CN109209732B - Servomotor temporary plugging tool - Google Patents
Servomotor temporary plugging tool Download PDFInfo
- Publication number
- CN109209732B CN109209732B CN201810961481.0A CN201810961481A CN109209732B CN 109209732 B CN109209732 B CN 109209732B CN 201810961481 A CN201810961481 A CN 201810961481A CN 109209732 B CN109209732 B CN 109209732B
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- CN
- China
- Prior art keywords
- servomotor
- pressing plate
- seal
- groove
- packing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/006—Sealing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a servomotor temporary plugging tool which comprises a YX sealing groove (1), a pressing plate (2), a connecting lug (3) and a packing groove (4); the pressing plate (2) is divided into two parts, a packing groove (4) is arranged on one pressing plate (2) along the longitudinal direction from bottom to top, the cross section of the pressing plate (2) is disc-shaped, a through hole (2.1) is arranged in the middle of the pressing plate, and a YX sealing groove (1) is arranged on the pressing plate (2) along the circumferential direction; each press plate (2) is provided with a connecting lug (3), and adjacent connecting lugs (3) are combined through bolts; the method overcomes the defects that the servomotor fork head needs to be detached when the servomotor is normally replaced in the prior art, the processing period of required time is too long, and the shutdown time of a unit is long, and has the advantages of quick integral installation and capability of ensuring the normal operation of the servomotor as soon as possible.
Description
Technical Field
The invention relates to the technical field of sealing temporary leakage stoppage of end covers of hydraulic turbines, in particular to a temporary leakage stoppage tool for a servomotor.
Background
The prior art is as follows: the hydraulic turbine servomotor is an important operating mechanism, stable operation of equipment must be guaranteed in the operation process of a unit, a shaft Yx seal is arranged between a servomotor front end cover and a piston rod and used for guaranteeing that oil in a servomotor cavity does not leak in the operation of the piston rod, the servomotor is connected with a control ring through the piston rod, a double connecting rod and the like, the servomotor is leaked due to the fact that the Yx seal is damaged possibly in the long-term operation process of the servomotor, normal operation of the servomotor cannot be achieved, and if the seal is replaced, measures such as pressure relief of the servomotor, water drainage of a pressure steel pipe and the like are needed, and unplanned operation stop of the unit can be caused.
The main disadvantages of pressure steel pipe drainage are as follows: if the pressure steel pipe needs to be drained, the hydraulic generator set needs to be withdrawn for standby, the disc valve is opened, the set runner access door is fallen down, the time is long, in the main flood season, the pressure steel pipe drains water to enable the set to be withdrawn for standby possibly to cause water abandonment, a large amount of economic loss is brought to a power plant, and under the current situation that the requirement on the reliability of the generator set is higher and higher, the power grid dispatching can also conduct unplanned outage check on the power plant.
The problems that exist are that: 1. because the seal is in a pressure state for a long time and the oil temperature is high, the seal of the servomotor is likely to age quickly, and the servomotor leaks oil in the operation process; 2. if the seal is replaced, measures such as servomotor pressure discharge, pressure steel pipe water discharge and the like need to be carried out, and unplanned shutdown of the unit can be caused. 3. When the servomotor fork is normally replaced, the servomotor fork needs to be detached, the required processing time is about 3 days, the unit needs to be shut down and quit for standby during the processing period, the processing period is too long, the unit is shut down for a long time, the reliability of the unit and the generated energy are affected, and millions of economic losses are directly caused.
The prior patents are as follows: the invention name is as follows: servomotor locking end cover sealing device, application No.: 201310477809.9, major disadvantages: the patent mainly provides a sealing device of a servomotor end cover, but has no good solution to oil leakage of the sealing device of the servomotor end cover in the operation process of a unit, the oil leakage treatment of the servomotor end cover can not be carried out under the working conditions that the unit is not stopped and a pressure steel pipe does not discharge water, if the sealing device of the servomotor end cover leaks, the unit still needs to be stopped, the pressure steel pipe can discharge water to treat the oil, and the treatment time and the robbery can not be effectively saved under the condition of high temperature and large load in summer.
The invention name is as follows: a bearing end cap seal structure, application number: 201710207942.0, major disadvantages: the patent is an improvement of a bearing end cover sealing form, is round, is not suitable for oil leakage of a servomotor end cover of a water turbine generator set, is inconvenient to perform leakage plugging treatment of the servomotor end cover in time, cannot perform oil leakage treatment of the servomotor end cover under the working conditions that the unit is not stopped and a pressure steel pipe does not drain water, and cannot effectively save treatment time and generate electricity in summer under the conditions of high temperature and heavy load.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a temporary leakage stopping tool for a servomotor.
The purpose of the invention is implemented by the following technical scheme: a servomotor temporary plugging tool comprises a YX sealing groove, a pressing plate, a connecting lug and a packing groove;
the pressing plate is divided into two parts, a packing groove is arranged on one pressing plate along the longitudinal direction from bottom to top,
the section of the pressure plate is disc-shaped, a through hole is formed in the middle of the pressure plate, and a YX sealing groove is formed in the pressure plate along the circumferential direction;
each the pressing plate is provided with a connecting lug, and adjacent connecting lugs are combined through bolts.
In the above technical scheme: the packing groove arranged on one side is fixedly bonded with the other side pressure plate through sealant.
In the above technical scheme: and the YX sealing groove and the workpiece are sealed by a rubber material.
The invention has the following advantages: 1. the invention has the advantages of convenient and quick field installation, and can complete the installation by utilizing two hours of the machine set halt state at night when the servomotor end cover is sealed and has leakage, and the installation is quickly carried out by utilizing the device to block the leaked oil, so that the servomotor can normally operate, the time is saved, and particularly, the servomotor can be put into operation as soon as possible to generate electricity after being quickly processed in a high-temperature and heavy-load period. 2. Compared with the normal servomotor, the invention saves 2 and half days for replacing the seal, and can strive for about 100 ten thousand of economic loss.
Drawings
Fig. 1 is a top view of the present patent.
Fig. 2 is a schematic structural diagram of the YX seal ring in this patent.
Fig. 3 is a schematic structural diagram of the packing groove in this patent.
In the figure: YX seal groove 1, clamp plate 2, through-hole 2.1, engaging lug 3, packing groove 4.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, but they are not to be construed as limiting the invention, and are presented by way of example only, and the advantages of the invention will become more apparent and can be easily understood by description.
Referring to FIGS. 1-3: a servomotor temporary plugging tool comprises a YX sealing groove 1, a pressing plate 2, a connecting lug 3 and a packing groove 4;
the pressing plate 2 is divided into two parts, a packing groove 4 is arranged on one pressing plate 2 along the longitudinal direction from bottom to top,
the section of the pressure plate 2 is disc-shaped, a through hole 2.1 is formed in the middle of the pressure plate 2, and a YX sealing groove 1 is formed in the pressure plate 2 along the circumferential direction;
each is provided with a connecting lug 3 on the pressure plate 2, and the adjacent connecting lugs 3 are combined through bolts.
The packing groove 4 arranged on one side is fixedly bonded with the pressing plate 2 on the other side through sealant.
And the YX sealing groove 1 and the workpiece are sealed through a rubber material.
As shown in figures 1-3, the servomotor end cover is processed after actual dimension measurement, when the servomotor end cover is installed, the surface cleanliness of the servomotor end cover is firstly checked, if paint is brushed on the surface, the paint is cleaned, whether the surface is smooth or not is checked by using a knife edge ruler, particularly a sealing contact surface is detected, the surface is ground flat by using an electric tool such as sand paper or an angle grinder at a high point, and if the servomotor end cover is installed on an uneven surface, the sealing compression amount is possibly insufficient, and leakage occurs.
Selecting a seal with a proper size according to the size of a YX seal groove 1, cutting the seal according to the required length, sleeving the seal on a servomotor piston rod, gluing the seal with a loctite 495 seal to form a whole circle, cutting a shaft according to the size and the length of a device, sealing the shaft with Yx, sleeving the seal on the servomotor piston rod, gluing the seal with the loctite 495 seal to form a whole circle, combining split pressing plates 2, installing packing with a corresponding size in a packing groove 4 after checking that the combined surface has no foreign matters or high points, screwing a handle bolt, then integrally installing the device on the servomotor piston rod, and paying attention to checking that the seal is intact when installing the device and entering the seal groove.
It is mainly characterized in that: the combined type solar water heater is not a full circle, is divided into two sections, can be installed at any time, is tightly combined by bolts, and is convenient to install; secondly, the adopted sealing materials are overhauled and bonded by glue, the combined surface is also designed with sealing, and pressure oil cannot leak from the combined surface; and thirdly, additional drilling is not needed during installation, and the servomotor is fastened by bolt holes of the original servomotor end cover.
The above-mentioned parts not described in detail are prior art.
Claims (1)
1. The utility model provides a servomotor leaks frock temporarily which characterized in that: the device comprises a YX sealing groove (1), a pressing plate (2), a connecting lug (3) and a packing groove (4);
the pressing plate (2) is divided into two parts, a packing groove (4) is arranged on one pressing plate (2) along the longitudinal direction from bottom to top,
the section of the pressure plate (2) is disc-shaped, a through hole (2.1) is formed in the middle of the pressure plate, and a YX sealing groove (1) is formed in the pressure plate (2) along the circumferential direction;
each press plate (2) is provided with a connecting lug (3), and adjacent connecting lugs (3) are combined through bolts; the packing groove (4) arranged on one side is fixedly bonded with the pressing plate (2) on the other side through sealant; the YX sealing groove (1) and the workpiece are sealed through a rubber material;
when the servomotor end cover is installed, firstly, the surface cleanliness of the servomotor end cover is checked, if paint is brushed on the surface, the paint is cleaned, and whether the surface is smooth is checked by using a knife edge ruler;
selecting a seal with a proper size according to the size of the YX seal groove (1), cutting the seal according to the required length, adhering the seal into a whole circle by adopting seal glue, and combining split pressing plates (2);
and packing with corresponding size is installed in the packing groove (4), the handle bolt is screwed down, and then the device is integrally installed on the servomotor piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961481.0A CN109209732B (en) | 2018-08-22 | 2018-08-22 | Servomotor temporary plugging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961481.0A CN109209732B (en) | 2018-08-22 | 2018-08-22 | Servomotor temporary plugging tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209732A CN109209732A (en) | 2019-01-15 |
| CN109209732B true CN109209732B (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810961481.0A Active CN109209732B (en) | 2018-08-22 | 2018-08-22 | Servomotor temporary plugging tool |
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| Country | Link |
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| CN (1) | CN109209732B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203335461U (en) * | 2013-05-20 | 2013-12-11 | 陆昕 | Output shaft leaking stoppage device of centrifugal compressor |
| CN203322630U (en) * | 2013-06-25 | 2013-12-04 | 高俊友 | Sleevelet type leaking stoppage device |
| CN203413286U (en) * | 2013-06-25 | 2014-01-29 | 姜丽娜 | Tool type circumferential weld sealing and plugging fixture |
| CN203797126U (en) * | 2014-03-06 | 2014-08-27 | 中国石油天然气股份有限公司吉林石化分公司 | Non-standard valve rod sealing device |
| CN204114463U (en) * | 2014-09-09 | 2015-01-21 | 贵州赤天化正泰工程有限责任公司 | A kind of flange blocking clamper |
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2018
- 2018-08-22 CN CN201810961481.0A patent/CN109209732B/en active Active
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| Publication number | Publication date |
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| CN109209732A (en) | 2019-01-15 |
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