CN216889153U - Rail guided vehicle and loading and unloading system - Google Patents

Abstract

The utility model provides a track guided vehicle and a loading and unloading system, wherein the track guided vehicle comprises a vehicle body and a loading and unloading assembly arranged on the vehicle body, the vehicle body is provided with a loading and unloading side for loading and unloading goods, and the loading and unloading assembly is movably arranged on the vehicle body along a running direction vertical to the vehicle body relative to the loading and unloading side so as to carry out loading and unloading operation on the goods; the loading and unloading assembly comprises an loading and unloading part for loading and unloading goods, and the loading and unloading part extends out of the vehicle body from the loading and unloading side when the loading and unloading assembly moves to the loading and unloading side; when the loading and unloading assembly moves to the loading and unloading side, the tilting moment of the loading and unloading part and the goods relative to the rail guided vehicle is smaller than the gravity moment of the gravity of the rail guided vehicle. The rail guided vehicle has a simple structure, and can prevent the rail guided vehicle from toppling in the process of loading and unloading cargoes to move relative to the vehicle body.

Description

Rail guided vehicle and loading and unloading system

Technical Field

The utility model relates to the technical field of loading and unloading vehicles, in particular to a rail guided vehicle and a loading and unloading system.

Background

With the rapid development of computer technology and the continuous improvement of automation level, the requirement for production and manufacturing automation is higher and higher.

Rail Guided Vehicles (RGV) are also called Rail shuttle cars or RGV cars, and the RGV cars are widely used in logistics storage industry, manufacturing industry and other industries. RGV carts include a handling assembly having a body positioned on the body, with a handling portion of the handling assembly typically extending outside the body for gripping of cargo. Currently, in order to avoid the situation that the loading and unloading assembly topples over during the process of loading, unloading and taking goods relative to the vehicle body, the conventional RGV is provided with an anti-toppling device on the vehicle body.

However, the anti-tipping device has a complex structure, not only increases the manufacturing cost of the RGV, but also has higher requirements on the use conditions and poor universality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rail guided vehicle and a loading and unloading system, which not only have simple structure, but also can prevent the rail guided vehicle from falling in the process of loading and unloading cargos to move relative to a vehicle body.

In a first aspect, the present invention provides a track-guided vehicle, which includes a vehicle body and a loading and unloading assembly provided on the vehicle body, the vehicle body having a loading and unloading side for loading and unloading goods, the loading and unloading assembly being movably provided on the vehicle body relative to the loading and unloading side in a direction perpendicular to a running direction of the vehicle body to perform loading and unloading work on the goods; the loading and unloading assembly comprises an loading and unloading part for loading and unloading the goods, and the loading and unloading part extends out of the vehicle body from the loading and unloading side when the loading and unloading assembly moves to the loading and unloading side; when the loading and unloading assembly moves to the loading and unloading side, the tilting moment of the loading and unloading part and the goods relative to the rail guided vehicle is smaller than the gravity moment of the gravity of the rail guided vehicle.

In some optional embodiments, the bottom of the vehicle body is provided with a plurality of travelling wheels, the travelling wheels are symmetrically distributed on two opposite sides of the vehicle body, and when the loading and unloading assembly moves to the loading and unloading side, the supporting point of the tilting moment is located on the inner side of the travelling wheel on the loading and unloading side.

In some optional embodiments, the road wheel comprises a first wheel body abutting against the track surface of the track, and a second wheel body connected to the inner side of the first wheel body and constituting a rim of the inner side of the road wheel, the supporting point being located on the second wheel body.

In some alternative embodiments, the tilting moment is less than eighty percent of the gravitational moment when the load handling assembly is moved to the load handling side.

In some alternative embodiments, the sum of the maximum cargo carrying weight of the handling portion and the handling portion is less than sixty percent of the weight of the railcar.

In some alternative embodiments, the maximum cargo carrying weight of the loading and unloading section has a weight of 2000kg or less, and the tilting arm of the tilting moment is 1m or more and 1.4m or less.

In some optional embodiments, a plane on which the support point is located on the traveling wheel is a support surface, the support surface is parallel to the running direction of the vehicle body, a vertical distance between the gravity center of the track-guided vehicle and the support surface is a gravity arm, the width of the vehicle body is greater than twice of the gravity arm, and the direction of the width of the vehicle body is perpendicular to the running direction of the vehicle body.

In some optional embodiments, the road wheel comprises a first wheel body abutting against the track surface of the track, and a second wheel body located on the inner side of the first wheel body and constituting a rim of the inner side of the road wheel, the supporting point being located on the second wheel body.

In some optional embodiments, the loading and unloading device further comprises a driving assembly, and the loading and unloading assembly is connected with the driving assembly and is movably arranged relative to the loading and unloading side under the driving of the driving assembly.

In some optional embodiments, the driving assembly includes a driving motor, a driving gear, and a rack, the driving motor is disposed on the loading and unloading assembly, the rack is disposed on the vehicle body along a width direction of the vehicle body, and the driving gear is connected to the driving motor and engaged with the rack.

In some optional embodiments, the vehicle body comprises a base and a lifting mechanism, the lifting mechanism is arranged on the base, and the loading and unloading assembly and the driving assembly are arranged on the lifting mechanism.

In some optional embodiments, the lifting mechanism includes a lifting platform, a lifting assembly and a fixed seat, and the lifting assembly abuts between the fixed seat and the lifting platform to drive the lifting platform to perform lifting movement relative to the fixed seat.

In some optional embodiments, the lifting assembly comprises two support arm assemblies, a connecting arm and a driving rod, the support arm assembly comprises a first support arm and a second support arm matched with the length of the first support arm, the middle parts of the first support arm and the second support arm are hinged, and the first support arm and the second support arm are arranged between the lifting platform and the fixed seat in a crossed manner and are arranged between the lifting platform and the fixed seat in a rotating manner;

the linking arm is connected two between the first support arm, the tip butt of actuating lever is in on the linking arm, with the drive two first support arm is in lift platform with synchronous rotation between the fixing base.

In a second aspect, the present invention provides a handling system comprising a running platform and a track guided vehicle as defined in any one of the preceding claims, the track guided vehicle being located on the running platform.

The utility model provides a track guided vehicle and a loading and unloading system, wherein the loading and unloading operation is performed on the goods through an unloading and unloading part of an unloading and unloading assembly, so that the goods are loaded and unloaded, and the tilting moment of the unloading and unloading part and the goods relative to the track guided vehicle is smaller than the gravity moment of the gravity of the track guided vehicle when the unloading and unloading assembly moves to the loading and unloading side of a vehicle body (namely the unloading and unloading part is at the limit position on the vehicle body). Thus, when the cargo is moved by the loading and unloading operation performed by the loading and unloading part, the loading and unloading part is not inclined toward the cargo side when the loading and unloading operation is performed by the loading and unloading part due to the gravity moment. Therefore, the guided vehicle provided by the embodiment of the utility model can prevent the loading and unloading part and the loading and unloading assembly from toppling over in the process of loading, unloading and taking the cargos to move relative to the vehicle body without arranging an anti-toppling device, so that the guided vehicle also has the characteristic of simple structure.

Drawings

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

FIG. 1 is a schematic view of a track guided vehicle according to an embodiment of the present invention;

FIG. 1a is an enlarged view of the track guided vehicle of FIG. 1 in section A;

FIG. 2 is a schematic structural view of a rail guided vehicle on a track in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of the track guided vehicle of FIG. 2 in section B;

FIG. 4 is a schematic illustration of a raised lift platform for a track guided vehicle according to an embodiment of the present invention;

FIG. 5 is an enlarged view of the track guided vehicle of FIG. 4 in section C;

fig. 6 is a schematic structural diagram of a lifting platform according to an embodiment of the present invention;

FIG. 7 is a schematic view of a drive assembly mounted on a lift platform according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a loading and unloading system according to an embodiment of the present invention.

Description of reference numerals:

100-a track guided vehicle; 10-a vehicle body; 11-a base; 111-road wheels; 1111-a first wheel body; 1112-a second wheel; 1113-a support surface; 112-a mounting cavity; 13-load and unload side;

14-a lifting mechanism; 141-a lifting platform; 142-a lifting assembly; 1421 — first support arm; 1422-second support arm; 1423-first connecting arm; 1424 — second link arm; 1425-drive rod; 143-fixed seat;

20-a handling assembly; 21-a detachable part; 22-a fixing plate; 23-a fixing frame; 30-a drive assembly; 31-a drive motor; 32-a drive gear; 33-a rack;

200-a driving platform; 210-a platform; 220-a track; 230-loading and unloading position;

300-cargo; 400-truck.

Detailed Description

As described in the background art, the conventional RGV is provided with an anti-tipping device on the car body, and the anti-tipping device can be arranged on the lifting platform of the car body, so that the loading and unloading assembly can be effectively prevented from tipping towards one side of the goods during the process of grabbing the goods to move.

However, the anti-tipping device on the existing RGV trolley is complex in structure, and the problem of tipping is solved to a certain extent, but the complexity of the RGV trolley structure is increased, so that the manufacturing cost of the RGV trolley is high, the use condition requirement of the anti-tipping device is high, different structures are required to be adopted according to different tracks formed by the RGV trolley, and the universality of the anti-tipping device on different RGV trolleys is poor.

In view of the above, the present invention provides a track-guided vehicle and a cargo handling system, in which cargo handling is performed by a handling unit of a handling unit, and in addition, when the handling unit is moved to a handling side of a vehicle body (that is, when the handling unit is at a limit position on the vehicle body), tilting moment of the handling unit and the cargo with respect to the track-guided vehicle is smaller than gravity moment of gravity of the track-guided vehicle. In this way, when the loading and unloading part acts on the goods to perform loading and unloading operation and move, the loading and unloading part does not incline towards one side of the goods when performing the loading and unloading operation under the action of gravity moment, so that the situation that the loading and unloading part tilts relative to the car body in the process of loading and unloading the goods can be prevented, and the rail guided vehicle also has the characteristic of simple structure.

The construction of the track guided vehicle of the present invention will be further explained with reference to the accompanying detailed drawings.

Examples

FIG. 1 is a schematic view of a track guided vehicle according to an embodiment of the present invention.

The present invention provides a Rail guided Vehicle 100, the Rail guided Vehicle 100 (RGV) is also called an RGV car or a Rail shuttle car. Referring to fig. 1, the track guided vehicle 100 includes a vehicle body 10 and a loading and unloading assembly 20 provided on the vehicle body 10, the vehicle body 10 having a loading and unloading side 13 for loading and unloading a cargo 300, the loading and unloading assembly 20 being movably provided on the vehicle body 10 with respect to the loading and unloading side 13 in a direction perpendicular to a running direction of the vehicle body 10 to perform loading and unloading work on the cargo 300. The direction of movement of the handling unit 20 on the vehicle body 10 can be referred to as the X direction in fig. 1, wherein the X direction can also be understood as the width direction of the RGV car. The handling unit 20 includes a handling portion 21 for handling the cargo 300, and when the handling unit 20 is moved to the handling side 13, the handling portion 21 is protruded from the handling side 13 to the vehicle body 10 so as to handle the cargo 300.

As shown in fig. 1, when the cargo handling assembly 20 moves to the cargo handling side 13, the tilting moment fdown of the cargo handling section 21 and the cargo 300 with respect to the track guided vehicle 100 is smaller than the gravity moment fdown of the gravity of the track guided vehicle 100. Here, when the attachment/detachment unit 20 moves to the attachment/detachment side 13, the position of the attachment/detachment unit 20 on the vehicle body 10 can be understood as the limit position of the attachment/detachment portion 21 on the vehicle body 10. In addition to the cargo 300 being loaded and unloaded by the cargo loading and unloading section 21 as described above, when the cargo loading and unloading unit 20 is moved to the loading and unloading side 13 of the vehicle body 10, the tilting moment fpaud of the cargo loading and unloading section 21 and the cargo 300 with respect to the track-guided vehicle 100 is smaller than the gravity moment fpaud of the gravity of the track-guided vehicle 100, and the tilting of the track-guided vehicle 100 by the tilting moment fpaud can be overcome and eliminated by the gravity moment, so that the cargo loading and unloading section 21 is prevented from being tilted toward the cargo 300 side during the movement of the cargo 300 to the limit position. Therefore, the track-guided vehicle 100 according to the embodiment of the present invention can prevent the cargo 300 from falling down during the movement of the cargo handling unit 21 with respect to the vehicle body 10 without providing an anti-tilting device, so as to maintain the balance of the RGV car during the cargo handling of the cargo 300, and thus the track-guided vehicle 100 has a simple structure, is not limited by the track 220 of the traveling platform 200, and has a high versatility.

Referring to fig. 1, a plurality of road wheels 111 are provided at the bottom of the car body 10, and the plurality of road wheels 111 are symmetrically distributed at opposite sides of the car body 10 so that the RGV car can travel on the rail 220. As shown in fig. 1, when the loading and unloading assembly 20 is moved to the loading and unloading side 13, the support point of the tilting moment freighter is located inside the road wheels 111 of the loading and unloading side 13. In this way, while the cargo handling section 21 is acting on the cargo 300 and performing the cargo handling operation and moving, the support point remains within the range of the vehicle body 10, and the weight of the cargo handling section 21 and the cargo 300 is within the range that can be borne by the track-guided vehicle 100 even when the tilting moment fpaud is smaller than the gravity moment fpaud, and it is possible to prevent the cargo handling section 21 from tilting toward the cargo 300 side while performing the cargo handling operation and moving.

FIG. 1a is an enlarged view of the track guided vehicle of FIG. 1 at section A.

Referring to fig. 1a, the traveling wheel 111 includes a first wheel 1111 and a second wheel 1112, the first wheel 1111 abuts against the surface of the track 220, the second wheel 1112 is located inside the first wheel 1111 and forms a rim of the traveling wheel 111, and the supporting point may be located on the second wheel 1112. In this way, while the cargo 300 is moving by the cargo handling unit 21 performing the cargo handling operation, the support point is located on the second wheel 1112, and the cargo 300 can be prevented from inclining toward the side of the cargo 300 while the cargo handling unit 21 is moving by the cargo handling operation with the tilting moment fdown smaller than the gravity moment fdown.

Illustratively, the maximum wheel diameter of the second wheel body 1112 is larger than the maximum wheel diameter of the first wheel body 1111, so as to form a guiding structure with the first wheel body 1111. This allows the first wheel 1111 to guide the movement on the track 220 by the second wheel 1112 while the supporting point is located inside the traveling wheel 111 on the loading/unloading side 13.

In some embodiments, the handling assembly 20 moves to the handling side 13 with a tilting moment fjord that is less than eighty percent of the gravity moment fjord, such as seventeen percent of the gravity moment fjord. Thus, the tilting moment F cargo can be controlled within a certain range without affecting the loading and unloading of the cargo 300, so that the cargo 300 can be prevented from tilting toward one side of the cargo during the loading and unloading operation movement of the loading and unloading section 21 only by the counterweight of the RGV truck, and the RGV truck has good balance during the movement of the loading and unloading section 21 relative to the truck body 10.

Since the moment is the product of the force and the moment arm, the force may include, but is not limited to, gravity. The magnitude of the moment is therefore dependent on two factors: gravity and moment arms. In this embodiment, the weight of the cargo 300 to be carried and the tilting arm of the tilting moment can be adjusted so that the tilting moment F cargo is smaller than the gravity moment F vehicle.

Wherein the sum of the maximum cargo carrying weight of the handling section 21 and the handling section 21 is less than sixty percent of the weight of the track guided vehicle 100. Illustratively, the sum of the maximum cargo carrying weights of the handling section 21 and the handling section 21 may be 2300 kg. The weight of the track guided vehicle 100 may be 4081 kg. The sum of the maximum cargo carrying weight of the handling section 21 and the handling section 21 may be 56.4% of the weight of the track guided vehicle 100. In this way, the weight of the load 300 loaded and unloaded by the loading and unloading unit 21 or the tilting arm L1 can be adjusted without changing the weight of the track guided vehicle 100, so that the tilting moment fpaud can be ensured to be smaller than the gravity moment fpaud, and the purpose of preventing the loading and unloading unit 21 from tilting toward the side of the load 300 during the loading and unloading operation movement can be achieved.

Referring to FIG. 1, the plane of the support point on the road wheels 111 is the support surface 1113, the support surface 1113 is parallel to the direction of travel of the vehicle body 10, and when the loading and unloading assembly 20 is moved to the loading and unloading side 13, the vertical distance between the center of gravity of the guided vehicle 100 and the support surface 1113 on the road wheels 111 is the gravitational arm L2. In some embodiments, the width W of the vehicle body 10 may be greater than twice the gravitational arm L2, wherein the width W of the vehicle body 10 is oriented perpendicular to the direction of travel of the vehicle body 10. This enables the center of gravity of the RGV car to be offset as far as possible to the opposite side of the loading side 13 to increase the gravitational arm L2 to further ensure that the tilting moment fought is less than the gravitational moment fought.

For example, the width W of the vehicle body 10 may include, but is not limited to, 2.48m, and the arm of gravity L2 may include, but is not limited to, 1.03 m. From this, it can be calculated that the gravity moment Fcar is 4203kg · m. Alternatively, in some embodiments, the weight of the RGV car and the gravitational arm L2 may take on other values.

The structure of the RGV car in this embodiment will be further described below by taking the gravitational moment Fcar as 4203kg · m as an example.

Referring to fig. 1, when the loading and unloading assembly 20 moves to the loading and unloading side 13, the vertical distance between the center of gravity of the loading and unloading portion 21 and the support surface 1113 is the tilting arm L1. The tilting arm L1 of the tilting moment F cargo is more than or equal to 1m and less than or equal to 1.4 m.

Illustratively, the tilting moment arm L1 may be 1m, 1.1m, 1.2m, 1.3m, or 1.4m, etc. This ensures stability of the cargo handling section 21 when handling the cargo 300. Illustratively, the maximum cargo carrying weight of the cargo handling section 21 may be 2000kg or less. That is, the maximum weight of the cargo 300 that can be handled by the RGV car may be 2000 kg. When the weight of the RGV carriage can be 4081Kg, the weight of the loading/unloading part 21 is usually 300 Kg.

When the weight of the cargo 300 is 2000kg and the tilting arm L1 is 1.4m, the tilting moment F is a product of the sum of the weights of the cargo 300 and the loading and unloading unit 20 and the tilting arm L1, and thus the maximum value of the tilting moment F is 3220kg · m. It follows that the tilting moment fought is smaller than the gravitational moment fought. This can prevent the cargo 300 from inclining toward the cargo during the movement of the cargo handling section 21 for the cargo handling operation.

FIG. 2 is a schematic view of a rail guided vehicle configured on a track according to an embodiment of the present invention, and FIG. 3 is an enlarged view of the rail guided vehicle of FIG. 2 at section B.

Referring to fig. 2 and 3, the handling assembly 20 may include two oppositely disposed handling portions 21, the two handling portions 21 being clamped to opposite sides of the cargo 300. Illustratively, the two loading and unloading sections 21 may constitute clamping structures, such as claws, of the track guided vehicle 100. In some embodiments, the loading and unloading portion 21 may also be a fork or other structure capable of loading and unloading. In the present embodiment, the specific configuration of the attaching and detaching portion 21 is not further limited.

Referring to fig. 3, the mounting and dismounting assembly 20 may further include a fixing plate 22 and a fixing frame 23, and the mounting and dismounting portion 21 may be disposed at a side of the fixing frame 23 facing the mounting and dismounting side 13 and fixed to the fixing plate 22 by the fixing frame 23. The fixed plate 22 is provided on the vehicle body 10 and slidably disposed with respect to the vehicle body 10 in a direction perpendicular to the running direction of the vehicle body 10. For example, the fixed plate 22 may be slidably coupled to the vehicle body 10 via a slider. This facilitates the movement of the attaching/detaching portion 21 relative to the attaching/detaching side 13 by the driving of the driving unit 30.

To effect movement of the load handling assembly 20 relative to the load handling side 13 on the vehicle body 10, and as shown with reference to fig. 3, in some alternative embodiments, the RGV cart may further include a drive assembly 30, the drive assembly 30 being disposed on the vehicle body 10, the load handling assembly 20 being coupled to the drive assembly 30 and being movably disposed relative to the load handling side 13 under drive of the drive assembly 30.

FIG. 4 is a schematic illustration of a raised lifting platform of the track guided vehicle according to an embodiment of the present invention, and FIG. 5 is an enlarged view of the track guided vehicle of FIG. 4 at section C.

Referring to fig. 3 to 5, as one possible embodiment, the driving assembly 30 may include a driving motor 31, a driving gear 32, and a rack 33, the driving motor 31 may be provided on the loading and unloading assembly 20, the rack 33 is provided on the vehicle body 10 in the width direction of the vehicle body 10, and the driving gear 32 is connected to the driving motor 31 and engaged with the rack 33. Wherein the driving motor 31 may be provided on the fixing plate 22. Such a drive arrangement of the drive assembly 30 may be understood as a geared arrangement. Since the width direction of the vehicle body 10 is perpendicular to the direction of the rails 220 and perpendicular to the running direction of the vehicle body 10. Thus, under the driving of the driving motor 31, the driving gear 32 can rotate relative to the rack 33 along the extending direction of the rack 33, so as to drive the whole loading and unloading assembly 20 to move relative to the loading and unloading side 13, so that the loading and unloading part 21 moves towards the direction close to the goods 300 or away from the goods 300, thereby realizing the loading and unloading operation of the goods 300.

Alternatively, in some embodiments, the drive assembly 30 may be a chain sprocket drive, a cylinder drive, a hydraulic cylinder drive, or the like. In the present embodiment, the structural form of the driving assembly 30 is not further limited.

The RGV cart of the present invention is further described below using the drive assembly 30 as an example of a geared architecture.

To facilitate the loading and unloading of the cargo 300 at different heights by the loading and unloading assembly 20, as shown in fig. 4, the vehicle body 10 may include a base 11 and a lifting mechanism 14, the lifting mechanism 14 is disposed on the base 11, and the loading and unloading assembly 20 and the driving assembly 30 are disposed on the lifting mechanism 14. This not only enables the attachment of the handling assembly 20 and the drive assembly 30 to the vehicle body 10, but also enables the drive assembly 30 to handle loads 300 at different heights under the drive of the lift mechanism 14.

As a possible embodiment, the base 11 may be provided with an open-ended mounting cavity 112, and the lifting mechanism 14 may be embedded in the mounting cavity 112. Illustratively, the mounting cavity 112 may be a mounting groove on the base 11 that is structurally compatible with the lifting mechanism 14. With the elevator mechanism 14 at the initial height, the elevator mechanism 14 may be fully embedded within the base 11 as shown in fig. 3. During the lifting and lowering movement of the lifting and lowering mechanism 14 relative to the base 11, the lifting and lowering mechanism 14 can pass through the open end and bring the loading and unloading assembly 20 and the driving assembly 30 together to a predetermined height (as shown in fig. 4).

Fig. 6 is a schematic structural diagram of a lifting platform according to an embodiment of the present invention.

Referring to fig. 6, the lifting mechanism 14 may include a lifting platform 141, a fixing base 143, and a lifting assembly 142, wherein the lifting assembly 142 is abutted between the fixing base 143 and the lifting platform 141 to drive the lifting platform 141 to perform a lifting motion relative to the fixing base 143. The fixing seat 143 may be disposed in the installation cavity 112 of the base 11, so as to fix the lifting mechanism 14 on the fixing seat 143. Thus, under the driving of the lifting assembly 142, the lifting platform 141 can be driven to perform lifting motion relative to the fixing base 143, so as to drive the loading and unloading assembly 20 and the driving assembly 30 to perform synchronous motion, and move the driving assembly 30 to the preset height.

In some embodiments, the lift assembly 142 may be a scissor lift structure as shown in fig. 6. Referring to fig. 6, the scissor type lifting structure includes two support arm assemblies, a connecting arm and a driving rod 1425, the support arm assembly includes a first support arm 1421 and a second support arm 1422 matching with the length of the first support arm 1421, the middle portions of the first support arm 1421 and the second support arm 1422 are hinged, and the first support arm 1421 and the second support arm 1422 are crosswise disposed between the lifting platform 141 and the fixing base 143 and are rotatably disposed between the lifting platform 141 and the fixing base 143.

The connecting arm is connected between the two first supporting arms 1421, and the end of the driving rod 1425 abuts on the connecting arm to drive the two first supporting arms 1421 to rotate synchronously between the lifting platform 141 and the fixing base 143. Like this at first support arm 1421 synchronous rotation between lift platform 141 and fixing base 143, because the middle part of first support arm 1421 and second support arm 1422 is articulated, two second support arms 1422 will also synchronous rotation between lift platform 141 and fixing base 143 under the drive of first support arm 1421 to can drive lift platform 141 and do elevating movement for fixing base 143.

Wherein, the bottom of the first supporting arm 1421 is hinged on the fixing base 143, and the top of the first supporting arm 1421 is slidably disposed on the lifting platform 141. The bottom end of the second support arm 1422 is slidably disposed on the fixing base 143, the top end of the second support arm 1422 is hinged to the lifting platform 141, and the middle portions of the first support arm 1421 and the second support arm 1422 are hinged to each other, so that the bottom ends of the first support arm 1421 and the second support arm 1422 can be synchronously moved between the lifting platform 141 and the fixing base 143 under the action of external force.

Referring to fig. 6, the connecting arm may include a first connecting arm 1423 and a second connecting arm 1424, the first connecting arm 1423 and the second connecting arm 1424 are each connected at different positions between the two first support arms 1421, and the first connecting arm 1423 is disposed near the top end of the first support arm 1421 with respect to the second connecting arm 1424.

In some embodiments, the driving rod 1425 may be connected between the first connecting arm 1423 and the second connecting arm 1424 to drive the top ends of the two first supporting arms 1421 to synchronously slide on the lifting platform 141, so as to realize the rotation of the first supporting arms 1421 between the lifting platform 141 and the fixing base 143, so as to drive the two second supporting arms 1422 to synchronously rotate between the lifting platform 141 and the fixing base 143 through the two first supporting arms 1421, thereby realizing the lifting of the lifting platform 141.

Alternatively, in some embodiments, the lifting assembly 142 may also be a screw jack or other structure that can perform a lifting function. In the present embodiment, the structural form of the lifting assembly 142 is not further limited.

Fig. 7 is a schematic view of an assembly of a driving assembly on a lifting platform according to an embodiment of the present invention.

Referring to fig. 7, the rack 33 is provided on the elevating platform 141 and below the fixed plate 22. The drive motor 31 may be arranged on the fastening plate 22 on the side of the fastening frame 23 facing away from the attachment/detachment portion 21.

It should be noted that, in this embodiment, the RGV car may further include other structures, such as a charging structure, a road wheel 111 driving structure, and the like. In this embodiment, no further description is given.

Fig. 8 is a schematic structural diagram of a loading and unloading system according to an embodiment of the present invention.

In view of the foregoing, the present invention provides a handling system that may include a running platform 200 and the track guided vehicle 100 of the present invention, the track guided vehicle 100 may be located on the running platform 200. The running platform 200 may be provided with a track 220 for the rail guided vehicle 100 to run. A plurality of track guided vehicles 100 may be provided within the handling system and the track guided vehicles 100 may be symmetrically positioned on opposite sides of a vehicle carrying cargo 300, such as a truck 400. Two traveling platforms 200 may be respectively disposed at both sides of the truck 400, and a loading/unloading place 230 for the truck 400 to park is formed between the two traveling platforms 200. The track guided vehicle 100 can be used to load and unload the freight 300 on the freight car 400 by performing the loading and unloading work on the freight car 400 alone.

When a cargo handling unit 20 is moved to a cargo handling side 13 of a vehicle body 10 (that is, a cargo handling section 21 is at a limit position on the vehicle body 10), a tilting moment of the cargo handling section 21 and a cargo 300 with respect to the track guided vehicle 100 is smaller than a gravity moment of a gravity of the track guided vehicle 100. This makes it possible to prevent the cargo handling section 21 from falling down during the movement of the cargo 300 relative to the vehicle body 10, and to make the track-guided vehicle 100 have a simple structure.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, display structure, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (13)

1. A track guided vehicle comprising a vehicle body and a loading/unloading unit provided on the vehicle body, the vehicle body having a loading/unloading side for loading and unloading a cargo, the loading/unloading unit being provided movably relative to the loading/unloading side in a direction perpendicular to a running direction of the vehicle body so as to perform a loading/unloading operation on the cargo; the loading and unloading assembly comprises an loading and unloading part for loading and unloading the goods, and the loading and unloading part extends out of the vehicle body from the loading and unloading side when the loading and unloading assembly moves to the loading and unloading side; when the loading and unloading assembly moves to the loading and unloading side, the tilting moment of the loading and unloading part and the goods relative to the rail guided vehicle is smaller than the gravity moment of the gravity of the rail guided vehicle.

2. The track guided vehicle of claim 1, wherein the bottom of the body has a plurality of road wheels symmetrically disposed on opposite sides of the body, and the mounting and dismounting assembly is movable to the mounting and dismounting side such that the support point of the tilting moment is located inside the road wheels on the mounting and dismounting side.

3. A rail guided vehicle according to claim 2, wherein the road wheels comprise a first wheel body which abuts against the track surface of the track, and a second wheel body which is connected to the inner side of the first wheel body and constitutes a rim of the inner side of the road wheels, the support points being located on the second wheel body.

4. The track guided vehicle of claim 2, wherein the tilting moment is less than eighty percent of the gravitational moment as the load handling assembly moves to the load handling side.

5. The rail guided vehicle of claim 4, wherein the sum of the maximum cargo carrying weight of the handling portion and the handling portion is less than sixty percent of the weight of the rail guided vehicle.

6. The rail-guided vehicle according to claim 4, wherein the maximum load-carrying weight of the loading and unloading section is equal to or less than 2000kg, and the tilting arm of the tilting moment is equal to or greater than 1m and equal to or less than 1.4 m.

7. The track guided vehicle of claim 2, wherein the support point is located on the ground wheel on a plane that is parallel to the direction of travel of the body, the vertical distance between the center of gravity of the track guided vehicle and the support plane is a gravitational force arm, the width of the body is greater than twice the gravitational force arm, and wherein the direction of the width of the body is perpendicular to the direction of travel of the body.

8. The track guided vehicle of any one of claims 1-7, further comprising a drive assembly, the load handling assembly being coupled to the drive assembly and movably disposed relative to the load handling side upon actuation of the drive assembly.

9. The track guided vehicle of claim 8, wherein the drive assembly includes a drive motor provided on the loading and unloading assembly, a drive gear provided on the body in the width direction of the body, and a rack gear coupled to the drive motor and engaged with the rack gear.

10. The rail guided vehicle of claim 9, wherein the body includes a base and a lift mechanism, the lift mechanism being disposed on the base, the handling assembly and the drive assembly being disposed on the lift mechanism.

11. The rail guided vehicle of claim 10, wherein the lifting mechanism includes a lifting platform, a lifting assembly and a fixed mount, the lifting assembly abutting between the fixed mount and the lifting platform to drive the lifting platform in a lifting motion relative to the fixed mount.

12. The track guided vehicle of claim 11, wherein the lifting assembly comprises two support arm assemblies, a connecting arm and a driving rod, the support arm assembly comprises a first support arm and a second support arm matched with the length of the first support arm, the middle parts of the first support arm and the second support arm are hinged, and the first support arm and the second support arm are arranged between the lifting platform and the fixed seat in a crossed manner and are arranged between the lifting platform and the fixed seat in a rotating manner;

the linking arm is connected two between the first support arm, the tip butt of actuating lever is in on the linking arm, with the drive two first support arm is in lift platform with synchronous rotation between the fixing base.

13. A handling system comprising a running platform and a track guided vehicle as claimed in any one of claims 1 to 12, said track guided vehicle being located on said running platform.

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