CN207585913U - A kind of axially loaded locator of micro rolling ball bearing vibration-testing - Google Patents

Abstract

The utility model discloses a kind of axially loaded locators of micro rolling ball bearing vibration-testing, including positioning seat, second forcing shaft, afterburning blocks and positioning bolt, the first installation slotted eye and the second installation slotted eye are offered respectively in the both sides of positioning seat, bolt installation through-hole is additionally provided on positioning seat, and the first matching hole is further opened on the second forcing shaft, the second matching hole for offering the bearing location hole in corresponding aperture in each afterburning blocks and being connected with the bearing location hole, and one end of each afterburning blocks corresponding can be mounted at the second installation slotted eye, and second matching hole docked with the other end of bolt installation through-hole, afterburning blocks, positioning seat and the second forcing shaft are sequentially connected by positioning bolt.The utility model solves the problems, such as that existing equipment is less than 13 bold and unconstrained rice for outer diameter and is unable to test vibration with lower bearing, improves product quality, meets customer requirement.

Description

A kind of axially loaded locator of micro rolling ball bearing vibration-testing

Technical field

The utility model is related to the finished product vibration-testing fields of deep groove ball bearing, and in particular to a kind of micro rolling ball bearing vibration Test axially loaded locator.

Background technology

Rolling bearing will directly influence master as the swivel mounting member in mechanical equipment, the stable movement performance of its own The robust motion of machine.Steady during in order to ensure bearing working, China's current standard regulation examines bearing using bear vibration Dynamic mass.With the rapid development of modern industrial technology, bearing is widely used to：Textile machine, air-conditioning and all kinds of families Electrical appliance, automobile, electric tool, Medical Devices, office equipment, low noise motor etc..Various motor products are to the dynamic of bearing Quality requirement is higher and higher, and bear vibration has become one of project that must be examined.Therefore Production of bearing producer is in deep-groove ball axis After the completion of installation is matched, it is intended to carry out bearing finished products 100% vibration-testing, could dispatches from the factory after test passes.

First, the definition of bear vibration and parameter

Bear vibration refers to bearing in operation process, and in addition to movement necessary to bearing function, Bearing inner owns The movement of other all deviation ideal positions that part occurs.During exercise, ideal position is deviateed in inner ring or outer ring to bearing Movement can be analyzed to be axially moved and radial motion, commonly referred to as axial vibration and radial vibration.Under normal circumstances, radial bearing Radial vibration it is stronger than axial vibration, the influence to host performance is also relatively large, therefore, professional standard regulation examination it is centripetal Radial vibration is only examined during bear vibration.For mechanized equipment, in description wherein machine components or component motion state, usually It is evaluated with the speed in physics and acceleration.It is thus determined that when there is the movement for deviateing ideal position in Bearing inner part It is used as the parameter of evaluation using speed and acceleration.Production practices prove, for be used in rotating speed it is relatively low under the conditions of bearing, Vibration is mainly manifested in low frequency, since quality test of pile is more sensitive to low-frequency vibration, so being tried using velocity measurement.For Bearing under rotating speed higher strip part, vibration is mainly manifested in high frequency, since acceleration type sensor is to high-frequency vibration ratio It is more sensitive, so being tested using amount of acceleration.At most amount of acceleration is used to test in Production of bearing at present.

2nd, measuring method

Measuring method is that bearing inner race is mounted in the very high rotary shaft of a running accuracy, and outer ring is allowed not turn, is tested The movement that outer ring is inspired when inner ring rotates.The most commonly used is acceleration type bearing vibration measuring instrument in the production of bearing producer, The measuring instrument is formed by first driving means 1, loading locator 2 and sensor 3, test equipment 4 and is seen Fig. 1.First driving means 1 Measured bearing inner ring is driven to rotate, loading locator 2 applies to measured bearing outer ring measures load, they are used to excite measured axis The vibration held.Sensor 3 and corresponding installing component constitute chromacoder, for swashing when measured bearing inner ring is rotated The vibration acceleration of hair is converted into that electric signal can be tested.The decibel value tested through enhanced processing shows the instruction of apparent test equipment 4 On table 5.There are many model of bearing, and specification is not of uniform size, at present for bearing outside diameter be more than 13 bold and unconstrained rice with the detection of upper bearing (metal) it Loading locator structure such as Fig. 2, loading locator 2 by the first forcing shaft 2-1, the first spring 2-2, fixed seat 2-3, reinforcing The compositions such as pawl 2-4, the first fixed screw 2-5.Pawl 2-4 is reinforced when the reduced diameter of bearing to be adjusted to center of circle O directions, make to add Power pawl 2-4 is withstood on always on the suitable position of bearing outer ring end face, so as to fulfill the loading to bearing face, with complete matched bearings The detection of vibration.The motor of motor in the market develops to energy saving, microminaturization, high efficiency, high rotating speed at present, and institute on motor Bearing also very little, and the quality of bearing is particularly vibrated have very high requirement with mute, this requires outer diameter is less than 13 bold and unconstrained rice have to 100% vibration measuring to meet quality requirement of the client to the class bearing before dispatching from the factory with lower bearing.It is but conventional at present The loading locator used can not be adjusted to the suitable position of the class bearing, therefore can not detect such miniature bearing.

Utility model content

The purpose of this utility model is to devise a kind of micro rolling ball bearing in order to solve above-mentioned the deficiencies in the prior art and shake The dynamic axially loaded locator of test can be adjusted to the suitable position of miniature bearing, in order to accurate vibration measuring.

To achieve these goals, a kind of axially loaded positioning of micro rolling ball bearing vibration-testing designed by the utility model Device, including positioning seat, the second forcing shaft, multiple afterburning blocks and a positioning bolt with different pore size, in the positioning seat Both sides offer the first installation slotted eye and the second installation slotted eye respectively, and it is logical to be additionally provided on the positioning seat bolt installation Hole, described bolt installation through-hole one end extend to the first installation slotted eye, and the other end extends to the second installation slotted eye, described second Second spring is also socketed on forcing shaft, and the first matching hole is further opened on second forcing shaft, second reinforcing Axis one end fits are mounted at the first installation slotted eye, and first matching hole is docked with one end of bolt installation through-hole, each The second matching hole that the bearing location hole in corresponding aperture is offered in afterburning blocks and is connected with the bearing location hole, and it is every One end of a afterburning blocks corresponding can be mounted at the second installation slotted eye, and second matching hole and bolt installation through-hole The other end docks, and the positioning bolt is from the bearing location hole of afterburning blocks stretches to the second matching hole successively, bolt installation is led to Hole and the first matching hole, accordingly afterburning blocks, positioning seat and the second forcing shaft are sequentially connected by positioning bolt.

Further, a side outer diameter of each afterburning blocks is consistent with the outer diameter of corresponding miniature bearing respectively.

During vibration measuring, the outer diameter of miniature bearing is first measured, the afterburning blocks consistent with miniature bearing outer diameter is selected, enables itself and positioning Seat and the second forcing shaft are assembled into axially loaded locator jointly, then machine and miniature bearing are attached to the precision of vialog In rotary shaft, and the side of miniature bearing is made to coordinate the side endface for being connected to afterburning blocks, adjusted by miniature bearing outer diameter The position of good sensor, driving handle causes the second forcing shaft axially to apply pressure toward it, entire to load locator axial movement, So that afterburning blocks press to miniature bearing side, the loading of the axial force of miniature bearing is completed, then passes through sensor and measurement Instrument feeds back the vibration data of bearing, often to carry out positive and negative test to bearing in test sometimes, such a The operation of one bearing of bearing realizes the bearing for being less than 13 bold and unconstrained rice to outer diameter, the test of miniature bearing that cannot be surveyed in the past.

A kind of axially loaded locator of micro rolling ball bearing vibration-testing that the utility model obtains, solves existing equipment pair It is less than the problem of 13 bold and unconstrained rice are unable to test vibration with lower bearing in outer diameter, improves product quality, meet customer requirement.

Description of the drawings

Fig. 1 is conventional ball bearings vibration-testing schematic diagram in background technology；

Fig. 2 is the schematic diagram of the axially loaded locator of conventional ball bearings in background technology；

Fig. 3 is the A of the axially loaded locator of conventional ball bearings in Fig. 2 to schematic diagram；

Fig. 4 is the utility model middle (center) bearing vibration-testing schematic diagram；

Fig. 5 is the assembling diagram of the utility model middle (center) bearing vibration-testing loading locator；

Fig. 6 is the decomposition view of the utility model middle (center) bearing vibration-testing loading locator；

In figure：First driving means 1, loading locator 2, sensor 3, test equipment 4, dial gauge 5, positioning seat 6, second Forcing shaft 7, afterburning blocks 8, positioning bolt 9, the first installation slotted eye 10, the second installation slotted eye 11, bolt installation through-hole 12, the second bullet Spring 13, the first matching hole 14, bearing location hole 15, the second matching hole 16, miniature bearing 17.

Specific embodiment

The utility model is further illustrated with reference to the accompanying drawings and examples.

Embodiment 1：

As shown in figures 1 to 6, a kind of axially loaded locator of micro rolling ball bearing vibration-testing designed by the utility model, packet Positioning seat 6, the second forcing shaft 7, multiple with the afterburning blocks 8 of different pore size and a positioning bolt 9 is included, in the positioning seat 6 Both sides offer the first installation slotted eye 10 and the second installation slotted eye 11 respectively, and bolt is additionally provided on the positioning seat 6 Installation through-hole 12, described 12 one end of bolt installation through-hole extend to the first installation slotted eye 10, and the other end extends to the second mounting groove Hole 11 is also socketed with second spring 13 on second forcing shaft 7, and is further opened with first on second forcing shaft 7 Matching hole 14,7 one end fits of the second forcing shaft are mounted at the first installation slotted eye 10, and first matching hole 14 and spiral shell One end docking of bolt installation through-hole 12, offer in each afterburning blocks 8 corresponding aperture bearing location hole 15 and with it is described The second matching hole 16 that bearing location hole 15 connects, and one end of each afterburning blocks 8 corresponding can be mounted on the second mounting groove At hole 11, and second matching hole 16 is docked with the other end of bolt installation through-hole 12, and the positioning bolt 9 is from afterburning blocks 8 bearing location hole 15 stretches to the second matching hole 16,12 and first matching hole 14 of bolt installation through-hole successively, accordingly described Afterburning blocks 8,6 and second forcing shaft 7 of positioning seat are sequentially connected by positioning bolt 9.

In the present embodiment, a side outer diameter of each afterburning blocks 8 is consistent with the outer diameter of corresponding miniature bearing 17 respectively.

During vibration measuring, the outer diameter of miniature bearing 17 is first measured, the afterburning blocks 8 consistent with 17 outer diameter of miniature bearing is selected, enables it It is assembled into axially loaded locator jointly with 6 and second forcing shaft 7 of positioning seat, a miniature bearing 17 of then machining is attached to survey On the precision rotation axis 18 of Vibration Meter, and the side of miniature bearing 17 is made to coordinate the bearing location hole 15 for being connected to afterburning blocks 8 Endface, the position of sensor 3 is adjusted by 17 outer diameter of miniature bearing, and driving handle 19 causes the second forcing shaft 7 toward its axial direction Apply pressure, it is entire to load locator axial movement so that afterburning blocks 8 press to 17 side of miniature bearing, complete miniature bearing Then the loading of 17 axial force is fed back the vibration data of bearing by sensor 3 and measuring instrument 4, surveying sometimes Positive and negative test is often carried out during examination to bearing, the operation of such a one bearing of bearing, which realizes, is less than outer diameter 13 persons of outstanding talent The test of the bearing, the miniature bearing that cannot be surveyed in the past of rice.

Claims (2)

1. a kind of axially loaded locator of micro rolling ball bearing vibration-testing, it is characterised in that：Including positioning seat（6）, second reinforcing Axis（7）, multiple afterburning blocks with different pore size（8）With a positioning bolt（9）, in the positioning seat（6）Both sides difference Offer the first installation slotted eye（10）With the second installation slotted eye（11）, and in the positioning seat（6）On be additionally provided with bolt installation Through-hole（12）, the bolt installation through-hole（12）One end extends to the first installation slotted eye（10）, the other end extends to the second installation Slot（11）, in second forcing shaft（7）On be also socketed with second spring（13）, and in second forcing shaft（7）It is upper to go back Offer the first matching hole（14）, second forcing shaft（7）One end fits are mounted on the first installation slotted eye（10）Place, and it is described First matching hole（14）With bolt installation through-hole（12）One end docking, each afterburning blocks（8）On offer corresponding aperture Bearing location hole（15）And with the bearing location hole（15）Second matching hole of connection（16）, and each afterburning blocks（8）'s One end corresponding can be mounted on the second installation slotted eye（11）Place, and second matching hole（16）With bolt installation through-hole（12） Other end docking, and the positioning bolt（9）From afterburning blocks（8）Bearing location hole（15）The second matching hole is stretched to successively （16）, bolt installation through-hole（12）With the first matching hole（14）, accordingly afterburning blocks（8）, positioning seat（6）With the second reinforcing Axis（7）Pass through positioning bolt（9）It is sequentially connected.

2. according to a kind of axially loaded locator of micro rolling ball bearing vibration-testing described in claim 1, it is characterised in that：Often A afterburning blocks（8）A side outer diameter respectively with corresponding miniature bearing（17）Outer diameter it is consistent.