CN210416220U - Quick detach formula agv drive wheel - Google Patents
Quick detach formula agv drive wheel Download PDFInfo
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- CN210416220U CN210416220U CN201921268522.4U CN201921268522U CN210416220U CN 210416220 U CN210416220 U CN 210416220U CN 201921268522 U CN201921268522 U CN 201921268522U CN 210416220 U CN210416220 U CN 210416220U
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Abstract
The utility model discloses a quick-release agv driving wheel, which comprises a wheel hub, an outer ring flange and a planetary gear speed reduction assembly; the hub is detachably and fixedly connected with the outer ring flange; the planetary gear speed reduction assembly is rotatably embedded in the outer ring flange; the planetary gear speed reduction assembly comprises a primary planetary gear assembly and a secondary planetary gear assembly which are arranged side by side, and the primary planetary gear assembly and the secondary planetary gear assembly rotate on the same axis. This agv drive wheel adopts convenient to detach's outer lane flange to separate rotatable parts and wheel hub, comes out through following the outer lane flange with wheel hub, can easily swiftly change wheel hub and rubber wholly, makes the change of rubber more laborsaving.
Description
Technical Field
The utility model relates to an agv drive wheel technical field, concretely relates to is a quick detach formula agv drive wheel.
Background
agv the trolley is a transportation vehicle which can run along the prescribed guide path and has the functions of safety protection and various transfer, because it has the characteristics of high automation degree, safety, flexibility, etc., it is widely used in the automatic production and storage system of automobile manufacture, machining, etc., it is one of the key equipments of the modern logistics storage system of flexible manufacturing production line and automatic three-dimensional warehouse, etc.
The agv rudder wheel assembly is adopted as the driving steering device of the future agv trolley, so that the driving steering device has better steering effect and steering stability, and the maintenance cost of the agv driving steering device can be reduced. agv the helm assembly is controlled by the driving motor to drive the driving wheel, the planetary gear speed-reducing component is set in the driving wheel, which can avoid the big transverse volume caused by the external speed reducer, and it is convenient to assemble or maintain.
But because the AGV dolly transports in intelligent factory, storage storehouse and unmanned logistics field and removes more frequently for adopt AGV drive wheel outer rubber very easily to wear and tear, so need often change the outer rubber of truckle in order to ensure AGV dolly's normal operating, and the rubber is generally difficult to follow hub and directly dismantle, therefore the producer is directly to distribute the rubber cover behind hub and use for the trade company.
Due to different structural design concepts, the agv driving wheel and agv steering wheel assembly in countries such as Europe, America and Japan are integrally arranged at present, so that the structure is firmer and more stable. When the agv driving wheel is disassembled, the agv steering wheel assembly needs to be disassembled integrally, and then the wheel hub of the agv driving wheel needs to be disassembled, so that the process is complicated, and the agv steering wheel assembly is easy to damage due to frequent disassembly and easy damage to the matching relation among the components.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides a quick detach formula agv drive wheel, the rotatable parts of its wheel hub and drive wheel adopts the detachably mode to come fixed connection, when wheel hub and rubber need to be changed, only need adopt instrument jack-up agv dollies such as jack, make agv drive wheel break away from ground, directly dismantle wheel hub swiftly from the drive wheel afterwards, the trouble that national agv helm assembly such as Europe and America needs whole split has been avoided, protect agv helm assembly inner structure's stability as far as possible.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model relates to a quick-release agv driving wheel, which comprises a wheel hub, an outer ring flange and a planetary gear speed reduction component;
the hub is detachably and fixedly connected with the outer ring flange;
the planetary gear speed reduction assembly is rotatably embedded in the outer ring flange;
the planetary gear speed reduction assembly comprises a primary planetary gear assembly and a secondary planetary gear assembly which are arranged side by side, and the primary planetary gear assembly and the secondary planetary gear assembly rotate on the same axis.
Further, the hub is sleeved on the periphery of the outer ring flange, a plurality of preformed holes are uniformly distributed in one end of the hub along the circumference, and the preformed holes are fixedly connected with the mounting holes of the outer ring flange through bolts.
Furthermore, the primary planetary gear assembly comprises a primary sun gear, a plurality of primary planet pinions, a planet carrier and an inner gear ring, and the teeth number of the primary sun gear is smaller than that of the primary planet pinions;
one end of the primary sun gear is outwards connected with a transmission shaft which is arranged inside the outer ring flange and is in transmission connection with a driving motor agv;
a plurality of planet gear shafts which are pivoted with the primary planet pinions are distributed on the planet carrier along the circumference, and the planet gear shafts correspond to the primary planet pinions one by one;
the primary sun gear is attached to the center of one end of the planet carrier, and each primary planet pinion surrounds the primary sun gear and is meshed with the primary sun gear;
the inner gear ring is sleeved on the peripheries of the primary planet pinions and the planet carrier, and the primary planet pinions are meshed with the inner gear of the inner gear ring.
Further, the secondary planetary gear assembly comprises a secondary sun gear and a plurality of secondary planet pinions, and the teeth number of the secondary sun gear is smaller than that of the secondary planet pinions;
the secondary sun gear is in coaxial transmission fit with the planet carrier through a flat key;
each of the secondary planet pinions circumscribes a secondary sun gear, and each of the secondary planet pinions meshes with the secondary sun gear.
Furthermore, the planetary gear speed reduction assembly also comprises a fixed frame which is a thin-wall cylinder with a hollow inner part;
the fixing frame is embedded in the outer ring flange, and the primary planetary gear assembly, the secondary planetary gear assembly and the transmission shaft are arranged in the fixing frame.
Furthermore, a plurality of slotted holes are formed in the curved surface of the fixing frame, and the slotted holes correspond to the secondary planet pinions one by one;
the secondary planet pinion is rotatably embedded in the slotted hole, and part of gear teeth of the secondary planet pinion are exposed out of the outer surface of the fixed frame.
Furthermore, continuous internal teeth are arranged on the inner side wall of the outer ring flange, and the secondary planet pinions are meshed with the internal teeth of the outer ring flange.
Furthermore, a deep groove ball bearing is arranged between the transmission shaft and the fixed frame; and a plurality of deep groove ball bearings are arranged between the fixing frame and the outer ring flange.
Furthermore, one end of the fixing frame close to the primary planetary gear assembly is connected with an end cover.
Further, the outer side wall of the hub is sleeved with polyurethane rubber coating.
Compared with the prior art, the beneficial effects of the utility model are that: the agv driving wheel is fixedly connected with the hub in a detachable mode by adopting an outer ring flange, and a speed reduction assembly in the driving wheel is embedded in the outer ring flange. Because the rubber is difficult to be easily detached from the hub directly, the hub and the rubber are integrally replaced after the hub is detached from the outer ring flange directly, so that the rotating part of the driving wheel is prevented from being detached, the rubber can be prevented from being detached from the hub with great force, and the burden of maintenance personnel can be reduced. This agv drive wheel adopts convenient to detach's outer lane flange to separate rotatable parts and wheel hub, comes out through following the outer lane flange with wheel hub, can easily swiftly change wheel hub and rubber wholly, makes the change of rubber more laborsaving.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic perspective view of a quick release type agv driving wheel according to the present invention;
FIG. 2 is a schematic view of FIG. 1, taken apart;
FIG. 3 is a schematic cross-sectional view taken in half section of FIG. 1;
FIG. 4 is a perspective view of the outer race flange and planetary gear reduction assembly shown in half cut-away in the hub;
FIG. 5 is an assembled view of the planetary gear reduction assembly as a whole;
FIG. 6 is an assembled view of the planetary reduction assembly partially connected;
in the figure: 1-a hub; 11-preparing holes;
2-outer ring flange;
3-a planetary gear reduction assembly;
31-a one-stage planetary gear assembly; 311-primary sun gear; 312-primary planet pinion; 313-a planet carrier;
3131 — planet gear shafts; 314-ring gear;
32-a two-stage planetary gear assembly; 321-a secondary sun gear; 322-secondary planet pinion;
33-a fixing frame; 331-a slot;
34-a drive shaft;
4-end cover;
5-polyurethane encapsulation.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1 to 6, the quick release type agv driving wheel of the present invention is preferably constructed.
Quick detach formula agv drive wheel includes wheel hub 1, outer lane flange 2 and planetary gear speed reduction subassembly 3, wheel hub 1 adopts the detachable mode to carry out fixed connection with outer lane flange 2, wherein threaded connection, key-type connection, pin joint or other separable buckle connection including among the mechanical connection, its purpose staff is through directly changing wheel hub and the whole of rubber behind wheel hub 1 and the outer lane flange 2 split, avoids will gluing the skin from wheel hub's split hard, can change the rubber of easy wearing and tearing fast conveniently. Preferably, the wheel hub 1 is a hollow thin-walled roller, a plurality of preformed holes 11 are uniformly distributed at one end of the wheel hub 1 along the circumference, the preformed holes 11 can be through holes or blind holes, threads are arranged in the preformed holes 11, the outer ring flange 2 is preferably a protruded surface flange, the wheel hub 1 is sleeved outside the outer ring flange 2, one end of the wheel hub 1 provided with the preformed holes 11 is attached to a mounting hole of the outer ring flange 2, and the outer ring flange 2 and the wheel hub 1 are detachably connected by adopting bolts.
Further, the planetary gear reduction assembly 3 is rotatably embedded inside the outer ring flange 2, wherein the planetary gear reduction assembly 3 includes a primary planetary gear assembly 31, a secondary planetary gear assembly 32 and a fixing bracket 33, the fixing bracket 33 is embedded inside the outer ring flange 2, and preferably, a plurality of deep groove ball bearings are arranged between the fixing bracket 33 and the outer ring flange 2, so that the outer ring flange 2 can rotate around the fixing bracket 33. The fixing frame 33 is a thin-wall cylinder with a hollow inner part, the primary planetary gear assembly 31 and the secondary planetary gear assembly 32 are arranged inside the fixing frame 33, and the primary planetary gear assembly 31 and the secondary planetary gear assembly 32 can rotate on the same axis after being arranged side by side.
Specifically, the primary planetary gear assembly 31 includes a primary sun gear 311, a plurality of primary planet pinions 312, a planet carrier 313, and an annulus gear 314; the secondary planetary gear assembly 32 includes a secondary sun gear 321 and a plurality of secondary planet pinions 322. According to the general principle of the existing planetary reducer, the sun gear and the pinion gears are preferably straight-tooth external gears, and the number of teeth of the primary sun gear 311 is smaller than that of the primary planet pinion gears 312, and the number of teeth of the secondary sun gear 321 is smaller than that of the secondary planet pinion gears 322. As a preferable mode of the present embodiment, the number of the planet pinions is preferably 3, the rotation of the planet pinions around the sun gear is most stable, the transmitted torque is more uniform, and the rotation of each planet pinion is not easily interfered when the agv driving wheel is small in size.
Further, one end of the primary sun gear 311 is connected to a transmission shaft 34, and the transmission shaft 34 is disposed inside the fixed frame 33 and is in transmission connection with an output shaft of a driving motor agv through a coupling, so that the driving motor drives the primary sun gear 311 to rotate actively. Preferably, the transmission shaft 34 and the fixing frame 33 are directly provided with deep groove ball bearings, so that the transmission shaft 34 rolls and rotates inside the fixing frame 33.
The planet carrier 313 is composed of a hollow wheel carrier shell and three planet gear shafts 3131 which are fixed on the wheel carrier shell and are uniformly distributed along the circumference, the wheel carrier shell comprises a circular-tube-shaped circumferential wall, and a front end wall and a rear end wall which are fixedly connected with the front end surface and the rear end surface of the circumferential wall, the front end wall and the rear end wall are provided with through center holes, the center holes are used for penetrating through the transmission shaft 34, and an inner flat key sleeve which is in transmission fit with the secondary sun gear 321 through a flat key is arranged in the center holes. The secondary sun gear 321 is provided with an outer flat key sleeve connected with the planet carrier 313 in a flat key mode, and the secondary sun gear 321 is attached to the center of the rear end wall of the planet carrier 313. The front and rear ends of the planetary gear shaft 3131 are respectively inserted into corresponding mounting holes formed in the front and rear end walls of the wheel carrier housing and fixed by snap springs, the protruding direction of the planetary gear shaft 3131 is on the front end wall, and each primary planetary pinion 312 is pivoted to the corresponding planetary gear shaft 3131, so that each primary planetary pinion 312 rotates on the planetary carrier 313.
The primary sun gear 311 is disposed in close contact with the center of the front end wall of the carrier 313, and each of the primary planet pinions 312 surrounds the primary sun gear 311 and meshes with the primary sun gear 311. The side wall of the inner side of the inner gear ring 314 is provided with continuous straight teeth, the inner gear ring 314 is sleeved on the peripheries of the primary planet pinion gears 312 and the planet carrier 313, each primary planet pinion gear 312 is meshed with the straight teeth of the inner gear ring 314 to rotate, the primary sun gear 311 is in driving rotation under the transmission connection of the driving motor, so that the primary planet pinion gears 312 are driven to rotate in the inner gear ring 314, and the planet carrier 313 is driven to rotate.
Further, the holder 33 has 3 slots 331 formed in a curved surface, and each of the secondary planet pinions 322 is rotatably fitted in the slots 331, and the slots 331 regulate the rotation positions of the secondary planet pinions 322. Part of the gear teeth of the secondary planet pinions 322 are exposed to the outer surface of the fixed frame 33. And continuous internal teeth are arranged on the inner side wall of the outer ring flange 2, and each secondary planet pinion 322 is meshed with the internal teeth of the outer ring flange 2. When the secondary planet pinions 322 rotate in the groove holes 331, the outer ring flange 2 is rotated by the meshing transmission, so that the hub 1 fixedly connected to the outer ring flange 2 is rotated.
Preferably, an end cover 4 is connected to one end of the fixing frame 33 close to the primary planetary gear assembly 31, and is used for preventing dust or water from dropping into the interior of the planetary gear speed reducing assembly 3, and preferably, the end cover 4 is in threaded connection with the fixing frame 33 by using bolts. The outer side wall of the hub 1 is sleeved with the polyurethane rubber coating 5, the polyurethane rubber coating 5 is used as a rubber coating, the wear resistance of the wheel is high, and the wear resistance of the driving wheel can be improved.
Planetary gear speed reduction subassembly speed reduction rotatory theory of operation be: the flange of the driving motor is fixed with the fixed frame through threaded connection, and the inner gear ring is embedded in the fixed frame, so that the fixed frame and the shell of the driving motor are relatively static. The first-stage sun gear is in transmission connection with the driving motor to rotate actively, the first-stage sun gear is in transmission with an external gear of the first-stage planet pinion, each planet pinion is in internal meshing with the inner gear ring, and the inner gear ring is fixed, so that the first-stage sun gear with smaller tooth number drives the first-stage planet pinion with larger tooth number to rotate in a same direction in a speed reduction manner, and the planet carrier rotates in a speed reduction manner. The two-stage sun gear connected with the planet carrier through the flat key also performs coaxial speed reduction rotation, after the two-stage sun gear is in meshing transmission with the two-stage planet pinion, the two-stage sun gear with smaller tooth number drives the two-stage planet pinion with larger tooth number to perform speed reduction rotation, and the two-stage planet pinion drives the outer ring flange to perform speed reduction rotation after being meshed with the outer ring flange, so that the hub fixedly connected with the outer ring flange performs speed reduction rotation. The hub of the driving wheel further rotates in a speed reducing mode through the first-stage speed reduction of the first-stage planetary gear assembly and the second-stage speed reduction of the second-stage planetary gear assembly, the speed reducing transmission ratio is large, and the stability is strong.
Other structures of the quick release type agv driving wheel are disclosed in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A quick detach formula agv drive wheel which characterized in that: comprises a hub (1), an outer ring flange (2) and a planetary gear speed reduction assembly (3);
the hub (1) is detachably and fixedly connected with the outer ring flange (2);
the planetary gear speed reducing component (3) is rotatably embedded in the outer ring flange (2);
the planetary gear speed reducing assembly (3) comprises a primary planetary gear assembly (31) and a secondary planetary gear assembly (32) which are arranged side by side, and the primary planetary gear assembly (31) and the secondary planetary gear assembly (32) rotate on the same axis.
2. The quick release agv drive wheel of claim 1, wherein: wheel hub (1) cup joints in the periphery of outer lane flange (2), wheel hub (1) one end has a plurality of preformed hole (11) along circumference evenly distributed, and this preformed hole (11) are used for adopting bolt fixed connection with the mounting hole of outer lane flange (2).
3. The quick release agv drive wheel of claim 1, wherein: the primary planetary gear assembly (31) comprises a primary sun gear (311), a plurality of primary planet pinions (312), a planet carrier (313) and an inner gear ring (314), and the number of teeth of the primary sun gear (311) is less than that of the primary planet pinions (312);
one end of the primary sun gear (311) is connected with a transmission shaft (34) outwards, and the transmission shaft (34) is arranged inside the outer ring flange (2) and is in transmission connection with a driving motor agv;
a plurality of planet gear shafts (3131) which are pivoted with the primary planet pinions (312) are distributed on the planet carrier (313) along the circumference, and the planet gear shafts (3131) correspond to the primary planet pinions (312) one by one;
the primary sun gear (311) is attached to the center of one end of the planet carrier (313), and each primary planet pinion (312) surrounds the primary sun gear (311) and is meshed with the primary sun gear (311);
the inner gear ring (314) is sleeved on the peripheries of the primary planet pinions (312) and the planet carrier (313), and the primary planet pinions (312) are meshed with the inner gear of the inner gear ring (314).
4. A quick disconnect agv drive wheel according to claim 3, wherein: the secondary planetary gear assembly (32) comprises a secondary sun gear (321) and a plurality of secondary planet pinions (322), and the number of teeth of the secondary sun gear (321) is less than that of the secondary planet pinions (322);
the secondary sun gear (321) is in coaxial transmission fit with the planet carrier (313) through a flat key;
each secondary planet pinion (322) surrounds a secondary sun gear (321), and each secondary planet pinion (322) meshes with the secondary sun gear (321).
5. The quick release agv drive wheel of claim 4, wherein: the planetary gear speed reduction assembly (3) further comprises a fixed frame (33), and the fixed frame (33) is a thin-wall cylinder with a hollow inner part;
the fixing frame (33) is embedded in the outer ring flange (2), and the primary planetary gear assembly (31), the secondary planetary gear assembly (32) and the transmission shaft (34) are arranged in the fixing frame (33).
6. The quick release agv drive wheel of claim 5, wherein: a plurality of slotted holes (331) are formed in the curved surface of the fixed frame (33), and the slotted holes (331) correspond to the secondary planet pinions (322) one by one;
the secondary planet pinion (322) is rotatably embedded in the slotted hole (331), and part of gear teeth of the secondary planet pinion (322) are exposed out of the outer surface of the fixed frame (33).
7. The quick release agv drive wheel of claim 4, wherein: and continuous internal teeth are arranged on the inner side wall of the outer ring flange (2), and the secondary planet pinions (322) are meshed with the internal teeth of the outer ring flange (2).
8. The quick release agv drive wheel of claim 5, wherein: a deep groove ball bearing is arranged between the transmission shaft (34) and the fixed frame (33); and a plurality of deep groove ball bearings are arranged between the fixed frame (33) and the outer ring flange (2).
9. The quick release agv drive wheel of claim 5, wherein: one end of the fixed frame (33) close to the primary planetary gear assembly (31) is connected with an end cover (4).
10. The quick release agv drive wheel of claim 1, wherein: the outer side wall of the hub (1) is sleeved with a polyurethane rubber coating (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921268522.4U CN210416220U (en) | 2019-08-07 | 2019-08-07 | Quick detach formula agv drive wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921268522.4U CN210416220U (en) | 2019-08-07 | 2019-08-07 | Quick detach formula agv drive wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210416220U true CN210416220U (en) | 2020-04-28 |
Family
ID=70384942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921268522.4U Active CN210416220U (en) | 2019-08-07 | 2019-08-07 | Quick detach formula agv drive wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210416220U (en) |
-
2019
- 2019-08-07 CN CN201921268522.4U patent/CN210416220U/en active Active
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