CN208564654U - A kind of piston bearing for steam turbine - Google Patents
A kind of piston bearing for steam turbine Download PDFInfo
- Publication number
- CN208564654U CN208564654U CN201820652224.4U CN201820652224U CN208564654U CN 208564654 U CN208564654 U CN 208564654U CN 201820652224 U CN201820652224 U CN 201820652224U CN 208564654 U CN208564654 U CN 208564654U
- Authority
- CN
- China
- Prior art keywords
- bearing
- card slot
- steam turbine
- lower cover
- hole
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of piston bearings for steam turbine, including lower cover, bearing is plugged at the top of the lower cover, the bottom end of the bearing is equipped with piston, it is opened up at the top of the bearing jagged, the first card slot and the second card slot are offered in the lower cover, and first card slot and the second card slot are interconnected, the second rubber block is provided in second card slot, and second rubber block is bonded in the second card slot by seccotine, the top of the lower cover is provided with upper end cover, and it is screwed between the upper end cover and lower cover by screw thread, through-hole is offered at the top of the upper end cover, output shaft is provided through in the through-hole, and the output shaft is plugged on the top of bearing, the top of the upper end cover offers fuel feed hole.The utility model is by the way that the convex block on bearing to be connected in the first card slot, so that becoming simpler to the installment work of bearing, while can play the role of anti-rotation again.
Description
Technical field
The utility model relates to piston bearing field, specifically a kind of piston bearing for steam turbine.
Background technique
Steam turbine is also referred to as steam turbine engine, is a kind of rotary steam power device, and high temperature and high pressure steam passes through solid
Nozzle is determined as being ejected on blade after the air-flow accelerated, makes the rotor rotation equipped with blade row, while external acting, steam turbine
It is the capital equipment of modern thermal power plant, piston bearing is an important component in steam turbine, existing steam turbine piston axis
The case where installment work held is complex, and bearing is easy to appear rotation in use needs after long-time use
Lubricating oil is added on bearing, improves the efficiency of its work, traditional oiling method is then lubricating oil is added in disassembly end cap, is added
Oily efficiency substantially reduces, it is thus impossible to meet the requirements.
Summary of the invention
The purpose of this utility model is to provide a kind of piston bearings for steam turbine, to solve the work of existing steam turbine
The problem of installment work for filling in bearing is complex, and bearing is easy to appear rotation in use.
To achieve the above object, the utility model provides the following technical solutions: a kind of piston bearing for steam turbine, packet
Lower cover is included, bearing is plugged at the top of the lower cover, the bottom end of the bearing is equipped with piston, opens at the top of the bearing
Equipped with notch, the first card slot and the second card slot are offered in the lower cover, and first card slot is mutually interconnected with the second card slot
It is logical, the second rubber block is provided in second card slot, and second rubber block is bonded in the second card slot by seccotine,
The top of the lower cover is provided with upper end cover, and is screwed between the upper end cover and lower cover by screw thread, the upper end cover
Top offer through-hole, output shaft is provided through in the through-hole, and the output shaft is plugged on the top of bearing, it is described
The top of upper end cover offers fuel feed hole, and heat release hole is offered in the upper end cover, peace is offered on the hole wall of the heat release hole
Tankage.
Preferably, fixation is connected with the first filter screen and the second filter screen, and first filter screen in the mounting groove
It is disposed proximate between the second filter screen.
Preferably, the bottom end of the fuel feed hole is communicated with oil inlet pipe, and one end of the oil inlet pipe extends in notch.
Preferably, it is connected with convex block in first card slot, and the convex block is closely welded on bearing.
Preferably, through slot is offered in second rubber block, and the width of the through slot gradually becomes smaller from top to bottom.
Preferably, the top of the bearing is fixedly connected by the first rubber block with the inner wall of upper end cover, and described first
Rubber block is truncated cone-shaped structure.
Compared with prior art, the utility model has the beneficial effects that the utility model is by by the convex block card on bearing
It connects in the first card slot, so that becoming simpler to the installment work of bearing, while anti-rotation can be played the role of again；Pass through
The width of second rubber block middle groove is arranged to gradually become smaller from top to bottom, so that the bottom end of convex block is by squeezing the second rubber
Block carries out clamping, and clamping effect is more preferable, and mounting stability is higher；By being provided with the first rubber block of truncated cone-shaped structure, in axis
It holds and plays the role of damping when shaking, extend its service life used；Fuel feed hole is connected to by oil inlet pipe with notch, is being needed
When lubricating oil is added, it need to be only directly added into from fuel feed hole, can be achieved with the oiling work to bearing, substantially increase oiling effect
Rate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the partial internal structure schematic diagram of the utility model.
In figure: 1- lower cover, 2- upper end cover, 3- piston, 4- mounting groove, 5- heat release hole, the first filter screen of 6-, the second mistake of 7-
Strainer, 8- oil inlet pipe, 9- fuel feed hole, 10- output shaft, 11- through-hole, the first rubber block of 12-, the first card slot of 13-, 14- convex block,
The second card slot of 15-, the second rubber block of 16-, 17, through slot, 18- bearing, 19- notch.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of piston bearing for steam turbine, including lower cover 1,
The top of lower cover 1 is plugged with bearing 18, and the bottom end of bearing 18 is equipped with piston 3, and the top of bearing 18 opens up jagged 19, under
The first card slot 13 and the second card slot 15 are offered in end cap 1, and the first card slot 13 and the second card slot 15 are interconnected, the second card slot
The second rubber block 16 is provided in 15, and the second rubber block 16 is bonded in the second card slot 15 by seccotine, the top of lower cover 1
End is provided with upper end cover 2, and is screwed between upper end cover 2 and lower cover 1 by screw thread, and the top of upper end cover 2 offers through-hole 11,
Be provided through output shaft 10 in through-hole 11, and output shaft 10 is plugged on the top of bearing 18, the top of upper end cover 2 offer into
Oilhole 9 offers heat release hole 5 in upper end cover 2, and mounting groove 4 is offered on the hole wall of heat release hole 5, and fixation is connected in mounting groove 4
First filter screen 6 and the second filter screen 7, and be disposed proximate between the first filter screen 6 and the second filter screen 7, played air filtering
The effect of middle dust, the bottom end of fuel feed hole 9 are communicated with oil inlet pipe 8, and one end of oil inlet pipe 8 extends in notch 19, so that being added
The operation of lubricating oil is simpler, refuels more efficient, convex block 14 is connected in the first card slot 13, and convex block 14 is closely welded on
On bearing 18, the case where preventing bearing 18 from rotating in the process, guarantee the normal work of the steam turbine, the second rubber block 16
In offer through slot 17, and the width of through slot 17 gradually becomes smaller from top to bottom, so that, bearing more preferable to the clamping effect of convex block 14
18 top is fixedly connected by the first rubber block 12 with the inner wall of upper end cover 2, and the first rubber block 12 is truncated cone-shaped structure, is risen
To the effect of damping.
The working principle of the utility model is: the convex block 14 on bearing 18 is directed at the first card slot 13 simultaneously first when installation
And inject, the bottom end of convex block 14 is clamped in the through slot 17 of the second rubber block 16 by squeezing, and realizes the regular worker to bearing 18
Make, the top of bearing 18 is fixedly connected by the first rubber block 12 with the inner wall of upper end cover 2, right using the elastic property of rubber
Bearing 18 in the course of work plays the role of damping, prolongs its service life, when needing on bearing 18 plus lubricating oil, only
Lubricating oil need to be added from fuel feed hole 9, lubricating oil is flowed on bearing 18 from oil inlet pipe 8, and refueling operation is more simple, effect of refueling
Rate is higher.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (6)
1. a kind of piston bearing for steam turbine, including lower cover (1), it is characterised in that: insert at the top of the lower cover (1)
It is connected to bearing (18), the bottom end of the bearing (18) is equipped with piston (3), is opened up at the top of the bearing (18) jagged
(19), the first card slot (13) and the second card slot (15), and first card slot (13) and second are offered in the lower cover (1)
Card slot (15) is interconnected, and is provided with the second rubber block (16) in second card slot (15), and second rubber block (16)
It is bonded in the second card slot (15) by seccotine, the top of the lower cover (1) is provided with upper end cover (2), and the upper end
It is screwed between lid (2) and lower cover (1) by screw thread, offers through-hole (11), the through-hole at the top of the upper end cover (2)
(11) it is provided through in output shaft (10), and the output shaft (10) is plugged on the top of bearing (18), the upper end cover (2)
Top offer fuel feed hole (9), offer heat release hole (5) in the upper end cover (2), opened on the hole wall of the heat release hole (5)
Equipped with mounting groove (4).
2. a kind of piston bearing for steam turbine according to claim 1, it is characterised in that: in the mounting groove (4)
Fixation is connected with the first filter screen (6) and the second filter screen (7), and between first filter screen (6) and the second filter screen (7)
It is disposed proximate to.
3. a kind of piston bearing for steam turbine according to claim 1, it is characterised in that: the fuel feed hole (9)
Bottom end is communicated with oil inlet pipe (8), and one end of the oil inlet pipe (8) extends in notch (19).
4. a kind of piston bearing for steam turbine according to claim 1, it is characterised in that: first card slot (13)
In be connected with convex block (14), and the convex block (14) is closely welded on bearing (18).
5. a kind of piston bearing for steam turbine according to claim 1, it is characterised in that: second rubber block
(16) it is offered in through slot (17), and the width of the through slot (17) gradually becomes smaller from top to bottom.
6. a kind of piston bearing for steam turbine according to claim 1, it is characterised in that: the top of the bearing (18)
End is fixedly connected by the first rubber block (12) with the inner wall of upper end cover (2), and first rubber block (12) is truncated cone-shaped knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820652224.4U CN208564654U (en) | 2018-05-03 | 2018-05-03 | A kind of piston bearing for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820652224.4U CN208564654U (en) | 2018-05-03 | 2018-05-03 | A kind of piston bearing for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564654U true CN208564654U (en) | 2019-03-01 |
Family
ID=65481635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820652224.4U Expired - Fee Related CN208564654U (en) | 2018-05-03 | 2018-05-03 | A kind of piston bearing for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208564654U (en) |
-
2018
- 2018-05-03 CN CN201820652224.4U patent/CN208564654U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190301 Termination date: 20190503 |