CN205097081U - A mechanism is clutch to tube hole for steam generator detects - Google Patents
A mechanism is clutch to tube hole for steam generator detects Download PDFInfo
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- CN205097081U CN205097081U CN201520845816.4U CN201520845816U CN205097081U CN 205097081 U CN205097081 U CN 205097081U CN 201520845816 U CN201520845816 U CN 201520845816U CN 205097081 U CN205097081 U CN 205097081U
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- steam generator
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- pull bar
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Abstract
The utility model provides a mechanism is clutch to tube hole for steam generator detects, include base, jack catch and install the climbing mechanism at the base lower extreme, the through -hole has been opened from the top down to the base, the jack catch includes connecting seat, branch and a plurality of sliders that match, a plurality of pull rod, be equipped with the taper surface on the branch, branch is installed in the connecting seat upper end, the slider with pull rod one end is articulated, and the pull rod other end passes the connecting seat and follows the connecting seat bottom surface and stretch out, the slider all with the taper surface sliding fit of branch, the jack catch passes through the connecting seat and installs in the through -hole, the pull rod passes the partial accessible climbing mechanism rebound of connecting seat, still install the attach fitting on the base, the attach fitting is used for the cooperation of AND operation instrument to move operating position with this mechanism. The utility model discloses installation time is short, and the installation is reliable, can set up the fulcrum fast on the tube sheet.
Description
Technical field
The utility model relates to nuclear power field, particularly relates to a kind of pore grasping mechanism detected for steam generator.
Background technology
Nuclear power station vertical steam generator low head is a container closed, and it only has some paddle holes and manhole.Because it is by the long term of alternating thermal stress and pressure alternate stress, steam generator low head inside needs regularly to carry out ultrasonic, eddy current or visual detection.But low head inner butt welding one deck stainless steel, surface all through sanding and polishing, the therefore actual problem proposing checkout gear when detecting and how to install.
At present, when existing checkout gear is installed, have plenty of operator and enter steam generator low head inside, then by manually arranging fulcrum; Some employing manhole flanges install hold-down support, stretch out a stock, provide fulcrum, suspended fixing to steam generator low head inside.The dose of radiation that first kind of way personnel are subject to is large, large to human injury.The second mounting means complex structure, the set-up time is long, and efficiency is low.Therefore need a kind of can simply, the mechanism of fulcrum is set rapidly on tube sheet.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of easy to use, pore grasping mechanism detected for steam generator of effectively playing promptly effect, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of pore grasping mechanism detected for steam generator, comprise base, claw and the lifting body being arranged on base lower end, described base has through hole from the top down, described claw comprises Connection Block, pole and the multiple slide blocks matched, multiple pull bar, described pole is provided with taper surface, described pole is arranged on Connection Block upper end, described slide block and described pull bar one end hinged, the pull bar other end passes Connection Block and stretches out from Connection Block bottom surface, described slide block is all slidably matched with the taper surface of pole, described claw is installed in through-holes by Connection Block, described pull bar moves up by lifting body through the part of Connection Block, described base is also provided with jointing, described jointing is used for coordinating with operation tool mechanism is moved to operating position.
Preferably, described lifting body drives cylinder, and described pull bar moves up by driving the piston rod of cylinder.
Further, be provided with back-moving spring in described driving cylinder, described back-moving spring is driving between cylinder upper cover and the piston driving cylinder.
Preferably, described jointing is the assistant cylinder that above-below direction is arranged, and assistant cylinder comprises cylinder body and tapered piston, described cylinder body has multiple spacing hole on same periphery, be respectively equipped with ball in described spacing hole, the diameter of described ball is greater than the thickness of cylinder side wall; When tapered piston moves in cylinder body, the conical surface of tapered piston described ball can be ejected outside cylinder body and described ball does not depart from spacing hole.
Further, described tapered piston is positioned at the top of described spacing hole, and is provided with back-moving spring between described tapered piston and cylinder body inner top surface.
Preferably, described base is provided with the guide post with line parallel in claw.
Preferably, described base is provided with the connecting portion be connected with checkout gear.
As mentioned above, a kind of pore grasping mechanism detected for steam generator of the utility model, has following beneficial effect:
The utility model integrated level is high, and the set-up time is short, and installation process is reliable, low to the dose of radiation of operator.In use, the separating action of claw to promptly action and assistant cylinder and the operation tool of pore can be completed by a control signal the utility model, simple and convenient, increases work efficiency.
Accompanying drawing explanation
Fig. 1 is stereogram of the present utility model.
Fig. 2 is face upwarding assumption diagram of the present utility model.
Fig. 3 is top view of the present utility model.
Fig. 4 is A-A place sectional view in Fig. 3.
Fig. 5 is the structure chart of claw in the utility model.
Fig. 6 is the structural representation driving cylinder and assistant cylinder in the utility model.
Fig. 7 be in the utility model assistant cylinder and operation tool coordinate view.
Fig. 8 is using state schematic diagram of the present utility model.
In figure: 1, base 11, through hole 12, connecting portion
2, claw 21, Connection Block 22, pole
23, slide block 24, pull bar 3, lifting body
31, piston rod 32, back-moving spring 33, upper cover
34, piston 4, jointing 41, cylinder body
42, tapered piston 43, spacing hole 44, ball
45, back-moving spring 5, guide post 6, hollow pipe
61, annular groove 9, tube sheet 91, pore
Detailed description of the invention
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this description as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
Steam generator is the visual plant in nuclear power field, and with reference to figure 8, its inside is provided with tube sheet 9, described tube sheet 9 has multiple pore 91 for installing heat-transfer pipe.
As shown in figs 1 to 6, a kind of pore grasping mechanism detected for steam generator of the utility model, comprise base 1, claw 2 and be arranged on the lifting body 3 of base 1 lower end, described base 1 has through hole 11 from the top down.Described claw 2 comprises Connection Block 21, pole 22 and the multiple slide blocks 23 matched, multiple pull bar 24, described pole 22 is provided with taper surface, described pole 22 is arranged on Connection Block 21 upper end, described slide block 23 is hinged with described pull bar 24 one end, pull bar 24 other end passes Connection Block 21 and stretches out from Connection Block 21 bottom surface, described slide block 23 is all slidably matched with the taper surface of pole 22, described claw 2 is arranged in through hole 11 by Connection Block 21, described pull bar 24 moves up by lifting body 3 through the part of Connection Block 21, that is described claw 2 pole 22 is arranged in through hole 11 upward.The Connection Block 21 of claw 2 described in the present embodiment can be threaded connection and be arranged in through hole 11, also can by structure installment such as buckles in through hole 11.Mechanism in use, when claw 2 inserts in the pore of tube sheet, pull bar 24 promotes slide block 23 and moves up, and multiple slide block 23 can strut shape along the taper surface one-tenth of pole 22 and move, compress principle according to wedge, the swelling of multiple slide block 23 realizes the location and installation to entirety in pore.Base 1 in the utility model is also provided with jointing 4, and mechanism is moved to operating position for coordinating with operation tool by described jointing 4.Base 1 described in mechanism is provided with the guide post 5 with line parallel in claw 2, and then mechanism can be installed be positioned on tube sheet when operating by convenient operation person accurately, avoids repeatedly adjusting installation.
Base 1 described in mechanism is provided with the connecting portion 12 be connected with checkout gear, and described checkout gear is that fulcrum carries out coherent detection to the steam generator structure below tube sheet with mechanism.Described connecting portion 12 can be the conventional structures such as connecting hole, hook, quick union.
During specific works, when mechanism is being located promptly with pore, operation tool need to exit so that by relevant checkout equipment and mechanism with the use of, the fractionation of mechanism and operation tool is realized by electrical control.In a preferred embodiment, the assistant cylinder that described jointing 4 is arranged for above-below direction, assistant cylinder comprises cylinder body 41 and tapered piston 42, described cylinder body 41 has multiple spacing hole 43 on same periphery, be respectively equipped with ball 44 in described spacing hole 43, the diameter of described ball 44 is greater than the thickness of cylinder body 41 sidewall.When described tapered piston 42 moves in cylinder body 41, the conical surface of tapered piston 42 described ball 44 can be ejected outside cylinder body 41 and described ball 44 does not depart from spacing hole 43.In mechanism, if ball 44 diameter is less than or equal to the thickness of cylinder body 41, then tapered piston 42 can not produce action effect to ball 44.With reference to figure 4, Fig. 6 and Fig. 7, the operation tool coordinated with assistant cylinder in the present embodiment is a hollow pipe 6, and described hollow pipe 6 coordinates the inwall of one end to have annular groove 61 with assistant cylinder, described ball 44 can be stuck in described annular groove 61.Exit from annular groove 61 for the ease of ball 44, the edge of described annular groove 61 is provided with inclined-plane.Further, described tapered piston 42 is positioned at the top of described spacing hole 43, and be provided with back-moving spring 45 between described tapered piston 42 and cylinder body 41 inner top surface, normality inferior pyramidal piston 42 is because the pressure effect of back-moving spring 45, its conical surface is pressed against on ball 44 and applies a pressure to ball 44, and ball 44 can eject and enter in annular groove 61 by this pressure outside cylinder body 41.
Lifting body 3 in mechanism drives cylinder, and described pull bar 24 moves up by driving the piston rod 31 of cylinder, and then realize the promptly effect to pore.Exit from pore for the ease of claw after work 2, be provided with back-moving spring 32 in described driving cylinder, described back-moving spring 32 is driving between cylinder upper cover 33 and the piston 34 driving cylinder.When driving cylinder pressure release, because the elastic reaction of back-moving spring 32, described piston 34 can move down with piston rod 31, and pull bar 24 and slide block 23 are also just no longer subject to the effect driving cylinder, pull bar 24 and slide block 23 are fallen after rise by Action of Gravity Field, now mechanism can be taken off from tube sheet.In other embodiments, described climbing structure also can be oil cylinder or the cylinder of two-way air feed, does not need in use to use back-moving spring, specifically determines according to input cost.In addition, the piston rod 31 of cylinder is driven directly to be connected with the pull bar 24 of claw 2 in the present embodiment, thus the effective control realized pull bar 24, but arrange cumbersome when mounted like this, the present embodiment relies on the Action of Gravity Field of pull bar 24 and slide block 23 self can complete releasing swelling.
In a preferred embodiment, described driving cylinder is connected with the air inlet of assistant cylinder, realizes synchronzed press, synchronous pressure release.Under normality, the piston 34 driving cylinder is retracted state, and tapered piston 42 pairs of balls 44 of assistant cylinder have thrust.
Composition graphs 1-Fig. 8, the use step of mechanism and principle are:
(1) first gas source switch is opened, tapered piston 42 can move up, now ball 44 only gravitate, assistant cylinder is inserted in hollow pipe 6, ball 44 first presses to inside cylinder body 41 by the inwall of hollow pipe 6, then when ball 44 moves to annular groove 61 position, ball 44 matches with annular groove 61, now close gas source switch pressure release, tapered piston 42 is because the elastic force effect of Action of Gravity Field and back-moving spring 45 can fall after rise and be pressed against on ball 44 downwards, and a pressure effect is applied to ball 44, ball 44 can not be pressed towards easily inside cylinder body 41, allow the locking that mechanism and hollow pipe 6 realize to a certain extent, ensure the reliable and stable of connection.
(2) the hand-held hollow pipe 6 of operator extend into below tube sheet 9 with mechanism, according to status requirement, claw 2 and guide post 5 is inserted respectively in a pore 91.
(3) after mechanism position determines, again open gas source switch, compressed air is simultaneously to driving cylinder and assistant cylinder pressurization.Wherein drive the piston 34 of cylinder to drive piston rod 31 to move upward and then pushing drawing rod 24 allows slide block 23 move up along the taper surface of pole 22, the swelling of multiple slide block 23 realize in pore 91 the relative pore 91 of mechanism promptly, location.And assistant cylinder tapered piston 42 is because compressed-air actuated effect can move up, when tapered piston 42 moves up, its conical surface no longer produces pressure to ball 44, now, move down hollow pipe 6, ball 44 can be pushed up inside cylinder body 41 by the ramp effect of its annular groove 61, thus hollow pipe 6 is separated with assistant cylinder, also achieve hollow pipe 6 and mechanism fractionation, recalled after hollow pipe 6 and mechanism split.After this gas source switch is in open mode always, until need mechanism to take off.
(4) by related tool the equipment such as checkout gear are reached below tube sheet 9 and be connected with the bindiny mechanism 12 of mechanism, and complete related work.After finishing using, first the equipment such as checkout gear are pulled down from mechanism, then hollow pipe 6 is used again to be enclosed within assistant cylinder and to allow ball 44 coordinate with annular groove 61, then gas source switch is closed, drive cylinder and assistant cylinder pressure release simultaneously, tapered piston 42 falls after rise and is again pressed against on ball 44, and the slide block 23 simultaneously on claw 2 moves down releasing swelling, then mechanism is taken off from tube sheet 9 by hollow pipe 6.
In use, the separating action of promptly action and assistant cylinder and the hollow pipe 6 of claw 2 pairs of pores 91 can be completed by a control signal mechanism, simple and convenient.
In sum, a kind of pore grasping mechanism detected for steam generator of the utility model, uses simple, easy to operate, effectively can play point action.So the utility model effectively overcomes practical problems more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change for person skilled in the art scholar.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (7)
1. the pore grasping mechanism detected for steam generator, it is characterized in that: comprise base (1), claw (2) and be arranged on the lifting body (3) of base (1) lower end, described base (1) has through hole (11) from the top down, described claw (2) comprises Connection Block (21), pole (22) and the multiple slide blocks (23) matched, multiple pull bar (24), described pole (22) is provided with taper surface, described pole (22) is arranged on Connection Block (21) upper end, described slide block (23) is hinged with described pull bar (24) one end, pull bar (24) other end passes Connection Block (21) and stretches out from Connection Block (21) bottom surface, described slide block (23) is all slidably matched with the taper surface of pole (22), described claw (2) is arranged in through hole (11) by Connection Block (21), described pull bar (24) moves up by lifting body (3) through the part of Connection Block (21), described base (1) is also provided with jointing (4), mechanism is moved to operating position for coordinating with operation tool by described jointing (4).
2. a kind of pore grasping mechanism detected for steam generator according to claim 1, it is characterized in that: described lifting body (3) drives cylinder, described pull bar (24) moves up by driving the piston rod (31) of cylinder.
3. a kind of pore grasping mechanism detected for steam generator according to claim 2, it is characterized in that: be provided with back-moving spring (32) in described driving cylinder, described back-moving spring (32) is positioned at and drives between cylinder upper cover (33) and the piston (34) driving cylinder.
4. a kind of pore grasping mechanism detected for steam generator according to claim 1, it is characterized in that: the assistant cylinder that described jointing (4) is arranged for above-below direction, assistant cylinder comprises cylinder body (41) and tapered piston (42), described cylinder body (41) has multiple spacing hole (43) on same periphery, be respectively equipped with ball (44) in described spacing hole (43), the diameter of described ball (44) is greater than the thickness of cylinder body (41) sidewall; When tapered piston (42) is mobile in cylinder body (41), the conical surface of tapered piston (42) described ball (44) can be ejected to cylinder body (41) outside and described ball (44) does not depart from spacing hole (43).
5. a kind of pore grasping mechanism detected for steam generator according to claim 4, it is characterized in that: described tapered piston (42) is positioned at the top of described spacing hole (43), and between described tapered piston and cylinder body inner top surface, be provided with back-moving spring (45).
6. a kind of pore grasping mechanism detected for steam generator according to claim 1, is characterized in that: described base (1) is provided with the guide post (5) with line parallel in claw (2).
7. a kind of pore grasping mechanism detected for steam generator according to claim 1, is characterized in that: described base (1) is provided with the connecting portion (12) be connected with checkout gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845816.4U CN205097081U (en) | 2015-10-28 | 2015-10-28 | A mechanism is clutch to tube hole for steam generator detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845816.4U CN205097081U (en) | 2015-10-28 | 2015-10-28 | A mechanism is clutch to tube hole for steam generator detects |
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| Publication Number | Publication Date |
|---|---|
| CN205097081U true CN205097081U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520845816.4U Active CN205097081U (en) | 2015-10-28 | 2015-10-28 | A mechanism is clutch to tube hole for steam generator detects |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239543A (en) * | 2016-09-30 | 2016-12-21 | 中广核检测技术有限公司 | A kind of superfine pipe diameter heat-transfer pipe of evaporator tube sheet many fingers locking gas pawl |
| CN106328229A (en) * | 2016-09-30 | 2017-01-11 | 中广核检测技术有限公司 | Special air claw for heat transfer pipe plate climbing equipment of steam generator |
| CN106438556A (en) * | 2016-09-12 | 2017-02-22 | 武汉大学 | Single-cylinder and single-piston inner hole manipulator |
| CN108458178A (en) * | 2018-01-30 | 2018-08-28 | 中山市铧禧电子科技有限公司 | A kind of test gas-cooker and air source automatic butt jointing device |
-
2015
- 2015-10-28 CN CN201520845816.4U patent/CN205097081U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438556A (en) * | 2016-09-12 | 2017-02-22 | 武汉大学 | Single-cylinder and single-piston inner hole manipulator |
| CN106239543A (en) * | 2016-09-30 | 2016-12-21 | 中广核检测技术有限公司 | A kind of superfine pipe diameter heat-transfer pipe of evaporator tube sheet many fingers locking gas pawl |
| CN106328229A (en) * | 2016-09-30 | 2017-01-11 | 中广核检测技术有限公司 | Special air claw for heat transfer pipe plate climbing equipment of steam generator |
| CN106328229B (en) * | 2016-09-30 | 2018-02-27 | 中广核检测技术有限公司 | The special jaw of steam generator heat-transfer pipe tube sheet crawling equipment |
| CN106239543B (en) * | 2016-09-30 | 2018-10-26 | 中广核检测技术有限公司 | A kind of more fingers locking pneumatic clampers of superfine pipe diameter heat-transfer pipe of evaporator tube sheet |
| CN108458178A (en) * | 2018-01-30 | 2018-08-28 | 中山市铧禧电子科技有限公司 | A kind of test gas-cooker and air source automatic butt jointing device |
| CN108458178B (en) * | 2018-01-30 | 2024-04-26 | 中山市铧禧电子科技有限公司 | Automatic butt joint device of gas stove and air source for test |
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| GR01 | Patent grant |