The utility model content
The utility model embodiment technical matters to be solved is, provide a kind of refueling machine jaw special-purpose test platform, this test platform can authentic and valid simulation carry out Automatic Cycle extracting, lifting, decline, release movement to the fuel assembly in the actual process of reloading, realization guarantees the reliability of this parts work to refueling machine jaw function and reliable durable evaluation.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of refueling machine jaw test platform, comprising:
By base (10), upper surface (12) and the framework (1) that connects the column that the support bar (14) of described base (10), upper surface (12) constituted;
One end is fixed on described upper surface (12), and the other end connects the hydraulic system (20) of refueling machine jaw to be measured (3), and described hydraulic system (20) drives refueling machine jaw (3) and moves reciprocatingly at above-below direction;
Described framework (1) bottom is provided with balancing weight (24), and described balancing weight (24) is used for for described refueling machine jaw (3) gripping and placement.
Wherein, described refueling machine jaw (3) comprising:
Hollow tube-shape body (30), the lower end of body (30) are provided with the finger-type hook (31) that is used to grasp fuel; Be arranged with interior axle (32) and the outer wall (33) that can move in vertical direction inside and outside the body (30) respectively;
In axle (32) drive down in pneumatic system (34), body (30) moves up and down relatively, controls tightening up and opening of finger-type hook (31).
Wherein, described refueling machine jaw test platform also comprises:
Be attached to the limit detection device (4) on the described refueling machine jaw (3), described limit detection device (4) is used for detecting and limiting the stroke of described refueling machine jaw (3) under hydraulic system (20) drives, and detects and limit described interior axle (32) stroke under pneumatic system (34) drives.
Wherein, described refueling machine jaw test platform also comprises:
Be arranged at the guide pole (16) on the described support bar (14), described guide pole (16) is used to control described refueling machine jaw (3) under hydraulic system (20) drives, the movement locus when above-below direction moves reciprocatingly.
Wherein, described refueling machine jaw test platform also comprises:
The Alarm Unit that is connected with described limit detection device (4), described Alarm Unit described refueling machine jaw (3) or described in axle (32) when surpassing predetermined stroke, alarm, and interrupt the action of described hydraulic system (20) or described pneumatic system (34).
Wherein, described refueling machine jaw test platform also comprises:
Be arranged at the simulation pond of described framework (1) bottom, be used to simulate the water environment of described refueling machine jaw (3) work; Described balancing weight (24) is positioned in the described simulation pond.
Wherein, the weight of described balancing weight (24) is not less than the weight of actual fuel assembly.
Wherein, the weight of described balancing weight (24) is 1.1 times of weight of actual fuel assembly.
Wherein, described test platform framework (1) is made by metal or alloy.
The utility model refueling machine jaw test platform can authentic and valid simulation carry out Automatic Cycle extracting, lifting, decline, release movement to the fuel assembly in the actual process of reloading, realization guarantees the reliability of this parts work to refueling machine jaw function and reliable durable evaluation.
Embodiment
The utility model refueling machine jaw test platform can authentic and valid simulation carry out Automatic Cycle extracting, lifting, decline, release movement to the fuel assembly in the actual process of reloading, realization guarantees the reliability of this parts work to refueling machine jaw function and reliable durable evaluation.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, be the refueling machine jaw test platform first example structure synoptic diagram that the utility model provides, as shown in Figure 1, this refueling machine jaw test platform comprises:
By base 10, upper surface 12 and the framework 1 that connects the column that the support bar 14 of described base 10, upper surface 12 constituted.
One end is fixed on described upper surface 12, and the other end connects the hydraulic system 20 of refueling machine jaw 3 to be measured, and described hydraulic system 20 drives refueling machine jaw 3 and moves reciprocatingly at above-below direction.
Described framework 1 bottom is provided with balancing weight 24, and described balancing weight 24 is used for for described refueling machine jaw 3 grippings and placement.
The utility model refueling machine jaw test platform can authentic and valid simulation carry out Automatic Cycle extracting, lifting, decline, release movement to the fuel assembly in the actual process of reloading, realization guarantees the reliability of this parts work to refueling machine jaw function and reliable durable evaluation.
For better understanding effect of the present utility model, we at first introduce the basic structure and the principle of work of this refueling machine jaw 3, and this refueling machine jaw 3 comprises as shown in Figure 2:
Hollow tube-shape body 30, the lower end of body 30 are provided with the finger-type hook 31 that is used to grasp fuel; Be arranged with the interior axle 32 and the outer wall 33 that can move in vertical direction inside and outside the body 30 respectively; In axle 32 under pneumatic system 34 drives, body 30 moves up and down relatively, the tightening up and open of control finger-type hook 31.
Further, refueling machine fuel grabbing device shown in Figure 2 is in the state of locking, and interior axle 32 is locked in the state that stretches out, and finger-type hook 31 is locked in open configuration.At this moment, in being stuck in, locking roller bearing 35 in the upper groove 71 of fastener 7, stops interior fastener 7 and 32 motions of interior axle.
When finger-type hook 31 need tighten up, outer fastener 8 moved downward to outer groove 81 with outer wall 33 earlier and aims at locking roller bearing 35, has also aimed at the upper groove 71 of interior fastener 7 simultaneously.Lock roller bearing 35 outside groove 81 lateral deviations and move this moment, in the upper groove 71 of fastener 7, removes internal fastener 7 lockings, 32 releases thereupon of interior axle in no longer being stuck in.
After unlocking, interior fastener 7 moves upward under the driving of pneumatic system 34 with interior axle 32, and finger-type hook 31 tightens up, and aims at locking roller bearing 35 to the low groove 72 of interior fastener 7, has also aimed at the outer groove 81 of outer fastener 8 simultaneously.
Subsequently, outer fastener 8 moves upward with outer wall 33, and outer groove 81 departs from locking roller bearing 35, and in the low groove 72 of fastener 7, interior fastener 7 lockings made interior axle 32 be locked in retracted mode in locking roller bearing 35 was stuck in, and finger-type hook 31 is locked in the state of tightening up.
Further, finger-type hook 31 from be locked in the state of tightening up to release, open, as follows to the process that is locked in open configuration:
Finger-type hook 31 is locked in when tightening up state, and interior axle 32 is locked in retracted mode, and in the low groove 72 of fastener 7, fastener 7 and interior axle 32 moved downward in stoping in locking roller bearing 35 was stuck in.
When finger-type hook 31 need open, outer fastener 8 moved downward earlier with outer wall 33, aimed at locking roller bearing 35 to outer groove 81, had also aimed at the low groove 72 of interior fastener 7 simultaneously.Locking roller bearing 35 outside groove 81 lateral deviations are moved, and in the low groove 72 of fastener 7, remove the locking of internal fastener 7 and interior axle 32 in no longer being stuck in.
After unlocking, interior fastener 7 moves downward under the driving of pneumatic system 34 with interior axle 32, and finger-type hook 31 is opened, and aims at locking roller bearing 35 to the upper groove 71 of interior fastener 7, has also aimed at the outer groove 81 of outer fastener 8 simultaneously.
Subsequently, outer fastener 8 moves upward, and outer groove 81 departs from locking roller bearing 35, locking roller bearing 35 is stuck in the upper groove 81 of interior fastener 8, fastener 8 lockings in making, interior axle 32 is locked in the state that stretches out, finger-type hook 31 is locked in open configuration, gets back to state shown in Figure 2.
Further, in the refueling machine jaw 3 that present embodiment provides, the finger-type hook 31 of body 30 lower ends is connected with body 30 by hook axle 36; The inwall 311 of finger-type hook 31 curves inwardly.The lower end of interior axle 32 is provided with L type projection 321, and L type projection 321 tops contact with finger-type hook inwall 311.
When L type projection 321 moves up and down with interior axle 32, will outwards compress finger-type hook inwall 311 tops or bottom, making finger-type hook 31 serve as that axle rotates with hook axle 36, opens or tightens up.After interior axle 32 was locked, finger-type hook 31 also just was locked in corresponding state.
The finger-type hook 31 of refueling machine fuel grabbing device more specifically, shown in Figure 2 is locked in open configuration.When finger-type hook 31 need tighten up, 32 releases of interior axle also moved upward under the driving of pneumatic system 34, and L type projection 321 moves upward with interior axle 32.Because finger-type hook 31 inwalls 311 curve inwardly, L type projection 321 will outwards compress finger-type hook inwall 311 tops, and making finger-type hook 31 serves as the axle rotation with hook axle 36, thereby allows the lower end of finger-type hook 31 tighten up.After interior axle 32 was locked, finger-type hook 31 also just was locked in the state of tightening up.
Same, when finger-type hook 31 is locked in the state of tightening up, in the time of need opening, its process is as follows:
Finger-type hook 31 is locked in the state of tightening up, and L type projection 321 is resisted against the top of finger-type hook inwall 311.When finger-type hook 31 need open, 32 releases of interior axle also moved downward under the driving of pneumatic system 34, and L type projection 321 moves downward with interior axle 32.Because finger-type hook 31 inwalls 311 curve inwardly, L type projection 321 will outwards compress finger-type hook inwall 311 bottoms, and making finger-type hook 31 serves as the axle rotation with hook axle 36, thereby allows finger-type hook 31 lower ends open.After interior axle 32 was locked, finger-type hook 31 also just was locked in the state of tightening up.
Referring to Fig. 3, the refueling machine jaw test platform second example structure synoptic diagram that provides for the utility model, in the present embodiment, with structure and each functions of components of this refueling machine jaw test platform of more detailed description.
As shown in Figure 3, this refueling machine jaw test platform comprises:
By base 10, upper surface 12 and the framework 1 that connects the column that the support bar 14 of described base 10, upper surface 12 constituted.Described test platform framework 1 is made by metal or alloy, is connected and fixed by screw between base 10, upper surface 12 and the support bar 14.
Described framework 1 bottom is provided with balancing weight 24, and described balancing weight 24 is used for for described refueling machine jaw 3 grippings and placement.More specifically, the weight of described balancing weight 24 is not less than the weight of actual fuel assembly.Preferably, the weight of described balancing weight 24 is 1.1 times of weight of actual fuel assembly.
Further, be the performance of the detection refueling machine jaw prepared more, framework 1 bottom is provided with simulation pond (not shown), and balancing weight 24 is positioned in the described simulation pond.In the process that the refueling machine jaw is detected, will be filled to submergence balancing weight 24 in this simulation pond, with the actual working environment of simulation refueling machine jaw in nuclear power plant reactor, obtain test result more accurately.
Upper surface 12 is provided with hydraulic system 20, and these hydraulic system 20 1 ends are fixed on described upper surface 12, and the other end connects the hydraulic system 20 of refueling machine jaw 3 to be measured.Hydraulic system 20 is used to drive refueling machine jaw 3 and moves reciprocatingly at above-below direction.
Further, support bar 14 is provided with guide pole 16, and described guide pole 16 is used to control described refueling machine jaw 3 under hydraulic system 20 drives, the movement locus when above-below direction moves reciprocatingly.
Preferably, be pasted with limit detection device 4 on the described refueling machine jaw 3, its concrete installation site is referring to Fig. 4, described limit detection device 4 is used to detect and limit the stroke of described refueling machine jaw 3 under hydraulic system 20 drives, and detects and limit the stroke of described interior axle 32 under pneumatic system 34 drives.
The Alarm Unit (not shown) that described refueling machine jaw test platform also comprises and described limit detection device 4 mates, Alarm Unit is connected with limit detection device 4, is used for when hydraulic system 20 upper and lower spacing triggerings simultaneously occurring; Pneumatic system 34 upper and lower spacing triggerings simultaneously; During phenomenons such as jaw 3 unclamps, clamps in hydraulic system 20 risings, the decline process, and hydraulic system 20 rises, descending motion is overtime, and pneumatic system 34 rises, descending motion is overtime, alarm.This alarm mode comprises: make that malfunction indicator lamp brightens, the fault buzzer warning, and interrupt the action of described hydraulic system 20 or described pneumatic system 34.
The utility model refueling machine jaw test platform is realized full-automatic cyclic test, adopt the rise and fall of hydraulic system simulation refueling machine hoisting gear, pneumatic system is just the same with actual refueling machine pneumatic system, realize opening and tightening up of jaw, farthest simulated the action that the refueling machine jaw grasps fuel assembly.Simultaneously, the weight of the simulated fuel assembly balancing weight of this test platform is 1.1 times of natural fuel assembly, can more effectively test the performance of jaw, and test platform is put and is had self-diagnostic function, can judge the FAQs that occurs in the jaw process of the test, and have acoustic-optic alarm, realize the intellectuality of refueling machine jaw torture test, effectively refueling machine jaw permanance is identified, guaranteed the reliability of this parts work.
Referring to Fig. 5, the test flow chart of the refueling machine jaw test platform that provides for the utility model, as shown in Figure 5:
At step S100, refueling machine jaw to be measured is installed on the refueling machine jaw test platform, and jaw and test platform are adjusted to the test original state, be specially the refueling machine jaw and be in the state of tightening up, hydraulic system is in upper limit.
At step S101, hydraulic system drives the refueling machine jaw and drops to the hydraulic system lower limit, and stops at this position a period of time by setting, for example 3 seconds.At this moment, the refueling machine jaw should be in the poppet of balancing weight, and this poppet inwall is provided with groove, and the refueling machine jaw can be stuck in this groove under open configuration.
At step S102, the interior axle that pneumatic system drives the refueling machine jaw drops to lower limit, and the refueling machine jaw is opened, and is stuck in the groove of balancing weight poppet, and stops at this position a period of time by setting, for example 6 seconds.
At step S103, hydraulic system drives the refueling machine jaw and balancing weight rises to the hydraulic system upper limit, and stops at this position a period of time by setting, for example 3 seconds.
At step S104, hydraulic system drives near hydraulic system lower limit under refueling machine jaw and the balancing weight, and stops at this position a period of time, for example 3 seconds by setting.
At step S105, the interior axle that pneumatic system drives the refueling machine jaw rises to upper limit, and the refueling machine jaw is tightened up, and unclamps from the groove of balancing weight poppet, and stops at this position a period of time by setting, for example 6 seconds.
At step S106, hydraulic system drives the refueling machine jaw and rises to the hydraulic system upper limit, and stops at this position a period of time by setting, for example 3 seconds.At this moment, jaw and test platform are returned to the test original state.Repeat above-mentioned steps.
Further, the above-mentioned steps of refueling machine jaw test platform detection jaw can be divided into manual mode and automatic mode.Manual mode is mainly automatic mode starting condition is provided, and after operational mode finishes automatically, makes hydraulic system and baric systerm stroke be in safe position.
Manual mode is realized by button on the electrical control panel or switch.Be specially: manual mode selection switch is beaten in the manual mode position, and the hydraulic system upper limit does not trigger, and when selector switch pushed manual risings, hydraulic system rose, the upper limit triggering, and vertical motion stops; The hydraulic system lower limit does not trigger, and selector switch pushes manual decline, and hydraulic system descends, lower limit triggering, and down maneuver stops; When hydraulic system is in the lower limit state, selector switch is beaten at the jaw clamped position, and baric systerm descends, and carries out to clamp action; When hydraulic system is in the lower limit state, selector switch is beaten in the jaw release position, and baric systerm rises, and carries out and unclamps action; When pressing manual stop button, manual mode of operation is interrupted.After interrupting manual mode of operation, make jaw unclamp/clamp selector switch and mediate.
Similarly, automatic mode is realized by button on the electrical control panel or switch.Before the automatic mode operation, must be by manual mode, the original state, lifting hydraulic system to the upper limit that make jaw be in test request trigger.Then manually/the automatic mode selector switch dials in the automatic mode position, selector switch pushes automatic operation when beginning, operation beginning automatically, selector switch pushes automatic operation when stopping, operation stops automatically.After stopping, continuing to carry out automatic operational mode, must reach the initial conditions of automatic operational mode by manual mode as need.
The utility model refueling machine jaw test platform is realized full-automatic cyclic test, adopt the rise and fall of hydraulic system simulation refueling machine hoisting gear, pneumatic system is just the same with actual refueling machine pneumatic system, realize opening and tightening up of jaw, farthest simulated the action of refueling machine jaw extracting fuel assembly, effectively refueling machine jaw permanance is identified, guaranteed the reliability of this parts work.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.