CN109443123A - A kind of turbine-generator units electromagnetic type measurements of form and position deviation device - Google Patents
A kind of turbine-generator units electromagnetic type measurements of form and position deviation device Download PDFInfo
- Publication number
- CN109443123A CN109443123A CN201811118055.7A CN201811118055A CN109443123A CN 109443123 A CN109443123 A CN 109443123A CN 201811118055 A CN201811118055 A CN 201811118055A CN 109443123 A CN109443123 A CN 109443123A
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- measuring staff
- measuring
- turbine
- arm
- position deviation
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of turbine-generator units electromagnetic type measurements of form and position deviation devices, including surveying round frame, surveying round frame includes the revolving support arm that can be circumferentially rotated and move linearly, dial gauge is installed on revolving support arm, the dial gauge includes dial plate and measuring staff, and measuring staff bottom end is measuring head, and measuring staff top is stretched out at the top of dial plate, the displacement of measuring staff movement is shown on dial plate, is equipped with elevating mechanism on measuring staff top；The elevating mechanism includes the support being fixed at the top of dial plate, and electromagnet is fixed in support, and electromagnet is located at right above measuring staff top, magnetic force is generated when the solenoid is energized, measuring staff is lifted up by magnetic force, magnetic force disappears when the electromagnet is powered off, and measuring staff is in free state；Action can be cooperated to be promoted to measuring staff 11, to improve work efficiency by all situations such as the step of transitions smooth and bigger, protrusion step to substantially reduce time of measuring by rolling mechanism and elevating mechanism.
Description
Technical field
The invention belongs to element circularity and flatness field of measuring technique, in particular to a kind of turbine-generator units electromagnetism
Formula measurements of form and position deviation device.
Background technique
In Hydropower Plant transformation process, the measurement control of turbine-generator units plays installation quality very heavy
The effect wanted.The mechanical equipment improvement and installation adjusting stage, the Comparision for needing to measure is more, also needs to survey repeatedly when many
Amount, the amount of labour is big, precision controlling require it is high, such as the circularity of runner envelope, stator positioning bar circularity, rotor roundness, top cover circularity,
Boring port radius and end face plane degree, pushing refer to the measurement of flatness etc. above and below seat ring, and many measurement work time and effort consumings are right
Duration is affected.
Common measurement method is first to adjust the axle center for surveying round frame using round frame is surveyed, then determine a certain position as base
Object staff cun, then dial gauge is fixed on surveying round frame, reference dimension is set to the zero-bit of dial gauge, then pull the pointer of dial gauge,
It allowing pointer to retract, dial indicator head is made to leave measurement surface, round frame support arm is surveyed in revolution, after dial gauge reaches measurement designated position,
Pointer is unclamped, pointer contact measuring point carries out realization measurement, and the reading of dial gauge is tested position relative to reference dimension
Deviation.For example, the tooth support measurement of planeness of generator unit stator lower part, needs to refer to that position is surveyed to 504 pressures for one week
Amount, each pressure refer to it is upper to measure inside and outside two data, that is to say, that in the adjustment of tooth support, only once measure, it is necessary to survey
1008 data are measured, need ceaselessly to lift the measuring staff for putting dial gauge in measurement process.On the other hand do not connect since tested part has
Continuous property, the very big feature of quantity, so that the time-consuming effort of whole process, also will cause dial gauge displacement unless you give your whole attention to it and generate survey
Measure error.
Summary of the invention
This practice is designed to provide a kind of turbine-generator units electromagnetic type measurements of form and position deviation device；It is above-mentioned to reach
Purpose is adopted the technical scheme that:
A kind of turbine-generator units electromagnetic type measurements of form and position deviation device, including round frame is surveyed, surveying round frame includes that can circumferentially rotate
With the revolving support arm of linear movement, dial gauge is installed on revolving support arm, the dial gauge includes dial plate and measuring staff, is surveyed
Bar bottom end is measuring head, and measuring staff top is stretched out at the top of dial plate, and the displacement of measuring staff movement is shown on dial plate, is pacified on measuring staff top
Equipped with elevating mechanism；The elevating mechanism includes the support being fixed at the top of dial plate, and electromagnet, electromagnet are fixed in support
Right above measuring staff top, magnetic force is generated when the solenoid is energized, is lifted up measuring staff by magnetic force, when electromagnet powers off
When magnetic force disappear, measuring staff is in free state.
Preferably, rolling mechanism is installed in measuring staff bottom end；The rolling mechanism includes braced frame, the braced frame
It is fixedly connected in measuring head, bearing, shaft centerline and the measuring staff center line phase of bearing is rotatably connected in braced frame
It is vertically arranged.
Preferably, measurement protection mechanism is installed on revolving support arm, the measurement protection mechanism includes being fixed on back
Turn the linking arm on support arm, protection straight-arm is installed on the connecting arm, is equipped on the connecting arm along measuring staff centerline direction
The bar shaped positioning through hole of setting is equipped with positioning bolt on protection straight-arm, positioning bolt pass through bar shaped positioning through hole and with item
Shape positioning through hole is slidably connected, and is furnished with fastening nut on positioning bolt.
Preferably, the front end of the protection straight-arm is conical cambered surface tip, and the diameter at conical cambered surface tip is less than axis
The diameter held.
Preferably, the dial gauge is digital display type dial gauge, and digital display type dial gauge is connected with external-connection displayer.
Preferably, the diameter of the bearing is not more than three times of measuring staff diameter.
The advantageous effect of present invention is that: (1) rolling mechanism measuring staff measuring head at is installed, in this way in revolving support
During arm rotates, even if encounter the raised or lesser step of partial discontinuous, measuring staff measuring head can smoothly lead to
It crosses and avoids the shaking of measuring staff or the loosening of the fixed position of dial gauge, improve accuracy of measurement；(2) rolling mechanism is set
The operation for eliminating and lifting, put down originally measuring staff manually is set, measurement efficiency is substantially increased；(3) by revolving support arm
The setting for measuring protection mechanism, has further functioned as protective effect to measuring staff 8, and avoiding measurement under extreme case is more than dial gauge
To the damage of measuring staff and dial gauge 7 when range；(4) it need not just be climbed up and down by the setting survey crew of digital display type dial gauge,
Reduce security risk, convenient reading saves the time, and digital display type dial gauge has automatic zero set function, can directly read
Deviation；(5) overall structure is simple, at low cost, is a kind of convenient and fast measurements of form and position deviation device based on revolution axle center of dismounting；
(6) action can be cooperated to be promoted to measuring staff 11, with flat by transition by rolling mechanism and elevating mechanism
The all situations such as sliding step and bigger, protrusion step improve work effect to substantially reduce time of measuring
Rate.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention in embodiment 1；
Fig. 2 is structural schematic diagram of the invention in embodiment 2.
Specific embodiment
The present invention is further described with reference to the accompanying drawing.
Specific embodiment 1:
As shown in Figure 1, a kind of turbine-generator units electromagnetic type measurements of form and position deviation device, including surveying round frame (conventional equipment
It is not shown in the figure), surveying round frame includes the revolving support arm that can be circumferentially rotated and move linearly, and is equipped with hundred on revolving support arm
Divide table 10, the dial gauge 10 includes dial plate 9 and measuring staff 11, and 11 bottom end of measuring staff is measuring head, and 11 top of measuring staff is stretched out dial plate 9 and pushed up
Portion, the displacement that measuring staff 11 moves are shown on dial plate 9, are equipped with elevating mechanism on 11 top 7 of measuring staff；The elevating mechanism packet
The support 8 for being fixed on 9 top of dial plate is included, electromagnet 6 is fixed in support 8, electromagnet 6 is located at right above 11 top of measuring staff 7,
Magnetic force is generated when electromagnet 6 is powered, is lifted up measuring staff 11 by magnetic force, magnetic force disappears when electromagnet 6 powers off, measuring staff
11 are in free state.
It is also possible that being equipped with measurement protection mechanism on revolving support arm, the measurement protection mechanism includes being fixed on back
Turn the linking arm 1 on support arm, protection straight-arm 4 is installed on linking arm 1, is equipped on linking arm 4 along 11 center of measuring staff
The bar shaped positioning through hole 2 of line direction setting, is equipped with positioning bolt 3 on protection straight-arm 4, and positioning bolt 3 is positioned across bar shaped
It through-hole 2 and is slidably connected with bar shaped positioning through hole 2, is furnished with fastening nut on positioning bolt 3.
In order to improve protection 4 top of straight-arm and equipment under test contact precision, the front end of the protection straight-arm is conical arc
Face tip 5, conical cambered surface tip 5 are close with 11 bottom tip shape of measuring staff.
In the prior art when higher position measures data, generally requiring to climb carries out record data, and operation is very
Slowly but also there is security risk, therefore dial gauge 10 is changed to digital display type dial gauge, and digital display type dial gauge is connected with
External-connection displayer, in this way can be by measurement data real-time display in external-connection displayer by wired or wireless transmission method
On, substantially increase measurement efficiency.
In the use of the present invention, fixing survey round frame first, the axle center of round frame is surveyed in adjustment, then determines a certain position conduct
Dial gauge 10 is fixed on revolving support arm by reference dimension, adjusts protection the consolidating in linking arm 1 of straight-arm 4 by positioning bolt 3
Positioning is set, and guarantees that the interval between 5 bottom of conical cambered surface tip and 11 bottom of measuring staff is less than the range that measuring staff 8 moves upwards,
To play a protective role to measuring staff 8；Then rotation revolution support arm, while being powered to electromagnet 6 and generating magnetic force, by magnetic force
Measuring staff 11 is lifted up, when arrival is needed at measurement position, magnetic force disappears when electromagnet 6 being allowed to power off, and measuring staff 11 is in freely
State, the reading of dial gauge 7 are the deviation at measured position relative to reference dimension.And so on by institute's measurement in need
Point all measurement finish.
Specific embodiment 2:
As shown in Fig. 2, the difference is that, being equipped with rolling mechanism in 11 bottom end of measuring staff with specific embodiment 1；The roller press
Structure includes braced frame 13, and the braced frame 13 is fixedly connected on 11 bottom of measuring staff, is rotatably connected in braced frame 13
Bearing 12, the shaft centerline of bearing 12 and the perpendicular setting of 11 center line of measuring staff.It is connect to improve bearing 12 with equipment under test
Precision is touched, the diameter of the bearing 12 is not more than three times of 11 diameter of measuring staff.
Identical as specific embodiment 1 when in use, only when support arm is turned round in rotation, rolling mechanism and elevating mechanism can
With mutual cooperation action to be promoted to measuring staff 11, to pass through the platform of the step of transitions smooth and bigger protrusion
The all situations such as rank.
Have the advantages that (1) installs rolling mechanism additional at 11 measuring head of measuring staff compared with current measuring device, in this way
During the rotation of revolving support arm, even if encounter the raised or lesser step of partial discontinuous, 8 measuring head of measuring staff
It can pass through and avoid the shaking of measuring staff 11 or the loosening of the fixed position of dial gauge 10, improve accuracy of measurement；
(2) setting of rolling mechanism eliminates the operation for lifting, putting down measuring staff 11 manually originally, substantially increases measurement efficiency；(3) lead to
The setting for measuring protection mechanism on revolving support arm is crossed, protective effect has been further functioned as to measuring staff 11, has avoided extreme feelings
Damage when measurement is more than 10 range of dial gauge under condition to measuring staff 8 and dial gauge 10；(4) it is surveyed by the setting of digital display type dial gauge
Amount personnel need not just climb up and down, reduce security risk, and convenient reading saves the time, and digital display type dial gauge has automatically
Zeroing function can directly read deviation；(5) overall structure is simple, at low cost, is that a kind of dismounting is convenient and fast based on rotating shaft
The measurements of form and position deviation device of the heart；(6) action can be cooperated to measuring staff 11 by rolling mechanism and elevating mechanism
It is promoted, with by all situations such as the step of transitions smooth and bigger, protrusion step, to substantially reduce survey
The time is measured, is improved work efficiency.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
But these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of turbine-generator units electromagnetic type measurements of form and position deviation device, including round frame is surveyed, surveying round frame includes circumferentially turning
Dynamic and linear movement revolving support arm, which is characterized in that dial gauge is equipped on revolving support arm, the dial gauge includes
Dial plate and measuring staff, measuring staff bottom end are measuring head, and measuring staff top is stretched out at the top of dial plate, and the displacement of measuring staff movement is shown in dial plate
On, elevating mechanism is installed on measuring staff top；The elevating mechanism includes the support being fixed at the top of dial plate, fixed in support
There is electromagnet, electromagnet is located at right above measuring staff top, generates magnetic force when the solenoid is energized, mention measuring staff upwards by magnetic force
It rises, magnetic force disappears when the electromagnet is powered off, and measuring staff is in free state.
2. turbine-generator units according to claim 1 electromagnetic type measurements of form and position deviation device, which is characterized in that surveying
Bar bottom end is equipped with rolling mechanism；The rolling mechanism includes braced frame, and the braced frame is fixedly connected in measuring head,
Bearing, the shaft centerline of bearing and the perpendicular setting of measuring staff center line are rotatably connected in braced frame.
3. turbine-generator units according to claim 2 electromagnetic type measurements of form and position deviation device, which is characterized in that returning
Turning that measurement protection mechanism is installed on support arm, the measurement protection mechanism includes the linking arm being fixed on revolving support arm,
Protection straight-arm is installed on the connecting arm, is equipped with the bar shaped positioning through hole being arranged along measuring staff centerline direction on the connecting arm,
Positioning bolt is equipped on protection straight-arm, positioning bolt passes through bar shaped positioning through hole and is slidably connected with bar shaped positioning through hole,
It is furnished with fastening nut on positioning bolt.
4. turbine-generator units according to claim 3 electromagnetic type measurements of form and position deviation device, which is characterized in that described
The front end for protecting straight-arm is conical cambered surface tip, and the diameter at conical cambered surface tip is less than the diameter of bearing.
5. turbine-generator units according to any one of claims 1 to 4 electromagnetic type measurements of form and position deviation device, feature
It is, the dial gauge is digital display type dial gauge, and digital display type dial gauge is connected with external-connection displayer.
6. turbine-generator units according to claim 5 electromagnetic type measurements of form and position deviation device, which is characterized in that described
The diameter of bearing is not more than three times of measuring staff diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118055.7A CN109443123A (en) | 2018-09-26 | 2018-09-26 | A kind of turbine-generator units electromagnetic type measurements of form and position deviation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118055.7A CN109443123A (en) | 2018-09-26 | 2018-09-26 | A kind of turbine-generator units electromagnetic type measurements of form and position deviation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109443123A true CN109443123A (en) | 2019-03-08 |
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ID=65530786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118055.7A Pending CN109443123A (en) | 2018-09-26 | 2018-09-26 | A kind of turbine-generator units electromagnetic type measurements of form and position deviation device |
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| Country | Link |
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| CN (1) | CN109443123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770322A (en) * | 2022-05-23 | 2022-07-22 | 安徽省蚌埠闸工程管理处 | Split replacing method for runner chamber of vertical hydraulic turbine unit and measuring and polishing device for runner chamber |
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|---|---|---|---|---|
| CN2150524Y (en) * | 1993-03-22 | 1993-12-22 | 宋震野 | Measuring instrument for planeness tolerance |
| JP2005098837A (en) * | 2003-09-25 | 2005-04-14 | Kyoto Seimitsu Kogyo Kk | Concentricity measuring gauge |
| CN201378042Y (en) * | 2009-04-08 | 2010-01-06 | 万向钱潮股份有限公司 | Gauge for measuring coaxiality of spherical channel to spherical surface of bell housing |
| CN203550881U (en) * | 2013-10-22 | 2014-04-16 | 上海力施电力设备有限公司 | Device for measuring roundness of rotor of large-scale water turbine generator set |
| CN206420421U (en) * | 2016-11-28 | 2017-08-18 | 浙江洁美电子科技股份有限公司 | A kind of miniature reception hole depth measurement device |
| CN107167106A (en) * | 2017-07-10 | 2017-09-15 | 北京理工大学 | Sebific duct based on minimum two-multiply law withholds performance rating method and detection means |
| CN107167049A (en) * | 2017-05-26 | 2017-09-15 | 郑州大学 | A kind of crankshaft grinding processes on-position measure device |
| CN207515701U (en) * | 2017-11-29 | 2018-06-19 | 青岛元鼎热工环保有限公司 | A kind of measurement centrifugal casting shell straightness check tool |
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2018
- 2018-09-26 CN CN201811118055.7A patent/CN109443123A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150524Y (en) * | 1993-03-22 | 1993-12-22 | 宋震野 | Measuring instrument for planeness tolerance |
| JP2005098837A (en) * | 2003-09-25 | 2005-04-14 | Kyoto Seimitsu Kogyo Kk | Concentricity measuring gauge |
| CN201378042Y (en) * | 2009-04-08 | 2010-01-06 | 万向钱潮股份有限公司 | Gauge for measuring coaxiality of spherical channel to spherical surface of bell housing |
| CN203550881U (en) * | 2013-10-22 | 2014-04-16 | 上海力施电力设备有限公司 | Device for measuring roundness of rotor of large-scale water turbine generator set |
| CN206420421U (en) * | 2016-11-28 | 2017-08-18 | 浙江洁美电子科技股份有限公司 | A kind of miniature reception hole depth measurement device |
| CN107167049A (en) * | 2017-05-26 | 2017-09-15 | 郑州大学 | A kind of crankshaft grinding processes on-position measure device |
| CN107167106A (en) * | 2017-07-10 | 2017-09-15 | 北京理工大学 | Sebific duct based on minimum two-multiply law withholds performance rating method and detection means |
| CN207515701U (en) * | 2017-11-29 | 2018-06-19 | 青岛元鼎热工环保有限公司 | A kind of measurement centrifugal casting shell straightness check tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770322A (en) * | 2022-05-23 | 2022-07-22 | 安徽省蚌埠闸工程管理处 | Split replacing method for runner chamber of vertical hydraulic turbine unit and measuring and polishing device for runner chamber |
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Application publication date: 20190308 |
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| RJ01 | Rejection of invention patent application after publication |