CN101943035A - Turning unit - Google Patents
Turning unit Download PDFInfo
- Publication number
- CN101943035A CN101943035A CN2010105098614A CN201010509861A CN101943035A CN 101943035 A CN101943035 A CN 101943035A CN 2010105098614 A CN2010105098614 A CN 2010105098614A CN 201010509861 A CN201010509861 A CN 201010509861A CN 101943035 A CN101943035 A CN 101943035A
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- gear
- jiggering
- gearwheel
- leading screw
- turning
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Abstract
The invention discloses a turning unit of which a turning gear can be automatically separated from a bull gear on a main shaft. The turning unit comprises the turning gear connected with a driving device by a reducer, wherein a gear shaft of the turning gear is a threaded shaft parallel to the main shaft, and the turning gear and the threaded shaft form a rotatable screw rod/movable nut slide helical structure; and one end surface of the turning gear is a helical slope of 360 degrees, the turning direction of the helical slope is the same with that of the threaded shaft, a step surface is formed between the start point and the end point of the helical slope, a spacing block is arranged in the radial direction of the turning gear in a position corresponding to the step surface, a gap is left between the other end surface of the turning gear and the end surface of the bull gear, the gap is less than the thread pitch of the threaded shaft, and one side of the flat end surface is provided with a spacing shoulder of the turning gear. By delicately using the slide helical structure, the invention realizes that the turning gear can be separated from and meshed with the bull gear, and is especially suitable for turning the main shaft of varieties of large heat energy machinery.
Description
Technical field
The present invention relates to a kind of barring gear, the main shaft in especially a kind of turbine engine or the like thermo-mechanical machine is shut down the barring gear of usefulness.
Background technique
In the thermo-mechanical machines such as turbine engine, main shaft will keep main shaft to slowly run a period of time, to prevent the main shaft bending after shutting down.The at present main still artificial jiggering mode that adopts is equipped with the gearwheel that jiggering is used on the main shaft, make its rotation by ripping bar etc., speed is 11-12 rev/min, after half an hour, changes 180 ° in 5 minutes at interval continuously, generally need 2-4 days, just can stop jiggering after reaching normal temperature.
For reducing manpower, automatic barring gear has appearred, existing automatic barring gear mainly comprises the motor that is in transmission connection, retarder, clutch and the jiggering gear of large speed ratio, gearwheel engagement on jiggering gear and the main shaft by the start and stop of control motor, realizes auto-barring, after main shaft work, throw-out-of clutch, the jiggering gear rotates in company with main shaft, expend certain power.
Summary of the invention
For the deficiency that the jiggering gear that overcomes existing barring gear can not separate with the gearwheel on the main shaft, technical problem to be solved by this invention provides the barring gear that a kind of jiggering gear energy gearwheel automatic and on the main shaft separates.
The technical solution adopted for the present invention to solve the technical problems is: barring gear, comprise the jiggering gear that is connected with drive unit by retarder, and be arranged on gearwheel on the main shaft, has corresponding outer gearing relation between jiggering gear and the described gearwheel, the gear shaft of described jiggering gear is to be parallel to the leading screw that main shaft is provided with, jiggering gear and described leading screw constitute the slip screw that screw rod rotation, nut are moved, and are provided with the jiggering gear shaft to limit structure in the end point of travel that jiggering gear and gearwheel mesh a side.
One of them end face of described jiggering gear is a step end face, its spiral that is shaped as 360 ° is domatic, the domatic rotation direction of described spiral is identical with the rotation direction of leading screw, form step surface between the domatic Origin And Destination of described spiral, another end face is the planar end surface near gearwheel, is provided with along the limiting stopper of jiggering gear radial arrangement in the position corresponding to described step surface.
Gap between the planar end surface of described jiggering gear and the end face of described gearwheel is less than the pitch of described leading screw.
Described jiggering gear shaft is the spacing shaft shoulder that is arranged on the leading screw to limit structure.
Be connected with clutch between described leading screw and the retarder.
Described clutch is a free wheel device.
The invention has the beneficial effects as follows: the gear shaft of jiggering gear is made leading screw, utilize drive unit to drive the leading screw rotation, realize the automatic engagement of the gearwheel on jiggering gear and the main shaft, after the engagement, can utilize the start and stop of drive unit to realize jiggering control; After the main shaft active rotation, the jiggering gear will oppositely be return along leading screw under the gearwheel effect automatically, be suitable for using when all kinds of huge revolving main shafts are shut down.
Description of drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is the partial enlarged drawing of I portion among Fig. 1.
Fig. 3 is the plan view of jiggering gear.
Fig. 4 is the left view of Fig. 3.
Be labeled as 1-positioning ring, 2-driving gear, 3-flat key, 4-radial bearing among the figure, the 5-seal washer, 6-flat key, 7-driving gear, 8-gear shaft, 9-retainer nut, the 10-circlip for shaft, the 11-woodruff key, 12-adjusts pad, the 14-retarder, 15-clutch, 16-bearing housing, 17-jiggering gear, the 18-gearwheel, 19-leading screw, 20-limiting stopper, 21-step end face, the 22-planar end surface, 23-step surface, the spacing shaft shoulder of 24-, the domatic lift angle of θ-spiral.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, barring gear of the present invention comprises the jiggering gear 17 that is connected with drive unit by retarder 14, and be arranged on gearwheel 18 on the main shaft, has corresponding outer gearing relation between jiggering gear 17 and the described gearwheel 18, the gear shaft of described jiggering gear 17 is to be parallel to the leading screw 19 that main shaft is provided with, jiggering gear 17 constitutes the slip screw that screw rod rotates, nut moves with described leading screw 19, and is provided with the jiggering gear shaft to limit structure in jiggering gear 17 and the end point of travel that gearwheel 18 meshes a side.When start once more, after main shaft began active rotation, jiggering gear 17 rotated in company with main shaft as follower, because leading screw 19 is static, jiggering gear 17 will oppositely be return until breaking away from gearwheel 18 gradually because of the rotation of himself, will stop operating under the resistance of air effect after the disengaging.And barring gear be will open the jiggering function time, can be manually with jiggering gear 17 and gearwheel 18 engagement contrapositions.
Engagement contraposition during for convenient jiggering next time, one of them end face of described jiggering gear 17 is a step end face 21, its spiral that is shaped as 360 ° is domatic, the domatic rotation direction of described spiral is identical with the rotation direction of leading screw 19, form step surface 23 between the domatic Origin And Destination of described spiral, another end face is the planar end surface 22 near gearwheel 18, is provided with along the limiting stopper 20 of jiggering gear 17 radial arrangement in the position corresponding to described step surface 23.When the needs jiggering, drive unit starts, drive leading screw 19 rotations, because limiting stopper 20 has limited the rotation of jiggering gear 17, jiggering gear 17 will move to gearwheel 18 directions along leading screw 19 when leading screw 19 rotations, realize engagement automatically, and ought start shooting once more, after main shaft begins active rotation, jiggering gear 17 will oppositely return to original position gradually because of the rotation of himself: the domatic starting point of the spiral of step end face 21 arrived the position of limiting stopper 20 before this, when the domatic terminal point of the spiral of step end face 21 that is step surface 23 arrive the position of limiting stoppers 20, jiggering gear 17 will break away from gearwheel 18 fully and stop operating fully and displacement, realize static fast.
For improving the reliability of engagement, described jiggering gear 17 is when off working state, gap between the end face of its planar end surface 22 and described gearwheel 18 is less than the pitch of described leading screw 19, enter between two end faces of gearwheel 18 when planar end surface 22 after, jiggering gear 17 and gearwheel 18 engagements, under the restriction of gearwheel 18, continue to move and break away from the limit rotation of limiting stopper 20, planar end surface 22 1 terminations until jiggering gear 17 contact position-limited shaft shoulder 24, after this, jiggering gear 17 will be followed leading screw 19 and together be rotated, and, realize the jiggering function as 18 rotations of driving wheel drive gearwheel.
For avoiding when the jiggering being preferably between described leading screw 19 and the retarder 14 and being connected with clutch 15 because of the damage of the unexpected main shaft start causing of misoperation barring gear.
Described clutch 15 is preferably free wheel device.
Embodiment:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, barring gear of the present invention comprises the retarder 14 that is connected with motor, bearing housing 16, retarder 14 is by driving gear 2,7 gear pairs that constitute are connected to clutch 15, clutch 15 is connected with leading screw 19, the two all is positioned at bearing housing 16, leading screw 19 is as the gear shaft of jiggering gear 17, jiggering gear 17 constitutes the screw rod rotation with described leading screw 19, the slip screw that nut moves, has corresponding outer gearing relation between jiggering gear 17 and the described gearwheel 18, one of them end face of jiggering gear 17 is a step end face 21, its spiral that is shaped as 360 ° is domatic, the domatic rotation direction of described spiral is identical with the rotation direction of leading screw 19, form step surface 23 between the domatic Origin And Destination of described spiral, another end face is the planar end surface 22 near gearwheel 18, be provided with along the limiting stopper 20 of jiggering gear 17 radial arrangement in position corresponding to described step surface 23, place corresponding to planar end surface 22 positions under the jiggering state on the leading screw 19 is provided with spacing shoulder block 24, when the needs jiggering, drive unit starts, drive leading screw 19 rotations, jiggering gear 17 moves and meshes with gearwheel 18 to gearwheel 18 directions along leading screw 19, realizes the jiggering function.When main shaft rotated, jiggering gear 17 oppositely returned to limiting stopper 20 and step surface 23 relative position contacting along leading screw 19.
Claims (6)
1. barring gear, comprise the jiggering gear (17) that is connected with drive unit by retarder (14), and be arranged on gearwheel (18) on the main shaft, has corresponding outer gearing relation between jiggering gear (17) and the described gearwheel (18), it is characterized in that: the gear shaft of described jiggering gear (17) is to be parallel to the leading screw (19) that main shaft is provided with, jiggering gear (17) constitutes the screw rod rotation with described leading screw (19), the slip screw that nut moves, and be provided with the jiggering gear shaft to limit structure in the end point of travel of jiggering gear (17) and gearwheel (18) engagement one side.
2. barring gear as claimed in claim 1, it is characterized in that: one of them end face of described jiggering gear (17) is step end face (21), its spiral that is shaped as 360 ° is domatic, the domatic rotation direction of described spiral is identical with the rotation direction of leading screw (19), form step surface (23) between the domatic Origin And Destination of described spiral, another end face is the planar end surface (22) near gearwheel (18), is provided with along the limiting stopper (20) of jiggering gear (17) radial arrangement in the position corresponding to described step surface (23).
3. barring gear as claimed in claim 2 is characterized in that: the gap between the end face of described planar end surface (22) and described gearwheel (18) is less than the pitch of described leading screw (19).
4. barring gear as claimed in claim 1 is characterized in that: described jiggering gear shaft is the spacing shaft shoulder (24) that is arranged on the leading screw (19) to limit structure.
5. as any described barring gear of claim in the claim 1～4, it is characterized in that: be connected with clutch (15) between described leading screw (19) and the retarder (14).
6. barring gear as claimed in claim 5 is characterized in that: described clutch (15) is a free wheel device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010509861 CN101943035B (en) | 2010-10-18 | 2010-10-18 | Turning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010509861 CN101943035B (en) | 2010-10-18 | 2010-10-18 | Turning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943035A true CN101943035A (en) | 2011-01-12 |
| CN101943035B CN101943035B (en) | 2013-10-02 |
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ID=43435213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010509861 Expired - Fee Related CN101943035B (en) | 2010-10-18 | 2010-10-18 | Turning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101943035B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194199A (en) * | 2018-03-14 | 2018-06-22 | 山东交通学院 | A kind of marine main engine turning engine |
| CN108223127A (en) * | 2018-03-14 | 2018-06-29 | 山东交通学院 | A kind of modified marine main engine electric barring machine |
| CN108679124A (en) * | 2018-08-15 | 2018-10-19 | 尤洛卡（山东）矿业科技有限公司 | A kind of speed reducer and its brake |
| CN109386322A (en) * | 2018-10-15 | 2019-02-26 | 青岛捷能汽轮机集团股份有限公司 | A kind of automatic barring gear and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317606A (en) * | 2001-04-24 | 2002-10-31 | Mitsubishi Heavy Ind Ltd | Turning device of rotating machine |
| CN2780999Y (en) * | 2005-04-21 | 2006-05-17 | 王智 | Barring gear |
| CN2926675Y (en) * | 2006-06-14 | 2007-07-25 | 嘉兴爱克斯机械技术有限公司 | Electric coil apparatus |
| CN101234525A (en) * | 2008-03-11 | 2008-08-06 | 大连橡胶塑料机械股份有限公司 | Extruding machine jigger starting device |
| CA2695635A1 (en) * | 2007-08-15 | 2009-03-12 | General Electric Company | Manual core rotation device |
| CN101787905A (en) * | 2010-04-12 | 2010-07-28 | 杭州汽轮机股份有限公司 | Safe extracting device for electric barring gear |
| CN201851181U (en) * | 2010-10-18 | 2011-06-01 | 德阳东方数控科技有限公司 | Turning device |
-
2010
- 2010-10-18 CN CN 201010509861 patent/CN101943035B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317606A (en) * | 2001-04-24 | 2002-10-31 | Mitsubishi Heavy Ind Ltd | Turning device of rotating machine |
| CN2780999Y (en) * | 2005-04-21 | 2006-05-17 | 王智 | Barring gear |
| CN2926675Y (en) * | 2006-06-14 | 2007-07-25 | 嘉兴爱克斯机械技术有限公司 | Electric coil apparatus |
| CA2695635A1 (en) * | 2007-08-15 | 2009-03-12 | General Electric Company | Manual core rotation device |
| CN101234525A (en) * | 2008-03-11 | 2008-08-06 | 大连橡胶塑料机械股份有限公司 | Extruding machine jigger starting device |
| CN101787905A (en) * | 2010-04-12 | 2010-07-28 | 杭州汽轮机股份有限公司 | Safe extracting device for electric barring gear |
| CN201851181U (en) * | 2010-10-18 | 2011-06-01 | 德阳东方数控科技有限公司 | Turning device |
Non-Patent Citations (1)
| Title |
|---|
| 《中国电力百科全书》编辑委员会等: "《中国电力百科全书 火力发电卷》", 31 January 2001, 中国电力出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194199A (en) * | 2018-03-14 | 2018-06-22 | 山东交通学院 | A kind of marine main engine turning engine |
| CN108223127A (en) * | 2018-03-14 | 2018-06-29 | 山东交通学院 | A kind of modified marine main engine electric barring machine |
| CN108194199B (en) * | 2018-03-14 | 2023-04-18 | 山东交通学院 | Marine main engine turning machine |
| CN108679124A (en) * | 2018-08-15 | 2018-10-19 | 尤洛卡（山东）矿业科技有限公司 | A kind of speed reducer and its brake |
| CN108679124B (en) * | 2018-08-15 | 2024-05-17 | 尤洛卡（山东）矿业科技有限公司 | Speed reducer and brake thereof |
| CN109386322A (en) * | 2018-10-15 | 2019-02-26 | 青岛捷能汽轮机集团股份有限公司 | A kind of automatic barring gear and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101943035B (en) | 2013-10-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20141018 |
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| EXPY | Termination of patent right or utility model |