CN116923550A - Transport vehicle chassis and AGV dolly - Google Patents
Transport vehicle chassis and AGV dolly Download PDFInfo
- Publication number
- CN116923550A CN116923550A CN202210341538.3A CN202210341538A CN116923550A CN 116923550 A CN116923550 A CN 116923550A CN 202210341538 A CN202210341538 A CN 202210341538A CN 116923550 A CN116923550 A CN 116923550A
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- Prior art keywords
- frame
- wheel assembly
- state
- transport vehicle
- vehicle chassis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000008878 coupling Effects 0.000 claims abstract description 57
- 238000010168 coupling process Methods 0.000 claims abstract description 57
- 238000005859 coupling reaction Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/12—Understructures, i.e. chassis frame on which a vehicle body may be mounted assembled from readily detachable parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/02—Motor vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The embodiment of the invention provides a vehicle chassis and an AGV (automatic guided vehicle), wherein the vehicle chassis comprises a frame, a wheel assembly, a fastener and a second coupling part, and the wheel assembly is detachably connected to the frame and has a first state, a second state and a third state relative to the frame; the wheel assembly includes a first coupling portion; in a first state, the fastener fixedly mounts the wheel assembly to the frame; the second coupling part is arranged on the frame, and in the second state, the first coupling part is pivoted with the second coupling part so that the wheel assembly is switched to a third state after being overturned relative to the frame, wherein in the third state, at least part of the wheel assembly is exposed out of the top surface of the frame. The wheel assembly can be maintained on the top surface of the frame without lifting the whole frame, and the maintenance is performed on the bottom surface of the frame, so that the maintenance difficulty and cost are reduced, and the maintenance efficiency is improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a chassis of a transport vehicle and an AGV.
Background
AGV (Automated Guided Vehicle) trolley is a transport vehicle with various transfer functions. However, in the related art, the wheel assemblies of the trolley are usually maintained from below after the whole vehicle is lifted, and there are problems of inconvenience in operation and high maintenance cost.
Disclosure of Invention
The embodiment of the invention provides a transport vehicle chassis and an AGV (automatic guided vehicle) convenient to maintain.
The transport vehicle chassis comprises a frame, a wheel assembly, a fastener and a second coupling part, wherein the wheel assembly is detachably connected to the frame, and the wheel assembly is provided with the first coupling part; the fastener is used for fixedly mounting the wheel assembly on the frame; the second coupling part is arranged on the frame, and the first coupling part is used for being rotatably connected with the second coupling part, so that the wheel assembly can turn over relative to the frame, and at least part of the wheel assembly is exposed out of the top surface of the frame.
According to some embodiments of the invention, the wheel assembly has a first state, a second state, and a third state relative to the frame;
in the first state, the fastener fixedly connects the wheel assembly and the frame;
in the second state, the first coupling part is rotatably connected with the second coupling part;
in the third state, at least a portion of the wheel assembly is exposed at the top surface of the frame.
According to some embodiments of the invention, the wheel assembly is moved in a first direction and a second direction sequentially relative to the frame during the switching from the first state to the second state.
According to some embodiments of the invention, the second coupling part comprises:
the sliding section is provided with an inclined plane;
the rotating fit section is arranged at one end of the sliding section and is used for being rotatably connected with the first connecting part; wherein, in the process of switching from the first state to the second state, the inclined surface is used for abutting against the first coupling part and guiding the wheel assembly to slide to the rotating fit section;
and the limiting section is connected with the rotating fit section and is used for limiting the first connecting part to the rotating fit section.
According to some embodiments of the invention, the rotating fit section has a groove, the wall of which is connected with the inclined surface;
the groove is rotatably connected with the first connecting part.
According to some embodiments of the invention, in the first state, the first coupling portion is not in contact with the second coupling portion.
According to some embodiments of the invention, the frame has a chamber that accommodates the wheel assembly of the portion in the first state and the second state;
the wall of the chamber has an opening through which the wheel assembly is flipped from the second state to the third state.
According to some embodiments of the invention, the wheel assembly is mounted to an inner wall surface of the chamber, and a junction of the wheel assembly and the inner wall surface of the chamber is adjacent an edge of the opening.
According to some embodiments of the invention, the wheel assembly comprises:
the mounting frame is detachably connected to the frame, and in the first state, the fastening piece is used for fixedly mounting the mounting frame on the frame;
a wheel rotatably coupled to the mounting frame;
the driving mechanism is arranged on the mounting frame and used for driving the wheels to rotate and/or turn;
in the third state, the wheels and the driving mechanism are exposed out of the top surface of the frame.
The AGV trolley comprises the transport vehicle chassis.
One embodiment of the above invention has at least the following advantages or benefits:
according to the transport vehicle chassis provided by the embodiment of the invention, the wheel assembly can be turned over relative to the frame through the design that the first connecting part and the second connecting part are rotatably connected, so that at least part of the wheel assembly is exposed out of the top surface of the frame, and therefore, the wheel assembly can be maintained on the top surface of the frame without lifting the whole frame, and then the maintenance is carried out on the bottom surface of the frame, thereby not only reducing the maintenance difficulty and cost, but also improving the maintenance efficiency.
Drawings
FIG. 1 is a schematic illustration of a wheel assembly according to an embodiment of the present invention in a first state, with portions of the frame structure removed to reveal the wheel assembly.
FIG. 2 is a schematic illustration of the rear wheel assembly with the frame removed with a portion of the frame structure removed to reveal the wheel assembly in accordance with an embodiment of the present invention.
FIG. 3 is a schematic illustration of an embodiment of the present invention with a wheel assembly in a second state, wherein a portion of the frame structure is removed to reveal the wheel assembly.
FIG. 4 is a schematic illustration of a wheel assembly in a third state, with portions of the frame structure removed to reveal the wheel assembly, according to an embodiment of the present invention.
Fig. 5 shows an exploded view of a chassis of a transport vehicle according to an embodiment of the invention.
Wherein reference numerals are as follows:
1. frame of bicycle
11. Chamber chamber
111. An opening
12. Frame body
13. Connecting plate
2. Wheel assembly
21. First coupling part
22. Mounting rack
23. Wheel of vehicle
24. Driving mechanism
3. Fastening piece
4. Second coupling part
41. Sliding section
411. Inclined plane
42. Rotating fit section
421. Groove
43. Spacing section
D1, first direction
D2, second direction
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
In the related art, the wheel assembly of the AGV is not directly mounted on the upper surface of the frame due to safety considerations. In addition, as the AGV trolley needs to lift the vehicle carrying plate and the vehicle frequently in the working process, the frame is greatly stressed in the lifting process, and if the wheel assembly is arranged on the upper surface of the frame, the frame can be stressed and deformed. Therefore, the wheel assemblies of the AGV of the related art are typically housed within the frame. However, as described in the background art, when the wheel assembly of the vehicle is required to be repaired, only the entire vehicle can be lifted, and the wheel assembly of the cart is repaired from below, which has problems of inconvenient operation and high maintenance cost.
As shown in fig. 1-5, fig. 1 is a schematic view of a wheel assembly 2 according to an embodiment of the present invention in a first state, wherein a portion of the frame 1 structure is removed to reveal the wheel assembly 2. Fig. 2 is a schematic view of the wheel assembly 2 and frame 1 with the fasteners 3 removed, with portions of the frame 1 structure removed to reveal the wheel assembly 2, in accordance with an embodiment of the present invention. Fig. 3 shows a schematic view of the wheel assembly 2 according to an embodiment of the invention in a second state, wherein part of the frame 1 structure is removed to reveal the wheel assembly 2. Fig. 4 is a schematic view of the wheel assembly 2 of an embodiment of the present invention in a third state, wherein a portion of the frame 1 structure is removed to reveal the wheel assembly 2. Fig. 5 shows an exploded view of a chassis of a transport vehicle according to an embodiment of the invention.
The transport vehicle chassis of the embodiment of the invention comprises a frame 1, a wheel assembly 2, a fastener 3 and a second coupling part 4. The wheel assembly 2 is detachably connected to the frame 1, the wheel assembly 2 comprising a first coupling portion 21; the fastener 3 is used for fixedly mounting the wheel assembly 2 on the frame 1; the second coupling portion 4 is disposed on the frame 1, and the first coupling portion 21 is configured to be rotatably connected with the second coupling portion 4, so that the wheel assembly 2 can be turned relative to the frame 1, and at least a portion of the wheel assembly 2 is exposed from the top surface of the frame 1.
It will be understood that the terms "comprising," "including," and "having," and any variations thereof, are intended to cover non-exclusive inclusions in the embodiments of the invention. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
In one embodiment, the wheel assembly 2 has a first state, a second state and a third state relative to the frame 1. In the first state, the fastener 3 secures the fifth wheel assembly 2 and the frame 1 (shown in FIG. 1). In the second state, the first coupling part 21 is rotatably connected with the second coupling part 4 (as shown in fig. 3). In the third state, at least a portion of the wheel assembly 2 is exposed from the top surface of the frame 1 (as shown in fig. 4).
The transport vehicle chassis of the embodiment of the invention, the wheel assembly 2 can be switched from the first state to the second state and then from the second state to the third state. In the first state, the wheel assembly 2 can be fixedly mounted on the frame 1 by means of the fastening members 3, the wheel assembly 2 functioning as a steering wheel and/or a driving wheel. In the third state, at least a portion of the wheel assembly 2 is exposed to the top surface of the frame 1, so that the wheel assembly 2 can be serviced on the top surface of the frame 1.
Of course, in another embodiment, the wheel assembly 2 has two states relative to the frame 1, one of which the fastener 3 fixedly connects the wheel assembly 2 and the frame 1, and the first coupling portion 21 is rotatably connected with the second coupling portion 4. In another state, at least part of the wheel assembly 2 is exposed at the top surface of the frame 1. That is, the first state and the second state of the above-described embodiment are combined into one state in which the wheel assembly 2 and the frame 1 are fixedly connected, and the first coupling portion 21 is in contact with the second coupling portion 4.
It will be appreciated that the wheel assembly 2 of the present embodiment may be a steering wheel. Of course, other wheel assemblies 2 that function as drive/steering wheels are possible.
The frame 1 comprises a frame body 12 and two connecting plates 13, wherein the two connecting plates 13 are arranged on the top surface of the frame body 12 at intervals, the frame body 12 and the two connecting plates 13 jointly form a chamber 11, and in a first state and a second state, the chamber 11 accommodates part of the wheel assembly 2
The wall of the chamber 11 has an opening 111 through which the wheel assembly 2 is turned from the second state to the third state.
In the present embodiment, the opening 111 is provided between the two connection plates 13.
The wheel assembly 2 is mounted on the inner wall surface of the chamber 11, and the junction of the wheel assembly 2 and the inner wall surface of the chamber 11 is adjacent to the edge of the opening 111.
In the present embodiment, the wheel assembly 2 is attached to the inner wall surfaces of the two attachment plates 13 by the fasteners 3.
In one embodiment, the fastener 3 may be a screw. Corresponding screw holes are formed in the wheel assembly 2 and the connecting plate 13, and screws penetrate through the screw holes of the wheel assembly 2 and the connecting plate 13, so that the wheel assembly 2 and the connecting plate 13 are fixedly connected.
The wheel assembly 2 comprises a mounting frame 22, wheels 23 and a drive mechanism 24. The mounting frame 22 is detachably connected to the frame 1, and in a first state the fastening members 3 fixedly mount the mounting frame 22 to the frame 1. Specifically, the fastener 3 fixedly mounts the mount 22 to the inner wall surface of the connection plate 13.
The wheel 23 is rotatably connected to the mounting frame 22. A drive mechanism 24 is provided on the mounting frame 22 for driving the wheels 23 in rotation and/or steering. In the third state, both the wheel 23 and the drive mechanism 24 are exposed from the top surface of the frame 1.
In the first state and the second state, part of the wheels 23 is exposed to the bottom surface of the frame 1.
As shown in fig. 1, when the wheel assembly 2 is in the first state, the wheel assembly 2 is fixedly connected with the frame 1, and the wheel assembly 2 can perform driving and/or steering functions. In the first state, the first coupling portion 21 is not in contact with the second coupling portion 4.
As shown in fig. 2 and 3, the wheel assembly 2 moves in the first direction D1 and the second direction D2 in sequence with respect to the frame 1 during the switching from the first state to the second state.
As an example, when maintenance of the wheel assembly 2 is required, the frame 1 may be lifted up a small distance, for example, by lifting the frame 1 with a small jack, so that the wheels 23 of the wheel assembly 2 are separated from the ground a small distance and are in a suspended state. The fastener 3 is then removed to allow the wheel assembly 2 to move by its own weight in the first direction D1 until the first coupling portion 21 of the wheel assembly 2 contacts the second coupling portion 4 (as shown in fig. 2).
Then, the wheel assembly 2 is moved in the second direction D2 again until the wheel assembly 2 is offset from the connection plate 13, so that the wheel assembly 2 can be switched from the second state to the third state through the opening 111.
That is, in the process of switching the wheel assembly 2 from the first state to the second state, the wheel assembly 2 moves along the first direction D1 to disengage from the connecting plate 13, and then moves along the second direction D2 to laterally stagger the wheel assembly 2 and the connecting plate 13, so as to avoid the overturning action of the wheel assembly 2 blocked by the connecting plate 13.
In an embodiment, the first direction D1 is along a vertical direction, and an included angle between the second direction D2 and the first direction D1 is an obtuse angle. That is, the wheel assembly 2 moves downward in the vertical direction and then moves downward in the inclined direction.
Of course, it is understood that during the switching from the first state to the second state, the wheel assembly 2 may also be moved only in the second direction D2 until it is moved to the second state. For example, in the first state, the first coupling portion 21 is in contact with the second coupling portion 4, and when the fastener 3 is removed, the wheel assembly 2 moves directly in the second direction D2 by its own weight to the second state.
Furthermore, the path of movement of the wheel assembly 2 is not linear, but may be curved, for example. The specific moving direction and moving path may be determined according to the spatial position inside the frame 1, and it is sufficient that the wheel assembly 2 can be switched from the second state to the third state through the opening 111, which is not particularly limited in the present invention.
The second coupling part 4 comprises a sliding section 41 for abutment with the first coupling part 21 such that the wheel assembly 2 can slide along the second direction D2, and a running fit section 42 for rotatable connection with the first coupling part 21 such that the wheel assembly 2 can be flipped from the second state to the third state.
The sliding section 41 has a slope 411, and the slope 411 is parallel to the second direction D2. The rotation fitting section 42 is provided at one end of the sliding section 41 for rotatable connection with the first coupling portion 21. The inclined surface 411 is used to abut against the first coupling portion 21 and guide the wheel assembly 2 to slide toward the rotating engagement section 42 during switching from the first state to the second state. When the fastener 3 is removed, the wheel assembly 2 sinks by its own weight until the first coupling portion 21 comes into contact with the inclined surface 411 of the slide segment 41. Thereafter, the first coupling portion 21 is slidably engaged with the inclined surface 411 such that the wheel assembly 2 is slid along the inclined surface 411 in the direction of the running fit section 42 until the first coupling portion 21 is slid to the running fit section 42.
Of course, the inclined surface 411 of the slide segment 41 may be replaced with a guide groove extending in the second direction D2.
The second coupling part 4 further comprises a limiting section 43, the limiting section 43 being connected with the running fit section 42 for limiting the first coupling part 21 at the running fit section 42. The running fit section 42 is provided between the ends of the slide section 41 and the limit section 43. The first coupling portion 21 may be a pivot, and the rotation-fit section 42 has a groove 421, the groove 421 being rotatably connected to the first coupling portion 21, and a groove wall of the groove 421 being connected to the inclined surface 411. The limiting section 43 prevents the first coupling portion 21 from being removed from the groove 421.
In another aspect of the present invention, there is also provided an AGV including the transport vehicle chassis of any of the embodiments described above. The AGV trolley according to the embodiment of the present invention has the advantages and benefits of any of the embodiments described above, and is not described in detail herein.
It will be appreciated that the various embodiments/implementations provided by the invention may be combined with one another without conflict and are not illustrated here.
In summary, the chassis of the transport vehicle and the AGV according to the embodiment of the invention have the advantages and beneficial effects that at least:
through the design of switching the wheel assembly 2 to the third state, at least part of the wheel assembly 2 is exposed out of the top surface of the frame 1, so that the wheel assembly 2 can be maintained on the top surface of the frame 1, and the whole frame 1 does not need to be lifted, and then the maintenance is performed on the bottom surface of the frame 1, thereby not only reducing the maintenance difficulty and cost, but also improving the maintenance efficiency.
In the inventive embodiments, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments of the invention will be understood by those skilled in the art according to the specific circumstances.
In the description of the embodiments of the invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the invention and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the invention.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the invention and is not intended to limit the embodiment of the invention, and various modifications and variations can be made to the embodiment of the invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims (10)
1. A transport vehicle chassis, comprising:
a frame;
the wheel assembly is detachably connected to the frame and is provided with a first connecting part;
a fastener for fixedly mounting the wheel assembly to the frame;
and the second coupling part is arranged on the frame, and the first coupling part is used for being rotatably connected with the second coupling part so that the wheel assembly can be overturned relative to the frame, and at least part of the wheel assembly is exposed out of the top surface of the frame.
2. The transport vehicle chassis of claim 1, wherein the wheel assembly has a first state, a second state, and a third state relative to the frame;
in the first state, the fastener fixedly connects the wheel assembly and the frame;
in the second state, the first coupling part is rotatably connected with the second coupling part;
in the third state, at least a portion of the wheel assembly is exposed at the top surface of the frame.
3. The transport vehicle chassis of claim 2, wherein the wheel assembly moves in a first direction and a second direction relative to the frame in sequence during the transition from the first state to the second state.
4. The transport vehicle chassis of claim 2, wherein the second coupling portion comprises:
the sliding section is provided with an inclined plane;
the rotating fit section is arranged at one end of the sliding section and is used for being rotatably connected with the first connecting part; wherein, in the process of switching from the first state to the second state, the inclined surface is used for abutting against the first coupling part and guiding the wheel assembly to slide to the rotating fit section;
and the limiting section is connected with the rotating fit section and is used for limiting the first connecting part to the rotating fit section.
5. The transport vehicle chassis of claim 4, wherein the running fit section has a groove, a wall of the groove being connected to the ramp;
the groove is rotatably connected with the first connecting part.
6. The transport vehicle chassis of claim 2, wherein in the first state, the first coupling portion is not in contact with the second coupling portion.
7. The transport vehicle chassis of claim 2, wherein the frame has a chamber that receives the wheel assembly of the portion in the first and second states;
the wall of the chamber has an opening through which the wheel assembly is flipped from the second state to the third state.
8. The transport vehicle chassis of claim 7, wherein the wheel assembly is mounted to an interior wall surface of the chamber and a junction of the wheel assembly and the interior wall surface of the chamber is adjacent an edge of the opening.
9. The transport vehicle chassis of claim 2, wherein the wheel assembly comprises:
the mounting frame is detachably connected to the frame, and in the first state, the fastening piece is used for fixedly mounting the mounting frame on the frame;
a wheel rotatably coupled to the mounting frame;
the driving mechanism is arranged on the mounting frame and used for driving the wheels to rotate and/or turn;
in the third state, the wheels and the driving mechanism are exposed out of the top surface of the frame.
10. An AGV trolley comprising a transport vehicle chassis according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210341538.3A CN116923550A (en) | 2022-03-29 | 2022-03-29 | Transport vehicle chassis and AGV dolly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210341538.3A CN116923550A (en) | 2022-03-29 | 2022-03-29 | Transport vehicle chassis and AGV dolly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116923550A true CN116923550A (en) | 2023-10-24 |
Family
ID=88376046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210341538.3A Pending CN116923550A (en) | 2022-03-29 | 2022-03-29 | Transport vehicle chassis and AGV dolly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116923550A (en) |
-
2022
- 2022-03-29 CN CN202210341538.3A patent/CN116923550A/en active Pending
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