CN207229178U - A kind of axis side hand-barring for being suitable for double shaft industrial steam turbines - Google Patents
A kind of axis side hand-barring for being suitable for double shaft industrial steam turbines Download PDFInfo
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- CN207229178U CN207229178U CN201721143192.7U CN201721143192U CN207229178U CN 207229178 U CN207229178 U CN 207229178U CN 201721143192 U CN201721143192 U CN 201721143192U CN 207229178 U CN207229178 U CN 207229178U
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- barring
- industrial steam
- axis side
- steam turbines
- double shaft
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Abstract
The barring gear technical field of industrial steam turbine is the utility model is related to, in particular to a kind of axis side hand-barring for being suitable for double shaft industrial steam turbines, including crank（1）, crank handle sleeve barrel（3）, worm screw（7）, worm gear（8）With jiggering bearing（12）, the worm screw（7）One end pass through crank handle sleeve barrel（3）, spindle nose sleeve（4）With crank（1）It is removably joined together；Worm screw（7）The end of the other end be equipped with moving shaft holder（11）.The hand-barring of the utility model can make worm and wormwheel reliably engage and disengage automatically, so as to fulfill barring mechanism and Industrial Steam Turbine Rotors Aided engage and disengagement；It can realize that spindle nose side and axis caudal all drag the axis side panel car of loaded industrial steam turbine.
Description
Technical field
The barring gear technical field of industrial steam turbine is the utility model is related to, is suitable in particular to one kind double
The axis side hand-barring of shaft industrial steam turbine.
Background technology
Common single shaft industrial steam turbine is only in axis caudal currently on the market（Low pressure (LP) cylinder side）Drag industrial load, this form
Most of supporting jiggering of industrial steam turbine institute is disposed coaxially on turbine high-pressure side axle head position, when pump stack design needs steam turbine
When high-pressure side spindle nose also drags load, spindle nose jiggering does not apply to.Application range is more limited to.
Such as the Chinese utility model patent that Authorization Notice No. is 202194693 U of CN, it discloses a kind of steam turbine disk
Car device, is related to steam turbine technology, including jiggering gear wheel, gear shaft, pinion gear, worm gear, worm component, motor, ratchet
Block, Manual jigger mechanism, housing etc..Jiggering gear wheel is rotated by ratchet wheel block driving steam turbine rotor, utilizes turbine rotor
Rotating speed realizes automatically engaging and automatically exiting from for barring gear.The barring gear of the utility model is not required other inputs, exits
Mechanism, lithe, avoid conventional barring gear jiggering gear wheel and rotor with the high speed rotary blasting of rotating speed, wasted work and
Phenomena such as bearing box of steam turbine temperature raises, while the hand turning being additionally provided with extreme situation, ensure that barring gear
Reliability of operation.But the hand wheel shaft in Manual jigger mechanism can only be dragged at spindle nose end and loaded, double shaft industry are not suitable for
Steam turbine.
In another example Authorization Notice No. is the Chinese utility model patent of 202718719 U of CN, it discloses a kind of steam turbine
Electric barring equipment, be arranged on through housing on rear bearing block, housing is equipped with motor, and motor drives floating tooth through reducing gear
Wheel, floating gear is arranged on swinging block, and swinging block is arranged on housing through shaft, during jiggering swinging block drive floating gear with
The jiggering gear being fixed on turbine rotor is meshed, and swinging block drives floating gear to depart from and is fixed on steam turbine during non-jiggering
Jiggering gear on rotor.The utility model simplifies electric barring structure, and motor is engaged through reducing gear driving floating gear
Electric barring can be achieved in jiggering gear, and floating gear automatically resets after jiggering, and the degree of automation is high, easy to use, disk
Car effect is good；Manual jigger mechanism is also equipped with the same time, and operating personnel carry out jiggering manually under the convenient situation of power failure etc. suddenly.But
One end dragging load can only be carried out by operation handle, application range is relatively narrow.
Utility model content
The purpose of this utility model is to provide a kind of axis side hand-barring for being suitable for double shaft industrial steam turbines, solution
Certainly single shaft can only be axis tail drags industrial load the problem of in the prior art.
Double shaft industrial steam turbines then need to drag different loads in spindle nose side and axis caudal, therefore for the structure
Industrial steam turbine, the main points of the design of barring gear are from axis side input power, reliably engage and disengage, in addition, it is desirable to close
Reason ground considers and the structure space using existing industrial steam turbine, avoids causing the big of global design to change because jiggering is changed,
Therefore the jiggering needs compact to design, flexible arrangement.For the industrial steam turbine of the ripe design of certain domestic type, the barring mechanism is very
Solves problem above well.
In order to realize above-mentioned purpose of design, the scheme that the utility model uses is as follows：
A kind of according to the utility model is suitable for the axis side hand-barring of double shaft industrial steam turbines, including shakes
, crank handle sleeve barrel, worm screw, worm gear and jiggering bearing, one end of the worm screw is removable by crank handle sleeve barrel, spindle nose sleeve and crank
Link together with unloading；The end of the other end of worm screw is equipped with moving shaft holder.The hand-barring of the utility model can
Worm and wormwheel is set reliably to engage and disengage automatically；The position of spindle nose sleeve need to be only adjusted, insertion safety pin may be implemented in axis
Rostral and axis caudal drag different loads.
Preferably, the crank handle sleeve barrel on be provided with connecting hole, which is built into safety pin.
In any of the above-described scheme preferably, the left end of the worm screw passes through roller bearing, and the inner ring of the bearing is equipped with
Sliding key sleeve.
In any of the above-described scheme preferably, it is provided with featherway on the left of the worm screw.
In any of the above-described scheme preferably, the featherway is engaged with the sliding key sleeve of roller bearing inner ring.
In any of the above-described scheme preferably, the moving shaft holder is fixed on sliding block.
In any of the above-described scheme preferably, the sliding block is located on guide rail, is slided along the guide rail.
In any of the above-described scheme preferably, the guide rail is by jiggering seat supports.
In any of the above-described scheme preferably, resetting spring and limited block are additionally provided with the jiggering bearing.
In any of the above-described scheme preferably, which is additionally provided with rotating shaft bearing.
The course of work of the axis side hand-barring for being suitable for double shaft industrial steam turbines of the utility model is：Jiggering
When, safety pin is first extracted, crank is inserted into crank handle sleeve barrel and spindle nose sleeve, crank is promoted forward, overcomes spring force, due to worm screw
Left section be provided with featherway, and the sliding key sleeve with being sleeved on roller bearing inner ring is engaged；Meanwhile the mobile bearing of worm screw right end
Seat be fixed on sliding block, sliding block can be slided along guide rail, therefore, under the promotion of crank, worm screw can move axially to
The worm gear position of engagement.When the tooth contact of worm spiral part and worm gear, it is i.e. engageable to rotate clockwise crank, at a fully engaged position
Put be subject to worm screw right side and revolution load bearing block pressure it is upper, revolution load bearing block is mainly used to offset worm and gear rotation
Axial force of the worm gear to worm screw when turning.After jiggering, crank is rotated counterclockwise, and worm and gear is disengaged, in resetting spring
Under the action of worm screw exit, adjust spindle nose sleeve portion, be inserted into safety pin.
Brief description of the drawings
Fig. 1 is to show according to the structure of the axis side hand-barring for being suitable for double shaft industrial steam turbines of the utility model
It is intended to.
Figure label explanation：
Crank 1, safety pin 2, crank handle sleeve barrel 3, spindle nose sleeve 4, fixed bearing block 5, featherway 6, worm screw 7, worm gear 8, leads
Rail 9, sliding block 10, moving shaft holder 11, jiggering bearing 12, load rotating shaft bearing 13, resetting spring 14, limited block 15, roller bearing
Bearing 16, featherway 17.
Embodiment
In order to better understand according to the axis side hand turning dress for being suitable for double shaft industrial steam turbines of the utility model
Put, describe the axis side hand-barring that is suitable for double shaft industrial steam turbines according to the utility model below in conjunction with the accompanying drawings
Specific embodiment.
Refering to what is shown in Fig. 1, the axis side hand-barring for being suitable for double shaft industrial steam turbines according to the utility model
Structure diagram.
The axis side hand-barring for being suitable for double shaft industrial steam turbines of the utility model, including crank 1, crank set
Cylinder 3, worm screw 7, worm gear 8 and jiggering bearing 12, one end of the worm screw 7 are removable by crank handle sleeve barrel 3, spindle nose sleeve 4 and crank 1
Link together with unloading；The end of the other end of worm screw 7 is equipped with moving shaft holder 11.The hand-barring energy of the utility model
Worm and wormwheel is enough set reliably to engage and disengage automatically；The position of spindle nose sleeve 4 need to be only adjusted, insertion safety pin 2 can be achieved
Different loads is dragged in spindle nose side and axis caudal.
In the present embodiment, the crank handle sleeve barrel 3 on be provided with connecting hole, which is built into safety pin 2.
In the present embodiment, the left end of the worm screw 7 passes through roller bearing 16, and the inner ring of the bearing is equipped with sliding key sleeve 6.
In the present embodiment, the left side of the worm screw 7 is provided with featherway 17.
In the present embodiment, the featherway 17 is engaged with the sliding key sleeve 6 of 16 inner ring of roller bearing.
In the present embodiment, the moving shaft holder 11 is fixed on sliding block 10.
In the present embodiment, the sliding block 10 is located on guide rail 9, is slided along the guide rail.
In the present embodiment, the guide rail 9 is supported by jiggering bearing 12.
In the present embodiment, resetting spring 14 and limited block 15 are additionally provided with the jiggering bearing 12, which is used for
Limit home when operating position and the disengagement when jiggering engages.
In the present embodiment, which is additionally provided with rotating shaft bearing 13.
In the present embodiment, worm gear 8 is fixed on armature spindle.
The course of work of the axis side hand-barring for being suitable for double shaft industrial steam turbines of the utility model is：Jiggering
When, safety pin 2 is first extracted, crank 1 is inserted into crank handle sleeve barrel 3 and spindle nose sleeve 4, crank 1 is promoted forward, overcomes spring force, by
Left section in worm screw 7 is provided with featherway 17, and the sliding key sleeve 6 with being sleeved on 16 inner ring of roller bearing is engaged；Meanwhile worm screw 7
The moving shaft holder 11 of right end is fixed on sliding block 10, and sliding block 10 can be slided along guide rail 9, therefore, in the promotion of crank 1
Under, worm screw 7 can move axially to and 8 position of engagement of worm gear.When the tooth contact of 7 spiral part of worm screw and worm gear 8, clockwise
Rotate that crank 1 is i.e. engageable, fully engaged position is subject to the right side of worm screw 7 and revolution load bearing block 13 presses upper, revolution
Axial force of the worm gear 8 to worm screw 7 when load bearing block 13 is mainly used to offset worm and gear rotation.After jiggering, counterclockwise
Crank 1 is rotated, worm and gear is disengaged, and worm screw 7 exits under the action of resetting spring 14, and 4 position of adjustment spindle nose sleeve, is inserted
Enter safety pin 2.
It will be apparent to those skilled in the art that the manual disk in axis side for being suitable for double shaft industrial steam turbines of the utility model
Car device includes any combination of each several part in this specification.As space is limited and in order to make the simplicity of specification, will not herein
These combinations are introduced in detail one by one, but after having seen this specification, any combination for each several part being made of this specification is formed
The scope of the utility model it is to be understood that being therefore not added with repeating.
Claims (10)
1. a kind of axis side hand-barring for being suitable for double shaft industrial steam turbines, including crank（1）, crank handle sleeve barrel（3）, snail
Bar（7）, worm gear（8）With jiggering bearing（12）, it is characterised in that：Worm screw（7）One end pass through crank handle sleeve barrel（3）, spindle nose sleeve
（4）With crank（1）It is removably joined together；Worm screw（7）The end of the other end be equipped with moving shaft holder（11）.
2. the axis side hand-barring as claimed in claim 1 for being suitable for double shaft industrial steam turbines, it is characterised in that：Shake
Sleeve（3）On be provided with connecting hole, which is built into safety pin（2）.
3. the axis side hand-barring as claimed in claim 1 for being suitable for double shaft industrial steam turbines, it is characterised in that：Snail
Bar（7）Left end pass through roller bearing（16）, the inner ring of the bearing is equipped with sliding key sleeve（6）.
4. the axis side hand-barring as claimed in claim 1 for being suitable for double shaft industrial steam turbines, it is characterised in that：Snail
Bar（7）Left side be provided with featherway（17）.
5. the axis side hand-barring as claimed in claim 4 for being suitable for double shaft industrial steam turbines, it is characterised in that：It is sliding
Keyway（17）With roller bearing（16）The sliding key sleeve of inner ring（6）It is engaged.
6. the axis side hand-barring as claimed in claim 1 for being suitable for double shaft industrial steam turbines, it is characterised in that：Move
Moving axis bearing（11）It is fixed on sliding block（10）On.
7. the axis side hand-barring as claimed in claim 6 for being suitable for double shaft industrial steam turbines, it is characterised in that：It is sliding
Block（10）Positioned at guide rail（9）On, slided along the guide rail.
8. the axis side hand-barring as claimed in claim 7 for being suitable for double shaft industrial steam turbines, it is characterised in that：Lead
Rail（9）By jiggering bearing（12）Support.
9. the axis side hand-barring as claimed in claim 8 for being suitable for double shaft industrial steam turbines, it is characterised in that：Disk
Car bearing（12）On be additionally provided with resetting spring（14）And limited block（15）.
10. it is suitable for the axis side hand-barring of double shaft industrial steam turbines as claimed in any one of claims 1-9 wherein, its
It is characterized in that：The hand-barring is additionally provided with rotating shaft bearing（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143192.7U CN207229178U (en) | 2017-09-07 | 2017-09-07 | A kind of axis side hand-barring for being suitable for double shaft industrial steam turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143192.7U CN207229178U (en) | 2017-09-07 | 2017-09-07 | A kind of axis side hand-barring for being suitable for double shaft industrial steam turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229178U true CN207229178U (en) | 2018-04-13 |
Family
ID=61860860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721143192.7U Active CN207229178U (en) | 2017-09-07 | 2017-09-07 | A kind of axis side hand-barring for being suitable for double shaft industrial steam turbines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125678A (en) * | 2019-05-31 | 2019-08-16 | 中国神华能源股份有限公司 | A kind of assembling tool, planetary gear train device and assemble method |
-
2017
- 2017-09-07 CN CN201721143192.7U patent/CN207229178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125678A (en) * | 2019-05-31 | 2019-08-16 | 中国神华能源股份有限公司 | A kind of assembling tool, planetary gear train device and assemble method |
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