CN212747647U - Vapor seal measuring device - Google Patents
Vapor seal measuring device Download PDFInfo
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- CN212747647U CN212747647U CN202021544804.5U CN202021544804U CN212747647U CN 212747647 U CN212747647 U CN 212747647U CN 202021544804 U CN202021544804 U CN 202021544804U CN 212747647 U CN212747647 U CN 212747647U
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- positioning
- positioning seat
- measuring device
- steering rod
- location portion
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Abstract
The utility model provides a vapor seal measuring device, include the positioning seat, and install the measurement element on the positioning seat, install first location portion, second location portion and third location portion on the positioning seat, first location portion, second location portion and third location portion are triangular distribution. For the depth gauge measuring mode among the prior art, adopt the utility model discloses a vapor seal measuring device, measurement element pass through positioning seat, first location portion, second location portion and third location portion and realize the location for measurement element's benchmark at every turn all keeps unanimous, thereby has improved measurement accuracy.
Description
Technical Field
The utility model relates to a vapor seal measuring device field especially relates to a vapor seal measuring device that measurement accuracy is higher.
Background
The upper half of the adjusting stage steam seal needs to participate in the process of finding the steam turbine stator when being assembled, the upper half of the adjusting stage steam seal is arranged on the upper half cylinder and is fastened through screws without a positioning piece, and a positioning pin needs to be arranged after the assembly and the finding are completed. In the prior art, the work of the first half of the adjustment-level steam seal in the process of finding points can only be roughly finished by depending on a depth gauge.
The precision of the method for finding the depth gauge is not high, and the main reasons are as follows: 1) the structure of the unit is compact, workers are inconvenient to enter the cylinder, and direct measurement is difficult to implement; 2) the depth gauge is measured in a multi-point measuring mode, the centering reference is a T-shaped arc groove, the accuracy is improved, only measuring points can be added, the efficiency is too low, and the unreliable error of few points is large; 3) the depth gauge is mainly in contact with the arc surface of the T-shaped arc groove only at one point when each measuring point is measured, the contact condition is poor, the depth gauge is easy to rotate relative to the arc surface when in measurement, and the like, so that the difference of measurement data of different operators is obvious, and the influence of human factors is large; and further, the measured point data can not be accurately consistent with the initially measured data during retesting, and the accuracy of the measured data is reduced. The measurement precision of the measurement mode in the prior art is only 0.10-0.15 mm.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a steam seal measuring device with higher measurement accuracy.
In order to solve the technical problem, the utility model provides a vapor seal measuring device, include the positioning seat and install the measurement element on the positioning seat, install first location portion, second location portion and third location portion on the positioning seat, first location portion, second location portion and third location portion are triangular distribution.
Preferably, the gland sealing measuring device further comprises an adjusting component, and the adjusting component is used for adjusting the first positioning part to move close to or far away from the second positioning part and the third positioning part.
Furthermore, the adjusting part comprises a sliding block and a screw rod in threaded connection with the sliding block, a sliding groove is formed in the positioning seat, the sliding block is located in the sliding groove, the screw rod is rotationally connected with the positioning seat, and the first positioning part is connected with the sliding block.
Preferably, the first positioning part comprises a first positioning shaft mounted on the positioning seat and a first roller mounted on the first positioning shaft; the second positioning part comprises a second positioning shaft arranged on the positioning seat and a second roller arranged on the second positioning shaft; the third positioning part comprises a third positioning shaft arranged on the positioning seat and a third roller arranged on the third positioning shaft.
Preferably, the measuring part comprises a bracket connected with the positioning seat and a dial indicator arranged on the bracket.
Furthermore, the bracket comprises a first steering rod with one end connected with the positioning seat, a second steering rod in pin joint with the first steering rod, and a clamp in ball hinge joint with one end of the second steering rod, and the dial indicator is clamped on the clamp.
Still further, the support still includes can adsorb the magnet on the positioning seat, first steering column with the magnet ball is articulated.
Still further, the support still includes the lock sleeve, the lock sleeve with connect the round pin axle threaded connection of first steering column and second steering column.
As above, the utility model discloses a vapor seal measuring device has following beneficial effect:
the utility model discloses in the use, place the notch department in the T type circular arc groove of last semi-cylinder with the positioning seat earlier, and first location portion supports with a inside wall in T type circular arc groove and supports, second location portion and third location portion support with another inside wall in T type circular arc groove and support, make the positioning seat remove along T type circular arc groove, therefore, the measuring part who installs on the positioning seat measures at every turn and all regards as the measuring benchmark with the concentric arc surface in T type circular arc groove, and the centre of a circle in T type circular arc groove is unanimous with the center of last semi-cylinder, thereby the vapor seal that measuring part surveyed is for the offset with the concentric arc surface in T type circular arc groove, also be for the offset at last semi-cylinder center. For the depth gauge measuring mode among the prior art, adopt the utility model discloses a vapor seal measuring device, measurement element pass through positioning seat, first location portion, second location portion and third location portion and realize the location for measurement element's benchmark at every turn all keeps unanimous, thereby has improved measurement accuracy.
Drawings
Fig. 1 is a schematic perspective view of a vapor seal measuring device according to an embodiment of the present invention;
fig. 2 is a schematic bottom view of a vapor seal measuring device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a vapor seal measuring device according to an embodiment of the present invention in an operating state.
Description of the reference numerals
1 positioning seat
110 baffle
101 chute
2 measuring part
210 support
211 first steering rod
212 second steering rod
213 Clamp
214 magnet
215 locking sleeve
220 dial gauge
3 first positioning part
310 first positioning shaft
320 first roller
4 second positioning part
410 second positioning shaft
420 second roller
5 third positioning part
510 third positioning shaft
520 third roller
6 upper half cylinder
7T-shaped arc groove
8 steam seal
9 adjusting part
910 slide block
920 screw mandrel
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve.
As shown in fig. 1-3, the utility model provides a vapor seal measuring device, including positioning seat 1 and install the measuring part 2 on positioning seat 1, install first location portion 3, second location portion 4 and third location portion 5 on positioning seat 1, first location portion 3, second location portion 4 and third location portion 5 are triangular distribution.
The utility model discloses in the use, place positioning seat 1 earlier in the notch department of the T type circular arc groove 7 of last semi-cylinder 6, and first location portion 3 supports with a lateral wall of T type circular arc groove 7 and supports and lean on, second location portion 4 and third location portion 5 support with another lateral wall of T type circular arc groove 7 and support and lean on, consequently, install measuring part 2 on positioning seat 1 and measure at every turn and all regard as the measuring basis with T type circular arc groove, and the centre of a circle of T type circular arc groove 7 is unanimous with the center of last semi-cylinder 6, thereby guarantee that the gland seal 8 that measuring part 2 records is for the central offset of T type circular arc groove 7, just also for the offset at last semi-cylinder 6 center. Adopt the depth gauge and adopt the measuring method of a point contact among the prior art, adopt the utility model discloses a vapor seal measuring device, measuring part 2 realizes fixing a position through positioning seat 1, first location portion 3, second location portion 4 and third location portion 5, and positioning seat 1 and measuring part 2 can not rotate for T type circular arc groove 7 when guaranteeing to measure at every turn to measurement accuracy has been improved.
In this embodiment, the gland seal measuring device further comprises an adjusting component 9, and the adjusting component 9 is used for adjusting the first positioning part 3 to move close to or away from the second positioning part 4 and the third positioning part 5. Therefore, the first positioning portion 3, the second positioning portion 4 and the third positioning portion 5 can abut against two side walls of the T-shaped arc grooves 7 with different widths, the whole device can be positioned on the T-shaped arc grooves 7 with different widths, and the applicability of the whole device is improved.
Specifically, the adjusting member 9 includes a slider 910 and a screw rod 920 in threaded connection with the slider 910, the positioning seat 1 is provided with a sliding groove 101, the slider 910 is located in the sliding groove 101, the screw rod 920 is rotatably connected with the positioning seat 1, and the first positioning portion 3 is connected with the slider 910. By rotating the screw 920, the slider 910 moves along the sliding groove 101, so as to drive the first positioning portion 3 to move closer to or away from the second positioning portion 4 and the third positioning portion 5. More specifically, in order to make the sliding block 910 and the sliding groove 101 fit more stably, the sliding groove 101 in this embodiment is a U-shaped sliding groove, a longitudinal section of the U-shaped sliding groove is i-shaped, a longitudinal section of the sliding block 910 fitted with the U-shaped sliding groove is also i-shaped, the baffle 110 is installed at an opening at an end of the U-shaped sliding groove through a fastener, and the screw rod 920 passes through the baffle 110 and can rotate relative to the baffle 110.
In the measuring process, the positioning seat 1 slides along the T-shaped arc groove 7, and when each measuring point is reached, the positioning seat 1 stops and corresponding measurement is carried out. Meanwhile, in the present embodiment, the first positioning portion 3 includes a first positioning shaft 310 installed on the positioning socket 1 and a first roller 320 installed on the first positioning shaft 310, the second positioning portion 4 includes a second positioning shaft 410 installed on the positioning socket 1 and a second roller 420 installed on the second positioning shaft 410, and the third positioning portion 5 includes a third positioning shaft 510 installed on the positioning socket 1 and a third roller 520 installed on the third positioning shaft 510. When the positioning seat 1 slides along the T-shaped arc groove 7, the first roller 320, the second roller 420, and the third roller 520 can reduce the friction between the first positioning portion 3, the second positioning portion 4, and the third positioning portion 5 and the side wall of the T-shaped arc groove 7, so that the whole steam seal measuring device moves more smoothly along the T-shaped arc groove 7. More specifically, for convenience of manufacture and assembly, the first positioning shaft 310 in this embodiment includes a first bolt, and the first roller 320 includes a first rolling bearing; the second positioning shaft 410 includes a second bolt, and the second roller 420 includes a second rolling bearing; the third positioning shaft 510 includes a third bolt, and the third roller 520 includes a third rolling bearing. The second bolt and the third bolt penetrate through the positioning seat 1 and are fixed in a nut and gasket mode; the first bolt penetrates through the sliding block 910 and is fixed in a nut and gasket mode, and the first rolling bearing, the second rolling bearing and the third rolling bearing are sleeved on the first bolt, the second bolt and the third bolt respectively.
In this embodiment, the screw rod 920 penetrates through a through hole formed in the first bolt, so that the screw rod 920 and the first bolt are in cross-shaped cross fit, after the first positioning portion 3 is adjusted in place by the sliding block 910 and the screw rod 920, the first bolt moves down by screwing a nut and a gasket which are matched with the first bolt, so that the sliding block 910 and the screw rod 920 are locked, and the position of the first positioning portion 3 is fixed. The whole device is more stable in the positioning of the T-shaped arc groove 7 in the mode, and the subsequent measurement is convenient.
As a preferred embodiment, the measuring part 2 in this embodiment includes a bracket 210 connected to the positioning socket 1 and a dial indicator 220 mounted on the bracket 210. The bracket 210 can adjust the position of the dial indicator 220 relative to the steam seal 8, so that the measuring head of the dial indicator 220 keeps good contact fit with the measured arc surface of the steam seal 8.
Specifically, in order to make the bracket 210 have a larger adjustment angle and range and make the adjustment more convenient, the bracket 210 in this embodiment includes a first steering rod 211 having one end connected to the positioning seat 1, a second steering rod 212 pinned to the first steering rod 211, and a clamp 213 ball-hinged to one end of the second steering rod 212, and the dial indicator 220 is clamped on the clamp 213.
More specifically, the bracket 210 in this embodiment further includes a magnet 214 that can be adsorbed on the positioning seat 1, and the first steering rod 211 is ball-hinged to the magnet 214. The arrangement mode is convenient for adjusting the installation position of the measuring component 2 on the positioning seat 1, the support 210 has a larger steering angle, and the applicability of the whole device is improved.
More specifically, the bracket 210 in this embodiment further includes a locking sleeve 215, and the locking sleeve 215 is threadedly coupled to a pin connecting the first steering rod 211 and the second steering rod 212. After the position of the dial indicator 220 is adjusted in place, the first steering rod 211 and the second steering rod 212 are locked by tightening the locking sleeve 215, so that the position of the dial indicator 220 relative to the positioning seat 1 is determined, and the subsequent measurement is facilitated.
The utility model discloses a T type arc groove on the last semi-cylinder of gland seal measuring device is measured as the benchmark, this T type arc groove is the finish machining face for installing nozzle group usefulness, adopt 3 antifriction bearing on this device to roll on the arc surface of the T type arc groove of semicircle, the amesdial that connects on the support leans on adjusting level gland seal, but rotate through 2 spherical articulated space multi-angles on the support, in order to guarantee the reliability of amesdial contact, can direct observation to the whole central skew numerical value size of gland seal, and a direction, and is simple in operation, and data is reliable. Wherein 2 fixed antifriction bearing laminating are on the outer lane circular arc of T type circular arc groove, and another adjustable antifriction bearing laminating is on the inner circle circular arc to contact closely, stable, it is too big difference not to obtain the data to different personnel's measurement. Moreover, the precision of the micrometer is higher than that of a depth gauge, so that errors caused by manual measurement are reduced, and the measurement precision is improved. The utility model discloses a vapor seal measuring device is more accurate to the measurement of circular arc benchmark, and spatial dimension strong adaptability, the personnel that the frock brought influence for a short time, convenient operation, dismouting convenient to carry, present measurement accuracy can reach 0.03 mm.
The utility model discloses a vapor seal measuring device is when measuring, laminates on T type circular arc groove excircle circular arc 2 fixed antifriction bearings on the positioning seat earlier, then follows the helical drive that the slider passes through the lead screw with adjustable antifriction bearing, adjusts suitable position to laminate to the interior circular arc in T type circular arc groove, the nut that will be located the slider reverse side again sets up. The locking sleeve is properly loosened, the dial indicator is abutted against the steam seal through the 2-section spherical hinge joint, the 2-section spherical hinge joint can finish the measurement of the gauge at any angle in space, and the locking sleeve is fastened after the position is adjusted. The positioning seat rolls a whole half circle on the T-shaped arc groove along with the 3 rolling bearings, and the reading record of the dial indicator is observed.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The steam seal measuring device is characterized by comprising a positioning seat and a measuring component arranged on the positioning seat, wherein a first positioning part, a second positioning part and a third positioning part are arranged on the positioning seat, and the first positioning part, the second positioning part and the third positioning part are distributed in a triangular mode.
2. The gland seal measuring device according to claim 1, wherein: the adjusting component is used for adjusting the first positioning part to move close to or away from the second positioning part and the third positioning part.
3. The gland seal measuring device according to claim 2, wherein: the adjusting part comprises a sliding block and a screw rod in threaded connection with the sliding block, a sliding groove is formed in the positioning seat, the sliding block is located in the sliding groove, the screw rod is rotationally connected with the positioning seat, and the first positioning part is connected with the sliding block.
4. The gland seal measuring device according to claim 1, wherein: the first positioning part comprises a first positioning shaft arranged on the positioning seat and a first roller arranged on the first positioning shaft; the second positioning part comprises a second positioning shaft arranged on the positioning seat and a second roller arranged on the second positioning shaft; the third positioning part comprises a third positioning shaft arranged on the positioning seat and a third roller arranged on the third positioning shaft.
5. The gland seal measuring device according to claim 1, wherein: the measuring part comprises a bracket connected with the positioning seat and a dial indicator arranged on the bracket.
6. The gland seal measuring device according to claim 5, wherein: the bracket comprises a first steering rod, a second steering rod and a fixture, wherein one end of the first steering rod is connected with the positioning seat, the second steering rod is in pin joint with the first steering rod, the fixture is in ball hinge joint with one end of the second steering rod, and the dial indicator is clamped on the fixture.
7. The gland seal measuring device of claim 6, wherein: the support still including can adsorb the magnet on the positioning seat, first steering column with it is articulated to inhale the iron ball.
8. The gland seal measuring device of claim 6, wherein: the support further comprises a locking sleeve, and the locking sleeve is in threaded connection with a pin shaft which is connected with the first steering rod and the second steering rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021544804.5U CN212747647U (en) | 2020-07-30 | 2020-07-30 | Vapor seal measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021544804.5U CN212747647U (en) | 2020-07-30 | 2020-07-30 | Vapor seal measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212747647U true CN212747647U (en) | 2021-03-19 |
Family
ID=75024191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021544804.5U Active CN212747647U (en) | 2020-07-30 | 2020-07-30 | Vapor seal measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212747647U (en) |
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2020
- 2020-07-30 CN CN202021544804.5U patent/CN212747647U/en active Active
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