CN115872326A

CN115872326A - Vehicle for freight loading

Info

Publication number: CN115872326A
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: 2023-03-31
Anticipated expiration: 2043-02-03
Also published as: CN115872326B

Abstract

The invention provides a vehicle for freight loading, which comprises a chassis and a cab; 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 frame is driven by a first driving device to ascend or descend relative to the fixed sections; 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 transfer object provided with the barrier needs to be carried, the openings of the two supporting arms of the vehicle move opposite to the barrier until the barrier is located in the area of the fixed section, the second moving frame supports the transfer object and moves upwards to a position higher than the barrier relative to the moving section under the driving of the second driving device, and the vehicle is controlled by the cockpit to transfer so as to move the transfer object out of the original position. Have enough to meet the need more in a flexible way through the support arm and be applied to all kinds of environment, the effectual implementation is to the loading transportation of conveyer, can show the commodity circulation implementation that promotes in factory building, the garden.

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, logistics automation and the JIT punctual lean logistics concept, the method adopts a centralized batching and punctual conveying mode to carry out loading and distribution of materials. At the present stage, the loading and distribution of the materials generally adopt a manual driving transport vehicle to replace a manual forklift to carry, so that the loading of the materials in a factory and the automation of logistics are realized, and the purposes of reducing the cost and improving the production efficiency are achieved.

In the prior art, especially in an industrial park, when transporting and loading some disorderly stacked and various materials, the manual forklift is used for transporting and loading the materials more flexibly, but in this way, manpower and material resources are obviously wasted, the cost of freight loading is expensive, resources are seriously wasted, and the utilization rate is poor. And adopt manual drive vehicle to carry out fork truck automatically and load, though can save the transport power consumption greatly, when using automatic transport, its material layout that needs comparatively regular, reasonable is placed, if has the circumstances such as barrier, hardly carries out quick, nimble loading to the target object, more do not do so luxuriously realize high-efficient the transfer when vehicle goods are transported. Moreover, the supporting operation of the forklift structure is complex, the effective utilization rate is low, the loading is often easily limited in structural design, and the flexible and efficient freight loading is difficult to realize.

Therefore, the manual transportation mode is abandoned in the historical long river, the transportation of the raw materials is generally realized by adopting the manual forklift in the prior art, and the transportation mode of the manual forklift is not suitable for the reasonable use range of various factories along with the rise of labor cost and the limitation of some obstacle environments.

Disclosure of Invention

In view of the above, the present invention aims to provide a vehicle for loading freight, which aims to solve the problem that flexible loading freight is difficult to be carried out on a target object with an obstacle in a campus.

The invention adopts the following scheme:

the application provides a vehicle for freight loading, which is suitable for crossing obstacles in a park to load required transporters; the vehicle comprises a chassis and a cab arranged on the chassis, wherein the cab is used for controlling the chassis to freely move; two sides of the base plate extend backwards to form two supporting arms, each supporting arm comprises a fixed section and a moving section, a first moving frame is arranged on the fixed section, and the first moving frame is driven by a first driving device to ascend or descend relative to the fixed section; the moving section is provided with a second moving frame which is driven by a second driving device to ascend or descend relative to the moving section; when the transport object provided with the obstacle needs to be carried, the openings of the two support arms of the vehicle face the obstacle to move until the obstacle is located in the area of the fixed section, 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 the cab to move so as to move the transport object out of the original position.

As a further improvement, the moving section is movable relative to the fixed section toward the transporter to cause the second moving rack to support the transporter for movement out of the original position.

As a further improvement, the fixed section pushes the moving section to stretch and contract through a driving device of a gear rack.

As a further improvement, the moving section is provided with wheels, the second moving frame is provided with supporting parts, and the supporting parts are symmetrically distributed on the second moving frame by taking the circle center of the wheels as a center line.

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

As a further improvement, a detection device for detecting the transported object is arranged on the second movable frame 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 crossed center 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, guide rails are arranged on the fixed section and the frame body, the moving end of the first connecting rod is arranged on the guide rail of the fixed section, and the moving end of the second connecting rod is arranged on the guide rail 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 central 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:

the vehicle for freight loading is characterized in that the supporting arms are formed by extending backwards on two sides of the chassis and are configured into a fixed section and a movable section, and the fixed section and the movable section are respectively associated with a movable frame for ascending or descending and are used for respectively carrying out freight loading on different transporters. Especially, when the transport object that is equipped with the barrier needs to be carried, the vehicle moves until the barrier dodges the holding in the region that the fixed segment formed through two bracing arm openings to the barrier, load through moving section and removal frame and the operation thing after counterpoint cooperation this moment and support, move the section and remove to be higher than the barrier after, drive the vehicle through the cockpit and walk, it shifts out its original position to correspond the operation thing, make the bracing arm more nimble have enough to meet the need and be applied to in all kinds of environments, effectual implementation is to the loading transportation of transport thing, can show the commodity circulation implementation in promotion factory building, the garden. In addition, the occupied areas of a factory building and a park can be effectively reduced, and the height of the occupied areas is matched with the freight loading in the area.

Drawings

FIG. 1 is a schematic illustration 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 diagram of the telescopic movement of the mobile section relative to the fixed section of the support arm for a freight carrying vehicle in accordance with an embodiment of the present invention;

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

figure 5 is a schematic illustration of the relative telescoping action of the bolster arms of the truck loading vehicle according to an embodiment of the present invention;

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

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

FIG. 8 is a schematic structural view of the second movable rack shown in FIG. 7 after being hidden;

FIG. 9 is a factory floor layout for a cargo-carrying vehicle in accordance with an embodiment of the present invention;

FIG. 10 is a human-machine interface for a cargo-carrying vehicle according to an embodiment of the present invention;

FIG. 11 is a key and graphical schematic of an intelligent meter for a freight-carrying vehicle according to an embodiment of the invention;

FIG. 12 is a tractor parameter table for a freight laden vehicle according to an embodiment of the present invention;

fig. 13 is a block flow diagram of an unmanned system for a cargo-carrying vehicle in accordance with an embodiment of the present invention.

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

Detailed Description

In order to make 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 described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, 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, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Examples

With reference to fig. 1 to 13, the present embodiment provides a vehicle for freight loading, which is suitable for loading a required transport object B across obstacles on a park. 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. 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 the corresponding 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 a transport object B provided with an obstacle A needs to be transported, the two supporting arms 3 of the vehicle move towards the obstacle A until the obstacle A is located 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 driving of the second driving device, and the vehicle is controlled by the cockpit 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 backward on both 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, and are used for respectively loading different cargos B. Especially, when a transport object B provided with an obstacle A needs to be transported, the vehicle moves opposite to the obstacle A through the openings of the two support arms 3 until the obstacle A is avoided and accommodated in an area formed by the fixed section 4, the moving section 5 and the moving frame thereof are used for loading and supporting a transport object matched with the moving section in a contraposition mode until the moving section 5 moves to a position 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 used in various environments in a turnover mode, loading and transporting of the transport object B are effectively carried out, 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 special goods or objects. Wherein, the bottom plate and two support arms 3 construct U type fork truck component each other, and two support arms 3 extend the opposition horizontally each other in order to form the opening between the two, and the size of opening will be greater than barrier A's size all the time to do benefit to and pass in and out barrier A along the opening direction. Each support arm 3 is composed of a fixed section 4 located at the inner side and a movable section 5 located at the outer side, the two sections are respectively provided with a corresponding movable frame and a driving device thereof, and the movable frame is correspondingly adjusted to ascend or descend by the respective driving device.

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

When the transport object B without the obstacle A needs to be transported, the transport object B can be directly subjected to loading limitation and freight transfer through the moving section 5 and the second moving frame 7 thereof. When a transfer object B with a larger length size needs to be carried, the loading limit and the freight transfer of the transfer object B entering the opening and the space can be synchronously carried out through the movable section 5 and the second movable frame 7 thereof, and the fixed section 4 and the first movable frame 6 thereof which are cooperatively matched together.

As shown in fig. 1 to 3, in the present embodiment, the moving section 5 can move toward the transporter B relative to the fixed section 4 so that the second moving frame 7 supports the transporter B to move it out of the original position. Wherein, remove section 5 and can be mobilizable for fixed segment 4 adjusts its self and the loading position of transporting thing B to can deal with various transport environment, not be restricted to the position of placing between transporting thing B and the barrier A, very big match in can only follow barrier A in the operation environment of two support arm 3 openings of business turn over, further nimble, efficient loading transporting thing B. Particularly, after the movable section 5 is movably extended and the load of the transporter B is completed, the movable section 5 is reset to move to the initial position of the movable section and the fixed section 4, then the transfer of the whole vehicle is carried out, the distance between the transporter B and the barrier A is larger than the stroke of the relative movement of the movable section 5 and the fixed section 4, the problems of collision and interference are avoided, and 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 transfer through the cockpit 2, so that the stability and the safety of cargo transportation can be obviously improved.

In a preferred embodiment, the fixed section 4 is extended or retracted by pushing the movable section 5 through a rack-and-pinion drive (not shown). The gear and the rack are respectively arranged on the fixed section 4 and the moving section 5, and the moving section 5 is correspondingly pushed to stretch and move through the power output of the gear or the rack. In addition, obviously, the fixed section 4 and the movable section 5 are in sliding fit, and can be in male-female insertion 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 it is also possible to 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, the moving section 5 is provided with wheels 8, the second moving frame 7 is provided with supporting portions 9, and the supporting portions 9 are symmetrically distributed on the second moving frame 7 with the circle center of the wheels 8 as the center line. On the one hand, the supporting portion 9 is used for defining a loading position of the transported object B on the second movable frame 7, so that the lifting direction of the transported object B on the second movable frame 7 can be quickly positioned, and the loading operation can be accurately and efficiently carried out. 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 the two supporting parts 9 are symmetrically distributed at 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 the transported objects 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 transported objects B are loaded can be further improved.

Furthermore, the second movable frame 7 is provided with a relatively telescopic supporting arm 10 for supporting the objects B of different sizes, and the supporting portion 9 is provided 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, the inner side of the frame body 11 is configured below), and when the object to be transported B is accommodated in the space of the two moving sections 5, the supporting arm 10 is controlled to extend to move to a position where the object to be transported B is engaged, and the supporting portion 9 on the supporting arm 10 can be supported by the object to be transported B, so that the compatible adaptation of the moving section 5 to various objects to be transported B with different sizes is greatly improved through the telescopic arrangement of the supporting arm 10, and the object to be transported B is centrally positioned on the two moving sections 5, particularly, the supporting portion 9 of the two supporting arms 10 is accurately arranged, and the loading effect is remarkably improved.

In this embodiment, a detection device (not shown) for detecting the transported object B is provided on the second moving frame 7 to calculate the telescopic distance of the support arm 10. Wherein, detection device includes distance sensor, and distance sensor sets up in bearing arm 10 one side for the direct distance between accurate monitoring bearing arm 10 and the transport B, and further feedback to cockpit 2.

As shown in fig. 6, 7 and 8, in the present embodiment, the first moving 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 central position where they intersect, a fixed end of the first link 12 is hinged to the frame body 11 of the moving frame, and a fixed end of the second link 13 is hinged to the fixed section 4. Wherein, be equipped with the guide rail on canned paragraph 4 and the support body 11, the removal end of first connecting rod 12 is located on canned paragraph 4's the guide rail, and the removal end of second connecting rod 13 is located on the guide rail of support body 11. Therefore, the first connecting rod 12 and the second connecting rod 13 are hinged to each other to form an X-shaped structure, and cooperate with the frame body 11 arranged on the two connecting rods 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 to the central position. Wherein, a driving rod 15 is arranged between the first driving device and the central position of the two connecting rods, and the end part of the driving rod 15 is hinged with one end of the first driving device. One end of the first driving device is hinged with the moving 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 central 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 by the driving rod 15 in a multi-connecting-rod transmission mode, and the ascending or descending of the lifting platform is correspondingly controlled.

It should be noted that, for the structural configuration of the second moving frame 7, reference may be made to the corresponding content of the first moving frame 6 in the foregoing, and details are not described herein. And, separate setting alone between two removal frame to can be nimble correspond according to the work demand and operate the realization.

As shown in FIG. 9, a factory floor layout is provided. At least three vehicles for freight loading are arranged in the same park, and are suitable for loading, transporting and transferring the materials (the transporters B) of all the plants in the park. The lifting height of the movable frame on the supporting arm 3 can meet the height of various loading platforms, the highest ground clearance of the loading platforms is 1.0 meter, the lowest ground clearance is 0 meter, and factors such as terrain slopes need to be considered. The materials are transported by manually driving vehicles in the cockpit 2, a WMS system is used for distributing operation tasks, and the materials are transported and distributed manually according to task boards. In other embodiments, the cockpit 2 may be unmanned, such as an AGV for more intelligent logistics transportation.

In the present embodiment, the driver's cabin 2 is configured as a towing vehicle, and the towing vehicle is provided with two rear-view mirrors, which can help the driver to better observe the surrounding environment during the driving process and prevent the driver from accidentally injuring pedestrians or public facilities. The radar monitors are arranged on the head (the front side of the chassis 1) and the tail (the rear side of the supporting arm 3) of the tractor, so that the safety protection of surrounding pedestrians and facilities can be guaranteed due to the view dead angle under the conditions of forward movement and backward movement. Because the tractor backs a car and gets into the loading bay, need dodge with barrier A and transportation thing B, in order to prevent tractor and its collision, so at the bottom installation image of backing a car of tractor, the driver can be in the cockpit 2 in the display screen clear see the relative position of automobile body and material, play safety protection and the effect of the adjustment of being convenient for. Due to the fact that the road surface environment is complex, impact force on the tractor in the transportation process such as ascending and descending, small-ditch ridge road surfaces, self weight of goods and the like is achieved, stability and reliability are guaranteed, and the maximum tonnage of the tractor capable of carrying load is 4.5 tons. The tractor is reserved with a space for upgrading and transforming unmanned AGV intelligence, can be carried out in a manual driving mode, and can be subsequently transformed into unmanned modes such as an unmanned AGV transport vehicle according to user requirements.

It should be noted that, as shown in fig. 10, the tractor has a friendly man-machine interface for displaying operation steps, working states, fault information, etc., and the software and hardware of the vehicle-mounted controller have the self-detection, self-diagnosis, and self-protection capabilities of the system, have the intelligent electric quantity detection function, and automatically send out a charging alarm when the electric quantity is insufficient. As shown in fig. 11, it is a schematic diagram of keys and graphics of a specific smart meter to facilitate the operation and use of the smart meter by the user.

As shown in fig. 12, various characteristics, weight, size, and performance parameters of the tractor are provided for the tractor's parameter table.

The power supply system of the tractor achieves the maximum use efficiency of the vehicle on the premise that the production rhythm requirement is met, a manual charging mode is adopted, when the electric quantity is low (limited to be lower than 20% of the total capacity), the tractor stops the transportation task, and the tractor is manually driven to return to a charging point for charging. And the battery compartment in the tractor keeps good ventilation, the ambient temperature keeps between-15 ℃ and 50 ℃ in the charging and discharging process, the batteries of the power supply system are prevented from having other heating units near the installation position, the batteries are placed at the lowest position of the vehicle or on the frame to prevent unnecessary temperature rise of the batteries, the short circuit of the terminal is avoided, the exposure to open fire is avoided, and the batteries are stored at the 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 link structure of the power system equipped with of the tractor is connected with the supporting arm 3 through a guide rail or a roller, the end surface of the supporting arm 3 plays a guiding role, and the link structure is linked with the hydraulic driving device 14 and correspondingly drives the movable frame to move up and down. And the supporting arm 3 is provided with power elements such as a driving device and the like, and is used for pushing the moving section 5 to move and reset relative to the fixed section 4. In addition, the forklift structure formed by the two supporting arms 3 is integrally welded by high-strength steel, the whole forklift is subjected to finish baking treatment, and the driving wheels positioned on the cockpit 2 and the wheels 8 positioned on the supporting arms 3 are made of rubber materials, so that the forklift is well suitable for outdoor road surfaces. Moreover, an electronic steering mechanism is adopted, so that driving is easy and labor-saving, the battery is in a side-pull type design, maintenance is better, the quality of all core components is reliable, and AGV transformation is subsequently conveniently carried out.

As shown in fig. 10 and fig. 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 specifically comprises the following steps:

1) When the electric quantity in the battery is reduced, the meter can continuously extinguish the LED backlight lamp on the meter by a specific algorithm so as to display the residual electric quantity of the battery to achieve the purpose of checking the electric quantity.

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

3) The entire bus system can be monitored, and when a node in the bus fails, the meter can be displayed on the meter in the form of a fault code, and the vehicle is stopped until the fault is removed.

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

s1: the system sends out a required signal, and composition and modeling are carried out according to the garden environment;

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

s3: loading the transporter B, enabling the opening of the support arm 3 to face the barrier A until the barrier 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 transporter B, accurately positioning the support arm 10 and the support part 9 thereof on the moving section 5 and the transporter B, and mutually engaging and limiting;

s4: acquiring and calculating the contour deviation of the support arm 3, the barrier A and the transport object, and adaptively guiding the support arm 3 to enter the support arm 3 to load the transport object B to finish the loading process;

s5: the second moving frame 7 is driven by the second driving device to lift the transported object B to move upwards to a position higher than the obstacle a (in this case, the first state in fig. 13), and the transported object B is moved out of the original position;

s6: and controlling the vehicle to move to the unloading point, unloading the transported object B, drawing a line on the ground at the unloading point, automatically and correspondingly acquiring and calculating the space deviation according to the distance between the line and the vehicle body, and adaptively guiding the vehicle to enter the supporting arm 3 to unload the transported object B (in the second state in the figure 13) so as to finish the unloading process.

The above are only preferred embodiments of the present invention, and the scope of the present invention is not limited to the above examples, and all technical solutions that fall under the spirit of the present invention belong to the scope of the present invention.

Claims

1. A vehicle for freight loading is suitable for crossing obstacles to load required transporters in a park; the vehicle comprises a chassis and a cab arranged on the chassis, wherein the cab is used for controlling the chassis to freely move; the device 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 moving section is provided with a second moving frame which is driven by a second driving device to ascend or descend relative to the moving section;

when the transport object provided with the obstacle needs to be carried, the openings of the two support arms of the vehicle face the obstacle to move until the obstacle is located in the area of the fixed section, 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 the cab to move so as to move the transport object out of the original position.

2. A vehicle for freight loading according to claim 1, wherein the mobile section is movable relative to the fixed section towards the transfer object to cause the second mobile frame to support the transfer object for movement out of the home position.

3. A vehicle for carrying cargo according to claim 2, wherein the fixed section is extended or retracted by means of a rack and pinion drive to push the movable section.

4. The vehicle for freight loading according to claim 1, wherein wheels are provided on the moving section, and support portions are provided on the second moving frame, and the support portions are symmetrically distributed on the second moving frame with a center of the wheel as a center line.

5. A vehicle for carrying cargo according to claim 4 wherein the second carriage is provided with relatively extendable and retractable support arms for supporting different sizes of cargo, the support portions being provided on the support arms.

6. A vehicle for carrying cargo according to claim 5, wherein the second movable frame is provided with a detection device for detecting the transported object so as to calculate the telescopic distance of the carrying arm.

7. A vehicle for cargo loading according to any one of claims 1 to 6, wherein the first mobile frame comprises a frame body, a first link and a second link, the first link and the second link rotate around a central position where they intersect, the fixed end of the first link is hinged to the frame body of the mobile frame, and the fixed end of the second link is hinged to the fixed section.

8. A vehicle for a freight loader according to claim 7, in which the fixed section and the frame are provided with guide rails, the moving end of the first link being provided on the guide rail of the fixed section and the moving end of the second link being provided on the guide rail of the frame.

9. A vehicle for cargo loading according to claim 8, wherein the first actuating means is a hydraulic actuating means, one end of the first actuating means being provided at the moving end of the first link for movement relative to the guide rail, the other end of the first actuating means being hinged to the central location.

10. A vehicle for carrying cargo according to claim 9, wherein a drive rod is provided between the first drive means and the central position of the two links, the end of the drive rod being hinged to one end of the first drive means.