CN204353747U - The full-automatic kingbolt stretching-machine of monomer - Google Patents
The full-automatic kingbolt stretching-machine of monomer Download PDFInfo
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- CN204353747U CN204353747U CN201420851472.3U CN201420851472U CN204353747U CN 204353747 U CN204353747 U CN 204353747U CN 201420851472 U CN201420851472 U CN 201420851472U CN 204353747 U CN204353747 U CN 204353747U
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Abstract
The full-automatic kingbolt stretching-machine of monomer, comprise kingbolt stretching-machine and balance and measurement mechanism, kingbolt stretching-machine comprises stretching nut apparatus, stretching nut slewing equipment, stretching-machine housing, high-voltage oil cylinder and mother nut slewing equipment, balance and measurement mechanism comprise hydro-cushion oil cylinder and are arranged on the displacement transducer on oil cylinder, and displacement transducer is connected with automatic control unit by holding wire.Control unit is single board computer or the computer of preset control program.Beneficial effect is: the weight balancing tightening nut self with hydro-cushion oil cylinder, can screw in the stretching screw thread place of kingbolt more reposefully; High pressure, middle pressure, low pressure classification pretension can be realized or unscrew kingbolt, can high accuracy control be carried out to bolt tension overall process; Automaticity is high, the working time is short, efficiency is high, security is good, and equipment operating link is few, and control program simplifies, and misoperation probability is low, and the equipment probability that has an accident is low, is more of value to the healthy of operator.
Description
Technical field
The utility model belongs to nuclear power generating equipment specific purpose tool field, particularly relates to top cover of reactor pressure vessel kingbolt stretching-machine, realizes kingbolt rapid pretension or unclamp.
Background technology
Along with the development of nuclear industry, kind and the quantity of reactor pressure vessel product get more and more, for by kingbolt pretension or unclamp the effect of specific purpose tool-kingbolt stretching-machine and importance highlights day by day.How improving the operating efficiency of kingbolt stretching-machine, shortening kingbolt stretches (pretension or the dismounting) working time, reduce equipment operating link, reduce operator by radiated time, reduction human factor misoperation probability, raising work quality, is the technique direction of nuclear power generating equipment specific purpose tool field primary study and exploitation.
The reactor pressure vessel kingbolt stretching-machine of prior art, all manual or automanual, drive stretching nut to stretch position by stretching nut slewing equipment, then stretched to stretching nut by high-voltage oil cylinder, then mother nut slewing equipment drives kingbolt to screw or unscrew.The deficiencies in the prior art are: the measurement of the permanent elongation amount of bolt after total tensile elongation amount of kingbolt drawing process and mother nut pretension, must professional come with special measurement instrument and auxiliary equipment by hand, inefficiency, human factor are very large on measurement result impact, and measure error is larger.
Summary of the invention
The purpose of this utility model is to provide a kind of novel monomer full-automatic kingbolt stretching-machine structure, overcomes the deficiencies in the prior art.
The technical solution of the utility model is: the full-automatic kingbolt stretching-machine of monomer, comprise kingbolt stretching-machine, kingbolt stretching-machine comprises stretching nut apparatus, stretching nut slewing equipment, stretching-machine housing, high-voltage oil cylinder and mother nut slewing equipment, stretching nut apparatus and high-voltage oil cylinder are arranged in stretching-machine housing, stretching nut slewing equipment and mother nut slewing equipment are arranged on stretching-machine housing, stretching nut apparatus comprises stretching nut, guide plate and swiveling gear, stretching nut is connected with swiveling gear, swiveling gear engages with the gear driving pair of stretching nut slewing equipment, stretching nut slewing equipment drives stretching nut precession and back-out, guide plate is placed in below swiveling gear and leads along stretcher casing inner body surface, stretching nut slewing equipment comprises the stretching nut gear transmission driven by stretching nut motor via reducer, mother nut slewing equipment comprises the mother nut gear driving pair that mother nut motor via reducer drives, mother nut gear driving pair engages with the kingbolt external tooth that is stretched, the driving kingbolt that is stretched screws and unscrews, it is characterized in that, the full-automatic kingbolt stretching-machine of described monomer also comprises balance and measurement mechanism, balance and measurement mechanism comprise hydro-cushion oil cylinder and are arranged on the displacement transducer on oil cylinder, described hydro-cushion oil cylinder is arranged on the top of stretching-machine housing, and the piston rod of hydro-cushion oil cylinder stretches in stretching-machine housing and is dynamically connected with the stretching slide nut in stretching nut apparatus, institute's displacement sensors is arranged on hydro-cushion oil cylinder, and the probe of displacement transducer is arranged in the piston rod of hydro-cushion oil cylinder, and institute's displacement sensors is connected with automatic control unit by holding wire.
The full-automatic kingbolt stretching-machine of monomer described in the utility model, is characterized in that; Described automatic control unit is single board computer or the computer of preset control program.
The major function of each part of monomer of the present utility model full-automatic kingbolt stretching-machine is as follows:
The permanent elongation amount of bolt after balance and measurement mechanism are used for the weight of balanced stretch nut apparatus and the frictional force overcome between guide plate and stretching-machine inner walls and measure total length that bolt is stretched, mother nut pretension exactly;
Stretching nut apparatus is used for stretching nut to screw in screw out kingbolt stretching screw thread position;
Stretching nut slewing equipment, for driving stretching nut apparatus, drives stretching nut rotation;
High-voltage oil cylinder is used for jacking stretching nut thus stretching kingbolt;
Mother nut slewing equipment is for driving kingbolt to tighten or back-outing.
Working procedure of the present utility model is mainly divided into kingbolt pretension and kingbolt to unscrew two courses of work, and concrete grammar is as follows:
1, kingbolt pretension
1) be placed on top cover of reactor pressure vessel flange by kingbolt stretching-machine, the stretching nut in kingbolt stretching-machine stretching nut apparatus is by kingbolt jack-up, and now balance and measurement mechanism data measured are home position numerical value;
2) motor in stretching nut slewing equipment is started, motor via reducer, gear driving pair drive stretching nut to rotate to the stretching screw thread position of kingbolt, balance and measurement mechanism record stretching nut when being screwed into the stretching screw thread position of kingbolt, stretching nut slewing equipment quits work, now balance and measurement mechanism measured by data be the initial value of kingbolt;
3) start Hydraulic Station, the piston of high-voltage oil cylinder is moved up, by the stretching nut upwards jack-up in stretching nut apparatus, kingbolt is stretched, when starting Hydraulic Station and reaching the pressure of regulation, high-voltage oil cylinder pressurize, now the total length that bolt is stretched measured by balance and measurement mechanism;
4) start the motor in mother nut slewing equipment, motor via reducer, gear driving pair drive mother nut to rotate, when the moment of torsion of motor reaches setting, and motor stalls, now mother nut tightens;
5) by high-voltage oil cylinder pressure release, make kingbolt be in Pre strained state, now balance and measurement mechanism data measured are the elongation that kingbolt is finally stretched;
6) motor reversal in stretching nut slewing equipment is started, the stretching screw thread position being driven stretching nut upwards whiz kingbolt by reductor, gear driving pair of motor, when balancing and measurement mechanism data measured is home position numerical value, stretching nut revolves and screws out from the stretching screw thread position of kingbolt, and stretching nut slewing equipment quits work;
7) kingbolt stretching-machine is shifted out from top cover of reactor pressure vessel flange, carry out next group kingbolt pretension;
2, kingbolt unscrews
1) be placed on top cover of reactor pressure vessel flange by kingbolt stretching-machine, the stretching nut in stretching nut apparatus is by kingbolt jack-up, and balance and measurement mechanism data measured are home position numerical value;
2) motor in stretching nut slewing equipment is started, motor via reducer, gear driving pair drive the stretching screw thread position of stretching nut rotation direction kingbolt, when balance and measurement mechanism record stretching nut be screwed into the stretching screw thread position of kingbolt time, stretching nut slewing equipment quits work, now balance and measurement mechanism measured by data be the elongation that kingbolt is stretched;
3) start Hydraulic Station, the piston of high-voltage oil cylinder moved up, by the stretching nut upwards jack-up in stretching nut apparatus, kingbolt is stretched, when balance and measurement mechanism measure when bolt reaches pretension be stretched length value time, high-voltage oil cylinder pressurize;
4) start the motor reversal in mother nut slewing equipment, motor via reducer, gear driving pair drive mother nut direction to rotate, when the moment of torsion of motor reaches setting, and motor stalls, now mother nut is back-outed;
5) by high-voltage oil cylinder pressure release, kingbolt is made to be in original state;
6) start the motor reversal in stretching nut slewing equipment, motor via reducer, gear pass
Dynamic subband moves the stretching screw thread position of stretching nut upwards whiz kingbolt, and when balancing and measurement mechanism data measured is home position numerical value, stretching nut revolves and screws out from the stretching screw thread position of kingbolt, and stretching nut slewing equipment quits work;
7) kingbolt stretching-machine is shifted out from top cover of reactor pressure vessel flange, carry out next group kingbolt and unscrew.
The beneficial effects of the utility model are:
1) automatic monitoring of kingbolt stretching overall process and automatic record is achieved, measure total length that bolt is stretched and the elongation precision that bolt is finally stretched is high, eliminate human factor to affect measurement result, high pressure, middle pressure, low pressure classification pretension (or unscrewing) kingbolt can be realized;
2) technology maturation is feasible; Not only shorten the stretching-machine working time, enhance stretching-machine control program, improve the operating efficiency of stretching-machine, decrease equipment operating link and operator by radiated time, also effectively protect the healthy of operator;
3) safe and reliable, reduce human factor misoperation probability, improve work quality, also improve the equipment level of reactor pressure vessel kingbolt stretching-machine simultaneously;
4) balance the weight of tightening nut self with hydro-cushion oil cylinder, the stretching screw thread place of kingbolt can be screwed in more reposefully;
5) automaticity is high, operation link is few, and the equipment probability that has an accident is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the full-automatic kingbolt stretching-machine of monomer.
In figure, 1-hydro-cushion oil cylinder; 2-stretching nut apparatus; 3-stretching nut slewing equipment; 4-stretching-machine housing; 5-high-voltage oil cylinder; 6-mother nut slewing equipment; 7, displacement transducer; 8, piston rod.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The full-automatic kingbolt stretching-machine of monomer, comprise kingbolt stretching-machine and balance and measurement mechanism, kingbolt stretching-machine comprises stretching nut apparatus 2, stretching nut slewing equipment 3, stretching-machine housing 4, high-voltage oil cylinder 5 and mother nut slewing equipment 6, stretching nut apparatus 2 and high-voltage oil cylinder 5 are arranged in stretching-machine housing 4, stretching nut slewing equipment 3 and mother nut slewing equipment 6 are arranged on stretching-machine housing 4, stretching nut apparatus 2 comprises stretching nut, guide plate and swiveling gear, stretching nut is connected with swiveling gear, swiveling gear engages with the gear driving pair of stretching nut slewing equipment 3, stretching nut slewing equipment 3 drives the precession of stretching nut and back-out, guide plate is placed in below swiveling gear and leads along stretching-machine housing 4 inner face, stretching nut slewing equipment 3 comprises the stretching nut gear transmission driven by stretching nut motor via reducer, mother nut slewing equipment 6 comprises the mother nut gear driving pair that mother nut motor via reducer drives, mother nut gear driving pair engages with the kingbolt external tooth that is stretched, the driving kingbolt that is stretched screws and unscrews, the displacement transducer 7 that balance and measurement mechanism comprise hydro-cushion oil cylinder 1 and be arranged on oil cylinder, hydro-cushion oil cylinder 1 is arranged on the top of stretching-machine housing 4, and the piston rod 8 of hydro-cushion oil cylinder stretches in stretching-machine housing 4 and is dynamically connected with the stretching slide nut in stretching nut apparatus 2, displacement transducer 7 is arranged on hydro-cushion oil cylinder 1, and the probe of displacement transducer 7 is arranged in the piston rod 8 of hydro-cushion oil cylinder, and displacement transducer 7 is connected with automatic control unit by holding wire.Control unit is single board computer or the computer of preset control program.
Working procedure is mainly divided into kingbolt pretension and kingbolt to unscrew two courses of work, and specific implementation method is as follows:
1. kingbolt pretension process
1) kingbolt stretching-machine is placed on top cover of reactor pressure vessel flange lightly, as shown in Figure 1.Now, the stretching nut in stretching nut apparatus 2 is by position shown in kingbolt jack-up to Fig. 1, and measured by balance and measurement mechanism 1, data are its home position numerical value and by control unit record, during stretching lift nut, guide plate play the guiding role.
2) motor in stretching nut slewing equipment 3 is started, motor via reducer, gear drive adjutant motion and moment of torsion pass to the swiveling gear in stretching nut apparatus 2, swiveling gear drives stretching nut rotation, by the stretching screw thread position of stretching nut rotation direction kingbolt, when balance and measurement mechanism 1 record stretching nut be screwed into the stretching screw thread position of kingbolt time, stretching nut slewing equipment 3 quits work, now balance and measurement mechanism 1 measured by data be kingbolt initial value and by control unit record.
3) Hydraulic Station is started, the piston of high-voltage oil cylinder 5 is moved up, by the stretching nut upwards jack-up in stretching nut apparatus 2, thus kingbolt is stretched, when starting Hydraulic Station and reaching the pressure of regulation, high-voltage oil cylinder 5 pressurize, now balance and measurement mechanism 1 measure total length that bolt is stretched and by control unit record.
4) start the motor in mother nut slewing equipment 6, motor via reducer, gear drive adjutant motion and moment of torsion pass to mother nut, and when the moment of torsion of motor reaches setting, motor stalls, now mother nut tightens.
5) by high-voltage oil cylinder 5 pressure release, make kingbolt be in Pre strained state, now data measured by balance and measurement mechanism 1 are the elongation that is finally stretched of bolt and by control unit record.
6) motor reversal in stretching nut slewing equipment 3 is started, the swiveling gear passed to by reductor, gear drive adjutant motion and moment of torsion in stretching nut apparatus 2 of motor, swiveling gear drives stretching nut rotation, by the stretching screw thread position of stretching nut upwards whiz kingbolt, when balancing and measured by measurement mechanism 1, data are its home position numerical value, stretching nut revolves and screws out from the stretching screw thread position of kingbolt, and stretching nut slewing equipment 3 quits work.
7) kingbolt stretching-machine is shifted out from top cover of reactor pressure vessel flange, carry out next group kingbolt pretension.
2. kingbolt unscrews process
1) kingbolt stretching-machine is placed on top cover of reactor pressure vessel flange lightly, as shown in Figure 1.Now, the stretching nut in stretching nut apparatus 2 by position shown in kingbolt jack-up to Fig. 1, balance and measurement mechanism 1 measured by data be its home position numerical value by control unit record, during stretching lift nut, guide plate play the guiding role.
2) motor in stretching nut slewing equipment 3 is started, motor via reducer, gear drive adjutant motion and moment of torsion pass to the swiveling gear in stretching nut apparatus 2, swiveling gear drives stretching nut rotation, by the stretching screw thread position of stretching nut rotation direction kingbolt, when balance and measurement mechanism 1 record stretching nut be screwed into the stretching screw thread position of kingbolt time, stretching nut slewing equipment 3 quits work, and now data measured by balance and measurement mechanism 1 are the elongation that is finally stretched of kingbolt and by control unit record.
3) Hydraulic Station is started, the piston of high-voltage oil cylinder 5 is moved up, by the stretching nut upwards jack-up in stretching nut apparatus 2, thus kingbolt is stretched, when balance and measurement mechanism 1 measure when bolt reaches pretension total be stretched length value time, high-voltage oil cylinder 5 pressurize.
4) start the motor reversal in mother nut slewing equipment 6, motor via reducer, gear drive adjutant motion and moment of torsion pass to mother nut, and when the moment of torsion of motor reaches setting, motor stalls, now mother nut is back-outed.
5) by high-voltage oil cylinder 5 pressure release, kingbolt is made to be in original state.
6) motor reversal in stretching nut slewing equipment 3 is started, motor via reducer, gear drive adjutant motion and moment of torsion pass to the swiveling gear in stretching nut apparatus 2, swiveling gear drives stretching nut rotation, by the stretching screw thread position of stretching nut upwards whiz kingbolt, when balancing and measured by measurement mechanism 1, data are its home position numerical value, stretching nut revolves and screws out from the stretching screw thread position of kingbolt, and stretching nut slewing equipment 3 quits work.
7) kingbolt stretching-machine is shifted out from top cover of reactor pressure vessel flange, carry out next group kingbolt and unscrew.
Claims (2)
1. the full-automatic kingbolt stretching-machine of monomer, comprise kingbolt stretching-machine, kingbolt stretching-machine comprises stretching nut apparatus (2), stretching nut slewing equipment (3), stretching-machine housing (4), high-voltage oil cylinder (5) and mother nut slewing equipment (6), stretching nut apparatus (2) and high-voltage oil cylinder (5) are arranged in stretching-machine housing (4), stretching nut slewing equipment (3) and mother nut slewing equipment (6) are arranged on stretching-machine housing (4), stretching nut apparatus (2) comprises stretching nut, guide plate and swiveling gear, stretching nut is connected with swiveling gear, swiveling gear engages with the gear driving pair of stretching nut slewing equipment (3), stretching nut slewing equipment (3) drives stretching nut precession and back-out, guide plate is placed in below swiveling gear and leads along stretching-machine housing (4) inner face, stretching nut slewing equipment (3) comprises the stretching nut gear transmission driven by stretching nut motor via reducer, mother nut slewing equipment (6) comprises the mother nut gear driving pair that mother nut motor via reducer drives, mother nut gear driving pair engages with the kingbolt external tooth that is stretched, the driving kingbolt that is stretched screws and unscrews, it is characterized in that, the full-automatic kingbolt stretching-machine of described monomer also comprises balance and measurement mechanism, balance and measurement mechanism comprise hydro-cushion oil cylinder (1) and are arranged on the displacement transducer (7) on oil cylinder, described hydro-cushion oil cylinder is arranged on the top of stretching-machine housing (4), and the piston rod (8) of hydro-cushion oil cylinder stretches in stretching-machine housing and is dynamically connected with the stretching slide nut in stretching nut apparatus (2), institute's displacement sensors (7) is arranged on hydro-cushion oil cylinder (1), the probe of displacement transducer (7) is arranged in the piston rod (8) of hydro-cushion oil cylinder, and institute's displacement sensors (7) is connected with automatic control unit by holding wire.
2. the full-automatic kingbolt stretching-machine of monomer according to claim 1, is characterized in that; Described automatic control unit is single board computer or the computer of preset control program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851472.3U CN204353747U (en) | 2014-12-29 | 2014-12-29 | The full-automatic kingbolt stretching-machine of monomer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851472.3U CN204353747U (en) | 2014-12-29 | 2014-12-29 | The full-automatic kingbolt stretching-machine of monomer |
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| CN204353747U true CN204353747U (en) | 2015-05-27 |
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| CN201420851472.3U Active CN204353747U (en) | 2014-12-29 | 2014-12-29 | The full-automatic kingbolt stretching-machine of monomer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994589A (en) * | 2018-08-03 | 2018-12-14 | 南通高盛机械制造有限公司 | A kind of Automatic-drawing head |
| CN111351457A (en) * | 2020-02-21 | 2020-06-30 | 国家电网有限公司 | Method and device for measuring residual elongation of top cover bolt of pumped storage unit |
| CN114211234A (en) * | 2021-12-21 | 2022-03-22 | 一重集团大连核电石化有限公司 | Pull rod balancing device of single bolt stretcher |
-
2014
- 2014-12-29 CN CN201420851472.3U patent/CN204353747U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994589A (en) * | 2018-08-03 | 2018-12-14 | 南通高盛机械制造有限公司 | A kind of Automatic-drawing head |
| CN111351457A (en) * | 2020-02-21 | 2020-06-30 | 国家电网有限公司 | Method and device for measuring residual elongation of top cover bolt of pumped storage unit |
| CN111351457B (en) * | 2020-02-21 | 2022-01-25 | 国家电网有限公司 | Method and device for measuring residual elongation of top cover bolt of pumped storage unit |
| CN114211234A (en) * | 2021-12-21 | 2022-03-22 | 一重集团大连核电石化有限公司 | Pull rod balancing device of single bolt stretcher |
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