CN101546614B - Gripping apparatus for sealed tank with damaged assembly - Google Patents
Gripping apparatus for sealed tank with damaged assembly Download PDFInfo
- Publication number
- CN101546614B CN101546614B CN2009101309435A CN200910130943A CN101546614B CN 101546614 B CN101546614 B CN 101546614B CN 2009101309435 A CN2009101309435 A CN 2009101309435A CN 200910130943 A CN200910130943 A CN 200910130943A CN 101546614 B CN101546614 B CN 101546614B
- Authority
- CN
- China
- Prior art keywords
- push rod
- cylinder
- gripping apparatus
- bearing pin
- force
- 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.)
- Active
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 description 14
- 239000000446 fuel Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 208000036829 Device dislocation Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a gripper for a sealed tank with a damaged assembly, which mainly comprises a gripper body connected with a cylinder, an ejector rod arranged inside the gripper body and the cylinder, claws fixed on the gripper body through pin shafts, two claws arranged on the same plane, a cam arranged at the lower end of the ejector rod, two rows of annular grooves arranged at the upper end of the ejector rod, a star block connected with the ejector rod through pin shafts, the star block capable of rotating around a shaft, an opening device connected with the upper end of the ejector rod through a pull rod, and a force limiter arranged on the cylinder, wherein the limiting force of the force limiter is greater than the sum of the weights of the pull rod, the ejector rod, the star block and the pin shaft and is smaller than the sum of the weights of the opening device, the force limiter, the cylinder, the gripper body, a roller. The device has simple structure and good reliability, and is suitable for the gripping apparatus of the sealed tank of the damaged component.
Description
Technical field
The present invention relates to the fuel assembly automatic grasper field of reactor engineering technical field, be specifically related to a kind of grab handle for sealed pot with breakage component.
Background technology
In the reactor refuling engineering; Have that many majority operation environment has hot to operating process new, irradiated fuel assembly, spentnuclear fuel gets into when preserving the pond access and also will operate under water; Personnel can not be approaching in these operating process, must adopt the special-purpose gripping apparatus that grasps fuel assembly.And the shape of different fuel assemblies has nothing in common with each other in reactor; Therefore need the different gripping apparatus of design to realize its extracting, releasing operation; At present, because the singularity of fuel assembly, domestic existing gripping apparatus complex structure, not easy to operate and be not suitable for the sealed pot with breakage component shape at present.
Summary of the invention
The present invention has overcome deficiency of the prior art, a kind of simple in structure, good reliability is provided, has been applicable to the gripping apparatus of sealed pot with breakage component.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of grab handle for sealed pot with breakage component, it is mainly the gripping apparatus body and is connected with cylinder, and push rod is in the inside of gripping apparatus body and cylinder; Claw is fixed on the gripping apparatus body through bearing pin, and two claws at grade, and the push rod bottom is provided with cam; The upper end is provided with two row's ring grooves, and the star piece is to be connected with push rod through bearing pin, and the star piece can rotate around axle; The push rod upper end connects opening device through pull bar; Cylinder is provided with force-limiting device, and the restraint of described force-limiting device is greater than the weight sum of pull bar, push rod, star piece, claw, bearing pin, and the while is less than the weight sum of force-limiting device, cylinder, gripping apparatus body, roller, bearing pin, bearing pin and claw.
Described gripping apparatus body is threaded with cylinder.Described pull bar is connected with push rod with the mode that is threaded.Described opening device is that upper barrel body and flange are formed through screw, spring shim peace spacers.Described force-limiting device is made up of steel ball, guide pillar, spring and set screw.The center of described flange has the taper hole of two sideband taperings, also has osculum on the flange.Have the aperture of draining on the wall of cylinder.Described upper shell top is connected with control lever.
Compared with prior art; The invention has the beneficial effects as follows: this device adopts a force-limiting device and opening device to realize the extracting and the release of assembly; Opening device is independent with respect to the main body of gripping apparatus, can adjust the stroke that opening device opens or closes claw as required easily, opens by gravity and closes claw; This apparatus structure is simple, easy to operate, good reliability.
Description of drawings
The schematic perspective view of Fig. 1 gripping apparatus
The cut-open view of Fig. 2 gripping apparatus
The empty gripping apparatus of Fig. 3 removes the state that grasps
Fig. 4 opening device touches the state of push rod downwards
Fig. 5 opening device promotes the state of push rod to the stroke end downwards
Fig. 6 opening device moves upward to pull bar state topmost
Fig. 7 opening device drives the state that push rod moves to the stroke end and catches load
Fig. 8 is in place the state that the back opening device touches push rod downwards
Fig. 9 is in place the back opening device and promotes the state of push rod to lower position downwards
Figure 10 is in place the back opening device and moves upward to pull bar state topmost
Figure 11 is in place the back opening device and upwards drives the state of pull bar to the only remaining hole of upper position gripping apparatus
1 upper barrel body, 2 screws, 3 spring shims, 4 flat shims, 5 flanges, 6 pull bars, 7 push rods, 8 steel balls, 9 guide pillars, 10 springs, 11 set screw, 12 star pieces, 13 cylinders, 14 gripping apparatus bodies, 15 bearing pins, 16 rollers, 17 bearing pins, 18 bearing pins, 19 claws, 20 sealed pot with breakage component, 21 control lever, 22 lifting bolts, 23 osculums, 24 apertures
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As shown in Figure 1, this device is mainly gripping apparatus body 14 and cylinder 13 through being threaded, and has the aperture 24 of draining on the wall of cylinder 13; Push rod 7 is in the inside of gripping apparatus body 14 and cylinder 13, and claw 19 is fixed on the gripping apparatus body 14 through bearing pin 18, and two claws 19 at grade; Push rod 7 bottoms are provided with cam, and the upper end is provided with two row's ring grooves, and star piece 12 is fixed on the push rod 7 through bearing pin 15; Star piece 12 can rotate around bearing pin 15, and key is that push rod 7 upper ends are connected with opening device through pull bar 6; Cylinder 13 is provided with force-limiting device, and force-limiting device is made up of steel ball 8, guide pillar 9, spring 10 and set screw 11.Opening device is responsible for the opening and closing of gripping apparatus claw, and opening device is made up of upper barrel body 1, screw 2, spring shim 3, flat shim 4 and flange 2, and upper barrel body 1 is linked together by securing member screw 2, spring shim 3 and flat shim 4 with flange 5.Opening device links to each other with push rod 7 through pull bar 6, and wherein pull bar 6 and push rod 7 are through being threaded.The restraint of described force-limiting device is greater than the weight sum of pull bar 6, push rod 7, star piece 12 and bearing pin 15, and the while is less than the gravity sum of upper barrel body 1, flange 5, screw 2, spring shim 3, flat shim 4, steel ball 8, guide pillar 9, spring 10, set screw 11, cylinder 13, gripping apparatus body 14, roller 16, bearing pin 17, bearing pin 18 and claw 19.Why so be provided with; Be to open and close for assurance device self; And do not rely on control lever 21 and the influence that sealed pot with breakage component 20 brings, and guarantee promptly that this device can ownly be accomplished to catch load and the action that discharges load, have nothing to do with other factors.Sealed pot with breakage component 20 expressions need load crawled or that discharge.Have the osculum 23 that is used for draining on the flange 5.
As shown in Figure 2, the mode that control lever 21 usefulness are threaded is connected with upper shell 1.Lifting bolt 22 is fixed on the top of control lever 21.The center drilling of flange 5 is the taper hole of two sideband taperings, to reduce the friction force between flange 5 and the push rod 7.
This device course of work mainly comprises extracting and discharges two processes that the extracting process comprises 5 states, shown in Fig. 3～7; The releasing unit process comprises 4 states, shown in Fig. 8～11.
The extracting process is following:
As shown in Figure 3, when this device just was placed into the top of sealed pot with breakage component 20, claw 19 was in the state of opening, and the steel ball 8 of force-limiting device embeds in the ring groove of push rod 7 tops near top.Opening device is at the top of pull bar 6.
As shown in Figure 4, opening device moves downward along pull bar 6, and until lucky contact push rod 7, force-limiting device limits push rod 7 in this process, and push rod 7 is motionless.Claw 19 still is in the state of opening.If find that in this process the position that this device is aimed at is not that the operator is required, promptly be placed into this device the crawl position of a mistake, the operator is as long as upwards mention this device, and this device will be got back to state shown in Figure 3, can avoid this maloperation.
As shown in Figure 5, the action of gravity of opening device is on push rod 7, and the restriction that promotes push rod 7 breakthrough force-limiting devices moves downward, and moves to the position of stroke end until push rod 7.Claw 19 is in open mode always in this process, and star piece 12 is along with push rod moves downward, star piece 12 since with gripping apparatus body 14 on the tapered protrusion touching and turn over an angle counterclockwise.
As shown in Figure 6, opening device moves upward and reaches the top of pull bar 6, and when promptly opening device upwards contacted pull bar 6 just, the position of push rod 7 did not change.
As shown in Figure 7, when opening device continued to move upward, opening device took pull bar 6 to and moves upward with push rod 7; Star piece 12 since with cylinder 13 in stepped hole the plane touching and turn over a very big angle counterclockwise, become endways state by the state of horizontal stroke, push rod 7 can continue to move upward; Move to its stroke end until push rod 7; The steel ball 8 of force-limiting device embeds on the push rods 7 and occupy in the ring groove of bottom at this moment, and claw 19 is in closed condition, and so far this device is caught sealed pot with breakage component 20; Continue to promote opening device, sealed pot with breakage component 20 will be caught away.
Dispose procedure is following:
As shown in Figure 8, after this device was in place sealed pot with breakage component 20, at first opening device moved downward to touching push rod 7.Force-limiting device has limited the motion of push rod 7 in this process, and promptly the position of push rod 7 does not change, and claw 19 is in closing state all the time in this process.When if the operator finds malposition that sealed pot with breakage component 20 placed in this process; Can be pulled upwardly control lever 21; This device will come back to state shown in Figure 7; Sealed pot with breakage component 20 can not be released, and can avoid sealed pot with breakage component 20 to be placed to wrong place and causes the accident.This security function of this device is come to guarantee by this section safe distance of described this device between opening device under Fig. 7 state and push rod 7.
As shown in Figure 9; Opening device is continued to move downward by position shown in Figure 8; The restriction that promotes push rod 7 breakthrough force-limiting devices moves downward the final position of its stroke; Star piece 12 turns over a low-angle counterclockwise owing to touch gripping apparatus body 14 inner tapered protrusion at this moment, and claw 19 is in open mode under push rod 7 bottom action of cam.
Shown in figure 10, opening device moves upward to pull bar 6 topmost by position shown in Figure 9, in this process, and the invariant positionization of push rod 7, the state of claw 19 is constant, still is in open mode.
Shown in figure 11; When opening device is continued to move upward by position shown in Figure 10, drive push rod 7 and move upward until moving to its stroke end, in this process; The ball 8 of force-limiting device embeds in the ring groove on push rod 7 tops; Star piece 12 since with the inwall touching of cylinder 13, withstand on the step of the stepped hole in the cylinder 13 after turning over an angle counterclockwise, claw 19 is in the state of opening always not to be changed.Opening device moves upward again, and sealed pot with breakage component 20 just is left on placement location, has only described this device to be taken away, and the claw 19 of this device is in open mode simultaneously, can carry out grasping movement next time.
Claims (6)
1. grab handle for sealed pot with breakage component, its primary structure is that gripping apparatus body (14) is connected with cylinder (13), push rod (7) is in the inside of gripping apparatus body (14) and cylinder (13); Claw (19) is fixed on the gripping apparatus body (14) through first bearing pin (18); Roller (16) is configured in the upper end of claw (19) through the 3rd bearing pin (17), and two claws (19) at grade, and push rod (7) bottom is provided with cam; The upper end is provided with two row's ring grooves; Star piece (12) is connected with push rod (7) through second bearing pin (15), and star piece (12) can rotate around second bearing pin (15), it is characterized in that; Push rod (7) upper end connects opening device through pull bar (6); Opening device is that upper barrel body (1) and flange (5) are formed through screw (2), spring shim (3) and flat shim (4) are fixing, and cylinder (13) is provided with force-limiting device, and the restraint of described force-limiting device is greater than the weight sum of pull bar (6), push rod (7), star piece (12), second bearing pin (15); While is less than the weight sum of opening device, force-limiting device, cylinder (13), gripping apparatus body (14), roller (16), the 3rd bearing pin (17), first bearing pin (18) and claw (19); Described force-limiting device is made up of steel ball (8), guide pillar (9), spring (10) and set screw (11), and two claws (19) are when being in open mode, and the steel ball of force-limiting device (8) embeds in the ring groove of push rod (7) upper end near top; Two claws (19) are when being in closed condition, and said steel ball (8) embeds push rod (7) upper end and occupy in the ring groove of bottom.
2. grab handle for sealed pot with breakage component according to claim 1 is characterized in that, described gripping apparatus body (14) is threaded with cylinder (13).
3. grab handle for sealed pot with breakage component according to claim 1 is characterized in that, described pull bar (6) is connected with push rod (7) with the mode that is threaded.
4. grab handle for sealed pot with breakage component according to claim 1 is characterized in that, the center of described flange (5) has the taper hole of two sideband taperings.
5. grab handle for sealed pot with breakage component according to claim 1 is characterized in that, has osculum (23) on the described flange (5).
6. grab handle for sealed pot with breakage component according to claim 1 and 2 is characterized in that, has the aperture (24) of draining on the wall of described cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101309435A CN101546614B (en) | 2009-04-21 | 2009-04-21 | Gripping apparatus for sealed tank with damaged assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101309435A CN101546614B (en) | 2009-04-21 | 2009-04-21 | Gripping apparatus for sealed tank with damaged assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101546614A CN101546614A (en) | 2009-09-30 |
| CN101546614B true CN101546614B (en) | 2012-07-04 |
Family
ID=41193680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101309435A Active CN101546614B (en) | 2009-04-21 | 2009-04-21 | Gripping apparatus for sealed tank with damaged assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101546614B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555312B (en) * | 2017-09-30 | 2019-04-16 | 中核四0四有限公司 | A kind of hanging apparatus and hanging method for clamping at a distance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043817A (en) * | 1989-12-28 | 1990-07-11 | 清华大学 | Passive delivery gravity-type hydraulic gripping method and device |
| CN1145523A (en) * | 1995-05-17 | 1997-03-19 | 里尔有限公司 | Method and appts. for taking nuclear fuel assembly into reactor core |
| CN1713306A (en) * | 2005-08-05 | 2005-12-28 | 清华大学 | Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled |
| CN1713304A (en) * | 2005-07-29 | 2005-12-28 | 清华大学 | Long-range picker of fuel ball of ball bed high-temperature air cooled reactor |
| CN101271738A (en) * | 2008-04-25 | 2008-09-24 | 上海核工程研究设计院 | Clamping head for fuel rod replacing device |
-
2009
- 2009-04-21 CN CN2009101309435A patent/CN101546614B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043817A (en) * | 1989-12-28 | 1990-07-11 | 清华大学 | Passive delivery gravity-type hydraulic gripping method and device |
| CN1145523A (en) * | 1995-05-17 | 1997-03-19 | 里尔有限公司 | Method and appts. for taking nuclear fuel assembly into reactor core |
| CN1713304A (en) * | 2005-07-29 | 2005-12-28 | 清华大学 | Long-range picker of fuel ball of ball bed high-temperature air cooled reactor |
| CN1713306A (en) * | 2005-08-05 | 2005-12-28 | 清华大学 | Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled |
| CN101271738A (en) * | 2008-04-25 | 2008-09-24 | 上海核工程研究设计院 | Clamping head for fuel rod replacing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101546614A (en) | 2009-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101740149B (en) | Mechanical self-locking fuel assembly gripping apparatus | |
| CN201331933Y (en) | Gripping tool for spent fuel assembly | |
| US3604746A (en) | Nuclear reactor control element gripper and drive apparatus | |
| US9449722B2 (en) | Gripping and locking/unlocking system, and application to the handling of nuclear materials specimen holders | |
| CN101546614B (en) | Gripping apparatus for sealed tank with damaged assembly | |
| CN112863715B (en) | Rotary type material changing special structure for replacing control rod assembly moving body | |
| CN201477905U (en) | Gripping tool of damaged assembly sealing tank | |
| CN107487708B (en) | Suspender | |
| CN101540213A (en) | Fuel assembly transfer machine | |
| CN101543987B (en) | Tool for taking and placing sleeve of spent fuel assembly inclined conveyor | |
| CN101740148B (en) | Gripper for irradiation sample of nuclear power plant | |
| CN102515012B (en) | Electromagnetic grabbing tool for nuclear power plant | |
| US2924483A (en) | Fuel handling mechanism | |
| CN103077755A (en) | Rod bundle grabbing tool | |
| CN207645565U (en) | Elevator pit mechanical stopping device | |
| CN202307176U (en) | Rod cluster grabbing tool | |
| CN214943377U (en) | Ratchet type cover plate locking device | |
| CN102376375B (en) | Underwater operation device for grabbing end part fitting of nuclear fuel assembly | |
| CN206985126U (en) | A kind of cylinder barrel is piled up with pawl type clamping device | |
| US3175720A (en) | Fuel element handling device | |
| CN203557376U (en) | Smart-type manipulator | |
| CN210103296U (en) | Passive gripping apparatus for isotope production | |
| CN215358478U (en) | Spent fuel basket operation tool based on gravity type automatic gripping apparatus | |
| CN201383352Y (en) | Fuel assembly transfer machine | |
| CN107743729B (en) | One kind revolution crosshead Automatic hook block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |