CN110375619A - A kind of small shaft clearance measuring device - Google Patents
A kind of small shaft clearance measuring device Download PDFInfo
- Publication number
- CN110375619A CN110375619A CN201910812629.9A CN201910812629A CN110375619A CN 110375619 A CN110375619 A CN 110375619A CN 201910812629 A CN201910812629 A CN 201910812629A CN 110375619 A CN110375619 A CN 110375619A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- measuring device
- gauge stand
- small shaft
- shaft clearance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of small shaft clearance measuring device, including pedestal, the upper end inner bevel of pedestal forms concave station, extends outward to form pedestal boss in the middle part of pedestal, the upper surface of pedestal boss is recessed forms positioning groove downwards；The lower end of the pedestal connects gauge stand, and dial gauge is installed in the lower end of gauge stand, and the upper end of dial gauge is contacted by measuring rod with small axis.The present invention can measure small shaft end portion to the distance of rotor bottom boss, can quickly it be judged by the distance, whether small axis is installed in place or transports situations such as whether causing small bending shaft in damping installation process, practical Y size caused by avoiding small shaft clearance unqualified or the underproof situation in the gap X guarantee that the assembling quality of machine and safe operation require.The configuration of the present invention is simple, easy to use, effect is good, has broad application prospects.
Description
Technical field
The present invention relates to high-speed rotating machine mounting technology field, specifically a kind of small shaft end portion of measurement is convex to rotor bottom
The device of the distance of platform.
Background technique
Small axis need to be installed in rotor shaft hatch, to support rotor weight when operation.Since the installation feelings of small axis can not be estimated
Condition, easily there is a situation where small axis could not fully fit into rotor shaft hatch.Meanwhile in machine transportational process, it is special to need to install
Transport damper.One boss is arranged at the damper top, in installation process or transportational process, easily causes the feelings of small bending shaft
Condition.
Y size and the gap X are the critical sizes in high-speed rotating machine assembly, and small axis is not mounted to position or bending, by shadow
The axial dimension chain of rotating machinery is rung, it cannot be guaranteed that Y size and the gap X, meanwhile, it easily damages damper shaft nest, influence small axis
End surface roughness.Therefore, when installing formal damper, need to detect small shaft clearance, with guarantee small axis be installed in place and
Whether it is bent.
Currently, in the prior art without the device of the above-mentioned size of detection.
Summary of the invention
It is an object of that present invention to provide a kind of devices of distance to rotor bottom boss that measures small shaft end portion, to detect height
Fast rotating machinery is installed whether rear small axis is installed in place or transports in damping installation process whether cause small bending shaft etc., keeps away
Exempt from small shaft clearance it is unqualified caused by practical Y size, the gap X be unqualified or damper installation process in damage axis nest, influence small
Shaft end portion surface roughness.
The present invention is realized according to following technical scheme:
A kind of small shaft clearance measuring device, including pedestal, the upper end inner bevel of pedestal form concave station, and the middle part of pedestal is to extension
It stretches to form pedestal boss, the upper surface of pedestal boss is recessed forms positioning groove downwards；The lower end of the pedestal connects gauge stand, table
Dial gauge is installed in the lower end of seat, and the upper end of dial gauge is contacted by measuring rod with small axis.
Further, the base interior is hollow and its middle and lower part is expanding forms the mounting groove installed for gauge stand.
Further, in the top insertion pedestal of the gauge stand, the upper end of gauge stand is cased with spring, the vacant end of spring and base
The slot bottom contact of the gauge stand mounting groove of seat.
Further, the gauge stand inner hollow and its underpart are embedded in dial gauge, and the head end contact measurement bar of dial gauge is surveyed
Gauge rod upper end runs through spring and penetrates the top of pedestal.
Further, the measuring rod penetrates one section of pedestal top and is equipped with plunger between base internal wall.
Further, the connecting rod sleeve of the dial gauge has a bushing, screw pass through gauge stand side wall and withstand on bushing to
Dial gauge is fixed in gauge stand.
Further, groove is formed on the gauge stand side wall being embedded in pedestal, pin is equipped in groove, and gauge stand is limited in base by pin
In seat.
Further, the concave station of the pedestal upper end is contacted with rotor bottom boss.
Further, the positioning groove formed on pedestal boss is contacted with machine damping hole.
Further, the rigidity of the spring is 620 N/m.
The present invention has the advantage that is with beneficial effect:
The present invention can measure small shaft end portion to the distance of rotor bottom boss, can quickly be judged by the distance, small axis is
It is no to be installed in place or transport situations such as whether causing small bending shaft in damping installation process, caused by avoiding small shaft clearance unqualified
The underproof situation of practical Y size or the gap X guarantees that the assembling quality of machine and safe operation require.The configuration of the present invention is simple,
Easy to use, effect is good, has broad application prospects.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the sectional view of pedestal and gauge stand of the present invention at pin.
Wherein, 1. bushing；2. pin；
3. measuring rod；4. plunger；
5. pedestal；6. spring；
7. gauge stand；8. screw；
9. dial gauge；10. pedestal boss；
11. concave station；12. positioning groove.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-2, a kind of small shaft clearance measuring device, including pedestal 5, the upper end inner bevel of pedestal 5 form recessed
Platform 11, concave station 11 are contacted with rotor bottom boss, jack up the effect of rotor and positioning.
The middle part of the pedestal 5 extends outward to form pedestal boss 10, and the upper surface of pedestal boss 10 is recessed to be formed downwards
Positioning groove 12, positioning groove 12 are contacted with machine damping hole, position rotor-position.The width of pedestal boss 10 of the present invention is set
For 60 mm, 5 process damaging rotor of installation pedestal is prevented.
The lower end of the pedestal 5 connects gauge stand 7, and dial gauge 9 is installed in the lower end of gauge stand 7, and the upper end of dial gauge 9 passes through measurement
Bar 3 is contacted with small axis.During measuring rod 3 moves up, by 9 registration of dial gauge read small axis to rotor bottom boss distance,
And then judge whether the distance is qualified.
5 inner hollow of pedestal and its middle and lower part of the invention be expanding to form the mounting groove installed for gauge stand 7, gauge stand 7 it is upper
Portion is embedded in the gauge stand mounting groove of pedestal 5, and the upper end of gauge stand 7 is cased with spring 6, and the vacant end of spring 6 and the gauge stand of pedestal 5 are installed
The slot bottom of slot contacts, and the effect of spring 6 is to make 7 homing of gauge stand.In addition, being formed on 7 side wall of gauge stand being embedded in pedestal 5 recessed
Slot, groove is interior to be equipped with pin 2, and gauge stand 7 is limited in pedestal 5 by pin 2, and gauge stand 7 is prevented to be detached from pedestal 5.
Preferably, the rigidity of spring 6 is set as 620 N/m, prevents measuring rod 3 from damaging small axis during above pushing away.
7 inner hollow of gauge stand and its underpart of the invention is embedded in dial gauge 9, and the connecting rod sleeve of dial gauge 9 has bushing 1, spiral shell
Nail 8 passes through 7 side wall of gauge stand and withstands on bushing 1 to which dial gauge 9 to be fixed in gauge stand 7.
The head end contact measurement bar 3 of dial gauge 9 of the invention, 3 upper end of measuring rod is through spring 6 and penetrates the upper of pedestal 5
Portion.The measuring rod 3 penetrates one section of 5 top of pedestal and is equipped with plunger 4 between 5 inner wall of pedestal.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of small shaft clearance measuring device, including pedestal (5), which is characterized in that the upper end inner bevel of pedestal (5) forms recessed
Platform (11) extends outward to form pedestal boss (10) in the middle part of pedestal (5), and the upper surface of pedestal boss (10) is recessed to be formed downwards
Positioning groove (12)；The lower end of the pedestal (5) connects gauge stand (7), and dial gauge (9) are installed in the lower end of gauge stand (7), dial gauge
(9) upper end is contacted by measuring rod (3) with small axis.
2. a kind of small shaft clearance measuring device as described in claim 1, which is characterized in that pedestal (5) inner hollow and
Its middle and lower part is expanding to form the mounting groove installed for gauge stand (7).
3. a kind of small shaft clearance measuring device as claimed in claim 2, which is characterized in that the top of the gauge stand (7) is embedded in
In pedestal (5), the upper end of gauge stand (7) is cased with spring (6), the slot bottom of the gauge stand mounting groove at the vacant end and pedestal (5) of spring (6)
Contact.
4. a kind of small shaft clearance measuring device as claimed in claim 1 or 3, which is characterized in that gauge stand (7) inner hollow
And spring (6) are run through simultaneously in its underpart insertion dial gauge (9), the head end contact measurement bar (3) of dial gauge (9), measuring rod (3) upper end
Penetrate the top of pedestal (5).
5. a kind of small shaft clearance measuring device as claimed in claim 4, which is characterized in that the measuring rod (3) penetrates pedestal
(5) one section of top is equipped with plunger (4) between pedestal (5) inner wall.
6. a kind of small shaft clearance measuring device as claimed in claim 1 or 5, which is characterized in that the connecting rod of the dial gauge (9)
It is cased with bushing (1) outside, screw (8) passes through gauge stand (7) side wall and withstands on bushing (1) to which dial gauge (9) is fixed on gauge stand
(7) in.
7. a kind of small shaft clearance measuring device as claimed in claim 3, which is characterized in that the gauge stand (7) in insertion pedestal (5)
Groove is formed on side wall, is equipped with pin (2) in groove, gauge stand (7) is limited in pedestal (5) by pin (2).
8. a kind of small shaft clearance measuring device as described in claim 1, which is characterized in that the concave station of pedestal (5) upper end
(11) it is contacted with rotor bottom boss.
9. a kind of small shaft clearance measuring device as described in claim 1, which is characterized in that is formed on pedestal boss (10) determines
Position groove (12) is contacted with machine damping hole.
10. a kind of small shaft clearance measuring device as claimed in claim 3, which is characterized in that the rigidity of the spring (6) is
620 N/m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812629.9A CN110375619A (en) | 2019-08-30 | 2019-08-30 | A kind of small shaft clearance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812629.9A CN110375619A (en) | 2019-08-30 | 2019-08-30 | A kind of small shaft clearance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110375619A true CN110375619A (en) | 2019-10-25 |
Family
ID=68261252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910812629.9A Pending CN110375619A (en) | 2019-08-30 | 2019-08-30 | A kind of small shaft clearance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110375619A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3910237C2 (en) * | 1989-03-30 | 1992-02-20 | Willi 6105 Ober-Ramstadt De Lantelme | |
| JPH07294241A (en) * | 1994-04-27 | 1995-11-10 | Toru Imanaga | Inner and outer length measuring apparatus |
| US6058767A (en) * | 1998-02-27 | 2000-05-09 | The Timken Company | Measurement of wheel bearing end play |
| CN200968840Y (en) * | 2006-11-08 | 2007-10-31 | 哈尔滨汽轮机厂有限责任公司 | Apparatus for measuring screw bolt elongation amount for steam turbine assembly measurement |
| CN102213110A (en) * | 2010-04-02 | 2011-10-12 | 河南第二火电建设公司 | Method and tool for measuring and trimming steam sealing radial gap of steam turbine set |
| CN202661016U (en) * | 2012-05-31 | 2013-01-09 | 烟台福尔精密机械有限公司 | Measure gauge for detecting distance from oil accommodating groove to large end face of needle valve body |
| CN203479215U (en) * | 2013-08-28 | 2014-03-12 | 常州西利合金工具有限公司 | Boss height measuring apparatus |
| CN203518911U (en) * | 2013-08-27 | 2014-04-02 | 常州华尔澜工具有限公司 | Aperture measurement device |
| CN203534448U (en) * | 2013-10-31 | 2014-04-09 | 烟台福尔精密机械有限公司 | A detecting gauge suitable for measuring the distance from a large end face to a shoulder of a fuel injector |
| CN208155210U (en) * | 2018-05-25 | 2018-11-27 | 绍兴市上虞春晖内燃机配件有限公司 | It is a kind of for measuring the cubing of tappet working face convexity |
-
2019
- 2019-08-30 CN CN201910812629.9A patent/CN110375619A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3910237C2 (en) * | 1989-03-30 | 1992-02-20 | Willi 6105 Ober-Ramstadt De Lantelme | |
| JPH07294241A (en) * | 1994-04-27 | 1995-11-10 | Toru Imanaga | Inner and outer length measuring apparatus |
| US6058767A (en) * | 1998-02-27 | 2000-05-09 | The Timken Company | Measurement of wheel bearing end play |
| CN200968840Y (en) * | 2006-11-08 | 2007-10-31 | 哈尔滨汽轮机厂有限责任公司 | Apparatus for measuring screw bolt elongation amount for steam turbine assembly measurement |
| CN102213110A (en) * | 2010-04-02 | 2011-10-12 | 河南第二火电建设公司 | Method and tool for measuring and trimming steam sealing radial gap of steam turbine set |
| CN202661016U (en) * | 2012-05-31 | 2013-01-09 | 烟台福尔精密机械有限公司 | Measure gauge for detecting distance from oil accommodating groove to large end face of needle valve body |
| CN203518911U (en) * | 2013-08-27 | 2014-04-02 | 常州华尔澜工具有限公司 | Aperture measurement device |
| CN203479215U (en) * | 2013-08-28 | 2014-03-12 | 常州西利合金工具有限公司 | Boss height measuring apparatus |
| CN203534448U (en) * | 2013-10-31 | 2014-04-09 | 烟台福尔精密机械有限公司 | A detecting gauge suitable for measuring the distance from a large end face to a shoulder of a fuel injector |
| CN208155210U (en) * | 2018-05-25 | 2018-11-27 | 绍兴市上虞春晖内燃机配件有限公司 | It is a kind of for measuring the cubing of tappet working face convexity |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |
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| RJ01 | Rejection of invention patent application after publication |