CN106769108B - Loading device of bidirectional dynamic load of hub for laboratory - Google Patents
Loading device of bidirectional dynamic load of hub for laboratory Download PDFInfo
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- CN106769108B CN106769108B CN201710158538.9A CN201710158538A CN106769108B CN 106769108 B CN106769108 B CN 106769108B CN 201710158538 A CN201710158538 A CN 201710158538A CN 106769108 B CN106769108 B CN 106769108B
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- 230000002457 bidirectional effect Effects 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 152
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 238000012360 testing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000009402 Dabao Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/013—Wheels
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a loading device of bidirectional dynamic load of a hub for a laboratory, wherein a left hub is arranged on the left side of an axle body and is connected with a first dynamometer through a first bearing, a first bearing seat is arranged on the first bearing, a first force transmission mechanism is connected with the first bearing seat, and a first axial loading mechanism and a first radial loading mechanism are arranged on the first force transmission mechanism; the right hub is arranged on the right side of the axle body and is connected with a second dynamometer through a second bearing, a second bearing mechanism is arranged on the outer ring of the second bearing, the second force transmission mechanism is connected with the second bearing, and a second axial loading mechanism and a second radial loading mechanism are arranged on the second force transmission mechanism; the first pressure dividing mechanism is connected with the first axial loading mechanism and the second axial loading mechanism, and the second pressure dividing mechanism is connected with the first radial loading mechanism and the second radial loading mechanism respectively; the hydraulic mechanism is connected with the first pressure dividing mechanism and the second pressure dividing mechanism respectively. The dynamic radial and axial loading of the hub end can be realized.
Description
Technical Field
The invention relates to a loading device, in particular to a loading device for bidirectional dynamic loads of hubs for laboratories.
Background
Automobile hubs are the most important transmission components in automobiles, and with the development of the automobile industry, the structures of the automobile hubs are improved, and the automobile hubs play a very important role in the operation of automobiles.
Currently, in a simulation hub loading test, unidirectional (radial or longitudinal) static loading is realized to meet the hub loading requirement under a static working condition, and the technology is widely adopted in a laboratory. However, the device in the prior art can only realize the loading of the rotating speeds and the forces at the two ends of the hub, and cannot realize the loading of the axial force and the radial force of the hub. The test part requirements can be met only under the static unidirectional loading working condition, and the loading requirements of the hub under the actual dynamic alternating loading working condition can not be simulated.
Accordingly, the inventors of the present invention have demanded to devise a new technique for improving the problems thereof.
Disclosure of Invention
The invention aims to provide a loading device for bidirectional dynamic loads of a hub for a laboratory, which can realize dynamic radial and axial simultaneous loading of a hub end under the working condition of hub rotation.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a laboratory hub bi-directional dynamic load loading device comprising: the device comprises an axle body, a left hub, a right hub, a first pressure dividing mechanism, a second pressure dividing mechanism and a hydraulic mechanism; the left hub is arranged on the left side of the axle body and is connected with a first dynamometer through a first bearing, a first bearing seat is arranged on the outer ring of the first bearing, a first force transmission mechanism is connected with the first bearing seat, and a first axial loading mechanism and a first radial loading mechanism are arranged on the first force transmission mechanism; the right hub is arranged on the right side of the axle body and is connected with a second dynamometer through a second bearing, a second bearing seat is arranged on the outer ring of the second bearing, a second force transmission mechanism is connected with the second bearing seat, and a second axial loading mechanism and a second radial loading mechanism are arranged on the second force transmission mechanism; the first pressure dividing mechanism is respectively connected with the first axial loading mechanism and the second axial loading mechanism, and the second pressure dividing mechanism is respectively connected with the first radial loading mechanism and the second radial loading mechanism; the hydraulic mechanism is respectively connected with the first pressure dividing mechanism and the second pressure dividing mechanism.
Preferably, the first force transmission mechanism comprises a first connecting part and a second connecting part which are connected in an L shape, wherein the first connecting part is connected with the first bearing seat, the first axial loading mechanism is arranged at two axial ends of the second connecting part, and the central line of the first axial loading mechanism is parallel to the axis of the left hub; the first radial loading mechanism is arranged at the lower end part of the second connecting part, and the central line of the first radial loading mechanism is perpendicular to the axis of the left hub.
Preferably, the second force transmission mechanism comprises a third connecting part and a fourth connecting part which are connected in an L shape, wherein the third connecting part is connected with the second bearing, the second axial loading mechanism is arranged at two axial ends of the fourth connecting part, and the central line of the second axial loading mechanism is parallel to the axis of the right hub; the second radial loading mechanism is arranged at the lower end part of the fourth connecting part, and the center line of the second radial loading mechanism is perpendicular to the axis of the right hub.
Preferably, the first bearing and the first dynamometer are connected through a first connecting flange.
Preferably, the second bearing and the second dynamometer are connected through a second connecting flange.
Preferably, the first force transmission mechanism is hinged on the first bearing seat through a joint bearing.
Preferably, the second force transmission mechanism is hinged on the second bearing through a joint bearing.
Preferably, the first bearing and the second bearing are tapered roller bearings.
Preferably, the hydraulic mechanism is a hydraulic station.
Preferably, the first dynamometer and/or the second dynamometer are/is a loading motor.
By adopting the technical scheme, the invention at least comprises the following beneficial effects:
the loading device for the bidirectional dynamic load of the hub for the laboratory can realize the dynamic radial and axial loading of the hub end under the working condition of hub rotation.
Drawings
Fig. 1 is a schematic structural view of a bidirectional dynamic load loading device for a hub for a laboratory.
Wherein: 1. the hydraulic power generation system comprises a first dynamometer, a second dynamometer, a hydraulic mechanism, a first bearing, a second bearing, a first bearing seat, a second bearing seat, a left hub, a right hub, a first axial loading mechanism, a second axial loading mechanism, a first radial loading mechanism, a second radial loading mechanism, a first pressure dividing mechanism, a second pressure dividing mechanism, a vehicle axle body, a first connecting flange, a second connecting flange, a first force transmission mechanism, a second force transmission mechanism and a second pressure dividing mechanism.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a loading device for bidirectional dynamic load of a hub for a laboratory according to the present invention comprises: the axle comprises an axle body 15, a left hub 8, a right hub 9, a first pressure dividing mechanism 14, a second pressure dividing mechanism 20 and a hydraulic mechanism 3; the left hub 8 is arranged at the left side of the axle body 15 and is connected with the first dynamometer 1 through a first bearing 4, a first bearing seat 6 is arranged on the outer ring of the first bearing 4, a first force transmission mechanism 18 is connected with the first bearing seat 6, and a first axial loading mechanism 10 and a first radial loading mechanism 12 are arranged on the first force transmission mechanism 18; the right hub 9 is arranged on the right side of the axle body 15 and is connected with the second dynamometer 2 through a second bearing 5, a second bearing seat 7 is arranged on the outer ring of the second bearing 5, a second force transmission mechanism 19 is connected with the second bearing seat 7, and a second axial loading mechanism 11 and a second radial loading mechanism 13 are arranged on the second force transmission mechanism 19; the first pressure dividing mechanism 14 is connected with the first axial loading mechanism 10 and the second axial loading mechanism 11 respectively, and the second pressure dividing mechanism 20 is connected with the first radial loading mechanism 12 and the second radial loading mechanism 13 respectively; the hydraulic mechanism 3 is connected to the first pressure dividing mechanism 14 and the second pressure dividing mechanism 20, respectively.
Preferably, the first force transmission mechanism 18 comprises a first connecting part and a second connecting part which are connected in an L shape, wherein the first connecting part is connected with the first bearing seat 6, the first axial loading mechanism 10 is arranged at two axial ends of the second connecting part, and the central line of the first axial loading mechanism 10 is parallel to the axis of the left hub 8; the first radial loading mechanism 12 is disposed at the lower end of the second connecting portion, and its center line is perpendicular to the axis of the left hub 8.
Preferably, the second force transmission mechanism 19 comprises a third connecting part and a fourth connecting part which are connected in an L shape, wherein the third connecting part is connected with the second bearing 7, the second axial loading mechanism 11 is arranged at two axial ends of the fourth connecting part, and the central line of the second axial loading mechanism 11 is parallel to the axis of the right hub 9; the second radial loading mechanism 13 is disposed at the lower end of the fourth connecting portion, and its center line is perpendicular to the axis of the right hub 9. Preferably, the first force-transmitting mechanism 18 and the second force-transmitting mechanism 19 are L-shaped plates, and the materials thereof may be metal materials or other materials, which are not limited in this embodiment.
Preferably, the first bearing 4 is connected to the first dynamometer 1 via a first connecting flange 16.
Preferably, the second bearing 5 is connected to the second dynamometer 2 via a second connecting flange 17.
Preferably, the first force transmission mechanism 18 is hinged to the first bearing seat 6 via a knuckle bearing.
Preferably, the second bearing 7 is hinged with the second force transmission mechanism 19 via a knuckle bearing.
Preferably, the first bearing 4 and the second bearing 5 are tapered roller bearings.
Preferably, the hydraulic means 3 is a hydraulic station. More preferably, the hydraulic station is a power small hydraulic station, and the model can be a Risen hydraulic station, a Dabao hydraulic station and the like.
Preferably, the first dynamometer 1 and/or the second dynamometer 2 are loading motors.
Wherein the first axial loading mechanism 10 may be two loading portions, and the two loading portions are respectively disposed at two ends of the second connecting portion; of course, the first axial loading mechanism 10 may also be a whole, which penetrates the inside of the second connecting portion and is fixed inside the second connecting portion. The second axial loading mechanism 11 is not described in detail. In a preferred embodiment, the first axial loading mechanism 10, the second axial loading mechanism 11 may be an axial loading mechanism as described in CN205958257, or a device for axially preloading a mechanical element as described in CN 101688552. The force obtained from the pressure dividing mechanism is transmitted to the axial direction of the hub through the force transmission mechanism, so that the hub is stressed. As to how it is connected to the force transmission mechanism and the pressure dividing mechanism, conventional connection means in the art, such as fastening connection, hinging, welding, and integral molding, etc., may be selected, as will be appreciated by those skilled in the art. Similarly, the first radial loading mechanism 12 and the second radial loading mechanism 13 may be a radial loading mechanism described in CN205898455 or a radial loading experimental apparatus for tire dynamic test described in CN104614189 a. The force obtained from the pressure dividing mechanism is transmitted to the radial direction of the hub through the force transmission mechanism, so that the hub is ensured to bear the force. As to how it is connected to the force transmission mechanism and the pressure dividing mechanism, conventional connection means in the art, such as fastening connection, hinging, welding, and integral molding, etc., may be selected, as will be appreciated by those skilled in the art. The first pressure dividing mechanism 14 and the second pressure dividing mechanism 20 may be mechanical pressure dividing mechanisms or other pressure dividing devices. It only needs to load the power of the hydraulic station to the loading mechanism, and as for the connection mode, the conventional connection means in the prior art, such as fastening connection, hinging connection, welding connection, integral forming and the like, can be selected, and those skilled in the art will know.
In a preferred embodiment, mounting holes are provided in the force transmission means (first force transmission means 18, second force transmission means 19), through which connection is made to the axial loading means (first axial loading means 10, second axial loading means 11) and to the radial loading means (first radial loading means 12, second radial loading means 13). Of course, it is intended that the above-described embodiments be capable of implementation in many other forms and modifications, as will be apparent to those skilled in the art, within the scope of the embodiments.
In addition, the connection in this embodiment may be made by fastening, welding, and integrally forming, and this is a common technical means for those skilled in the art, so this embodiment will not be described in detail.
The working principle of the embodiment is as follows: in the prior art, the first dynamometer 1 and the second dynamometer 2 can only apply torque and rotational speed to the hub and the axle body 15 to measure the performance of the axle, such as transmission efficiency, durability and the like. However, in the actual use process, the hub itself needs to bear radial acting force of the ground to the hub and axial acting force of the axle to the hub, so that the prior art cannot simulate the actual running condition and has certain limitation. According to the embodiment, under the condition that the applied torque and the rotating speed can be met, the real running condition is simulated, the variable radial load and the variable axial load are applied to the hub, and the performances of the axle and the hub can be truly reflected.
The concrete working process is as follows: the hydraulic pressure is applied to the first pressure dividing mechanism 14 and the second pressure dividing mechanism 20 through the hydraulic mechanism 3, the magnitude of the pressure dividing mechanism force is adjusted, and the preset values of the radial force and the axial force of the hub are given, so that the acting force of an actual driving road surface to the tire and the acting force of an axle to the hub are simulated. The first dynamometer 1 and the second dynamometer 2 drive the hub to rotate so as to simulate the force and the rotating speed of the vehicle in the driving process. In the test process, the dynamometer can simulate the speed and the running resistance by adjusting the rotation speed and the torque; the hydraulic station can adjust the acting force of the road surface and the axle on the tire and the wheel hub through the pressure dividing mechanism, so that the loading of the radial acting force and the axial acting force of the vehicle under different load working conditions is realized, and the loading is matched with the actual running state.
The test effect matched with the actual running state of the vehicle can be effectively achieved, and the accuracy of axle and hub product testing is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A laboratory hub bi-directional dynamic load loading device, comprising: the device comprises an axle body, a left hub, a right hub, a first pressure dividing mechanism, a second pressure dividing mechanism and a hydraulic mechanism; the left hub is arranged on the left side of the axle body and is connected with a first dynamometer through a first bearing, a first bearing seat is arranged on the outer ring of the first bearing, and a first force transmission mechanism is hinged on the first bearing seat through a joint bearing; the first force transmission mechanism is provided with a first axial loading mechanism and a first radial loading mechanism; the right hub is arranged on the right side of the axle body and is connected with a second dynamometer through a second bearing, a second bearing mechanism is arranged on an outer ring of the second bearing, a second force transmission mechanism is hinged on the second bearing mechanism through a joint bearing, and a second axial loading mechanism and a second radial loading mechanism are arranged on the second force transmission mechanism; the first pressure dividing mechanism is respectively connected with the first axial loading mechanism and the second axial loading mechanism, and the second pressure dividing mechanism is respectively connected with the first radial loading mechanism and the second radial loading mechanism; the hydraulic mechanism is respectively connected with the first pressure dividing mechanism and the second pressure dividing mechanism; the first force transmission mechanism comprises a first connecting part and a second connecting part which are connected in an L shape, wherein the first connecting part is connected with the first bearing seat, the first axial loading mechanism is arranged at two axial ends of the second connecting part, and the central line of the first axial loading mechanism is parallel to the axis of the left hub; the first radial loading mechanism is arranged at the lower end part of the second connecting part, and the central line of the first radial loading mechanism is perpendicular to the axis of the left hub; the second force transmission mechanism comprises a third connecting part and a fourth connecting part which are connected in an L shape, wherein the third connecting part is connected with the second bearing seat, the second axial loading mechanism is arranged at two axial ends of the fourth connecting part, and the central line of the second axial loading mechanism is parallel to the axis of the right hub; the second radial loading mechanism is arranged at the lower end part of the fourth connecting part, and the central line of the second radial loading mechanism is perpendicular to the axis of the right hub; the first bearing is connected with the first dynamometer through a first connecting flange; the second bearing is connected with the second dynamometer through a second connecting flange; the first bearing and the second bearing are tapered roller bearings.
2. The laboratory hub bi-directional dynamic load loading device of claim 1, wherein: the hydraulic mechanism is a hydraulic station.
3. The laboratory hub bi-directional dynamic load loading device of claim 1, wherein: the first dynamometer and/or the second dynamometer are/is loading motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710158538.9A CN106769108B (en) | 2017-03-17 | 2017-03-17 | Loading device of bidirectional dynamic load of hub for laboratory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710158538.9A CN106769108B (en) | 2017-03-17 | 2017-03-17 | Loading device of bidirectional dynamic load of hub for laboratory |
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| Publication Number | Publication Date |
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| CN106769108A CN106769108A (en) | 2017-05-31 |
| CN106769108B true CN106769108B (en) | 2023-10-20 |
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| CN201710158538.9A Active CN106769108B (en) | 2017-03-17 | 2017-03-17 | Loading device of bidirectional dynamic load of hub for laboratory |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3435057A1 (en) | 2017-07-28 | 2019-01-30 | Siemens Aktiengesellschaft | Mounting device for mounting a drive axle of a vehicle for a test bench |
| CN108020414A (en) * | 2017-12-08 | 2018-05-11 | 合肥海源机械有限公司 | Drive axle loads running-in machine |
| CN109556889A (en) * | 2018-11-30 | 2019-04-02 | 湖北环电磁装备工程技术有限公司 | A kind of vertical bearing wheels testing stand |
| CN110595784B (en) * | 2019-09-04 | 2021-01-15 | 一汽解放汽车有限公司 | Axle hub adapter and power assembly's laboratory bench |
| CN113567154B (en) * | 2021-09-26 | 2021-12-17 | 山东天河科技股份有限公司 | A testing arrangement for vehicle wheel |
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