Irradiation target grabbing device used in hot chamber
A grasping device and irradiation technology, applied in the directions of manipulators, program-controlled manipulators, chucks, etc., can solve the problems of difficult adjustment, inability to meet long-distance control and grasping targets of different sizes, etc., to reduce damage, Guarantee the effect of remote operation
Active Publication Date: 2019-07-26
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology
Existing grasping devices such as the sword-type manipulator in the hot chamber can shrink and swing to grasp, carry objects or operate tools, etc., and have many advantages, such as reliable action and high working speed, but they are not easy to adjust and cannot meet the needs of remote control and Requirements for grabbing targets of various sizes
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] The low-enriched uranium target is a cylinder with a smooth metal appearance. The length of the cylinder is generally 5cm to 35cm, and the outer diameter is Φ2cm to Φ10cm. The present invention has designed a kind of target grasper that can grasp cylinder and polygon with more than three sides, also can be used for the grasping work that manipulator can't operate in hot chamber.
[0026] The grasping device mainly considers the applicability of grasping targets of different shapes, the stability and accuracy of operation. The grasping device of the present invention is hoisted in the heat chamber through the control steel cable from the top of the heat chamber into the heat chamber. The steel rope is controlled to move up, down, left, and right, and the manipulator cooperates to grasp the target and other objects.
[0027] Such as figure 1 As...
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The invention discloses an irradiation target grabbing device used in a hot chamber. The irradiation target grabbing device comprises claw pieces, a grasping control assembly, a grabbing claw tensionadjusting assembly, a long-distance control cable and a controller, wherein the claw pieces are correspondingly in control connection with the grasping control assembly and the grabbing claw tension adjusting assembly, and the grasping control assembly and the grabbing claw tension adjusting assembly are correspondingly connected with the controller through the long-distance control cable. The irradiation target grabbing device has the beneficial effects that the designed target grabbing device can be remotely controlled outside the hot chamber by an operator through the control cable so as tobe capable of grabbing an object at any position in the hot chamber, particularly, an irradiated target is grabbed from a common target lead tank, so that the situation that a target transportation lead tank is specially designed for a hot chamber manipulator is avoided, and the opening degree of a grabbing claw can be freely adjusted to be suitable for the sizes of the spaces in the different lead tanks.
Description
technical field [0001] The invention relates to the field of nuclear industry, in particular to an irradiation target grasping device used in a hot chamber. Background technique [0002] 99m Tc drug is the most widely used radiodiagnostic drug in modern nuclear medicine. The nuclide is generally made of artificial radionuclide 99 Mo decays to a half-life of 66h. Production 99 There are many ways for Mo, but the main way is that the reactor irradiates U-235 through fission reaction 99 Mo and other products, of which 99 Mo accounts for 6.1% (mass percentage) of fission products. Uranium target ( 235 U) will undergo fission reaction under the action of thermal neutrons after entering the pile, and the reaction cross section is 586b. The fission reaction equation is: [0003] 235 U+n→ 236 U+ 99 Mo+ 134 Sn+3n [0004] Currently, 99 The main source of Mo is the use of reactors to irradiate uranium-235 ( 235 U) After fission, it is extracted and purified from the fis...
Claims
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IPC IPC(8): B25J9/10B25J9/16B25J15/08B25J13/00
CPCB25J9/104B25J9/1689B25J13/00B25J15/08
Inventor 于宁文罗志福邓新荣吴宇轩沈亦佳
Owner CHINA INSTITUTE OF ATOMIC ENERGY