CN210397604U - Speed reducing mechanism of horizontal agv driving wheel - Google Patents
Speed reducing mechanism of horizontal agv driving wheel Download PDFInfo
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- CN210397604U CN210397604U CN201921268617.6U CN201921268617U CN210397604U CN 210397604 U CN210397604 U CN 210397604U CN 201921268617 U CN201921268617 U CN 201921268617U CN 210397604 U CN210397604 U CN 210397604U
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- speed reduction
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Abstract
The utility model discloses a speed reducing mechanism of a horizontal agv driving wheel, which comprises a shell, a primary speed reducing transmission component and a secondary speed reducing transmission component; the primary speed reduction transmission assembly and the secondary speed reduction transmission assembly are embedded in the shell and are meshed with the inner wall of the shell to rotate; the first-stage speed reduction transmission assembly and the second-stage speed reduction transmission assembly are arranged side by side, and the first-stage speed reduction transmission assembly drives the second-stage speed reduction transmission assembly to rotate on the same axis. The speed reducing mechanism performs twice speed reduction treatment on the high rotating speed output by the motor through the combined action of the first-stage speed reducing transmission assembly and the second-stage speed reducing transmission assembly, so that the high rotating speed of the motor is easily converted into the low rotating speed required by agv, the defect of low speed reducing transmission ratio of the existing first-stage planetary gear speed reducer is overcome, the rotating speed output to a agv driving wheel is further reduced, and the universal high-rotating-speed motor is suitable for a driving device of a agv driving wheel.
Description
Technical Field
The utility model relates to an agv drive wheel technical field, concretely relates to is a reduction gears of horizontal 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.
agv the trolley can move continuously in straight or turning direction via the driving wheel, and the speed reducing motor is used as the driving device to drive the driving wheel. The existing speed reducing motors all comprise speed reducers and motors, wherein the speed reducers are more in types and generally comprise the following types: gear reducers, worm-gear reducers, planetary gear reducers, cycloidal pin gear reducers, and harmonic gear reducers. Considering that agv driving wheels are small in size and large in bearing load, a agv driving device generally adopts a planetary gear reducer, has the advantages of being small in mass, small in size, large in bearing capacity, stable in transmission, high in transmission efficiency and the like, and can be well applied to agv driving wheels.
However, the existing planetary gear reducer usually adopts a set of planetary gear set structure, which has the defects of low reduction transmission ratio and small transmission torque, and the rotation speed of the motor is usually very high, and when the motor with high rotation speed adopts a one-stage planetary gear reducer, the high rotation speed output by the motor is difficult to be reduced to the rotation speed suitable for agv driving wheels to rotate, so that the motor is limited by the rotation speed in the use of agv driving wheels. Therefore, the existing speed reducer applied to agv driving wheels is optimized and modified, and the capabilities of speed reduction transmission ratio and transmission torque are improved, so that the motor with high rotating speed can drive agv driving wheels to run.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides a reduction gears of horizontal agv drive wheel, it is through two sets of planetary gear set structures, further improves current planetary reduction gears's speed reduction ratio and hangs down the defect that transmission torque is little, makes the reduction gears who uses at agv drive wheel have higher speed reduction ratio, makes general high-speed motor all be fit for using in the agv drive wheel.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model relates to a speed reducing mechanism of a horizontal agv driving wheel, which comprises a shell, a primary speed reducing transmission component and a secondary speed reducing transmission component;
the primary speed reduction transmission assembly and the secondary speed reduction transmission assembly are embedded in the shell and are meshed with the inner wall of the shell to rotate;
the first-stage speed reduction transmission assembly and the second-stage speed reduction transmission assembly are arranged side by side, and the first-stage speed reduction transmission assembly drives the second-stage speed reduction transmission assembly to rotate on the same axis.
Furthermore, the primary speed reduction transmission assembly comprises a primary sun gear, a plurality of primary planet pinions and a planet carrier;
the primary sun gear is in driving connection with a driving motor agv;
primary planet gear shafts which are pivoted with the primary planet pinions are uniformly distributed on the planet carrier along the circumference, and the primary planet gear shafts correspond to the primary planet pinions one by one;
each of the primary planet pinions surrounds a primary sun gear, and each of the primary planet pinions is meshed with the primary sun gear.
Further, the number of teeth of the primary sun gear is smaller than that of the primary planet pinions.
Further, the secondary reduction transmission assembly comprises a secondary sun gear and a plurality of secondary planet pinions;
the secondary sun gear is fixedly connected with the middle part of the planet carrier;
each of the secondary planet pinions circumscribes a secondary sun gear, and each of the secondary planet pinions is in mesh with the secondary sun gear.
Further, the number of teeth of the secondary sun gear is smaller than that of the secondary planet pinions.
Further, a hollow circular chamber is arranged inside the shell, continuous internal teeth are arranged on the side wall of the chamber, and each primary planet pinion and each secondary planet pinion are meshed with the internal teeth of the shell.
Further, the device also comprises an output shaft, and one end of the output shaft is fixedly connected agv with a driving wheel;
and a secondary planet gear shaft for pin joint of secondary planet pinions is uniformly distributed on one end surface of the output shaft far away from the agv driving wheel along the circumference, and the secondary planet gear shaft and the secondary planet pinions correspond to each other one by one.
Further, the device also comprises an output flange;
the output flange is sleeved with an output shaft, and a plurality of deep groove ball bearings are arranged between the output flange and the output shaft;
the output flange is evenly distributed with a plurality of counter bores along the circumference, and the counter bores are used for being fixedly connected with the shell through bolts.
Furthermore, the shell is provided with a plurality of preformed holes at one end far away from the end connected with the output flange, and the preformed holes are used for being fixedly connected with a flange of a driving motor of agv through bolts.
Compared with the prior art, the beneficial effects of the utility model are that: the speed reducing mechanism performs twice speed reduction treatment on the high rotating speed output by the motor through the combined action of the first-stage speed reducing transmission assembly and the second-stage speed reducing transmission assembly, so that the high rotating speed of the motor is easily converted into the low rotating speed required by agv, the defect of low speed reducing transmission ratio of the existing first-stage planetary gear speed reducer is overcome, the rotating speed output to a agv driving wheel is further reduced, and the universal high-rotating-speed motor is suitable for a driving device of a agv driving wheel.
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 horizontal agv driving wheel speed reducing mechanism of 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 an assembled schematic view of the first and second step-down gear assemblies after half-cutting the planet carrier;
in the figure: 1-a shell; 11-a chamber; 12-preparing holes;
2-a first-stage reduction transmission assembly; 21-primary sun gear; 22-primary planet pinion;
23-a planet carrier; 231-primary planet gear shafts; 232-wheel carrier housing; 2321-front end wall; 2322-rear end wall;
3-a secondary reduction drive assembly; 31-a secondary sun gear; 32-secondary planet pinions;
4-an output shaft; 41-secondary planet gear shaft;
5-an output flange; 51-countersunk.
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 4, the present invention is a preferable structure of the speed reducing mechanism for the horizontal agv driving wheel.
The speed reducing mechanism of the horizontal agv driving wheel comprises a shell 1, a primary speed reducing transmission component 2, a secondary speed reducing transmission component 3, an output shaft 4 and an output flange 5, wherein the primary speed reducing transmission component 2 and the secondary speed reducing transmission component 3 are embedded in the shell 1, and the primary speed reducing transmission component 2 and the secondary speed reducing transmission component 3 are meshed with the inner wall of the shell 1 to rotate; the first-stage reduction transmission assembly 2 and the second-stage reduction transmission assembly 3 are arranged side by side, and the first-stage reduction transmission assembly 2 drives the second-stage reduction transmission assembly 3 to rotate on the same axis, so that the rotating speed output by the second-stage reduction transmission assembly 3 is reduced. The output shaft 4 is fixedly connected agv with a driving wheel, and the output end of the two-stage reduction transmission assembly 3 is in driving connection with the output shaft 4 so as to enable the agv driving wheel to rotate in a reduced speed.
The primary speed reduction transmission assembly 2 comprises a primary sun gear 21, a plurality of primary planet pinions 22 and a planet carrier 23; each of the primary planet pinions 22 surrounds the primary sun gear 21, and each of the primary planet pinions 22 meshes with the primary sun gear 21. The secondary reduction gear assembly 3 comprises a secondary sun gear 31 and a plurality of secondary planet pinions 32, each of the secondary planet pinions 32 surrounding the secondary sun gear 31 and each of the secondary planet pinions 32 meshing with the secondary sun gear 31. According to the deceleration principle of the speed reducer, the number of teeth of the primary sun gear 21 is smaller than the number of teeth of the primary planet pinion 22, and the number of teeth of the secondary sun gear 31 is smaller than the number of teeth of the secondary planet pinion 32, so that the primary sun gear 21 makes the primary planet pinion 22 rotate at a decelerated speed by meshing with the secondary sun gear 31, and the secondary planet pinion 32 rotates at a decelerated speed by meshing with the secondary sun gear 31.
In addition, according to a general structure of a conventional planetary gear reducer, the sun gear and the planetary pinion are both spur gears of an external gear type, and the engagement between the sun gear and the planetary pinion is both external gear type engagement transmission. Preferably, the number of the primary planet pinions 22 and the secondary planet pinions 32 is 3, the planet pinions of the number structure rotate around the sun gear most stably, the transmitted torque is more uniform, and the rotation of each planet pinion is not easy to generate interference under the condition that the AGV driving wheel is small in size.
Further, as shown in fig. 4, the planet carrier 23 is composed of a hollow wheel carrier housing 232 and three primary planet gear shafts 231 fixed to the wheel carrier housing 232 and evenly distributed along the circumference, the wheel carrier housing 232 includes a circular cylindrical peripheral wall and front and rear end walls 2321 and 2322 fixedly connected to the front and rear end surfaces of the peripheral wall, a central hole for sleeving the secondary sun gear is arranged in the middle of the wheel carrier housing 232, the front and rear ends of the primary planet gear shaft 231 are respectively inserted into corresponding mounting holes formed in the front and rear end walls 2321 and 2322 and fixed by a snap spring, and each primary planet pinion 22 is pivoted to the corresponding primary planet gear shaft 231, so that each primary planet pinion 22 rotates on the planet carrier 23.
An input shaft is arranged at one end of the primary sun gear 21 and is fixedly connected with an output shaft of a driving motor agv through a coupler, so that the primary sun gear 21 actively rotates; the primary sun gear 21 abuts on the front end wall 2321 of the carrier housing 232. One end of the secondary sun gear 31 is provided with a sleeve shaft, and the sleeve shaft is sleeved in the central hole of the wheel carrier shell 232 from the rear end wall 2322 of the wheel carrier shell 232, so that the secondary sun gear 31 and the planet carrier 23 rotate synchronously.
Furthermore, a plurality of secondary planet gear shafts 41 are uniformly distributed on one end face of the output shaft 4 far away from the driving wheel connected agv along the circumference, and each secondary planet pinion 32 is pivoted on the secondary planet gear shaft 41, so that the secondary planet pinion 32 drives the output shaft 4 to rotate.
Further, a hollow circular chamber 11 is arranged inside the shell 1, continuous internal teeth are arranged on the side wall of the chamber 11, and each primary planet pinion 22 and each secondary planet pinion 32 are meshed with the internal teeth of the shell 1.
The middle part of the output flange 5 is a hollow stepped hole, and the output shaft 4 is sleeved in the stepped hole of the output flange 5 so as to avoid the output shaft 4 from colliding with an obstacle and being damaged when rotating. And a plurality of deep groove ball bearings are embedded in the stepped holes so as to reduce the friction between the output shaft 4 and the output flange 5. A plurality of counter bores 51 are uniformly distributed at one end of the output flange 5 along the circumference, and the counter bores 51 are used for being fixedly connected with the shell 1 through bolts, so that the output flange 5 and the shell 1 form an integrated structure.
The shell 1 is equipped with a plurality of preformed hole 12 in the one end of keeping away from connecting output flange 5, preformed hole 12 is used for through bolt and agv's driving motor's flange fixed connection to when making driving motor work, this shell 1 is motionless relative driving motor, and driving motor's output shaft 4 drives one-level speed reduction drive assembly 2 and rotates in shell 1.
The principle that the primary speed reduction transmission assembly drives the secondary speed reduction transmission assembly to do speed reduction motion is as follows: the during operation, the casing is for driving motor fixed motionless, driving motor's output shaft drives one-level sun gear initiative rotation, and the less one-level sun gear of number of teeth drives the more one-level planet pinion of number of teeth and does the rotation at a slow speed, and then makes the planet carrier with one-level planet pinion pin joint do the driven rotation with slowing down, again because one-level planet pinion is the internal gearing with first ring gear to form syntropy deceleration state, and then make the second grade sun gear of cup jointing at the planet carrier do the rotation at a slow speed.
The principle that the secondary speed reduction transmission assembly drives the output shaft to do speed reduction motion is as follows: the second-stage sun gear drives the second-stage planet pinion to rotate through meshing transmission, the second-stage sun gear with a small number of teeth drives the second-stage planet pinion with a large number of teeth to rotate in a decelerating mode, and then the output shaft pivoted with the second-stage planet pinion is driven to rotate in a decelerating mode, so that the agv driving wheel connected to the output shaft performs deceleration movement.
The high rotating speed of the driving motor is converted into the low rotating speed of agv driving wheels through the first-stage speed reduction of the first-stage speed reduction transmission assembly and the second-stage speed reduction of the second-stage speed reduction transmission assembly and the output shaft, compared with the traditional first-stage planetary gear reducer, the speed reduction transmission ratio is large, the transmission torque is large, the rapid speed reduction function and the large rotation torque bearing can be realized, the motor with the high universal rotating speed can be applied to a driving device of agv driving wheels, the barrier that the existing agv driving wheels only can use the low-rotating-speed motor due to the low speed reduction transmission ratio of the speed reducer is broken, and meanwhile, various different motors are convenient to store for later use.
Other structures of the speed reducing mechanism of the horizontal agv driving wheel are shown 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 (9)
1. A speed reducing mechanism of a horizontal agv driving wheel is characterized in that: comprises a shell (1), a primary speed reduction transmission component (2) and a secondary speed reduction transmission component (3);
the primary speed reduction transmission assembly (2) and the secondary speed reduction transmission assembly (3) are embedded in the shell (1), and the primary speed reduction transmission assembly (2) and the secondary speed reduction transmission assembly (3) are meshed with the inner wall of the shell (1) to rotate;
the primary speed reduction transmission assembly (2) and the secondary speed reduction transmission assembly (3) are arranged side by side, and the primary speed reduction transmission assembly (2) drives the secondary speed reduction transmission assembly (3) to rotate on the same axis.
2. The deceleration mechanism of horizontal agv driving wheel according to claim 1, wherein: the primary speed reduction transmission assembly (2) comprises a primary sun gear (21), a plurality of primary planet pinions (22) and a planet carrier (23);
the primary sun gear (21) is in driving connection with a driving motor agv;
primary planet gear shafts (231) which are pivoted with the primary planet pinions (22) are uniformly distributed on the planet carrier (23) along the circumference, and the primary planet gear shafts (231) correspond to the primary planet pinions (22) one by one;
each of the primary planet pinions (22) surrounds a primary sun gear (21), and each of the primary planet pinions (22) meshes with the primary sun gear (21).
3. The deceleration mechanism of horizontal agv driving wheel according to claim 2, wherein: the number of teeth of the primary sun gear (21) is less than that of the primary planet pinion (22).
4. The deceleration mechanism of horizontal agv driving wheel according to claim 2, wherein: the secondary reduction transmission assembly (3) comprises a secondary sun gear (31) and a plurality of secondary planet pinions (32);
the secondary sun gear (31) is fixedly connected with the middle part of the planet carrier (23);
each of the secondary planet pinions (32) surrounds a secondary sun gear (31), and each of the secondary planet pinions (32) meshes with the secondary sun gear (31).
5. The deceleration mechanism of horizontal agv driving wheel according to claim 4, wherein: the number of teeth of the secondary sun gear (31) is less than that of the secondary planet pinion (32).
6. The deceleration mechanism of horizontal agv driving wheel according to claim 4, wherein: the planetary gear set is characterized in that a hollow circular chamber (11) is arranged inside the shell (1), continuous internal teeth are arranged on the side wall of the chamber (11), and each primary planetary pinion (22) and each secondary planetary pinion (32) are meshed with the internal teeth of the shell (1).
7. The deceleration mechanism of horizontal agv driving wheel according to any one of claims 4 and 5, wherein: the device also comprises an output shaft (4), and one end of the output shaft (4) is fixedly connected agv driving wheels;
one end face, far away from the driving wheel connected with agv, of the output shaft (4) is uniformly provided with secondary planet gear shafts (41) which are pivoted with secondary planet pinions (32) along the circumference, and the secondary planet gear shafts (41) correspond to the secondary planet pinions (32) one by one.
8. The deceleration mechanism of horizontal agv driving wheel according to claim 7, wherein: also comprises an output flange (5);
the output flange (5) is sleeved with the output shaft (4), and a plurality of deep groove ball bearings are arranged between the output flange (5) and the output shaft (4);
the output flange (5) is evenly distributed with a plurality of counter bores (51) along the circumference, and the counter bores (51) are used for being fixedly connected with the shell (1) through bolts.
9. The deceleration mechanism of horizontal agv driving wheel according to claim 8, wherein: the shell (1) is equipped with a plurality of preformed hole (12) in the one end of keeping away from connecting output flange (5), preformed hole (12) are used for through bolt and agv's driving motor's flange fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921268617.6U CN210397604U (en) | 2019-08-07 | 2019-08-07 | Speed reducing mechanism of horizontal agv driving wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921268617.6U CN210397604U (en) | 2019-08-07 | 2019-08-07 | Speed reducing mechanism of horizontal agv driving wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397604U true CN210397604U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921268617.6U Active CN210397604U (en) | 2019-08-07 | 2019-08-07 | Speed reducing mechanism of horizontal agv driving wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397604U (en) |
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2019
- 2019-08-07 CN CN201921268617.6U patent/CN210397604U/en active Active
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