: the device comprises a frame, a front axle assembly, a rear axle assembly, a suspension system, a battery assembly and a driving motor; the frame extends along the front-back direction; the suspension system includes a front suspension by which the front axle assembly is connected to the front end of the frame and a rear suspension by which the rear axle assembly is connected to the rear end of the frame; the battery assembly comprises a battery compartment and a battery component arranged in the battery compartment, and the battery compartment is arranged on the frame and is positioned between the front axle assembly and the rear axle assembly; according to the logistics vehicle chassis, the battery assembly is arranged between the front axle assembly and the rear axle assembly, so that the weight of the battery assembly can be uniformly dispersed to the front axle assembly and the rear axle assembly, and the axle load of a front axle and the axle load of a rear axle of a vehicle can meet the design requirement.
Description
Technical Field
The utility model relates to the technical field of logistics, in particular to a logistics vehicle chassis and a logistics vehicle with the same.
Background
At present, the logistics industry is rapidly developed, the express order quantity per year is increased, the demand of manpower and vehicles are gradually increased, the distribution manpower quantity is increased, the manpower cost is continuously increased, the contradiction between the business demand and the manpower cost is continuously intensified, and the traditional logistics vehicle cannot solve the contradiction.
According to the characteristics of the logistics industry, domestic logistics are divided into long distance (provincial), medium and short distance (city interval) and short distance (terminal), the short distance terminal is used for one-kilometer distribution with most manpower demand, the terminal logistics scene is a closed or semi-closed community with good road conditions, a market, an industrial park, a school, a scenic spot and the like, and the system has the characteristics of short distance, complex road conditions, dense personnel, scattered distribution single parts, more manpower demand, high environmental protection requirement, low noise and the like. At present, the terminal logistics mainly comprise a small-brother electric tricycle and a minibus. The contradiction between business requirements and human costs is the most serious.
However, in the related art, although the unmanned logistics vehicles are adopted for terminal logistics, the existing unmanned logistics vehicles have unreasonable layout of parts and high axle load, which affects the overall performance of the logistics vehicles.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a logistics vehicle chassis, wherein a battery assembly is arranged between a front axle assembly and a rear axle assembly, so that the weight of the battery assembly is uniformly distributed to a front axle and a rear axle, and the axle load of the front axle and the rear axle of a vehicle can meet the design requirement.
The utility model further provides a logistics vehicle with the logistics vehicle chassis.
The logistics vehicle chassis according to the first aspect of the utility model comprises: a frame extending in a fore-and-aft direction; the front axle assembly is connected to the front end of the frame, and the rear axle assembly is connected to the rear end of the frame; a suspension system including a front suspension and a rear suspension, the front axle assembly being connected to the frame front end by the front suspension, the rear axle assembly being connected to the frame rear end by the rear suspension; the battery assembly comprises a battery bin and a battery component arranged in the battery bin, and the battery bin is arranged on the frame and is positioned between the front axle assembly and the rear axle assembly; the driving motor is arranged at the rear end of the frame.
According to the logistics vehicle chassis, the battery assembly is arranged between the front axle assembly and the rear axle assembly, so that the weight of the battery assembly can be uniformly dispersed to the front axle assembly and the rear axle assembly, and the axle load of a front axle and the axle load of a rear axle of a vehicle can meet the design requirement. In addition, through locating driving motor in the rear end of frame, not only can conveniently arrange driving motor, make things convenient for driving motor to be connected with the battery assembly, rearmounted driving motor can realize the back drive of commodity circulation car simultaneously to guarantee the operating stability of vehicle.
In some embodiments, the battery assembly comprises: the high-voltage power supply portion with low-voltage power supply portion interval arrangement in the battery compartment, high-voltage power supply portion includes power battery, vehicle control unit and/or the interface that charges, low-voltage power supply portion includes battery and/or fuse box.
In some embodiments, further comprising: the motor controller and the DC/DC converter are arranged between the battery bin and the driving motor.
In some embodiments, the frame includes a first longitudinal member and a second longitudinal member extending in the front-rear direction and spaced apart in the left-right direction, and the battery compartment is fixed to and located on the lower side of the first longitudinal member and the second longitudinal member.
In some embodiments, the first longitudinal beam and the second longitudinal beam are provided with a plurality of positioning frames arranged at intervals, the positioning frames extend upwards in the vertical direction, positioning pins and/or mounting holes are formed in the positioning frames, and the compartment of the logistics vehicle is fixed and supported on the first longitudinal beam and the second longitudinal beam through the positioning frames.
In some embodiments, the battery assembly includes one or more power batteries, the battery compartment has a slide rail disposed therein, and the power batteries are slidably disposed on the slide rail between the operating position and the replacement position.
In some embodiments, a locking mechanism is disposed in the battery compartment, and when the power battery is located in the working position, the locking mechanism is configured to lock the power battery in the working position.
In some embodiments, further comprising: the steering mechanism, the brake oil can and the electronic brake booster are all arranged at the front end of the frame; and/or the speed reducer and the EPB are arranged at the rear end of the frame, and the speed reducer is connected with the driving motor.
In some embodiments, further comprising: the front contact edge assembly is arranged on the front side of the frame, and the rear contact edge assembly is arranged on the rear side of the frame.
The logistics vehicle according to the second aspect of the utility model comprises a carriage and the logistics vehicle chassis according to the first aspect of the utility model, wherein the carriage is supported on the frame.
According to the logistics vehicle, the logistics vehicle chassis is arranged, so that the overall performance of the logistics vehicle is improved.
Additional aspects and advantages of the utility model 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 utility model.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of a logistics vehicular chassis according to an embodiment of the present invention;
fig. 2 is a schematic view of another angle of the logistics vehicular chassis shown in fig. 1.
Description of reference numerals:
the logistics vehicle chassis 100 is provided with a chassis,
the frame 10, the first longitudinal beam 11, the second longitudinal beam 12, the positioning frame 13, the positioning pin 131, the mounting hole 132, the cross beam 14,
the wheel assembly (30) is provided with a wheel,
the battery assembly 40, the battery compartment 41, the power battery 42, the vehicle control unit 43, the charging interface 44, the storage battery 45, the fuse box 46, the slide rail 47, the locking mechanism 48,
a drive motor 50, a motor controller 51, a DC/DC converter 52,
the suspension of the front suspension 61, the control arm 611,
a steering mechanism 62, a steering motor 621, a steering column belt drive shaft 622, a steering gear 623, a steering ECU624,
a front touch edge assembly 81, a rear touch edge assembly 82,
a brake system 90 and a brake 91.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
A logistics vehicle chassis 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 and 2, and the logistics vehicle chassis 100 of this embodiment is a drive-by-wire chassis.
As shown in fig. 1, a logistics vehicle chassis 100 according to an embodiment of the first aspect of the utility model comprises: frame 10, front axle assembly 21, rear axle assembly 22, the suspension system, battery assembly 40 and drive motor 50.
Specifically, the frame 10 extends in a front-rear direction (e.g., the front-rear direction shown in fig. 1); the front axle assembly 21 is connected to the front end of the frame 10, and the rear axle assembly 22 is connected to the rear end of the frame 10; the suspension system comprises a front suspension 61 and a rear suspension 71, wherein the front axle assembly 21 is connected to the front end of the frame 10 through the front suspension 61, and the rear axle assembly 22 is connected to the rear end of the frame 10 through the rear suspension 71; battery assembly 40 includes battery compartment 41 and battery pack, the battery pack locates in battery compartment 41, battery compartment 41 locates at frame 10, and battery compartment 41 locates between front axle assembly 21 and rear axle assembly 22, namely battery compartment 41 arranges in the middle position of frame 10 in the fore-and-aft direction; the driving motor 50 is provided at the rear end of the frame 10.
As shown in fig. 1, a vehicle frame 10 of the logistics vehicle extends in a front-rear direction, the vehicle frame 10 is used for mounting various parts of a chassis 100, and an upper side of the vehicle frame 10 is used for supporting a compartment or a container of the logistics vehicle. Front axle assembly 21 is arranged at the front end of frame 10, front axle assembly 21 includes front axle 211 extending along the left-right direction, wheel assemblies 30 of two front wheels are respectively connected to two ends of front axle 211, rear axle assembly 22 is arranged at the rear end of frame 10, rear axle assembly 22 includes rear axle 221 extending along the left-right direction, two wheels assemblies 30 of two rear wheels are respectively connected to two ends of rear axle 221, the front end of frame 10 is supported on front axle 211 of front axle assembly 21 through front suspension 61, and the rear end of frame 10 is supported on rear axle 221 of rear axle assembly 22 through rear suspension 71.
Further, the battery assembly 40 is used for providing power input for the logistics vehicle, and specifically, the battery assembly 40 includes a battery compartment 41, the battery compartment 41 is disposed in the middle of the vehicle frame 10, and the battery compartment 41 is used for accommodating all electrical components in the battery assembly 40, including the power battery 42. Here, it should be noted that the logistics vehicle of the present embodiment is an electric vehicle, the battery assembly in the battery assembly 40 includes a power battery 42, the power battery 42 is used as a power source of the entire vehicle, and the weight of the power battery 42 is heavier, in the present embodiment, the battery assembly 40 including the power battery 42 is disposed in the middle of the vehicle frame 10, so that the front axle assembly 21 and the rear axle assembly 22 can jointly support the battery assembly 40 through the vehicle frame 10, so that the weight of the battery assembly 40 can be uniformly dispersed over the front axle 211 and the rear axle 221 of the front axle assembly 21 and the rear axle assembly 22, and thus the axle loads of the front axle 211 and the rear axle 221 of the rear axle assembly 22 of the logistics vehicle can meet the design requirements.
Compared with the prior art in which the battery assembly is arranged at the front or the rear of the frame, the weight of the battery assembly is completely borne by the front axle or the rear axle, the axle load of the front axle or the rear axle is high, and the weight distribution of the whole vehicle is not uniform, but in the embodiment, the battery assembly 40 is arranged between the front axle assembly 21 and the rear axle assembly 22, so that the weight of the battery assembly 40 can be uniformly dispersed to the front axle assembly 21 and the rear axle assembly 22, and the axle load of the front axle 211 and the axle load of the rear axle 221 of the vehicle can both meet the design requirement.
In addition, this embodiment is through locating driving motor 50 in the rear end of frame 10, not only can conveniently arrange driving motor 50, makes things convenient for driving motor 50 to be connected with battery assembly 40, and the rear-mounted driving motor 50 can realize the back drive of commodity circulation car simultaneously to guarantee the operating stability of vehicle.
In short, according to the logistics vehicle chassis 100 of the utility model, the battery assembly 40 is arranged between the front axle assembly 21 and the rear axle assembly 22, so that the weight of the battery assembly 40 can be uniformly dispersed to the front axle assembly 21 and the rear axle assembly 22, and the axle load of the front axle 211 and the rear axle 221 of the vehicle can meet the design requirement.
In one embodiment of the present invention, a battery assembly includes: the high-voltage power supply portion and the low-voltage power supply portion are arranged in the battery compartment 41 at intervals, for example, the high-voltage power supply portion and the low-voltage power supply portion may be arranged in the battery compartment 41 at intervals from left to right, the high-voltage power supply portion includes a power battery 42, a vehicle control unit 43 and/or a charging interface 44, and the low-voltage power supply portion includes a storage battery 45 and/or a fuse box 46. The present embodiment can improve the safety and the operability of the vehicle by providing the high-voltage power supply portion and the low-voltage power supply portion separately.
As shown in fig. 1, the battery assembly 40 includes: battery compartment 41, power battery 42, vehicle control unit 43, charging interface 44, battery 45 and fuse box 46. Specifically, the battery compartment 41 is formed in a box shape of a frame, a length direction of the battery compartment 41 extends in a left-right direction, a width direction of the battery compartment 41 is in a front-rear direction, two regions are respectively arranged in the left-right direction in the area of the battery compartment 41, the left side is a high-voltage arrangement region, the right side is a low-voltage arrangement region, wherein the power battery 42, the vehicle controller 43 and the charging interface 44 are high-voltage electrical components, so the power battery 42, the vehicle controller 43 and the charging interface 44 are arranged in the high-voltage arrangement region on the left side of the battery compartment 41, and the storage battery 45 and the fuse box 46 are low-voltage electrical components, so the storage battery 45 and the fuse box 46 are arranged in the low-voltage arrangement region on the right side of the battery compartment 41. Optionally, the storage battery 45 may include one or a plurality of storage batteries 45 arranged at intervals, as shown in fig. 1, the storage battery 45 includes two storage batteries 45, and the two storage batteries 45 are respectively arranged at the front and rear sides of the fuse box 46. Therefore, in the embodiment, by arranging the electrical components in the battery compartment 41, the components in the battery compartment 41 can be in a relatively closed environment, safety and reliability are achieved, and meanwhile, the high-voltage power supply part and the low-voltage power supply part are arranged separately, so that the safety of the logistics vehicle and the operability of personnel are improved.
In an embodiment of the present invention, the logistics vehicle chassis 100 may further include: the driving device comprises a motor controller 51 and a DC/DC converter 52, wherein the motor controller 51 and the DC/DC converter 52 are arranged between the battery compartment 41 and the driving motor 50, the motor controller 51 is connected with the driving motor 50 and used for controlling the driving motor 50, the DC/DC converter 52 is also called a switching power supply or a switching regulator, DC refers to Direct Current (Direct Current) power supply, and the DC/DC converter 52 is a voltage converter which effectively outputs fixed voltage after converting input voltage. In the present embodiment, the motor controller 51 and the DC/DC converter 52 are disposed between the battery compartment 41 and the driving motor 50, so that the length of the high-voltage wire harness can be optimized, the compactness of the high-voltage system can be ensured, and the influence of EMC (Electro Magnetic Compatibility) on various parts of the whole vehicle can be reduced.
In one embodiment of the present invention, as shown in fig. 1, the vehicle frame 10 may include a first side member 11 and a second side member 12, the first side member 11 and the second side member 12 extending in the front-rear direction and being spaced apart in the left-right direction, and a battery compartment 41 fixed to the first side member 11 and the second side member 12 and located on the lower side of the first side member 11 and the second side member 12. In the embodiment, the battery bin 41 is fixed below the first longitudinal beam 11 and the second longitudinal beam 12, so that the available space of the top-loading container is large, the container is not influenced by factors of the chassis 100, the platformization of the wire-controlled chassis 100 is strengthened, the space utilization of the container is facilitated, and the volume of the container can be increased and divided arbitrarily according to requirements.
Alternatively, referring to fig. 1, the first longitudinal beam 11 and the second longitudinal beam 12 may be made of square steel, so that the longitudinal beam surfaces are low, for example, the first longitudinal beam 11 and the second longitudinal beam 12 of the frame 10 may be each cut by bending a square finished steel pipe of 30mm × 30 mm. The square finished steel pipe is mature and reliable in raw materials, can meet the requirements of the logistics vehicle on precision and rigidity, is free from die sinking, saves project cost and period, and reduces the cost of the whole vehicle. Of course, the screen-shot sizes of the first longitudinal beam 11 and the second longitudinal beam 12 in the present invention are not limited to this, and may be adjusted according to the load requirement and the rigidity requirement of the logistics vehicle.
In one embodiment of the present invention, as shown in fig. 1, each of the first longitudinal beam 11 and the second longitudinal beam 12 is provided with a plurality of positioning frames 13 arranged at intervals, the positioning frames 13 extend upward in the vertical direction, positioning pins 131 and/or mounting holes 132 are formed on the positioning frames 13, and the compartment or the cargo box of the logistics vehicle is fixed and supported on the first longitudinal beam 11 and the second longitudinal beam 12 through the positioning frames 13. By arranging a plurality of positioning frames 13 on the first longitudinal beam 11 and the second longitudinal beam 12, the welding precision of the frame 10 and the installation precision of a carriage or a container can be ensured, and the precision of the unmanned sensor is ensured.
As shown in fig. 1, the first longitudinal beam 11 and the second longitudinal beam 12 extend forward and backward and are arranged in parallel and at intervals in the left-right direction, two positioning frames 13 arranged at intervals forward and backward are arranged on the first longitudinal beam 11, two positioning frames 13 arranged at intervals forward and backward are arranged on the second longitudinal beam 12, and the plurality of positioning frames 13 are respectively located at the front and rear ends of the first longitudinal beam 11 and the second longitudinal beam 12, wherein the two positioning frames 13 on the first longitudinal beam 11 are respectively aligned with the two positioning frames 13 on the second longitudinal beam 12 in the left-right direction. Further, the four positioning frames 13 are respectively provided with a mounting hole 132, two positioning frames 13 of the four positioning frames 13 are provided with positioning pins 131 extending upwards, and preferably, the positioning frame 13 on the front side of the first longitudinal beam 11 and the positioning frame 13 on the rear side of the second longitudinal beam 12 are provided with the positioning pins 131, so that the two positioning pins 131 on the first longitudinal beam 11 and the second longitudinal beam 12 can form a structure arranged diagonally to form the diagonal positioning pins 131, thereby ensuring the welding precision of the frame 10 and the mounting precision of the carriage or the cargo box, and providing guarantee for the precision of the unmanned sensor.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the battery assembly may include one power battery 42, and the number of the power batteries 42 may also be multiple, for example, two, three, or more power batteries 42 may be provided. Power battery 42 and battery compartment 41 can dismantle the connection, from this, can conveniently change power battery 42, reduces the running cost of commodity circulation car. The number of the power batteries 42 can be adjusted according to the cruising requirement of the logistics vehicle.
Further, as shown in fig. 2, a slide rail 47 is provided in the battery compartment 41, and the power battery 42 is slidably provided on the slide rail 47 between the operating position and the replacement position. For example, the slide rail 47 is disposed at the bottom of the battery compartment 41, the slide rail 47 includes two slide rails 47, two slide rails 47 extend in the left-right direction and are disposed at intervals in the front-back direction, and the power battery 42 is slidably disposed on the slide rail 47 and is slidable between an operating position and a replacement position, wherein when the power battery 42 is in the operating position, the power battery 42 is connected to an electrical component of the logistics vehicle for providing power output for the entire vehicle, and when the power battery 42 runs out of electricity and needs to be replaced, the power battery 42 can be moved to the replacement position, and at this time, the logistics vehicle can be removed through the power battery 42, so as to implement replacement. The power battery 42 may be replaced manually by an operator or automatically. The quick-change function of the power battery 42 of the embodiment can prolong the driving range and the service time of the logistics vehicle, and further reduce the operation cost of customers.
In one embodiment of the present invention, a locking mechanism 48 may be disposed in the battery compartment 41, and the locking mechanism 48 is used for locking the power battery 42 in the working position when the power battery 42 is in the working position. Through setting up 48 locking power battery 42 of locking mechanism, can guarantee that power battery 42 can firmly be fixed in operating position, avoid power battery 42 to rock or remove at commodity circulation car operation in-process, guarantee that power battery 42 can be all the time and normally supply power to provide the power supply, guarantee the normal operating of commodity circulation car.
In an embodiment of the present invention, the logistics vehicle chassis 100 may further include: a front suspension 61, a steering mechanism 62, a brake oil can 63 and an IBS (Ibooster, electronic brake booster 64), wherein the front suspension 61, the steering mechanism 62, the brake oil can 63 and the IBS64 are all provided at the front end of the frame 10; the front suspension 61 is connected between the front axle assembly 21 and the frame 10, the front end of the frame 10 is supported on a front shaft 211 of the front axle assembly 21 through the front suspension 61, the steering mechanism 62 is used for steering the logistics vehicle, and the braking mechanism is used for braking the logistics vehicle.
The Steering mechanism 62 adopts an EPS (Electrical Power Steering) mode to electrically control Steering, and is connected with a Steering gear 623 through a Steering column belt transmission shaft 622 by a Steering motor 621; the steering motor 621 is connected with the first longitudinal beam 11 and the second longitudinal beam 12 through the cross beam 14 at the front part of the frame 10, and the steering gear 623 is connected with the first longitudinal beam 11 and the second longitudinal beam 12 through the front axle assembly 21, so that the steering operation reliability and safety of the logistics vehicle chassis 100 of the embodiment can be ensured, and the steering ECU (Electronic Control Unit) 624 is used for receiving a signal of the whole vehicle to Control steering, so that the unmanned Control steering is realized.
The logistics vehicle braking system 90 is divided into service braking and emergency braking, the service braking adopts IBS (electronic Brake booster 64) as a power source, the IBSECCU 65 (electronic control unit of the electronic Brake booster 64) receives a vehicle signal, unmanned control braking is realized, hydraulic boosting is adopted to implement braking through a Brake 91, a Brake oil can 63 is arranged on a cross beam 14 at the front part of the vehicle frame 10 and is convenient to fill, the emergency braking and parking braking adopt EPB73(electric Park Brake system), the EPB73 (electronic parking Brake system) is arranged in the middle of the rear axle assembly 22 and is integrated at the output end of a motor, the EPB controller 74 (controller of the electronic parking Brake system) receives the vehicle signal, redundant braking is realized, and the safety of the unmanned vehicle is improved. The form of the brake 91 of the present application is not limited to a disc brake and a drum brake.
In an embodiment of the present invention, the logistics vehicle chassis 100 can further include: rear suspension 71, speed reducer 72, and EPB73(electric Park Brake system), rear suspension 71, speed reducer 72, and EPB73 are provided at the rear end of frame 10, and speed reducer 72 is connected to drive motor 50. Wherein, rear suspension 71 is connected between rear axle assembly 22 and frame 10, and the rear end of frame 10 supports on rear axle 221 of rear axle assembly 22 through rear suspension 71, and reduction gear 72 directly links with driving motor 50, has saved suspension, transmission shaft, makes compact structure, and transmission efficiency is high.
In one embodiment of the present invention, further comprising: a front edge assembly 81 and a rear edge assembly 82, wherein the front edge assembly 81 is disposed at the front side of the frame 10, and the rear edge assembly 82 is disposed at the rear side of the frame 10. The front contact edge assembly 81 and the rear contact edge assembly 82 achieve signal acquisition effects of pedestrian protection and touch scram through sensors.
The logistics vehicle according to the second aspect of the utility model comprises a compartment and the logistics vehicle chassis 100 according to the first aspect of the utility model, wherein the compartment is supported on the vehicle frame 10.
Other configurations and operations of the logistics cart according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
According to the logistics vehicle disclosed by the embodiment of the utility model, by arranging the logistics vehicle chassis 100 disclosed by the first aspect of the utility model and arranging the driving motor 50 at the rear end of the vehicle frame 10, the driving motor 50 can be conveniently arranged, the driving motor 50 can be conveniently connected with the battery assembly 40, and meanwhile, the rear driving of the logistics vehicle can be realized by the rear driving motor 50, so that the running stability of the vehicle is ensured. In addition, the battery assembly 40 is arranged between the front axle assembly 21 and the rear axle assembly 22, so that the weight of the battery assembly 40 can be uniformly dispersed to the front axle assembly 21 and the rear axle assembly 22, the axle load of the front axle 211 and the axle load of the rear axle 221 of the vehicle can meet the design requirement, and the overall performance of the logistics vehicle can be improved.
A logistics cart according to one embodiment of the present invention will be described with reference to fig. 1-2. The logistics vehicle of this embodiment specifically is an automatic, unmanned, pure electronic, low-speed commodity circulation delivery car, and the logistics vehicle of this embodiment can realize automatic unmanned commodity circulation delivery through carrying packing box express delivery cabinet and automatic driving part according to customer's demand.
Referring to fig. 1, the logistics vehicle of the present embodiment includes: logistics vehicle chassis 100 and the packing box, carriage or express delivery cabinet of setting on chassis 100.
Specifically, as shown in fig. 1, the logistics vehicle chassis 100 is a drive-by-wire chassis 100, and the drive-by-wire chassis 100 includes: the vehicle comprises a vehicle body, a front axle assembly 21, a rear axle assembly 22, a battery assembly 40, a suspension system, a steering mechanism 62, a brake system 90, a driving motor 50, a motor controller 51 and a DC/DC converter 52.
Wherein, the automobile body includes frame 10 and touches limit assembly, and frame 10 includes: a first longitudinal beam 11, a second longitudinal beam 12 and a plurality of cross beams 14 connected between the first longitudinal beam 11 and the second longitudinal beam 12. The first longitudinal member 11 and the second longitudinal member 12 extend in the front-rear direction and are spaced apart from each other in the left-right direction, and the plurality of cross members 14 extend in the left-right direction and are spaced apart from each other in the front-rear direction.
The first longitudinal beam 11 and the second longitudinal beam 12 are made of square steel, the longitudinal beam surface is low, all parts of the chassis 100 are arranged below the first longitudinal beam 11 and the second longitudinal beam 12, the usable space of the loading box is guaranteed to be large, the loading box is not influenced by the factors of the chassis 100, the platformization of the wire control chassis 100 is strengthened, the space utilization of the loading box is facilitated, and the volume of the loading box can be increased and divided randomly according to the requirement.
Preferably, the first side member 11 and the second side member 12 of the frame 10 of the present embodiment are formed by bending and cutting a square finished steel tube of 30mm × 30 mm. The square finished steel pipe has the advantages of being mature and reliable in raw materials, capable of guaranteeing the requirements of vehicle precision and rigidity, free of die sinking, saving project cost and period and reducing the cost of the whole vehicle. Of course, the sectional sizes of the first longitudinal beam 11 and the second longitudinal beam 12 are not limited to this, and can be adjusted according to the vehicle load requirement and the rigidity requirement.
Furthermore, a plurality of positioning frames 13 are arranged on the first longitudinal beam 11 and the second longitudinal beam 12, and diagonal positioning pins 131 are arranged on the plurality of positioning frames 13, so that the overall system precision and the container installation precision of the frame 10 are ensured, and the precision of the unmanned sensor is ensured. In addition, since all the components take the first longitudinal beam 11 and the second longitudinal beam 12 as carriers as a reference, and the diagonal positioning pins 131 are designed on the first longitudinal beam 11 and the second longitudinal beam 12, the welding precision and the container installation precision of the frame 10 can be ensured, and the precision of the unmanned sensor is ensured.
It should be noted that the positions of the positioning frames 13 on the first longitudinal beam 11 and the second longitudinal beam 12, which are provided with the positioning pins 131 and the mounting holes 132, can be adaptively adjusted according to the size requirements of the cargo box and the express cabinet and the performance requirements of the entire vehicle, and the cargo box express cabinet can be designed according to the requirements of the cargo box express cabinet, so that the maximum universality of the platform is realized.
The contact edge assembly includes a front contact edge assembly 81 and a rear contact edge assembly 82. Front bead assembly 81 is attached to the front side of frame 10 and rear bead assembly 82 is attached to the rear side of frame 10. Namely, the front contact edge assembly 81 and the rear contact edge assembly 82 are respectively positioned in the front and the rear of the frame 10, and the signal acquisition functions of pedestrian protection and touch scram are realized through sensors.
The front axle assembly 21 includes: the front axle 211 extends along the left and right sides, the left and right ends of the front axle 211 are respectively connected with the wheel assemblies 30 of two front wheels, wherein the front axle assembly 21 of the chassis 100 adopts a four-bar integral front axle structure, and the front suspension 61, the steering mechanism 62, the IBS64 of the brake system 90 and the brake oil pot 63 are all arranged at the front part of the frame 10.
The rear axle assembly 22 includes: the rear axle 221 extends left and right, and the left and right ends of the rear axle 221 are connected to the wheel assemblies 30 of the two rear wheels, respectively. The rear axle of the wire control chassis 100 is of a four-bar integral rear axle structure, the rear suspension 71, the speed reducer 72 and the EPB73 are all arranged at the rear part of the frame 10, the integrated speed reducer 72 is arranged on the rear axle assembly 22, and the speed reducer 72 is directly connected with the driving motor 50, so that the suspension and the transmission shaft are saved, the structure is compact, and the transmission efficiency is high.
The suspension system of the drive-by-wire chassis 100 comprises a front suspension 61 and a rear suspension 71, wherein the front suspension 61 and the rear suspension 71 both adopt an integral bridge-belt four-bar dependent suspension, one end of a control arm 611 of the front suspension 61 is connected with a first longitudinal beam 11 and a second longitudinal beam 12 through a battery compartment 41, and the other end of the control arm 611 of the front suspension 61 is connected with a front axle assembly 21. One end of the control arm of the rear suspension 71 is connected with the first longitudinal beam 11 and the second longitudinal beam 12 through the battery compartment 41, and the other end of the control arm of the rear suspension 71 is connected with the rear axle assembly 22.
The steering mechanism 62 of the steer-by-wire chassis 100 includes: steering motor 621, steering column belt transmission shaft 622, steering gear 623. The steering mechanism 62 adopts an EPS form to electrically control steering, and is connected with a steering gear 623 through a steering column belt transmission shaft 622 by a steering motor 621; the steering motor 621 is connected with the first longitudinal beam 11 and the second longitudinal beam 12 through the cross beam 14 at the front part of the frame 10, and the steering gear 623 is connected with the first longitudinal beam 11 and the second longitudinal beam 12 through the front axle assembly 21 so as to ensure the reliability and safety of the steering operation of the wire-controlled chassis 100 of the embodiment, and the steering ECU624 is used for receiving the signal of the whole vehicle to control the steering, so that the unmanned control steering is realized.
The brake system 90 of the chassis by wire 100 includes: brake oilcan 63, electronic brake booster 64 and EPB73, wherein, the braking system 90 of drive-by-wire chassis 100 divide into service brake and emergency braking, service brake adopts IBS64 as the power source, receive whole car signal through IBSECCU 65, realize unmanned control braking, adopt hydraulic pressure helping hand and carry out the braking through stopper 91, brake oilcan 63 arranges crossbeam 14 in the front portion of frame 10, the filling of being convenient for, emergency brake and parking braking adopt EPB73, EPB73 arranges in rear axle assembly 22 middle part, integrate at the motor output, receive whole car signal through EPB controller 74, realize redundant braking, improve unmanned vehicle security. The form of the brake 91 of the present embodiment is not limited to a disc brake and a drum brake.
The battery assembly 40 of the drive-by-wire chassis 100 comprises a battery compartment 41, and a power battery 42, a vehicle control unit 43, a charging interface 44, a fuse box 46 and two storage batteries 45 which are arranged in the battery compartment 41. The battery compartment 41 is arranged between the front axle assembly 21 and the rear axle assembly 22, so that the weight of the power battery 42 is uniformly distributed to the front axle 211 and the rear axle 221, the loads of the front axle 211 and the rear axle 221 of the drive-by-wire chassis 100 are ensured to meet the design requirements, and the front part of the frame 10 and the rear part of the frame 10 are used for arranging the chassis 100 and other parts related to new energy sources and are matched with exterior mounting points.
The battery compartment 41 is of a frame structure and is arranged between the front axle assembly 21 and the rear axle assembly 22, so that components in the battery compartment 41 are in a relatively closed environment, the battery compartment 41 respectively arranges the storage battery 45 and the fuse box 46 of the low-voltage part and the power battery 42, the vehicle control unit 43 and the charging port of the high-voltage part on the left side and the right side in the battery compartment 41, the high-voltage system and the low-voltage system are separately arranged, and the vehicle safety and the personnel operability are improved.
Preferably, the power battery 42 is a single battery, the slide rail 47 and the locking mechanism 48 are installed on the bottom side of the frame of the battery compartment 41, the power battery 42 is installed on the battery compartment 41 through the slide rail 47 and the locking mechanism 48, fixing and quick replacement of the power battery 42 are achieved, the quick replacement function of the power battery 42 prolongs the driving range and the service life of the vehicle, and the operation cost of a customer is further reduced. The number of the batteries is not limited to the above, and can be adjusted according to the vehicle endurance requirement.
The motor controller 51 and the DC/DC converter 52 of the drive-by-wire chassis 100 are disposed between the power battery 42 and the driving motor 50, thereby optimizing the length of the high-voltage wire harness, ensuring the compactness of the high-voltage system, and reducing the influence of EMC on the components of the entire vehicle.
According to the drive-by-wire chassis 100 of the logistics vehicle in the embodiment, the storage battery 45, the fuse box 46, the power battery 42 and the vehicle controller 43 are arranged in the battery compartment 41, the high-voltage system and the low-voltage system are separately arranged, the safety and the maneuverability of the vehicle are improved, the power battery 42 adopts one battery, the mounting device is designed to be a detachable structure, the sliding rail 47 and the locking mechanism 48 are mounted on the bottom side of the frame of the battery compartment 41, the fixing and the quick changing of the power battery 42 are realized, the driving range and the service life of the vehicle are prolonged through the quick changing function of the power battery 42, and the operation cost of a customer is further reduced.
According to the commodity circulation car of this embodiment, through setting up unmanned autopilot, the commonality, the platformization, low-speed, pure electronic commodity circulation vehicle chassis 100, can be through carrying packing box express delivery cabinet and autopilot system according to customer's demand, realize automatic unmanned commodity circulation delivery car, be used for solving the delivery of short distance terminal one kilometer, the delivery demand is big, the problem that human cost is high, have energy-conservation, the environmental protection, low noise, advantages such as use cost is cheap, can be according to customer's demand through carrying packing box express delivery cabinet and autopilot system, realize automatic unmanned commodity circulation delivery car.
According to the commodity circulation car of this embodiment, applicable in the better closed or semi-closed terminal commodity circulation scene of road conditions, like community, market, industrial park, school and scenic spot etc. have the feature of environmental protection height, low noise, unmanned etc..
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 utility model. In this specification, 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.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A logistics vehicle chassis is characterized by comprising:
a frame extending in a fore-and-aft direction;
the front axle assembly is connected to the front end of the frame, and the rear axle assembly is connected to the rear end of the frame;
a suspension system including a front suspension and a rear suspension, the front axle assembly being connected to the frame front end by the front suspension, the rear axle assembly being connected to the frame rear end by the rear suspension;
the battery assembly comprises a battery bin and a battery component arranged in the battery bin, and the battery bin is arranged on the frame and is positioned between the front axle assembly and the rear axle assembly;
the driving motor is arranged at the rear end of the frame.
2. The logistics vehicle chassis of claim 1, wherein the battery assembly comprises: the high-voltage power supply portion with low-voltage power supply portion interval arrangement in the battery compartment, high-voltage power supply portion includes power battery, vehicle control unit and/or the interface that charges, low-voltage power supply portion includes battery and/or fuse box.
3. The logistics vehicle chassis of claim 1, further comprising: the motor controller and the DC/DC converter are arranged between the battery bin and the driving motor.
4. The logistics vehicle chassis of claim 1, wherein the frame comprises a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam extend in the front-back direction and are arranged at intervals in the left-right direction, and the battery compartment is fixed on the first longitudinal beam and the second longitudinal beam and is positioned on the lower sides of the first longitudinal beam and the second longitudinal beam.
5. The logistics vehicle chassis of claim 4, wherein the first longitudinal beam and the second longitudinal beam are provided with a plurality of positioning frames which are arranged at intervals, the positioning frames extend upwards along the vertical direction, positioning pins and/or mounting holes are formed in the positioning frames, and a compartment of the logistics vehicle is fixed and supported on the first longitudinal beam and the second longitudinal beam through the positioning frames.
6. The logistics vehicle chassis of claim 1, wherein the battery assembly comprises one or more power batteries, a slide rail is arranged in the battery compartment, and the power batteries are slidably arranged on the slide rail between the working position and the replacement position.
7. The logistics vehicle chassis of claim 6, wherein a locking mechanism is arranged in the battery compartment, and when the power battery is located at the working position, the locking mechanism is used for locking the power battery at the working position.
8. The logistics vehicle chassis of any one of claims 1-7, further comprising:
the steering mechanism, the brake oil can and the electronic brake booster are all arranged at the front end of the frame; and/or
The speed reducer and the EPB are arranged at the rear end of the frame, and the speed reducer is connected with the driving motor.
9. The logistics vehicle chassis of any one of claims 1-7, further comprising: the front contact edge assembly is arranged on the front side of the frame, and the rear contact edge assembly is arranged on the rear side of the frame.
10. A logistics vehicle, characterized by comprising a carriage and a logistics vehicle chassis according to any one of claims 1-9, wherein the carriage is supported by the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123213596.8U CN216580087U (en) | 2021-12-20 | 2021-12-20 | Logistics vehicle chassis and logistics vehicle with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123213596.8U CN216580087U (en) | 2021-12-20 | 2021-12-20 | Logistics vehicle chassis and logistics vehicle with same |
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| CN216580087U true CN216580087U (en) | 2022-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320711A (en) * | 2022-08-22 | 2022-11-11 | 开沃新能源汽车集团股份有限公司 | Pure electric wire control chassis |
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2021
- 2021-12-20 CN CN202123213596.8U patent/CN216580087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320711A (en) * | 2022-08-22 | 2022-11-11 | 开沃新能源汽车集团股份有限公司 | Pure electric wire control chassis |
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