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Fit clearance continuously-adjustable thrust rolling bearing test bench

A rolling bearing and fit clearance technology, which is applied in the direction of mechanical bearing testing, etc., can solve the problems such as the inability to meet the continuous changing characteristics of the fit clearance, and achieve the effects of avoiding uneven load, continuously adjustable fit clearance, and easy operation.

Active Publication Date: 2018-10-19
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The previous rolling bearing test bench could not meet the characteristics of continuous change of fit clearance

Method used

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  • Fit clearance continuously-adjustable thrust rolling bearing test bench
  • Fit clearance continuously-adjustable thrust rolling bearing test bench

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Specific implementation mode one: combine figure 1 , a detailed fit gap continuously adjustable thrust rolling bearing test bench is characterized in that it includes a support plate 13 on which a lever loading device 1 is mounted, and the lever loading device includes a lever base, a lever bracket baffle, a lever bracket, and a rolling bearing, Lever shaft, lever bearing gasket, lever bearing end cover, a weight 2 is placed at one end of the lever, the loading contact part is a cylindrical contact block, 1 / 3 away from the fulcrum, the load is transmitted to the bearing cover 3 through the cylindrical contact block, The upper cover of the bearing is matched with the shaft ring of the thrust rolling bearing 4 to be tested, the seat ring of the thrust rolling bearing 4 to be tested is placed in the bearing housing 7, the semi-conical hollow shaft 6 is matched with the inner ring of the thrust rolling bearing 4 to be tested, and the The shape pin 5 adjusts the fit clearanc...

specific Embodiment approach 2

[0012] Specific implementation mode two: combination figure 1 , in detail, the working principle of the thrust rolling bearing test bench with continuously adjustable fit gap is as follows: After adding weight 2, a load three times the weight is applied to the bearing cover 3 through the principle of leverage, thereby applying a load to the thrust rolling bearing 4 to be tested. The external controller 18 triggers the driving machine 17 to work. The main shaft 11 is driven to rotate by the elastic coupling 16 . The bearing seat tray 9 and the bearing seat 7 are connected by countersunk screws, and the main shaft 11 drives the bearing seat tray 9 and the bearing seat 7 to rotate together through the flat key 10 after the rotation. Under the double cooperation of the seat ring of the thrust rolling bearing 4 to be tested, the bearing seat 7 and the semi-conical hollow shaft 6, the seat ring of the thrust rolling bearing 4 to be tested rotates. The oil dripped into the central ...

specific Embodiment approach 3

[0013] Specific implementation mode three: combination figure 2 , detailing the working principle of the double fit between the thrust rolling bearing seat ring and the semi-conical hollow shaft and the bearing seat of the thrust rolling bearing test bench with continuously adjustable fit clearance: the outer ring of the thrust rolling bearing 4 seat ring to be tested and the bearing seat 7 adopt a clearance fit. A semi-conical hollow shaft 6-1 with a taper of 17° is embedded in the bottom of the bearing seat 7 to form a matching pair with the inner ring of the thrust rolling bearing race 4 to be tested. And in the axial direction of the semi-conical hollow shaft 6-1, two U-shaped slots with a width of 1 mm are symmetrically opened to the conical hollow tail end. Semi-tapered hollow shaft 6-1 and bearing seat 7 realize synchronous rotation by flat key 6-2. Taper is that the conical pin 5-1 of 30 ° is pressed in the semi-conical hollow shaft 6-1 by countersunk head screw 5-2....

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Abstract

The invention discloses a fit clearance continuously-adjustable thrust rolling bearing test bench, and belongs to the technical field of bearing working performance testing. The fit clearance continuously-adjustable thrust rolling bearing test bench includes a support plate, an elastic coupling and a control device. A main thrust rolling bearing, an oil pool and a lever loading device are arrangedabove the support plate; and a drive machine is arranged below the support plate. An oil hole is formed in the center of a bearing upper cover. A thrust rolling bearing to be tested is installed in abearing seat, and fit clearance continuous adjustment is performed on an inner ring of a seat ring of the thrust rolling bearing by using fitting of a semi-conical hollow shaft and a tapered pin. Thebearing seat and a bearing seat tray are connected through countersunk screws; and the bearing seat tray and a rotary main shaft are connected through a flat key. The invention adopts a mechanical manner, and the inner and outer rings of the bearing seat ring are double-fitted, the fit clearance of the thrust rolling bearing is continuously adjustable, and the fitting type under different loads can be satisfied without replacing parts; and the structure is simple, the operation is safe, and the bearing replacement and disassembly are convenient and reliable.

Description

technical field [0001] The invention relates to the technical field of bearing performance testing, in particular to an experimental device for the friction and wear performance of a thrust rolling bearing under heavy load. The double fit method of the inner and outer rings of the thrust rolling bearing seat ring has stronger adaptability to the application range of the load, especially when the bearing needs to be replaced many times in the statistical heavy load test, it is very convenient and can meet the requirements of large load range. Background technique [0002] With the rapid development of the industrial field, especially the diversified and specialized technical expansion of the automobile, aviation, aerospace, high-speed rail and other industries, the requirements for bearings are becoming more and more stringent. In order to study the engineering application of thrust rolling bearings, it is necessary to design a bearing testing machine with adjustable fit cle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 袁伟李松梅盛开郭前建王志文
Owner SHANDONG UNIV OF TECH
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