CN216348191U

CN216348191U - Lever meter measuring device for size of moving blade of steam turbine

Info

Publication number: CN216348191U
Application number: CN202122881495.1U
Authority: CN
Inventors: 龙维; 黄一江
Original assignee: Changzhou 3d Technology Complete Set Equipment Co ltd
Current assignee: Changzhou 3d Technology Complete Set Equipment Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-19
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a lever meter measuring device for the size of a movable vane of a steam turbine, and particularly relates to the field of measuring equipment, which comprises a protective component, wherein the protective component comprises a fixed shell, the bottom end of the inner surface of the fixed shell is fixedly connected with a cleaning block, the outer surface of the cleaning block is provided with an air hole, a spring telescopic rod is fixedly connected inside the fixed shell and above the cleaning block, one end of the spring telescopic rod, which is far away from the fixed shell, is fixedly connected with a sleeve, after a dial plate completely enters the inside of the fixed shell, a measuring needle on the dial plate is clamped inside a limit ring, under the combined action of the sleeve and a rotating shaft, the limit ring can move along with the measuring needle according to the position of the measuring needle after the measuring needle is clamped inside the limit ring, so that the limit ring is prevented from damaging the measuring needle when the measuring needle is clamped, and the measuring needle is protected when the measuring needle is not used, the measuring needle is prevented from being accidentally damaged, and the detection result is prevented from being influenced when the measuring needle is used next time.

Description

Lever meter measuring device for size of moving blade of steam turbine

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to a lever meter measuring device for the size of a movable blade of a steam turbine.

Background

The turbine blade is a key part of a turbine, is one of the finest and most important parts, bears the combined action of high temperature, high pressure, huge centrifugal force, steam exciting force, corrosion and vibration and wet steam area water drop erosion under extremely harsh conditions, and needs to use a lever meter to measure the geometric errors and the mutual position correctness of the surface of the turbine blade during production and processing of the turbine blade.

However, in the use process of the existing lever meter, after the lever meter is used, the measuring needle of the lever meter is exposed, the outer surface of the exposed measuring needle is easy to damage, and the accuracy of monitoring data of the lever meter can be influenced. Therefore, we improve this problem by providing a lever meter measuring device for measuring the size of the moving blades of the steam turbine.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the lever indicator measuring device for the size of the movable vane of the steam turbine comprises a protection assembly, wherein the protection assembly comprises a fixed shell, a cleaning block is fixedly connected to the bottom end of the inner surface of the fixed shell, an air hole is formed in the outer surface of the cleaning block, a spring telescopic rod is fixedly connected to the inner portion of the fixed shell and located above the cleaning block, a sleeve is fixedly connected to one end, away from the fixed shell, of the spring telescopic rod, a rotating shaft is rotatably connected to the inner portion of the sleeve, a limiting ring is fixedly connected to the outer surface of the rotating shaft and located on the outer side of the sleeve, a mounting seat is fixedly connected to the inner portion of the fixed shell and located above the spring telescopic rod, and an air bag is fixedly connected to the outer surface of the mounting seat.

As a preferred technical scheme, one side of the protection assembly is provided with a connecting assembly, the connecting assembly comprises a base, the upper surface of the base is movably connected with a universal rod, one end of the universal rod, far away from the base, is rotatably connected with a connecting rod, one end of the connecting rod, far away from the universal rod, is movably connected with an adjusting cylinder, and the outer surface of the adjusting cylinder is fixedly connected with a dial plate.

As a preferable technical scheme of the utility model, the outer surface of the base is fixedly connected with a fixed shell, and a reinforcing rib is arranged at the joint of the base and the fixed shell.

As a preferred technical scheme of the utility model, the size of the dial plate is matched with that of the limiting ring, and the dial plate is connected with the limiting ring in a clamping manner.

As a preferable technical scheme of the utility model, the installation seats are arranged in multiple groups, and the installation seats arranged in the multiple groups are arranged on the inner surface of the fixed shell in a mirror symmetry mode by taking the vertical central line of the fixed shell as a symmetry axis.

As a preferable technical scheme of the utility model, the air bag is connected with the cleaning block in a penetrating way through a connecting pipeline, and a one-way valve is arranged on the air bag.

As a preferable technical solution of the present invention, the position of the sleeve corresponds to the position of the stop collar, and the sleeve is away from the stop collar.

The utility model has the beneficial effects that:

1. this lever table measuring device of steam turbine movable vane size, after the dial plate enters into the inside of set casing completely, the survey pin block on the dial plate is in the inside of spacing ring, under the combined action of sleeve and pivot, can be after the inside of spacing ring according to the position of survey pin at the survey pin block, the spacing ring is followed the survey pin and is removed, the spacing ring leads to the fact the damage to the survey pin when avoiding block survey pin, protect the survey pin when not using simultaneously, prevent that the survey pin from receiving accidental damage, when using next time, influence the testing result.

2. This lever table measuring device of steam turbine movable vane size, after the inside of dial plate block at the set casing, the dial plate produces the extrusion to the gasbag, and the inside air of gasbag passes through the outside discharge of gas pocket this moment, clears away the inside impurity of cleaning block, before the measuring stylus enters into the inside of cleaning block, makes the inside of cleaning block keep clean, avoids the impurity that the previous processing got off, adheres to on the measuring stylus again.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is an external view of a lever meter measuring device for measuring the size of a moving blade of a steam turbine according to the present invention;

FIG. 2 is a right side view of a lever gauge measurement device for measuring the size of a moving blade of a steam turbine according to the present invention;

FIG. 3 is a top view of a lever gauge measurement device for measuring the size of a moving blade of a steam turbine according to the present invention;

FIG. 4 is an enlarged view of part A in FIG. 3 of the lever meter measuring device for measuring the size of the moving blades of the steam turbine according to the present invention.

In the figure: 1. a connecting assembly; 11. a dial plate; 12. an adjusting cylinder; 13. a connecting rod; 14. a gimbal lever; 15. a base; 2. a protection component; 201. a stationary case; 202. an air bag; 203. a mounting seat; 204. air holes; 205. a cleaning block; 206. a spring telescopic rod; 207. a sleeve; 208. a limiting ring; 209. a rotating shaft.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1 and 4, the lever indicator measuring device for the size of the moving blade of the steam turbine of the utility model comprises a protection assembly 2, the protection assembly 2 comprises a fixed shell 201, a cleaning block 205 is fixedly connected to the bottom end of the inner surface of the fixed shell 201, an air hole 204 is formed in the outer surface of the cleaning block 205, a spring telescopic rod 206 is fixedly connected to the inner portion of the fixed shell 201 and above the cleaning block 205, a sleeve 207 is fixedly connected to one end, away from the fixed shell 201, of the spring telescopic rod 206, the position of the sleeve 207 corresponds to the position of a limiting ring 208, the sleeve 207 is far away from the limiting ring 208, a rotating shaft 209 is rotatably connected to the inner portion of the sleeve 207, a limiting ring 208 is fixedly connected to the outer surface of the rotating shaft 209 and outside the sleeve 207, mounting seats 203 are fixedly connected to the inner portion of the fixed shell 201 and above the spring telescopic rod 206, the mounting seats 203 are arranged in multiple groups, and the mounting seats 203 arranged in a mirror symmetry mode with the vertical central line of the fixed shell 201 as a symmetry axis, an air bag 202 is fixedly connected to the outer surface of the mounting seat 203, the air bag 202 is connected with a cleaning block 205 in a penetrating manner through a connecting pipeline, and a one-way valve is arranged on the air bag 202.

After dial plate 11 enters into the inside of set casing 201 completely, the interior at spacing ring 208 of the survey pin block on the dial plate 11, under the combined action of sleeve 207 and pivot 209, can be after the survey pin block is in the inside of spacing ring 208 according to the position of survey pin, spacing ring 208 moves along with the survey pin, spacing ring 208 causes the damage to the survey pin when avoiding block survey pin, protect the survey pin when not using simultaneously, prevent that the survey pin from receiving unexpected damage, when using next time, influence the testing result.

As shown in fig. 1, 2 and 3, one side of protection component 2 is provided with coupling assembling 1, coupling assembling 1 includes base 15, the outer fixed surface of base 15 is connected with set casing 201, base 15 is provided with the strengthening rib with the junction of set casing 201, the upper surface swing joint of base 15 has universal rod 14, the one end rotation that base 15 was kept away from to universal rod 14 is connected with connecting rod 13, the one end swing joint that universal rod 14 was kept away from to connecting rod 13 has an adjusting cylinder 12, the outer fixed surface of adjusting cylinder 12 is connected with dial plate 11, the size of dial plate 11 and spacing ring 208's size looks adaptation, dial plate 11 is connected with spacing ring 208 block.

After the dial 11 is clamped in the fixed shell 201, the dial 11 extrudes the air bag 202, at the moment, air in the air bag 202 is discharged outwards through the air hole 204, impurities in the cleaning block 205 are removed, before the stylus enters the cleaning block 205, the interior of the cleaning block 205 is kept clean, and the impurities processed in the previous time are prevented from being attached to the stylus again.

The working principle is as follows: after the lever indicator measuring equipment is used, the dial 11 is stored in the fixed shell 201, after the dial 11 is placed in the fixed shell 201, the air bag 202 in the fixed shell 201 limits the dial 11 at the moment, the measuring needle on the dial 11 firstly passes through the cleaning block 205, when the measuring needle passes through the cleaning block 205, the cleaning block 205 cleans the outer surface of the measuring needle, impurities attached to the outer surface of the measuring needle are removed, after the dial 11 completely enters the fixed shell 201, the measuring needle on the dial 11 is clamped in the limiting ring 208, under the combined action of the sleeve 207 and the rotating shaft 209, the limiting ring 208 can move along with the measuring needle according to the position of the measuring needle after the measuring needle is clamped in the limiting ring 208, the damage of the measuring needle caused by the limiting ring 208 when the measuring needle is clamped is avoided, and the measuring needle is protected when the measuring needle is not used, the measuring needle is prevented from being accidentally damaged, and the detection result is prevented from being influenced when the measuring needle is used next time.

Meanwhile, after the dial 11 is clamped in the fixed shell 201, the dial 11 extrudes the air bag 202, at the moment, air in the air bag 202 is discharged outwards through the air hole 204, impurities in the cleaning block 205 are removed, and before the measuring stylus enters the cleaning block 205, the cleaning block 205 is kept clean, so that the impurities processed in the previous time are prevented from being attached to the measuring stylus again.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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

1. The lever meter measuring device for the size of the movable vane of the steam turbine comprises a protection component (2) and is characterized in that the protection component (2) comprises a fixed shell (201), a cleaning block (205) is fixedly connected to the bottom end of the inner surface of the fixed shell (201), an air hole (204) is formed in the outer surface of the cleaning block (205), a spring telescopic rod (206) is fixedly connected to the inner portion of the fixed shell (201) and located above the cleaning block (205), a sleeve (207) is fixedly connected to one end, far away from the fixed shell (201), of the spring telescopic rod (206), a rotating shaft (209) is rotatably connected to the inner portion of the sleeve (207), a limiting ring (208) is fixedly connected to the outer surface of the rotating shaft (209) and located outside the sleeve (207), a mounting seat (203) is fixedly connected to the inner portion of the fixed shell (201) and located above the spring telescopic rod (206), the outer surface of the mounting seat (203) is fixedly connected with an air bag (202).

2. The lever indicator measuring device for the size of the movable vane of the steam turbine according to claim 1, wherein one side of the protection component (2) is provided with the connecting component (1), the connecting component (1) comprises a base (15), a universal rod (14) is movably connected to the upper surface of the base (15), one end, away from the base (15), of the universal rod (14) is rotatably connected with a connecting rod (13), one end, away from the universal rod (14), of the connecting rod (13) is movably connected with an adjusting cylinder (12), and a dial (11) is fixedly connected to the outer surface of the adjusting cylinder (12).

3. The lever indicator measuring device for the size of the movable blade of the steam turbine as claimed in claim 2, wherein a fixed shell (201) is fixedly connected to the outer surface of the base (15), and a reinforcing rib is arranged at the joint of the base (15) and the fixed shell (201).

4. The lever meter measuring device for the size of the moving blades of the steam turbine as claimed in claim 2, wherein the size of the dial plate (11) is matched with the size of the limit ring (208), and the dial plate (11) is connected with the limit ring (208) in a clamping manner.

5. The lever indicator measuring device for the size of the movable blade of the steam turbine as claimed in claim 1, wherein the mounting seats (203) are arranged in multiple groups, and the mounting seats (203) arranged in the multiple groups are arranged on the inner surface of the fixed shell (201) in a mirror symmetry manner by taking a vertical center line of the fixed shell (201) as a symmetry axis.

6. The lever meter measuring device for the size of the moving blade of the steam turbine as claimed in claim 1, wherein the air bag (202) is connected with the cleaning block (205) through a connecting pipeline in a penetrating manner, and a one-way valve is arranged on the air bag (202).

7. The lever indicator measuring device for the size of the moving blade of the steam turbine as claimed in claim 1, wherein the position of the sleeve (207) corresponds to the position of the limit ring (208), and the sleeve (207) is far away from the limit ring (208).