CN202212857U - Steam turbine switching valve grinding device - Google Patents
Steam turbine switching valve grinding device Download PDFInfo
- Publication number
- CN202212857U CN202212857U CN2011202809402U CN201120280940U CN202212857U CN 202212857 U CN202212857 U CN 202212857U CN 2011202809402 U CN2011202809402 U CN 2011202809402U CN 201120280940 U CN201120280940 U CN 201120280940U CN 202212857 U CN202212857 U CN 202212857U
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- CN
- China
- Prior art keywords
- steam turbine
- tumbler
- valve casing
- valve spool
- spool
- 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 - Lifetime
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model provides a steam turbine switching valve grinding device, which comprises a fixing device for a valve casing, a tightening device for a tapered valve spool, a rotating device for the tapered valve spool and a power source for the tapered valve spool. The valve casing is fixed onto a base of the grinding device through the fixing device for the valve casing, the tightening device is arranged at the bottom of the tapered valve spool to tighten the central axis of the tapered valve spool, the rotating device is fixedly connected to the top of the tapered valve spool, a rotating center of the rotating device corresponds to the central axis of the tapered valve spool, and the rotating device is connected with a power output end of the power source and provided with a rotating pair. The grinding device no longer consumes a large amount of manpower and labor for grinding, grinding can be completed only by starting and stopping a motor, labor is liberated, efficiency is greatly improved, and the purpose of saving cost is achieved. Mechanical grinding is adopted, and boron carbide is added to contact surfaces, so that fineness and sealing pressure of the valve casing and the tapered valve spool can meet allowable requirements, the sealing test pressure of a switching valve can reach 1Mpa, and the grinding device is easy for large-scale popularization and use.
Description
Technical field
The utility model relates to steam turbine processing and manufacturing field, specifically is a kind of special tooling when the steam turbine transfer valve is ground.
Background technology
At present, for the grinding of steam turbine transfer valve, the general method that adopts is: at first valve casing is fixed, had the manual promotion of workman to place the middle tapering spool rotation of valve casing then, thereby grind with valve body.This process need 8 people work simultaneously, 4 days consuming time ability is accomplished, and are that a kind of machinery work, process of repeatability is very uninteresting, and very consuming time, consumption power, and efficient is very low, waste of manpower resource and material resources.And because 8 different working personnel grind it, repeatability is relatively poor, make on valve casing and the tapering spool contact-making surface fineness inadequately, sealing load do not reach requirement allowable.
Summary of the invention
The purpose of the utility model is: the mechanical automatics that provides a kind of steam turbine transfer valve to grind.
The technical scheme that the utility model adopted is:
A kind of steam turbine transfer valve lapping device; The fixture that comprises valve casing; The holding device of tapering spool, tumbler and power source thereof, said valve casing are fixed on through its fixture on the base of lapping device, and holding device is arranged on tapering spool bottom, holds out against its central shaft position; Tumbler is fixedly connected the top of tapering spool, the central shaft of the corresponding tapering spool of its center of rotation, and tumbler is connected with the clutch end of power source, has and its revolute pair of rotating synchronously.
Be provided with transmission device between the clutch end of said tumbler and power source, this transmission device can be one or more combination of shaft coupling transmission device, belt drive unit, Worm and Worm Gear Driving device, sprocket transmission device, gear drive.
Said fixture is a pressing plate, and pressing plate acts on the valve casing outside downwards, is fixedly connected base through securing member, and the correspondence position on pressing plate and the base is provided with the installing hole of securing member.
Said holding device be one adjustable top, it holds out against the corresponding tapering spool of end bottom centre, upwards effect.
The power source of said tumbler is a motor.
Said motor is provided with stepless speed adjusting gear.
Be filled with boron carbide in the space between said tapering spool and the valve casing.
The beneficial effect that the utility model reached is:
The utility model is designed a kind of mechanical steam turbine transfer valve lapping device; No longer need labor manpower and muscle power in this work, only need to accomplish, liberate the labour motor operation start and stop action; Raise the efficiency greatly, reach the purpose of practicing thrift cost.Mechanical lapping but also on contact-making surface, add boron carbide makes fineness and the sealing load of valve casing and tapering spool reach and can both reach requirement allowable that the test sealing load of transfer valve can reach 1Mpa, is easy to large-scale promotion and use.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Label is represented among the figure: 1-swivel head, 2-by movable sprocket, 3-transmission square shaft, 4-driving chain, 5-drive sprocket, 6-rotating seat, 7-power transmission shaft, 8-column, 9-stepless speed adjusting gear, 10-belt pulley, 11-motor, 12-V belt, 13-worm screw, 14-worm gear, 15-reductor, that 16-is adjustable is top, 17-base, 18-pressing plate, 19-sealing surface, 20-tapering spool, 21-valve casing, 22-adpting flange.
The specific embodiment
As shown in Figure 1, the utility model is a kind of steam turbine transfer valve lapping device, comprises the fixture of valve casing 21, holding device, tumbler and the power source thereof of tapering spool 20.
The fixture of valve casing 21 is block pressur plates 18; Pressing plate 18 acts on the boss on valve casing 21 outside, bottom surface downwards; Be fixedly connected the base 17 of the lapping device that the utility model proposes through securing member, boss on pressing plate 18 outside, bottom surface and the correspondence position on the base 17 are provided with the installing hole of securing member.Securing member in this specific embodiment can be threaded fastener, rivet or the like.
Tapering spool 20 is provided with holding device and tumbler.Holding device be one adjustable top 16, be arranged on the base 17 of tapering spool 20 bottoms, and it holds out against the center of the corresponding tapering spool of end 20 bottoms, upwards effect, its elasticity is adjustable.Promptly this adjustable top 16 upwards hold out against tapering spool 20 the central shaft position, an end relative position of tapering spool 20 is fixed.Tumbler comprises flange 22 and turning cylinder, and adpting flange 22 is fixedly connected the central shaft of central shaft and tapering spool 20 of top, adpting flange 22 of tapering spool 20 on a straight line through securing member.Turning cylinder is fixedly mounted on the top center position of adpting flange 22, and promptly turning cylinder is arranged on the central shaft of tapering spool 20, and this turning cylinder is connected with the clutch end of power source, has and its revolute pair of rotating synchronously.
The power source of tumbler is a motor 11, and this motor 11 is provided with stepless speed adjusting gear 9, the rotary state of the clutch end of adjusting motor 11.
If the clutch end of motor 11 is power output shafts of motor 11, the power output shaft of this motor 11 directly is exactly the turning cylinder of tumbler, and then both can not need transmission device, and the line shaft of motor 11 directly drives tapering spool 20 and rotates.
Under other situation, be provided with transmission device between the clutch end of the turning cylinder of tumbler and motor 11, this transmission device is confirmed according to the installation site of motor 11:
If motor 11 is installed in directly over the top of turning cylinder and the line shaft of the turning cylinder of tumbler and motor 11 on a straight line, both can pass through the shaft coupling transmission device, promptly through two thes tip of the axis of coupling band socket, reach the effect of synchronous rotation.
If motor 11 is installed in other positions; Transmission between the power output shaft of the turning cylinder of tumbler and motor 11 need change the position and the height of rotation direction, transmission, then can be through being that one or more combination of shaft coupling transmission device, belt drive unit, Worm and Worm Gear Driving device, sprocket transmission device, gear drive realizes.
In this specific embodiment; Motor 11 is fixedly mounted on the base 17; The power output shaft of motor 11 is horizontally set on the side of tapering spool 20, i.e. the initial rotation state of motor 11 outputs is the rotations in the perpendicular, this drive state is delivered on the tapering spool 20; Need to change the position and the height of rotation direction, transmission, can adopt the combination of multiple transmission device.As shown in the figure; The rotor shaft of motor 11 is connected to the turning cylinder of tumbler through 5 transmission devices, specifically is successively: the shaft coupling transmission device shaft coupling transmission device that is provided with on sprocket transmission device that is provided with on the shaft coupling transmission device that is provided with on the Worm and Worm Gear Driving device that is provided with on the pulley gear that is provided with on the X-direction, the X-Z direction of principal axis, the Z-direction, the X-direction and the Z-direction.Introduce in detail below: socket is fixed with a belt pulley 10-1 on the rotor shaft of motor 11; This belt pulley 10-1 connects belt pulley 10-2 through V belt 12; Belt pulley 10-2 also is arranged on the base 17; Apart from inboard one segment distance of motor 11, this pulley gear is moved horizontally to another position on the base 17 with the rotary state on the perpendicular; Be fixedly connected with a worm gear 14, worm screw 13 that vertically is provided with of worm gear 14 connections on the vertical end face of belt pulley 10-2; This Worm and Worm Gear Driving device has changed 90 ° with the direction of torque; Rotary state on the perpendicular is changed into the rotation on the horizontal plane; And be provided with reductor 15 between this worm screw 13 and the turbine 14, make stable drive, the rotating speed adjustable of worm screw 14; Worm screw 13 sockets are fixed on the bottom of a power transmission shaft 7 that vertically is provided with, and power transmission shaft 7 is arranged in the column 8 through rotating seat 6, and this shaft coupling transmission device vertically moves to the rotary state on the horizontal plane top of column 8; The top of power transmission shaft 7 is fixedly connected with a drive sprocket 5, this drive sprocket 5 connects by movable sprocket 2 through horizontally disposed driving chain 4, and this sprocket transmission device is moved horizontally to the rotary state on the horizontal plane by on the movable sprocket 2; Fixedly sleeved on transmission square shaft 3 by movable sprocket 2 through swivel head 1; Transmission square shaft 3 is fixedly connected the turning cylinder of tumbler through shaft coupling; This shaft coupling transmission device is passed to the turning cylinder of tumbler with the rotary state on the horizontal plane, accomplishes the transmission of rotation with this.
Thereby make tapering spool 20 under the driving of tumbler, horizontally rotate along the center line of tapering spool 20, valve casing 21 is fixed, causes the mutual grinding of contact-making surface between tapering spool 20 and the valve casing 21 with this.
If the fineness on valve casing 21 and tapering spool 20 contact-making surfaces is not enough; Perhaps tapering spool 20 can't combine with valve casing 21 fully; Tapering spool 20 is inserted valve casing 21 backs, meeting a little more than several millimeters at valve casing 21 tops at this moment, thereby does not reach required sealing load 1mpa.At this moment, can fill some boron carbide powders earlier in the space of the sealing surface 19 between tapering spool 20 and valve casing 21, re-use this lapping device and grind, make fineness of the two and sealing load all reach requirement.
Claims (7)
1. steam turbine transfer valve lapping device; The fixture that comprises valve casing; The holding device of tapering spool, tumbler and power source thereof; It is characterized in that: said valve casing is fixed on the base of lapping device through its fixture; Holding device is arranged on tapering spool bottom, holds out against its central shaft position, and tumbler is fixedly connected the top of tapering spool, the central shaft of the corresponding tapering spool of its center of rotation, and tumbler is connected with the clutch end of power source, has and its revolute pair of rotating synchronously.
2. steam turbine transfer valve lapping device according to claim 1; It is characterized in that: be provided with transmission device between the clutch end of said tumbler and power source, this transmission device can be one or more combination of shaft coupling transmission device, belt drive unit, Worm and Worm Gear Driving device, sprocket transmission device, gear drive.
3. steam turbine transfer valve lapping device according to claim 1; It is characterized in that: said fixture is a pressing plate; Pressing plate acts on the valve casing outside downwards, is fixedly connected base through securing member, and the correspondence position on pressing plate and the base is provided with the installing hole of securing member.
4. steam turbine transfer valve lapping device according to claim 1 is characterized in that: said holding device be one adjustable top, it holds out against the corresponding tapering spool of end bottom centre, upwards effect.
5. steam turbine transfer valve lapping device according to claim 1, it is characterized in that: the power source of said tumbler is a motor.
6. steam turbine transfer valve lapping device according to claim 4, it is characterized in that: said motor is provided with stepless speed adjusting gear.
7. steam turbine transfer valve lapping device according to claim 1 is characterized in that: be filled with boron carbide in the space between said tapering spool and the valve casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202809402U CN202212857U (en) | 2011-08-04 | 2011-08-04 | Steam turbine switching valve grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202809402U CN202212857U (en) | 2011-08-04 | 2011-08-04 | Steam turbine switching valve grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202212857U true CN202212857U (en) | 2012-05-09 |
Family
ID=46012127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202809402U Expired - Lifetime CN202212857U (en) | 2011-08-04 | 2011-08-04 | Steam turbine switching valve grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202212857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030590A (en) * | 2017-05-03 | 2017-08-11 | 中车青岛四方机车车辆股份有限公司 | A kind of low-floor tramcar axle bridge and locating ring lapping device |
-
2011
- 2011-08-04 CN CN2011202809402U patent/CN202212857U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030590A (en) * | 2017-05-03 | 2017-08-11 | 中车青岛四方机车车辆股份有限公司 | A kind of low-floor tramcar axle bridge and locating ring lapping device |
| CN107030590B (en) * | 2017-05-03 | 2019-11-08 | 中车青岛四方机车车辆股份有限公司 | A kind of low-floor tramcar axis bridge and positioning ring grinding device |
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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: 20120509 |
|
| CX01 | Expiry of patent term |