CN101144510A - Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same - Google Patents
Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same Download PDFInfo
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- CN101144510A CN101144510A CNA200710050278XA CN200710050278A CN101144510A CN 101144510 A CN101144510 A CN 101144510A CN A200710050278X A CNA200710050278X A CN A200710050278XA CN 200710050278 A CN200710050278 A CN 200710050278A CN 101144510 A CN101144510 A CN 101144510A
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Abstract
The invention relates to an automatic synchronization clutch. The invention is mainly used in the working situations requiring automatic synchronization running, for example, the boiler water feeding pump steam turbine high speed engine turning gear of the electric generating set, the invention comprises an input component, an output component and a connecting mechanism thereof, the connecting mechanism comprises a tube shaped intermediate body, and the outer wall of the intermediate body has ratchets which are distributed toward the circumference and involute spline teeth, which respectively form a ratchet wheel and an involute outer spline; the inner wall of the intermediate body is an involute helical spline; the input part is a step axle, which has a matching section of the intermediate body; the involute helical spline is arranged on the column surface of the section, and matched with the involute helical spline of the inner wall of the intermediate body; the output part presents a tube shape, involute splines which are distributed toward the circumference are arranged on the inner wall, to forman involute inner spline, and the inner spline is opposite to the involute outer spline of the intermediate body; a ratchet mechanism is also arranged on the inner wall of the output part, and the ratchet mechanism is opposite to the ratchet wheel of the intermediate body. The security of the water feeding pump steam turbine high speed engine turning gear equipped with the clutch device is good.
Description
Technical field
The present invention relates to clutch, particularly a kind of self-synchronizing clutch, being mainly used in needs automatic synchronous operated workplace, for example generator set boiler feed pump turbine high speed jigger device.
Background branch art
The boiler feed pump of 300MW and above generator set is to use Steam Turbine Driven, and the axle of this steam feed pump is jam easily, needs the high speed jiggering before the startup, and the jiggering rotating speed requires more than 80r/min.This high speed jigger device is made up of barring motor, retarder and self-synchronizing clutch three parts, wherein the automatic input of barring gear and throw away by self-synchronizing clutch and finish.
Self-synchronizing clutch need possess following function: 1. when barring gear started, clutch is static to drop into combination automatically; 2. feed pump turbine moves to when being higher than the jiggering rotating speed, and clutch separates automatically; 3. feed pump turbine is beaten gate stop-start, and when rotating speed dropped to the jiggering rotating speed, clutch dynamically dropped into, combination automatically; Again be in the standby host state.
Satisfy the above-mentioned functions requirement, the structural design difficulty of clutch is very big, and domestic beyond example still though the product of this function is abroad arranged, is externally maintained secrecy at present, and Nobody Knows for its concrete structure.
Summary of the invention
One of purpose of the present invention is by independent development, and a kind of self-synchronizing clutch that possesses above-mentioned functions is provided.
Two of purpose of the present invention provides a kind of water supply pump steam turbine high speed jigger device of being furnished with above-mentioned self-synchronizing clutch.
The technological scheme that realizes above-mentioned purpose is:
A kind of self-synchronizing clutch comprises input block, output block and coupling mechanism thereof, wherein:
Described coupling mechanism comprises a tubulose intermediate, and the outer wall of this intermediate has the ratchet and the involute splines tooth of circumferential distribution, constitutes ratchet and involute outer spline respectively; The inwall of intermediate is the involute helical spline;
Described input block is a multidiameter shaft, has the section of cooperation with described intermediate, is the involute helical spline on the cylinder of this section, cooperates with the involute helical spline of described intermediate inwall;
Described output block in a tubular form, its inwall has the involute splines of circumferential distribution, constitutes involute inner spline, the involute outer spline of the corresponding described intermediate of this internal spline;
The inwall of described output block also is provided with detent mechanism, the ratchet of the corresponding described intermediate of this detent mechanism.
Described detent mechanism is made up of ratchet, pawl axis, torque spring, and described ratchet is assemblied on the described output block by pawl axis; Described torque spring is enclosed within on the described pawl axis, and an end of this torque spring withstands output block, and the other end withstands ratchet.
Described input block has flange, and the inner side step of this flange constitutes the axially locating seam of described intermediate, realizes that clutch is in conjunction with the location; The end face of the spiral involute splined shaft section of described input block is provided with end cap, and the diameter of this end cap forms an extension greater than splined shaft section; The inwall of described intermediate has the axially locating seam, and this seam cooperates with the extension of described end cap, realizes the clutch separation location.
Two sections of described involute helical spline are respectively equipped with the damping oil pocket.
Described input block have an axial lubrication chamber and radially, axial oilhole, radial direction oil hole communicates with described damping oil pocket, axially oilhole is towards the involute splines pair.
Have some oil grooves on described intermediate and the end face that described input block cooperates, this oil groove distributes on this end face radially.
A kind of water supply pump steam turbine high speed jigger device comprises driver, retarder, clutch that order connects, the rotor of the output coupled feed pump turbine of described clutch, and described clutch adopts above-mentioned self-synchronizing clutch.
The invention has the beneficial effects as follows:
The self-synchronizing clutch of above-mentioned structure satisfies the function of use of load request fully, is active in one's movements, accurately, and speed of response is fast, no hysteresis effect, and synchronism is good; Impact from, fashionable nothing, noise free, it is little, durable in use to wear and tear, the reliability height.With the water supply pump steam turbine high speed jigger device of this clutch equipment, Security is good.
Description of drawings
Fig. 1 is the structural drawing of this self-synchronizing clutch
Fig. 2 is the A-A view of Fig. 1
Fig. 3 is the B-B view of Fig. 1
Fig. 4 is a kind of structural representation of this water supply pump steam turbine high speed jigger device
Embodiment
Referring to Fig. 4: this water supply pump steam turbine high speed jigger device is made up of electric motor I, retarder II, self-synchronizing clutch III, and the output terminal of self-synchronizing clutch III connects the rotor of steam turbine IV, and the rotor of steam turbine IV connects feed water pump V.
Referring to Fig. 1, Fig. 2, Fig. 3: self-synchronizing clutch III mainly is made up of three parts, i.e. the input block 1 that links to each other with retarder II output shaft, the output block 7 that links to each other with steam turbine IV rotor, the intermediate 2 between input block 1, output block 7.
Intermediate 2 in a tubular form, its inwall is processed into involute internal helix spline tooth 11.Be processed with the involute splines tooth 12 of circumferential distribution on the outer wall, also have the ratchet that circumferentially distributes, constitute ratchet 8.
For guaranteeing that spline tooth 12,10 do not interfere when engaging-in, the number of teeth of spline tooth 12 should be the multiple of ratchet 8 numbers of teeth, and aligns with hook tooth.For ease of engaging-in, carry out tip relief in the engaging-in end of tooth.
When self-synchronizing clutch engagement and disconnecting process close to an end, for preventing that intermediate 2 and input block 1 from producing sharp impacts because of the difference of angular velocity, be equipped with buffering at the two ends of helical spline 9 in moving back damping oil pocket 17, in order to avoid intermediate 2 damages clutch with input block 1 sharp impacts.
The center of input block 1 has an axial lubrication chamber 15, has radial direction oil hole 16 to communicate with damping oil pocket 17, and the buffering damping is provided, and lubricating screw spline 9; End axis is arranged to oilhole 18, lead to spline tooth 12,10, lubricated to it.
In addition, lubricant oil forms oil film easily on the counterface of intermediate 2 and input block 1, this oil film has very strong adsorption force, make clutch separation not smooth, need very big active force just can tear oil film, in a single day oil film tears, and intermediate 2 axial motion speed are very fast, and its positioning spigot can produce end cap 13 and impact.Therefore, be provided with some oil grooves 19 on the counterface of intermediate 2 and input block 1, this oil groove 19 distributes on this end face radially.The effect of oil groove 19 has 2 points, and the one, during the clutch running, lubricant oil throws away at centrifugal action lower edge oil groove 19, is difficult for forming oil film.The 2nd, mating annular face is divided into the plurality of sector face, just can not form the large size oil film, reduce adsorption force, thereby the axial motion speed when reducing intermediate 2 and separating alleviates impact.
The assembling main points of self-synchronizing clutch are the adjustment of ratchet and pawl arrangement and the adjustment of torsion spring, when the assembling click, earlier with input block 1 and intermediate 2 spiral involute splined, then intermediate 2 is pushed in the output block 7, observe the engagement situation of involute splines pair and click, repair the length of ratchet binding end, make the gap unanimity of the secondary engaging tooth of involute splines both sides, with hand propulsion intermediate 2, should be able in involute splines, slide freely.Ratchet can rotate in locating stud flexibly, and the jam phenomenon must not be arranged.
The working procedure of this water supply pump steam turbine high speed jigger device:
When boot disk vehicle motor I, through retarder II transmission, the input block 1 of clutch begins to rotate, this moment, ratchet 5 contacted with hook tooth 8, make inside and outside involute splines tooth 9,11 alignment, the little moment of torsion that is provided by ratchet and pawl arrangement makes intermediate 2 axially move along the spiral involute spline, orders about inside and outside involute gear tooth 10,12 engagements, and drives output block 7 rotations.So far barring gear has been finished static input, and unit is in the jiggering state.After the unit red switch, when the rotating speed of clutch output block 7 has surmounted the rotating speed (being the jiggering rotating speed) of input block 1, intermediate 2 has been subjected to an opposing torque, this opposing torque orders about intermediate 2 and does a reversing motion along the spiral involute spline, make the outer involute tooth 12 on the intermediate 2 mesh with interior involute tooth 10 disengagings on the output block, barring gear is in the state of throwing away, unit operation.When unit is beaten gate stop-start, when rotating speed dropped to the jiggering rotating speed, the ratchet 5 on this moment output block 7 was owing to centrifugal force reduces to fall in the ratchet 8 on the intermediate 2, with ratchet engagement.Lag behind the moment of input block rotating speed when the rotating speed (being the rotating speed of rotor) of output block, the little torsional interaction that intermediate 2 is accepted ratchet and pawl arrangement and provided is done along the Turbo Flora keyway and is endwisely slipped, inside and outside involute gear tooth is meshed, and drive output block 7 rotates, finish the dynamic input of barring gear, unit enters the jiggering state.
Be worth pointing out, self-synchronizing clutch of the present invention is to invent in the process of research and development water supply pump steam turbine high speed jigger device, but its purposes never only only limits to water supply pump steam turbine high speed jigger device, and the running machinery that requires in other similar functions also can use.
Claims (7)
1. a self-synchronizing clutch comprises input block, output block and coupling mechanism thereof, it is characterized in that:
Described coupling mechanism comprises a tubulose intermediate, and the outer wall of this intermediate has the ratchet and the involute splines tooth of circumferential distribution, constitutes ratchet and involute outer spline respectively; The inwall of intermediate is the involute helical spline;
Described input block is a multidiameter shaft, has the section of cooperation with described intermediate, is the involute helical spline on the cylinder of this section, cooperates with the involute helical spline of described intermediate inwall;
Described output block in a tubular form, its inwall has the involute splines tooth of circumferential distribution, constitutes involute inner spline, the involute outer spline of the corresponding described intermediate of this internal spline;
The inwall of described output block also is provided with detent mechanism, the ratchet of the corresponding described intermediate of this detent mechanism.
2. self-synchronizing clutch according to claim 1 is characterized in that: described detent mechanism is made up of ratchet, pawl axis, torque spring, and described ratchet is assemblied on the described output block by pawl axis; Described torque spring is enclosed within on the described pawl axis, and an end of this torque spring withstands output block, and the other end withstands ratchet.
3. self-synchronizing clutch according to claim 1 is characterized in that: described input block has flange, and the inner side step of this flange constitutes the axially locating seam of described intermediate; The end face of the spiral involute splined shaft section of described input block is provided with end cap, and the diameter of this end cap forms an extension greater than splined shaft section; The inwall of described intermediate has the axially locating seam, and this seam cooperates with the extension of described end cap.
4. self-synchronizing clutch according to claim 1 is characterized in that: two sections of described involute helical spline are respectively equipped with the damping oil pocket.
5. self-synchronizing clutch according to claim 1 is characterized in that: described input block have an axial lubrication chamber and radially, axial oilhole, radial direction oil hole communicates with described damping oil pocket, axially oilhole is towards the involute splines pair.
6. self-synchronizing clutch according to claim 1 is characterized in that: have some oil grooves on described intermediate and the end face that described input block cooperates, this oil groove distributes on this end face radially.
7. water supply pump steam turbine high speed jigger device, comprise driver, retarder, clutch that order connects, the rotor of the output coupled feed pump turbine of described clutch is characterized in that: described clutch adopts the described self-synchronizing clutch of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710050278XA CN100526669C (en) | 2007-10-18 | 2007-10-18 | Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710050278XA CN100526669C (en) | 2007-10-18 | 2007-10-18 | Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144510A true CN101144510A (en) | 2008-03-19 |
| CN100526669C CN100526669C (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710050278XA Active CN100526669C (en) | 2007-10-18 | 2007-10-18 | Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same |
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| CN (1) | CN100526669C (en) |
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| CN102312928A (en) * | 2011-08-24 | 2012-01-11 | 重庆齿轮箱有限责任公司 | Spline lubricating structure |
| CN102465724A (en) * | 2010-11-05 | 2012-05-23 | 阿尔斯通技术有限公司 | Turning gear assembly for rotationally driving a shaft of a turbo-alternator set |
| CN102619888A (en) * | 2011-01-31 | 2012-08-01 | 华锐风电科技(集团)股份有限公司 | Motive power transmission connecting flange and wind power generator set |
| CN102636312A (en) * | 2012-04-27 | 2012-08-15 | 上海电气电站设备有限公司 | High-speed dynamic balance driving system and control method for large steam turbine rotor |
| CN103742561A (en) * | 2014-01-11 | 2014-04-23 | 中国船舶重工集团公司第七�三研究所 | Bi-directional oil damping structure of synchronous automatic clutch |
| CN104315040A (en) * | 2014-10-29 | 2015-01-28 | 中国船舶重工集团公司第七�三研究所 | Synchronous automatic clutch with high-speed pawl mechanism and low-speed pawl mechanism |
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| CN113187567A (en) * | 2021-05-11 | 2021-07-30 | 中国船舶重工集团公司第七0三研究所 | High-speed turning gear and method for gas turbine |
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| CN2931919Y (en) * | 2006-05-30 | 2007-08-08 | 邓烨 | Ratchet and ratchet pawl type overrunning clutch |
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| CN102465724A (en) * | 2010-11-05 | 2012-05-23 | 阿尔斯通技术有限公司 | Turning gear assembly for rotationally driving a shaft of a turbo-alternator set |
| CN102465725A (en) * | 2010-11-05 | 2012-05-23 | 阿尔斯通技术有限公司 | Barring gear assembly for driving in rotation a shaft of turbo-alternator group |
| CN102465725B (en) * | 2010-11-05 | 2016-01-20 | 阿尔斯通技术有限公司 | Drive the barring component that turbo-alternator generator unit shaft rotates |
| CN102619888A (en) * | 2011-01-31 | 2012-08-01 | 华锐风电科技(集团)股份有限公司 | Motive power transmission connecting flange and wind power generator set |
| CN102312928A (en) * | 2011-08-24 | 2012-01-11 | 重庆齿轮箱有限责任公司 | Spline lubricating structure |
| CN102636312A (en) * | 2012-04-27 | 2012-08-15 | 上海电气电站设备有限公司 | High-speed dynamic balance driving system and control method for large steam turbine rotor |
| CN103742561A (en) * | 2014-01-11 | 2014-04-23 | 中国船舶重工集团公司第七�三研究所 | Bi-directional oil damping structure of synchronous automatic clutch |
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| CN104315040A (en) * | 2014-10-29 | 2015-01-28 | 中国船舶重工集团公司第七�三研究所 | Synchronous automatic clutch with high-speed pawl mechanism and low-speed pawl mechanism |
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| CN106369069A (en) * | 2016-11-10 | 2017-02-01 | 中国船舶重工集团公司第七0三研究所 | Hydraulically controlled clutch used for turning gear |
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| CN114198426A (en) * | 2021-12-09 | 2022-03-18 | 中国船舶重工集团公司第七0三研究所 | Position locking type high-speed synchronous automatic clutch |
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