CN104275641A - Adjustable turbine intra-wheel hole grinding device - Google Patents
Adjustable turbine intra-wheel hole grinding device Download PDFInfo
- Publication number
- CN104275641A CN104275641A CN201310277581.9A CN201310277581A CN104275641A CN 104275641 A CN104275641 A CN 104275641A CN 201310277581 A CN201310277581 A CN 201310277581A CN 104275641 A CN104275641 A CN 104275641A
- Authority
- CN
- China
- Prior art keywords
- bolt
- support bar
- main shaft
- grinding
- clamping joint
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/02—Lapping machines or devices; Accessories designed for working surfaces of revolution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a turbine intra-wheel hole grinding device, and belongs to the technical field of mechanical tools. The device comprises a main shaft, at least two lists of holes are formed in the main shaft in the radial direction, the two lists of holes are evenly distributed along the circumference of the main shaft, each list comprises at least two holes, bolts are located through nuts after penetrating through the holes, one end of each bolt is provided with threads, the other end of each bolt is provided with a clamping head, grinding material supporting rods provided with clamping notches are arranged in parallel with the main shaft, the number of the supporting rods is at least two, the clamping heads of the bolts are connected into the clamping notches of the supporting rods, springs are arranged on the bolts in a sleeving mode and arranged between the main shaft and the supporting rods, the outer surfaces of the supporting rods are arc, the arc surfaces are not continuous in the circumferential direction, grooves are formed between the arc surfaces in the length directions of the supporting rods, and grinding materials are arranged on all the arc surfaces. The device can improve the grinding precision and improve the working efficiency.
Description
Technical field
The present invention relates to a kind of wheel inner hole grinder, particularly a kind of steam turbine is to wheel inner hole grinder, belongs to machine tool technical field.
Background technology
Steam turbine is the core capital equipment of electricity power enterprise, the repair rate of steam turbine and life-span have a great impact the Homes Using TV of electricity power enterprise and cost of electricity-generating tool, in overhaul of steam turbine process, frequent needs are installed wheel, the required precision of this installation is very high, minimum error and mismatch also can produce larger impact to the working of steam turbine, finally affect repair rate and equipment life, cause the increase of entreprise cost, in order to overcome this problem, usually the precision grinding to ensure installation to the inwall in hole is needed when wheel is installed, this grinding work was substantially all completed by manual in the past, this lapping mode also exists many defects, main manifestations is: one is low precision, and the chip produced in bruting process also can cause secondary to scratch to abradant surface, cause running cooperation after installing and using do not reach optimum state and affect separate run times, add repair rate, two is that labour consumes greatly, waste time and energy, labour and capital cost is high, three is have certain requirement to the quality technical ability of grinding personnel.So affect Homes Using TV and the cost of electricity-generating of electricity power enterprise to this mode of the grinding of steam turbine endoporus, in maintenance repair installation practice, need a kind of efficient, high-precision lapping device.
Summary of the invention
The present invention is for providing a kind of adjustable steam turbine to wheel inner hole grinder.
The adjustable steam turbine of one provided by the present invention is to wheel inner hole grinder, comprise a main shaft, main shaft is connected on device of rotation driving, along main shaft diameter to offering at least two row holes, two described row holes are evenly distributed along main shaft circumference, often arrange hole and be at least two, one end is arranged threaded bolt and is located by nut through behind hole, the other end of bolt is provided with clamping joint, the grinding-material support bar and the main axis parallel that are provided with clamping slot are arranged, described support bar is at least two, the clamping joint of bolt is connected in the clamping slot of support bar, spring is through on bolt and is arranged between main shaft and support bar, the outer surface of described support bar is circular arc, described arc-shaped surface is along the circumferential direction discontinuous, the groove along support bar length direction is had between arc-shaped surface, described grinding-material is arranged on each arc-shaped surface, along main shaft diameter to offering three row holes, three row holes are evenly distributed along main shaft circumference, angle between each row centerline hole is 120
o, often arrange Kong Yousan, in each hole in three row holes, a bolt is set, be respectively bolt aa, bolt ab, bolt ac, bolt ba, bolt bb, bolt bc, bolt ca, bolt cb, bolt, one end of described bolt is screw thread, one end is clamping joint, three support bars are set, be respectively support bar a, support bar b, support bar c, the buckling groove of three support bars is connected with the clamping joint of three row bolt one end respectively, each bolt is all equipped with spring, the clamping joint of described bolt one end is: the upper end of one end of bolt is a hemisphere, hemisphere bottom arranges the cylindrical neck that a diameter is less than spheroid, the diameter of bolt and hemispheroidal equal diameters, clamping slot on described support bar is: in the one side of support bar, support bar length direction is provided with one and can holds the hemispheroidal cavity in clamping joint upper end, cavity offers along support bar length direction the opening that width is greater than clamping joint cylindrical neck diameter, the width of opening is less than the diameter of bolt, the clamping joint cylindrical neck of bolt is connected with support bar by opening, described support bar cavity one end is along its length offered from end face, offer cavity length be less than the length of support bar, described grinding-material is fixedly installed on support bar, the grinding-material of two kinds of different meshes is at least set along support bar length direction, described grinding-material is fixedly installed on support bar, the grinding-material of three kinds of different meshes is set along support bar length direction, described main shaft is six prisms.
The adjustable steam turbine of one provided by the present invention is to wheel inner hole grinder, by arranging main shaft and support bar, spring is provided with between main shaft and support bar, grinding-material is arranged on support bar, grinding is that spring be press against support bar by elastic force and ground inner hole wall by grinding-material, the power being applied to abradant surface is evenly adjustable, bolt is through the aerial of main shaft and is located by nut, can according to the distance between the adjustment support bar of the size reasonable in hole and main shaft, to adapt to the needs of different pore size, form adjustable lapping device, clamping joint on bolt is movably arranged in the cavity of support bar, it is a kind of floating connection mode, can regulate by teaching display stand in process of lapping, not easily hole inwall is caused to the injury of rigidity, support bar outer surface be set to arc, grinding-material is arranged on arc, the contact no-float between inwall can be ensured, arcwall face is set to discontinuous, between arcwall face, groove is set, can ensure that the chip produced in process of lapping is discharged timely, be unlikely to scratch inner wall surface, facts have proved, speed lapping can form higher-quality abradant surface, this design can produce certain air-flow cooling effect in addition when speed lapping, avoid because grinding causes temperature height to produce the impact bad on abradant surface, the grinding-material of different meshes is set along supporting surface length direction, the grinding of different stage can be carried out to the different piece in inwall length simultaneously, increase work efficiency further, main shaft is set to hexagonal prism shape, more favourable and making and installation, can the stressing conditions of all parts in Optimization Work process, improve the stability of whole device.Structure of the present invention is simple; be easy to manufacture, be applied to electricity power enterprise's steam turbine in the grinding step of hole, effectively can improve grinding precision; promote operating efficiency; accelerate the repair time, extension device running time, reduce entreprise cost; through practice test; adopt this device more manually can save man-hour more than 95%, adopt the machine halt trouble minimizing 80% of the endoporus after this device grinding owing to causing hole deviation, shutdown maintenance cycle stretch-out more than one times.
Accompanying drawing explanation
Fig. 1 is overall schematic of the present invention.
Fig. 2 is by the schematic side view of inventing.
Fig. 3 is the schematic diagram of discontinuous arcwall face on support bar of the present invention.
Fig. 4 be bolt card joint with support bar buckling groove coordinate schematic diagram.
Detailed description of the invention
In order to explain enforcement of the present invention more fully, provide embodiment of the present invention, these embodiments are only to elaboration of the present invention, do not limit the scope of the invention.
As accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, shown in accompanying drawing 4, a kind of adjustable steam turbine is to wheel inner hole grinder, comprise a main shaft 1, main shaft 1 is connected on device of rotation driving, at least two row holes are offered along main shaft 1 radial direction, two described row holes are evenly distributed along main shaft circumference, often arrange hole and be at least two, one end is arranged threaded bolt and is located by nut through behind hole, the other end of bolt is provided with clamping joint, the grinding-material support bar and the main shaft 1 that are provided with clamping slot be arranged in parallel, described support bar is at least two, the clamping joint of bolt is connected in the clamping slot of support bar, spring is through on bolt and is arranged between main shaft 1 and support bar, the outer surface of described support bar is circular arc, described arc-shaped surface is along the circumferential direction discontinuous, the groove along support bar length direction is had between arc-shaped surface, described grinding-material is arranged on each arc-shaped surface, three row holes are offered along main shaft 1 radial direction, three row holes are evenly distributed along main shaft circumference, often arrange Kong Yousan, in each hole in three row holes, a bolt is set, be respectively bolt aa2-1, bolt ab2-2, bolt ac2-3, bolt ba3-1, bolt bb3-2, bolt bc3-3, bolt ca4-1, bolt cb4-2, bolt 4-3, one end of described bolt is screw thread, one end is clamping joint, three support bars are set, be respectively support bar a5-1, support bar b5-2, support bar c5-3, the buckling groove of three support bars is connected with the clamping joint of three row bolt one end respectively, each bolt is all equipped with spring, the clamping joint of described bolt one end for: described in accompanying drawing 4, the upper end of one end of bolt is a hemisphere 6-1, hemisphere bottom arranges the cylindrical neck 6-2 that a diameter is less than spheroid, the diameter of bolt and hemispheroidal equal diameters, clamping slot on described support bar is: in the one side of support bar, support bar length direction is provided with one and can holds the hemispheroidal cavity 7-1 in clamping joint upper end, cavity offers along support bar length direction the opening 7-2 that width is greater than clamping joint cylindrical neck diameter, the width of opening is less than the diameter of bolt, the clamping joint cylindrical neck of bolt is connected with support bar by opening, described support bar cavity one end is along its length offered from end face, offer cavity length be less than the length of support bar, described grinding-material is fixedly installed on support bar, the grinding-material of two kinds of different meshes is at least set along support bar length direction, described grinding-material is fixedly installed on support bar, the grinding-material of three kinds of different meshes is set along support bar length direction, described main shaft 1 is six prisms.Accompanying drawing 1 is the schematic diagram of entirety of the present invention, and main shaft 1 is offered three row holes, and the angle between the center line in three row holes is 120
o, bolt aa2-1, bolt ab2-2, bolt ac2-3 becomes row to be connected with support bar a5-1, bolt ba3-1, bolt bb3-2, bolt bc3-3 becomes row to be connected with support bar b5-2, bolt ca4-1, bolt cb4-2, bolt 4-3 becomes row to want to be connected with support bar c5-3, accompanying drawing 2 is schematic side view of the present invention, bolt is located by nut through main shaft, in Fig. 2, bolt aa2-1 is arranged spring a8-1, located by nut a9-1 through after main shaft 1, bolt ba3-1 is arranged spring b8-2, located by nut b9-2 through after main shaft 1, bolt ca4-1 is arranged spring c8-3, located by nut c9-3 through after main shaft 1, bolt aa2-1, , bolt ba3-1, bolt ca4-1 is respectively arranged with clamping joint, clamping joint is separately positioned on support bar a, support bar b, in the buckling groove of support bar c, Spring Card is between each support bar and main shaft.Fig. 3 is the schematic diagram of arcwall face of the present invention, in the drawings, arcwall face is discontinuous, and be provided with groove a11-1, groove b11-2, groove c11-3 between arcwall face a10-1, arcwall face b10-2, cambered surface c10-3, cambered surface d10-4, grinding-material is fixedly installed on arcwall face.For increasing security, catch can be set on the end face that supporting surface offers cavity, prevent clamping joint from deviating from along support bar length direction.The grinding-material of three kinds of different meshes is set along each support bar length direction as required, grinding-material can directly be bonded on support bar, when roughly grinding wheel inner wall section face, fine grinding or polishing can be carried out to another part face simultaneously, can effectively increase work efficiency.Assembling of the present invention and use procedure are: first each bolt is penetrated aerial that main shaft 1 is offered, one end nut is just located, spring is penetrated in bolt, from the buckling groove of support bar one end, the loading of the clamping joint of each row bolt is made to couple together between bolt and steady arm, then the distance between steady arm and main shaft is regulated according to the size rotating nut of grinding hole, various grinding-material is arranged on support bar as required, main shaft 1 is connected on rotating driving device, rotating driving device can be electric hand drill etc., during grinding, the top power that support bar is subject to spring applies pressure on abradant surface uniformly, floating connection between support bar and bolt, the stressing conditions of all right adjusting and optimizing abradant surface further, grinding-material is arranged in cambered surface, and between internal via shape, have good cooperation, groove is provided with between discontinuous cambered surface, the passage of grinding chip can be formed, protection abradant surface is unlikely to produce and scratches.
After detailed description embodiments of the present invention, the personage being familiar with this technology can be well understood to, do not departing under above-mentioned claim and spirit and can carry out various change and amendment, all above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all belong to the scope of technical solution of the present invention, and the present invention is not also limited to the embodiment of example in description.
Claims (7)
1. an adjustable steam turbine is to wheel inner hole grinder, comprise a main shaft (1), main shaft (1) is connected on device of rotation driving, it is characterized in that: offer at least two row holes along main shaft (1) radial direction, two described row holes are evenly distributed along main shaft circumference, often arrange hole and be at least two, one end is arranged threaded bolt and is located by nut through behind hole, the other end of bolt is provided with clamping joint, the grinding-material support bar and the main shaft (1) that are provided with clamping slot be arranged in parallel, described support bar is at least two, the clamping joint of bolt is connected in the clamping slot of support bar, spring is through on bolt and is arranged between main shaft (1) and support bar, the outer surface of described support bar is circular arc, described arc-shaped surface is along the circumferential direction discontinuous, the groove along support bar length direction is had between arc-shaped surface, described grinding-material is arranged on each arc-shaped surface.
2. the adjustable steam turbine of one according to claim 1 is to wheel inner hole grinder, it is characterized in that: offer three row holes along main shaft (1) radial direction, three row holes are evenly distributed along main shaft circumference, often arrange Kong Yousan, in each hole in three row holes, a bolt is set, be respectively bolt aa(2-1), bolt ab(2-2), bolt ac(2-3), bolt ba(3-1), bolt bb(3-2), bolt bc (3-3), bolt ca(4-1), bolt cb(4-2), bolt (4-3), one end of described bolt is screw thread, one end is clamping joint, three support bars are set, be respectively support bar a(5-1), support bar b(5-2), support bar c(5-3), the buckling groove of three support bars is connected with the clamping joint of three row bolt one end respectively, each bolt is all equipped with spring.
3. the adjustable steam turbine of one according to claim 1 is to wheel inner hole grinder, it is characterized in that: the clamping joint of described bolt one end is: the upper end of one end of bolt is a hemisphere, hemisphere bottom arranges the cylindrical neck that a diameter is less than spheroid, the diameter of bolt and hemispheroidal equal diameters, clamping slot on described support bar is: in the one side of support bar, support bar length direction is provided with one and can holds the hemispheroidal cavity in clamping joint upper end, cavity offers along support bar length direction the opening that width is greater than clamping joint cylindrical neck diameter, the width of opening is less than the diameter of bolt, the clamping joint cylindrical neck of bolt is connected with support bar by opening.
4. the adjustable steam turbine of one according to claim 3 is to wheel inner hole grinder, it is characterized in that: described support bar cavity one end is along its length offered from end face, offer cavity length be less than the length of support bar.
5. the adjustable steam turbine of one according to claim 1 is to wheel inner hole grinder, it is characterized in that: described grinding-material is fixedly installed on support bar, at least arranges the grinding-material of two kinds of different meshes along support bar length direction.
6. the adjustable steam turbine of one according to claim 1 is to wheel inner hole grinder, it is characterized in that: described grinding-material is fixedly installed on support bar, arranges the grinding-material of three kinds of different meshes along support bar length direction.
7. the adjustable steam turbine of one according to claim 1 is to wheel inner hole grinder, it is characterized in that: described main shaft (1) is six prisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277581.9A CN104275641B (en) | 2013-07-04 | 2013-07-04 | A kind of adjustable steam turbine is to wheel inner hole grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277581.9A CN104275641B (en) | 2013-07-04 | 2013-07-04 | A kind of adjustable steam turbine is to wheel inner hole grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104275641A true CN104275641A (en) | 2015-01-14 |
| CN104275641B CN104275641B (en) | 2016-08-10 |
Family
ID=52251240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310277581.9A Expired - Fee Related CN104275641B (en) | 2013-07-04 | 2013-07-04 | A kind of adjustable steam turbine is to wheel inner hole grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104275641B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4943638A (en) * | 1972-08-29 | 1974-04-24 | ||
| DE3223364A1 (en) * | 1982-06-23 | 1983-12-29 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Lapping tool |
| JPH08192344A (en) * | 1995-01-13 | 1996-07-30 | Mitsubishi Electric Corp | Finishing device for inner surface of cylinder and finishing method for inner surface of cylinder |
| JP2009078320A (en) * | 2007-09-26 | 2009-04-16 | Isuzu Motors Ltd | Honing device for cylinder bore |
| CN102922408A (en) * | 2012-10-09 | 2013-02-13 | 中船澄西船舶修造有限公司 | Lathe tailstock hole grinding fixture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1450986A1 (en) * | 1985-07-23 | 1989-01-15 | Саратовский политехнический институт | Method of abrasive working of holes |
-
2013
- 2013-07-04 CN CN201310277581.9A patent/CN104275641B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4943638A (en) * | 1972-08-29 | 1974-04-24 | ||
| DE3223364A1 (en) * | 1982-06-23 | 1983-12-29 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Lapping tool |
| JPH08192344A (en) * | 1995-01-13 | 1996-07-30 | Mitsubishi Electric Corp | Finishing device for inner surface of cylinder and finishing method for inner surface of cylinder |
| JP2009078320A (en) * | 2007-09-26 | 2009-04-16 | Isuzu Motors Ltd | Honing device for cylinder bore |
| CN102922408A (en) * | 2012-10-09 | 2013-02-13 | 中船澄西船舶修造有限公司 | Lathe tailstock hole grinding fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104275641B (en) | 2016-08-10 |
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Granted publication date: 20160810 Termination date: 20190704 |