CN115872326B

CN115872326B - Vehicle for freight loading

Info

Publication number: CN115872326B
Application number: CN202310052731.XA
Authority: CN
Inventors: 林杰城; 蔡星枝; 余协; 吴长庚; 林嘉楠
Original assignee: Xiamen Aerospace Siert Robot System Co Ltd
Current assignee: Xiamen Aerospace Siert Robot System Co Ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-05-09
Anticipated expiration: 2043-02-03
Also published as: CN115872326A

Abstract

The invention provides a vehicle for freight loading, comprising a chassis and a cockpit; two sides of the chassis extend backwards to form two supporting arms, each supporting arm comprises a fixed section and a movable section, a first movable frame is arranged on each fixed section, and each first movable frame is driven by a first driving device to ascend or descend relative to each fixed section; the second moving frame is arranged on the moving section and driven by a second driving device to ascend or descend relative to the moving section; when the transport object with the obstacle needs to be carried, the two support arm openings of the vehicle move towards the obstacle until the obstacle is located in the fixed section area, the second moving frame supports the transport object and moves upwards to a position higher than the obstacle relative to the moving section under the driving of the second driving device, and the vehicle is controlled by a cab to carry out transfer so as to move the transport object out of the original position. The support arm is more flexibly applied to various environments, loading and transporting of the transport object can be effectively implemented, and logistics implementation in a factory building and a park can be remarkably improved.

Description

Vehicle for freight loading

Technical Field

The invention relates to the technical field of freight vehicles, in particular to a vehicle for freight loading.

Background

Based on the ideas of factory intellectualization and logistics automation and the idea of JIT on-time accurate benefit logistics, the loading and distribution of materials are carried out by adopting a centralized batching and on-time conveying mode. At present, the loading and distribution of materials generally adopts a manual driving transport vehicle to replace a manual forklift for carrying, so that factory material loading and logistics automation are realized, and the purposes of reducing cost and improving production efficiency are achieved.

In the prior art, particularly in an industrial park, for conveying and loading some materials with disordered stacking and various quantities, the manual forklift is used for conveying and loading the materials more flexibly, but the manual forklift obviously wastes manpower and material resources, and the freight loading cost is high, resources are seriously wasted and the utilization rate is poor. The forklift loading is automatically carried out by adopting the manual driving vehicle, so that the energy consumption for carrying can be greatly saved, but when the automatic transportation is used, the automatic forklift loading device needs to be arranged in a regular and reasonable material layout, if the situation of obstacles exists, and the like, the rapid and flexible loading of the target object is difficult, and the efficient transfer is realized when the vehicle is in freight. Moreover, the forklift structure is complex in supporting operation, low in effective utilization rate, easy to limit loading in structural design, and difficult to flexibly and efficiently realize freight loading.

Therefore, the manual transportation mode is abandoned to the historic long river, and the prior art also generally adopts the manual forklift to realize the transportation of raw materials, and along with the rising of labor cost and the limitation of some obstacle environments, the manual forklift transportation mode is not suitable for the reasonable use category of various factories.

Disclosure of Invention

In view of the above, the present invention aims to provide a vehicle for freight loading, which aims to solve the problem that flexible freight loading is difficult to implement on objects with obstacles in a park.

The invention adopts the following scheme:

the present application provides a vehicle for freight loading adapted for use in a campus to cross an obstacle to load a desired transporter; the vehicle comprises a chassis and a cockpit arranged on the chassis, wherein the cockpit is used for controlling the chassis to freely move; the two sides of the chassis extend backwards to form two supporting arms, each supporting arm comprises a fixed section and a movable section, a first movable frame is arranged on each fixed section, and each first movable frame is driven by a first driving device to ascend or descend relative to each fixed section; the second moving frame is driven by a second driving device to ascend or descend relative to the moving section; when a transport object provided with an obstacle needs to be carried, the two support arm openings of the vehicle move against the obstacle until the obstacle is positioned in the fixed section area, the second moving frame supports the transport object and moves upwards to a position higher than the obstacle relative to the moving section under the driving of the second driving device, and the vehicle is controlled by a cab to move so as to move the transport object out of the original position.

As a further refinement, the moving section is movable relative to the fixed section towards the transporter so that the second moving rack supports the transporter to move it out of the original position.

As a further improvement, the fixed section pushes the movable section to realize expansion and contraction through a driving device of a gear rack.

As a further improvement, wheels are arranged on the moving section, supporting parts are arranged on the second moving frame, and the supporting parts are symmetrically distributed on the second moving frame by taking the circle centers of the wheels as central lines.

As a further improvement, the second moving frame is provided with a relatively telescopic supporting arm for supporting the transport objects with different sizes, and the supporting part is arranged on the supporting arm.

As a further improvement, the second moving frame is provided with a detection device for detecting the transport object so as to calculate the telescopic distance of the supporting arm.

As a further improvement, the first movable frame comprises a frame body, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod rotate around the intersecting central positions of the first connecting rod and the second connecting rod, the fixed end of the first connecting rod is hinged with the frame body of the movable frame, and the fixed end of the second connecting rod is hinged with the fixed section.

As a further improvement, the fixed section and the frame body are provided with guide rails, the movable end of the first connecting rod is arranged on the guide rails of the fixed section, and the movable end of the second connecting rod is arranged on the guide rails of the frame body.

As a further improvement, the first driving device is a hydraulic driving device, one end of the first driving device is arranged on the moving end of the first connecting rod to move relative to the guide rail, and the other end of the first driving device is hinged to the center position.

As a further improvement, a driving rod is arranged between the first driving device and the central positions of the two connecting rods, and the end part of the driving rod is hinged with one end of the first driving device.

By adopting the technical scheme, the invention can obtain the following technical effects:

according to the vehicle for freight loading, the supporting arms are formed by extending backwards on two sides of the chassis and are configured into the fixed section and the movable section, and the fixed section and the movable section are respectively provided with the movable frames for ascending or descending and are used for carrying out freight loading on different transships respectively. Especially, when the transport thing that is equipped with the barrier needs to be carried, the vehicle is through two support arm openings to the barrier removal until the barrier dodges the holding and in the region that the fixed section formed, load through moving section and moving frame and counterpoint matched operation thing after this moment and support, until after moving section and being higher than the barrier removal, drive the vehicle walking through the cockpit, correspondingly shift out its original position with the operation thing for the support arm is more nimble to be used in all kinds of environment, the effectual loading and transportation to the transport thing of implementing, can show promotion factory building, the commodity circulation implementation in the garden. And moreover, the occupied area of a factory building and a park can be effectively reduced, and the occupied area is highly matched with freight loading in an area.

Drawings

FIG. 1 is a schematic structural view of a vehicle for freight loading in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the relative telescoping movement of the moving and stationary sections of a support arm for a freight loaded vehicle according to an embodiment of the present invention;

FIG. 4 is a schematic view of a vehicle for freight loading according to an embodiment of the present invention from another perspective;

FIG. 5 is a schematic illustration of the relative telescoping movement of a support arm of a vehicle for cargo loading according to an embodiment of the present invention;

FIG. 6 is an application scenario diagram of a vehicle for cargo loading according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of two mobile racks of a vehicle for freight loading according to an embodiment of the present invention;

FIG. 8 is a schematic view of the second movable frame of FIG. 7 after the second movable frame is hidden;

FIG. 9 is a factory floor plan of a vehicle for shipping loads in accordance with an embodiment of the invention;

FIG. 10 is a human-machine interface of a vehicle for cargo loading in accordance with an embodiment of the present invention;

FIG. 11 is a key and graphic schematic illustration of a smart meter for a freight loaded vehicle according to an embodiment of the invention;

FIG. 12 is a table of tractor parameters for a freight loaded vehicle according to an embodiment of the invention;

fig. 13 is a flow diagram of an unmanned system for a cargo-loaded vehicle according to an embodiment of the invention.

Icon: 1-a chassis; 2-cockpit; 3-a support arm; 4-fixing the section; 5-moving the segment; 6-a first moving rack; 7-a second moving frame; 8-wheels; 9-a support; 10-a support arm; 11-a frame body; 12-a first link; 13-a second link; 14-a hydraulic drive; 15-a driving rod; a-an obstacle; b-transporter.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

Examples

In connection with fig. 1-13, the present embodiment provides a vehicle for freight loading suitable for use in a campus to load a desired transporter B across an obstacle. The vehicle comprises a chassis 1 and a cab 2 arranged on the chassis 1, wherein the cab 2 is used for controlling the chassis 1 to freely move and rotate. The two sides of the chassis 1 extend backwards to form two supporting arms 3, each supporting arm 3 comprises a fixed section 4 and a movable section 5, a first movable frame 6 is arranged on each fixed section 4, and each first movable frame 6 is driven by a first driving device to ascend or descend relative to each fixed section 4. The moving section 5 is provided with a second moving frame 7, and the second moving frame 7 is driven by a second driving device to ascend or descend relative to the moving section 5. When the transport object B provided with the obstacle A needs to be carried, the two support arms 3 of the vehicle move towards the obstacle A until the obstacle A is positioned in the area of the fixed section 4, the second moving frame 7 supports the transport object B and moves upwards to a position higher than the obstacle A relative to the moving section 5 under the drive of the second driving device, and the vehicle is controlled by the cab 2 to move so as to move the transport object B out of the original position.

The vehicle is characterized in that the supporting arms 3 are formed by extending backwards on two sides of the chassis 1, the supporting arms 3 are configured into a fixed section 4 and a movable section 5, and the fixed section 4 and the movable section 5 are respectively provided with a movable frame for ascending or descending so as to respectively implement freight loading on different transshipment objects B. Especially, when the transport object B provided with the obstacle A needs to be carried, the vehicle moves towards the obstacle A through the openings of the two support arms 3 until the obstacle A is avoided and accommodated in the area formed by the fixed section 4, at the moment, the moving section 5 and the moving frame thereof are used for carrying and supporting the transport object after being matched with the alignment, until the moving section 5 moves to be higher than the obstacle A, the vehicle is driven to walk through the cockpit 2, the transport object is correspondingly moved out of the original position, the support arms 3 are more flexibly circulated and applied to various environments, loading and transportation of the transport object B are effectively implemented, and logistics implementation in a factory building and a park can be remarkably improved.

The vehicle for freight loading in the present embodiment is specifically a vehicle suitable for freight or transportation, loading or containing a particular cargo or object. The bottom plate and the two support arms 3 thereof are mutually configured into a U-shaped forklift member, the two support arms 3 horizontally extend and face each other to form an opening between the two support arms, and the size of the opening is always larger than that of the obstacle A, so that the obstacle A can be conveniently moved in and out along the opening direction. Each support arm 3 is composed of a fixed section 4 located on the inner side and a movable section 5 located on the outer side, and both sections are provided with a respective movable frame and a driving device thereof, and the lifting or lowering of the movable frame is correspondingly regulated by the respective driving device.

When the transport object B provided with the obstacle a needs to be carried, the moving section 5 can independently implement the loading limit and the freight transfer of the second moving frame 7 to the transport object B relative to the fixed sections 4, at this time, the obstacle a enters into the space between the two fixed sections 4 along the opening, and the first moving frame 6 on the fixed sections 4 does not implement the loading and transferring work to the obstacle a.

When the transfer object B without the obstacle A needs to be carried, the transfer object B can be directly subjected to loading limit and freight transfer through the moving section 5 and the second moving frame 7 thereof. For one transport object B with a larger length, the loading limit and the freight transfer of the transport object B into the opening and the space thereof can be performed synchronously by the cooperation of the movable section 5 and the second movable frame 7 thereof and the fixed section 4 and the first movable frame 6 thereof.

As shown in fig. 1 to 3, in the present embodiment, the moving section 5 is movable toward the transporter B with respect to the fixed section 4 so that the second moving frame 7 supports the transporter B to move it out of its original position. The moving section 5 can movably adjust the loading position of the moving section and the transport object B relative to the fixed section 4, so that the moving section can cope with various carrying environments, is not limited by the placement position between the transport object B and the obstacle a, and is greatly matched with the working environment which can only enter and exit the two support arms 3 along the obstacle a, so that the transport object B can be loaded flexibly and efficiently. Particularly, after the movable section 5 is movably extended and the loading of the transport object B is completed, the movable section 5 is reset to the initial position between the movable section 5 and the fixed section 4, then the whole vehicle is transferred, the distance between the transport object B and the obstacle A is larger than the stroke of the movable section 5 and the fixed section 4, the problems of collision and interference are avoided, after the movable section 5 and the fixed section 4 are positioned at the initial position, the chassis 1 and the supporting arm 3 are controlled to be transferred through the cab 2, and the stability and the safety of the cargo transportation of the transport object can be obviously improved.

In a preferred embodiment, the fixed segment 4 is pushed by a rack and pinion drive (not shown) to extend and retract the movable segment 5. The gear and the rack are respectively arranged on the fixed section 4 and the movable section 5, and the movable section 5 is correspondingly pushed to stretch and retract through the power output of the gear or the rack. In addition, it is obvious that the fixed section 4 and the movable section 5 are in sliding fit, and can be in male-female plug-in connection in relative sliding fit, so that the rigidity of the whole support arm 3 in the working process is improved.

In other embodiments, the driving device for driving the moving section 5 to move relatively is configured as a cylinder, a push rod, a motor, etc., and can also realize that the moving section 5 is pushed to move and reset relatively to the fixed section 4.

As shown in fig. 4 to 6, in the present embodiment, wheels 8 are provided on the moving section 5, and supporting portions 9 are provided on the second moving frame 7, and the supporting portions 9 are symmetrically distributed on the second moving frame 7 with the center of the wheels 8 as the center line. In one aspect, the supporting portion 9 is used for defining the loading position of the transporter B on the second moving frame 7, so that the lifting position of the transporter B on the second moving frame 7 can be quickly positioned, and the loading operation can be accurately and efficiently performed. On the other hand, the bottom surface of the moving section 5 is provided with wheels 8 for transferring and rolling, the top surface of the moving section is correspondingly provided with a second moving frame 7, and two supporting parts 9 are symmetrically distributed on the front side and the rear side of the second moving frame 7 by taking the wheels 8 as the center, so that the gravity of a transport object B positioned and loaded on the supporting parts 9 can be uniformly distributed and concentrated on the wheels 8, the torsion at the joint of the moving section 5 and the fixed section 4 can be obviously reduced, and the stable freight after the transport object B is loaded is further promoted.

Further, the second moving frame 7 is provided with a relatively telescopic supporting arm 10 for supporting the transport objects B with different sizes, and the supporting portion 9 is disposed on the supporting arm 10. Specifically, the supporting arm 10 is telescopically and movably configured in the inner side direction of the moving section 5 (specifically configured in the inner side of the frame 11 below), correspondingly when the transport object B is accommodated in the space of the two moving sections 5, the supporting arm 10 is controlled to extend and move to be combined with the transport object B to limit, and the supporting portion 9 on the supporting arm 10 can be supported by lifting with the transport object B, so that the compatibility of the moving sections 5 to various transport objects B with different sizes is greatly improved through the telescopic arrangement of the supporting arm 10, and the supporting arm is suitable for centering the transport object B on the two moving sections 5, particularly, the supporting portion 9 of the two supporting arms 10 is accurately arranged, so that the loading effect is remarkably improved.

In the present embodiment, a detection device (not shown) for detecting the transporter B is provided on the second moving frame 7 to calculate the telescopic distance of the support arm 10. The detection device comprises a distance sensor, wherein the distance sensor is arranged on one side of the supporting arm 10 and is used for accurately monitoring the direct distance between the supporting arm 10 and the transport object B and further feeding back to the cab 2.

As shown in fig. 6, 7 and 8, in the present embodiment, the first movable frame 6 includes a frame body 11, a first link 12 and a second link 13, the first link 12 and the second link 13 rotate around a center position where they intersect, a fixed end of the first link 12 is hinged to the frame body 11 of the movable frame, and a fixed end of the second link 13 is hinged to the fixed section 4. Wherein, the fixed section 4 and the frame 11 are provided with guide rails, the movable end of the first connecting rod 12 is arranged on the guide rails of the fixed section 4, and the movable end of the second connecting rod 13 is arranged on the guide rails of the frame 11. Thus, the first link 12 and the second link 13 are hinged to each other in an X-shaped structure, and cooperate with the frame 11 disposed on the two links to form a lifting platform.

In this embodiment, the first driving device is a hydraulic driving device 14, one end of the first driving device is disposed on the moving end of the first connecting rod 12 to move relative to the guide rail, and the other end of the first driving device is hinged on the center position. Wherein, be equipped with actuating lever 15 between the central point of first drive arrangement and two connecting rods, the tip of actuating lever 15 is articulated with one end of first drive arrangement. One end of the first driving device is hinged with the movable end of the first connecting rod 12, the other end of the first driving device is hinged with the driving rod 15, and one end of the driving rod 15 is hinged at the center position of the two connecting rods, so that the power output by the first driving device is transmitted to the first connecting rod 12 and the second connecting rod 13 through the driving rod 15 in a multi-connecting rod transmission mode, and the lifting platform is correspondingly controlled to ascend or descend.

It should be noted that the structural configuration of the second movable frame 7 may refer to the corresponding content of the first movable frame 6 in the foregoing, and will not be described herein. And the two movable frames are separately arranged, so that the operation can be flexibly and correspondingly realized according to the working requirements.

As shown in fig. 9, a factory floor plan is provided. At least three vehicles for freight loading are arranged in the same park, and the vehicle is suitable for loading, transporting and transferring materials (transshipment B) of each factory building in the park. The lifting height of the movable frame on the supporting arm 3 can meet various loading platform heights, the highest ground-leaving height of the loading platform is 1.0 meter, the lowest ground-leaving height of the loading platform is 0 meter, and factors such as a topography slope and the like also need to be considered. The driver cab 2 is driven manually to transport materials, a WMS system is utilized to distribute work tasks, and the materials are conveyed and distributed manually according to task signboards. In other embodiments, the cockpit 2 may be configured to be unmanned, such as an AGV, for more intelligent logistics transportation.

In this embodiment, the driver's cabin 2 is configured as a tractor, and two rearview mirrors are mounted on the tractor, so that a driver can better observe the surrounding environment during driving, and pedestrians or public facilities are prevented from being accidentally bumped. Radar monitors are installed on the front side (the front side of the chassis 1) and the rear side (the rear side of the supporting arm 3) of the tractor, so that safety protection can be carried out on surrounding pedestrians and facilities under the condition of advancing and retreating due to visual dead angles. Because the tractor backs a car and gets into the loading platform, need dodge with barrier A and transport thing B, in order to prevent that the tractor from bumping with it, so the bottom installation image of backing a car of tractor, the driver can be on the display screen in the cockpit 2 clear see the relative position of automobile body and material, plays the effect of safety protection and be convenient for the adjustment. Because the road surface environment is relatively complex, the impact force on the tractor caused by the dead weight of the load and the like in the transportation process is provided for the uphill and downhill, the small-ditch road surface and the load, the stability and the reliability are ensured, and the maximum tonnage of the tractor is 4.5 tons. This tractor reservation has unmanned AGV intelligence to upgrade the space of transformation, not only can go on through the manual driving mode, also can reform transform into unmanned modes such as unmanned AGV transport vechicle according to the user demand follow-up.

It should be noted that, as shown in fig. 10, the tractor has a friendly man-machine interaction interface for displaying operation steps, working states, fault information and the like, and the vehicle-mounted controller software and hardware have the self-detection, self-diagnosis and self-protection capabilities of the system, have an intelligent electric quantity detection function, and automatically send out a charging alarm when the electric quantity is insufficient. As shown in fig. 11, the key and graphic illustration of the specific intelligent meter are provided for the convenience of user operation.

As shown in fig. 12, various parameters of the tractor, such as characteristics, weight, size, and performance, are provided for the tractor.

The power supply system provided with the tractor realizes the maximum use efficiency of the vehicle on the premise of meeting the production takt requirement, adopts a manual charging mode, and stops the transportation task when the electric quantity is low (limited to be lower than 20% of the total capacity), and manually drives the tractor to return to a charging point for charging. In addition, the battery compartment in the tractor keeps good ventilation, the ambient temperature in the charging and discharging process is kept between minus 15 ℃ and 50 ℃, other heating units are prevented from being arranged near the installation position of the battery of the power supply system, the battery is placed at the lowest position of the vehicle or on the vehicle frame so as to prevent unnecessary battery temperature from rising, avoid terminal short circuit, avoid exposing to open fire, and store the battery at a cool and dry position. If the battery is stored for a long time, the battery is charged and discharged once every 6 months.

Wherein, the driving system that the tractor was equipped with, its link structure is connected through guide rail or gyro wheel with support arm 3, and the terminal surface of support arm 3 plays the guide effect, and link structure and hydraulic drive device 14 linkage set up, drive the movable frame lift activity correspondingly. And the supporting arm 3 is provided with a driving device and other power elements for pushing the moving section 5 to move and reset relative to the fixed section 4. In addition, fork truck structure that two support arms 3 formed wholly adopts high strength steel welding, and complete machine baking finish handles, and the drive wheel that is located cockpit 2 and the wheel 8 that is located on support arm 3 are the rubber material, fine adaptation outdoor road surface uses. Moreover, the electronic steering mechanism is adopted, so that driving is easy and labor-saving, the battery is designed in a side-pull mode, maintenance is better, the quality of all core components is reliable, and the AGV is modified conveniently.

As shown in fig. 10 and 11, the vehicle is equipped with an intelligent instrument based on a CAN-BUS, and the instrument CAN monitor the performance of the whole vehicle in real time through the BUS. The method comprises the following steps:

1) When the electric quantity of the battery is reduced, the instrument continuously extinguishes the LED backlight lamp on the instrument by a specific algorithm, so that the residual electric quantity of the battery is displayed to achieve the purpose of checking the electric quantity.

2) Because SMART-DISPLAY is an intelligent instrument based on the CAN-BUS BUS, data sharing CAN be realized between the intelligent instrument and the controller, and the instrument CAN DISPLAY the vehicle running state information such as the angle, running speed and the like of the guide wheel.

3) The entire bus system may be monitored and when a node in the bus fails, the meter will be displayed as a fault code to the meter while the vehicle is stopped until the fault is cleared.

As shown in fig. 13, the vehicle has an unmanned system adapted for use with a freight loaded vehicle, comprising the steps of:

s1: the system sends out a required signal, and the system performs composition and modeling according to the park environment;

s2: GPS positioning is carried out on the vehicle so as to plan a transport path suitable for freight transportation, an optimal route is correspondingly selected to a user terminal, and navigation is generated for the cockpit 2 so as to automatically drive to a loading and unloading point;

s3: carrying out loading of the transport object B, namely opening the support arm 3 towards the obstacle A until the obstacle A is centrally positioned in a space formed by the area of the fixed section 4, controlling the moving section 5 to move towards the transport object B, accurately positioning the support arm 10 and the support part 9 thereof on the moving section 5 and the transport object B, and mutually jointing and limiting;

s4: acquiring and calculating contour deviations of the supporting arm 3, the obstacle A and the running object, adaptively guiding the supporting arm 3 to load the transport object B, and finishing the loading process;

s5: the second driving device drives the second moving frame 7 to lift the transporter B to move upwards to a position higher than the obstacle A (the first state in fig. 13 at the moment), so that the transporter B is moved out of the original position;

s6: the vehicle is controlled to move to the unloading point to unload the transport object B, the line is drawn on the ground at the unloading point, the vehicle can automatically obtain and calculate the space deviation correspondingly according to the distance between the line and the vehicle body, and the vehicle is adaptively guided to enter the supporting arm 3 to unload the transport object B (in the second state in fig. 13 at this time), so that the unloading process is completed.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A vehicle for freight loading adapted for use in a campus to cross an obstacle to load a desired transporter; the vehicle comprises a chassis and a cockpit arranged on the chassis, wherein the cockpit is used for controlling the chassis to freely move; the chassis is characterized in that two sides of the chassis extend backwards to form two supporting arms, each supporting arm comprises a fixed section and a movable section, a first movable frame is arranged on each fixed section, and the first movable frames are driven by a first driving device to ascend or descend relative to the fixed sections; the second moving frame is driven by a second driving device to ascend or descend relative to the moving section;

when a transport object provided with an obstacle needs to be carried, the two support arm openings of the vehicle move against the obstacle until the obstacle is positioned in the fixed section area, the second moving frame supports the transport object and moves upwards to a position higher than the obstacle relative to the moving section under the driving of the second driving device, and the vehicle is controlled by a cab to move so as to move the transport object out of the original position;

wherein the moving section is movable relative to the fixed section towards the transporter to cause the second moving rack to support the transporter to move it out of the home position;

the second moving frame is provided with a supporting part, and the supporting parts are symmetrically distributed on the second moving frame by taking the circle center of the wheels as a central line;

and the second movable frame is provided with a relatively telescopic bearing arm so as to support the transport objects with different sizes, and the supporting part is arranged on the bearing arm.

2. A vehicle for freight loading according to claim 1, wherein the stationary segment is configured to extend and retract by pushing the movable segment through a rack and pinion drive.

3. A vehicle for freight loading according to claim 1, wherein the second movable frame is provided with a detection device for detecting the transporter, so as to calculate the telescopic distance of the support arm.

4. A vehicle for freight loading according to any one of claims 1 to 3, wherein the first movable frame includes a frame body, a first link and a second link, the first link and the second link being rotated about a central position where they intersect, a fixed end of the first link being hinged to the frame body of the movable frame, and a fixed end of the second link being hinged to the fixed section.

5. The vehicle for cargo loading of claim 4, wherein the stationary segment and the frame are provided with guide rails, the movable end of the first link is disposed on the guide rails of the stationary segment, and the movable end of the second link is disposed on the guide rails of the frame.

6. A vehicle for freight loading as defined in claim 5, wherein the first drive means is a hydraulic drive means, one end of the first drive means being provided on the moving end of the first link for movement relative to the rail, the other end of the first drive means being hinged to a central location.

7. A vehicle for freight loading according to claim 6, wherein a drive rod is provided between the first drive means and a central location of the two links, the end of the drive rod being hinged to one end of the first drive means.