CN216507716U

CN216507716U - Free wheel hub

Info

Publication number: CN216507716U
Application number: CN202123248513.9U
Authority: CN
Inventors: 王一平; 王大朋; 邹有能; 何通
Original assignee: Horiba Instruments Shanghai Co ltd
Current assignee: Horiba Instruments Shanghai Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-13
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a free wheel hub which is used for a finished automobile test bench. But the rotatable part sets up the central point of wheel hub body puts, the bearing with but the rotatable part compresses tightly through the dust ring and is connected. The other side of the rotatable part is connected with one end of a constant velocity universal shaft connecting flange, and the other end of the constant velocity universal shaft connecting flange is used for being connected with a torque flange in the whole vehicle test bench. Different from a common tire, the hub part of the free hub provided by the application is not integrally and rigidly connected, but is divided into an inner ring and an outer ring which can independently rotate, the outer ring can be fixed on a tire supporting device through a binding belt, the inner side of the inner ring can be fixed with a driving shaft of the tire, and the outer side of the inner ring rotates together with a measuring instrument of a dynamometer, so that the power transmission of the driving shaft of the tire is not influenced.

Description

Free wheel hub

Technical Field

The utility model relates to an automobile test bench system, in particular to a free hub.

Background

The whole vehicle test bench is more and more widely applied to the research and development and test stages of vehicles at present, and is used for scientifically judging whether the performance of the vehicles can meet the design requirements or not before the vehicles are put into the market. When the free wheel hub is required to be adopted in the vehicle testing process instead of directly fixing the bearing by using the rigid bearing seat, a special device is required to fix the free wheel hub, so that the power of the vehicle can pass through the tire with less power loss on the premise of safely and reliably fixing the vehicle and reach a dynamometer measuring instrument, how to effectively fix the vehicle can bear the weight of the vehicle, meanwhile, the tire of the vehicle cannot be limited to transmit the power, and the power loss is low as far as possible, which is of great importance.

It is noted that the information disclosed in this background section of the utility model is only for enhancement of understanding of the general background of the utility model, and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a free wheel hub which is conveniently fixed on a matched tire supporting device, can bear the weight of a vehicle, and does not influence a tire driving shaft to transmit power to measuring equipment.

In order to achieve the above object, the present invention provides a free wheel hub for a test rack of a whole vehicle, the free wheel hub comprising a wheel hub body, the wheel hub body being provided therein with a bearing, a rotatable portion and a constant velocity universal shaft connecting flange;

the rotatable part is arranged at the center of the hub body;

the bearing is in compression connection with the rotatable part through a dustproof ring;

but the opposite side of rotatable part with the one end of constant velocity cardan shaft connecting flange is connected, the other end of constant velocity cardan shaft connecting flange be used for with the torque flange connection in the whole car test bench.

Optionally, one side of the rotatable portion is further provided with internal adaptor flange bolts.

Optionally, one side of the rotatable portion is further provided with a first dust ring.

Optionally, the other side of the rotatable portion is further provided with a second dust ring.

Optionally, a bearing end cap is disposed on the bearing.

Optionally, a bearing outer end cover is further arranged on the bearing.

Optionally, a bearing seat is further disposed on the bearing.

Optionally, the outer ring of the hub body is for connection to a tire.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a free wheel hub which is used for a whole vehicle test bench. But the rotatable part sets up the central point of wheel hub body puts, the bearing with but the rotatable part compresses tightly through the dust ring and is connected. But the opposite side of rotatable part with the one end of constant velocity cardan shaft connecting flange is connected, the other end of constant velocity cardan shaft connecting flange be used for with the torque flange connection in the whole car test bench. Different from a common tire, the hub part of the free hub provided by the application is not integrally and rigidly connected, but is divided into an inner ring and an outer ring which can independently rotate, the outer ring can be fixed on a tire supporting device through a binding belt, the inner side of the inner ring can be fixed with a driving shaft of the tire, and the outer side rotates together with a measuring instrument of a dynamometer, so that the power transmission of the driving shaft of the tire is not influenced.

Drawings

Fig. 1 is a schematic structural view of a free hub according to an embodiment of the present invention;

101-tire, 102-hub outer ring, 103-bearing seat outer ring, 104-bearing end cover, 105-bearing, 106-first dustproof ring, 107-inner transfer flange bolt, 108-bearing outer end cover, 109-second dustproof ring, 110-constant velocity universal shaft connecting flange and 111-central hollow rotating shaft.

Detailed Description

The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1, an embodiment of the present invention provides a free wheel hub for a test rack of a whole vehicle, the free wheel hub includes a hub body, and a bearing 105, a rotatable portion, and a constant velocity universal shaft connecting flange 110 are disposed in the hub body. The rotatable portion is arranged at the central position of the hub body, and the bearing 10 is in compression connection with the rotatable portion through a dustproof ring. The other side of the rotatable part is connected with one end of the constant velocity universal shaft connecting flange 110, and the other end of the constant velocity universal shaft connecting flange 110 is used for being connected with a torque flange in the whole vehicle test bench.

Compared with the prior art, the difference lies in that the free wheel hub that this embodiment provided can be convenient be fixed in supporting tire strutting arrangement on, can bear the weight of vehicle, does not influence on tire drive shaft transmission power to measuring equipment simultaneously yet.

The utility model provides a free wheel hub which is used for a whole vehicle test bench, and comprises a wheel hub body, wherein a bearing 105, a rotatable part and a constant velocity universal shaft connecting flange 110 are arranged in the wheel hub body. The rotatable portion is arranged at the central position of the hub body, and the bearing 10 is in compression connection with the rotatable portion through a dustproof ring. The other side of the rotatable part is connected with one end of the constant velocity universal shaft connecting flange 110, and the other end of the constant velocity universal shaft connecting flange 110 is used for being connected with a torque flange in the whole vehicle test bench. Unlike the conventional tire 101, the hub portion of the free hub proposed in the present application is not integrally rigidly connected, but divided into inner and outer rings, each of which can rotate independently, the outer ring can be fixed to the tire support device by a binding band, the inner side of the inner ring can be fixed to the drive shaft of the tire 101, and the outer side rotates together with the measuring instrument of the dynamometer without affecting the power transmission of the tire drive shaft.

Optionally, one side of the rotatable portion is further provided with internal adaptor flange bolts 107.

Optionally, a first dust ring 106 is further provided on one side of the rotatable portion.

Optionally, a second dust ring 109 is further provided on the other side of the rotatable portion.

Optionally, a bearing end cover 104 is disposed on the bearing 105.

Optionally, a bearing outer end cap 108 is further disposed on the bearing 105.

Optionally, a bearing seat 103 is further disposed on the bearing 105.

Optionally, the outer ring of the hub body is used for connecting the tire 101.

The utility model aims to provide a free wheel hub for a whole vehicle test bench, which can be conveniently fixed on a matched tire supporting device, not only can bear the weight of a vehicle, but also can not influence a tire driving shaft to transmit power to a measuring device. In order to achieve the purpose, the utility model adopts the technical scheme that: the bearing 105 of the vehicle is connected with a rotatable part at the center of a free wheel hub through a transfer flange, the other side of the rotating part is connected with a torque flange on a dynamometer through a constant velocity universal shaft connecting flange 110, so that the power output by the vehicle can be transmitted to the dynamometer through the free wheel hub, the tire 101 only plays a role of supporting the weight of a vehicle body and does not limit the free rotation of the bearing 105 of the vehicle, in short, different from the common tire 101, the hub part of the free wheel hub is not integrally and rigidly connected, but is divided into an inner ring and an outer ring which can independently rotate, the outer ring can be fixed on a tire supporting device through a binding belt, the inner side of the inner ring can be fixed with a driving shaft of the tire 101, and the outer side can rotate together with a measuring instrument of the dynamometer and does not influence the power transmission of the driving shaft of the tire.

Referring to fig. 1, the present invention mainly includes a tire 101, a hub outer ring 102, a bearing seat 103, a bearing end cover 104, a bearing 105, a first dust ring 106, a bearing outer end cover 108, a second dust ring 109, a constant velocity universal shaft connecting flange 110, a central hollow rotating shaft 111, and the like, wherein the tire 101 and the hub outer ring 102 can be modified by using a standard product in the market, and the bearing adopts a high speed angular contact bearing, so that the central hollow rotating shaft 111 and the constant velocity universal shaft connecting flange 110 can be free and rotate without being affected while the free hub is fixed on a tire supporting device at the outer ring. The free wheel hub can be transformed from a market standard product, is simple and convenient to process and has a simple principle. The free hub is independently rotated by the hub inner and outer rings, thereby allowing the wheel drive shaft to be transmitted through the central hollow rotating shaft 111 of the free hub with high transmission efficiency. The mounting mode of the free wheel hub and the vehicle to be tested is similar to that of a real working condition, and the output parameters of each wheel axle of the vehicle can be simulated more truly.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A free wheel hub is characterized in that the free wheel hub is used for a finished automobile test bench and comprises a wheel hub body, wherein a bearing, a rotatable part and a constant-speed universal shaft connecting flange are arranged in the wheel hub body;

the rotatable part is arranged at the center of the hub body;

2. The free hub of claim 1, wherein one side of the rotatable portion is further provided with internal adaptor flange bolts.

3. The freewheel hub according to claim 2 characterized in that, it is characterized in that, one side of the rotatable portion is also provided with a first dust ring.

4. A freewheel hub according to claim 3, characterized in that, the other side of the rotatable portion is also provided with a second dust ring.

5. The free hub of claim 1, wherein a bearing end cap is disposed on said bearing.

6. The free hub of claim 5, wherein said bearing is further provided with an outer bearing end cap.

7. The freewheel hub according to claim 6 characterized in that, it is characterized in that, a bearing seat is also provided on said bearing.

8. The free hub of claim 1, wherein the outer ring of the hub body is adapted for connection to a tire.