CN203430581U - Turning gear for hydraulic cylinder of steam turbine generator unit - Google Patents
Turning gear for hydraulic cylinder of steam turbine generator unit Download PDFInfo
- Publication number
- CN203430581U CN203430581U CN201320545350.7U CN201320545350U CN203430581U CN 203430581 U CN203430581 U CN 203430581U CN 201320545350 U CN201320545350 U CN 201320545350U CN 203430581 U CN203430581 U CN 203430581U
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- ratchet
- hydraulic cylinder
- turbo
- gear
- cylinder
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Abstract
The utility model relates to a turning gear for a hydraulic cylinder of a steam turbine generator unit. The turning gear comprises a bracket, an oil cylinder, a piston hinged shaft, a pawl shaft and a ratchet shaft, wherein the oil cylinder is obliquely arranged on the bracket through a cylinder tail bracket; the piston hinged shaft at the top end of the oil cylinder, the pawl shaft and the ratchet shaft are vertically connected with a force plate in sequence; and the pawl shaft is provided with pawls, two ends of the ratchet shaft are provided with a ratchet wheel and a turning gear, and the turning gear is connected with turning gear ring of a steam turbine gear train. The turning gear is novel in structural style, small in size, simple in operation and safe and reliable in application, and can realize the effect of making a rotor system of hundreds of tons of the steam turbine generator unit rotate along with the turning gear.
Description
Technical field:
The utility model relates to a kind of barring gear, more specifically relates to a kind of Turbo-generator Set oil hydraulic cylinder barring gear.
Background technique:
The installation of thermal power plant's Turbo-generator Set and maintenance process, need to coil moving axis system it is taken turns alignment, measures dynamic and static gaps, labyrinth clearance, rolling degree etc., wherein needs repeatedly to coil rotor and stop at any time rotor and rotate.Existing Turbo-generator Set is overhauled barring gear, mostly adopts the pattern of motor+speed reducer+gear+clutch, the pattern of the employing oil hydraulic motor+clutch+low-speed rolling bearing+high-speed slide bearing also having.Continuous increase along with unit capacity, required jiggering power is also increasing, for example, during 800MW turning gear of unit, 250 tons of rotor train deadweights more than, the rolling disc skiving circle thrust needing is up to 200kN, speed reducer is bulky, and some Turbo-generator Set are often restricted because laying maintenance barring gear place.Cost is very high for the driving mode of employing oil hydraulic motor.
Model utility content:
The purpose of this utility model is to provide a kind of Turbo-generator Set oil hydraulic cylinder barring gear, this apparatus structure novel form, and volume is little, simple to operate, safe and reliable.
For achieving the above object, the utility model is by the following technical solutions: a kind of Turbo-generator Set oil hydraulic cylinder barring gear, described device comprise support, the oil cylinder being connected with described support by the cylinder tail support arranging perpendicular to described support, successively with force transmitting board described oil cylinder connected vertically top piston hinge, pawl axis, ratchet shaft; Described pawl axis is provided with ratchet, and described ratchet shaft two ends are provided with ratchet and jiggering gear, and described jiggering gear is connected with the jiggering gear ring of steam turbine train.
A kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, described ratchet comprises forward ratchet and reversion ratchet; Described forward ratchet top is connected with described pawl axis respectively with reversion ratchet top, and described forward ratchet pawl end is connected with described ratchet respectively with described reversion ratchet pawl end.
A kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, described forward ratchet and reversion ratchet are equipped with the position limit pin perpendicular to described force transmitting board.
Another preferred a kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, described ratchet shaft is respectively and between described ratchet and jiggering gear, be provided with key 1 and key 2; 2 one-tenth an angle of 90 degrees of described key 1 and key.
The preferred a kind of Turbo-generator Set oil hydraulic cylinder barring gear again that the utility model provides, described ratchet and jiggering gear outside are equipped with ratchet shaft support, described ratchet shaft support is connected with described ratchet shaft by the hole at its center, and described ratchet shaft frame bottom is connected with described support vertical by bolt.
Another preferred a kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, is provided with pad between described ratchet shaft support and described support.
Another preferred a kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, the cylinder tail hinge that described oil cylinder is provided with by described cylinder tail cantilever tip is connected with described cylinder tail support.
Another preferred a kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, described forward ratchet top is provided with two grooves and is provided with hole perpendicular to its axial direction along its axial direction; Described reversion ratchet top is provided with the groove mating with described forward detent recess and is provided with hole perpendicular to its axial direction along its axial direction.
Another preferred a kind of Turbo-generator Set oil hydraulic cylinder barring gear that the utility model provides, described force transmitting board is that two identical planks are separately positioned in the groove of described forward ratchet top.
With immediate prior art ratio, the invention provides technological scheme and there is following excellent effect:
1, apparatus structure novel form of the present utility model, volume is little, simple to operate, safe and reliable, and the positive and negative rotating disk of having realized hundreds of tons of trains is moving, and simple in structure, cost is low;
2, in the utility model, the proportion design due to oil cylinder stroke-ratchet-ratchet has been retained gap, axle is tied up in the moving process of dish, central position is not subject to the impact of jiggering gear engagement, under static state in free and stable position, required precision in the time of can reaching unit installation and repairing, can stop at any time train and rotate, reversion realizes easily;
When the jiggering power that 3, the utility model mid-game skiving wheel needs increases (such as 1000MW unit), can increase oil cylinder cylinder diameter or charge oil pressure;
4, device versatility of the present utility model is good, and changing a jiggering gear and support, just to go for the dish of all rotor of turbogenerator set systems moving;
5, low to the oil cylinder of adapted and pumping plant requirement in the utility model, oil cylinder can select the hinged level in two to use standard engineering cylinder, and pumping plant can share with other hydraulic equipments.
Accompanying drawing explanation
Fig. 1 is the utility model apparatus structure schematic diagram;
Fig. 2 is the utility model device plan view;
Fig. 3 is model utility device left view;
Fig. 4 is the utility model forward and backward pawl structures schematic diagram;
Wherein, 1-oil cylinder, 2-piston hinge, 3-force transmitting board, 4-pawl axis, 5-forward ratchet, 6-ratchet, 7-ratchet shaft, 8-jiggering gear, 9-jiggering gear ring, the 10-ratchet that reverses, 11-position limit pin, 12-ratchet shaft support, 13-support, 14-cylinder tail support, 15-cylinder tail hinge.
Embodiment
Below in conjunction with embodiment, model utility is described in further detail.
Embodiment 1:
As Figure 1-4, the cylinder barring gear of this routine model utility comprise support 13, the oil cylinder 1 being connected with described support 13 by the cylinder tail support 14 being vertically set on described support 13, successively with force transmitting board 3 described oil cylinder 1 top piston hinge 2 connected vertically, pawl axis 4, ratchet shaft 7; Described pawl axis 7 is provided with ratchet, and described ratchet shaft 7 two ends are provided with ratchet 6 and jiggering gear 8, and described jiggering gear 8 is connected with the jiggering gear ring 9 of steam turbine train.
Described ratchet comprises forward ratchet 5 and reversion ratchet 10; Described forward ratchet 5 tops are connected with described pawl axis 7 respectively with reversion ratchet 10 tops, and described forward ratchet 5 pawl ends are connected with described ratchet 6 respectively with described reversion ratchet 10 pawl ends.Described forward ratchet 5 tops are provided with two grooves and are provided with hole perpendicular to its axial direction along its axial direction; Described reversion ratchet 10 tops are provided with the groove mating with described forward ratchet 5 grooves and are provided with hole perpendicular to its axial direction along its axial direction.Described force transmitting board 3 is that two identical planks are separately positioned in described forward ratchet 5 top grooves.
Described forward ratchet 5 and reversion ratchet 10 are equipped with the position limit pin 11 perpendicular to described force transmitting board 3.
Described ratchet shaft 7 respectively and described ratchet 6 and 8 of jiggering gears be provided with key 1 and key 2; 2 one-tenth an angle of 90 degrees of described key 1 and key.Described ratchet 6 and jiggering gear 8 outsides are equipped with ratchet shaft support 12, and described ratchet shaft support 12 is connected with described ratchet shaft 7 by the hole at its center, and described ratchet shaft support 12 bottoms are by bolt and described vertical connection of support 13.13, described ratchet shaft support 12 and described support are provided with pad.
The cylinder tail hinge 15 that described oil cylinder 1 is provided with by described cylinder tail support 14 tops is connected with described cylinder tail support 14.
This device implementation procedure is: the piston on oil cylinder 1 top stretches out, piston hinge 2 promotes power transmission and pulls 3 around an angle of ratchet shaft 7 rotations, drive pawl axis 4 to promote to push away before forward ratchet 5, promote ratchet 6 and turn over equal angular, ratchet 6 drives ratchet shaft 7 to rotate by key, by key band barring gear 8, rotate again, jiggering gear 8 meshes with the jiggering gear ring 9 of steam turbine train, drives rotor of turbogenerator set system to rotate.During piston-retraction, forward ratchet 5 falls back on next tooth, and oil cylinder 1 does not stop to stretch, and train is coiled.Reversion ratchet 10 coaxially arranges with forward ratchet 5, for inverted plate driving wheel system, during forward, with position limit pin 11, lifts.Ratchet shaft support 12 supports ratchet shafts 7, and by 13, support, on stator scaffold, cylinder tail support 14 is hinged on oil cylinder 1 on support 13.
This device is provided with pad at ratchet shaft support 12 and support 13 junction planes, the engagement size with adjustment disk skiving wheel with rotor of turbogenerator set system disk skiving circle.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of this claim scope.
Claims (9)
1. a Turbo-generator Set oil hydraulic cylinder barring gear, is characterized in that: described device comprise support, the oil cylinder being connected with described support by the cylinder tail support arranging perpendicular to described support, successively with force transmitting board described oil cylinder connected vertically top piston hinge, pawl axis, ratchet shaft; Described pawl axis is provided with ratchet, and described ratchet shaft two ends are provided with ratchet and jiggering gear, and described jiggering gear is connected with the jiggering gear ring of steam turbine train.
2. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 1, is characterized in that: described ratchet comprises forward ratchet and reversion ratchet; Described forward ratchet top is connected with described pawl axis respectively with reversion ratchet top, and described forward ratchet pawl end is connected with described ratchet respectively with described reversion ratchet pawl end.
3. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 2, is characterized in that: described forward ratchet and reversion ratchet are equipped with the position limit pin perpendicular to described force transmitting board.
4. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 1, is characterized in that: described ratchet shaft respectively and between described ratchet and jiggering gear, be provided with key 1 and key 2; 2 one-tenth an angle of 90 degrees of described key 1 and key.
5. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 1, it is characterized in that: described ratchet and jiggering gear outside are equipped with ratchet shaft support, described ratchet shaft support is connected with described ratchet shaft by the hole at its center, and described ratchet shaft frame bottom is connected with described support vertical by bolt.
6. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 5, is characterized in that: between described ratchet shaft support and described support, be provided with pad.
7. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 1, is characterized in that: the cylinder tail hinge that described oil cylinder is provided with by described cylinder tail cantilever tip is connected with described cylinder tail support.
8. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 3, is characterized in that: described forward ratchet top is provided with two grooves and is provided with hole perpendicular to its axial direction along its axial direction; Described reversion ratchet top is provided with the groove mating with described forward detent recess and is provided with hole perpendicular to its axial direction along its axial direction.
9. a kind of Turbo-generator Set oil hydraulic cylinder barring gear as claimed in claim 8, is characterized in that: described force transmitting board is that two identical planks are separately positioned in the groove of described forward ratchet top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545350.7U CN203430581U (en) | 2013-09-03 | 2013-09-03 | Turning gear for hydraulic cylinder of steam turbine generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545350.7U CN203430581U (en) | 2013-09-03 | 2013-09-03 | Turning gear for hydraulic cylinder of steam turbine generator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430581U true CN203430581U (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320545350.7U Expired - Lifetime CN203430581U (en) | 2013-09-03 | 2013-09-03 | Turning gear for hydraulic cylinder of steam turbine generator unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470321A (en) * | 2013-09-03 | 2013-12-25 | 国家电网公司 | Hydraulic cylinder turning gear of steam turbine generator unit |
-
2013
- 2013-09-03 CN CN201320545350.7U patent/CN203430581U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470321A (en) * | 2013-09-03 | 2013-12-25 | 国家电网公司 | Hydraulic cylinder turning gear of steam turbine generator unit |
| CN103470321B (en) * | 2013-09-03 | 2015-04-01 | 国家电网公司 | Hydraulic cylinder turning gear of steam turbine generator unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |