CN115195905A - AGV system and power drive device - Google Patents

AGV system and power drive device Download PDF

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Publication number
CN115195905A
CN115195905A CN202110377496.4A CN202110377496A CN115195905A CN 115195905 A CN115195905 A CN 115195905A CN 202110377496 A CN202110377496 A CN 202110377496A CN 115195905 A CN115195905 A CN 115195905A
Authority
CN
China
Prior art keywords
gear
assembly
mounting
reduction
wheel assembly
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
Application number
CN202110377496.4A
Other languages
Chinese (zh)
Inventor
王鑫
刘志高
葛远
陈思意
卢振伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Bozhilin Robot Co Ltd
Original Assignee
Guangdong Bozhilin Robot Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Bozhilin Robot Co Ltd filed Critical Guangdong Bozhilin Robot Co Ltd
Priority to CN202110377496.4A priority Critical patent/CN115195905A/en
Publication of CN115195905A publication Critical patent/CN115195905A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D63/00Motor vehicles or trailers not otherwise provided for
    • B62D63/02Motor vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle

Abstract

The invention relates to an AGV system and a power driving device. The power drive device includes: the vehicle wheel assembly comprises a wheel assembly, a speed reducing assembly, a signal processor and a power output piece, wherein the signal processor is electrically connected with the power output piece, the speed reducing assembly is located on the power output piece, the speed reducing assembly is in transmission fit with the power output piece, the wheel assembly is sleeved outside the speed reducing assembly, and the wheel assembly is circumferentially provided with a meshing piece in transmission fit with the speed reducing assembly. The power driving device can fully utilize the assembly space under the condition of ensuring normal power output.

Description

AGV system and power drive device
Technical Field
The invention relates to the technical field of power driving, in particular to an AGV system and a power driving device.
Background
With the development of AGVs (Automated Guided vehicles), the requirements for the drive system are becoming more and more stringent, for example: traditional actuating system includes parts such as motor, encoder, speed reducer, tire, often need utilize the bolt to connect corresponding two or more cooperation parts when carrying out the transmission for the waste appears in driven actuating system internal assembly space, leads to driven actuating system bulky promptly, influences the installation.
Disclosure of Invention
Accordingly, it is necessary to provide an AGV system and a power driving apparatus for solving the problem of wasted assembly space in a transmission driving system.
A power drive device. The power drive device includes: the vehicle wheel assembly comprises a wheel assembly, a speed reducing assembly, a signal processor and a power output piece, wherein the signal processor is electrically connected with the power output piece, the speed reducing assembly is located on the power output piece, the speed reducing assembly is in transmission fit with the power output piece, the wheel assembly is sleeved outside the speed reducing assembly, and the wheel assembly is circumferentially provided with a meshing piece in transmission fit with the speed reducing assembly.
The AGV system comprises the power driving device and an AGV chassis, wherein the power driving device is matched with the AGV chassis in an installation manner.
In one embodiment, the power driving device further comprises a first mounting baffle ring, the power output part comprises a motor shaft, a motor shell and a first transmission bearing, the motor shell is mounted and matched with the wheel assembly through the first mounting baffle ring, the first mounting baffle ring is used for being mounted and attached to one face of the speed reducing assembly, the first mounting baffle ring is mounted and attached to the wheel assembly, the first mounting bearing is mounted between the first mounting baffle ring and the wheel assembly, the motor shaft is rotatably mounted in the motor shell through the first transmission bearing, one end of the motor shaft is mounted and matched with the signal processor, and the other end of the motor shaft penetrates through the first mounting baffle ring and is mounted and matched with the speed reducing assembly.
In one embodiment, the power driving device further comprises a second mounting stop ring, the second mounting stop ring is used for being mounted and attached to the other surface of the speed reducing assembly, a second mounting bearing is arranged between the second mounting stop ring and the wheel assembly, and the second mounting stop ring is provided with a concave portion used for being fixed with an AGV chassis.
In one embodiment, the signal processor comprises an encoder, an adapter plate and a mounting shell, the encoder is mounted and matched with one surface of the adapter plate, an adapter hole for the motor shaft to pass through is formed in the adapter plate, the motor shaft is electrically connected with the encoder through the adapter hole, the other surface of the adapter plate is mounted and attached to the motor shell, the mounting shell covers the encoder, and the mounting shell and the adapter plate are fixed in the circumferential direction.
In one embodiment, the speed reduction assembly comprises a gear kit, a first gear mounting plate, a second transmission bearing, a speed reduction shaft and a transmission key, wherein the gear kit is rotatably installed between the first gear mounting plate and the second gear mounting plate, the first gear mounting plate is used for being abutted by the first installation retaining ring, the second gear mounting plate is used for being abutted by the second installation retaining ring, the speed reduction shaft is in transmission fit with the gear kit, the motor shaft passes through the second transmission bearing and is in transmission fit with the speed reduction shaft, and the motor shaft passes through the transmission key and is in transmission fit with the gear kit.
In one embodiment, the gear set includes a first planetary gear, a first reduction sun gear, a second planetary gear, and a second reduction sun gear, the first planetary gear and the first reduction sun gear are located between the first gear mounting plate and the second gear mounting plate, the motor shaft is in driving engagement with the first reduction sun gear through the drive key, the first reduction sun gear is in driving engagement with the engaging member through the first planetary gear, the second planetary gear and the second reduction sun gear are located between the first gear mounting plate and the second gear mounting plate, the second reduction sun gear is in driving engagement with the reduction shaft, and the second reduction sun gear is in driving engagement with the engaging member through the second planetary gear.
In one embodiment, the wheel assembly comprises a tire and a hub, the tire is sleeved outside the hub, and the engaging piece is arranged inside the hub along the circumferential direction of the hub.
In one embodiment, a connecting convex portion is provided along the circumferential direction of the tire, and a connecting concave portion corresponding to the connecting convex portion is provided on the hub along the circumferential direction of the hub.
In one embodiment, the wheel assembly further comprises a first encapsulating ring mounted on one side of the hub member and a second encapsulating ring mounted on the other side of the hub member.
When the power driving device is used, firstly, the size of the transmission gear on the speed reducing component and the installation number of the transmission gears are determined according to the size of the wheel component, namely, the wheel component can be fully contacted with the speed reducing component after the wheel component is sleeved on the speed reducing component. Furthermore, the speed reduction assembly is located on the power output part, so that the speed reduction assembly and the power output part are integrally formed, and the assembly space of the speed reduction assembly and the power output part is effectively reduced. For example: considering that the wheel assembly is driven to rotate along the axial direction of the wheel assembly by the speed reduction assembly, one end of the power output part can be electrically connected with the signal processor, and the other end of the power output part is assembled with the speed reduction assembly. The mounting mode makes full use of the axial space of the wheel assembly, so that the wheel assembly, the speed reduction assembly, the signal processor and the power output part are mounted more compactly. In addition, traditional actuating system can install the bolt additional between speed reduction subassembly and wheel subassembly and assist the installation, and above-mentioned power drive device drives wheel subassembly when the axle rotates is carried out to the speed reduction subassembly, and wheel subassembly is direct to be cooperated with speed reduction subassembly transmission through meshing piece to make the installation more convenient, also can practice thrift the inside fitting space of power drive device simultaneously. Therefore, the power driving device can fully utilize the assembly space under the condition of ensuring normal power output.
When the AGV system is used, the power driving device is matched with the AGV chassis in an installing mode, the power driving device drives the wheel assembly to rotate along the shaft when the speed reducing assembly drives the wheel assembly, the wheel assembly is directly matched with the speed reducing assembly in a transmission mode through the meshing piece, therefore, the AGV system is more convenient to install, and meanwhile, the assembling space inside the power driving device can be saved. The speed reduction assembly is positioned on the power output part, so that the integrated forming of the speed reduction assembly and the power output part is realized, and the assembly space of the speed reduction assembly and the power output part is effectively reduced. Therefore, the AGV system solves the problem of assembly space waste by using the power driving device.
Drawings
FIG. 1 is a schematic view of the internal structure of a power drive apparatus;
fig. 2 is an axial explosion schematic view of the power drive.
100. Wheel assembly, 101, engagement member, 110, first mounting collar, 120, first mounting bearing, 130, second mounting collar, 140, second mounting bearing, 150, tire, 151, coupling projection, 160, hub, 161, coupling recess, 170, first encapsulating ring, 180, second encapsulating ring, 200, reduction assembly, 210, gear kit, 211, first planetary gear, 212, first reduction sun gear, 213, second planetary gear, 214, second reduction sun gear, 220, first gear mounting plate, 230, second gear mounting plate, 240, second drive bearing, 250, reduction shaft, 300, signal processor, 310, encoder, 320, adapter plate, 330, mounting housing, 400, power take-off, 410, motor shaft, 420, motor housing, 430, first drive bearing.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 and 2, in one embodiment, the power driving apparatus includes: the vehicle wheel assembly comprises a wheel assembly 100, a speed reducing assembly 200, a signal processor 300 and a power output part 400, wherein the signal processor 300 is electrically connected with the power output part 400, the speed reducing assembly 200 is positioned on the power output part 400, the speed reducing assembly 200 is in transmission fit with the power output part 400, the wheel assembly 100 is sleeved outside the speed reducing assembly 200, and an engaging part 101 in transmission fit with the speed reducing assembly 200 is arranged on the wheel assembly 100 along the circumferential direction of the wheel assembly 100.
When the power driving device is used, firstly, the size of the transmission gear on the speed reducing component 200 and the installation number of the transmission gear are determined according to the size of the wheel component 100, namely, the wheel component 100 can be fully contacted with the speed reducing component 200 after the wheel component 100 is sleeved on the speed reducing component 200. Further, the speed reduction assembly 200 is located on the power output part 400, so that the speed reduction assembly 200 and the power output part 400 are integrally formed, and the assembling space of the speed reduction assembly 200 and the power output part 400 is effectively reduced. For example: considering that the wheel assembly 100 is driven by the speed reduction assembly 200 to rotate along the axial direction of the wheel assembly 100, one end of the power output 400 may be used for electrically connecting with the signal processor 300, and the other end of the power output 400 may be used for assembling with the speed reduction assembly 200. The above installation makes full use of the axial space of the wheel assembly 100, so that the wheel assembly 100, the reduction assembly 200, the signal processor 300 and the power output member 400 are more compactly installed. In addition, in the conventional driving system, bolts are additionally arranged between the speed reduction assembly 200 and the wheel assembly 100 for auxiliary installation, and when the speed reduction assembly 200 drives the wheel assembly 100 to rotate along the shaft in the power driving device, the wheel assembly 100 is directly in transmission fit with the speed reduction assembly 200 through the meshing part 101, so that the installation is more convenient, and meanwhile, the assembly space in the power driving device can be saved. Therefore, the power driving device can fully utilize the assembly space under the condition of ensuring normal power output. In one embodiment, the engagement member 101 is a tooth or ring.
Referring to fig. 1 and 2, in an embodiment, the power driving apparatus further includes a first mounting baffle ring 110, the power output member 400 includes a motor shaft 410, a motor housing 420 and a first transmission bearing 430, the motor housing 420 is mounted and matched with the wheel assembly 100 through the first mounting baffle ring 110, the first mounting baffle ring 110 is used for being mounted and matched with one surface of the speed reducing assembly 200, a first mounting bearing 120 is mounted between the first mounting baffle ring 110 and the wheel assembly 100, the motor shaft 410 is rotatably mounted in the motor housing 420 through the first transmission bearing 430, one end of the motor shaft 410 is mounted and matched with the signal processor 300, and the other end of the motor shaft 410 passes through the first mounting baffle ring 110 and is mounted and matched with the speed reducing assembly 200. Specifically, the speed reduction assembly 200 may be a speed reducer or a speed reducer. Considering that the motor housing 420 is affected by its own performance, the motor housing 420 often has irregular shape portions, and therefore, in order to ensure stable installation of the motor housing 420 and the wheel assembly 100, the first installation stopper ring 110 may be designed according to the shape of the end portion of the motor housing 420 (referring to the end of the motor housing 420 for assembling with the first installation stopper ring 110), and then the first installation stopper ring 110 is installed on the wheel assembly 100, so that the assembling effect of the motor housing 420 and the wheel assembly 100 is ensured. Further, in consideration of the force transmission accuracy of the power driving device and the compactness of the internal installation control, it is selected to add the first installation bearing 120 between the first installation baffle ring 110 and the wheel assembly 100, and in this embodiment, the first installation bearing 120 is located on the side of the wheel assembly 100 facing the motor housing 420.
Referring to fig. 1 and 2, in one embodiment, the power driving apparatus further includes a second mounting stop ring 130, the second mounting stop ring 130 is used for being mounted and attached to another surface of the speed reducing assembly 200, a second mounting bearing 140 is installed between the second mounting stop ring 130 and the wheel assembly 100, and the second mounting stop ring 130 is provided with a recess for being fixed to an AGV chassis. Specifically, when the power driving device is applied to the AGV chassis, the corresponding concave portion is arranged on the second mounting baffle ring 130, and further, the concave portion on the second mounting baffle ring 130 can be designed in a targeted manner according to the shape of the AGV chassis, so that the power driving device can be more conveniently mounted and matched with the AGV chassis.
In one embodiment, the shielding of the two corresponding sides of the speed reducing assembly 200 is achieved by the first mounting retainer ring 110 and the second mounting retainer ring 130, and meanwhile, the first mounting retainer ring 110 is in contact with the side portion of the wheel assembly 100 through the first mounting bearing 120, and the second mounting retainer ring 130 is in contact with the side portion of the wheel assembly 100 through the second mounting bearing 140, so that the speed reducing assembly 200 is packaged inside the wheel assembly 100, and external impurities are prevented from entering the speed reducing assembly 200.
Referring to fig. 1 and 2, in an embodiment, the signal processor 300 includes an encoder 310, an adapter plate 320 and a mounting housing 330, the encoder 310 is mounted and fitted on one surface of the adapter plate 320, an adapter hole for the motor shaft 410 to pass through is formed in the adapter plate 320, the motor shaft 410 is electrically connected to the encoder 310 through the adapter hole, the other surface of the adapter plate 320 is mounted and fitted to the motor housing 420, the mounting housing 330 is covered outside the encoder 310, and the mounting housing 330 is circumferentially fixed to the adapter plate 320. Specifically, the encoder 310 implements the encoding and conversion of signals (e.g., bit streams) or data. Considering that the encoder 310 itself is complicated in structure, the adapter board 320 may be designed specifically according to the actual shape of the encoder 310 to ensure the fixing effect of the adapter board 320 on the encoder 310. Meanwhile, the adapter board 320 is attached and fixed to the motor housing 420, that is, one surface of the adapter board 320 is attached to one surface of the motor housing 420, and this embodiment can ensure the fixing effect of the adapter board 320 and the motor housing 420, and can make the installation between the signal processor 300 and the motor housing 420 more compact. Further, the encoder 310 is wrapped by the mounting shell 330, so that on one hand, the overall stability of the power driving device can be improved, and on the other hand, external impurities can be prevented from entering the encoder 310.
Referring to fig. 1 and 2, in an embodiment, the reduction assembly 200 includes a gear kit 210, a first gear mounting plate 220, a second gear mounting plate 230, a second transmission bearing 240, a reduction shaft 250 and a transmission key, the gear kit 210 is rotatably installed between the first gear mounting plate 220 and the second gear mounting plate 230, the first gear mounting plate 220 is used for abutting against the first installation retainer ring 110, the second gear mounting plate 230 is used for abutting against the second installation retainer ring 130, the reduction shaft 250 is in transmission fit with the gear kit 210, the motor shaft 410 is in transmission fit with the reduction shaft 250 through the second transmission bearing 240, and the motor shaft 410 is in transmission fit with the gear kit 210 through the transmission key. Specifically, when the gear set 210 is installed between the first gear mounting plate 220 and the second gear mounting plate 230, one surface of the gear set 210 abuts against the plate surface of the first gear mounting plate 220, and the other surface of the gear set 210 abuts against the plate surface of the second gear mounting plate 230. Further, the motor shaft 410 realizes transmission of the reduction shaft 250 and the gear assembly 210 through the second transmission bearing 240 and the transmission key, and the above embodiment effectively saves the installation parts of the power driving device.
As shown in fig. 1 and 2, in one embodiment, the gear set 210 includes a first planetary gear 211, a first reduction sun gear 212, a second planetary gear 213 and a second reduction sun gear 214, the first planetary gear 211 and the first reduction sun gear 212 are located between the first gear mounting plate 220 and the second gear mounting plate 230, the motor shaft 410 is in transmission engagement with the first reduction sun gear 212 through the transmission key, the first reduction sun gear 212 is in transmission engagement with the engaging member 101 through the first planetary gear 211, the second planetary gear 213 and the second reduction sun gear 214 are located between the first gear mounting plate 220 and the second gear mounting plate 230, the second reduction sun gear 214 is in transmission engagement with the reduction shaft 250, and the second reduction sun gear 214 is in transmission engagement with the engaging member 101 through the second planetary gear 213. In particular, such an embodiment as described above can effectively ensure the torque and the torque of the power drive apparatus. In addition, the first planetary gear 211 and the first reduction sun gear 212 form a first reduction gear set, the second planetary gear 213 and the second reduction sun gear 214 form a second reduction gear set, the first reduction gear set is attached to the first gear mounting plate 220, and the second reduction gear set is attached to the second gear mounting plate. The installation mode can effectively improve the installation tightness of the gear sleeve 210.
Referring to fig. 1 and 2, in one embodiment, the wheel assembly 100 includes a tire 150 and a hub 160, the tire 150 is sleeved on the hub 160, and the engaging member 101 is disposed inside the hub 160 along the circumferential direction of the hub 160. A coupling protrusion 151 is provided along the circumferential direction of the tire 150, and a coupling recess 161 corresponding to the coupling protrusion 151 is provided on the hub 160 along the circumferential direction of the hub 160. In particular, the above embodiment can effectively ensure the sleeve fixing effect of the tire 150 and the hub 160.
Referring to fig. 1 and 2, in one embodiment, the wheel assembly 100 further includes a first packing ring 170 and a second packing ring 180, the first packing ring 170 being mounted on one side of the hub 160, and the second packing ring 180 being mounted on the other side of the hub 160. Specifically, considering that a plurality of components are stored inside the hub 160 when the power driving apparatus is assembled, the hub 160 is encapsulated by the first encapsulating ring 170 and the second encapsulating ring 180 after the components inside the hub 160 are assembled, thereby ensuring stable installation inside the hub 160.
In one embodiment, the AGV system comprises the power driving device and an AGV chassis, wherein the power driving device is matched with the AGV chassis in a mounting mode.
When the AGV system is used, the power driving device is matched with the AGV chassis in an installing mode, when the speed reducing assembly 200 drives the wheel assembly 100 to rotate along the shaft, the wheel assembly 100 is directly matched with the speed reducing assembly 200 in a transmission mode through the meshing part 101, and therefore the AGV system is more convenient to install and can save the assembling space inside the power driving device. The speed reduction assembly 200 is positioned on the power output part 400, so that the speed reduction assembly 200 and the power output part 400 are integrally formed, and the assembly space of the speed reduction assembly 200 and the power output part 400 is effectively reduced. Therefore, the AGV system solves the problem of assembly space waste by using the power driving device.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A power drive apparatus, characterized by comprising: the vehicle wheel assembly comprises a wheel assembly, a speed reducing assembly, a signal processor and a power output piece, wherein the signal processor is electrically connected with the power output piece, the speed reducing assembly is located on the power output piece, the speed reducing assembly is in transmission fit with the power output piece, the wheel assembly is sleeved outside the speed reducing assembly, and the wheel assembly is circumferentially provided with a meshing piece in transmission fit with the speed reducing assembly.
2. The power driving device according to claim 1, further comprising a first mounting baffle ring, wherein the power output member comprises a motor shaft, a motor housing and a first transmission bearing, the motor housing is mounted and matched with the wheel assembly through the first mounting baffle ring, the first mounting baffle ring is used for being mounted and attached to one surface of the speed reducing assembly, a first mounting bearing is mounted between the first mounting baffle ring and the wheel assembly, the motor shaft is rotatably mounted in the motor housing through the first transmission bearing, one end of the motor shaft is mounted and matched with the signal processor, and the other end of the motor shaft penetrates through the first mounting baffle ring and is mounted and matched with the speed reducing assembly.
3. The power drive of claim 2, further comprising a second mounting stop ring for mounting engagement with the other side of the speed reduction assembly, wherein a second mounting bearing is mounted between the second mounting stop ring and the wheel assembly, and wherein the second mounting stop ring is provided with a recess for securing to an AGV chassis.
4. The power driving device according to claim 2, wherein the signal processor comprises an encoder, an adapter plate and a mounting housing, the encoder is mounted and matched with one surface of the adapter plate, an adapter hole for the motor shaft to pass through is formed in the adapter plate, the motor shaft is electrically connected with the encoder through the adapter hole, the other surface of the adapter plate is mounted and attached to the motor housing, the mounting housing covers the encoder, and the mounting housing is circumferentially fixed to the adapter plate.
5. The power drive of claim 2, wherein the reduction assembly includes a gear assembly, a first gear mounting plate, a second transmission bearing, a reduction shaft and a transmission key, the gear assembly is rotatably mounted between the first gear mounting plate and the second gear mounting plate, the first gear mounting plate is used for abutting against the first mounting baffle ring, the second gear mounting plate is used for abutting against the second mounting baffle ring, the reduction shaft is in transmission fit with the gear assembly, the motor shaft is in transmission fit with the reduction shaft through the second transmission bearing, and the motor shaft is in transmission fit with the gear assembly through the transmission key.
6. The power drive of claim 5, wherein the gear assembly includes a first planetary gear, a first reduction sun gear, a second planetary gear, and a second reduction sun gear, the first planetary gear and the first reduction sun gear being located between the first gear mounting plate and the second gear mounting plate, the motor shaft being in driving engagement with the first reduction sun gear through the drive key, the first reduction sun gear being in driving engagement with the engagement member through the first planetary gear, the second planetary gear and the second reduction sun gear being located between the first gear mounting plate and the second gear mounting plate, the second reduction sun gear being in driving engagement with the reduction shaft, the second reduction sun gear being in driving engagement with the engagement member through the second planetary gear.
7. The power drive of claim 1, wherein the wheel assembly includes a tire and a hub, the tire is fitted around the hub, and the engaging member is provided inside the hub in a circumferential direction of the hub.
8. The power drive apparatus according to claim 7, characterized in that a connecting convex portion is provided along a circumferential direction of the tire, and a connecting concave portion corresponding to the connecting convex portion is provided on the hub along the circumferential direction of the hub.
9. The power drive of claim 7, wherein the wheel assembly further comprises a first encapsulating ring mounted on one side of the hub member and a second encapsulating ring mounted on the other side of the hub member.
10. An AGV system comprising a power drive according to any one of claims 1 to 9 and further comprising an AGV chassis, said power drive being mounted in cooperation with said AGV chassis.
CN202110377496.4A 2021-04-08 2021-04-08 AGV system and power drive device Pending CN115195905A (en)

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