CN210792686U

CN210792686U - Mecanum omni-directional wheel

Info

Publication number: CN210792686U
Application number: CN201921882006.0U
Authority: CN
Inventors: 谢飞翔; 刘勇; 李留罐
Original assignee: Suzhou Cpugl Roller Co ltd
Current assignee: Suzhou Cpugl Roller Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-19
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a Mecanum omni-directional wheel, which comprises a wheel hub, two baffle plates and a plurality of roller bodies, wherein the two baffle plates are respectively fixed with two end surfaces of the wheel hub; the roller body is arranged around the axial direction of the hub, and the axis of the roller body form an angle of 45 degrees; the roller body is rotatably connected with the two separation blades through a connecting shaft, fasteners are detachably arranged at two ends of the connecting shaft, and the connecting shaft and the two separation blades can be fixed through the fasteners. The utility model discloses be convenient for change the roll body.

Description

Mecanum omni-directional wheel

Technical Field

The utility model relates to a wheelset accessory field, concretely relates to mecanum omniwheel.

Background

Unlike conventional wheels, mecanum wheels are assembled from a number of rollers as required, typically with the hub and rollers designed at 45 degrees to each other. Through the combined use of a plurality of Mecanum wheels, the vehicle body can move and rotate in any direction in the plane. Usually, a complete set of mecanum wheel motion system is driven by a plurality of motors synchronously and is adjusted in speed precisely to realize omnidirectional movement of the vehicle body.

In the process of replacing the roller in the prior art, the shaft inserted into the roller needs to be drawn out first, so that the roller can be separated from the hub. The above-mentioned separation is inconvenient for the roller replacement because the roller and the hub are not easily separated because of a certain damping force when the shaft is withdrawn from the inside of the roller.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a mecanum omniwheel, its roll body of being convenient for change.

In order to solve the technical problem, the utility model provides a Mecanum omni wheel, which comprises a wheel hub, two blocking pieces and a plurality of roller bodies, wherein the two blocking pieces are respectively fixed with two end surfaces of the wheel hub; the roller body is arranged around the axial direction of the hub, and the axis of the roller body form an angle of 45 degrees; the roller body is rotatably connected with the two separation blades through a connecting shaft, fasteners are detachably arranged at two ends of the connecting shaft, and the connecting shaft and the two separation blades can be fixed through the fasteners.

Furthermore, the two ends of the roller body are embedded with combined bearings, and the end faces of the combined bearings protrude out of the end faces of the roller body.

Further, both sides of the roller body are provided with abutting pieces, and both ends of the abutting pieces are respectively attached to the combined bearing and the blocking piece so as to make up for installation gaps.

Further, the abutting piece is a spring washer or a wave spring.

Further, the enveloping surface formed by all the roller bodies in a surrounding mode is circular.

Further, the joint of the connecting shaft and the fastener is coated with thread glue.

Furthermore, a plurality of threaded holes are formed in the two blocking pieces, and the hub can be in key connection or flange connection with the driving piece.

Furthermore, a plurality of positioning holes are formed in the hub and the two baffles.

Further, the outside of roll body cladding has the protective layer.

The utility model has the advantages that:

when dismantling the roll body, earlier with two fasteners and connecting axle separation, then roll body and the connecting axle that are located between two separation blades can directly break away from with the separation blade to need not connecting axle and roll body separation alright with the separation that can realize roll body and wheel hub, thereby the change of the roll body of being convenient for.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a schematic layout view of the roller body in the present invention;

FIG. 3 is a schematic structural view of a roller body in the present invention;

fig. 4 is a cross-sectional view of the roller body of the present invention;

fig. 5 is a schematic structural view of the middle hub and the baffle plate of the present invention.

The reference numbers in the figures illustrate: 1. a hub; 2. a baffle plate; 21. a threaded hole; 22. mounting grooves; 23. positioning holes; 3. a roller body; 31. a combination bearing; 32. an abutting member; 33. a protective layer; 4. a connecting shaft; 41. a fastener.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-5, an embodiment of mecanum omni wheel of the present invention includes a hub 1, two blocking pieces 2 and a plurality of roller bodies 3, wherein the two blocking pieces 2 are fixed to both end surfaces of the hub 1, and the hub 1 and the two blocking pieces 2 form a frame of the mecanum omni wheel. All roll bodies 3 all encircle the equidistant setting of the axial of wheel hub 1, offer the mounting groove 22 that is used for placing the 3 tip of roll body on two separation blades 2. Connecting shaft 4 is worn to be equipped with in the inside of roll body 3, and the both ends detachable of connecting shaft 4 is connected with fastener 41 simultaneously, and when roll body 3 was placed in mounting groove 22, connecting shaft 4 was located between two separation blades 2, utilizes two fasteners 41 to connect connecting shaft 4 and two separation blades 2 fixed connection this moment. Wherein, the two ends of the connecting shaft 4 can be jointed with the baffle pieces 2, and a certain gap can be left. When dismantling the roll body 3, earlier two fasteners 41 and connecting axle 4 separation, then roll body 3 and the connecting axle 4 that are located between two separation blades 2 can directly be taken out from mounting groove 22 to need not to separate connecting axle 4 and roll body 3 alright with the separation that can realize roll body 3 and wheel hub 1, thereby the change of the roll body 3 of being convenient for.

Referring to fig. 1, 3 and 4, in the present embodiment, the fastening member 41 may be a fastening screw, and certainly, the connecting shaft 4 and the fastening member 41 may also be other detachable connection methods such as riveting. In order to increase the fastening force between the connecting shaft 4 and the two fastening members 41, the joint of the connecting shaft 4 and the fastening members 41 is coated with a threaded glue.

Referring to fig. 1 and 2, all the roller bodies 3 are spindle bodies, and the roller bodies 3 placed in the mounting grooves 22 are rotatably connected to the hub 1. The axes of the roller bodies 3 and the axes of the wheel hubs 1 form 45 degrees, the Mecanum omni wheels are symmetrical in pairs when being assembled, the shafts of the roller bodies 3 of all the Mecanum omni wheels point to the center of the chassis, and therefore the enveloping surface formed by all the roller bodies 3 in a surrounding mode is circular. In the rotating process of the Mecanum omni wheel, friction force can be generated by the friction between the roller body 3 and the ground, and the direction of the friction force is opposite to the axial direction of the roller body 3, so that the friction force borne by the Mecanum omni wheel is 45 degrees to the direction of the roller body 3, and the omni-directional motion can be realized.

Referring to fig. 1 and 3, a combined bearing 31 is embedded in each of the two end portions of the roller body 3, and in this embodiment, the combined bearing 31 is preferably a needle roller-thrust cylindrical roller bearing, and the bearing can simultaneously bear large axial load and radial load; and the end surfaces of the two combined bearings 31 protrude out of the end surface of the roller body 3. The two sides of the two roller bodies 3 are provided with the abutting pieces 32, the two ends of the two abutting pieces 32 are respectively abutted to the combined bearing 31 and the separation blade 2, and the two abutting pieces 32 are sleeved on the connecting shaft 4 to make up the gap between the roller bodies 3 and the separation blade 2 when the roller bodies are installed. The abutting member 32 is preferably a spring washer or a wave spring in this embodiment, and the accumulated tolerance generated during the machining and the assembly can be offset by the abutting member 32 to remove the installation gap, and the noise can be reduced. In addition, the outside of the roller body 3 is covered with a protective layer 33, and the protective layer 33 is preferably polyurethane-coated in this embodiment. The protective layer 33 can reduce wear of the roller body 3 and also reduce noise.

Referring to fig. 1 and 5, the two blocking pieces 2 are located at two sides of the hub 1, and a plurality of threaded holes 21 are formed in the two blocking pieces 2, so that the blocking pieces 2 can be conveniently connected with other components. In addition, the hub 1 can be connected in different ways such as key connection or flange connection according to different selective key connections of the driving piece, so that the assembly and the use are convenient.

Referring to fig. 1 and 5, the hub 1 and the baffle 2 are respectively provided with a plurality of positioning holes 23, and positioning pins and the like can be inserted into the positioning holes 23. The positioning holes 23 and the positioning pins inserted therein can increase the accuracy of the positions of the hub 1 and the two blades 2 when assembled, and the positioning pins can provide shear resistance. So as to increase the use performance of the Mecanum omni wheel.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A Mecanum omni wheel is characterized by comprising a wheel hub, two separation blades and a plurality of roller bodies, wherein the two separation blades are respectively fixed with two end faces of the wheel hub; the roller body is arranged around the axial direction of the hub, and the axis of the roller body form an angle of 45 degrees; the roller body is rotatably connected with the two separation blades through a connecting shaft, fasteners are detachably arranged at two ends of the connecting shaft, and the connecting shaft and the two separation blades can be fixed through the fasteners.

2. A mecanum omni wheel according to claim 1, wherein a combination bearing is embedded at both ends of the roller body, and the end surface of the combination bearing protrudes from the end surface of the roller body.

3. A mecanum omni wheel according to claim 2, wherein the roller body is provided with an abutting member at both sides, and both ends of the abutting member are respectively engaged with the combination bearing and the blocking piece to compensate for the installation gap.

4. A mecanum omni wheel according to claim 3 wherein the abutment is a spring washer or a wave spring.

5. A mecanum omni wheel according to claim 1 wherein all of the roller bodies surround to form an envelope surface that is circular.

6. A mecanum omni wheel according to claim 1, wherein the connection of the connection shaft and the fastener is coated with a threaded glue.

7. A mecanum omni wheel according to claim 1 wherein threaded holes are formed in both of the stop plates, and the hub is capable of being keyed or flanged to a driving member.

8. A mecanum omni wheel according to claim 1 wherein the hub and the two stops each have a plurality of locating holes formed therein.

9. A mecanum omni wheel according to claim 1 wherein the roller body is coated with a protective layer.