CN203310509U - Bearing vibration velocity measuring instrument - Google Patents
Bearing vibration velocity measuring instrument Download PDFInfo
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- CN203310509U CN203310509U CN2013203899439U CN201320389943U CN203310509U CN 203310509 U CN203310509 U CN 203310509U CN 2013203899439 U CN2013203899439 U CN 2013203899439U CN 201320389943 U CN201320389943 U CN 201320389943U CN 203310509 U CN203310509 U CN 203310509U
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Abstract
The utility model discloses a bearing vibration velocity measuring instrument including a hydrostatic pressure drive spindle, a loading device, a sensor adjusting device, an oil supplying system, a measurement amplifier and a rack. The hydrostatic pressure drive spindle is driven by an electric motor. A to-be-tested bearing is disposed on a core shaft of the drive spindle. The loading device is composed of two parts including an axial loading device ad a radial loading device and performs loading through a pneumatic spring loading mechanism. A sensor is disposed above the to-be-tested bearing and is installed on the sensor adjusting device. The sensor can be adjusted in a horizontal direction and in a vertical direction. The sensor is connected with the measurement amplifier, so that the amplification, filtration, detection and value indication of vibration signals picked by the sensor can be performed. The bearing vibration velocity measuring instrument runs stably under a testing condition with high rotate speed and large load and the spindle is high in rotation precision and low in heat generation. The bearing vibration velocity measuring instrument can be used for vibration tests for deep groove ball bearings, angular contact ball bearings, angular contact ball bearings, cylindrical roller bearings and self-aligning roller bearings.
Description
Technical field
The utility model relates to a kind of bear vibration velocity measuring device, relates in particular to a kind of instrument that can carry out the bear vibration detection under high rotating speed heavy load condition.
Background technology
Bearing vibration speed measurer is a kind of instrumentation of measuring bear vibration noise quality.New national standard requires to carry out the bear vibration measurement under the condition of at a high speed large load, yet, existing its measuring method of this bearing vibration speed measurer is all with reference to the old industry standard design of JB/T15313, its drive shaft generally adopts the Hydrodynamic drive shaft, running accuracy is low and thermal value is large under high speed conditions, instrument performance is unstable, and measurement data is inaccurate.On the other hand, the charger of existing bearing vibration speed measurer can't reach the load-up condition that new national standard requires.
Summary of the invention
In order to overcome the above-mentioned defect of existing bearing vibration speed measurer, the utility model provide a kind of stable performance, rotating speed high, load bearing vibration speed measurer large, easy to use.
The technical solution adopted in the utility model is: a kind of bearing vibration speed measurer comprises: frame, hydraulic static spindle, axial loading device, sensor adjusting gear, measuring amplifier, active motor, radial loaded device, sensor and oil supply system; Wherein, described hydraulic static spindle, axial loading device, radial loaded device, active motor and oil supply system all are fixed on frame; The front end of fluid pressure drive shaft is settled bearing to be measured by mandrel, and rear end is connected with spindle motor by many contracts band; Oil supply system is to the hydraulic static spindle fuel feeding; Sensor be positioned at bearing to be measured directly over position, be fixedly connected on the sensor adjusting gear, and be connected with measuring amplifier; The sensor adjusting gear is positioned at the hydraulic static spindle top, and axial loading device and radial loaded device are positioned at the place ahead of hydraulic static spindle.
Further, described oil supply system comprises motor, coarse filter, oil pump, surplus valve, tensimeter, fine filter, retaining valve and pressure switch; The output shaft of described motor is connected with oil pump, the oil-in of oil pump is connected with the fuel tank pipeline by coarse filter, oil-out is connected with the surplus valve pipeline with retaining valve respectively, the other end of spill valve is connected with the fuel tank pipeline, the other end of retaining valve by fine filter to the hydraulic static spindle fuel feeding, setting pressure table and pressure switch on retaining valve and pipeline that fine filter is connected.
According to the described bearing vibration speed measurer of claim, it is characterized in that, described hydraulic static spindle comprises multi-wedge belt pulley, main shaft, hydrodynamic journal liquid polymers and main shaft housing; Described main shaft is installed in hydrodynamic journal liquid polymers by hydrodynamic journal liquid polymers, and the afterbody of main shaft is installed multi-wedge belt pulley, and many contracts belt wheel is connected with spindle motor by many contracts band.
Further, described axial loading device is single pneumatic spring charger, comprises the first air strainer, the first reduction valve, the first oil sprayer, the first reversal valve, gliding mass bearing, bearing, load posts, load dish, first piston, the first cylinder, the first gliding mass and the first handwheel, described the first gliding mass is arranged on the gliding mass bearing, the first handwheel is connected with the first gliding mass, the first cylinder is fixed on the first gliding mass, by first piston, be connected with spring, the other end of spring is connected with the load dish, by load posts, bearing to be measured is loaded, the front and rear part of the first cylinder is connected with outlet B with the outlet A of the first reversal valve respectively, the import P of the first reversal valve is connected with the gas outlet pipeline of the first oil sprayer, the import of the first oil sprayer is connected with the export pipeline of the first reduction valve, the import of the first reduction valve is connected with the export pipeline of the first air strainer, the import of the first air strainer is connected with draft tube.
Further, described radial loaded device comprises the second air strainer, the second reduction valve, the second oil sprayer, the second reversal valve and two pneumatic spring chargers, two pneumatic spring chargers respectively from the angle of degree to bearing combination loading to be measured, each pneumatic spring charger comprises load piece, the second piston, the second cylinder, the second handwheel, slide block, the second gliding mass, lock-screw and support, described slide block is installed on the second gliding mass and is connected with the second handwheel, the second cylinder is fixed on slide block, by the second piston, be connected with spring, the other end of spring loads bearing to be measured by load posts, the outlet A of the second reversal valve is connected with the front end of the second cylinder of two pneumatic spring chargers, the outlet B of the second reversal valve is connected with the tail end of the second cylinder of two pneumatic spring chargers, the import P of the second reversal valve is connected with the gas outlet pipeline of the second oil sprayer, the import of the second oil sprayer is connected with the export pipeline of the second reduction valve, the import of the second reduction valve is connected with the export pipeline of the second air strainer, the import of the second air strainer is connected with draft tube.
The beneficial effects of the utility model are: at high rotating speed, stable under the test condition of large load, the main shaft running accuracy is high and generate heat littlely, can be used for deep groove ball bearing, angular contact ball bearing, taper roll bearing, the vibration-testing of cylinder roller bearing and self-aligning roller bearing.
The accompanying drawing explanation
Fig. 1 is the front view of bearing vibration speed measurer;
Fig. 2 is the left view of bearing vibration speed measurer;
Fig. 3 is fluid pressure drive shaft schematic diagram;
Fig. 4 is the axial loading device schematic diagram;
Fig. 5 is radial loaded device schematic diagram;
Fig. 6 is the electric schematic diagram of measuring amplifier amplifier;
In figure, body 1, hydraulic static spindle 2, axial loading device 3, sensor adjusting gear 4, measuring amplifier 5, spindle motor 6, radial loaded device 7, sensor 8, oil supply system 9, motor 10, coarse filter 11, oil pump 12, surplus valve 13, tensimeter 14, fine filter 15, retaining valve 16, pressure switch 17, multi-wedge belt pulley 18, main shaft 19, hydrodynamic journal liquid polymers 20, the first air strainer 21, the first reduction valve 22, the first oil sprayer 23, the first reversal valve 24, gliding mass bearing 25, bearing 26 to be measured, load posts 27, load dish 28, first piston 29, the first cylinder 30, the first gliding mass 31, the first handwheel 32, the second air strainer 33, the second reduction valve 34, the second oil sprayer 35, the second reversal valve 36, load piece 37, the second piston 38, the second cylinder 39, the second handwheel 40, slide block 41, the second gliding mass 42, lock-screw 43, support 44, main shaft housing 45.
Embodiment
Referring to accompanying drawing 1 and accompanying drawing 2, the bearing vibration speed measurer of the present embodiment comprises frame 1, hydraulic static spindle 2, axial loading device 3, sensor adjusting gear 4, measuring amplifier 5, active motor 6, radial loaded device 7, sensor 8 and oil supply system 9.Hydraulic static spindle 2, axial loading device 3, radial loaded device 7, active motor 6 and oil supply system 9 are fixed on frame 1.The front end of fluid pressure drive shaft 2 is settled bearing 26 to be measured by mandrel, and rear end is connected with spindle motor 6 by many contracts band.9 pairs of hydraulic static spindle 2 fuel feeding of oil supply system.Sensor 8 be positioned at bearing 26 to be measured directly over position, be fixedly connected on sensor adjusting gear 4, and be connected with measuring amplifier 5.Sensor adjusting gear 4 is positioned at hydraulic static spindle 2 tops, and axial loading device 3 and radial loaded device 7 are positioned at the place ahead of hydraulic static spindle 2.
Referring to accompanying drawing 3, the oil supply system 9 of the present embodiment comprises motor 10, coarse filter 11, oil pump 12, surplus valve 13, tensimeter 14, fine filter 15, retaining valve 16, pressure switch 17.The output shaft of motor 10 is connected with oil pump 12, the oil-in of oil pump 12 is connected with the fuel tank pipeline by coarse filter 11, oil-out is connected with surplus valve 13 pipelines with retaining valve 16 respectively, the other end of spill valve 13 is connected with the fuel tank pipeline, the other end of retaining valve 16 by fine filter 15 to hydraulic static spindle 2 fuel feeding, setting pressure table 14 and pressure switch 17 on retaining valve 16 and pipeline that fine filter 15 is connected.
Referring to accompanying drawing 3, the hydraulic static spindle 2 of the present embodiment comprises multi-wedge belt pulley 18, main shaft 19, hydrodynamic journal liquid polymers 20 and main shaft housing 45.Main shaft 19 is installed in hydrodynamic journal liquid polymers 20 by hydrodynamic journal liquid polymers 20, and the afterbody of main shaft 19 is installed multi-wedge belt pulley 18, and many contracts belt wheel 18 is connected with spindle motor 6.The hydrodynamic journal liquid polymers 20 that axially and radially all adopt of main shaft 19 support, and it is high that it has running accuracy, and thermal value is little, smooth running, and shock resistance reaches well the characteristics such as long service life.It by spindle motor 6 by 18 transmissions of many contracts belt wheel.Before main shaft 19 starts, at first start fuel feeding oil pump 12, main shaft 19 is suspended by pressure oil in hydrodynamic journal liquid polymers 20 chambeies, and then start main shaft.The end play of described hydraulic static spindle 2 is 0.04 ~ 0.05mm, and radial play is 0.035 ~ 0.04mm.Adopt this main axle structure, on the one hand owing to starting and all not damaging the main shaft precision during work, therefore use properly, main shaft is extended accuracy life greatly; During on the other hand due to main shaft startup and work, main shaft is all suspended by pressure oil, therefore the required moment that turns round is very little, makes the spindle heat generation amount little.
Referring to accompanying drawing 4, the axial loading device 3 of the present embodiment is single pneumatic spring charger, comprises the first air strainer 21, the first reduction valve 22, the first oil sprayer 23, the first reversal valve 24, gliding mass bearing 25, bearing 26, load posts 27, load dish 28, first piston 29, the first cylinder 30, the first gliding mass 31 and the first handwheel 32.The first gliding mass 31 is arranged on gliding mass bearing 25, the first handwheel 32 is connected with the first gliding mass 31, the first cylinder 30 is fixed on the first gliding mass 31, by first piston 29, be connected with spring, the other end of spring is connected with load dish 28, by 27 pairs of bearings 26 to be measured of load posts, load, the front and rear part of the first cylinder 30 is connected with outlet B with the outlet A of the first reversal valve 24 respectively, the import P of the first reversal valve 24 is connected with the gas outlet pipeline of the first oil sprayer 23, the import of the first oil sprayer 23 is connected with the export pipeline of the first reduction valve 22, the import of the first reduction valve 22 is connected with the export pipeline of the first air strainer 21, the import of the first air strainer 21 is connected with draft tube.By the first cylinder 30, promote first piston 29 motions, the load posts 27 that first piston 29 promotes on load dish 28 contacts bearing 26 to be tried, then, by the first handwheel 32 Compress Springs, treats examination bearing 26 and load axial load.Tighten set nut and fix the first gliding mass 31, like this, while testing same model bearing, without regulating again axial loading device 3 positions, only need realize loading and uninstall process by adjustable change valve, simple and convenient.
Referring to accompanying drawing 5, the radial loaded device 7 of the present embodiment comprises the second air strainer 33, the second reduction valve 34, the second oil sprayer 35, the second reversal valve 36 and two pneumatic spring chargers, two pneumatic spring chargers respectively from the angles of 45 degree to test bearing 26 combination loadings, each pneumatic spring charger specifically comprises load piece 37, the second piston 38, the second cylinder 39, the second handwheel 40, slide block 41, the second gliding mass 42, lock-screw 43 and support 44.Slide block 41 is installed on the second gliding mass 42 and is connected with the second handwheel 40, the second cylinder 39 is fixed on slide block 41, by the second piston 38, be connected with spring, the other end of spring loads by 27 pairs of bearings 26 to be measured of load posts, the outlet A of the second reversal valve 36 is connected with the front end of the second cylinder 39 of two pneumatic spring chargers, the outlet B of the second reversal valve 36 is connected with the tail end of the second cylinder 39 of two pneumatic spring chargers, the import P of the second reversal valve 36 is connected with the gas outlet pipeline of the second oil sprayer 35, the import of the second oil sprayer 35 is connected with the export pipeline of the second reduction valve 34, the import of the second reduction valve 34 is connected with the export pipeline of the second air strainer 33, the import of the second air strainer 33 is connected with draft tube.By the second cylinder 39, promote the second piston 38 motions, the load posts 37 engaged test bearings that the second piston 38 promotes on the load dish, then by handwheel 40 Compress Springs, test bearing is loaded to radial load.Tighten fixedly slide block 41 of set nut 43, like this, while testing same model bearing, radially carry setting position without regulating to add again, only need realize loading and uninstall process by adjustable change valve, simple and convenient
Referring to accompanying drawing 6, the measuring amplifier of this enforcement body for the electric signal that sensor is picked up amplify, through circuit such as filtering, detection, indicating values, then send into each gauge outfit.Three gauge outfits of measuring amplifier show respectively the root-mean-square value of radial vibration speed in test bearing outer ring at basic, normal, high three frequency bands.In measuring amplifier, be provided with preset definite value circuit, can also be provided with monitoring circuit for Quick Measurement, the operator monitors the noise quality of test bearing altogether.In addition, the measuring amplifier rear panel is provided with four BNC sockets, exports respectively high, medium and low and vibration signal passband, in order to be connected with other analytical instrument, bear vibration is done further to analyze.
The utility model is at high rotating speed, stable under the test condition of large load, and the main shaft running accuracy is high and generate heat littlely, can be used for deep groove ball bearing, angular contact ball bearing, taper roll bearing, the vibration-testing of cylinder roller bearing and self-aligning roller bearing.
Claims (5)
1. bearing vibration speed measurer, it is characterized in that, comprising: frame (1), hydraulic static spindle (2), axial loading device (3), sensor adjusting gear (4), measuring amplifier (5), active motor (6), radial loaded device (7), sensor (8) and oil supply system (9); Wherein, described hydraulic static spindle (2), axial loading device (3), radial loaded device (7), active motor (6) and oil supply system (9) all are fixed on frame (1); The front end of fluid pressure drive shaft (2) is installed bearing to be measured (26) by mandrel, and rear end is connected with spindle motor (6) by many contracts band; Oil supply system (9) is to hydraulic static spindle (2) fuel feeding; Sensor (8) be positioned at bearing to be measured (26) directly over position, be fixedly connected on sensor adjusting gear (4) upper, and be connected with measuring amplifier (5); Sensor adjusting gear (4) is positioned at hydraulic static spindle (2) top, and axial loading device (3) and radial loaded device (7) are positioned at the place ahead of hydraulic static spindle (2).
2. bearing vibration speed measurer according to claim 1, it is characterized in that, described oil supply system (9) comprises motor (10), coarse filter (11), oil pump (12), surplus valve (13), tensimeter (14), fine filter (15), retaining valve (16) and pressure switch (17); The output shaft of described motor (10) is connected with oil pump (12), the oil-in of oil pump (12) is connected with the fuel tank pipeline by coarse filter (11), oil-out is connected with surplus valve (13) pipeline with retaining valve (16) respectively, the other end of spill valve (13) is connected with the fuel tank pipeline, the other end of retaining valve (16) by fine filter (15) to hydraulic static spindle (2) fuel feeding, setting pressure table (14) and pressure switch (17) on retaining valve (16) and pipeline that fine filter (15) is connected.
3. bearing vibration speed measurer according to claim 1, is characterized in that, described hydraulic static spindle (2) comprises multi-wedge belt pulley (18), main shaft (19), hydrodynamic journal liquid polymers (20) and main shaft housing (45); Described main shaft (19) is installed in hydrodynamic journal liquid polymers (20) by hydrodynamic journal liquid polymers (20), and the afterbody of main shaft (19) is installed multi-wedge belt pulley (18), and many contracts belt wheel (18) is connected with spindle motor (6) by many contracts band.
4. bearing vibration speed measurer according to claim 1, it is characterized in that, described axial loading device (3) is single pneumatic spring charger, comprises the first air strainer (21), the first reduction valve (22), the first oil sprayer (23), the first reversal valve (24), gliding mass bearing (25), bearing (26), load posts (27), load dish (28), first piston (29), the first cylinder (30), the first gliding mass (31) and the first handwheel (32), described the first gliding mass (31) is arranged on gliding mass bearing (25), the first handwheel (32) is connected with the first gliding mass (31), the first cylinder (30) is fixed on the first gliding mass (31), by first piston (29), be connected with spring, the other end of spring is connected with load dish (28), by load posts (27), bearing to be measured (26) is loaded, the front and rear part of the first cylinder (30) is connected with outlet B with the outlet A of the first reversal valve (24) respectively, the import P of the first reversal valve (24) is connected with the gas outlet pipeline of the first oil sprayer (23), the import of the first oil sprayer (23) is connected with the export pipeline of the first reduction valve (22), the import of the first reduction valve (22) is connected with the export pipeline of the first air strainer (21), the import of the first air strainer (21) is connected with draft tube.
5. bearing vibration speed measurer according to claim 1, it is characterized in that, described radial loaded device (7) comprises the second air strainer (33), the second reduction valve (34), the second oil sprayer (35), the second reversal valve (36) and two pneumatic spring chargers, two pneumatic spring chargers respectively from the angles of 45 degree to bearing to be measured (26) combination loading, each pneumatic spring charger comprises load piece (37), the second piston (38), the second cylinder (39), the second handwheel (40), slide block (41), the second gliding mass (42), lock-screw (43) and support (44), described slide block (41) is installed the second gliding mass (42) above and is connected with the second handwheel (40), the second cylinder (39) is fixed on slide block (41), by the second piston (38), be connected with spring, the other end of spring loads bearing to be measured (26) by load posts (27), the outlet A of the second reversal valve (36) is connected with the front end of second cylinder (39) of two pneumatic spring chargers, the outlet B of the second reversal valve (36) is connected with the tail end of second cylinder (39) of two pneumatic spring chargers, the import P of the second reversal valve (36) is connected with the gas outlet pipeline of the second oil sprayer (35), the import of the second oil sprayer (35) is connected with the export pipeline of the second reduction valve (34), the import of the second reduction valve (34) is connected with the export pipeline of the second air strainer (33), the import of the second air strainer (33) is connected with draft tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203899439U CN203310509U (en) | 2013-07-01 | 2013-07-01 | Bearing vibration velocity measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203899439U CN203310509U (en) | 2013-07-01 | 2013-07-01 | Bearing vibration velocity measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN203310509U true CN203310509U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203899439U Withdrawn - After Issue CN203310509U (en) | 2013-07-01 | 2013-07-01 | Bearing vibration velocity measuring instrument |
Country Status (1)
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| CN (1) | CN203310509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344318A (en) * | 2013-07-01 | 2013-10-09 | 杭州轴承试验研究中心有限公司 | Bearing vibration velocity measuring instrument |
| CN105729243A (en) * | 2016-04-27 | 2016-07-06 | 成都飞机工业（集团）有限责任公司 | Dynamic precision detection system with load |
-
2013
- 2013-07-01 CN CN2013203899439U patent/CN203310509U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344318A (en) * | 2013-07-01 | 2013-10-09 | 杭州轴承试验研究中心有限公司 | Bearing vibration velocity measuring instrument |
| CN103344318B (en) * | 2013-07-01 | 2015-08-26 | 杭州轴承试验研究中心有限公司 | Bearing vibration speed measurer |
| CN105729243A (en) * | 2016-04-27 | 2016-07-06 | 成都飞机工业（集团）有限责任公司 | Dynamic precision detection system with load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |