CN212959706U

CN212959706U - Travelling wheel

Info

Publication number: CN212959706U
Application number: CN202021481184.5U
Authority: CN
Inventors: 朱忠
Original assignee: Dongguan Zhuolan Automation Equipment Co ltd
Current assignee: Dongguan Zhuolan Automation Equipment Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-04-13
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a traveling wheel, which comprises a planetary reducer, a bracket and a rubber coating layer, wherein the planetary reducer comprises an input gear shaft, an output gear ring and a transmission component; the support includes the stake body, and the periphery of stake body is connected with first bearing, and the output ring gear is connected to the outer lane of first bearing, and the rubber coating layer is connected to the periphery of output ring gear. This walking wheel, adopt and connect outside motor through the input gear axle, the input gear axle passes through drive disk assembly with power transmission to output ring gear, the output ring gear is rotatory, output ring gear lug connection rubber coating layer, it is rotatory to drive rubber coating layer, thereby realize the walking of walking wheel, and wherein the stake body of support has the cavity that holds input gear axle and drive disk assembly, planetary reducer's most part all sets up at stake body inside, thereby avoid planetary reducer to expose, effectively prevent planetary reducer from touchhing other objects in the motion process, improve the trafficability characteristic of walking wheel, this utility model is used for walking wheel technical field.

Description

Travelling wheel

Technical Field

The utility model relates to a walking wheel technical field especially relates to a walking wheel.

Background

When current walking wheel was regarded as the power wheel, can connect reduction gear and motor in addition, the motor drives the reduction gear, and the reduction gear drives the walking wheel rotation, and the walking wheel is fixed on the support, through the bottom of the bracket connection object that needs to be driven. The walking wheel is connected with the speed reducer, and particularly when the planetary gear speed reducer is used, the planetary gear speed reducer is large in appearance and small in ground clearance, and the speed reducer easily touches other objects in the moving process of the walking wheel, so that the overall passing performance of the walking wheel is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a walking wheel, can improve the trafficability characteristic.

According to the utility model discloses an embodiment provides a walking wheel, include:

the planetary speed reducer comprises an input gear shaft, an output gear ring and a transmission component which is in transmission connection between the input gear shaft and the output gear ring;

the support comprises an annular support body, the support body is provided with a cavity for accommodating the input gear shaft and the transmission component, the periphery of the support body is connected with a first bearing, and the outer ring of the first bearing is connected with the output gear ring; and

the periphery of the output gear ring is connected with the rubber coating layer.

The travelling wheel at least has the following beneficial effects: adopt planetary reducer, obtain great reduction ratio, wherein connect outside motor through the input gear axle, the input gear axle passes through drive disk assembly with power transmission to output ring gear, the output ring gear is rotatory, output ring gear lug connection rubber coating, it is rotatory to drive rubber coating, thereby realize the walking of walking wheel, and wherein the stake body of support has the cavity that holds input gear axle and drive disk assembly, planetary reducer's most part all sets up at the stake body insidely, thereby avoid planetary reducer to expose, effectively prevent planetary reducer from touchhing other objects in the motion process, improve the trafficability characteristic of walking wheel, furthermore, planetary reducer, support and rubber coating form the structure of integral type, overall structure is compact.

According to the travelling wheel of the embodiment of the utility model, the planetary reducer is a two-stage planetary reducer, the input gear shaft is provided with a first central gear, the transmission component comprises a first transmission component and a second transmission component, the first transmission component comprises a first ring gear, a plurality of first planet gears and a planet gear carrier, the first planet gears are meshed with the first sun gear, the internal teeth of the first ring gear are engaged with the first planetary gears, the first ring gear is fixedly arranged relative to the bracket, each first planetary gear is hinged with the planetary gear carrier, the second transmission component comprises a second sun gear and a plurality of second planet gears, the planet gear carrier is coaxially and fixedly connected with the second sun gear, the second planetary gear is meshed with the second sun gear, and the internal teeth of the output ring gear are meshed with the second planetary gear.

According to the embodiment of the utility model provides a walking wheel, the stake body includes the first stake body and the second stake body of coaxial setting, be equipped with first cavity on the first stake body, be equipped with the second cavity on the second stake body, first cavity is used for holding first drive disk assembly, the second cavity is used for holding second drive disk assembly.

According to the utility model discloses the walking wheel, be equipped with a plurality of slotted holes that run through on the circumference of second stake body, each second planetary gear install in corresponding in the slotted hole, second planetary gear with the second stake body is articulated.

According to the utility model discloses the walking wheel, the walking wheel still includes first flange and second flange, first flange fixed mounting in the outside of first stake body, second flange fixed mounting in the outside of second stake body.

According to the utility model discloses the walking wheel, the one end that is close to the outside on the second stake body is equipped with the dead eye bearing hole department installs the second bearing, the input gear shaft is connected with the shaft coupling spare, the shaft coupling spare with the inner circle of second bearing is connected.

According to the utility model discloses the walking wheel, be equipped with the confession on the first flange the centre bore that input gear shaft passed center bore department installs the third bearing, the inner circle of third bearing with the input gear hub connection.

According to the utility model discloses the walking wheel, first bearing has two, two first bearing sets up the both sides of the internal tooth of output ring gear.

According to the utility model discloses the walking wheel, the support still includes the installation department, the installation department with stake body fixed connection, be equipped with a plurality of mounting holes on the installation department.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic structural view of a travelling wheel embodying the present invention;

FIG. 2 is a front view of a travelling wheel embodying the present invention;

FIG. 3 is a schematic sectional view of a traveling wheel according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a first viewing angle of a bracket according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second viewing angle of a bracket according to an embodiment of the present invention;

fig. 6 is a front view of a bracket according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a planetary reducer embodying the present invention;

FIG. 8 is a schematic diagram of a partial configuration of a conventional star drive in accordance with the present invention;

FIG. 9 is a schematic structural view of the second planetary gear and carrier assembly of the embodiment of the present invention;

reference numerals: the planetary reducer comprises a planetary reducer 10, an input gear shaft 11, a first sun gear 111, an output ring gear 12, a first ring gear 13, a first planetary gear 14, a planetary gear carrier 15, a second sun gear 16, a second planetary gear 17, a support 20, a support body 21, a first support body 211, a second support body 212, a first cavity 213, a second cavity 214, a slotted hole 215, a bearing hole 216, an installation part 22, an encapsulating layer 30, a first bearing 40, a first flange 50, a second flange 60, a spacing pad 70, a second bearing 81, a coupling member 82 and a third bearing 83.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, an embodiment of the present invention provides a traveling wheel, including a planetary reducer 10, a support 20, and a rubber coating layer 30, wherein the planetary reducer 10 includes an input gear shaft 11, an output gear ring 12, and a transmission member drivingly connected between the input gear shaft 11 and the output gear ring 12; the support 20 comprises an annular support body 21, the support body 21 is provided with a cavity for accommodating the input gear shaft 11 and the transmission component, the periphery of the support body 21 is connected with a first bearing 40, the outer ring of the first bearing 40 is connected with the output gear ring 12, and the periphery of the output gear ring 12 is connected with the rubber coating layer 30.

The walking wheel of this embodiment, adopt planetary reducer 10, obtain great reduction ratio, wherein connect outside motor through input gear shaft 11, input gear shaft 11 passes through drive disk assembly with power transmission to output ring gear 12, output ring gear 12 is rotatory, output ring gear 12 lug connection rubber coating 30, it is rotatory to drive rubber coating 30, thereby realize the walking of walking wheel, and wherein the stake body 21 of support 20 has the cavity that holds input gear shaft 11 and drive disk assembly, planetary reducer 10's most part all sets up inside stake body 21, thereby avoid planetary reducer 10 to expose, effectively prevent planetary reducer 10 from touchhing other objects in the motion process, improve the trafficability characteristic of walking wheel. In addition, the planetary gear unit 10, the carrier 20 and the encapsulating layer 30 are integrally formed into an integral structure, and the integral structure is compact.

Referring to fig. 3, 7 and 8, in the present embodiment, the planetary reducer 10 is a two-stage planetary reducer, the input gear shaft 11 is provided with a first sun gear 111, and the transmission member includes a first transmission member and a second transmission member, wherein the first transmission member includes a first ring gear 13, a plurality of first planet gears 14, and a planet carrier 15, the first planet gears 14 are engaged with the first sun gear 111, internal teeth of the first ring gear 13 are engaged with the first planet gears 14, the first ring gear 13 is fixedly disposed relative to the carrier 20, and each first planet gear 14 is hinged to the planet carrier 15; the second transmission component comprises a second sun gear 16 and a plurality of second planet gears 17, the planet gear carrier 15 is coaxially and fixedly connected with the second sun gear 16, the second planet gears 17 are meshed with the second sun gear 16, the internal teeth of the output gear ring 12 are meshed with the second planet gears 17, and the second sun gear 16 is provided with a through hole for the input gear shaft 11 to pass through.

Specifically, there are 3 first planetary gears 14, and 3 first planetary gears 14 are uniformly distributed around the first sun gear 111; there are 3 second planet gears 17, and 3 second planet gears 17 are evenly distributed around the second sun gear 16. The first bearings 40 are two in number, and the two first bearings 40 are provided on both sides of the internal teeth of the output ring gear 12.

The planetary reducer 10 adopts a two-stage reducer, so that a large reduction ratio can be obtained, wherein the input gear shaft 11 rotates, and because the first gear ring 13 is fixedly arranged, the first sun gear 111 on the input gear shaft 11 drives each first planetary gear 14 to rotate, and simultaneously each first planetary gear 14 revolves around the input gear shaft 11, so as to drive the planetary gear carrier 15 to rotate, the planetary gear carrier 15 drives the second sun gear 16 to rotate, the second sun gear 16 drives the second planetary gear 17 to rotate, and finally the second planetary gear 17 drives the output gear ring 12 to rotate, so that the reduction transmission of the planetary reducer 10 is realized.

Referring to fig. 4 to 6, in some embodiments, the support body 21 includes a first support body 211 and a second support body 212 coaxially disposed, a first cavity 213 is disposed on the first support body 211, a second cavity 214 is disposed on the second support body 212, the first cavity 213 accommodates a first transmission component, and the second cavity 214 accommodates a second transmission component, so that the overall structure is compact.

In this embodiment, the bracket 20 further includes a mounting portion 22, the mounting portion 22 is substantially in an inverted L shape, the mounting portion 22 is fixedly connected to the bracket body 21, and the mounting portion 22 is provided with a plurality of mounting holes. The walking wheels are connected with the walking trolley through the mounting parts 22 on the bracket 20 and can drive the walking trolley to move. Specifically, the first bracket body 211, the second bracket body 212 and the mounting portion 22 are integrally formed. The inner rings of the two first bearings 40 are coupled to the outer circumference of the second bracket body 212.

In some embodiments, the second bracket body 212 is provided with a plurality of through slots 215 on the circumference thereof, each slot 215 corresponds to each second planetary gear 17, each second planetary gear 17 is installed in the corresponding slot 215, and the second planetary gears 17 are hinged with the second bracket body 212, as shown in fig. 9. The second sun gear 16 drives the second planetary gears 17 to rotate, and since the second planetary gears 17 are hinged to the second holder body 212, the second planetary gears 17 cannot revolve around the second sun gear 16 but only rotate, so that they drive the output ring gear 12 to rotate.

In this embodiment, the road wheel further includes a first flange 50 and a second flange 60, the first flange 50 is fixedly mounted on the outer side of the first bracket body 211, and the second flange 60 is fixedly mounted on the outer side of the second bracket body 212. Both sides of the bracket body 21 are closed by the first and

second flanges

50 and 60. Wherein a spacer 70 is provided between the first flange 50 and the first planetary gears 14, and the position of the first planetary gears 14 in the axial direction is limited by the spacer 70.

In some embodiments, a bearing hole 216 is formed at one end of the second bracket body 212 close to the outer side, a second bearing 81 is installed at the bearing hole 216, the input gear shaft 11 is connected with a coupling member 82, the input gear shaft 11 is connected with the coupling member 82 through a key, and the coupling member 82 is connected with an inner ring of the second bearing 81; the first flange 50 is provided with a center hole through which the input gear shaft 11 passes, a third bearing 83 is mounted at the center hole, and an inner ring of the third bearing 83 is connected to the input gear shaft 11. The support of the input gear shaft 11 is achieved by the second bearing 81 and the third bearing 83.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A road wheel, comprising:

2. The road wheel of claim 1, wherein: planetary reducer is second grade planetary reducer, be equipped with first sun gear on the input gear axle, the drive disk assembly includes first drive disk assembly and second drive disk assembly, first drive disk assembly includes first ring gear, a plurality of first planetary gear, planet carrier, first planetary gear with first sun gear meshing, the internal tooth of first ring gear with first planetary gear meshing, first ring gear is relative the support is fixed to be set up, each first planetary gear respectively with planet carrier is articulated, second drive disk assembly includes second sun gear and a plurality of second planetary gear, planet carrier with the coaxial fixed connection of second sun gear, second planetary gear with second sun gear meshing, the internal tooth of output ring gear with second planetary gear meshing.

3. The road wheel of claim 2, wherein: the support body comprises a first support body and a second support body which are coaxially arranged, a first cavity is arranged on the first support body, a second cavity is arranged on the second support body, the first cavity is used for containing the first transmission component, and the second cavity is used for containing the second transmission component.

4. The road wheel of claim 3, wherein: the circumference of the second support body is provided with a plurality of through slotted holes, each second planetary gear is arranged in the corresponding slotted hole, and the second planetary gears are hinged with the second support body.

5. The road wheel of claim 3, wherein: the walking wheel further comprises a first flange and a second flange, the first flange is fixedly installed on the outer side of the first support body, and the second flange is fixedly installed on the outer side of the second support body.

6. The road wheel of claim 5, wherein: and one end of the second bracket body, which is close to the outer side, is provided with a bearing hole, a second bearing is installed at the bearing hole, the input gear shaft is connected with a coupling piece, and the coupling piece is connected with an inner ring of the second bearing.

7. The road wheel of claim 5, wherein: the first flange is provided with a central hole for the input gear shaft to pass through, a third bearing is installed at the central hole, and the inner ring of the third bearing is connected with the input gear shaft.

8. The road wheel of claim 1, wherein: the first bearings are two in number, and the two first bearings are arranged on two sides of the internal teeth of the output gear ring.

9. The road wheel of any of claims 1 to 8, wherein: the support still includes the installation department, the installation department with stake body fixed connection, be equipped with a plurality of mounting holes on the installation department.