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Heat flow characteristic testing device and method for bearing for drive axle

A technology of characteristic test and drive device, which is used in measurement devices, material inspection products, instruments, etc., can solve the problem that the lubrication conditions and working conditions cannot reach the internal working conditions of the drive axle, there is no internal heat flow characteristic test of the bearing, and there is no bearing installation, etc. question

Pending Publication Date: 2021-09-24
ZHEJIANG ZHAOFENG MECHANICAL & ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing relevant patents are only for the test device for testing the bearing lubrication structure and lubrication conditions, and have not comprehensively tested the internal heat flow characteristics of the bearing; in addition, most of the relevant patents at this stage are carried out on the bearing testing machine. , none of the bearings are installed in the drive axle of the car, and it is impossible to carry out the test under the load condition. Therefore, the lubrication conditions and working conditions cannot reach the real internal working conditions of the drive axle, which leads to the inability to effectively simulate the real lubrication boundary conditions

Method used

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  • Heat flow characteristic testing device and method for bearing for drive axle
  • Heat flow characteristic testing device and method for bearing for drive axle
  • Heat flow characteristic testing device and method for bearing for drive axle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Bearing heat flow characteristic test device for drive axle, including base 3, final reducer 4, driving device 2 and test device 1 installed on final reducer 4, final reducer 4 and driving device 2 are fixed on the base by bolts 3, the driving device 2 is connected to the final reducer 4 through the test device 1, and the test device 1 includes a temperature sensor 13 and a high-speed camera 14. combine image 3 , in order to visually photograph and observe the flow state of the lubricating oil flowing through the double-row tapered roller bearing 44, the housing of the final reducer 4 needs to be made into two parts: the housing of the final reducer 4 includes an auxiliary housing 49 and a transparent material Observation housing 43 made, observation housing 43 is fixedly connected with auxiliary housing 49, double-row tapered roller bearing 44 is installed in observation housing 43, and temperature sensor 13 is installed on the side wall of observation housing 43 and ...

Embodiment 2

[0060] Embodiment 2 is basically the same as Embodiment 1. The difference is that a fixed frame 5 for fixing the main reducer 4 is installed on the base 3. The fixed frame 5 keeps the final drive 4 in a stable state during operation. The fixed frame 5 Set at the center position of base 3. A side plate 51 is installed on the side of the fixed frame 5, and the first fastening bolt connected with the side of the main reducer 4 is installed on the side plate 51. The second fastening bolt 53 connected to the top of the gearbox 4, the left and right sides of the fixed frame 5 are also equipped with an adjustment base plate 56 for supporting the connecting flange of the final reducer 4, and the fixed frame 5 includes a number of uprights 54 and beams 55 , the quantity of column 54 and crossbeam 55 of present embodiment is all four, and the bottom of column 54 is fixed on the base platform 3 by bolt, is provided with threaded hole above column 54, and threaded hole facilitates crossbe...

Embodiment 3

[0062] A kind of testing method that adopts the test device for heat flow characteristic of drive axle bearing in embodiment 1 or 2, comprises the steps:

[0063] Step a, adding lubricating oil with a tracer factor in the observation housing 43 of the main reducer 4, the tracer factor is preferably phosphor powder, which is convenient for the high-speed camera 14 to observe;

[0064] Step b, turn on the lighting lamp 11 in the shading box 12; the lighting lamp 11 illuminates and observes the inside of the casing 43, which is convenient for the high-speed camera 14 to take pictures;

[0065] Step c, start the driving device 2 and the loading device 6, mode working environment, the loading device 6 constantly changes the loading load;

[0066] Step d, start the test device, the high-speed camera 14 tracks the motion characteristics of the tracer in the final reducer 4, and the temperature sensor 13 tests the temperature characteristics of the double-row tapered roller bearing 44...

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Abstract

The invention relates to the technical field of bearing testing, and discloses a heat flow characteristic testing device and method for a bearing for a drive axle, and the device comprises a main speed reducer and a testing device disposed on the main speed reducer. The testing device comprises a temperature sensor and a high-speed camera, the main speed reducer comprises an auxiliary shell and an observation shell, the observation shell is fixedly connected with the auxiliary shell, a double-row tapered roller bearing is installed in the observation shell, the temperature sensor is installed on the side wall of the observation shell and connected with the double-row tapered roller bearing, and the high-speed camera is arranged right below the observation shell. According to the device, a high-speed camera is adopted, a transparent observation shell structure is matched, and a method of tracing factors in lubricating oil is combined, so that the flow characteristic test of the lubricating oil in a bearing cavity can be intuitively realized; and meanwhile, a temperature sensor is adopted to obtain the distribution temperature characteristics of two rows of lubricating oil of the double-row tapered roller bearing, and the correlation between the flow characteristics and the temperature characteristics of the lubricating oil in the double-row tapered roller bearing is studied in cooperation with flow characteristic observation.

Description

technical field [0001] The invention relates to the technical field of bearing testing, in particular to a testing device and a testing method for the heat flow characteristic of a bearing used in a drive axle. Background technique [0002] The bearing is an important supporting part in the main reducer of the vehicle. The main drive shaft of the main reducer is currently supported by a pair of tapered roller bearings or a double-row tapered roller bearing, which is lubricated by splashing oil. The difference in the position of the main reducer housing leads to great differences in splash lubrication, and the resulting temperature characteristics are also very different. There are often poor lubrication of the row of bearings far away from the main bevel gear, and even seriously affect the service life of the car. Therefore, the study of the difference in the flow characteristics of the two-row bearing lubricating oil and the correlation with the temperature characteristics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28G01N33/30
CPCG01N33/2888G01N33/30
Inventor 温保岗孔辰寰康乃正雷良育
Owner ZHEJIANG ZHAOFENG MECHANICAL & ELECTRONICS CO LTD
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