CN219511507U - Gap measuring device - Google Patents
Gap measuring device Download PDFInfo
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- CN219511507U CN219511507U CN202320427861.2U CN202320427861U CN219511507U CN 219511507 U CN219511507 U CN 219511507U CN 202320427861 U CN202320427861 U CN 202320427861U CN 219511507 U CN219511507 U CN 219511507U
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- measuring
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- gap
- measurement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model is suitable for the technical field of measurement, and provides a gap measuring device, which comprises: the measuring mechanism comprises a measuring component which is arranged on a rotating ring, the rotating ring is supported and rotatably arranged on a fixed ring, and the fixed ring is fixedly arranged on the lifting seat; the height adjusting device also comprises a height adjusting component for adjusting the height of the measuring mechanism in the vertical direction. The gap measuring device provided by the utility model can obtain multiple groups of measurement data so as to improve the accuracy of measurement. In addition, through making the swivel ring rotate for the solid fixed ring, can make the second measurement module adjust for the position of first measurement module, realize the measurement to more positions, obtain more groups of data to improve measuring result's accuracy.
Description
Technical Field
The utility model belongs to a measuring device, in particular to a gap measuring device.
Background
In the steam turbine, the effect of the gland is to reduce the steam turbine leakage loss, and the qualified gland clearance can ensure the relative internal efficiency of the steam turbine, and the too small clearance can influence the safe operation of the steam turbine, and the too large internal efficiency of the steam turbine can be reduced, so in the installation process of the gland, the quality of the gland clearance adjustment is critical to the safe and economic operation of the unit.
At present, the adjustment of the steam seal clearance is generally carried out by adopting lead skin for indirect measurement, specifically, a steam seal block is propped against a steam turbine partition plate, lead skin is placed on one side of the steam turbine partition plate facing to a rotor, the rotor is positioned and pressed on the lead skin, then the rotor is hung off, the lead skin is taken down, and the lead skin is further measured, so that the indirect measurement of the steam seal clearance is realized; in the traditional mode, a single measuring module (such as a vernier caliper, a micrometer and the like) is adopted for measuring the lead skin, and in the traditional measuring mode, the pressed lead skin cannot be subjected to multi-point measurement, so that the measuring result is single, and accurate gap data cannot be obtained.
Disclosure of Invention
An object of an embodiment of the present utility model is to provide a gap measurement device, which aims to solve the technical problems set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions.
A gap measuring device, said measuring device comprising:
the measuring mechanism comprises a measuring component which is arranged on a rotating ring, the rotating ring is supported and rotatably arranged on a fixed ring, and the fixed ring is fixedly arranged on the lifting seat;
and the height adjusting component is used for adjusting the height of the measuring mechanism in the vertical direction.
Further, the height-adjusting assembly comprises a supporting frame, the supporting frame is supported and fixedly installed on the base, the height-adjusting assembly further comprises an electric telescopic cylinder, the electric telescopic cylinder is connected with one end of the telescopic rod, and the measuring mechanism is installed at the other end of the telescopic rod.
Further, lifting guide rails are arranged on the side edges of the supporting frames, the measuring mechanism is arranged on the lifting seat, the lifting seat is fixedly arranged at the other end of the telescopic rod, guide sliding blocks matched with the lifting guide rails are fixedly arranged on the lifting seat, and the guide sliding blocks are supported and slidingly arranged in the lifting guide rails, so that good guiding effect is achieved when the measuring mechanism moves in the vertical direction.
Further, a measuring platform is arranged on the base, a lead to be measured, which is positioned under the measuring mechanism, is placed on the measuring platform, and then the measuring mechanism is moved downwards by utilizing an electric telescopic cylinder so as to measure the lead to be measured, which is placed on the measuring platform, by utilizing the measuring mechanism, and thus the turbine clearance is measured indirectly;
the measuring mechanism further comprises a driving piece, wherein the driving piece is used for driving the rotating ring to rotate relative to the fixed ring;
the driving piece comprises a servo motor which is fixedly arranged on the rotating ring; a driving gear is fixedly arranged on an output shaft of the servo motor; the driving piece further comprises a supporting toothed ring meshed with the driving gear, the supporting toothed ring is fixedly sleeved on the fixed ring, and when the driving gear is rotated by the servo motor, the rotating ring can rotate relative to the fixed ring due to the meshing between the driving gear and the supporting toothed ring.
Further, the measurement assembly includes:
the first measuring module is coaxially and fixedly arranged on the rotating ring;
the second measuring module is positioned at a horizontal position opposite to the first measuring module and is adjusted through a displacement piece.
Further, the first measuring module comprises a first measuring cylinder fixedly installed on the rotating ring, and a first measuring rod is arranged on the first measuring cylinder; the second measuring module comprises a second measuring cylinder and a second measuring rod connected with the second measuring cylinder.
Further, the displacement member comprises a fixed plate fixedly arranged on the rotary ring, an adjusting screw rod is rotatably supported on the fixed plate, and the rotation of the adjusting screw rod is driven by a forward and reverse motor; the forward and reverse rotating motor is fixedly arranged on one of the fixed plates; the displacement piece further comprises a moving block, and the moving block is arranged on the adjusting screw rod in a threaded connection mode, so that when the adjusting screw rod rotates, the position of the moving block is adjusted;
the second measuring cylinder is fixedly arranged on the moving block.
Further, the displacement piece further comprises a guide rod, the guide rod is fixedly arranged on the fixed plate, and one side of the moving block is slidably sleeved on the guide rod, so that the moving block cannot rotate.
Further, the first measuring rod is coaxially rotated to be provided with a marker post, a strip-shaped channel is formed in the marker post, the second measuring rod is arranged in the strip-shaped channel in a penetrating and sliding mode, and the second measuring module is not influenced in adjusting the position of the second measuring module relative to the first measuring module through the strip-shaped channel.
Compared with the prior art, when the clearance measuring device provided by the utility model is used, the first measuring rod is propped against the lead to be measured, so that the first measuring rod is retracted relative to the first measuring cylinder, and the second measuring rod is propped against the measuring platform, so that the second measuring rod is retracted relative to the second measuring cylinder, and therefore, a height difference exists between the upper surface of the lead to be measured and the upper surface of the measuring platform; on one hand, the thickness of the lead skin to be measured can be measured by using the first measuring module to obtain a first group of data, and on the other hand, the second group of measuring data is obtained by indicating the height difference generated between the first measuring rod and the second measuring rod through the set marker post, wherein the second group of data is used for auxiliary verification of the first group of data so as to improve the measuring accuracy. In addition, through making the swivel ring rotate for the solid fixed ring, can make the second measurement module adjust for the position of first measurement module, realize the measurement to more positions, obtain more groups of data to improve measuring result's accuracy.
Drawings
FIG. 1 is a block diagram of a gap measuring device according to the present utility model;
FIG. 2 is a schematic diagram of a measuring mechanism in the gap measuring device according to the present utility model;
FIG. 3 is a schematic diagram of a measuring assembly in the measuring mechanism according to the present utility model;
FIG. 4 is a schematic diagram illustrating the cooperation between the measuring mechanism and the supporting frame according to the present utility model;
fig. 5 is a schematic view of a partially enlarged structure at a in fig. 4.
In fig. 1-5:
100. a base;
200. a support frame; 201. lifting the guide rail;
300. a measurement platform;
400. lead skin to be measured;
500. an electric telescopic cylinder; 501. a telescopic rod;
600. a lifting seat; 601. a guide slide block;
700. a measuring mechanism; 701. a rotating ring; 7012. a support ring gear; 702. a fixing ring; 703. a fixing plate; 704. adjusting a screw rod; 705. a forward and reverse rotation motor; 706. a guide rod; 707. a moving block; 708. a servo motor; 7081. a drive gear;
800. a first measurement module; 801. a first measuring cylinder; 802. a first measuring rod; 803. a target; 804. a strip-shaped channel;
900. a second measurement module; 901. a second measuring cylinder; 902. and a second measuring rod.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
In the embodiment of the utility model, as shown in fig. 1, a gap measuring device comprises a measuring mechanism 700 and a height adjusting component for adjusting the height of the measuring mechanism 700 in the vertical direction.
In this embodiment of the present utility model, the height adjusting assembly includes a supporting frame 200, where the supporting frame 200 is fixedly supported on the base 100, and further includes an electric telescopic cylinder 500, where the electric telescopic cylinder 500 is connected to one end of the telescopic rod 501, and the measuring mechanism 700 is installed at the other end of the telescopic rod 501.
It can be appreciated that the height adjusting assembly provided by the utility model can push the measuring mechanism 700 to move along the vertical direction by controlling the extension and retraction of the electric extension and retraction cylinder 500, so as to realize the height adjusting process.
Further, referring to fig. 1-2, in the embodiment of the present utility model, a lifting rail 201 is provided at a side of the supporting frame 200, the measuring mechanism 700 is mounted on a lifting seat 600, the lifting seat 600 is fixedly mounted at the other end of the telescopic rod 501, a guiding slider 601 matched with the lifting rail 201 is fixedly mounted on the lifting seat 600, and the guiding slider 601 is slidably supported in the lifting rail 201, so that the measuring mechanism 700 has a good guiding effect when moving in a vertical direction.
With continued reference to fig. 1, in the embodiment of the present utility model, a measuring platform 300 is mounted on the base 100, a lead sheet 400 to be measured located directly below the measuring mechanism 700 is placed on the measuring platform 300, and then the measuring mechanism 700 is moved down by using the electric telescopic cylinder 500, so that the lead sheet 400 to be measured placed on the measuring platform 300 is further measured by using the measuring mechanism 700, and thus the turbine clearance is indirectly measured.
Preferably, as shown in fig. 2-4, in an embodiment of the present utility model, the measuring mechanism 700 includes:
a measuring assembly, the measuring assembly is arranged on a rotating ring 701, the rotating ring 701 is rotatably supported on a fixed ring 702, and the fixed ring 702 is fixedly arranged on the lifting seat 600;
and the driving piece is used for driving the rotary ring 701 to rotate relative to the fixed ring 702.
As shown in fig. 4-5, in the embodiment of the present utility model, the driving member includes a servo motor 708, and the servo motor 708 is fixedly installed on the rotating ring 701; a driving gear 7081 is fixedly arranged on the output shaft of the servo motor 708; the driving piece further comprises a supporting toothed ring 7012 meshed with the driving gear 7081, the supporting toothed ring 7012 is fixedly sleeved on the fixed ring 702, and when the driving gear 7081 is rotated by the servo motor 708, the rotating ring 701 rotates relative to the fixed ring 702 due to the meshing between the driving gear 7081 and the supporting toothed ring 7012.
With continued reference to fig. 2-4, in an embodiment of the present utility model, the measurement assembly includes:
a first measurement module 800, wherein the first measurement module 800 is coaxially and fixedly mounted on the rotating ring 701;
the second measuring module 900 is adjusted by a displacement member with respect to the horizontal position of the first measuring module 800 by the second measuring module 900.
Specifically, in the embodiment of the present utility model, the first measuring module 800 includes a first measuring cylinder 801 fixedly installed on the rotating ring 701, and a first measuring rod 802 is disposed on the first measuring cylinder 801; the second measuring module 900 comprises a second measuring cylinder 901 and a second measuring rod 902 connected to the second measuring cylinder 901.
Further, as shown in fig. 3, in the embodiment of the present utility model, the displacement member includes a fixing plate 703 fixedly installed on the rotating ring 701, an adjusting screw 704 is rotatably supported on the fixing plate 703, and rotation of the adjusting screw 704 is driven by a forward and reverse rotation motor 705; the forward and reverse rotation motor 705 is fixedly arranged on one of the fixing plates 703; the displacement member further comprises a moving block 707, wherein the moving block 707 is mounted on the adjusting screw 704 in a threaded connection manner, so that when the adjusting screw 704 rotates, the position of the moving block 707 is adjusted.
Wherein in an embodiment of the utility model the second measuring cylinder 901 is fixedly mounted on the moving block 707.
Specifically, in the embodiment of the present utility model, the output shaft of the forward and reverse rotation motor 705 is connected with one end of the adjusting screw 704 through a coupling, so that the adjusting screw 704 is driven to rotate by using the started forward and reverse rotation motor 705, so that the position of the moving block 707 can be adjusted further according to the rotation direction of the adjusting screw 704, that is, the position of the second measuring module 900 relative to the first measuring module 800 is adjusted.
With continued reference to fig. 3, in an embodiment of the present utility model, the displacement member further includes a guide rod 706, the guide rod 706 is fixedly mounted on the fixed plate 703, and one side of the moving block 707 is slidably sleeved on the guide rod 706, so that the moving block 707 does not rotate.
With continued reference to fig. 2-3, in the embodiment of the present utility model, a marker post 803 is coaxially rotatably disposed on the first measuring rod 802, a strip-shaped channel 804 is disposed on the marker post 803, and the second measuring rod 902 is slidably disposed in the strip-shaped channel 804 in a penetrating manner, so that the adjustment of the position of the second measuring module 900 relative to the first measuring module 800 is not affected by the disposed strip-shaped channel 804.
In the embodiment of the measuring assembly provided by the utility model, one of the first measuring module 800 or the second measuring module 900 is abutted against the lead sheet 400 to be measured, and the other is abutted against the measuring platform 300 by utilizing the displacement member; for example, the first measuring module 800 is abutted against the lead sheet 400 to be measured, the second measuring module 900 is abutted against the measuring platform 300, wherein when the first measuring rod 802 is abutted against the lead sheet 400 to be measured, the first measuring rod 802 retracts relative to the first measuring cylinder 801, and similarly, when the second measuring rod 902 is abutted against the measuring platform 300, the second measuring rod 902 retracts relative to the second measuring cylinder 901, so that a height difference exists between the upper surface of the lead sheet 400 to be measured and the upper surface of the measuring platform 300; on the one hand, the first measuring module 800 may be used to measure the thickness of the lead sheet 400 to be measured to obtain a first set of data, and on the other hand, through the set gauge post 803, the second set of measuring data is obtained, where the second set of data is used for auxiliary verification of the first set of data, so as to improve the accuracy of measurement. In addition, by rotating the rotating ring 701 relative to the fixed ring 702, the position of the second measurement module 900 relative to the first measurement module 800 can be adjusted, so as to realize measurement of more points, and obtain more data, so as to improve accuracy of measurement results.
The above embodiments are merely illustrative of a preferred embodiment, but are not limited thereto. In practicing the present utility model, appropriate substitutions and/or modifications may be made according to the needs of the user.
Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. A gap measuring device, said measuring device comprising:
the measuring mechanism comprises a measuring component, the measuring component is arranged on a rotating ring, the rotating ring is supported and rotatably installed on a fixed ring, the fixed ring is fixedly installed on a lifting seat, and the measuring mechanism is installed on the lifting seat;
and the height adjusting component is used for adjusting the height of the measuring mechanism in the vertical direction.
2. The gap measurement device of claim 1, wherein the height adjustment assembly comprises a support frame supported and fixedly mounted on the base, and further comprising an electric telescopic cylinder connected to one end of a telescopic rod, and a measurement mechanism mounted to the other end of the telescopic rod.
3. The gap measuring device according to claim 2, wherein a lifting guide rail is provided at a side edge of the supporting frame, the lifting seat is fixedly mounted at the other end of the telescopic rod, a guide sliding block matched with the lifting guide rail is fixedly mounted on the lifting seat, and the guide sliding block is supported and slidingly arranged in the lifting guide rail.
4. A gap measuring apparatus according to claim 3, wherein the base has a measuring platform mounted thereon; the measuring mechanism further includes:
the driving piece is used for driving the rotating ring to rotate relative to the fixed ring; the driving piece comprises a servo motor which is fixedly arranged on the rotating ring; a driving gear is fixedly arranged on an output shaft of the servo motor; the driving piece further comprises a supporting toothed ring meshed with the driving gear, and the supporting toothed ring is fixedly sleeved on the fixing ring.
5. The gap measurement device of claim 4, wherein the measurement assembly comprises:
the first measuring module is coaxially and fixedly arranged on the rotating ring;
the second measuring module is positioned at a horizontal position opposite to the first measuring module and is adjusted through a displacement piece.
6. The gap measuring device of claim 5, wherein the first measuring module comprises a first measuring cylinder fixedly mounted on the rotating ring, the first measuring cylinder having a first measuring rod disposed thereon; the second measuring module comprises a second measuring cylinder and a second measuring rod connected with the second measuring cylinder.
7. The gap measuring device according to claim 6, wherein the displacement member includes a fixed plate fixedly mounted on the rotary ring, an adjusting screw is rotatably supported on the fixed plate, and rotation of the adjusting screw is driven by a forward and reverse rotation motor;
the displacement piece further comprises a moving block, and the moving block is arranged on the adjusting screw rod in a threaded connection mode;
the second measuring cylinder is fixedly arranged on the moving block.
8. The gap measuring device of claim 7, wherein the displacement member further comprises a guide rod fixedly mounted on the fixed plate, and one side of the moving block is slidably sleeved on the guide rod.
9. The gap measuring device according to any one of claims 6-8, wherein a marker post is coaxially rotatably arranged on the first measuring rod, a strip-shaped channel is formed in the marker post, and the second measuring rod is arranged in the strip-shaped channel in a penetrating and sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320427861.2U CN219511507U (en) | 2023-03-09 | 2023-03-09 | Gap measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320427861.2U CN219511507U (en) | 2023-03-09 | 2023-03-09 | Gap measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219511507U true CN219511507U (en) | 2023-08-11 |
Family
ID=87549107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320427861.2U Active CN219511507U (en) | 2023-03-09 | 2023-03-09 | Gap measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219511507U (en) |
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2023
- 2023-03-09 CN CN202320427861.2U patent/CN219511507U/en active Active
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