CN205538827U - A probe transmission for steam generator tubes eddy current inspection - Google Patents

A probe transmission for steam generator tubes eddy current inspection Download PDF

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Publication number
CN205538827U
CN205538827U CN201521135823.1U CN201521135823U CN205538827U CN 205538827 U CN205538827 U CN 205538827U CN 201521135823 U CN201521135823 U CN 201521135823U CN 205538827 U CN205538827 U CN 205538827U
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CN
China
Prior art keywords
drive shaft
shaft
final drive
case
gear
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.)
Withdrawn - After Issue
Application number
CN201521135823.1U
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Chinese (zh)
Inventor
朱良
王家建
秦华容
丁冬平
吴海林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Institute of Nuclear Power Operation
China Nuclear Power Operation Technology Corp Ltd
Original Assignee
Research Institute of Nuclear Power Operation
China Nuclear Power Operation Technology Corp Ltd
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Application filed by Research Institute of Nuclear Power Operation, China Nuclear Power Operation Technology Corp Ltd filed Critical Research Institute of Nuclear Power Operation
Priority to CN201521135823.1U priority Critical patent/CN205538827U/en
Application granted granted Critical
Publication of CN205538827U publication Critical patent/CN205538827U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to nuclear power station steam generator tubes nondestructive testing technique specifically discloses a probe transmission for steam generator tubes eddy current inspection, including final drive case and rotatory transmission case, be equipped with a final drive shaft and the 2nd final drive shaft on the final drive case, be equipped with the rotatory transmission shaft of first rotatory transmission shaft and second on the rotatory transmission case, four piece above -mentioned transmission shafts become " X " type and arrange to pass through gear engagement with the transmission shaft, this transmission shaft is located final drive case and rotatory transmission case, fixed bevel gear on the transmission shaft, and bevel gear connects actuating mechanism, the transmission shaft drives main drive gear and rotates simultaneously with rotatory drive gear, therefore drive the final drive shaft of final drive case and the rotatory transmission shaft of rotatory transmission case rotates simultaneously, and rotatory transmission case can wholly for the final drive case rotate simultaneously, and the probe is installed on the transmission shaft, has realized installing the collection to heat -transfer pipe vortex signal.

Description

A kind of probe drive device for steam generator heat-transfer pipe vortex detection
Technical field
This utility model belongs to nuclear power station steam generator heat-transfer pipe Dynamic Non-Destruction Measurement, is specifically related to the actuating device of a kind of steam generator heat-transfer pipe vortex detecting probe.
Background technology
In nuclear power station, steam generator heat-transfer pipe is capital equipment and the pressure boundary of reactor cooling system of nuclear power station, and its pressure boundary area accounts for more than the 70% of primary Ioops border.Owing to heat-transfer pipe is the light-wall pipe of about 1mm, and operating condition is very severe, so heat-transfer pipe is the link that primary Ioops pressure boundary is the weakest.International nuclear power operational data statistics shows, about more than 50% all there is heat-transfer pipe breakage in various degree with steam generator.All regular to the steam generator heat-transfer pipe enforcement preservice inspection of domestic and international each nuclear power country and inservice inspection.
In steam generator heat-transfer pipe vortex checks, eddy current probe needs through heat-transfer pipe, and probe pull back during heat-transfer pipe carried out the collection of eddy current signal.It is thus desirable to design the drive mechanism of a kind of eddy current probe that disclosure satisfy that above-mentioned requirements.
Summary of the invention
This utility model purpose is to provide a kind of probe drive device for steam generator heat-transfer pipe vortex detection, and during eddy current probe passes heat-transfer pipe, this device carries out the collection of eddy current signal to heat-transfer pipe.
The technical solution of the utility model is as follows:
A kind of probe drive device for steam generator heat-transfer pipe vortex detection, including main transmission box and rotary drive case, described rotary drive case can relative to main transmission box, rotate about center rotating, described main transmission box is provided with the first final drive shaft and the second final drive shaft, described rotary drive case is between the first final drive shaft and the second final drive shaft, center of rotation is the first final drive shaft and the centre position of the second final drive shaft, and the side of rotary drive case retains certain interval respectively with the first described final drive shaft and the second final drive shaft;Described rotary drive case is provided with the first rotating drive shaft and the second rotating drive shaft, and the midpoint of the first rotating drive shaft and the second rotating drive shaft line is center of rotation;Described the first final drive shaft, the second final drive shaft, the first rotating drive shaft and the second rotating drive shaft all stretches out casing and becomes " X " type to arrange, the end of 4 power transmission shafts is distributed on 4 summits of " X ";
Also include the power transmission shaft that can rotate, a described power transmission shaft part is located in main transmission box, another part is located in rotary drive case, the two ends of power transmission shaft are installed with main drive gear and rotary transmission gear respectively, described main drive gear engages respectively with the first main drive gear being fixed on the first final drive shaft, the main transmission idler gear being located in main transmission box, simultaneously described in main transmission idler gear engage with the second main drive gear being fixed at the second final drive shaft top;Described rotary transmission gear engages respectively with the second swing pinion being fixed on the second described rotating drive shaft, the rotation idler gear being located in rotary drive case respectively, simultaneously described in the idler gear that rotates engage with the first swing pinion being fixed on the first described rotating drive shaft.
Above-mentioned a kind of in the probe drive device of steam generator heat-transfer pipe vortex detection: being machined with mounting groove on described main transmission box, rotary drive case is machined with projecting ends, projecting ends is arranged in the mounting groove on main transmission box by bearing.
Above-mentioned a kind of in the probe drive device of steam generator heat-transfer pipe vortex detection: described rotary drive case is externally provided with cylinder, drives and rotates relative to main transmission box.
Above-mentioned a kind of in the probe drive device of steam generator heat-transfer pipe vortex detection: being provided with bevel gear on described power transmission shaft, described bevel gear connects drive mechanism.
Above-mentioned a kind of in the probe drive device of steam generator heat-transfer pipe vortex detection: being equipped with probe on described the first final drive shaft, the second final drive shaft, the first rotating drive shaft and the second rotating drive shaft, probe is externally provided with rubber wheel.
Above-mentioned a kind of in the probe drive device of steam generator heat-transfer pipe vortex detection: in described " X " type is arranged, the adjacent final drive shaft in top and rotating drive shaft are externally provided with upper pressure wheel cover, the adjacent final drive shaft in lower section and rotating drive shaft are externally provided with the power transmission shaft encirclement that " X " type is arranged by lower pressure wheel cover, described upper pressure wheel cover and lower pressure wheel cover.
The beneficial effects of the utility model are:
By design power transmission shaft, drive the main drive gear and the rotary transmission gear that are connected with power transmission shaft to rotate simultaneously, thus drive the final drive shaft of main transmission box and the rotating drive shaft of rotary drive case to rotate simultaneously, and owing to main transmission box and rotary drive axle box bearing are installed, drive rotary drive case to rotate by cylinder or other driving structure, then rotary drive case can rotate by fixing the driving sleeve being connected little scope between the first power transmission shaft and second driving shaft with main transmission box.While i.e. rotary drive case is relative to main transmission box unitary rotation, two final drive shafts and two rotating drive shafts are that X-type is arranged, and rotate simultaneously.
If installing rubber wheel on power transmission shaft and rotating drive shaft, rubber wheel envelope installs the probe on axle, the angle rotated relative to main transmission box by regulation rotary drive case, then can regulate the thrust between adjacent rubber wheel, rubber wheel is made to compress probe, in order to avoid eddy current probe goes out to extrude and bending damage from rubber wheel.
If being arranged on outside rubber wheel at upper lower pressure wheel cover, the power transmission shaft that X-type is arranged is surrounded by upper pressure wheel cover and lower pressure wheel cover, protection rubber wheel and probe.Additionally driving rotary drive case to rotate relative to main transmission box, the structure both sides that upper pressure wheel cover and lower pressure wheel cover surround are opened respectively, and upper lower pressure wheel cover opens space, can internal rubber wheel and probe be changed rapidly.
Accompanying drawing explanation
Fig. 1 a is a kind of probe drive device schematic diagram for steam generator heat-transfer pipe vortex detection;
Fig. 1 b is that main transmission box, rotary drive case position and X-type arrange schematic diagram;
Fig. 2 is main transmission box internal structure schematic diagram;
Fig. 3 is rotary drive case internal structure schematic diagram;
Fig. 4 is upper lower pressure wheel cover schematic diagram;
In figure: 1. main transmission box;2. rotary drive case;3. the first final drive shaft;4. the second final drive shaft;5. the first rotating drive shaft;6. the second rotating drive shaft;7. main transmission box end cap;8. power transmission shaft;9. bevel gear;10. the first sleeve;11. second sleeves;12. rotary drive case end caps;13. main transmission idler gears;14. first main drive gears;15. second main drive gears;16. main drive gears;17. rotary transmission gears;18. first long axle sleeves;19. second long axle sleeves;20. driving sleeves;21. first swing pinions;22. second swing pinions;23. rotate idler gear;24. upper pressure wheel covers;25. lower pressure wheel covers;26. cylinders.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described in further detail by specific embodiment.
As illustrated in figs. ia and ib, actuating device includes main transmission box 1 and rotary drive case 2, two final drive shafts 3,4 are installed on main transmission box 1, in the middle part of described rotary drive case 2 between above-mentioned the first final drive shaft 3 and the second final drive shaft 4, center of rotation is the first final drive shaft 3 and centre position of the second final drive shaft 4.The side of rotary drive case 2 retains certain interval respectively with the first above-mentioned final drive shaft 3 and the second final drive shaft 4, rotary drive case 2 is rotated around center of rotation little scope between the first final drive shaft 3 and the second final drive shaft 4, the scope of rotational angle is retrained by gap length, and general rotational angle is 10 °~12 °.
Being provided with two rotating drive shafts 5,6 on rotary drive case 2, first final drive shaft the 3, second final drive shaft the 4, first rotating drive shaft 5 and the second rotating drive shaft 6 form " X " type and arrange, the end of 4 power transmission shafts is distributed on 4 summits of " X ".
As in figure 2 it is shown, be machined with mounting groove on main transmission box 1, rotary drive case 2 being machined with projecting ends, projecting ends is arranged in the mounting groove on main transmission box 1 by bearing, i.e. rotary drive case 2 can rotate relative to main transmission box 1 around by projecting ends.
It is machined with installing hole in mounting groove, and projecting ends is machined with installing hole.And in rotary drive case 2, power transmission shaft 8 is installed in main transmission box 1, outside power transmission shaft 8, is set with bevel gear 9 and driving sleeve 20.Power transmission shaft 8 engages with bevel gear 9.
Driving sleeve 20 realizes installing by the cooperation of above-mentioned mounting groove and the installing hole of projecting ends, power transmission shaft 8 part is positioned at main transmission box 1, end is connected with main transmission box end cap 7 bearing, and another part is positioned at rotary drive case 2, and end realizes bearing with rotary drive case end cap 12 and is connected.Power transmission shaft 8 is positioned at the part of main transmission box 1 and is installed with main drive gear 16, and power transmission shaft 8 is positioned at the part of rotary drive case 2 and is installed with rotary transmission gear 17.Power transmission shaft 8 and driving sleeve 20 bearing connect, driving sleeve 20 and rotary drive case 2 bearing connect, driving sleeve 20 fixedly mounts with main transmission box 1, the most above-mentioned power transmission shaft 8 can rotate in driving sleeve 20, driving sleeve 20 can rotate in rotary drive case 2, and power transmission shaft 8 rotates relative to the main transmission box 1 being connected fixing with driving sleeve 20.
Final drive shaft has two, is the first final drive shaft 3 and the second final drive shaft 4, and both are positioned at the both sides of power transmission shaft 8, and relative power transmission shaft 8 is symmetrically installed.First final drive shaft 3 is outer installs the first long axle sleeve 18 by bearing, the first described long axle sleeve 18 fixedly mounts with main transmission box 1, fixedly mount the first main drive gear 14 on first final drive shaft 3, and the bottom of the first final drive shaft 3 is connected with main transmission box end cap 7 bearing.The first described long axle sleeve 18 part stretches out main transmission box 1, and the first described final drive shaft 3 part stretches out the first long axle sleeve 18, and the first sleeve 10 installed by extension bearing, and the first sleeve 10 is fixing with the first long axle sleeve 18 to be connected.Installing of second final drive shaft 4 is identical with the installation of the first final drive shaft 3.Second final drive shaft 4 is outer installs the second long axle sleeve 19 by bearing, and part stretches out the second long axle sleeve 19, and the second sleeve 11 installed by extension bearing, and the second sleeve 11 is fixing with the second long axle sleeve 19 to be connected.Second long axle sleeve 19 part stretches out main transmission box 1, and fixedly mounts with main transmission box 1.Fixedly mount the second main drive gear 15 on second final drive shaft 4, be connected with main transmission box end cap 7 bearing bottom the second final drive shaft 4.
The meshing relation of gear: installing intermediate gear shaft between power transmission shaft 8 and the second final drive shaft 4, install main transmission idler gear 13 by this gear shaft, main transmission idler gear 13 engages with above-mentioned main drive gear 16 and the second main drive gear 15 respectively.Above-mentioned main drive gear 16 engages with the first above-mentioned main drive gear 14.
Drive bevel gear 9, the power transmission shaft 8 engaged with bevel gear 9 is driven to rotate, main drive gear 16 is driven to rotate, thus drive and be engaged with the first main drive gear 14 and main transmission idler gear 13, main transmission idler gear 13 drives the second main drive gear 15 to rotate, and therefore drives the first final drive shaft 3 and the second final drive shaft 4 to rotate.The rotation of power transmission shaft 8 simultaneously is also rotated travelling gear 17 and rotates.And from above-mentioned meshing relation, owing to devising main transmission idler gear 13, the rotation direction of the first final drive shaft 3 and the second final drive shaft 4 is contrary, and the second final drive shaft 4 is consistent with the rotation direction of power transmission shaft 8, and the rotation direction of the first final drive shaft 3 and power transmission shaft 8 is contrary.
As it is shown on figure 3, power transmission shaft 8 both sides being positioned at the first rotating drive shaft 5 and second rotating drive shaft 6 of rotary drive case 2, it is symmetrically installed relative to power transmission shaft 8.First rotating drive shaft 5 is installed by bearing respectively with rotary drive case end cap 12 and rotary drive case 2, and lower end fixedly mounts the first swing pinion 21, and the first rotating drive shaft 5 part stretches out rotary drive case end cap 12.Second rotating drive shaft 6 is installed by bearing respectively with rotary drive case end cap 12 and rotary drive case 2, and lower end fixedly mounts the second swing pinion 22, and the second rotating drive shaft 6 part stretches out rotary drive case end cap 12.
Installing intermediate gear shaft between the first rotating drive shaft 5 and power transmission shaft 8, this gear shaft is connected with rotary drive case 2 by bearing, and gear shaft fixed installation rotates idler gear 23.
The meshing relation of gear: the above-mentioned idler gear 23 that rotates engages respectively with the first swing pinion 21 and the power transmission shaft 8 of both sides, and above-mentioned power transmission shaft 8 and the second swing pinion 22 engage.
After driving power transmission shaft 8 that travelling gear 17 rotation is rotated, engagement due to gear, rotate idler gear 23 to rotate, second swing pinion 22 rotates simultaneously, rotating idler gear 23 drives the first swing pinion 21 being engaged with to rotate, and therefore the first rotating drive shaft 5 and the second rotating drive shaft 6 rotate simultaneously.And as the rotation relation of two final drive shafts in above-mentioned main transmission box 1, owing to devising rotation idler gear 23, therefore the rotation direction of the first rotating drive shaft 5 and the second rotating drive shaft 6 is contrary, and first rotating drive shaft 5 identical with the rotation direction of power transmission shaft 8, the second rotating drive shaft 6 is contrary with the rotation direction of power transmission shaft 8.
The drive connection of whole device is: the second final drive shaft 4 is consistent with the rotation direction of power transmission shaft 8, and the rotation direction of the first final drive shaft 3 and power transmission shaft 8 is contrary.First rotating drive shaft 5 is identical with the rotation direction of power transmission shaft 8, and the second rotating drive shaft 6 is contrary with the rotation direction of power transmission shaft 8.
Power transmission shaft and rotating drive shaft are installed probe, probe is outer installs rubber wheel, rubber wheel envelope installs the probe on axle, the angle rotated relative to main transmission box by regulation rotary drive case, then can regulate the thrust between adjacent rubber wheel, rubber wheel is made to compress probe, in order to avoid eddy current probe goes out to extrude and bending damage from rubber wheel.
As shown in Figure 4, at the second final drive shaft 4 and the upper pressure wheel cover 24 installed above of the second rotating drive shaft 6, installing lower pressure wheel cover 25 in the lower section of the first final drive shaft 3 and the first rotating drive shaft 5, upper lower pressure wheel cover 24,25 is arranged on the outside of rubber wheel.The power transmission shaft that " X " type is arranged by upper pressure wheel cover 24 and lower pressure wheel cover 25 surrounds, when cylinder 26 drives rotary drive case 2 to rotate relative to main transmission box 1, the structure both sides that upper pressure wheel cover 24 and lower pressure wheel cover 25 surround are opened respectively, upper lower pressure wheel cover opens space, can internal rubber wheel and probe be changed rapidly.

Claims (3)

1. the probe drive device for steam generator heat-transfer pipe vortex detection, including main transmission box (1) and rotary drive case (2), described rotary drive case (2) can be relative to main transmission box (1), rotate about center rotating, it is characterized in that: described main transmission box (1) is provided with the first final drive shaft (3) and the second final drive shaft (4), described rotary drive case (2) is positioned between the first final drive shaft (3) and the second final drive shaft (4), center of rotation is the first final drive shaft (3) and the centre position of the second final drive shaft (4), the side of rotary drive case (2) retains certain interval respectively with described the first final drive shaft (3) and the second final drive shaft (4);Described rotary drive case (2) is provided with the first rotating drive shaft (5) and the second rotating drive shaft (6), and the midpoint of the first rotating drive shaft (5) and the second rotating drive shaft (6) line is center of rotation;Described the first final drive shaft (3), the second final drive shaft (4), the first rotating drive shaft (5) and the second rotating drive shaft (6) all stretches out casing and becomes " X " type to arrange, the end of 4 power transmission shafts is distributed on 4 summits of " X ";
Also include the power transmission shaft (8) that can rotate, described power transmission shaft (8) part is located in main transmission box (1), another part is located in rotary drive case (2), the two ends of power transmission shaft (8) are installed with main drive gear (16) and rotary transmission gear (17) respectively, described main drive gear (16) and the first main drive gear (14) being fixed on the first final drive shaft (3), the main transmission idler gear (13) being located in main transmission box (1) engages respectively, main transmission idler gear (13) described in Tong Shi engages with the second main drive gear (15) being fixed at the second final drive shaft (4) top;Described rotary transmission gear (17) engages respectively with the second swing pinion (22) being fixed on described the second rotating drive shaft (6), the rotation idler gear (23) being located in rotary drive case (2) respectively, simultaneously described in rotation idler gear (23) (the first swing pinion (21) on 50 engages with being fixed at the first described rotating drive shaft.
A kind of probe drive device for steam generator heat-transfer pipe vortex detection, it is characterized in that: on described main transmission box (1), be machined with mounting groove, rotary drive case is machined with projecting ends on (2), and projecting ends is arranged in the mounting groove on main transmission box (1) by bearing.
A kind of probe drive device for steam generator heat-transfer pipe vortex detection, it is characterised in that: described rotary drive case (2) is externally provided with cylinder, drives and rotates relative to main transmission box (1).
CN201521135823.1U 2015-12-31 2015-12-31 A probe transmission for steam generator tubes eddy current inspection Withdrawn - After Issue CN205538827U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521135823.1U CN205538827U (en) 2015-12-31 2015-12-31 A probe transmission for steam generator tubes eddy current inspection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521135823.1U CN205538827U (en) 2015-12-31 2015-12-31 A probe transmission for steam generator tubes eddy current inspection

Publications (1)

Publication Number Publication Date
CN205538827U true CN205538827U (en) 2016-08-31

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CN201521135823.1U Withdrawn - After Issue CN205538827U (en) 2015-12-31 2015-12-31 A probe transmission for steam generator tubes eddy current inspection

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106932470A (en) * 2015-12-31 2017-07-07 核动力运行研究所 A kind of probe drive device for steam generator heat-transfer pipe vortex detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106932470A (en) * 2015-12-31 2017-07-07 核动力运行研究所 A kind of probe drive device for steam generator heat-transfer pipe vortex detection
CN106932470B (en) * 2015-12-31 2023-08-18 核动力运行研究所 Probe transmission device for vortex detection of heat transfer tube of steam generator

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Granted publication date: 20160831

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