CN204248800U - Stator bearing shell installation special tool - Google Patents
Stator bearing shell installation special tool Download PDFInfo
- Publication number
- CN204248800U CN204248800U CN201420709209.0U CN201420709209U CN204248800U CN 204248800 U CN204248800 U CN 204248800U CN 201420709209 U CN201420709209 U CN 201420709209U CN 204248800 U CN204248800 U CN 204248800U
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- guide vane
- hydraulic jack
- plate
- hollow hydraulic
- vane bearing
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- Expired - Fee Related
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- 238000009434 installation Methods 0.000 title claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
本实用新型公开了导叶轴瓦安装专用工具，它包括螺杆(1)，螺杆(1)上从上往下依次连接有螺母(2)、空心液压千斤顶(3)、顶部压板(4)和底部受力板(5)；所述螺母(2)下方连接空心液压千斤顶(3)，空心液压千斤顶(3)下方连接顶部压板(4)，顶部压板(4)和底部受力板(5)之间设置有抱箍(6)。本实用新型通过空心液压千斤顶给顶部压板一个竖直向下的压力，顶部压板再将压力传递给导叶轴瓦，将导叶轴瓦压入导叶套筒中；同时，螺杆和螺母将空心液压千斤顶的反作用力传递给底部受力板，起到支撑受力的作用。本实用新型不仅能够提高安装效率，降低劳动强度，还具有防止装偏和防止导叶轴瓦损坏的作用。
The utility model discloses a special tool for installing guide vane bearing bushes, which comprises a screw rod (1), on which a nut (2), a hollow hydraulic jack (3), a top pressing plate (4) and a bottom are sequentially connected from top to bottom The force plate (5); the hollow hydraulic jack (3) is connected under the nut (2), and the top pressure plate (4) is connected under the hollow hydraulic jack (3), between the top pressure plate (4) and the bottom force plate (5) A hoop (6) is arranged between them. The utility model uses a hollow hydraulic jack to give a vertical downward pressure to the top pressure plate, and the top pressure plate then transmits the pressure to the guide vane bearing bush, and presses the guide vane bearing bush into the guide vane sleeve; at the same time, the screw and the nut press the hollow hydraulic jack The reaction force is transmitted to the bottom force plate to play the role of supporting force. The utility model can not only improve the installation efficiency and reduce the labor intensity, but also has the functions of preventing assembly deviation and preventing guide vane bearing bushes from being damaged.
Description
技术领域technical field
本实用新型涉及一种安装工具，特别是一种用于安装导叶轴瓦的专用工具。The utility model relates to an installation tool, in particular to a special tool for installing guide vane bearing bushes.
背景技术Background technique
在水轮机机组大修时，需要将磨损的导叶轴瓦进行更换，但由于导叶轴瓦在自然状态下外径大于导叶套筒内经，所以在回装新的导叶轴瓦时，需要用抱箍将导叶轴瓦抱紧，缩小导叶轴瓦的外径。不过，抱箍的作用有限，导叶轴瓦在抱箍的作用下，其外径仍略大于套筒内经。现有的导叶轴瓦安装工具通过锤子和垫在导叶轴瓦顶部的顶部压板，将导叶轴瓦慢慢的敲入导叶套筒中，安装速度慢，劳动强度大，且由于锤子的敲击力度和方向不稳定，容易出现安装位置偏移，导叶轴瓦损坏。因此，现有的导叶轴瓦安装工具存在着安装效率较低，劳动强度较大，较易装偏和较易损坏导叶轴瓦的问题。During the overhaul of the turbine unit, it is necessary to replace the worn guide vane bush, but since the outer diameter of the guide vane bush is larger than the inner diameter of the guide vane sleeve in the natural state, it is necessary to use a hoop to replace the guide vane bush when reinstalling a new one. The guide vane bearing pad is tightly hugged, and the outer diameter of the guide vane bearing pad is reduced. However, the effect of the hoop is limited, and the outer diameter of the guide vane bearing bush is still slightly larger than the inner diameter of the sleeve under the action of the hoop. The existing guide vane bearing pad installation tool slowly knocks the guide vane bearing pad into the guide vane sleeve through the hammer and the top pressure plate on the top of the guide vane bearing pad. The installation speed is slow and the labor intensity is high. The strength and direction are unstable, and the installation position is prone to shift, and the guide vane bearing bush is damaged. Therefore, the existing guide vane bearing pad installation tools have the problems of low installation efficiency, high labor intensity, easy installation deviation and easy damage to the guide vane bearing pad.
实用新型内容Utility model content
本实用新型的目的在于，提供一种导叶轴瓦安装专用工具。本实用新型不仅能够提高安装效率，降低劳动强度，还具有防止装偏和防止导叶轴瓦损坏的作用。The purpose of the utility model is to provide a special tool for installing guide vane bearing pads. The utility model can not only improve the installation efficiency and reduce the labor intensity, but also has the functions of preventing assembly deviation and preventing guide vane bearing bushes from being damaged.
本实用新型的技术方案：导叶轴瓦安装专用工具，包括螺杆，螺杆上从上往下依次连接有螺母、空心液压千斤顶、顶部压板和底部受力板；所述螺母下方连接空心液压千斤顶，空心液压千斤顶下方连接顶部压板，顶部压板和底部受力板之间设置有抱箍。The technical scheme of the utility model: the special tool for installing the guide vane bearing bush, including a screw rod, on which a nut, a hollow hydraulic jack, a top pressure plate and a bottom force plate are sequentially connected from top to bottom; the hollow hydraulic jack is connected below the nut, and the hollow The bottom of the hydraulic jack is connected with the top pressure plate, and a hoop is arranged between the top pressure plate and the bottom force plate.
前述的导叶轴瓦安装专用工具中，所述顶部压板为一圆形压板，顶部压板底面的外缘部设有凹槽，顶部压板中部通过圆孔连接螺杆。In the aforementioned special tool for installing the guide vane bearing bush, the top pressing plate is a circular pressing plate, the outer edge of the bottom surface of the top pressing plate is provided with a groove, and the middle part of the top pressing plate is connected to the screw rod through a round hole.
前述的导叶轴瓦安装专用工具中，所述底部受力板中部通过螺纹孔连接螺杆，底部受力板底面的外缘部设有若干固定孔，底部受力板通过固定孔连接有固定螺栓。In the aforementioned special tool for installing the guide vane bearing bush, the middle part of the bottom force plate is connected to the screw rod through a threaded hole, and the outer edge of the bottom surface of the bottom force plate is provided with several fixing holes, and the bottom force plate is connected with fixing bolts through the fixing holes.
前述的导叶轴瓦安装专用工具中，所述抱箍包括两个半圆，每个半圆的两端均设有凸耳，半圆通过凸耳和螺栓连接另一个半圆。In the aforementioned special tool for installing the guide vane bearing bush, the hoop includes two semicircles, each semicircle is provided with lugs at both ends, and the semicircles are connected to the other semicircle through lugs and bolts.
与现有技术相比，本实用新型改进了导叶轴瓦安装专用工具结构，通过空心液压千斤顶给顶部压板一个竖直向下的压力，顶部压板再将压力传递给导叶轴瓦，将导叶轴瓦压入导叶套筒中；同时，螺杆和螺母将空心液压千斤顶的反作用力传递给底部受力板，起到支撑受力的作用。此外，顶部压板的形状采用圆形，使导叶轴瓦四周受力均匀，防止导叶轴瓦装偏和损坏；凹槽的设置，能够防止导叶轴瓦在压力的作用下向外翻边而损坏。因此，本实用新型不仅能够提高安装效率，降低劳动强度，还具有防止装偏和防止导叶轴瓦损坏的作用。Compared with the prior art, the utility model improves the structure of the special tool for installing the guide vane bearing bush, and applies a vertical downward pressure to the top pressing plate through the hollow hydraulic jack, and the top pressing plate then transmits the pressure to the guide vane bearing bush, and the guide vane bearing bush Pressed into the guide vane sleeve; at the same time, the screw and nut transmit the reaction force of the hollow hydraulic jack to the bottom force plate to support the force. In addition, the shape of the top pressure plate is circular, so that the surrounding force of the guide vane bearing pad is even, and the guide vane bearing pad is prevented from being misaligned and damaged; the setting of the groove can prevent the guide vane bearing pad from being turned outward under the action of pressure and being damaged. Therefore, the utility model can not only improve the installation efficiency and reduce the labor intensity, but also have the functions of preventing assembly deviation and preventing guide vane bearing bush from being damaged.
附图说明Description of drawings
图1是本实用新型的结构示意图；Fig. 1 is a structural representation of the utility model;
图2是抱箍的结构示意图；Fig. 2 is the structural representation of hoop;
图3是本实用新型的工作原理图。Fig. 3 is a working principle diagram of the utility model.
附图中的标记为：1-螺杆，2-螺母，3-空心液压千斤顶，4-顶部压板，5-底部受力板，6-抱箍，7-凹槽，8-固定螺栓，9-半圆，10-凸耳，11-导叶轴瓦，12-导叶套筒。The marks in the drawings are: 1-screw, 2-nut, 3-hollow hydraulic jack, 4-top pressure plate, 5-bottom force plate, 6-clamp, 7-groove, 8-fixing bolt, 9- Semicircle, 10-lug, 11-guide vane bearing bush, 12-guide vane sleeve.
具体实施方式Detailed ways
下面结合附图和实施例对本实用新型作进一步的说明，但并不作为对本实用新型限制的依据。The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for limiting the utility model.
实施例。导叶轴瓦安装专用工具，构成如图1～3所示，包括螺杆1，螺杆1上从上往下依次连接有螺母2、空心液压千斤顶3、顶部压板4和底部受力板5；所述螺母2下方连接空心液压千斤顶3，空心液压千斤顶3下方连接顶部压板4，顶部压板4和底部受力板5之间设置有抱箍6。Example. The special tool for installing the guide vane bearing bush is composed as shown in Figures 1 to 3, including a screw 1, which is connected with a nut 2, a hollow hydraulic jack 3, a top pressure plate 4 and a bottom force plate 5 sequentially from top to bottom; The bottom of the nut 2 is connected to the hollow hydraulic jack 3, and the bottom of the hollow hydraulic jack 3 is connected to the top pressure plate 4, and a hoop 6 is arranged between the top pressure plate 4 and the bottom force plate 5.
所述顶部压板4为一圆形压板，由不锈钢材料制成，顶部压板4外径比导叶轴瓦11外径略大，顶部压板4底面的外缘部设有一圈凹槽7，顶部压板4中部通过圆孔连接螺杆1；所述底部受力板5中部通过螺纹孔连接螺杆1，底部受力板5底面的外缘部设有两个对称的固定孔，底部受力板5通过固定孔连接有固定螺栓8；所述抱箍6包括两个半圆9，每个半圆9的两端均设有凸耳10，半圆9通过凸耳10和螺栓连接另一个半圆9。The top pressing plate 4 is a circular pressing plate made of stainless steel. The outer diameter of the top pressing plate 4 is slightly larger than that of the guide vane bearing bush 11. The outer edge of the bottom surface of the top pressing plate 4 is provided with a circle of grooves 7. The top pressing plate 4 The middle part is connected to the screw rod 1 through a round hole; the middle part of the bottom force plate 5 is connected to the screw rod 1 through a threaded hole, and the outer edge of the bottom surface of the bottom force plate 5 is provided with two symmetrical fixing holes, and the bottom force plate 5 passes through the fixing holes Fixed bolts 8 are connected; the hoop 6 includes two semicircles 9, each semicircle 9 is provided with lugs 10 at both ends, and the semicircle 9 is connected to the other semicircle 9 through the lugs 10 and bolts.
如图3所示，本实用新型顶部压板4上的凹槽7的内径略小于导叶轴瓦11的内径，凹槽7的外径略大于导叶轴瓦11的外径，使用时将导叶轴瓦11卡在凹槽7内，防止导叶轴瓦11在压力的作用下向外翻边而损坏；抱箍6的两个半圆9通过凸耳10和螺栓连接，从而将导叶轴瓦11夹紧，缩小导叶轴瓦11的外径，便于安装；底部受力板5为圆形，且由不锈钢材料制成，其外径与导叶套筒12的外径相同，使用时通过螺栓和固定孔将其固定在导叶套筒12底部，起到支撑受力的作用。As shown in Figure 3, the inner diameter of the groove 7 on the top pressure plate 4 of the utility model is slightly smaller than the inner diameter of the guide vane bearing 11, and the outer diameter of the groove 7 is slightly larger than the outer diameter of the guide vane bearing 11. When using the guide vane bearing 11 is stuck in the groove 7 to prevent the guide vane bearing bush 11 from being flanged outward under the action of pressure and being damaged; the two semicircles 9 of the hoop 6 are connected by lugs 10 and bolts, thereby clamping the guide vane bearing bush 11, The outer diameter of the guide vane bearing bush 11 is reduced to facilitate installation; the bottom force plate 5 is circular and made of stainless steel, and its outer diameter is the same as that of the guide vane sleeve 12. It is fixed on the bottom of the guide vane sleeve 12 to play the role of supporting force.
安装时，空心液压千斤顶3在油压的作用下给顶部压板4一个竖直向下的压力，顶部压板4再将压力传递给导叶轴瓦11，使导叶轴瓦11沿图3中箭头所示方向移动，将导叶轴瓦11压入导叶套筒12中；同时，螺杆1和螺母2将空心液压千斤顶3的反作用力传递给底部受力板5，起到支撑受力的作用。During installation, the hollow hydraulic jack 3 gives a vertical downward pressure to the top pressure plate 4 under the action of oil pressure, and the top pressure plate 4 then transmits the pressure to the guide vane bearing bush 11, so that the guide vane bearing bush 11 moves along the direction indicated by the arrow in Fig. 3 . direction, press the guide vane bearing bush 11 into the guide vane sleeve 12; at the same time, the screw 1 and the nut 2 transmit the reaction force of the hollow hydraulic jack 3 to the bottom force plate 5 to support the force.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709209.0U CN204248800U (en) | 2014-11-21 | 2014-11-21 | Stator bearing shell installation special tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709209.0U CN204248800U (en) | 2014-11-21 | 2014-11-21 | Stator bearing shell installation special tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204248800U true CN204248800U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709209.0U Expired - Fee Related CN204248800U (en) | 2014-11-21 | 2014-11-21 | Stator bearing shell installation special tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204248800U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127951A (en) * | 2015-09-29 | 2015-12-09 | 云南大红山管道有限公司 | Extractor for high-pressure ore slurry diaphragm pump non-return valve seat |
| CN105643559A (en) * | 2015-11-23 | 2016-06-08 | 上海格拉曼国际消防装备有限公司 | Device suitable for rapidly assembling large-diameter fire hose |
| CN108098673A (en) * | 2017-12-11 | 2018-06-01 | 中国航发沈阳发动机研究所 | Low-pressure turbine blade baffle assembling and disassembling device |
| CN115476315A (en) * | 2022-09-23 | 2022-12-16 | 国网黑龙江省电力有限公司牡丹江水力发电总厂 | Bearing bush installation tool for guide vane of vertical water turbine |
-
2014
- 2014-11-21 CN CN201420709209.0U patent/CN204248800U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127951A (en) * | 2015-09-29 | 2015-12-09 | 云南大红山管道有限公司 | Extractor for high-pressure ore slurry diaphragm pump non-return valve seat |
| CN105643559A (en) * | 2015-11-23 | 2016-06-08 | 上海格拉曼国际消防装备有限公司 | Device suitable for rapidly assembling large-diameter fire hose |
| CN108098673A (en) * | 2017-12-11 | 2018-06-01 | 中国航发沈阳发动机研究所 | Low-pressure turbine blade baffle assembling and disassembling device |
| CN115476315A (en) * | 2022-09-23 | 2022-12-16 | 国网黑龙江省电力有限公司牡丹江水力发电总厂 | Bearing bush installation tool for guide vane of vertical water turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 |