CN220147141U - Driving wheel group with small volume and heavy load - Google Patents
Driving wheel group with small volume and heavy load Download PDFInfo
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- CN220147141U CN220147141U CN202321666624.8U CN202321666624U CN220147141U CN 220147141 U CN220147141 U CN 220147141U CN 202321666624 U CN202321666624 U CN 202321666624U CN 220147141 U CN220147141 U CN 220147141U
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 21
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a small-volume and large-load driving wheel set, wherein a first driving component for driving a wheel hub to turn is arranged at the top, and a second driving component for driving the wheel hub to rotate is arranged below the first driving component; the hub is radially divided into two split parts, the split parts are radially provided with step holes, large diameter ends of the two split parts forming the hub are attached, and a speed reducer of the second driving assembly is arranged in an inner hole of the hub. According to the utility model, the hub is divided into the split parts, and the hub is divided into the two split parts along the radial direction, so that the step holes in the split parts can be exposed, the speed reducer can be placed in the step holes and fixed in position, the inner holes of the hub are fully utilized, the wall thickness of the hub is ensured to meet the strength requirement under the same condition, and the space occupation of the hub is more saved; in addition, the first driving assembly and the second driving assembly are arranged to respectively drive the wheel hub to steer and rotate, so that the requirement that the wheel hub can carry out power output is met.
Description
Technical Field
The utility model relates to a driving wheel set, in particular to a driving wheel set with small volume and large load.
Background
The driving wheel group is a steering power device which can provide power output and can finish high-precision rotation positioning; the driving wheel sets are mainly combined with an omnidirectional mobile platform, and the omnidirectional movement of the platform can be realized after the driving wheel sets are combined with the omnidirectional mobile platform. The common driving wheel set mainly has two types of vertical and horizontal arrangement forms; the vertical driving wheel set has higher overall height, and the space required by the rotation of the horizontal driving wheel set is larger, but the existing two driving wheel sets cannot be directly applied to an omnidirectional mobile platform with compact overall structure.
Disclosure of Invention
The utility model aims at: aiming at the problem that the driving wheel set in the prior art is low in structural compactness and cannot be used on an omnidirectional moving platform with compact structure, the driving wheel set with high structural compactness and small volume and large load is provided.
In order to achieve the above object, the present utility model provides the following technical solutions:
the small-size heavy-load driving wheel set is provided with a first driving component for driving the wheel hub to turn, and a second driving component for driving the wheel hub to rotate is arranged below the small-size heavy-load driving wheel set; the hub is radially divided into two split parts, the split parts are radially provided with step holes, large diameter ends of the two split parts forming the hub are attached, and a speed reducer of the second driving assembly is arranged in an inner hole of the hub.
According to the utility model, the hub is divided into the two split parts along the radial direction, so that the step holes in the split parts can be exposed, the speed reducer can be placed in the step holes and fixed in position, the inner holes of the hub are fully utilized, the wall thickness of the hub is ensured to meet the strength requirement under the same condition, and the space occupation of the hub is more saved; in addition, the first driving assembly and the second driving assembly are arranged to respectively drive the wheel hub to steer and rotate, so that the requirement that the wheel hub can carry out power output is met.
Further, the first driving assembly is provided with a first motor, the first motor is connected with an encoder counting shaft and a magnetic encoder, and the first driving assembly turns to the driving hub through a turbine worm structure. The first motor can be a servo motor and is used for outputting power, the encoder counting shaft is fixedly connected with the output flange of the first driving assembly, the magnetic encoder is fixedly connected with the outer shell of the first driving assembly, and the encoder counting shaft and the magnetic encoder are coaxially arranged, so that the rotation number and the rotation angle of the output flange of the first driving assembly can be obtained through the encoder counting shaft, the rotation angle and the rotation number are fed back to the control system to be judged, the control system gives an instruction to the first motor and controls the driving hub to realize closed loop feedback, and any angle rotation is realized.
Further, the hub is arranged in the middle of the pi-shaped bracket component, and the top of the bracket component is fixed with a first driving component. The bracket assembly facilitates the setting and fixing of the first drive assembly, the second drive set and the hub position.
Further, the two vertical surfaces of the pi-shaped bracket component are both mounting brackets, and the mounting brackets are divided into two detachable parts along the transverse direction, wherein the two parts are a first bracket positioned above and a second bracket positioned below; the joint surfaces of the first bracket and the second bracket are overlapped with the radial direction of the hub. The installing support can be dismantled, and first support, second support of being convenient for dismantle alone, local dismantlement carries out when convenient maintenance, simplifies the maintenance and dismantle the time of part, improves operating efficiency.
Further, the second driving assembly is provided with a second motor, the second motor is arranged between the first driving assembly and the hub, and the second motor drives the hub to rotate through the belt pulley structure. The second motor is arranged above the hub and drives the hub to rotate through the belt pulley structure.
Further, the second motor is located below the pi-shaped transverse surface of the bracket assembly, and two gear shafts of the belt pulley structure penetrate through the pi-shaped vertical surface of the bracket assembly and are connected through a vertically arranged belt body. The gear shaft passes through the bracket component and is connected through the belt body so as to transmit the rotation power of the hub.
Further, one side of the speed reducer, which is close to the belt, is provided with an input shaft, and the other side of the speed reducer is provided with an output flange; the input shaft is driven by the belt body to rotate and sequentially drives the output flange and the hub to rotate. The belt body sequentially drives the input shaft to rotate, and the input shaft sequentially drives the output flange and the hub to rotate so as to realize the rotation of the hub; the output side of the speed reducer is fastened with the output flange through bolts and pins, and the output flange is fastened with the hub through a first expansion sleeve.
Further, a pressing plate is arranged beside the input shaft and fixed on the vertical surface of the bracket assembly, the pressing plate is clamped with a shaft sleeve of the input shaft through a spline, and the shaft sleeve is fixedly connected with a shell of the speed reducer.
Further, the pi-shaped transverse surface of the bracket component is disc-shaped. Facilitating the securing of the first drive assembly.
Further, the cambered surface of the hub is wrapped with an outer layer structure made of polyurethane. The inner layer of the hub is a steel casting, and the outer layer is polyurethane.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
the hub is divided into two split parts along the radial direction, so that the step holes in the split parts can be exposed, the speed reducer can be placed in the step holes and fixed in position, the inner holes of the hub are fully utilized, the wall thickness of the hub is ensured to meet the strength requirement under the same condition, and the space occupation of the hub is more saved; in addition, the first driving assembly and the second driving assembly are arranged to respectively drive the wheel hub to steer and rotate, so that the requirement that the wheel hub can carry out power output is met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 shows a block diagram of a small volume, heavy duty drive wheel assembly of the present utility model.
Fig. 2 shows a block diagram of another view of fig. 1.
Fig. 3 shows a cross-sectional view in the lateral direction of fig. 1.
Wherein the above figures include the following reference numerals:
a 10 hub; 11 sections;
a first drive assembly 20; a first motor 21; 22 encoder counting axes; a 23 magnetic encoder;
a second motor 31; 32 gear shafts; 33 belt body; 34 speed reducer; 35 input shaft; 36 an output flange; 37 shaft sleeve; 38 a housing; 39 pulleys;
40 a bracket assembly; 41 a first bracket; a second bracket 42;
50 pressing plates; a 60 bearing; 70 a first expansion sleeve; 80 a second expansion sleeve.
Detailed Description
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless otherwise indicated.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Bearings 60 are provided between the stand assembly 40 and the vertical surface of the hub 10 to facilitate rotation of the hub 10.
1-3, a small-volume and heavy-load driving wheel assembly is provided with a first driving assembly 20 at the top for driving the wheel hub 10 to turn, and a second driving assembly below for driving the wheel hub 10 to rotate; the hub 10 is divided into two split parts 11 along the radial direction, the split parts 11 are radially provided with step holes, the large diameter ends of the two split parts 11 forming the hub 10 are attached, and a speed reducer 34 of the second driving assembly is arranged in an inner hole of the hub 10.
According to the utility model adopting the technical scheme, the hub 10 is divided into the split parts, the hub 10 is divided into the two split parts 11 along the radial direction, so that the step holes in the split parts 11 can be exposed, the speed reducer 34 can be placed in the step holes and fixed in position, the inner holes of the hub 10 are fully utilized, the wall thickness of the hub 10 is ensured to meet the strength requirement under the same condition, and the space occupation of the hub 10 is more saved; in addition, the first driving assembly 20 and the second driving assembly are arranged to drive the hub 10 to turn and rotate respectively, so that the requirement that the hub 10 can output power is met.
Further, the first driving assembly 20 is provided with a first motor 21, the first motor 21 is connected with an encoder counting shaft 22 and a magnetic encoder 23, and the first driving assembly 20 drives the hub 10 to turn through a turbine worm structure. The first motor 21 can be a servo motor and perform power output, the encoder counting shaft 22 is fixedly connected with the output flange 36 of the first driving assembly 20, the magnetic encoder 23 is fixedly connected with the outer shell of the first driving assembly 20, and the encoder counting shaft 22 and the magnetic encoder 23 are coaxially arranged, so that the rotation number and the rotation angle of the output flange 36 of the first driving assembly 20 can be obtained through the encoder counting shaft 22, the rotation angle and the rotation number are fed back to a control system to be judged, the control system gives an instruction to the first motor 21 and controls the steering of the driving hub 10 to realize closed loop feedback, and any angle rotation is realized.
Further, the hub 10 is disposed in the middle of the pi-shaped bracket assembly 40, and the first driving assembly 20 is fixed on the top of the bracket assembly 40. The bracket assembly 40 facilitates the positioning and fixing of the first drive assembly 20, the second drive-group, and the hub 10.
Further, the two vertical surfaces of the bracket component 40 pi are both mounting brackets, and the mounting brackets are divided into two detachable parts along the transverse direction, wherein the two parts are a first bracket 41 positioned above and a second bracket 42 positioned below; the contact surfaces of the first and second brackets 41, 42 are overlapped with the radial direction of the hub 10. The installing support can be dismantled, and the first support 41 of being convenient for, second support 42 dismantle alone, carry out local dismantlement when convenient maintenance, simplify the maintenance and dismantle the time of part, improve operating efficiency.
Further, the second driving assembly is provided with a second motor 31, the second motor 31 is arranged between the first driving assembly 20 and the hub 10, and the second motor 31 drives the hub 10 to rotate through a belt pulley structure. The second motor 31 is disposed above the hub 10 and drives the hub 10 to rotate through a pulley structure.
Further, the second motor 31 is located below the pi-shaped transverse surface of the bracket assembly 40, and two gear shafts 32 of the belt pulley structure penetrate through the pi-shaped vertical surface of the bracket assembly 40, and the two gear shafts 32 are connected through a vertically arranged belt body 33. The gear shaft 32 passes through the bracket assembly 40 and is connected by the belt body 33 to transmit rotational power of the hub 10.
Further, an input shaft 35 is arranged on one side of the speed reducer 34 close to the belt, and an output flange 36 is arranged on the other side; the input shaft 35 is driven by the belt body 33 to rotate, and in turn drives the output flange 36 and the hub 10 to rotate. The belt body 33 sequentially drives the input shaft 35 to rotate, and the input shaft 35 sequentially drives the output flange 36 and the hub 10 to rotate so as to realize the rotation of the hub 10; the output side of the speed reducer 34 is fastened to the output flange 36 by bolts and pins, and the output flange 36 is fastened to the hub 10 by a first expansion sleeve 70.
Further, a pressing plate 50 is arranged beside the input shaft 35, the pressing plate 50 is fixed on the vertical surface of the bracket assembly 40, the pressing plate 50 is clamped with the shaft sleeve 37 of the input shaft 35 through a spline, and the shaft sleeve 37 is fixedly connected with the shell 38 of the speed reducer 34.
Further, the bracket assembly 40 pi-shaped transverse surface is disc-shaped. Facilitating the securement of the first drive assembly 20.
Further, the cambered surface of the hub 10 is wrapped with an outer layer structure made of polyurethane. The inner layer of the hub 10 is a steel casting, and the outer layer is polyurethane.
Specifically, the first drive assembly 20 drives the hub 10 in a steering direction and the second drive assembly drives the hub 10 in a rotational direction. The speed reducer 34 is arranged in the hub 10, so that the power transmission path from the speed reducer 34 to the hub 10 is shortened; meanwhile, the whole height of the driving wheel set is reduced by adopting a rotary driving wheel set. Both gear shafts 32 are fixedly connected to the pulley 39 by a second expansion sleeve 80.
The scope of the utility model is not to be limited by the embodiments described above, but by the appended claims and their equivalents.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The driving wheel group with small volume and large load is characterized in that a first driving component for driving the wheel hub to turn is arranged at the top, and a second driving component for driving the wheel hub to rotate is arranged below the driving wheel group; the hub is divided into two split parts along the radial direction, the split parts are radially provided with step holes and form two large-diameter ends of the split parts of the hub, and a speed reducer of the second driving assembly is arranged in an inner hole of the hub.
2. The small-volume high-load driving wheel set according to claim 1, wherein the first driving component is provided with a first motor, the first motor is connected with an encoder counting shaft and a magnetic encoder, and the first driving component drives the wheel hub to steer through a turbine worm structure.
3. The small-volume high-load driving wheel set according to claim 1, wherein the hub is arranged in the middle of a pi-shaped bracket assembly, and the first driving assembly is fixed on the top of the bracket assembly.
4. The small-volume high-load driving wheel set according to claim 3, wherein the two pi-shaped vertical surfaces of the bracket assembly are both mounting brackets, and the mounting brackets are divided into two detachable parts along the transverse direction, wherein the two parts are a first bracket positioned above and a second bracket positioned below; the joint surfaces of the first bracket and the second bracket are coincident with the radial direction of the hub.
5. A small-volume high-load driving wheel set according to claim 3, wherein the second driving assembly is provided with a second motor, the second motor is arranged between the first driving assembly and the hub, and the second motor drives the hub to rotate through a belt pulley structure.
6. The small-volume high-load driving wheel set according to claim 5, wherein the second motor is located below the pi-shaped transverse surface of the bracket assembly, two gear shafts of the belt pulley structure penetrate through the pi-shaped vertical surface of the bracket assembly, and the two gear shafts are connected through a vertically arranged belt body.
7. The small-volume high-load driving wheel set according to claim 6, wherein one side of the speed reducer, which is close to the belt, is provided with an input shaft, and the other side of the speed reducer is provided with an output flange; the input shaft is driven by the belt body to rotate and sequentially drives the output flange and the hub to rotate.
8. The small-size heavy-load driving wheel set according to claim 7, wherein a pressing plate is arranged beside the input shaft and fixed on the vertical surface of the bracket assembly, the pressing plate is clamped with a shaft sleeve of the input shaft through a spline, and the shaft sleeve is fixedly connected with a shell of the speed reducer.
9. The small volume high load drive wheel assembly of claim 4, wherein the transverse face of the bracket assembly is pi-shaped as a disk.
10. The small-volume high-load driving wheel set according to claim 1, wherein the cambered surface of the hub is wrapped with an outer layer structure made of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321666624.8U CN220147141U (en) | 2023-06-28 | 2023-06-28 | Driving wheel group with small volume and heavy load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321666624.8U CN220147141U (en) | 2023-06-28 | 2023-06-28 | Driving wheel group with small volume and heavy load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220147141U true CN220147141U (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321666624.8U Active CN220147141U (en) | 2023-06-28 | 2023-06-28 | Driving wheel group with small volume and heavy load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220147141U (en) |
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2023
- 2023-06-28 CN CN202321666624.8U patent/CN220147141U/en active Active
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