CN202362101U - Horizontal bearing friction torque measuring device - Google Patents
Horizontal bearing friction torque measuring device Download PDFInfo
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- CN202362101U CN202362101U CN2011205221854U CN201120522185U CN202362101U CN 202362101 U CN202362101 U CN 202362101U CN 2011205221854 U CN2011205221854 U CN 2011205221854U CN 201120522185 U CN201120522185 U CN 201120522185U CN 202362101 U CN202362101 U CN 202362101U
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- power transmission
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Abstract
The utility model discloses a horizontal bearing friction torque measuring device. A speed sensor is arranged on a main shaft; the rotational speed is read through a digital display instrument; the input end of a data acquisition card is connected with a force sensor through a strain gauge; the data acquisition card is built-in a main board of a PC (personal computer); the main board is connected with a display; the main shaft is horizontally arranged; one end of the main shaft is provided with a bearing replacing sleeve, and the other end of the main shaft is connected with a main shaft of a motor; a tested bearing is arranged in the bearing replacing sleeve; the inner ring of the tested bearing is provided with a force transmission rotating disc; the force transmission rotating disc is connected with the force sensor through a dowel bar; a load output ball head of an axial loading device is contacted with a disc surface vertical point of the force transmission rotating disc; and the load output end of a radial loading device and the outer peripheral surface of the bearing replacing sleeve are mutually compacted and roll oppositely. The horizontal bearing friction torque measuring device provided by the utility model adopts a horizontal structure, can be used for loading in two directions simultaneously, can better simulate the actual working condition of the bearing, avoids the unbalanced loading vibration of the main shaft caused by the belt driving manner of the main shaft, and has simple structure and strong practicability.
Description
Technical field
The utility model relates to the moment of friction surveying instrument of bearing, a kind of specifically horizontal bearing frictional torque measurement mechanism.
Background technology
Bearing frictional torque is divided into starting friction kinetic moment and dynamic friction torque; The starting friction kinetic moment be meant bearing by static to rotating the moment of resistance that institute will overcome, dynamic friction torque is size and the fluctuation situation that reflects bearing suffered moment of resistance under a certain rotating speed; Therefore, the quality of bearing dynamic friction torque has been represented the quality of bearing dynamic property and the height of bearing quality to a great extent.
How rationally bearing frictional torque Research on Measuring Technology purpose is to study evaluation; Accurately measure the frictional behaviour of bearing; For the influence factor of improving design bearing parameter, improvement processing technology and analysis bearing frictional torque provides a reliable foundation; Thereby the raising bearing quality improves the main shaft precision, satisfies the technical requirement of applying unit to the bearing friction performance.
For this reason, arise at the historic moment about solving measurement bearing frictional torque and measurement mechanism.
The patent No. 200610052086.8 " bearing under micro-loading, The measure of frictional moment of different rotational speed and the survey meter " only provides a kind of straightforward procedure of under micro-radial load and different rotating speeds, measuring bearing frictional torque.This measuring instrument not energy measurement in the moment of friction of different axial loads, different rotating speeds lower bearing.
The patent No. 200720091651.1 " a kind of gyro machine shaft connecting bearing friction torque test device "; This device can only be tested the extraordinary shaft connecting bearing of little load; And measurement range is little; Only can add the axial load below the 10N to shaft connecting bearing, and can't be determined at big axial load and the dynamic friction torque under the high-speed condition with loaded ring.
In the bearing frictional torque measurement mechanism that uses in the market; Holding the moment of friction measuring instrument like M9908A, M695 type and the PM9906 profile shaft of Luoyang bearing Research Institute all is to adopt vertical structure; Be that driving main shaft is vertically arranged, drive the measured bearing inner ring and horizontally rotate.And the bearing of most of devices, equipment all is in vertical plane, to rotate in the actual production, and the measured bearing frictional torque data of the vertical structure of obvious above-mentioned bearing frictional torque measuring instrument can't truly comprehensively reflect the actual condition of measured bearing.Simultaneously; The main shaft of the bearing frictional torque measuring instrument that uses on the market all adopts bel-drivenn mode driving main shaft to rotate; This type of drive can produce unbalance loading to the rotation of main shaft, and consequent vibration meeting exerts an influence to the stability and the accuracy of measured bearing moment of friction measurement data.
The utility model content
For solving limitation such as existing bearing frictional torque measurement mechanism uses, measurement range is little, the utility model provides a kind of horizontal bearing frictional torque measurement mechanism.
The utility model is that the technical scheme that solves the problems of the technologies described above employing is: a kind of horizontal bearing frictional torque measurement mechanism, comprise motor driven systems and data acquisition processing system, and described data acquisition processing system comprises force transducer, speed pickup, digital indicator, data collecting card and display; Wherein, Speed pickup is arranged on the main shaft, and is connected with digital indicator, and data collecting card is arranged in the PC mainboard; The input end of data collecting card is connected with force transducer through strainmeter; The output terminal of PC mainboard is connected with display, and described main shaft is horizontally disposed with, the middle part through left comer contact ball bearing and right corner contact ball bearing respectively correspondence be arranged in left shaft holder and the right bearing seat; One end of main shaft is provided with the bearing replacing cover, and the other end is connected with electric machine main shaft through spring coupling; Be provided with measured bearing in the bearing replacing cover, the inner ring of measured bearing is provided with the power transmission rotating disk, and the inner ring of measured bearing is that wringing fit is connected with the power transmission rotating disk, and the power transmission rotating disk is provided with transmission rod, and the power transmission rotating disk passes through transmission rod and is connected with force transducer; Also be provided with axial charger and radial loaded device, wherein, axially the load of charger output bulb contacts with the card central vertical point of power transmission rotating disk, the mutual be pressed on the roll of outer peripheral face of the load output terminal of radial loaded device and bearing replacing cover.
Left comer contact ball bearing that assembles on the described main shaft and right corner contact ball bearing, they carry out axially and radial support main shaft.
Described axial charger and radial loaded device; Form by loading lever and counterweight piece; Through loading the counterweight piece, the output bulb of the other end that loads lever is contacted with power transmission rotating disk or bearing replacing cover, thereby the load of accomplishing measured bearing load at an end that loads lever.
Beneficial effect: 1, the utility model device adopts horizontal type structure; Motor rotates through the spring coupling driving main shaft; Rotate the outer ring of main shaft drives measured bearing, the actual condition of proper simulation bearing more, the main shaft unbalance loading vibration problem of having avoided the main shaft band kind of drive to produce;
2, in the past proving installation can only axially load or radial loaded, and the utility model device can be realized the loading on the both direction simultaneously; Thereby can better simulate actual condition, can measure the moment of friction under the different big or small load, loading accuracy is high; Simple in structure, practical;
3, the utility model device can be tested the moment of friction of different bearings, deep groove ball bearing, angular contact ball bearing, taper roll bearing etc., and test specification is wide;
4, this proving installation has good stable property, measurement data accurately and reliably, the frictional behaviour of reflection measured bearing that can be correct, for the influence factor of analyzing bearing moment with improve bearing arrangement and processing technology reliable foundation be provided.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the utility model;
Fig. 2 is the right view of the radial loaded device of the utility model;
Reference numeral: 1, axial charger, 2, force transducer, 3, the power transmission rotating disk, 4, measured bearing; 5, bearing replacing cover, 6, the radial loaded device, 7, left shaft holder, 8, the left comer contact ball bearing; 9, main shaft, 10, speed pickup, 11, the right bearing seat; 12, right corner contact ball bearing, 13, spring coupling, 14, electric machine main shaft;
601, rolling bearing, 602, nut, 603, axle, 604, casing, 605, bearing pin, 606, load lever, 607, the counterweight piece.
Embodiment
As shown in the figure, a kind of horizontal bearing frictional torque measurement mechanism comprises motor driven systems and data acquisition processing system; Described data acquisition processing system comprises force transducer 2, speed pickup 10, digital indicator, data collecting card and display, and wherein, speed pickup 10 is arranged on the main shaft 9; And be connected with digital indicator; Data collecting card is arranged in the PC mainboard, and the input end of data collecting card is connected with force transducer 2 through strainmeter, and the output terminal of PC mainboard is connected with display; Described main shaft 9 is horizontally disposed with; The middle part through left comer contact ball bearing 8 and right corner contact ball bearing 12 respectively correspondence be arranged in left shaft holder 7 and the right bearing seat 11, an end of main shaft 9 is provided with bearing replacing cover 5, the other end is connected with electric machine main shaft 14 through spring coupling 13; Be provided with measured bearing 4 in the bearing replacing cover 5, the inner ring of measured bearing 4 is provided with power transmission rotating disk 3, and the inner ring of measured bearing 4 and power transmission rotating disk 3 be for wringing fit is connected, and power transmission rotating disk 3 is provided with transmission rod, and power transmission rotating disk 3 passes through transmission rod and is connected with force transducer 2; Also be provided with axial charger 1 and radial loaded device 6, wherein, axially the load of charger 1 output bulb contacts with the card central vertical point of power transmission rotating disk 3, the mutual be pressed on the roll of outer peripheral face of the load output terminal of radial loaded device 6 and bearing replacing cover 5.
The a pair of left comer contact ball bearing 8 and the right corner contact ball bearing 12 of assembling on main shaft 9; They carry out axially and radial support main shaft 9, the speed pickup 10 of the test speed of mainshaft are housed, main shaft 9 horizontal positioned on main shaft 9; End at main shaft 9 is equipped with bearing replacing cover 5; Main shaft 9 overlaps 5 through being threaded with bearing replacing, and measured bearing 4 is contained in the bearing replacing cover 5, and main shaft 9 directly drives measured bearing 4 outer rings and rotates; Power transmission rotating disk 3 is installed in the inner ring of measured bearing 4, and electric machine main shaft 14 links to each other with other end main shaft 9 through spring coupling 13 and fetches 5 rotations of driving bearing replacing cover, and motor is the direct current stepless speed-change motor;
Axial load is loaded through power transmission rotating disk 3 by axial charger 1, and radial load is loaded by radial loaded device 6, and is as shown in Figure 2; A pair of rolling bearing 601 is installed on the casing 604 through bolt; Axial location is tightened through bolt, nut 602, and rolls with 5 pairs in bearing replacing cover, carries out radial loaded through loading 607 pairs of bearing replacing covers 5 of lever 606 and counterweight piece; This load mode more helps the heart, is not easy when promptly loading to add partially.Main shaft 9 drives the outer ring of measured bearing 4 and rotates; Under the effect of moment of friction between the measured bearing 4 inside and outside circles; Power transmission rotating disk 3 is through transmission rod forces sensing 2, changes the moment of friction between the measured bearing 4 inside and outside circles force signal of force transducer 2 into, and force signal is sent to data collecting card; Convert corresponding moment of friction to through the force signal of handling force transducer 2 then, and be presented on the display.
Concrete measuring method is: measured bearing 4 is contained in the bearing replacing cover 5; Carry out axially and radial loaded load through axial charger 1 and 6 pairs of measured bearings of radial loaded device 4 respectively; Electric machine main shaft 14 rotates through spring coupling 13 driving main shaft 9, drives measured bearing 4 outer rings through bearing replacing cover 5 then and rotates together thereupon; Under the effect of moment of friction between the measured bearing 4 inside and outside circles; Power transmission rotating disk 3 is through transmission rod forces sensor 2; Force transducer 2 changes the moment of friction between the measured bearing 4 inside and outside circles into force signal and is sent to data collecting card; Convert corresponding moment of friction to through the force signal of handling force transducer 2 then, and be presented on the display; When needs load radial load; An end that in radial loaded device 6, loads lever loads the counterweight piece; Make the other end that loads lever receive upwards load; The outer peripheral face rolling compression fit of the outer ring of a pair of loading rolling bearing 601 and bearing replacing cover 5, the outer ring that loads rolling bearing 601 are pressed on the outer peripheral face of bearing replacing cover 5 through bearing replacing cover 5 and for measured bearing 4 radial load are provided, and 5 rollings can be overlapped with bearing replacing in the outer ring that loads rolling bearing 601; Reduce to load the friction force of the outer ring of rolling bearing 601, load thereby accomplish radial load to bearing replacing cover 5; When needs load axial load; An end that in axial charger 1, loads lever loads the counterweight piece; The bulb of the other end that loads lever is contacted with 3 of power transmission rotating disks, produce horizontal applied force, load thereby accomplish load; Calculate through the arm of force, can try to achieve respectively add the axial load value and the radial load value of load.
Claims (1)
1. horizontal bearing frictional torque measurement mechanism; Comprise motor driven systems and data acquisition processing system; Described data acquisition processing system comprises force transducer (2), speed pickup (10), digital indicator, data collecting card and display, and wherein, speed pickup (10) is arranged on the main shaft (9); And be connected with digital indicator; Data collecting card is arranged in the PC mainboard, and the input end of data collecting card is connected with force transducer (2) through strainmeter, and the output terminal of PC mainboard is connected with display; It is characterized in that: described main shaft (9) is horizontally disposed with; The middle part through left comer contact ball bearing (8) and right corner contact ball bearing (12) respectively correspondence be arranged in left shaft holder (7) and the right bearing seat (11), an end of main shaft (9) is provided with bearing replacing cover (5), the other end passes through spring coupling (13) and is connected with electric machine main shaft (14); Be provided with measured bearing (4) in the bearing replacing cover (5); The inner ring of measured bearing (4) is provided with power transmission rotating disk (3); And the inner ring of measured bearing (4) is connected for wringing fit with power transmission rotating disk (3); Power transmission rotating disk (3) is provided with transmission rod, and power transmission rotating disk (3) is connected with force transducer (2) through transmission rod; Also be provided with axial charger (1) and radial loaded device (6); Wherein, Axially the load of charger (1) output bulb contacts the mutual be pressed on the roll of outer peripheral face of the load output terminal of radial loaded device (6) and bearing replacing cover (5) with the card central vertical point of power transmission rotating disk (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205221854U CN202362101U (en) | 2011-12-14 | 2011-12-14 | Horizontal bearing friction torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205221854U CN202362101U (en) | 2011-12-14 | 2011-12-14 | Horizontal bearing friction torque measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362101U true CN202362101U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205221854U Expired - Fee Related CN202362101U (en) | 2011-12-14 | 2011-12-14 | Horizontal bearing friction torque measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202362101U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519639A (en) * | 2011-12-14 | 2012-06-27 | 河南科技大学 | Friction torque measurement apparatus of horizontal bearing |
| CN103335845A (en) * | 2013-06-21 | 2013-10-02 | 东南大学 | Device for testing axial bearing capacity of conical dynamic-pressure spiral groove bearing |
| CN109612616A (en) * | 2018-12-30 | 2019-04-12 | 洛阳轴承研究所有限公司 | A kind of measurement of friction torque device of angular contact radial bearing |
-
2011
- 2011-12-14 CN CN2011205221854U patent/CN202362101U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519639A (en) * | 2011-12-14 | 2012-06-27 | 河南科技大学 | Friction torque measurement apparatus of horizontal bearing |
| CN103335845A (en) * | 2013-06-21 | 2013-10-02 | 东南大学 | Device for testing axial bearing capacity of conical dynamic-pressure spiral groove bearing |
| CN103335845B (en) * | 2013-06-21 | 2016-05-04 | 东南大学 | Taper dynamic pressure spiral grooved bearing axial carrying capacity testing arrangement |
| CN109612616A (en) * | 2018-12-30 | 2019-04-12 | 洛阳轴承研究所有限公司 | A kind of measurement of friction torque device of angular contact radial bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121214 |