CN104759978A - Machine special for automatically grinding civilian nuclear main bolt hole - Google Patents
Machine special for automatically grinding civilian nuclear main bolt hole Download PDFInfo
- Publication number
- CN104759978A CN104759978A CN201510125858.5A CN201510125858A CN104759978A CN 104759978 A CN104759978 A CN 104759978A CN 201510125858 A CN201510125858 A CN 201510125858A CN 104759978 A CN104759978 A CN 104759978A
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- CN
- China
- Prior art keywords
- belt wheel
- large belt
- kingbolt hole
- tool body
- people
- 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.)
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a machine special for automatically grinding a civilian nuclear main bolt hole. The machine comprises a pneumatic motor, a support, a bearing structure beam, a positioning block, a large belt wheel, a guide column, a grinding tool body, a coupler, a small belt wheel and a synchronous belt, wherein the output end of the pneumatic motor is connected with the coupler, the coupler is fixedly connected with the small belt wheel, and the small belt wheel is connected with the large belt wheel through the synchronous belt. The guide column is eccentrically connected with the large belt wheel, the guide column is perpendicular to the plane where the large belt wheel is located, the grinding tool body for grinding the main bolt hole formed in a nuclear power pressure container cylinder is arranged at the end away from the large belt wheel, of the guide column, and the rotation center of the grinding tool body is coaxial with the main bolt hole. The machine has the advantages of being simple in structure, light in device weight, convenient to operate, convenient and quick to maintain and store and the like, achieves mechanical operation, is also suitable for batch production, the thread surface roughness of the main bolt hole of the nuclear power pressure container cylinder is effectively reduced, and the size accuracy of threads is improved.
Description
Technical field
The present invention relates to a kind of people's core kingbolt hole automatic grinding special plane, belong to nuclear power generating equipment field, for the automatic grinding in three generations's reactor pressure vessel kingbolt hole.
Background technology
In recent years, along with the fast development of nuclear power industry, and the whole world is to the strict demand of nuclear power product security, it is also proposed higher standard to the product quality of nuclear power generating equipment.
Reactor pressure vessel is the visual plant of nuclear power primary Ioops coolant pressure border barrier, has high temperature, high pressure, highly radioactive features.Leak for ensureing that it runs and radioactive substance does not occur under operating condition of test, the sealing of top cover and pressure container cylinder is that nuclear-power reactor pressure vessel installs the important step manufactured.For ensureing sealing, by applying the pretightning force of up to a hundred tons to kingbolt, and then top cover and pressure container cylinder are compressed, make it enough pressure and ensure sealing reliably, therefore the quality of screw thread is to sealing all important in inhibitings of the security of equipment and whole pressure vessel.The thread surface added due to machine is more coarse, cannot meet design drawing requirement.For the surface roughness reducing screw thread improves its dimensional accuracy, technique is taked Ginding process meet design drawing requirement, in current domestic people's nuclear reactor pressure container product, the grinding of kingbolt hole is grind manually mostly, and efficiency is low, labour intensity is large, grinding effect is not very good.
Summary of the invention
Grinding according to kingbolt hole in the prior art of above-mentioned proposition is grind manually mostly, the technical problems such as efficiency is low, labour intensity is large, grinding effect is not very good, and provides a kind of people's core kingbolt hole automatic grinding special plane.
The technological means that the present invention adopts is as follows:
A kind of people's core kingbolt hole automatic grinding special plane, comprises air motor, support, bearing structure beam, locating piece, large belt wheel, guide pillar, lap tool body, shaft coupling, small pulley and Timing Belt;
The two ends of described bearing structure beam are fixedly connected with nuclear pressure container cylindrical shell respectively by described locating piece, namely described locating piece is fixedly connected with the kingbolt hole of the both sides, kingbolt hole on the nuclear pressure container cylindrical shell needing to grind respectively, and the upper surface of described bearing structure beam is fixedly connected with described support;
Described support is fixedly connected with described air motor;
The output of described air motor is connected with described shaft coupling, and described shaft coupling is fixedly connected with described small pulley, and described small pulley is connected with described large belt wheel by described Timing Belt;
Described guide pillar is connected with described large belt wheel bias, described guide pillar is perpendicular to described large belt wheel place plane, described guide pillar is provided with the lap tool body in the kingbolt hole on grinding nuclear pressure container cylindrical shell away from one end of described large belt wheel, the centre of gyration of described lap tool body is coaxial with described kingbolt hole, and described bias connection is convenient to lap tool body and is realized rotating in a circumferential direction in kingbolt hole;
Under duty, described air motor drives described small pulley by described shaft coupling, and described small pulley drives described large belt wheel by described Timing Belt, and described large belt wheel drives carry out of described lap tool body to described kingbolt hole to grind by described guide pillar.
Described people's core kingbolt hole automatic grinding special plane also comprises a protective cover; described protective cover is fixedly connected on described bearing structure beam; be provided with in described protective cover and hold described small pulley; the space of described Timing Belt and described large belt wheel, the effect of described protective cover avoids drive disk assembly to cause contingent injury to operating personnel.
On described shaft coupling, cover has a torque limiter, and described torque limiter can limit output torque, damages kingbolt hole screw thread during to avoid clamping stagnation situation occurs because moment of torsion is excessive.
Described guide pillar is connected with described large belt wheel by a steering wheel, described steering wheel can described steering wheel axis rotate, rotated by the described guide pillar that rotarily drives of described steering wheel, thus drive described lap tool body to be close to kingbolt hole screw thread or away from kingbolt hole screw thread, throw off with kingbolt hole screw thread after the convenient processing to kingbolt hole screw thread and completion of processing.
The present invention is installed on nuclear pressure container cylindrical shell, utilizes the kingbolt hole of the both sides, kingbolt hole on the nuclear pressure container cylindrical shell needing grinding to position, grinds specific implementation rotate in a circumferential direction and then grind kingbolt hole by air motor drive.For ensureing lap tool body convenient turnover kingbolt hole, large belt wheel arranges eccentric structure, when passing in and out kingbolt hole, being turned to by the flank of lap tool body inside kingbolt hole and can load or take out, and can not produce with screw and interfere, and lap tool body is replaceable.The present invention has the advantages such as structure is simple, weight of equipment is light, easy to operate, maintenance storage is convenient, both mechanized operation was realized, adapt to again batch production, effectively reduce nuclear pressure container cylindrical shell kingbolt hole thread surface roughness, improve the dimensional accuracy of screw thread.
The present invention extensively can promote in fields such as nuclear power generating equipments for the foregoing reasons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the front view of the people's core kingbolt hole automatic grinding special plane in the specific embodiment of the present invention.
Fig. 2 is that the A-A of Fig. 1 of the present invention is to sectional view.
Fig. 3 is the top view of the people's core kingbolt hole automatic grinding special plane in the specific embodiment of the present invention.
Fig. 4 is that the B-B of Fig. 3 of the present invention is to sectional view.
Fig. 5 is the I portion enlarged diagram of Fig. 1 of the present invention.
Wherein, 1, air motor, 2, support, 3, bearing structure beam, 4, locating piece, 5, protective cover, 6, large belt wheel, 7, guide pillar, 8, lap tool body, 9, shaft coupling, 10, torque limiter, 11, small pulley, 12, Timing Belt, 13, steering wheel.
Detailed description of the invention
As Figure 1-Figure 4, a kind of people's core kingbolt hole automatic grinding special plane, comprises air motor 1, support 2, bearing structure beam 3, locating piece 4, large belt wheel 6, guide pillar 7, lap tool body 8, shaft coupling 9, small pulley 11 and Timing Belt 12;
The two ends of described bearing structure beam 3 are fixedly connected with nuclear pressure container cylindrical shell respectively by described locating piece 4, and the upper surface of described bearing structure beam 3 is fixedly connected with described support 2;
Described support 2 is fixedly connected with described air motor 1;
The output of described air motor 1 is connected with described shaft coupling 9, and described shaft coupling 9 is fixedly connected with described small pulley 11, and described small pulley 11 is connected with described large belt wheel 6 by described Timing Belt 12;
Described guide pillar 7 is connected with described large belt wheel 4 bias, described guide pillar 7 is perpendicular to described large belt wheel 6 place plane, described guide pillar 7 is provided with the lap tool body 8 in the kingbolt hole on grinding nuclear pressure container cylindrical shell away from one end of described large belt wheel 6, and the centre of gyration of described lap tool body 8 is coaxial with described kingbolt hole;
Under duty, described air motor 1 drives described small pulley 11 by described shaft coupling 9, described small pulley 11 drives described large belt wheel 6 by described Timing Belt 12, and described large belt wheel 6 drives carry out of described lap tool body 8 to described kingbolt hole to grind by described guide pillar 7.
Described people's core kingbolt hole automatic grinding special plane also comprises a protective cover 5, and described protective cover 5 is fixedly connected on described bearing structure beam 3, establishes with holding described small pulley 11, the space of described Timing Belt 12 and described large belt wheel 6 in described protective cover 5.
On described shaft coupling 9, cover has a torque limiter 10.
Described guide pillar 7 is connected with described large belt wheel 6 by a steering wheel 13, described steering wheel 13 can described steering wheel 13 axis rotate.
People's core kingbolt hole automatic grinding special plane material of main part adopts high-strength aluminum alloy, has the advantages such as lightweight, high strength, high tenacity.
Below the working method of a kind of people's core kingbolt hole of the present invention automatic grinding special plane is described further:
(1) air motor 1 is arranged on bearing structure beam 3 by support 2.Air motor 1 as the power output part of whole people's core kingbolt hole automatic grinding special plane, for the circular motion of lap tool body 8 provides power.
(2) large belt wheel 6, shaft coupling 9, torque limiter 10, small pulley 11, Timing Belt 12 are formed drive disk assembly, and be arranged on bearing structure beam 3, protective cover 5 is installed simultaneously.Effect is by the output torque of air motor 1 and rotating speed, carries out reduction of speed by large small pulley, realizes the instructions for use of the slow-speed of revolution, high pulling torque.
(3) people's core kingbolt hole automatic grinding special plane is connected with reactor pressure vessel cylindrical shell by locating piece 4, ensures that the centre of gyration of lap tool body 8 keeps coaxial with target kingbolt hole.Lap tool body 8 is connected with drive disk assembly by guide pillar 7, rotates the steering wheel 13 on large belt wheel 6, make screw thread and the target kingbolt hole threaded engagement of lap tool body 8, when drive disk assembly drives lap tool body 8 to carry out circumferential movement, grinding screw thread.Lap tool body after using can be changed.
(4) torque limiter 10 can limit output torque, and when there is the super moment of torsion operating modes such as clamping stagnation, lap tool body 8 can be thrown off with drive disk assembly, avoids excessive torque and damages product kingbolt hole screw thread.
(5) when the steering wheel rotated after finishing using on large belt wheel 6 180 °, the screw thread of lap tool body 8 and target kingbolt hole screw thread are thrown off, ensure that people's core kingbolt hole automatic grinding special plane leaves reactor pressure vessel smoothly, can not the phenomenon cannot dismantled because of threaded engagement be produced.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. people's core kingbolt hole automatic grinding special plane, is characterized in that: described people's core kingbolt hole automatic grinding special plane comprises air motor, support, bearing structure beam, locating piece, large belt wheel, guide pillar, lap tool body, shaft coupling, small pulley and Timing Belt;
The two ends of described bearing structure beam are fixedly connected with nuclear pressure container cylindrical shell respectively by described locating piece, and the upper surface of described bearing structure beam is fixedly connected with described support;
Described support is fixedly connected with described air motor;
The output of described air motor is connected with described shaft coupling, and described shaft coupling is fixedly connected with described small pulley, and described small pulley is connected with described large belt wheel by described Timing Belt;
Described guide pillar is connected with described large belt wheel bias, described guide pillar is perpendicular to described large belt wheel place plane, described guide pillar is provided with the lap tool body in the kingbolt hole on grinding nuclear pressure container cylindrical shell away from one end of described large belt wheel, and the centre of gyration of described lap tool body is coaxial with described kingbolt hole;
Under duty, described air motor drives described small pulley by described shaft coupling, and described small pulley drives described large belt wheel by described Timing Belt, and described large belt wheel drives carry out of described lap tool body to described kingbolt hole to grind by described guide pillar.
2. a kind of people's core kingbolt hole according to claim 1 automatic grinding special plane; it is characterized in that: described people's core kingbolt hole automatic grinding special plane also comprises a protective cover; described protective cover is fixedly connected on described bearing structure beam; be provided with in described protective cover and hold described small pulley, the space of described Timing Belt and described large belt wheel.
3. a kind of people's core kingbolt hole according to claim 1 automatic grinding special plane, is characterized in that: on described shaft coupling, cover has a torque limiter.
4. a kind of people's core kingbolt hole according to claim 1 automatic grinding special plane, is characterized in that: described guide pillar is connected with described large belt wheel by a steering wheel, and described steering wheel can the axis rotation of described steering wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125858.5A CN104759978B (en) | 2015-03-20 | 2015-03-20 | People's core kingbolt hole automatic grinding special plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125858.5A CN104759978B (en) | 2015-03-20 | 2015-03-20 | People's core kingbolt hole automatic grinding special plane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759978A true CN104759978A (en) | 2015-07-08 |
| CN104759978B CN104759978B (en) | 2017-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510125858.5A Active CN104759978B (en) | 2015-03-20 | 2015-03-20 | People's core kingbolt hole automatic grinding special plane |
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| CN (1) | CN104759978B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB529666A (en) * | 1939-06-06 | 1940-11-26 | Coventry Gauge & Tool Co Ltd | Improvements in or relating to the production and/or finishing of internal screw threads by a grinding operation |
| CN2897542Y (en) * | 2005-12-28 | 2007-05-09 | 广州市敏嘉制造技术有限公司 | Digital-controlled internal screw grinding center |
| JP2008114352A (en) * | 2006-11-08 | 2008-05-22 | Nachi Fujikoshi Corp | Grinding device |
| CN201291407Y (en) * | 2008-11-25 | 2009-08-19 | 沈阳市北陵多元机电研究所 | Grinding device for sealing surface of valve base of high-temperature, high-pressure valve |
| CN201659466U (en) * | 2009-11-27 | 2010-12-01 | 中国直升机设计研究所 | Deep-hole grinding device |
| CN102765041A (en) * | 2012-07-31 | 2012-11-07 | 东方电气集团东方汽轮机有限公司 | Tool for honing connecting bolt hole |
| CN103612196A (en) * | 2013-11-04 | 2014-03-05 | 东方电气(广州)重型机器有限公司 | Method for finishing and grinding large accurate threaded hole and grinding tool |
-
2015
- 2015-03-20 CN CN201510125858.5A patent/CN104759978B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB529666A (en) * | 1939-06-06 | 1940-11-26 | Coventry Gauge & Tool Co Ltd | Improvements in or relating to the production and/or finishing of internal screw threads by a grinding operation |
| CN2897542Y (en) * | 2005-12-28 | 2007-05-09 | 广州市敏嘉制造技术有限公司 | Digital-controlled internal screw grinding center |
| JP2008114352A (en) * | 2006-11-08 | 2008-05-22 | Nachi Fujikoshi Corp | Grinding device |
| CN201291407Y (en) * | 2008-11-25 | 2009-08-19 | 沈阳市北陵多元机电研究所 | Grinding device for sealing surface of valve base of high-temperature, high-pressure valve |
| CN201659466U (en) * | 2009-11-27 | 2010-12-01 | 中国直升机设计研究所 | Deep-hole grinding device |
| CN102765041A (en) * | 2012-07-31 | 2012-11-07 | 东方电气集团东方汽轮机有限公司 | Tool for honing connecting bolt hole |
| CN103612196A (en) * | 2013-11-04 | 2014-03-05 | 东方电气(广州)重型机器有限公司 | Method for finishing and grinding large accurate threaded hole and grinding tool |
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| Publication number | Publication date |
|---|---|
| CN104759978B (en) | 2017-05-31 |
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Address after: 116113 No.1-1, MianHuaDao Road, Ganjingzi District, Dalian City, Liaoning Province Co-patentee after: CHINA FIRST HEAVY INDUSTRIES Patentee after: Dalian nuclear power and Petrochemical Co., Ltd Address before: 116113 No. 1 cotton road, Dalian Bay, Ganjingzi District, Liaoning, Dalian Co-patentee before: CHINA FIRST HEAVY INDUSTRIES Patentee before: China First Heavy Machinery Group Dalian hydrogenation reactor Manufacturing Co.,Ltd. |
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| CP03 | Change of name, title or address |