CN217073919U

CN217073919U - Steel ring for hub motor

Info

Publication number: CN217073919U
Application number: CN202221058700.2U
Authority: CN
Inventors: 尚仙考
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-30
Filing date: 2022-04-30
Publication date: 2022-07-29
Anticipated expiration: 2032-04-30

Abstract

The utility model belongs to the technical field of in-wheel motor, refer in particular to a steel ring for in-wheel motor, including the steel ring main part, the steel ring main part is including the barrel of suit in wheel hub circle, and wherein one end of barrel is formed with annular protruding edge along its radial outside extension, and the other one end suit of barrel is fixed with annular spacing collar, and annular spacing collar and annular are protruding to form the fixed space that carries out axial positioning to wheel hub between following, and annular protruding edge and annular spacing collar all set up a plurality of and are used for connecting the connection mounting hole of end cover. The utility model discloses to connect the mounting hole and set up respectively on protruding edge of annular and annular spacing ring for compare prior art, the thickness of barrel can be thinner, and does not receive connection structure's restriction, thereby can let the overall structure of steel ring lighter, cost reduction and can effectively improve the motor performance.

Description

Steel ring for hub motor

The technical field is as follows:

the utility model belongs to the technical field of in-wheel motor, refer in particular to a steel ring for in-wheel motor.

Background art:

the electric vehicle is widely applied to the aspect of daily life traffic travel, the core component of the electric vehicle is the hub motor, and the performance of the hub motor determines the power performance and the load capacity of the electric vehicle during normal riding.

In the prior art, most of hubs of hub motors applied to electric vehicles are made of steel, and steel rings with certain thicknesses are fixedly connected to the inner rings of the hubs in a sleeved mode, so that the hubs are uniform in wall thickness, heavy in weight and high in processing cost. And the thickness of steel ring is thinner more, and the tile in the wheel hub motor just can be placed more, and the power performance of motor just also is higher more, however, because the both ends terminal surface of steel ring need set up the screw for connect the motor end cover, thereby the aperture of screw has restricted the thickness size of steel ring.

The invention content is as follows:

the utility model aims at providing a steel ring for in-wheel motor will connect the mounting hole to set up on annular protruding edge and annular spacing ring for the thickness of barrel can not receive the restriction, can effectively improve the motor performance, and simple process, low cost.

The utility model discloses a realize like this:

the utility model provides a steel ring for in-wheel motor, including the steel ring main part, the steel ring main part is including the barrel of suit in wheel hub circle, and wherein one end of barrel is formed with annular protruding edge along its radial outside extension, and the other one end suit of barrel is fixed with annular spacing collar, and annular spacing collar and annular are protruding to form the fixed space that carries out axial positioning to wheel hub between following, and annular protruding edge and annular spacing collar all set up a plurality of and are used for connecting the connection mounting hole of end cover.

In the steel ring for the hub motor, the inner diameter of the annular limiting ring is slightly smaller than the outer diameter of the cylinder.

In the steel ring for the hub motor, the annular limiting ring and the cylinder body are fixed through spot welding or girth welding.

In the above-mentioned steel ring for a wheel hub motor, the inner ring of wheel hub is including the centre bore and set up the flaring groove on the both ends mouth of centre bore, annular spacing collar and annular protruding edge are located the flaring inslot that corresponds respectively, and the interior terminal surface of annular spacing collar and annular protruding edge supports respectively and leans on the groove face that corresponds the flaring groove.

In the steel ring for the hub motor, the annular limiting ring or/and the annular convex edge between every two adjacent connecting and mounting holes are/is provided with a notch, and the notch is communicated with a matching gap between the hub inner ring and the cylinder body.

Compared with the prior art, the utility model outstanding advantage is:

the connecting and mounting holes are respectively arranged on the annular convex edge and the annular limiting ring, so that compared with the prior art, the thickness of the cylinder body can be thinner, and the connecting and mounting holes are not limited by a connecting structure, so that the overall structure of the steel ring is lighter, the cost is reduced, and the performance of the motor can be effectively improved; meanwhile, the assembly of the steel ring main body can be completed only by inserting the cylinder into the inner ring of the hub and then sleeving and fixing the annular limiting ring on the cylinder, and the assembly process is simple in requirement and low in difficulty.

Description of the drawings:

fig. 1 is a schematic view of a wheel hub of the present invention;

FIG. 2 is a schematic view of the annular stop collar of the present invention;

FIG. 3 is a first schematic view of the wheel hub and the steel ring main body of the present invention;

fig. 4 is a second schematic view of the wheel hub and the steel ring main body according to the present invention.

In the figure: 1. a hub; 2. a barrel; 3. an annular convex edge; 4. an annular spacing ring; 5. connecting the mounting holes; 6. a central bore; 7. a flared groove; 8. and (4) a notch.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 4:

the utility model provides a steel ring for in-wheel motor, including the steel ring main part, the steel ring main part is including the barrel 2 of suit in 1 circles of wheel hub, and wherein one end of barrel 2 is formed with the protruding edge 3 of annular along its radial outside extension, and the other one end suit of barrel 2 is fixed with annular spacing collar 4, and annular spacing collar 4 and annular are protruding to form the fixed space that carries out axial positioning to wheel hub 1 along 3 between along, and annular is protruding to have all seted up a plurality of connection mounting hole 5 that is used for connecting the end cover along 3 and annular spacing collar 4.

The utility model respectively arranges the connecting and mounting holes 5 on the annular convex edge 3 and the annular spacing ring 4, so that compared with the prior art, the thickness of the cylinder body 2 can be thinner and is not limited by the connecting structure, thereby the whole structure of the steel ring can be lighter, the cost is reduced and the motor performance can be effectively improved; meanwhile, the utility model discloses only need insert in 1 inner circle of wheel hub, fix the 4 suit of annular spacing collar on barrel 2 earlier barrel 2, can accomplish the assembly of steel ring main part, its assembly process requirement is simple, and the degree of difficulty is lower.

Furthermore, in order to enable the annular limiting ring 4 to be stably and reliably sleeved on the cylinder 2 during assembly, the inner diameter of the annular limiting ring 4 is slightly smaller than the outer diameter of the cylinder 2.

In addition, in order to ensure that the connection between the annular limiting ring 4 and the cylinder body 2 can be firm, stable and not easy to split, the annular limiting ring 4 and the cylinder body 2 are fixed through spot welding or girth welding.

Meanwhile, a fixing space for axially positioning the hub 1 is formed between the annular limiting ring 4 and the annular convex edge 3, and in order to avoid the exposure of the annular limiting ring 4 and the annular convex edge 3 to the outside, the inner ring of the hub 1 comprises a central hole 6 and flaring slots 7 arranged at two ports of the central hole 6, the annular limiting ring 4 and the annular convex edge 3 are respectively positioned in the corresponding flaring slots 7, and the inner end faces of the annular limiting ring 4 and the annular convex edge 3 are respectively abutted against the slot faces of the corresponding flaring slots 7.

In addition, in order to avoid that the rust-proof paint can not enter the matching gap between the inner ring of the hub 1 and the cylinder body 2 during subsequent rust-proof treatment, so that the matching position of the steel ring main body and the wheel rim is easy to oxidize and corrode and further the steel ring main body and the wheel rim are connected to fall off, a gap 8 is formed in the annular limiting ring 4 or/and the annular convex edge 3 between the adjacent two connecting and mounting holes 5, and the gap 8 is communicated with the matching gap between the inner ring of the hub 1 and the cylinder body 2.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a steel ring for in-wheel motor, including the steel ring main part, its characterized in that: the steel ring main part is including cylinder (2) of suit in wheel hub (1) inner circle, wherein one end of cylinder (2) is formed with annular protruding edge (3) along its radial outside extension, the other one end suit of cylinder (2) is fixed with annular spacing collar (4), annular spacing collar (4) and annular protruding edge (3) between form the fixed space that carries out axial positioning to wheel hub (1), annular protruding edge (3) and annular spacing collar (4) are gone up and all are seted up a plurality of and are used for connecting connection mounting hole (5) of end cover.

2. The steel ring for the hub motor according to claim 1, wherein: the inner diameter of the annular limiting ring (4) is slightly smaller than the outer diameter of the cylinder body (2).

3. A steel ring for an in-wheel motor according to claim 1 or 2, characterized in that: the annular limiting ring (4) and the barrel body (2) are fixed through spot welding or girth welding.

4. The steel ring for the hub motor according to claim 1, wherein: the inner ring of the wheel hub (1) comprises a center hole (6) and flaring grooves (7) arranged at two ports of the center hole (6), the annular limiting ring (4) and the annular convex edge (3) are respectively positioned in the corresponding flaring grooves (7), and the inner end faces of the annular limiting ring (4) and the annular convex edge (3) are respectively abutted against the groove faces of the corresponding flaring grooves (7).

5. The steel ring for the hub motor according to claim 1, wherein: gaps (8) are formed in the annular limiting rings (4) or/and the annular convex edges (3) between every two adjacent connecting and mounting holes (5), and the gaps (8) are communicated with matching gaps between the inner ring of the hub (1) and the cylinder body (2).