CN206328053U - A kind of self-balancing type fuel assembly grasping mechanism - Google Patents
A kind of self-balancing type fuel assembly grasping mechanism Download PDFInfo
- Publication number
- CN206328053U CN206328053U CN201621222620.0U CN201621222620U CN206328053U CN 206328053 U CN206328053 U CN 206328053U CN 201621222620 U CN201621222620 U CN 201621222620U CN 206328053 U CN206328053 U CN 206328053U
- Authority
- CN
- China
- Prior art keywords
- fuel assembly
- lower carriage
- self
- grasping mechanism
- power transmission
- 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.)
- Expired - Fee Related
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model provides a kind of self-balancing type fuel assembly grasping mechanism, including rolling wheel guide rails, upper balance rollers, power transmission shaft, lower carriage, upper bracket, equilibrium cam, fuel assembly hook, the upper balance rollers are restricted to be translated in rolling wheel guide rails, it is fixedly connected below the rolling wheel guide rails with power transmission shaft upper end, in the middle of the power transmission shaft bottom insertion lower carriage, the lower carriage top is located in upper bracket, the upper bracket top is installed on bearing by journal bearing, and upper bracket can be around axial-rotation；The upper bracket bottom is connected by equilibrium cam and lower carriage；The fuel assembly hook is notching construction inside fuel assembly hook, power transmission shaft lower end is moved up and down in groove on lower carriage.A kind of self-balancing type fuel assembly grasping mechanism described in the utility model, available for the balance of fuel hook is maintained, so as to realize stable vertical-lifting and the release of fuel assembly.
Description
Technical field
The utility model belongs to Application of Nuclear Technology field, more particularly, to a kind of self-balancing type fuel assembly grasping mechanism.
Background technology
, it is necessary to which old fuel assembly in reactor is removed and by new combustion during nuclear reactor first fuel loading and overhaul
Expect that component loads reactor, and fuel assembly grasping mechanism is the critical component directly contacted with fuel assembly.Due to fuel stack
Part is in slim-lined construction, and crawl hook hook when capturing fuel assembly is easy to tilt, and causes safety and stability poor.For
Such case, how to keep fuel assembly filling and uninstall process stability be fuel assembly grasping mechanism key technology it
One.
The content of the invention
In view of this, the utility model is directed to a kind of self-balancing type fuel assembly grasping mechanism, keeps firing with effective
Mechanism vertical and stably is expected during component crawl, in the stability and fuel assembly hoisting process that improve crawl structure
Security.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of self-balancing type fuel assembly grasping mechanism, including rolling wheel guide rails, upper balance rollers, power transmission shaft, lower carriage, on
Support, equilibrium cam, fuel assembly hook, the upper balance rollers are restricted to be translated in rolling wheel guide rails, the roller
It is fixedly connected below guide rail with power transmission shaft upper end, in the middle of the power transmission shaft bottom insertion lower carriage, the lower carriage top is located at
In upper bracket, the upper bracket top is installed on bearing by journal bearing, and upper bracket can be around axial-rotation；The upper bracket
Bottom is connected by equilibrium cam and lower carriage；The fuel assembly hook is on lower carriage, and fuel assembly hook inside is
Notching construction, power transmission shaft lower end is moved up and down in groove.
Further, the equilibrium cam is connected with upper and lower bracket respectively by rotating pair, and equilibrium cam is installed on support
Outside.
Further, the upper balance rollers are connected centrally through connecting rod with exterior power system, and the connecting rod can enclose
Around the rotation of upper balance rollers.
Further, there is step design the lower end of the power transmission shaft, for being coordinated with fuel assembly hook.
Further, the equilibrium cam is mechanism symmetrical above and below, and centre has compared with pace, for disperseing equilibrium cam
Gravity, improves the stability of equilibrium cam.
Further, the bottom of the lower carriage is hollow structure, and structure is up-narrow and down-wide, for disperseing gravity, under raising
Support balance quality.
Further, the difference of the upper bracket internal diameter and lower carriage top external diameter is the limiting value of power transmission shaft horizontal displacement.
Further, the fuel assembly hook is installed on lower carriage by rotating pair.
The beneficial effects of the utility model：By using the grasping mechanism in the utility model, fuel can be effectively kept
Mechanism vertical and stably during component crawl, improves the peace in the stability and fuel assembly hoisting process of crawl structure
Quan Xing.
Brief description of the drawings
Fig. 1 is the overall structure chart of fuel assembly grasping mechanism；
Fig. 2 is the shaft side figure of equilibrium cam；
Fig. 3 is the shaft side figure that upper balance rollers and guide rail coordinate；
Fig. 4 is equilibrium cam and upper balance rollers synergy schematic diagram during fuel assembly crawl.
Description of reference numerals：
1- rolling wheel guide rails；The upper balance rollers of 2-；3- power transmission shafts；4- lower carriages；5- bearings；6- bearings；7- upper brackets；8 is flat
Weigh cam；9- fuel assembly hooks；10- fuel assemblies；11- connecting rods.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate
Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of self-balancing type fuel assembly grasping mechanism, including rolling wheel guide rails 1, upper balance rollers 2, transmission
Axle 3, lower carriage 4, upper bracket 7, equilibrium cam 8, fuel assembly hook 9, fuel assembly 10, the upper balance rollers 2 are limited
Translated in the track of rolling wheel guide rails 1, the lower section of rolling wheel guide rails 1 is connected by pin with the upper end of power transmission shaft 3, described to pass
In the middle of the fit beneath of moving axis 3 insertion lower carriage 4, for protecting the outer surface of power transmission shaft 3, the top of lower carriage 4 is located at upper bracket 7
Interior, the upper bracket 7 is installed on bearing 5 by journal bearing, and upper bracket 7 can be around axial-rotation；The bottom of upper bracket 7 leads to
Cross and connected provided with the equilibrium cam 8 and lower carriage 4 for rotating pair；The fuel assembly hook 9 is on lower carriage 4, fuel assembly
The inside of hook 9 is notching construction, and the lower end of power transmission shaft 3 can be moved up and down in groove.
Wherein, the equilibrium cam 8 is connected with upper and lower bracket respectively by rotating pair, and equilibrium cam 8 is installed on outside support
Side.
Wherein, the upper balance rollers 2 are connected centrally through connecting rod 11 with exterior power system, and the connecting rod 11 can enclose
Rotated around upper balance rollers 2, by exterior power system drive, can be achieved that fuel assembly 10 is lifted and discharged.
Wherein, there is step design the lower end of the power transmission shaft 3, for being coordinated with fuel assembly hook 9.
Wherein, the equilibrium cam 8 is mechanism symmetrical above and below, and centre has compared with pace, for disperseing the weight of equilibrium cam 8
Power, improves the stability of equilibrium cam 8.The shaft side figure of equilibrium cam 8 is Fig. 2.
Wherein, the bottom of the lower carriage 4 is hollow structure, and structure is up-narrow and down-wide, only retains thin-wall construction, for disperseing
Gravity, improves the balance quality of lower carriage 4.
Wherein, the difference of the top external diameter of the internal diameter of upper bracket 7 and lower carriage 4 is the limiting value of the horizontal displacement of power transmission shaft 3.
Wherein, the fuel assembly hook 9 is installed on lower carriage 4 by rotating pair.
In whole grasping mechanism, realize that the part of self-balancing is mainly equilibrium cam 8, upper balance rollers 2 and roller and led
1 three parts of rail.Detailed process：When not lifting fuel assembly, power transmission shaft 3 and its connector are in the upper center of cylinder stent 7.If
Hook 9 can be inserted just to the centre bore of fuel assembly 10, and power transmission shaft 3 continues to move down, then can block fuel assembly 10, then carry out
Extract；If hook 9 fails to be properly inserted the center of fuel assembly 10, but the head of hook 9 can the hole of incoming fuel component 10,9, hook
Portion collides with the side of fuel assembly 10, tilts it so as to balance the active force of cam 8, the reaction force acts of equilibrium cam 8
On lower carriage 4, make balance rollers 2 by force edge rail to left movement and rotated around power transmission shaft 3, upper balance rollers 2 and guiding
Track coordinates such as Fig. 3, makes the entirety of power transmission shaft 3 to right translation, the horizontal displacement of the top and bottom of power transmission shaft 3 is identical, whole crawl
Mechanism keeps vertical.Equilibrium cam 8 and upper balance rollers 2 act synergistically as shown in Figure 4 during fuel assembly crawl.
During fuel assembly 10 is lifted and discharged, the aggregate motion of equilibrium cam 8 and upper balance rollers 2 makes power transmission shaft
3 and upper and lower bracket keep vertical.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modifications, equivalent substitutions and improvements made etc. should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of self-balancing type fuel assembly grasping mechanism, it is characterised in that：Including rolling wheel guide rails (1), upper balance rollers (2),
Power transmission shaft (3), lower carriage (4), upper bracket (7), equilibrium cam (8), fuel assembly hook (9), upper balance rollers (2) quilt
It is limited to be translated in rolling wheel guide rails (1), is fixedly connected below the rolling wheel guide rails (1) with power transmission shaft (3) upper end, it is described to pass
In the middle of moving axis (3) bottom insertion lower carriage (4), lower carriage (4) top is located in upper bracket (7), on the upper bracket (7)
Portion is installed on bearing (5) by journal bearing, and upper bracket (7) can be around axial-rotation；Upper bracket (7) bottom passes through balance
Cam (8) and lower carriage (4) connection；The fuel assembly hook (9) is on lower carriage (4), and fuel assembly hook (9) is internal
For notching construction, power transmission shaft (3) lower end is moved up and down in groove.
2. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The equilibrium cam
(8) it is connected respectively with upper and lower bracket by rotating pair, equilibrium cam (8) is installed on stent outer.
3. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The upper balance rolling
Wheel (2) is connected centrally through connecting rod (11) with exterior power system, and the connecting rod (11) can be around upper balance rollers (2) rotation
Turn.
4. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The power transmission shaft
(3) there is step design lower end, for being coordinated with fuel assembly hook (9).
5. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The equilibrium cam
(8) it is mechanism symmetrical above and below, centre has compared with pace, for disperseing equilibrium cam (8) gravity, raising equilibrium cam (8)
Stability.
6. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The lower carriage
(4) bottom is hollow structure, and structure is up-narrow and down-wide, for disperseing gravity, improves lower carriage (4) balance quality.
7. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The upper bracket
(7) difference of internal diameter and lower carriage (4) top external diameter is the limiting value of power transmission shaft (3) horizontal displacement.
8. a kind of self-balancing type fuel assembly grasping mechanism according to claim 1, it is characterised in that：The fuel assembly
Hook (9) is installed on lower carriage (4) by rotating pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621222620.0U CN206328053U (en) | 2016-11-14 | 2016-11-14 | A kind of self-balancing type fuel assembly grasping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621222620.0U CN206328053U (en) | 2016-11-14 | 2016-11-14 | A kind of self-balancing type fuel assembly grasping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206328053U true CN206328053U (en) | 2017-07-14 |
Family
ID=59287856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621222620.0U Expired - Fee Related CN206328053U (en) | 2016-11-14 | 2016-11-14 | A kind of self-balancing type fuel assembly grasping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206328053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678048A (en) * | 2018-12-05 | 2019-04-26 | 中民筑友科技投资有限公司 | A kind of prefabricated component hanging apparatus |
-
2016
- 2016-11-14 CN CN201621222620.0U patent/CN206328053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678048A (en) * | 2018-12-05 | 2019-04-26 | 中民筑友科技投资有限公司 | A kind of prefabricated component hanging apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20211114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |