CN210454324U

CN210454324U - Integrated electric Mecanum wheel

Info

Publication number: CN210454324U
Application number: CN201921423941.0U
Authority: CN
Inventors: 徐聪; 陈星彤
Original assignee: Hunan Jielutu Intelligent Technology Co Ltd
Current assignee: Hunan Jielutu Intelligent Technology Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-05
Anticipated expiration: 2029-08-29

Abstract

The utility model belongs to an integral type electronic mecanum wheel, including the wheel hub of integral type, wheel hub includes the wheel hub body, and the periphery both ends of wheel hub body are connected with annular rim through Y type strengthening rib, and both ends annular rim border department all be equipped with the concave splenium that is circumference equipartition, the bottom surface of concave splenium and wheel hub body the central axis be 45 contained angles, be equipped with the driven wheel shaft hole on it, the driven wheel shaft hole on the concave splenium that both ends are relative is coaxial; the hub motor comprises a hub body, a rotor, a mounting positioning shaft, a hub end cover, a connecting part and a connecting part, wherein an open cylindrical accommodating cavity is formed in one axial end in the hub body; the utility model discloses a wheat wheel intensity is high, bears greatly, and the operation is difficult for jolting long service life.

Description

Integrated electric Mecanum wheel

Technical Field

The utility model belongs to the technical field of mecanum wheel, concretely relates to electronic mecanum wheel of integral type.

Background

The Mecanum wheel is generally formed by combining a hub and a small roller wheel surrounding the hub, the axis of the small roller wheel of the Mecanum wheel generally forms an included angle of 45 degrees with the axis of the hub, and when a plurality of Mecanum wheels are reasonably matched, a trolley carried on the Mecanum wheel can move in any direction; however, the power device of the Mecanum wheel is basically arranged externally and needs to be carried on a chassis of the trolley, and the assembly mode with the externally arranged power wastes a large space; although the motor integrated Mecanum wheel appears in the market at present, the maintenance is troublesome due to the complex internal structure of the motor integrated Mecanum wheel, the hub is an assembled hub, the strength and the rigidity of the hub are poor, the combined Mecanum wheel is not round and smooth, the operation jolts, and after the operation time is long, screws for fastening the left hub and the right hub into the integrated hub are easy to loosen, so that the hub is deformed, and the motor integrated Mecanum wheel is not suitable for popularization.

Disclosure of Invention

The problem of the electronic mecanum wheel of integral type that exists among the above-mentioned prior art combination formula wheel hub circularity is poor and intensity and rigidity are also poor, difficult maintenance is solved, the utility model provides an electronic mecanum wheel of new integral type is in order to deal with above-mentioned problem.

In order to achieve the above object, the technical solution of the present invention is: an integrated electric Mecanum wheel comprises a wheel hub, wherein a wheel hub motor is arranged in the wheel hub, the outer edge of the wheel hub is rotatably connected with driven roller sets which are uniformly distributed in the circumferential direction, the central axis of the wheel hub and the central axis of the driven roller sets form an included angle of 45 degrees, the wheel hub comprises a wheel hub body, two ends of the periphery of the wheel hub body are connected with annular wheel rims through Y-shaped reinforcing ribs which are uniformly distributed in the circumferential direction, concave-pressing portions which are uniformly distributed in the circumferential direction are arranged at the edges of the annular wheel rims at two ends, the bottom surfaces of the concave-pressing portions and the central axis of the wheel hub body form an included angle of 45 degrees, driven wheel shaft holes are formed in; this internal axial one end of wheel hub is provided with the columniform holding chamber of open-ended, holding intracavity fixed surface is provided with wheel hub motor's rotor, be equipped with the stator of well expert in the rotor, the well expert department of stator has worn the installation location axle of relatively fixed with it, wheel hub sets up the one end in holding chamber and still is connected with the wheel hub end cover, the one end of installation location axle is passed wheel hub end cover protrusion in wheel hub, is equipped with connecting portion, the installation location axle rotates with wheel hub to be connected.

Furthermore, one side face of the concave portion is parallel to the central axis of the hub body, and included angles between the other side faces and the bottom face of the concave portion are obtuse angles.

Furthermore, a through hole is formed in the central axis of the mounting and positioning shaft, and a wire passing hole communicated with the through hole is further formed in the outer wall of the mounting and positioning shaft.

Furthermore, cambered surface reinforcing ribs are arranged between the annular rims on the hub body.

Furthermore, the driven roller group comprises an installation shaft, a roller, a rubber outer ring, a combined bearing and a needle roller bearing, wherein the rubber outer ring is arranged on the roller outer ring, a flange is arranged in the middle of the inner ring, the roller is rotatably connected with the installation shaft through the combined bearing and the needle roller bearing which are symmetrically arranged on two sides of the flange on the inner ring, the roller is parallel and level with the end faces of two ends of the rubber outer ring, and one end, far away from the flange, of the needle roller bearing protrudes out of the roller.

Furthermore, the two ends of the roller are cylindrical, the middle of the roller is arc-shaped, and the two ends of the roller and the middle of the roller are in integral smooth transition.

Further, the connecting part is a connecting flange.

The utility model has the advantages that:

1. the utility model discloses a to the structure of wheel hub integration and the design of Y type strengthening rib on it, make the utility model discloses wheel hub intensity for traditional combination formula is stronger, can possess bigger bearing capacity, and also because of concave splenium on the annular rim in both ends is with wheel hub integrated into one piece simultaneous moulding, does not have the influence of equipment error to whole dress back wheel hub's circularity, but guarantees the accuracy in driven wheel shaft hole on the concave splenium completely through machining center to the circularity after the driven roller set equipment is guaranteed to the accuracy, makes the utility model discloses the operation is not jolted.

2. The utility model discloses a be equipped with the cambered surface strengthening rib between annular rim on the wheel hub body and further strengthened wheel hub's intensity and reduced the possibility that wheel hub warp, very big improvement the utility model discloses a bearing capacity.

3. The utility model discloses a make to the inside combination bearing of driven roller set, bearing's overall arrangement the utility model discloses can bear bigger radial force, improve life.

4. The utility model discloses a holistic design of wheel hub makes the utility model discloses an easy moulding-die shaping of wheel hub, and the side design through concave splenium makes the utility model discloses an easy drawing of patterns of wheel hub.

5. The utility model discloses an ingenious design to in-wheel motor makes the utility model discloses an in-wheel motor's stator and each line on it easily tear out the wheel hub body to be convenient for various overhauls and changes.

Drawings

Fig. 1 is a schematic axial side structure diagram of an embodiment of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a sectional view taken along line C-C of fig. 2.

Fig. 4 is a sectional view taken along line B-B of fig. 3.

Fig. 5 is an exploded view of fig. 1.

Fig. 6 is a schematic structural view of the driven roller group of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1-6, the structure of the present invention is: an integrated electric Mecanum wheel comprises an integrated hub 1, wherein the hub 1 comprises a hub body 11, an annular rim 12 and Y-shaped reinforcing ribs 13; the two ends of the periphery of the hub body 11 are connected with an annular rim 12 through Y-shaped reinforcing ribs 13 which are uniformly distributed on the two ends of the periphery of the hub body 11 in the circumferential direction, concave parts 121 which are uniformly distributed in the circumferential direction are arranged on the edges of the annular rim 12 at the two ends, an included angle of 45 degrees is formed between the bottom surface 1212 of each concave part 121 and the central axis of the hub body 11, a driven wheel shaft hole 122 is arranged on each concave part 121, the driven wheel shaft holes 122 on the concave parts 121 opposite to the two ends are coaxial, so that the driven roller set 2 can be mounted conveniently, and an included angle of 45; an open cylindrical accommodating cavity 111 is formed in one axial end of the hub body 11, a rotor 31 of the hub motor 3, namely motor magnetic steel, is embedded in the inner surface of the accommodating cavity 111, a hub end cover 5 is fixed to a left end screw of the accommodating cavity 111, the mounting and positioning shaft 4 penetrates through the hub end cover 5 and extends into the accommodating cavity 111 to be rotatably connected with the hub 1 and the hub end cover 5, a stator 32 is connected to a position key, corresponding to the rotor 31, on the mounting and positioning shaft 4, the stator 32 comprises a motor silicon steel sheet and a motor coil wound on the motor silicon steel sheet, the stator 32 and the rotor 31 form the hub motor 3, and clamp springs matched with the mounting and positioning shaft 4 are arranged on two sides of the stator 32 and used for limiting axial movement of the stator 32; in this embodiment, the rightmost end of the mounting and positioning shaft 4 is connected with a bearing 6, an outer ring of the bearing 6 is in transition fit with a hub body 11 of the hub 1, the right end of the outer ring abuts against the hub body 11, and the left end of an inner ring of the bearing 6 is abutted against by a clamp spring on the mounting and positioning shaft 4; the hub end cover 5 and the mounting and positioning shaft 4 are rotatably connected through another bearing 6, specifically, the outer ring of the bearing 6 is in transition fit with the hub end cover 5, the right end of the outer ring is abutted by a flange on the hub end cover 5, the left end of the outer ring is abutted by a clamp spring mounted on the hub end cover 5, and the inner ring of the bearing 6 is correspondingly abutted and fixed on the mounting and positioning shaft 4.

In this embodiment, a through hole 42 is formed on the central axis of the mounting and positioning shaft 4, and a wire passing hole 43 communicated with the through hole 42 is further formed on the outer wall of the mounting and positioning shaft 4 for electrically connecting the stator 32, so that when an induction part needs to be added, a convenient connection wire can be directly added at the right end of the through hole 42. Of course, an inclined hole can be formed in the mounting and positioning shaft 4 to directly meet the wiring requirement of the stator 32, but the implantation of a plurality of induction parts is inconvenient in the later period.

As a preferred technical solution of the present design, the first side 1211 of the depressed portion 121 is parallel to the central axis of the hub body 11, and the included angle between the other side and the bottom surface of the depressed portion 121 is an obtuse angle, so as to facilitate the demolding.

As a preferred technical solution of the present design, the Y-shaped reinforcing rib 13 is disposed corresponding to the concave portion 121, and the concave portion 121 is disposed at a fork of the Y-shaped upper end of the Y-shaped reinforcing rib 13, so that the force applied to the concave portion 121 can be uniformly and reasonably distributed on the Y-shaped reinforcing rib 13.

As an optimal technical scheme of this design, be equipped with cambered surface strengthening rib 14 on the wheel hub body 11 between annular rim 12, avoided 11 both ends annular rim 12 of wheel hub body's relatively isolated, shock-resistant, make the combination of wheel hub body 11, annular rim 12, Y type strengthening rib 13 inseparabler through the design of cambered surface strengthening rib 14, an organic whole, increased wheel hub 1's bulk strength.

As a preferred technical scheme of the design, the driven roller set 2 includes an installation shaft 21, a roller 22, a rubber outer ring 23, a combined bearing 24 and a needle roller bearing 25, the rubber outer ring 23 is arranged on the outer ring of the roller 22, a flange is arranged in the middle of the inner ring, the roller 22 and the rubber outer ring 23 are integrally formed through a rubber coating process, the end faces of the two ends are flush, the combined bearing 24 and the needle roller bearing 25 are symmetrically arranged on two sides of the flange of the inner ring of the roller 22 in sequence, one end, far away from the flange, of the needle roller bearing 25 protrudes out of the roller 22 and is convenient to abut against the bottom surface of the concave portion 121 so as to axially limit the driven roller set 2, the installation shaft 21 penetrates through the combined bearing 24 and the needle roller bearing 25 to be rotatably connected with the.

As a preferred technical scheme of this design, roller 22 both ends are the cylinder type, the middle part is the circular arc type, roller 22 both ends and its whole smooth transition in middle part are convenient for the fastening and the antiskid of rubber outer lane 23, improve driven roller set 2's life.

As a preferred technical solution of the present design, the connection portion 41 is a connection flange, which is more reliable, and of course, in a case of low load requirement, the connection portion 41 may be directly an optical axis and may be connected to the vehicle body through a mounting hole.

During assembly, the driven roller set 2 except for the mounting shaft 21 can be assembled for standby in advance, the standby driven roller set 2 is positioned between the opposite concave parts 121 on the hub 1, the mounting shaft 21 penetrates through the driven axle hole 122 of the concave part 121 at one end, the standby driven roller set 2 is abutted into the other opposite driven axle hole 122, and the mounting shaft 21 is protruded out of the two ends of the concave part 121, and nuts are fastened to complete the assembly of the driven roller set 2 and the hub 1; install the fixed wheel hub end cover 5 that has bearing 6 again on installation location axle 4 from a left side to the right side in proper order, the jump ring, the key, stator 32, the jump ring, the equipment of the insert part of whole holding chamber 111 is accomplished to the bearing, inserts until wheel hub end cover 5 and wheel hub 1 contact support to holding chamber 111 and lean on, accomplishes with wheel hub 1 through the fixed wheel hub end cover of screw 5, the utility model discloses holistic equipment, the utility model discloses again through connecting portion 41 and applied automobile body fixed connection, through installation location axle 4 in through-hole 42 with use the automobile body realize the electricity and be connected and can use, when consequently overhauing and changing, only need demolish the screw on the wheel hub end cover 5, can shift out wheel hub 1 that has driven roller set 2 and expose inside stator 32 and each connecting wire.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. An integrated electric Mecanum wheel comprises a wheel hub (1), a wheel hub motor (3) is arranged in the wheel hub (1), the outer edge of the hub (1) is rotationally connected with driven roller sets (2) which are uniformly distributed in the circumferential direction, the central axis of the hub (1) and the central axis of the driven roller set (2) form an included angle of 45 degrees, it is characterized in that the hub (1) comprises a hub body (11), two ends of the periphery of the hub body (11) are connected with an annular rim (12) through Y-shaped reinforcing ribs (13) which are uniformly distributed on the periphery of the hub body in the circumferential direction, concave-pressing parts (121) which are uniformly distributed in the circumferential direction are arranged on the edges of the annular rim (12) at the two ends, the bottom surface (1212) of the concave pressing part (121) forms an included angle of 45 degrees with the central axis of the hub body (11), a driven axle hole (122) is formed in the concave pressing part (121), and the driven axle holes (122) on the concave pressing part (121) with two opposite ends are coaxial; the hub motor is characterized in that an open accommodating cavity (111) is formed in one axial end of the hub body (11), a rotor (31) of a hub motor (3) is fixedly arranged on the inner surface of the accommodating cavity (111), a through stator (32) is arranged in the rotor (31), an installation positioning shaft (4) which is relatively fixed with the stator (32) penetrates through the through position of the stator (32), a hub end cover (5) is further connected to one end, provided with the accommodating cavity (111), of the hub (1), one end of the installation positioning shaft (4) penetrates through the hub end cover (5) to protrude out of the hub (1) and is provided with a connecting portion (41), and the installation positioning shaft (4) is rotatably connected with the hub (1).

2. The integrated electric mecanum wheel according to claim 1, wherein one side surface of the depressed portion (121) is parallel to the central axis of the hub body (11), and the other side surfaces form an obtuse angle with the bottom surface of the depressed portion (121).

3. The integrated electric mecanum wheel as claimed in claim 1, wherein a through hole (42) is formed on the central axis of the mounting and positioning shaft (4), and a wire passing hole (43) communicated with the through hole (42) is further formed on the outer wall of the mounting and positioning shaft (4).

4. An integrated electric mecanum wheel according to claim 1 wherein cambered stiffeners (14) are provided on the hub body (11) between the annular rims (12).

5. The integrated electric Mecanum wheel as claimed in any one of claims 1 to 4, wherein the driven roller set (2) comprises a mounting shaft (21), a roller (22), a rubber outer ring (23), a combined bearing (24) and a needle bearing (25), the rubber outer ring (23) is arranged on the outer ring of the roller (22), a flange is arranged in the middle of the inner ring, the roller (22) is rotatably connected with the mounting shaft (21) through the combined bearing (24) and the needle bearing (25) which are symmetrically arranged on two sides of the flange of the inner ring, the end faces of the roller (22) and the two ends of the rubber outer ring (23) are flush, and one end of the needle bearing (25) far away from the flange protrudes out of the roller (22).

6. The integrated electric mecanum wheel according to claim 5, wherein the roller (22) is cylindrical at both ends and circular-arc in the middle, and the both ends of the roller (22) are smoothly transited to the middle of the roller.

7. The integrated electric mecanum wheel according to claim 6, wherein the attachment portion (41) is an attachment flange.