CN216717193U - Length measuring device for stator tensioning screw of hydraulic generator - Google Patents
Length measuring device for stator tensioning screw of hydraulic generator Download PDFInfo
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- CN216717193U CN216717193U CN202123019593.0U CN202123019593U CN216717193U CN 216717193 U CN216717193 U CN 216717193U CN 202123019593 U CN202123019593 U CN 202123019593U CN 216717193 U CN216717193 U CN 216717193U
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- positioning block
- upper positioning
- sleeve
- screw
- measuring device
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- 238000005259 measurement Methods 0.000 claims abstract description 9
- 241000755266 Kathetostoma giganteum Species 0.000 description 13
- 238000009434 installation Methods 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a length measuring device for a stator tensioning screw of a hydraulic generator, and relates to the technical field of length measuring devices. The device comprises a base rod, an upper positioning block and a lower positioning block, wherein one side of the upper positioning block is connected with a first sleeve, the first sleeve is vertically and fixedly arranged at the upper end of the base rod, the other side of the upper positioning block is provided with a through hole, and a depth micrometer which is parallel to the base rod penetrates through the through hole and is fixedly connected with the upper positioning block; lower locating piece one side is connected with the second sleeve, and the perpendicular fixed mounting of second sleeve is at the lower extreme of basic pole, and the crew cut round pin is installed to lower locating piece opposite side top surface, and the space between crew cut round pin and the micrometer of depth is used for installing the screw rod that awaits measuring, and during the measurement, the axis of the screw rod that awaits measuring and the axis of crew cut round pin and micrometer of depth all coincide. The length measuring device for the stator tensioning screw of the hydraulic generator provided by the utility model is narrower in width, can extend into the generator and is convenient for detecting the length of the screw in the generator.
Description
Technical Field
The utility model belongs to the technical field of length measuring devices, and particularly relates to a length measuring device for a stator tensioning screw of a hydraulic generator.
Background
Hydrogenerator stator core is piled up by the silicon steel sheet of 0.5mm thickness and is formed, and the silicon steel sheet is opened there is the through-hole with installation straining screw, relies on straining screw to compress tightly the silicon steel sheet on thousands of layers, and straining screw will produce the axial extension after screwing, for preventing that straining screw from producing plastic deformation, generally need judge through the elongation of measuring straining screw. The hydraulic generator has limited internal space, and the outside micrometer on the market has larger size at present, so that the hydraulic generator cannot be applied to the inside of the generator.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that an outside micrometer on the market is not suitable for detecting the length of a screw rod inside a generator, the utility model provides a device for measuring the length of a tensioning screw rod of a stator of a hydraulic generator, which is narrower in width, can extend into the generator and is convenient for detecting the length of the screw rod inside the generator.
The utility model provides the following technical scheme:
a length measuring device for a stator tensioning screw of a hydraulic generator comprises a base rod, an upper positioning block and a lower positioning block, wherein one side of the upper positioning block is connected with a first sleeve, the first sleeve is vertically and fixedly arranged at the upper end of the base rod, the other side of the upper positioning block is provided with a through hole, and a depth micrometer arranged in parallel with the base rod penetrates through the through hole and is fixedly connected with the upper positioning block; one side of the lower positioning block is connected with a second sleeve, the second sleeve is vertically and fixedly installed at the lower end of the basic rod, a flat-head pin is installed on the top surface of the other side of the lower positioning block, a space between the flat-head pin and the depth micrometer is used for installing a screw to be measured, and during measurement, the central axis of the screw to be measured is coincided with the central axes of the flat-head pin and the depth micrometer.
Preferably, the end part of the upper positioning block is provided with a fixing hole vertically communicated with the through hole, and the first screw extends into the fixing hole to lock the depth micrometer on the upper positioning block, so that the depth micrometer can be conveniently disassembled and assembled.
Preferably, the top surface of the upper positioning block is provided with a first guide surface convenient for mounting the depth micrometer.
Preferably, the top surface of the lower positioning block is provided with a second guide surface convenient for mounting a flat head pin.
The utility model has the beneficial effects that: the upper positioning block and the lower positioning block are respectively vertically arranged at the upper end and the lower end of the basic rod, so that the width of the measuring device is reduced, the measuring device can extend into the generator, and the length of a screw rod in the generator can be conveniently detected; meanwhile, a depth micrometer is installed on the upper positioning block, a flat-head pin is installed on the lower positioning block, the central axis of the measuring device is overlapped with the central axes of the depth micrometer and the flat-head pin, two-point measurement is carried out on the screw rod to be measured, and therefore measuring accuracy is guaranteed.
Drawings
FIG. 1 is a schematic view of the installation structure of the measuring device of the present invention;
FIG. 2 is a front view of the upper locating block of the present invention;
FIG. 3 is a top view of FIG. 2 of the present invention;
FIG. 4 is a front view of the lower locating block of the present invention;
fig. 5 is a top view of fig. 4 of the present invention.
Description of reference numerals:
1. a base rod; 2. an upper positioning block; 21. a through hole; 22. a fixing hole; 23. a first guide surface; 3. a first sleeve; 4. a second sleeve; 5. a lower positioning block; 51. a second guide surface; 6. a flat head pin; 7. a depth micrometer; 8. a first screw; 9. and (5) a screw to be tested.
Detailed Description
As shown in fig. 1, a length measuring device for a stator tension screw of a hydraulic generator comprises a base rod 1, an upper positioning block 2 and a lower positioning block 5.
As shown in fig. 2 and 3, the top surface of the upper positioning block 2 is provided with a first guide surface 23 for facilitating installation of the depth micrometer 7; go up 2 one sides of locating piece and be connected with first sleeve 3, the perpendicular fixed mounting of first sleeve 3 is in the upper end of basic pole 1, goes up the 2 other ends of locating piece and is equipped with through-hole 21 and with the fixed orifices 22 of the perpendicular intercommunication of through-hole 21, will with basic pole 1 parallel arrangement's degree of depth micrometer 7 from last to running through-hole 21 down, stretch into fixed orifices 22 with first screw 8 again in, screw up first screw 8 and lock degree of depth micrometer 7 on last locating piece 2.
As shown in fig. 4 and 5, the top surface of the lower positioning block 5 is provided with a second guide surface 51 for facilitating installation of the flat head pin 6; one side of the lower positioning block 5 is connected with a second sleeve 4, the second sleeve 4 is vertically and fixedly installed at the lower end of the base rod 1, a flat-head pin 6 is arranged at the other end of the lower positioning block 5, a space between the flat-head pin 6 and the depth micrometer 7 is used for installing a screw rod 9 to be measured, during measurement, the central axis of the screw rod 9 to be measured and the central axes of the flat-head pin 6 and the depth micrometer 7 are overlapped, two-point measurement is carried out on the screw rod 9 to be measured, and therefore the accuracy of measurement is guaranteed.
The working mode of the utility model is as follows: taking the distance between a measuring head of the depth micrometer 7 and the flat head pin 6 as a basic value; during measurement, firstly, the reading of the depth micrometer 7 is adjusted to a zero position; then, mounting the measuring device on the screw rod 9 to be measured, enabling the flat head pin 6 to be in contact with the bottom of the screw rod 9 to be measured, and keeping the screw rod 9 to be measured vertical to the top surface of the lower positioning block 5; then, adjusting the depth micrometer 7 to enable the measuring head to be in contact with the top of the screw 9 to be measured, and reading a measured value; the length of the screw 9 to be measured is obtained by subtracting the measured value from the basic value.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a hydro-generator stator stretching screw length measurement device which characterized in that: the device comprises a base rod (1), an upper positioning block (2) and a lower positioning block (5), wherein one side of the upper positioning block (2) is connected with a first sleeve (3), the first sleeve (3) is vertically and fixedly installed at the upper end of the base rod (1), a through hole (21) is formed in the other side of the upper positioning block (2), and a depth micrometer (7) which is parallel to the base rod (1) penetrates through the through hole (21) and is fixedly connected with the upper positioning block (2); lower locating piece (5) one side is connected with second sleeve (4), and the perpendicular fixed mounting of second sleeve (4) is at the lower extreme of basic pole (1), and flat head round pin (6) are installed to lower locating piece (5) opposite side top surface, and the space between flat head round pin (6) and depth micrometer (7) is used for installing screw rod (9) that awaits measuring, and during the measurement, the axis of screw rod (9) that awaits measuring all coincides with the axis of flat head round pin (6) and depth micrometer (7).
2. The hydro-generator stator tensioning screw length measuring device according to claim 1, characterized in that: the end part of the upper positioning block (2) is provided with a fixing hole (22) which is vertically communicated with the through hole (21), and the first screw (8) extends into the fixing hole (22) to lock the depth micrometer (7) on the upper positioning block (2).
3. The hydro-generator stator tensioning screw length measuring device according to claim 1 or 2, characterized in that: the top surface of the upper positioning block (2) is provided with a first guide surface (23) which is convenient for mounting the depth micrometer (7).
4. The hydro-generator stator tensioning screw length measuring device according to claim 1 or 2, characterized in that: and a second guide surface (51) convenient for mounting the flat head pin (6) is arranged on the top surface of the lower positioning block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123019593.0U CN216717193U (en) | 2021-12-03 | 2021-12-03 | Length measuring device for stator tensioning screw of hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123019593.0U CN216717193U (en) | 2021-12-03 | 2021-12-03 | Length measuring device for stator tensioning screw of hydraulic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216717193U true CN216717193U (en) | 2022-06-10 |
Family
ID=81881060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123019593.0U Active CN216717193U (en) | 2021-12-03 | 2021-12-03 | Length measuring device for stator tensioning screw of hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216717193U (en) |
-
2021
- 2021-12-03 CN CN202123019593.0U patent/CN216717193U/en active Active
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