CN207703136U - Plain bearing bush gap measuring apparatus - Google Patents

Abstract

The utility model discloses a kind of plain bearing bush gap measuring apparatus, plain bearing bush gap measuring apparatus includes sliding bearing rotary shaft support lifting apparatus and displacement measuring device, sliding bearing rotary shaft support lifting apparatus includes supporter, and supporter has the arcwall face for housing rotary shaft；The first fixed mechanism is provided on supporter, the first fixed mechanism between supporter and the power source for providing the effect of lifting for will be fixed；Displacement measuring device is used to measure the variable quantity of the raising height and bearing shell of rotary shaft on lifting direction.The raising height and bearing shell to be measured of the rotary shaft of bearing housing both sides where measuring bearing shell to be measured using above-mentioned apparatus are after rotary shaft lifts the variable quantity on direction, then directly calculate bush gap.What the utility model was capable of safety and stability is supported rotary shaft and lifts operation, can accurately control rotary shaft raising height, and realize quick, the accurate measurement of bush gap.

Description

Plain bearing bush gap measuring apparatus

Technical field

The utility model belongs to sliding bearing technical field, more particularly to plain bearing bush gap measuring apparatus.

Background technology

Major part steam turbine, TRT generating sets complete the support to rotary body using sliding bearing at present, in many feelings Under condition, need the rotary shaft of sliding bearing to be supported and is lifted operation.For example, bearing shell is the critical component of sliding bearing, The gap of bearing shell and axle journal is even more the key parameter of rotating machinery maintenance.Such bearing shell is mostly that four oily leaves fix bearing shell, surface material Matter is babbit, and the material is soft, when equipment is run due to vibration and oil film formed it is bad, easily cause wear or damage. Therefore when equipment downtime overhauls, it is necessary to carry out inspection and maintenance and maintenance to bearing shell.Inspection and maintenance and maintenance when, just need by Rotary shaft lifts certain altitude, could rout up lower watt.

Current rotary shaft lift axis method is rotated using such method using driving suspension chain block pull-up rotary shaft Axis and the contact zone on chain block are smaller, be easy to cause rotary shaft run-off the straight in hoisting process.And rotary shaft with pull Cucurbit contact zone is small so that the easy generation sliding on the rotary shaft of the contact point of the two, is slinging to be further exacerbated by rotary shaft Inclination in the process.In addition service personnel operates chain block dynamics and is difficult to control, easily cause rotary shaft and stator friction and Collision.

After carrying out the inspection and maintenances such as scraping and overhaul plan to bearing shell surface, bearing shell and axle journal gap need to be measured Adjustment.Current bearing shell is mostly " lead extrusion method " with axle journal top gap On-line Measuring Method, because four oily leaf tile fragment centers are in Vertical Square It is distributed in 45 ° of angles, diameter of axle upper vertical direction oil-recovery tank between two tile fragments can not implement " lead extrusion method " and directly be surveyed Amount.And with the inside micrometer direct method of measurement, it is necessary to hang out rotor, just may be used in uneasy cartridge rotor fit on step It measures, such method heavy workload, and maintenance downtime is longer, seriously affects power benefit.

Therefore, secured fashion how is taken to be supported and be lifted operation by sliding bearing rotary shaft, and quickly, accurately It is that those skilled in the art need the important technological problems solved at present that bearing shell, which is measured, with diameter of axle top gap.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of plain bearing bush gap measuring apparatus, can either Safety and steady lifts rotary shaft, and can accurately control rotary shaft raising height, and then realizes quick, the accurate survey of bush gap Amount.

In order to solve the above technical problems, plain bearing bush gap measuring apparatus provided by the utility model includes sliding axle Rotary shaft support lifting apparatus and displacement measuring device are held, the sliding bearing rotary shaft support lifting apparatus includes support Body, the supporter have the arcwall face for housing rotary shaft；It is provided with the first fixed mechanism on the supporter, described One fixed mechanism between the supporter and the power source for providing the effect of lifting for will be fixed；Institute's displacement measurement device The variable quantity of raising height and bearing shell on lifting direction for measuring rotary shaft.

In the above-mentioned technical solutions, supporter is consolidated with the power source for providing the effect of lifting by the first fixed mechanism It is fixed, and rotary shaft is placed in arcwall face, power source applies lifting force to supporter, and is lifted rotary shaft by supporter It rises.Above-mentioned sliding bearing rotary shaft support lifting apparatus is provided with the arcwall face of accommodating rotary shaft, i.e., outside arcwall face and rotary shaft Shape is adapted, thus is arc between above-mentioned sliding bearing rotary shaft support lifting apparatus and rotary shaft when being lifted rotary shaft Face between face and rotary shaft contacts, and non-dots or line contact, it is possible to prevente effectively from rotary shaft occurs up and down during lifting Inclination, which either produces relative sliding between arcwall face, also can effectively avoid rotary shaft that friction or collision occurs with nail, So that the lifting more safety and steady of rotary shaft, is also just more advantageous to the promotion dynamics or speed for grasping power source.Above-mentioned cunning Dynamic bearing rotary shaft supports lifting operation of the lifting apparatus in addition to can be used for rotary shaft, can also be initially by supporter Arcwall face be placed in below rotary shaft and supporter and power source be fixed, then by the vertical direction of power source Lifting acts on so that the arcwall face of supporter is close to rotary shaft, and stops lifting after arcwall face is just contacted with rotary shaft, i.e., Lifting apparatus is supported to support rotary shaft by above-mentioned sliding bearing rotary shaft.It is lifted since above-mentioned sliding bearing rotary shaft supports It rises and is supported for face between device and rotary shaft, it, can when being operated again to the other component of rotary shaft or sliding bearing later Effectively to avoid rotary shaft that tilted upward occurs or generate sliding between the arcwall face of supporter so as to the branch of rotary shaft Support more safety and steady.Above-mentioned sliding bearing rotary shaft support lifting apparatus the rotary shaft of sliding bearing can be provided support and Lifting acts on, vdiverse in function, and has the characteristics that support and lifting effect security and stability are high.

In the above-mentioned technical solutions, on the one hand support lifting apparatus can be to rotation by above-mentioned sliding bearing rotary shaft Axis forms the supporting role of safety and steady, also facilitates the sliding bearing bearing housing except bearing housing where bearing shell to be measured Upper ball cover and bearing shell are quickly removed, and rotary shaft can be kept not move up and down or slide in removal process. On the other hand above-mentioned sliding bearing rotary shaft is respectively provided with to the rotary shaft of bearing housing both sides where bearing shell to be measured and supports lifting Device, the lifting that safety and steady can be also respectively formed to the rotary shaft of bearing housing both sides where bearing shell to be measured act on, to The rotary shaft of bearing housing both sides where bearing shell to be measured can be synchronized and steadily be lifted, raising height is denoted as H1 and H2 respectively, and Bearing shell to be measured is lifted into the variable quantity on direction in rotary shaft and is denoted as H3.

Through the above technical solutions, being conducive to keep the steady change and accuracy of H1 and H2, the two is avoided acutely to become Dynamic, the rotary shaft to be conducive to bearing housing both sides where keeping bearing shell to be measured synchronizes lifting.And it is equipped with displacement measuring device, It is more advantageous to the variable quantity of the raising height for accurately controlling rotary shaft and speed and bearing housing, keeps to be measured to be more advantageous to The rotary shaft of bearing housing both sides synchronizes lifting where measuring bearing shell, and the rotary shaft of bearing housing both sides occurs where preventing bearing shell to be measured It tilts.Displacement measuring device is matched with above-mentioned sliding bearing rotary shaft support lifting apparatus, the safety that the latter is provided Stable lifting effect is but also the displacement measurement of rotary shaft and bearing housing and control are more accurate.

The plain bearing bush gap measuring apparatus can either safety and steady lift rotary shaft, and rotation can be accurately controlled The variable quantity of axis raising height and bearing housing thereby may be ensured that the steady change and accuracy of H1, H2, H3, Jin Ertong Bush gap H=(H1+H2)/2-H3 of bearing shell to be measured can be obtained by crossing numerical computations, realize quick, the accurate survey of bush gap Amount.Thus Pass through above-mentioned technical proposal makes the calculating of bush gap more quickly, accurately.

As being further improved for technical solutions of the utility model, first fixed mechanism is positioning sleeve, the positioning One end of set is connect with the supporter, and the endoporus of the positioning sleeve end is cecum or is blocked in whole or in part, The positioning sleeve is used to entangle the tache motorice of the power source.By the way that the tache motorice of power source is inserted into positioning sleeve, Ke Yifang Just and firmly the fixation between supporter and power source is realized.

As being further improved for technical solutions of the utility model, the positioning sleeve endoporus is separately provided with stress surface, when After the tache motorice of power source is inserted into positioning sleeve, the tache motorice of power source resists stress surface, can increase the force of power source Area is also beneficial to further be maintained at stablizing relatively between positioning sleeve and power source during rotary shaft support and lifting, And then it is opposite between sliding bearing rotary shaft support lifting apparatus and power source during being maintained at rotary shaft support and being lifted Stablize.

As being further improved for technical solutions of the utility model, the positioning sleeve is provided with the second fixed mechanism, described Second fixed mechanism for will enter the positioning sleeve in power source tache motorice be fixed with positioning sleeve, to be conducive into One step is maintained at stablizing relatively between positioning sleeve and power source during rotary shaft support and lifting, and then is maintained at rotary shaft Stablizing relatively between sliding bearing rotary shaft support lifting apparatus and power source during support and lifting.

As being further improved for technical solutions of the utility model, flexible or elastomeric element is set on the arcwall face, On the one hand buffering and anti-skidding effect can be provided, improve the security and stability during rotary shaft support and lifting, on the other hand Certain buffer action can also be played between the arcwall face and rotating shaft surface of supporter, reduce rotary shaft support and lifting In the process to the damage of rotating shaft surface.

As being further improved for technical solutions of the utility model, institute's displacement measurement device is dial gauge, raising height Measurement with variable quantity is more accurately and conveniently.

Description of the drawings

The utility model is further detailed with reference to the accompanying drawings and detailed description.

Fig. 1 is a kind of structural schematic diagram of supporter in specific embodiment of the present invention.

Fig. 2 is another structural schematic diagram of supporter in specific embodiment of the present invention.

Fig. 3 is the connection diagram of the supporter and positioning sleeve in Fig. 1.

Fig. 4 is the side view of Fig. 3.

Fig. 5 is the connection diagram of the supporter and positioning sleeve in Fig. 2.

Fig. 6 is the side view of Fig. 5.

Fig. 7 to Fig. 9 is other three kinds of connection diagrams of the supporter and positioning sleeve in Fig. 2.

Figure 10 and Figure 11 is other two kinds of connection diagrams of the supporter and positioning sleeve in Fig. 1.

Figure 12 is the support and lifting of sliding bearing rotary shaft support lifting apparatus in specific embodiment of the present invention Schematic diagram.

Figure 13 is the side view of Figure 12.

Figure 14 is the structural schematic diagram of the second fixed mechanism in specific embodiment of the present invention.

Figure 15 is specific embodiment of the present invention intermediate bushing clearance measurement schematic diagram.

1, supporter；2, positioning sleeve；3, rotary shaft；4, power source；5, bolt；6/7, bearing housing；8, upper cover；9, percentage Table.

Specific implementation mode

It is only the drawing side for indicating attached drawing to be hereinafter directed to the orientation references of the "upper" "lower" " left side " " right side " made by attached drawing To, but be not that the utility model is fully defined in above-mentioned orientation references.

It is to use following method that bush gap measurement is carried out in present embodiment：

S1：The upper ball cover of sliding bearing bearing housing except bearing housing where bearing shell to be measured and bearing shell are removed, Rotary shaft is kept not move up and down in removal process.Such as if the rotary shaft of sliding bearing is equipped with former and later two bearing housings, It needs first to remove the upper ball cover of rear bearing housing and bearing shell when bush gap before measuring, then be needed when bush gap after a measurement First the upper ball cover of rear bearing housing and bearing shell are removed.Operation is to need to separate survey because front and back bush gap is different in this way Amount.Multiple bearing shells are as the same.

S2：The rotary shaft of bearing housing both sides where bearing shell to be measured is lifted, the raising heights of both sides be denoted as respectively H1 and H2 ensures H1 variations synchronous with H2 as possible during lifting.With the continuous lifting of rotary shaft, bearing shell to be measured is lifted in rotary shaft Rising finally can also change on direction, i.e., final bearing housing can also be lifted certain altitude, this is highly denoted as to the H3 (values of H3 It is set as needed, the value of H3 should be minimized).H1 and H2 is obtained on the basis of generating H3, i.e., bearing shell to be measured exists Rotary shaft is lifted certain variation (H3) has occurred on direction after, lift axis stops, and to obtain H1, H2 and H3, minimizes simultaneously The value of H3.

S3：Bush gap H=(H1+H2)/2-H3 of bearing shell to be measured.

Above-mentioned bush gap measurement method only needs the rotary shaft by bearing housing both sides where bearing shell to be measured to lift, then It is being rotated using bearing housing where the raising height and bearing shell to be measured of the rotary shaft of bearing housing both sides where bearing shell to be measured Axis, which lifts the variable quantity on direction, which carries out simple computation, can obtain bush gap.On the one hand without directly to axis to be measured It watt is operated, whether is how four oily blade profiles or bearing shell angle can measure from but regardless of used bearing shell, thus on The scope of application for stating method is wider.The another aspect above method is without hanging out rotor, under uneasy cartridge rotor fit on Bearing block measures, thus workload is small, simple and easy to do, measures quicker.Since the above method is to measure three accurate Bush gap value is directly obtained by operation after a value, thus obtains bush gap value more quickly, accurately.

In present embodiment, plain bearing bush gap measuring apparatus includes sliding bearing rotary shaft support lifting apparatus, Rotary shaft support lifting apparatus includes supporter 1, and there are one the arcwall faces for housing rotary shaft 3 for the tool of the supporter 1, or Can also supporter 1 be directly designed to inc tubulose, such as semicanal, figures 1 and 2 show that two kinds of supporter 1 are shown Example.The first fixed mechanism is provided on the supporter 1, first fixed mechanism is used for the supporter 1 and provides lift It is fixed between the power source 4 to work.

The sliding bearing rotary shaft support lifting apparatus at work, by the first fixed mechanism by supporter 1 with provide The power source 4 for lifting effect is fixed, and rotary shaft 3 is placed in arcwall face, and power source 4 applies to supporter 1 to be lifted Power, and be lifted rotary shaft 3 by supporter 1.The sliding bearing rotary shaft supports lifting apparatus to be provided with accommodating rotary shaft 3 Arcwall face, i.e. arcwall face are adapted with 3 shape of rotary shaft, thus when being lifted rotary shaft 3, sliding bearing rotary shaft support lift The face between device and rotary shaft 3 between arcwall face and rotary shaft 3 is risen to contact, and non-dots or line contact, during lifting It is possible to prevente effectively from rotary shaft 3 occurs tilted upward or produces relative sliding between arcwall face, also can effectively avoid revolving With nail friction or collision occur for shaft 3 so that it is dynamic to be also just more advantageous to grasp for the lifting of rotary shaft 3 more safety and steady The promotion dynamics or speed in power source 4.The sliding bearing rotary shaft supports lifting of the lifting apparatus in addition to can be used for rotary shaft 3 The arcwall face of supporter 1 can also initially be placed in below rotary shaft 3 and carry out supporter 1 and power source 4 by operation It is fixed, then make the arcwall face of supporter 1 close to rotary shaft 3 by the lifting effect on the vertical direction of power source 4, and Arcwall face stops lifting after just being contacted with rotary shaft 3, i.e., supports lifting apparatus to support by the sliding bearing rotary shaft Rotary shaft 3.It is supported for face between lifting apparatus and rotary shaft 3 since the sliding bearing rotary shaft supports, later again to rotary shaft 3 When either the other component of sliding bearing is operated it is possible to prevente effectively from rotary shaft 3 occur tilted upward or with supporter 1 Arcwall face between generate sliding so as to the support more safety and steady of rotary shaft 3.Sliding bearing rotary shaft support lifting Device can provide the rotary shaft 3 of sliding bearing support and lifting acts on, vdiverse in function, and with support and lifting effect The high feature of security and stability.

Diversified forms may be used in view of power source 4, the shape of positioning sleeve 2 can be especially used for the first fixed mechanism Formula.The generally column of positioning sleeve 2 (square column or cylinder) inside offers endoporus, interior axially bored line and 2 axis weight of positioning sleeve It closes, endoporus can be blind hole.One end of positioning sleeve 2 is connect with supporter 1, in the present embodiment, is and 1 arcwall face of supporter Connected back to face, Fig. 3 and Fig. 4 show the connection status of supporter 1 and positioning sleeve 2 in Fig. 1.Fig. 5 and Fig. 6 show figure The connection status of supporter 1 and positioning sleeve 2 in 2 is in Fig. 3 to Fig. 6, the axis and branch of positioning sleeve 2 after being connect with supporter 1 The busbar of 1 arcwall face of support body is vertical, and in the same plane with the busbar in the centre position of arcwall face.That is the axis of positioning sleeve 2 The opening direction of line direction and arcwall face is identical, and arcwall face is opening up in Fig. 3 to Fig. 6, and the axis of positioning sleeve 2 is also Vertical.But positioning sleeve 2 can also be made still to be connect back to face with supporter 1 arcwall face as needed, the axis of positioning sleeve 2 It is vertical with the busbar of 1 arcwall face of supporter but not in the same plane with the busbar in the centre position of arcwall face, Fig. 7 to Fig. 9 Three kinds of examples have been made using the supporter 1 in Fig. 2, in Fig. 7, the opening side of the axis direction of positioning sleeve 2 still with arcwall face To identical, but the axis of positioning sleeve 2 is not in the same plane with the busbar in the centre position of arcwall face；Positioning sleeve 2 in Fig. 8 Axis direction is different from the opening direction of arcwall face, and the axis of positioning sleeve 2 is not located at together with the busbar in the centre position of arcwall face In one plane；Arcwall face opening upwards in Fig. 9, and 2 axis horizontal of positioning sleeve.Figure 10 and Figure 11 utilizes the supporter 1 in Fig. 1 to make Two kinds of examples are gone out, the axis direction of Tu10Zhong, positioning sleeve 2 are still identical as the opening direction of arcwall face, but the axis of positioning sleeve 2 Line is not in the same plane with the busbar in the centre position of arcwall face；In Figure 11, the axis direction of positioning sleeve 2 and arcwall face Opening direction is different, and the axis of positioning sleeve 2 is not in the same plane with the busbar in the centre position of arcwall face.

If 2 endoporus of positioning sleeve is blind hole, after positioning sleeve 2 is connect with supporter 1, bore openings are outside, i.e., close to fixed 2 end of positioning sleeve of position 2 endoporus cecums of set is connect with supporter 1.If 2 endoporus of positioning sleeve is through hole, 2 one end of positioning sleeve and branch After support body 1 connects, supporter 1 blocks at the end of 2 endoporus of positioning sleeve in whole or in part.In figs. 3 and 4, positioning sleeve 2 one After end is connect with supporter 1,2 endoporus of the positioning sleeve end is all blocked.In fig. 5 and fig., the connecting pin design of positioning sleeve 2 The shape that 1 face of supporter that Cheng Yuqi is connected is adapted, in this way after the connecting pin of positioning sleeve 2 is connect with supporter 1, positioning The 2 endoporus end is covered still can all to be blocked.

For this power source 4 with telescopic end such as jack or hydraulic cylinder, when positioning sleeve 2 and supporter 1 After being connected according to " 2 axis of positioning sleeve is identical as arcwall face opening direction (as shown in Fig. 3, Fig. 5, Fig. 7 and Figure 10) " this requirement, The telescopic end of power source 4 can be inserted into the endoporus of positioning sleeve 2, both realized between supporter 1 and power source 4 in this way It is fixed, and can ensure that the telescopic direction of power source 4 is namely identical or opposite with the opening direction of arcwall face.In this situation Under, arcwall face is opening up, and the telescopic end of power source 4 is inserted into positioning sleeve 2, and rotary shaft 3 is placed in arcwall face, by dynamic Power source 4 it is upper and lower flexible, so that it may it is above-mentioned to rotation to realize to realize moving up and down for supporter 1 and arcwall face The support and lifting of shaft 3, as shown in Figure 12 and Figure 13.

For certain power sources, such as manipulator, although can move up and down, its finger may not be vertical , it may be possible to tilt or level, then Fig. 8 and Fig. 9 design convenient for manipulator finger be inserted into positioning sleeve 2 in, in turn Moving up and down for supporter 1 and arcwall face is realized by moving up and down for manipulator, to realize support and lift to rotary shaft 3 It rises.

For above-mentioned a plurality of types of power sources, the either hand of the flexible telescopic end of single direction or manipulator Refer to, tache motorice can be known as.

Further, a stress surface (or plane of constraint) vertical with 2 axis of positioning sleeve is set in 2 endoporus of positioning sleeve, Stress surface blocks the endoporus of positioning sleeve 2.After the tache motorice of power source 4 is inserted into positioning sleeve 2, the tache motorice of power source 4 Stress surface is resisted, relative to the cecum for resisting 2 endoporus of positioning sleeve or end (both may be uneven) is blocked, resists stress surface The force area that power source 4 can then be added is also beneficial to positioning sleeve 2 during being further maintained at the support of rotary shaft 3 and being lifted Stablizing relatively between power source 4, and then it is maintained at sliding bearing rotary shaft support during the support of rotary shaft 3 and lifting Stablizing relatively between lifting apparatus and power source 4.

Further, the positioning sleeve 2 is provided with the second fixed mechanism, and second fixed mechanism is described fixed for that will enter 4 tache motorice of power source in position set 2 is fixed with positioning sleeve 2.Such as Figure 14 is exactly on the basis of Fig. 5, in positioning sleeve 2 Two screw holes are opened up on side, screw hole is vertical with 2 axis of positioning sleeve and is connected to 2 endoporus of positioning sleeve.4 tache motorice of power source is inserted After entering in positioning sleeve 2, bolt 5 is screwed into screw hole and then holds out against the tache motorice of power source 4, is conducive to further be maintained at rotary shaft Stablizing relatively between positioning sleeve 2 and power source 4 during 3 supports and lifting, and then be maintained at the support of rotary shaft 3 and be lifted Stablizing relatively between sliding bearing rotary shaft support lifting apparatus and power source 4 in journey.

Positioning sleeve in Fig. 3 to Figure 11 can open up screw hole, and the second fixed mechanism can also use other suitable shapes Formula.Such as the pin hole vertical with 2 axis of positioning sleeve is opened up in the side of positioning sleeve 2, pin hole is connected to 2 endoporus of positioning sleeve, Huo Zheye Positioning sleeve 2, and the correspondence mechanism such as the hole that the setting of the tache motorice of power source 4 is inserted into for axis pin or ring can be run through.As general After 4 tache motorice of power source is inserted into positioning sleeve 2, axis pin is inserted by pin hole in the correspondence mechanism of the tache motorice of power source 4, The effect further fixed may be implemented.

Further, flexible or elastomeric element, such as rubber strip are set on the arcwall face.In order to which these flexibilities are arranged Or elastomeric element, suitable Cao Deng mechanisms can be opened up on arcwall face, it either can also be direct by flexible or elastomeric element It is bonded on arcwall face.Buffering and anti-skidding effect on the one hand can be provided by flexible or elastomeric element, improves rotary shaft 3 Security and stability during support and lifting, on the other hand can also rise between 3 surface of arcwall face and rotary shaft of supporter 1 To certain buffer action, the damage during reducing the support of rotary shaft 3 and being lifted to 3 surface of rotary shaft.

Plain bearing bush gap measuring apparatus in present embodiment further includes displacement measuring device, institute's displacement measurement Device is used to measure the variable quantity of the raising height and rotating shaft bearing case 6 of rotary shaft 3 on lifting direction.

When carrying out plain bearing bush clearance measurement using the plain bearing bush gap measuring apparatus, sliding bearing rotation Axis supports lifting apparatus to be arranged two sets or two sets or more, on the one hand supports lifting apparatus to press by two sets of sliding bearing rotary shafts The support for forming safety and steady to the rotary shaft 3 of 6 both sides of bearing housing where bearing shell to be measured respectively according to supporting way above-mentioned is made With also facilitating and carry out the upper ball cover of the sliding bearing bearing housing 7 except bearing housing 6 where bearing shell to be measured and bearing shell Quickly removal, and rotary shaft 3 can be kept not move up and down or slide in removal process, as shown in figure 15.On the other hand Above-mentioned sliding bearing rotary shaft is respectively provided with to the rotary shaft 3 of 6 both sides of bearing housing where bearing shell to be measured and supports lifting apparatus, The lifting that safety and steady can be respectively formed to the rotary shaft 3 of 6 both sides of bearing housing where bearing shell to be measured acts on, and is conducive to keep The steady change and accuracy of H1 and H2 avoids the two from acutely changing, and is conducive to bearing where keeping bearing shell to be measured The rotary shaft 3 of 6 both sides of case synchronizes lifting.Particularly, according to controllable devices such as digital liquid cylinder pressure or manipulators as dynamic Power source 4 can be further ensured that 6 liang of bearing housing where bearing shell to be measured since it moves up and down distance and speed is precisely controllable The rotary shaft 3 of side, which synchronizes, is lifted identical height, and accuracy is high.And by the measurement of displacement measuring device, it is more advantageous to accurate control The variable quantity of the raising height and speed and bearing housing 6 of rotary shaft 3 processed keeps bearing shell place to be measured axis to be more advantageous to The rotary shaft 3 for holding 6 both sides of case synchronizes lifting.By the synchronous lifting of the rotary shaft 3 of 6 both sides of bearing housing, can prevent to be measured 3 run-off the straight of rotary shaft of 6 both sides of bearing housing where bearing shell.Displacement measuring device and above-mentioned sliding bearing rotary shaft are supported Lifting apparatus matches, the lifting effect of the safety and stability that the latter is provided but also rotary shaft 3 and bearing housing 6 displacement measurement It is more accurate with controlling.

Further, as shown in figure 15, displacement measuring device selects dial gauge 9.The quantity of dial gauge 9 is three, rotary shaft 3 Support one dial gauge 9 of each setting above the position of lifting apparatus support and lifting (can set by two sliding bearing rotary shafts Corresponding dial framework is set to install dial gauge 9, such as dial framework may be mounted in ground or other fixing devices), for observing Two lift axis height H1, H2.A dial gauge 9 is arranged above the upper cover 8 of bearing housing 6 where bearing shell to be measured (can be arranged Corresponding dial framework installs dial gauge 9, such as dial framework may be mounted in ground or other fixing devices), for observing axis Hold variable quantity of the upper cover 8 of case 6 on lifting direction, i.e., variable quantity H3 of the bearing shell to be measured on lifting direction.

It is measured easy to operate, measured accurate using dial gauge 9.During lifting axis, by observation for measuring lift The reading of two dial gauges 9 of axis height is conducive to accurately control the change of the raising height and speed and bearing housing 6 of rotary shaft 3 Change amount keeps the rotary shaft 3 of bearing shell place to be measured 6 both sides of bearing housing to synchronize lifting, prevents axis to be measured to be more advantageous to 3 run-off the straight of rotary shaft of 6 both sides of bearing housing where watt.

During lifting axis, accomplish immediately to stop after the dial gauge 9 in the upper cover 8 of bearing housing 6 reads rigid change as possible Only lift axis.As previously mentioned, according to controllable devices such as digital liquid cylinder pressure or manipulators as power source 4, due to above and below it Displacement distance is precisely controllable, after the rotary shaft 3 of 6 both sides of bearing housing where capable of ensureing bearing shell to be measured synchronizes the identical height of lifting It is automatically stopped lift axis.For the power source 4 of this controllable distance and speed, by the way that its auto lifting lift is arranged from can be as possible Reduce the variation that the dial gauge 9 when it is automatically stopped lift axis in the upper cover 8 of bearing housing 6 is read.

It supports lifting apparatus to be supported and be lifted rotary shaft 3 by above-mentioned sliding bearing rotary shaft, passes through the cunning Dynamic bearing bearing shell measuring device can also measure rising height, so as to finally be accurately obtained bush gap measurement side Three height values needed for method so as to realize above-mentioned plain bearing bush measurement method, and are conducive to improve bearing shell The accuracy of clearance measurement, and to measure and can more quickly carry out, there is height application value and promotional value.

Above-mentioned sliding bearing rotary shaft support lifting apparatus is measured in addition to can be used for bush gap, can also be according to need It to be used in other working scenes for sliding bearing.

Claims (6)

1. a kind of plain bearing bush gap measuring apparatus, it is characterised in that：Lifting apparatus is supported including sliding bearing rotary shaft And displacement measuring device, the sliding bearing rotary shaft support lifting apparatus includes supporter, and the supporter, which has, to be used for The arcwall face of accommodating rotary shaft；The first fixed mechanism is provided on the supporter, first fixed mechanism is used for will be described It is fixed between supporter and the power source that effect of lifting is provided；Institute's displacement measurement device is for measuring lifting for rotary shaft The variable quantity of height and bearing shell on lifting direction.

2. plain bearing bush gap measuring apparatus according to claim 1, it is characterised in that：First fixed mechanism For positioning sleeve, one end of the positioning sleeve is connect with the supporter, and the endoporus of the positioning sleeve end be cecum or by All or part of to block, the positioning sleeve is used to entangle the tache motorice of the power source.

3. plain bearing bush gap measuring apparatus according to claim 2, it is characterised in that：The positioning sleeve endoporus list Solely it is provided with stress surface.

4. plain bearing bush gap measuring apparatus according to claim 2 or 3, it is characterised in that：The positioning is arranged It is equipped with the second fixed mechanism, second fixed mechanism will be for that will enter power source tache motorice and positioning sleeve in the positioning sleeve It is fixed.

5. plain bearing bush gap measuring apparatus according to any one of claim 1 to 3, it is characterised in that：It is described Flexible or elastomeric element is set on arcwall face.

6. plain bearing bush gap measuring apparatus according to any one of claim 1 to 3, it is characterised in that：It is described Displacement measuring device is dial gauge.