阅读说明：本技术 一种火电厂汽轮机检修装置 (Steam turbine of thermal power plant overhauls device ) 是由 王京国 徐长军 冯广伟 王晓飞 张良 韩善响 谭高翔 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种火电厂汽轮机检修装置,包括至少两个支撑座,每个支撑座均包括两个轴线平行的滚轮,所述滚轮用于配合汽轮机芯轴的外圆周面对汽轮机进行支撑,所述滚轮通过丝杠滑块机构安装在支撑座上,所述丝杠滑块机构用于调节两个滚轮轴线的间距,用于配合不同直径的汽轮机芯轴；所述支撑座至少有一个底部安装有滑动副,用于调节该支撑座与其他支撑座的间距；通过设置成对的滚轮对汽轮机芯轴进行支撑,不仅能够从多点实现对汽轮机进行支撑更为稳定,通过滚轮的支撑能够实现滚轮与汽轮机芯轴的配合转动,从而调整汽轮机的角度,达到获取最佳检修角度的效果。(The invention discloses a steam turbine maintenance device of a thermal power plant, which comprises at least two supporting seats, wherein each supporting seat comprises two rollers with parallel axes, the rollers are used for supporting a steam turbine by matching with the outer circumference of a steam turbine mandrel, the rollers are arranged on the supporting seats through a lead screw slider mechanism, and the lead screw slider mechanism is used for adjusting the distance between the axes of the two rollers and matching with the steam turbine mandrels with different diameters; the bottom of at least one of the supporting seats is provided with a sliding pair for adjusting the distance between the supporting seat and other supporting seats; support the steam turbine dabber through setting up mated gyro wheel, can not only follow the multiple spot and realize supporting more stably to the steam turbine, can realize through the support of gyro wheel that the cooperation of gyro wheel and steam turbine dabber rotates to the angle of adjustment steam turbine reaches the effect of acquireing best maintenance angle.)

1. The overhauling device for the steam turbine of the thermal power plant is characterized by comprising at least two supporting seats, wherein each supporting seat comprises two rollers with parallel axes, the rollers are used for supporting the steam turbine by matching with the outer circumference of a steam turbine mandrel, the rollers are arranged on the supporting seats through a lead screw slider mechanism, and the lead screw slider mechanism is used for adjusting the distance between the axes of the two rollers and matching with the steam turbine mandrels with different diameters; the supporting seat is provided with at least one sliding pair at the bottom for adjusting the distance between the supporting seat and other supporting seats.

2. The steam turbine overhaul device of a thermal power plant as claimed in claim 1, wherein the screw mechanism slide block comprises a screw and two slide blocks matched with the screw, two rollers with parallel axes are correspondingly mounted on the two slide blocks through supporting shafts matched with bearings respectively, and the slide blocks are supported by the top surface of the supporting base.

3. The thermal power plant steam turbine service apparatus of claim 2, wherein the lead screw includes two threads of opposite hand, and two sliders are respectively engaged with the two threads for changing the distance between the axes of the two rollers when the lead screw rotates.

4. The steam turbine overhaul device of a thermal power plant as claimed in claim 1 wherein a support plate is correspondingly mounted below the support blocks, and the support blocks with the sliding pairs mounted thereon are mounted on the support plate by means of the sliding pairs.

5. The steam turbine service apparatus of a thermal power plant of claim 4, wherein said sliding pair further incorporates a locking device for intermittently locking the position of the corresponding support plate.

6. The steam turbine overhaul device of a thermal power plant of claim 5 wherein the support blocks with the sliding pairs engaged therewith engage the top surfaces of the support plates, and the pressure received by the support blocks is directly transmitted to the support plates.

7. The steam turbine overhaul device of a thermal power plant of any one of claims 4 to 6 further comprising a base, wherein the support plates are each mounted to the base by telescoping rods, and the telescoping rods are configured to change the relative heights of the rollers corresponding to different support blocks by telescoping.

8. The steam turbine service apparatus of a thermal power plant of claim 7, wherein the plurality of expansion rods are provided for each support plate, and are uniformly disposed between each support plate and the base for uniformly applying the stress of the support plate to the base.

9. The steam turbine service apparatus of a thermal power plant of claim 1, wherein the corresponding two rollers of each support plate are identical in structure and have flush corresponding end surfaces.

10. The steam turbine service apparatus of a thermal power plant of claim 1, wherein the rollers comprise a plurality of sizes, and wherein the rollers of different sizes have different diameters and different outer circumferential shapes for correspondingly supporting different diameter sizes and different circumferential shapes of the turbine spindle.

Technical Field

The application relates to a steam turbine overhauls the field, specific steam turbine of thermal power plant overhauls device that says so.

Background

The steam turbine is a rotary power machine which converts the energy of steam into mechanical work, is also called as a steam turbine, is mainly used as a prime mover for power generation, can directly drive various pumps, fans, compressors, ship propellers and the like, and can meet the heat supply requirements in production and life by utilizing the exhaust steam or intermediate extraction steam of the steam turbine, and the steam turbine is a very key energy supply tool in a thermal power plant.

The inventor discovers, present maintenance to the steam turbine need with the steam turbine hoist on the assumption placer, and to the steam turbine of equidimension not, place used device often because unable adjustment size and bring great trouble for placing of steam turbine, and at the maintenance in-process, to some highly lower positions, because the steam turbine volume is huge, it is comparatively loaded down with trivial details to change relative maintenance position through the method of hoisting the upset, and the power consumption is huge, inconvenient realization in limited space, often need maintainer squat or lie the below of steam turbine, under this state, maintainer's working strength is big, extremely easy fatigue, the maintenance progress is slow, the efficiency of whole maintenance process has been drawn down.

Disclosure of Invention

The purpose of this application is to the defect that prior art exists, provides a steam turbine of thermal power plant overhauls device, according to the steam turbine of waiting to overhaul of different specifications, sets up the vice interval to the supporting seat of sliding and adjusts, makes the supporting seat be in the supporting position reasonable to the steam turbine to can rotate the steam turbine that supports at any time through the support of gyro wheel, thereby adjust the maintenance position of steam turbine and be in the best operating position all the time, reach the effect that improves support stability and maintenance efficiency.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a steam turbine maintenance device for a thermal power plant comprises at least two supporting seats, wherein each supporting seat comprises two idler wheels with parallel axes, the idler wheels are used for supporting a steam turbine by matching with the outer circumference of a steam turbine mandrel, the idler wheels are arranged on the supporting seats through a lead screw slider mechanism, and the lead screw slider mechanism is used for adjusting the distance between the axes of the two idler wheels and matching with the steam turbine mandrels with different diameters; the supporting seat is provided with at least one sliding pair at the bottom for adjusting the distance between the supporting seat and other supporting seats.

Furthermore, the screw mechanism slide block comprises a screw and two slide blocks matched with the screw, the rollers with parallel axes are correspondingly arranged on the two slide blocks through supporting shafts and bearings respectively, and the slide blocks are supported by the top surface of the supporting seat.

Furthermore, the screw rod comprises two sections of threads with opposite screwing directions, and the two sliding blocks are respectively correspondingly matched with the two sections of threads and used for changing the distance between the axes of the two rollers when the screw rod rotates.

Furthermore, a supporting plate is correspondingly arranged below the supporting seat, and the supporting seat provided with a sliding pair is arranged on the supporting plate through the matching of the sliding pair.

Furthermore, the sliding pair is also matched with a locking device for intermittently locking the position of the corresponding support plate.

Furthermore, the supporting seat matched with the sliding pair is attached to the top surface of the supporting plate, and the pressure received by the supporting seat can be directly transmitted to the supporting plate.

Further, still include the base, the backup pad all install on the base through the telescopic link, the telescopic link is used for changing the relative height that different supporting seats correspond the gyro wheel through flexible.

Furthermore, the telescopic link that every backup pad corresponds all has a plurality ofly, evenly arranges between every backup pad and base for on the even application of the atress of backup pad to the base.

Furthermore, two corresponding idler wheels on each supporting plate are identical in structure, and the corresponding end faces are flush.

Furthermore, the rollers comprise multiple specifications, and the rollers with different specifications have different diameters and outer circumferential shapes and are used for correspondingly supporting the steam turbine mandrels with different diameters and different circumferential shapes.

Compared with the prior art, the application has the advantages and positive effects that:

(1) the paired rollers are arranged to support the steam turbine mandrel, so that the steam turbine can be supported more stably from multiple points, and the rollers and the steam turbine mandrel can be matched and rotated through the support of the rollers, so that the angle of the steam turbine is adjusted, and the effect of obtaining the optimal maintenance angle is achieved;

(2) the supporting seats are used for supporting the steam turbine from a plurality of positions of the mandrel, and for the steam turbine with large axial length, the distance between supporting points can be reduced, so that the supporting force is dispersed, the concentration of the supporting force is avoided, the problem that the steam turbine deforms due to overlarge self weight is avoided, and the supporting seats can be reasonably protected;

(3) the supporting seat with at least one adjustable position is arranged, so that the distance between the supporting seats can be effectively changed, and the steam turbines with different axial lengths can be adapted, thereby improving the application range of the whole overhauling device, and realizing supporting and overhauling on the steam turbines with different specifications in the same thermal power plant;

(4) the distance between the rollers is adjusted by matching the lead screw with the two sliding blocks, the movement of the two sliding blocks can be completed by adjusting only one lead screw by each supporting seat, and the rollers with different distances can be matched with the steam turbine mandrels with different diameters, are in clearance fit with the adjustable supporting seats and can be adapted to steam turbines with different specifications;

(5) the height of driving the supporting seat through the telescopic link is adjusted, the height of the whole steam turbine can be effectively improved, the lifting device is taken in comparison with the traditional lifting mode, the height of the lifting device is adjusted by the aid of a jacking mode with higher controllability, the height of the steam turbine can be adjusted safely and accurately, and the maintenance position under some special states can be conveniently checked and maintained by maintenance personnel in a comfortable posture from the lower side with larger space.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of the overall structure of a service device according to embodiment 1 of the present application;

fig. 2 is a schematic view of a lead screw slider mechanism according to embodiment 1 of the present application;

FIG. 3 is a schematic structural view of a sliding pair in embodiment 1 of the present application;

fig. 4 is a side view of the sliding pair structure according to embodiment 1 of the present application.

Wherein: 1. the base, 2, the telescopic link, 3, first backup pad, 4, first spout, 5, sliding seat, 6, first supporting seat, 7, first regulation carousel, 8, lead screw, 9, supporting disk, 10, pulley, 11, second spout, 12, mount pad, 13, lead screw, 14, slider, 15, gyro wheel, 16, second regulation carousel, 17, second backup pad, 18, second supporting seat.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.

As introduced in the background art, in the prior art, the steam turbine needs to be lifted to assume a placing device for the maintenance of the steam turbine, and for the steam turbines with different sizes, the placing device often brings great trouble to the placement of the steam turbine because the size of the placing device cannot be adjusted, and in the maintenance process, for some positions with lower height, because the steam turbine has a huge volume, the maintenance position is relatively complicated to change by a lifting and turning method, the energy consumption is huge, the maintenance is inconvenient to realize in a limited space, and maintenance personnel are often required to squat or lie below the steam turbine.