CN208780103U - A kind of turbine-generator units measurements of form and position deviation device - Google Patents
A kind of turbine-generator units measurements of form and position deviation device Download PDFInfo
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- CN208780103U CN208780103U CN201821563643.7U CN201821563643U CN208780103U CN 208780103 U CN208780103 U CN 208780103U CN 201821563643 U CN201821563643 U CN 201821563643U CN 208780103 U CN208780103 U CN 208780103U
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- measuring staff
- measuring
- arm
- dial gauge
- turbine
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Abstract
The utility model discloses a kind of turbine-generator units 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 utility model belongs to element circularity and flatness field of measuring technique, in particular to a kind of turbine-generator units are used
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.
Utility model content
This practice is designed to provide a kind of turbine-generator units measurements of form and position deviation device；Institute in order to achieve the above objectives
It adopts the technical scheme that:
A kind of turbine-generator units measurements of form and position deviation device, including survey round frame, survey round frame include can circumferentially rotate and
The revolving support arm of linear movement, is equipped with dial gauge on revolving support arm, and the dial gauge includes dial plate and measuring staff, measuring staff
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 installed on measuring staff top
There is elevating mechanism；The elevating mechanism includes the support being fixed at the top of dial plate, and electromagnet, electromagnet position 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 the electromagnet is powered off
Magnetic force disappears, and measuring staff is in free state；
Measurement protection mechanism is installed on revolving support arm, the measurement protection mechanism includes being fixed on revolving support arm
On linking arm, protection straight-arm is installed on the connecting arm, is equipped with the item that is arranged along measuring staff centerline direction on the connecting arm
Shape positioning through hole, is equipped with positioning bolt on protection straight-arm, and positioning bolt passes through bar shaped positioning through hole and leads to bar shaped positioning
Hole is slidably connected, and is furnished with fastening nut on positioning bolt.
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, 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.
It has the beneficial effect that (1) installs rolling mechanism additional at measuring staff measuring head possessed by the utility model, is turning round in this way
During support arm rotates, even if encounter the raised or lesser step of partial discontinuous, measuring staff measuring head can be suitable
Benefit improves accuracy of measurement by the loosening for the fixed position of shaking or dial gauge for avoiding measuring staff；(2) rolling mechanism
Setting eliminate and lift manually originally, put down the operation of measuring staff, substantially increase measurement efficiency；(3) by revolving support
The setting that protection mechanism is measured on arm, has further functioned as protective effect to measuring staff 8, avoids and measures under extreme case more than hundred
Damage when dividing table range to measuring staff and dial gauge 7；(4) it need not just be climbed up and down by the setting survey crew of digital display type dial gauge
It climbs, reduces security risk, convenient reading saves the time, and digital display type dial gauge has automatic zero set function, can directly read
Take deviation；(5) overall structure is simple, at low cost, be it is a kind of dismounting easily based on revolution axle center the measurements of form and position deviation dress
It sets；(6) action can be cooperated to be promoted to measuring staff 11, to pass through transition by rolling mechanism and elevating mechanism
The all situations such as smooth step and bigger, protrusion step improve work effect to substantially reduce time of measuring
Rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model in embodiment 1；
Fig. 2 is the structural schematic diagram of the utility model in embodiment 2.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Specific embodiment 1:
As shown in Figure 1, a kind of turbine-generator units measurements of form and position deviation device, including surveying round frame (conventional equipment drawing
In be not shown), survey round frame include the revolving support arm that can be circumferentially rotated and move linearly, percentage is installed on revolving support arm
Table 10, the dial gauge 10 include 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.
When the utility model is used, fixing survey round frame first, the axle center of round frame is surveyed in adjustment, then determines a certain position
As reference dimension, dial gauge 10 is fixed on revolving support arm, protection straight-arm 4 is adjusted in linking arm 1 by positioning bolt 3
Fixation position, guarantee that the interval between conical 5 bottom of cambered surface tip and 11 bottom of measuring staff is less than the amount that measuring staff 8 moves upwards
Journey, to play a protective role to measuring staff 8；Then rotation revolution support arm, while being powered to electromagnet 6 and generating magnetic force, it relies on
Measuring staff 11 is lifted up by magnetic force, and when arrival is needed at measurement position, magnetic force disappears when electromagnet 6 being allowed to power off, and measuring staff 11 is in
Free state, the reading of dial gauge 7 are the deviation at measured position relative to reference dimension.And so on by institute it is in need
All measurement finishes the point of measurement.
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 rolling
Motivation structure includes braced frame 13, and the braced frame 13 is fixedly connected on 11 bottom of measuring staff, the company of rotation in braced frame 13
It is connected to bearing 12, the shaft centerline of bearing 12 and the perpendicular setting of 11 center line of measuring staff.It is set to improve bearing 12 with tested
Standby contact precision, the diameter of the bearing 12 are 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 above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, but these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (5)
1. a kind of turbine-generator units measurements of form and position deviation device, including round frame is surveyed, survey round frame is including that can circumferentially rotate and directly
The mobile revolving support arm of line, which is characterized in that dial gauge is installed on revolving support arm, the dial gauge include 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 on dial plate, are being surveyed
Bar top is equipped with elevating mechanism；The elevating mechanism includes the support being fixed at the top of dial plate, and electromagnetism is fixed in support
Iron, electromagnet are located at right above measuring staff top, generate magnetic force when the solenoid is energized, be lifted up measuring staff by magnetic force, when
Magnetic force disappears when electromagnet powers off, and measuring staff is in free state；
Measurement protection mechanism is installed on revolving support arm, the measurement protection mechanism includes being fixed on revolving support arm
Linking arm is equipped with protection straight-arm on the connecting arm, and it is fixed to be equipped with the bar shaped being arranged along measuring staff centerline direction on the connecting arm
Position through-hole, is equipped with positioning bolt on protection straight-arm, and positioning bolt passes through bar shaped positioning through hole and slides with bar shaped positioning through hole
Dynamic connection, is furnished with fastening nut on positioning bolt.
2. turbine-generator units according to claim 1 measurements of form and position deviation device, which is characterized in that in measuring staff bottom end
Rolling mechanism is installed；The rolling mechanism includes braced frame, and the braced frame is fixedly connected in measuring head, is being supported
Bearing, the shaft centerline of bearing and the perpendicular setting of measuring staff center line are rotatably connected in frame.
3. turbine-generator units according to claim 2 measurements of form and position deviation device, which is characterized in that the protection is straight
The front end of arm is conical cambered surface tip, and the diameter at conical cambered surface tip is less than the diameter of bearing.
4. turbine-generator units according to any one of claims 1 to 3 measurements of form and position deviation device, which is characterized in that
The dial gauge is digital display type dial gauge, and digital display type dial gauge is connected with external-connection displayer.
5. turbine-generator units according to claim 2 or 3 measurements of form and position deviation device, which is characterized in that the axis
The diameter held is not more than three times of measuring staff diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563643.7U CN208780103U (en) | 2018-09-26 | 2018-09-26 | A kind of turbine-generator units measurements of form and position deviation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563643.7U CN208780103U (en) | 2018-09-26 | 2018-09-26 | A kind of turbine-generator units measurements of form and position deviation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208780103U true CN208780103U (en) | 2019-04-23 |
Family
ID=66162399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821563643.7U Expired - Fee Related CN208780103U (en) | 2018-09-26 | 2018-09-26 | A kind of turbine-generator units measurements of form and position deviation device |
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| Country | Link |
|---|---|
| CN (1) | CN208780103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197664A (en) * | 2020-08-28 | 2021-01-08 | 国家电网有限公司 | Phase modifier buckled plate measuring tool |
-
2018
- 2018-09-26 CN CN201821563643.7U patent/CN208780103U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197664A (en) * | 2020-08-28 | 2021-01-08 | 国家电网有限公司 | Phase modifier buckled plate measuring tool |
| CN112197664B (en) * | 2020-08-28 | 2022-03-18 | 国家电网有限公司 | Phase modifier buckled plate measuring tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 Termination date: 20210926 |