Moving chassis and carrying device

Abstract

The invention relates to a moving chassis and a carrying device, and belongs to the technical field of intelligent warehousing. The carrying device comprises a movement chassis used for driving a carrier to move, the movement chassis comprises a bearing body and a movement mechanism, the bearing body extends on a plane defined by a first direction and a second direction which are perpendicular to each other and is provided with an installation area for installation of the carrier, and the installation area is eccentrically arranged relative to the center line of the bearing body in the first direction. The moving mechanism is relatively close to the first end, located in the first direction, of the bearing body and comprises a driving wheel and a driven wheel. The mounting area is relatively close to the end where the driving wheel is located, so that the gravity center line of the mounted carrier is close to the driving wheel, the driving wheel can be prevented from slipping, meanwhile, the driven wheel only needs to be arranged on one side of the driving wheel, and compared with the prior art, the structure is simpler.

Description

Technical Field

[0001] This invention relates to a moving chassis and a handling device, belonging to the field of intelligent warehousing technology. Background Technology

[0002] With the rapid development of the logistics and warehousing industry, the construction of automated warehouses for storing goods is becoming more and more widespread. Various intelligent equipment such as stacking AGVs and AMRs used in automated warehouses are becoming more and more common, especially forklift-type intelligent equipment, where goods are stacked on pallets and the pallets are picked up by forks to realize the transfer of goods.

[0003] Existing robots, designed to adapt to the ground, typically have a chassis assembly comprising two hinged chassis; a drive wheel assembly mounted on one of the chassis; and omnidirectional wheel assemblies connected to each chassis via a buffer assembly. A support platform is connected to both chassis via an adjustment assembly. By employing this structure and using a buffer assembly to connect the omnidirectional wheel assemblies to the chassis, the robot chassis gains a degree of adaptability to the ground, ensuring contact between each omnidirectional wheel assembly and the ground, thus enhancing chassis stability.

[0004] However, it also has the following drawbacks: In order to prevent the drive wheels from slipping, the support platform is set directly above the drive wheel assembly. This setting results in universal wheel assemblies on both sides of the drive wheel assembly, which makes the chassis structure more complex. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a simple moving chassis and a transport device that can prevent slippage.

[0006] This invention provides a motion chassis for driving a vehicle, comprising:

[0007] The supporting body extends in a plane defined by a first direction and a second direction that are perpendicular to each other, and has a mounting area for mounting the vehicle.

[0008] The installation area is offset relative to the centerline of the support body in the first direction, and is relatively close to the first end of the support body located in the first direction; and

[0009] Sports organizations, including:

[0010] A drive wheel, rotatably mounted on the support body and relatively close to a first end of the support body located in the first direction, wherein part or all of the drive wheel protrudes from the lower surface of the support body; and

[0011] A driven wheel is disposed on the bearing body and relatively close to the second end of the bearing body in the first direction, and part or all of the driven wheel protrudes from the lower surface of the bearing body.

[0012] In one embodiment,

[0013] The drive wheels include two sets spaced apart along the second direction.

[0014] When the two sets of drive wheels rotate in opposite directions and at the same speed, the moving chassis turns, and at this time the center of rotation is located between the two sets of drive wheels.

[0015] In one embodiment,

[0016] The supporting body has symmetrically arranged counterweights at both ends in the second direction, with the counterweights being relatively close to the second end of the supporting body in the first direction.

[0017] The counterweight bin is configured to carry the counterweight.

[0018] In one embodiment,

[0019] The counterweight includes multiple counterweight plates, which are stacked in the counterweight chamber along the first direction.

[0020] In one embodiment,

[0021] The counterweight chamber is also equipped with retaining bars and bolt fasteners.

[0022] The baffle is fixed to the outer side of the bottom of the counterweight and extends along the first direction. Each counterweight has a notch on the outer side of its bottom end, and the notch on each counterweight abuts against the baffle.

[0023] The bolt fasteners are configured to pass through each of the balance plates and connect to the load-bearing body along the second direction.

[0024] In one embodiment,

[0025] The supporting body is provided with receiving compartments, and the number of receiving compartments is consistent with the number of driven wheels.

[0026] The receiving compartment is located relatively close to the second end of the supporting body in the first direction, and the driven wheel is installed inside the receiving compartment.

[0027] The top of the receiving compartment has a first opening for the corresponding driven wheel to be inserted into the receiving compartment, and the bottom of the receiving compartment has a second opening for the corresponding driven wheel to protrude from the lower surface of the supporting body.

[0028] The driven wheel is fixed to the top of a connecting plate that abuts against the upper surface of the bearing body, and the connecting plate is fixedly connected to the bearing body.

[0029] In one embodiment, it further includes:

[0030] Guide units are disposed at both ends of the supporting body in the second direction.

[0031] The guiding unit includes at least one guide wheel, which is rotatably mounted on the supporting body, and part or all of the guide wheel protrudes from the side of the supporting body located in the second direction.

[0032] The rotation plane of the guide wheel is parallel to the plane defined by the first direction and the second direction.

[0033] In one embodiment,

[0034] The supporting body includes:

[0035] Base plate;

[0036] At least two main side beams are fixed to the upper surface of the base plate and spaced apart along the second direction, the main side beams extending along the first direction; and

[0037] At least two auxiliary side beams are fixed to the upper surface of the base plate and spaced apart along the first direction, and the main side beam extends along the second direction.

[0038] Each of the auxiliary side beams is fixedly connected to all of the main side beams.

[0039] In one embodiment,

[0040] The supporting body also includes:

[0041] At least one first reinforcing beam is fixed to the upper surface of the base plate and located between the two outermost auxiliary side beams. The first reinforcing beam extends along the second direction, and each first reinforcing beam is fixedly connected to all of the main side beams; and

[0042] At least one second reinforcing beam is fixed to the upper surface of the base plate and located between the two outermost main side beams. The second reinforcing beam extends along the first direction, and each second reinforcing beam is fixedly connected to all of the auxiliary side beams.

[0043] Each of the first reinforcing beams is fixedly connected to all of the second reinforcing beams.

[0044] The present invention also provides a conveying device, comprising:

[0045] The motion chassis is the motion chassis as described above; and

[0046] A gantry system is installed in the installation area, with the proximal side of the installation area relative to the first direction being the front side of the conveying device.

[0047] Therefore, the present invention has the following advantages compared with the prior art:

[0048] According to the present invention, a motion chassis and a transport device are provided. The transport device includes a motion chassis for driving a vehicle. The motion chassis includes a load-bearing body and a motion mechanism. The load-bearing body extends in a plane defined by a first direction and a second direction that are perpendicular to each other, and has a mounting area for mounting the vehicle. The mounting area is eccentrically positioned relative to the centerline of the load-bearing body in the first direction and is relatively close to the first end of the load-bearing body in the first direction. The motion mechanism includes a drive wheel and a driven wheel. The drive wheel is rotatably mounted on the load-bearing body and is relatively close to the first end of the load-bearing body in the first direction. Part or all of the drive wheel protrudes from the lower surface of the load-bearing body. The driven wheel is mounted on the load-bearing body and is relatively close to the second end of the load-bearing body in the first direction. Part or all of the driven wheel protrudes from the lower surface of the load-bearing body. Because the mounting area is eccentrically positioned and relatively close to the first end of the load-bearing body in the first direction, i.e., the mounting area is relatively close to the end where the drive wheel is located, the center line of gravity of the vehicle after installation is close to the drive wheel. This prevents the drive wheel from slipping and allows the driven wheel to be provided only on one side of the drive wheel, resulting in a simpler structure compared to the prior art. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the main structure of the conveying device in this embodiment;

[0050] Figure 2 This is a three-dimensional structural diagram of the motion chassis in one direction in this embodiment;

[0051] Figure 3 This is a three-dimensional structural diagram of the motion chassis in another direction in this embodiment;

[0052] Figure 4 This is a schematic diagram of the motion trajectory of the chassis turning in place in this embodiment;

[0053] Figure 5 This is a schematic diagram of the motion trajectory of the chassis turning in an arc in this embodiment;

[0054] Figure 6 This is a schematic diagram of the counterweight installation structure in this embodiment;

[0055] Figure 7This is a three-dimensional structural diagram of the supporting body in this embodiment.

[0056] Figure label:

[0057] 100. Transport device; 100a. Motion chassis;

[0058] 10. Load-bearing main body; 101. Installation area; 11. Counterbalance bin; 111. Stop bar; 112. Bolts and fasteners; 12. Storage bin; 13. Base plate; 14. Main side beam; 15. Auxiliary side beam; 16. First reinforcing beam; 17. Second reinforcing beam;

[0059] 20. Motion mechanism; 21. Drive wheel; 211. Connecting hole; 22. Driven wheel; 221. Connecting plate;

[0060] 30. Counterweight; 31. Balance plate; 311. Notch;

[0061] 40. Guide unit; 41. Guide wheel;

[0062] 100b, Gantry system. Detailed Implementation

[0063] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0064] This embodiment provides a simple moving chassis and a transport device that can prevent slippage.

[0065] Figure 1 This is a schematic diagram of the main structure of the conveying device in this embodiment; Figure 2 This is a three-dimensional structural diagram of the motion chassis in one direction in this embodiment; Figure 3 This is a three-dimensional structural diagram of the motion chassis in another direction in this embodiment.

[0066] See Figures 1 to 3This invention provides a transport device 100, which includes a motion chassis 100a for driving a vehicle. The motion chassis 100a includes a support body 10 and a motion mechanism 20. The support body 10 extends in a plane defined by a first direction and a second direction that are perpendicular to each other, and has a mounting area 101 for mounting the vehicle. The mounting area 101 is eccentrically disposed relative to the centerline of the support body 10 in the first direction and is relatively close to a first end of the support body 10 in the first direction. The motion mechanism 20 includes a drive wheel 21 and a driven wheel 22. The drive wheel 21 is rotatably disposed on the support body 10 and is relatively close to the first end of the support body 10 in the first direction, and part or all of the drive wheel 21 protrudes from the lower surface of the support body 10. The driven wheel 22 is disposed on the support body 10 and is relatively close to a second end of the support body 10 in the first direction, and part or all of the driven wheel 22 protrudes from the lower surface of the support body 10.

[0067] Understandably, because the installation area 101 is eccentrically positioned and relatively close to the first end of the bearing body 10 in the first direction, i.e., the end where the drive wheel 21 is located, the center line of gravity of the vehicle after installation is close to the drive wheel 21. Most of the wheel pressure is on the drive wheel 21, which improves the grip between the drive wheel 21 and the ground, making it less prone to slippage during travel. When the vehicle is traveling in a straight line, the driven wheel may be slightly deflected due to the influence of the ground conditions, which may cause the drive wheel 21 to slip slightly, affecting the straight-line accuracy of the vehicle and resulting in a serpentine movement. The greater the grip of the drive wheel 21, the less likely this situation will occur. When the vehicle is changing direction, especially when changing from front-wheel drive to rear-wheel drive, the vehicle needs to make directional corrections due to the swing of the driven wheel 22. The greater the pressure on the drive wheel, the greater the correction acceleration, and the easier the correction. At the same time, it only requires the driven wheel 22 to be set on one side of the drive wheel 21, making the structure simpler compared to the prior art.

[0068] It should be noted that, Figure 2 The direction indicated by A in the diagram is the first direction. Figure 2 The direction indicated by B in the middle is the second direction.

[0069] In this embodiment, a plurality of connection holes 211 are provided at the installation area 101 of the support body 10, so that the support body 10 is connected to the carrier by bolts.

[0070] Figure 4 This is a schematic diagram of the motion trajectory of the chassis turning in place in this embodiment; Figure 5 This is a schematic diagram of the motion trajectory of the chassis turning in an arc in this embodiment.

[0071] Combination Figures 2 to 5As shown, the drive wheel 21 includes two sets of wheels spaced apart along the second direction. When the two sets of drive wheels 21 rotate in opposite directions and at the same speed, the moving chassis 100a turns in place, and at this time the center of rotation is located between the two sets of drive wheels 21.

[0072] In this embodiment, there are two drive wheels 21 and two driven wheels 22. The two drive wheels 21 and the two driven wheels 22 are respectively arranged at intervals along the second direction. Each drive wheel 21 is connected to a drive motor and a servo controller, and the driven wheel 22 is a universal wheel.

[0073] It should be noted that when the motion chassis 100a moves, the control system sends commands to the servo controller, which in turn controls the two drive motors to operate, thereby driving the two drive wheels 21. When the two drive wheels 21 rotate in the same direction and at the same speed, the vehicle moves forward or backward; when the two drive wheels 21 rotate in opposite directions and at the same speed, the vehicle turns in place; when the two drive wheels 21 rotate in the same direction but at different speeds, the vehicle turns in an arc; and when the two drive wheels 21 rotate in opposite directions and at different speeds, the vehicle turns in a near-circular arc. The motion chassis 100a can execute different operating modes according to working conditions and scenario requirements to improve efficiency.

[0074] Figure 6 This is a schematic diagram of the counterweight installation structure in this embodiment.

[0075] Combination Figure 6 As shown, the load-bearing body 10 has symmetrically arranged counterweight chambers 11 at both ends in the second direction. The counterweight chambers 11 are relatively close to the second end of the load-bearing body 10 in the first direction, and the counterweight chambers 11 are configured to bear the counterweight 30.

[0076] Understandably, since the center of gravity of the vehicle after installation is close to the drive wheel 21, that is, close to the first end of the bearing body 10 in the first direction, the counterweight 11 is relatively close to the second end of the bearing body 10 in the first direction. The counterweight 30 in the counterweight 11 can balance the gravity exerted by the vehicle on the bearing body 10, thereby effectively preventing the bearing body 10 from tipping over and ensuring the stability of the bearing body 10 in supporting the vehicle.

[0077] Combination Figure 6 As shown, the counterweight 30 includes multiple counterweight plates 31, which are stacked in the counterweight chamber 11 along a first direction.

[0078] Understandably, since the installation area 101 and the counterweight chamber 11 are spaced apart relative to the first direction, the multiple counterweight plates 31 stacked in the counterweight chamber 11 along the first direction can better balance the gravity exerted by the vehicle on the load-bearing body 10, further ensuring the stability of the load-bearing body 10 supporting the vehicle.

[0079] In this embodiment, the balance plate 31 is designed with chamfers around its perimeter to avoid weld protrusions at the corners of various installation areas 101.

[0080] Combination Figure 6 As shown, the counterweight chamber 11 is also equipped with a retaining strip 111 and bolt fasteners 112. The retaining strip 111 is fixed to the outer side of the bottom of the counterweight chamber 11 and extends along a first direction. Each counterweight plate 31 has a notch 311 on its outer bottom end, and the notch 311 on each counterweight plate 31 abuts against the retaining strip 111. The bolt fasteners 112 are configured to pass through each counterweight plate 31 along a second direction and connect to the load-bearing body 10.

[0081] Understandably, by abutting against the notch 311 of each balance plate 31, each balance plate 31 can be positioned in the balance chamber 11, and each balance plate 31 can be fixed to the bearing body 10 by bolt fasteners 112. This enables the fixed installation of each balance plate 31 in the balance chamber 11, and the installation and disassembly are convenient, so that the number of balance plates 31 can be increased or decreased according to the vehicle model expansion needs.

[0082] Combination Figure 3 As shown, the supporting body 10 is provided with receiving chambers 12, the number of which matches the number of driven wheels 22. The receiving chambers 12 are located relatively close to the second end of the supporting body 10 in the first direction, and the driven wheels 22 are installed inside the receiving chambers 12. The top of the receiving chamber 12 has a first opening for the corresponding driven wheel 22 to be inserted into the receiving chamber 12, and the bottom of the receiving chamber 12 has a second opening for the corresponding driven wheel 22 to protrude from the lower surface of the supporting body 10. A connecting plate 221 is fixedly attached to the top of the driven wheel 22, abutting against the upper surface of the supporting body 10, and the connecting plate 221 is fixedly connected to the supporting body 10.

[0083] Understandably, this allows the driven wheel 22 to be inserted into the receiving chamber 12 through the first opening. During insertion, the abutting fit between the connecting plate 221 and the supporting body 10 restricts the insertion depth and ensures accurate insertion to the specified depth. After insertion, the driven wheel 22 is installed in the receiving chamber 12 through the fixed connection between the connecting plate 221 and the supporting body 10. This allows the driven wheel 22 to be installed into the receiving chamber 12 from top to bottom, resulting in good assembly processability and avoiding problems such as crane frame and hole alignment difficulties that occur when using the bottom-up installation method. The installation efficiency is effectively improved.

[0084] In this embodiment, the connecting plate 221 is mounted on the upper surface of the bearing body 10 and is connected to the bearing body 10 by bolts.

[0085] Combination Figure 2As shown, the motion chassis 100a also includes guide units 40, which are disposed at both ends of the support body 10 in the second direction. Each guide unit 40 includes at least one guide wheel 41, which is rotatably mounted on the support body 10, and part or all of the guide wheel 41 protrudes from the side of the support body 10 in the second direction. The plane of rotation of the guide wheel 41 is parallel to the plane defined by the first and second directions.

[0086] Understandably, when the tunnel is too narrow, the guide wheel 41 cooperates with the tunnel guide rail, and the guide wheel 41 moves within the guide rail, so that the moving chassis 100a can be used in the working environment of moving in narrow tunnels.

[0087] In this embodiment, there are four guide wheels 41, which are arranged in pairs at both ends of the support body 10 in the second direction.

[0088] Figure 7 This is a three-dimensional structural diagram of the supporting body in this embodiment.

[0089] Combination Figure 7 As shown, the supporting body 10 includes a base plate 13, at least two main side beams 14, and at least two auxiliary side beams 15. The at least two main side beams 14 are fixed to the upper surface of the base plate 13 and spaced apart along a second direction, while the main side beams 14 extend along a first direction. The at least two auxiliary side beams 15 are fixed to the upper surface of the base plate 13 and spaced apart along the first direction, while the main side beams 14 extend along a second direction. Each auxiliary side beam 15 is fixedly connected to all the main side beams 14.

[0090] Understandably, the main side beam 14, the auxiliary side beam 15, and the bottom plate 13 form a box-shaped structure. The box-shaped structure has a significant strengthening effect on the load-bearing capacity of the main body 10, thereby enabling the main body 10 to have a large load-bearing capacity.

[0091] In this embodiment, the main side beam 14 and the bottom plate 13 form two "I"-shaped structures on both sides of the load-bearing body 10 in the second direction, which play a strong longitudinal load-bearing role. The front of the "I"-shaped structure is connected to the drive wheel 21 and the rear is connected to the driven wheel 22.

[0092] Combination Figure 7As shown, the supporting body 10 also includes at least one first reinforcing beam 16 and at least one second reinforcing beam 17. At least one first reinforcing beam 16 is fixed to the upper surface of the base plate 13 and located between the two outermost auxiliary side beams 15. The first reinforcing beam 16 extends along a second direction, and each first reinforcing beam 16 is fixedly connected to all the main side beams 14. At least one second reinforcing beam 17 is fixed to the upper surface of the base plate 13 and located between the two outermost main side beams 14. The second reinforcing beam 17 extends along a first direction, and each second reinforcing beam 17 is fixedly connected to all the auxiliary side beams 15. Each first reinforcing beam 16 is fixedly connected to all the second reinforcing beams 17.

[0093] Understandably, the first reinforcing beam 16, the second reinforcing beam 17, the main side beam 14, and the auxiliary side beam 15 divide the load-bearing body 10 into multiple areas, further forming a box-shaped structure, thereby further enhancing the load-bearing capacity of the load-bearing body 10.

[0094] In this embodiment, the first reinforcing beam 16 is connected to two I-shaped structures, serving as a lateral load-bearing component.

[0095] Combination Figures 1 to 2 As shown, the conveying device 100 also includes a gantry system 100b, which is installed in the mounting area 101. The proximal side of the mounting area 101 relative to the first direction is the front side of the conveying device 100.

[0096] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A motion chassis for driving a vehicle, characterized in that, include: The supporting body (10) extends in a plane defined by a first direction and a second direction that are perpendicular to each other, and has a mounting area (101) for mounting the vehicle. The installation area (101) is eccentrically positioned relative to the centerline of the support body (10) in the first direction and is relatively close to the first end of the support body (10) located in the first direction. as well as The motion mechanism (20) includes: A drive wheel (21) is rotatably mounted on the support body (10) and relatively close to a first end of the support body (10) located in the first direction; part or all of the drive wheel (21) protrudes from the lower surface of the support body (10); and A driven wheel (22) is disposed on the support body (10) and relatively close to the second end of the support body (10) in the first direction, and part or all of the driven wheel (22) protrudes from the lower surface of the support body (10).

2. The motion chassis according to claim 1, characterized in that, The drive wheels (21) include two sets spaced apart along the second direction. When the two sets of drive wheels (21) rotate in opposite directions and at the same speed, the motion chassis turns, and at this time the center of rotation is located between the two sets of drive wheels (21).

3. The motion chassis according to claim 1, characterized in that, The supporting body (10) has symmetrically arranged counterweights (11) at both ends in the second direction, and the counterweights (11) are relatively close to the second end of the supporting body (10) in the first direction. The counterweight bin (11) is configured to carry the counterweight (30).

4. The motion chassis according to claim 3, characterized in that, The counterweight (30) includes a plurality of counterweight plates (31), which are stacked in the counterweight chamber (11) along the first direction.

5. The motion chassis according to claim 4, characterized in that, The counterweight chamber (11) is also equipped with baffles (111) and bolt fasteners (112). The baffle (111) is fixed to the outer side of the bottom of the counterweight bin (11) and extends along the first direction. Each counterweight plate (31) has a notch (311) on the outer side of its bottom end. The notch (311) on each counterweight plate (31) abuts against the baffle (111). The bolt fastener (112) is configured to pass through each of the balance plates (31) along the second direction and connect to the bearing body (10).

6. The motion chassis according to any one of claims 1-5, characterized in that, The supporting body (10) is provided with a receiving compartment (12), and the number of the receiving compartments (12) is consistent with the number of the driven wheels (22). The receiving compartment (12) is located relatively close to the second end of the supporting body (10) in the first direction, and the driven wheel (22) is installed inside the receiving compartment (12). The top of the receiving compartment (12) has a first opening for the corresponding driven wheel (22) to be inserted into the receiving compartment (12), and the bottom of the receiving compartment (12) has a second opening for the corresponding driven wheel (22) to protrude from the lower surface of the supporting body (10). The driven wheel (22) has a connecting plate (221) fixed to its top, which abuts against the upper surface of the bearing body (10), and the connecting plate (221) is fixedly connected to the bearing body (10).

7. The motion chassis according to any one of claims 1-5, characterized in that, Also includes: Guide units (40) are disposed at both ends of the support body (10) in the second direction. The guide unit (40) includes at least one guide wheel (41), which is rotatably mounted on the support body (10), and part or all of the guide wheel (41) protrudes from the side of the support body (10) in the second direction. The rotation plane of the guide wheel (41) is parallel to the plane defined by the first direction and the second direction.

8. The motion chassis according to any one of claims 1-5, characterized in that, The supporting body (10) includes: Base plate (13); At least two main side beams (14) are fixed to the upper surface of the base plate (13) and spaced apart along the second direction, the main side beams (14) extending along the first direction; and At least two auxiliary side beams (15) are fixed to the upper surface of the base plate (13) and spaced apart along the first direction, and the main side beam (14) extends along the second direction. Each of the auxiliary side beams (15) is fixedly connected to all of the main side beams (14).

9. The motion chassis according to claim 8, characterized in that, The supporting body (10) also includes: At least one first reinforcing beam (16) is fixed to the upper surface of the base plate (13) and located between the two outermost auxiliary side beams (15). The first reinforcing beam (16) extends along the second direction, and each first reinforcing beam (16) is fixedly connected to all of the main side beams (14); and At least one second reinforcing beam (17) is fixed to the upper surface of the base plate (13) and located between the two outermost main side beams (14). The second reinforcing beam (17) extends along the first direction, and each second reinforcing beam (17) is fixedly connected to all of the auxiliary side beams (15). Each of the first reinforcing beams (16) is fixedly connected to all of the second reinforcing beams (17).

10. A conveying device, characterized in that, include: The motion chassis (100a) is the motion chassis as described in any one of claims 1-9; as well as A gantry system (100b) is installed in the mounting area (101), with the proximal side of the mounting area (101) relative to the first direction being the front side of the conveying device.

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