CN203893790U - Gap measuring device and axial gap measuring device of pneumatic pump - Google Patents
Gap measuring device and axial gap measuring device of pneumatic pump Download PDFInfo
- Publication number
- CN203893790U CN203893790U CN201420278921.XU CN201420278921U CN203893790U CN 203893790 U CN203893790 U CN 203893790U CN 201420278921 U CN201420278921 U CN 201420278921U CN 203893790 U CN203893790 U CN 203893790U
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- Prior art keywords
- dial gauge
- measuring
- sounding rod
- gap
- gap measuring
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- Expired - Lifetime
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- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a gap measuring device. The gap measuring device comprises a measuring rod, a measuring cylinder, a dial gauge measuring point rack, a dial gauge rack and a dial gauge, the measuring rod penetrates through the measuring cylinder and slides relative to the measuring cylinder, a first end of the measuring cylinder is provided with the dial gauge rack, a second end is provided with a positioning portion, the dial gauge is arranged on the dial gauge rack, the dial gauge comprises a pressure-measuring head, the dial gauge measuring point rack is arranged on the measuring rod and relative to the pressure-measuring head, and one end of the measuring rod is also provided with a measuring head. The utility model also provides an axial gap measuring device of a pneumatic pump, including the above gap measuring device. According to the gap measuring device and the axial gap measuring device of the pneumatic pump, the axial gap can be directly read from readings of the dial gauge, the efficiency and accuracy of axial gap measurement are improved, and the maintenance processes are greatly and conveniently simplified.
Description
Technical field
The utility model relates to a kind of measurement mechanism, the pneumatic pump axial gap measuring device that relates in particular to a kind of gap measuring apparatus and comprise this gap measuring apparatus.
Background technology
In the auxiliary feedwater pneumatic pump of nuclear power generating sets, balancing frame is positioned at the balance cylinder of steam-operating pump body, its rotor axial position is limited by balancing frame, thrust ring, cover of balancing chamber, the axial displacement of balancing frame in balance cylinder is limited by thrust ring and cover of balancing chamber, the end play that its axial displacement is pneumatic pump.
Auxiliary feedwater system (ASG:Auxiliary Feedwater) belongs to one of engineered safeguards features, its safety effect is when any one link of main feed system breaks down, as emergent means, to evaporator secondary side, supply water, make a loop maintain a low-temperature receiver.
When ASG pneumatic pump overhauls in overhaul, to measure the end play of steam-operating pump side hydraulic part balancing frame in balance cylinder, the specific purpose tool of existing measurement end play has the following disadvantages: first, the measurement of gap width can only record by clearance gauge or gauge block, measure consuming time more, and the mismachining tolerance due to instrument end face, the repeatability of measuring is poor, and each measurement data is difficult to unified; The second, sounding rod front end handle is shorter, lacks lubricated water rotor disk kinetic moment larger while isolating because of the steam-operating pump housing again, and shorter handle push-and-pull rotor is more difficult; The 3rd, tool materials are carbon steel, easily get rusty, and are difficult for maintenance.
Utility model content
In order to have improved efficiency and the accuracy that end play is measured, the numerical value of end play can directly be read easily from the reading of dial gauge, the utility model provides a kind of gap measuring apparatus, comprises sounding rod, measuring cylinder, dial gauge measuring point frame, indicator bracket, dial gauge; Described sounding rod slides through described measuring cylinder relatively described measuring cylinder, and described measuring cylinder first end is provided with described indicator bracket, and the second end is provided with location division; Described dial gauge is arranged on described indicator bracket, and described dial gauge comprises pressure gauge head, and described dial gauge measuring point frame is arranged on described sounding rod with respect to described pressure gauge head place; One end of described sounding rod is also provided with measuring head.
As further improvement of the utility model, described sounding rod is provided with dial gauge measuring point frame mounting groove, and described dial gauge measuring point frame is arranged in described dial gauge measuring point frame mounting groove.
As further improvement of the utility model, described sounding rod is provided with measurement step, described sounding rod slides in described measuring cylinder, when described pressure gauge head and described dial gauge measuring point bridge joint touch and reach the range end of described dial gauge, and described measurement step and described measuring cylinder butt.
As further improvement of the utility model, described measuring head is thread head, and described thread head is provided with relief groove near one end of described sounding rod.
As further improvement of the utility model, one end relative with described measuring head on described sounding rod is provided with handle.
As further improvement of the utility model, described measuring cylinder is provided with indicator bracket mounting groove, and described indicator bracket is arranged in described indicator bracket mounting groove.
As further improvement of the utility model, described dial gauge measuring point frame comprises: the first L shaped support body, is arranged on first of described the first L shaped support body bottom slotted eye is installed.
As further improvement of the utility model, described indicator bracket comprises: the second L shaped support body, be arranged on described the second L shaped support body top dial gauge mounting hole, be arranged on described the second L shaped support body top top wire hole, be arranged on second of described the second L shaped support body bottom slotted eye be installed.
As further improvement of the utility model, the top of described indicator bracket is provided with top wire hole.
A pneumatic pump axial gap measuring device, comprises gap measuring apparatus described above.
The beneficial effects of the utility model are: the utility model can directly be read end play from the reading of dial gauge, have improved efficiency and accuracy that end play is measured, greatly facilitate and have simplified maintenance craft.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gap measuring apparatus one embodiment;
Fig. 2 is the partial sectional view of the utility model gap measuring apparatus while measuring;
Fig. 3 is the structural representation of sounding rod one embodiment of the utility model gap measuring apparatus;
Fig. 4 is A portion details enlarged drawing in Fig. 3;
Fig. 5 is the structural representation of measuring cylinder one embodiment of the utility model gap measuring apparatus;
Fig. 6 is the structural representation of dial gauge measuring point frame one embodiment of the utility model gap measuring apparatus;
Fig. 7 is the structural representation of indicator bracket one embodiment of the utility model gap measuring apparatus.
In figure, each component names is as follows:
Sounding rod 10, measuring cylinder 20, dial gauge measuring point frame 30, indicator bracket 40, the first gib screw 50, the second gib screw 60, holding screw 70, dial gauge 80, press gauge head 81, steam chest 90, rotor 100, handle 11, measuring head 12, measure step 14, dial gauge measuring point frame mounting groove 15, the first threaded hole 16, relief groove 121, location division 21, cylindrical shell 22, indicator bracket mounting groove 23, the second threaded hole 24, , the first L shaped support body 31, first installs slotted eye 32, the first chamfering 33, the second L shaped support body 41, dial gauge mounting hole 42, top wire hole 43, second installs slotted eye 44, the second chamfering 45.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
The utility model provides a kind of gap measuring apparatus.As depicted in figs. 1 and 2, Fig. 1 is the structural representation of the utility model gap measuring apparatus one embodiment; Fig. 2 is the partial sectional view of the utility model gap measuring apparatus while measuring.The present embodiment gap measuring apparatus comprises sounding rod 10, measuring cylinder 20, dial gauge measuring point frame 30, indicator bracket 40, dial gauge 80; Sounding rod 10 slides through measuring cylinder 20 relative measurement cylinder 20, and measuring cylinder 20 first ends are provided with indicator bracket 40, the second ends and are provided with location division 21; Dial gauge 80 is arranged on indicator bracket 40, and dial gauge 80 comprises and presses gauge head 81, dial gauge measuring point frame 30 to be arranged on sounding rod 10 with respect to pressing gauge head 81 places; One end of sounding rod 10 is also provided with measuring head 12.
As shown in Fig. 1 and Fig. 2, first the gap measuring apparatus of the present embodiment will be removed steam chest 90 lateral balance pipes in use, the location division of measuring cylinder 20 21 ends are installed to steam chest 90 balance pipe flanges, and as preferably, location division 21 can be and the adaptive flange being connected of steam chest 90 balance pipe flanges.Afterwards, the measuring head of sounding rod 10 12 ends worn in measuring cylinder 20 and be connected with rotor shown in Fig. 2 100; Dial gauge measuring point frame 30 is installed on sounding rod 10, adjusts sounding rod 10 angles and make indicator bracket 40 and dial gauge measuring point frame 30 in same direction, dial gauge measuring point frame 30 is arranged on sounding rod 10 with respect to pressing gauge head 81 places; Indicator bracket 40 is installed in measuring cylinder 20, dial gauge 80 is mounted to indicator bracket 40, adjust the decrement that dial gauge 80 is pressed gauge head 81.
In use procedure, first with hand, infer forward gauge rod 10, at this moment the balancing frame of pneumatic pump contacts with cover of balancing chamber, the dial plate of now adjusting dial gauge 80 makes indicator zero adjustment, then with hand, pull back sounding rod 10, at this moment the balancing frame of pneumatic pump contacts with the thrust ring in left side shown in its Fig. 2, and records dial gauge reading, and this reading is the end play of pneumatic pump balancing frame in balance cylinder.Or first, to steam chest 90 thruster sounding rods 10, now balancing frame contacts with cover of balancing chamber, records the now reading of dial gauge 80; Then to drawing sounding rod 10 away from steam chest 90 directions, now balancing frame contacts with thrust ring, records now dial gauge 80 readings, and the difference of dial gauge 80 twice reading is the end play of pneumatic pump balancing frame.
The gap measuring apparatus of the present embodiment can directly be read end play from the reading of dial gauge, has improved efficiency and accuracy that end play is measured, greatly facilitates and has simplified maintenance craft.As preferably, the material of the utility model gap measuring apparatus can be stainless steel, is difficult for getting rusty, and is convenient to maintenance.Can directly from the reading of dial gauge, read end play the present embodiment, sounding rod 10 is Split type structure with dial gauge measuring point support 30, while being convenient to preserve, taking apart and deposits.Measuring cylinder 20 is Split type structure with indicator bracket 40, detachable, is convenient to processing, is convenient to deposit.
As shown in Fig. 3, Fig. 4, Fig. 6, Fig. 3 is the structural representation of sounding rod one embodiment of the utility model gap measuring apparatus; Fig. 4 is A portion details enlarged drawing in Fig. 3; Fig. 6 is the structural representation of dial gauge measuring point frame one embodiment of the utility model gap measuring apparatus.Further, dial gauge measuring point frame 30 comprises: the first L shaped support body 31, is arranged on first of the first L shaped support body 31 bottoms slotted eye 32 is installed.Sounding rod 10 is provided with dial gauge measuring point frame mounting groove 15, and dial gauge measuring point frame 30 is arranged in dial gauge measuring point frame mounting groove 15.First of dial gauge measuring point frame 30 is installed slotted eye 32 ends and is installed in the dial gauge measuring point frame mounting groove 15 of sounding rod 10, and by the first gib screw 50 and the first installation slotted eye 32, dial gauge measuring point frame 30 is fixed on sounding rod 10, adjust sounding rod 10 angles and make indicator bracket 40 and dial gauge measuring point frame 30 in same direction.
Further, as shown in Figure 1 to Figure 3, sounding rod 10 is provided with measures step 14, and sounding rod 10, in the interior slip of measuring cylinder 20, when pressing gauge head 81 contact with dial gauge measuring point frame 30 and reach the range end of dial gauge 80, is measured step 14 and measuring cylinder 20 butts.When pressing the measurement range of gauge head 81 to arrive the range end of dial gauge 80, utilize the butt of measuring step 14 and measuring cylinder 20, can protect dial gauge 80, in order to avoid measurement range no to scale infringement dial gauge 80.
Measuring head 12 is thread head, during application, thread head is installed on the rotor 100 of steam chest 90 to be measured, also be, the measuring head of sounding rod 10 12 ends are worn in measuring cylinder 20 and carefully screw in the threaded hole of rotor 100 front ends, thread head is provided with relief groove 121 near one end of sounding rod 10, while being convenient to produce, processes.One end relative with measuring head 12 on sounding rod 10 is provided with handle 11, convenient gripping when measuring.As preferably, handle 11 is T-handle, is easy to push-and-pull.The first L shaped support body 31 bottom surfaces of dial gauge measuring point frame 30 are processed with chamfering and interfere preventing on the face matching with the first installation slotted eye 32.On sounding rod 10, the dial gauge measuring point frame mounting groove 15 of processing is strip, than the long 10mm of the installed surface of dial gauge measuring point frame 30 (i.e. the first L shaped support body 31 bottom surfaces), is convenient to adjust the decrement of dial gauge 80 table bars.
As shown in Fig. 5 and Fig. 7, Fig. 5 is the structural representation of measuring cylinder one embodiment of the utility model gap measuring apparatus; Fig. 7 is the structural representation of indicator bracket one embodiment of the utility model gap measuring apparatus.Indicator bracket 40 comprises: the second L shaped support body 41, be arranged on the second L shaped support body 41 tops dial gauge mounting hole 42, be arranged on the second L shaped support body 41 tops top wire hole 43, be arranged on second of the second L shaped support body 41 bottoms slotted eye 44 be installed.By holding screw 70, dial gauge 80 is fixed in top wire hole 43, facilitates the installation of dial gauge.Measuring cylinder 20 first ends are provided with indicator bracket mounting groove 23, and the installation slotted eye 44 of indicator bracket 40 is fixed in indicator bracket mounting groove 23 by the second gib screw 60.
The second L shaped support body 41 bottom surfaces of indicator bracket 40 are processed with chamfering and interfere preventing on the face matching with the second installation slotted eye 44.The mounting groove of processing in measuring cylinder 20 (second slotted eye 44 being installed) is strip, than the long 10mm of the installed surface of indicator bracket 40 (i.e. the second L shaped support body 41 bottom surfaces), is convenient to adjust the decrement of dial gauge 80 table bars.
The utility model also provides a kind of pneumatic pump axial gap measuring device, and it comprises above-mentioned gap measuring apparatus.The present embodiment pneumatic pump axial gap measuring device is the concrete application of above-mentioned gap measuring apparatus on pneumatic pump, the present embodiment pneumatic pump axial gap measuring device can be used for measuring the measurement of the gap length of other types, utilize dial gauge to measure, measuring cylinder and sounding rod position, the length obtaining by measuring cylinder and sounding rod is read by dial gauge, improve precision and work efficiency.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a gap measuring apparatus, is characterized in that: comprise sounding rod (10), measuring cylinder (20), dial gauge measuring point frame (30), indicator bracket (40), dial gauge (80); Described sounding rod (10) slides through described measuring cylinder (20) relatively described measuring cylinder (20), and described measuring cylinder (20) first end is provided with described indicator bracket (40), and the second end is provided with location division (21); It is upper that described dial gauge (80) is arranged on described indicator bracket (40), and described dial gauge (80) comprises and presses gauge head (81), described dial gauge measuring point frame (30) to be arranged on that described sounding rod (10) is upper to be located with respect to described pressure gauge head (81); One end of described sounding rod (10) is also provided with measuring head (12).
2. gap measuring apparatus according to claim 1, is characterized in that: described sounding rod (10) is provided with dial gauge measuring point frame mounting groove (15), and described dial gauge measuring point frame (30) is arranged in described dial gauge measuring point frame mounting groove (15).
3. gap measuring apparatus according to claim 1, it is characterized in that: described sounding rod (10) is provided with measures step (14), described sounding rod (10) slides in described measuring cylinder (20), when described pressure gauge head (81) contacts with described dial gauge measuring point frame (30) and reaches the range end of described dial gauge (80), described measurement step (14) and described measuring cylinder (20) butt.
4. gap measuring apparatus according to claim 1, is characterized in that: described measuring head (12) is thread head, and described thread head is provided with relief groove (121) near one end of described sounding rod (10).
5. gap measuring apparatus according to claim 1, is characterized in that: the upper one end relative with described measuring head (12) of described sounding rod (10) is provided with handle (11).
6. gap measuring apparatus according to claim 1, is characterized in that: described measuring cylinder (20) is provided with indicator bracket mounting groove (23), and described indicator bracket (40) is arranged in described indicator bracket mounting groove (23).
7. gap measuring apparatus according to claim 1, is characterized in that: described dial gauge measuring point frame (30) comprising: the first L shaped support body (31), is arranged on first of described the first L shaped support body (31) bottom slotted eye (32) is installed.
8. gap measuring apparatus according to claim 1, is characterized in that: described indicator bracket (40) comprising: the second L shaped support body (41), be arranged on described the second L shaped support body (41) top dial gauge mounting hole (42), be arranged on described the second L shaped support body (41) top top wire hole (43), be arranged on second of described the second L shaped support body (41) bottom slotted eye (44) be installed.
9. gap measuring apparatus according to claim 1, is characterized in that: the top of described indicator bracket (40) is provided with top wire hole (43).
10. a pneumatic pump axial gap measuring device, is characterized in that: comprise the gap measuring apparatus described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278921.XU CN203893790U (en) | 2014-05-28 | 2014-05-28 | Gap measuring device and axial gap measuring device of pneumatic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278921.XU CN203893790U (en) | 2014-05-28 | 2014-05-28 | Gap measuring device and axial gap measuring device of pneumatic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893790U true CN203893790U (en) | 2014-10-22 |
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ID=51720184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420278921.XU Expired - Lifetime CN203893790U (en) | 2014-05-28 | 2014-05-28 | Gap measuring device and axial gap measuring device of pneumatic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893790U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390552A (en) * | 2014-11-26 | 2015-03-04 | 无锡阳工机械制造有限公司 | Positioning block calibration device |
| CN109387129A (en) * | 2017-08-04 | 2019-02-26 | 中车大同电力机车有限公司 | Spring-loaded and draw-bar seat detection device |
| CN110164570A (en) * | 2019-04-30 | 2019-08-23 | 中广核核电运营有限公司 | Main pump No.1 sealing low pressure difference runs off-line test method and system |
| CN111805462A (en) * | 2020-07-17 | 2020-10-23 | 福建福清核电有限公司 | Pneumatic auxiliary water feed pump mechanical flyweight adjusting tool and method |
| CN114215735A (en) * | 2021-12-14 | 2022-03-22 | 江苏核电有限公司 | Complete tool for regulating rotating speed of steam-driven pump of nuclear power station |
-
2014
- 2014-05-28 CN CN201420278921.XU patent/CN203893790U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390552A (en) * | 2014-11-26 | 2015-03-04 | 无锡阳工机械制造有限公司 | Positioning block calibration device |
| CN109387129A (en) * | 2017-08-04 | 2019-02-26 | 中车大同电力机车有限公司 | Spring-loaded and draw-bar seat detection device |
| CN110164570A (en) * | 2019-04-30 | 2019-08-23 | 中广核核电运营有限公司 | Main pump No.1 sealing low pressure difference runs off-line test method and system |
| CN110164570B (en) * | 2019-04-30 | 2020-10-13 | 中广核核电运营有限公司 | Main pump first sealing low differential pressure operation offline test method and system |
| CN111805462A (en) * | 2020-07-17 | 2020-10-23 | 福建福清核电有限公司 | Pneumatic auxiliary water feed pump mechanical flyweight adjusting tool and method |
| CN111805462B (en) * | 2020-07-17 | 2024-04-09 | 福建福清核电有限公司 | Mechanical flyweight adjusting tool and method for pneumatic auxiliary water supply pump |
| CN114215735A (en) * | 2021-12-14 | 2022-03-22 | 江苏核电有限公司 | Complete tool for regulating rotating speed of steam-driven pump of nuclear power station |
| CN114215735B (en) * | 2021-12-14 | 2024-05-10 | 江苏核电有限公司 | Complete tool for adjusting rotating speed of pneumatic pump of nuclear power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |