阅读说明：本技术 一种用于旋转靶瓣片的全自动拆卸结构 (Full-automatic dismounting structure for rotating target flap ) 是由 王盛 吕永盛 李晓博 乔朝蓬 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种用于旋转靶瓣片的全自动拆卸结构,包括卡钩、支座、瓣片、支架、滑杆及驱动装置；卡钩的下端通过支座轴连接于支架上,卡钩的上端卡接于瓣片上,卡钩的侧面开设有通孔,驱动装置驱动滑杆在通孔内移动,该结构具有可靠性高、操作简单、节约时间及成本的特点。(The invention discloses a full-automatic dismounting structure for a rotary target flap, which comprises a clamping hook, a support, a flap, a support, a sliding rod and a driving device, wherein the clamping hook is arranged on the support; the lower extreme of pothook passes through the support hub connection on the support, and the upper end joint of pothook is on the lamella, and the through-hole has been seted up to the side of pothook, and drive arrangement drive slide bar removes in the through-hole, and this structure has the characteristics of high reliability, easy operation, save time and cost.)

1. A full-automatic disassembly structure for a rotary target flap is characterized by comprising a clamping hook (1), a support (7), a flap (8), a support (9), a sliding rod (2) and a driving device;

the lower end of the clamping hook (1) is connected to the support (9) through the support (7) in a shaft mode, the upper end of the clamping hook (1) is clamped to the flap (8), a through hole is formed in the side face of the clamping hook (1), and the driving device drives the sliding rod (2) to move in the through hole.

2. The structure of the full automatic disassembly for rotating target petals according to claim 1, characterized in that the support (7) is fixed on the bracket (9), and the pin (3) passes through the lower end of the bracket (9) and the support (7).

3. The structure of full automatic disassembly for rotating target petals according to claim 1, characterized in that the end of the pin (3) is limited by a limit (4).

4. The structure of full automatic disassembly for rotating target petals according to claim 3, characterized in that the stop (4) is a cotter pin, a nut or a lock screw.

5. The structure of the full automatic disassembly for rotating target petals according to claim 1, characterized in that the driving means comprises an electromagnet body (6), an electromagnet push-pull rod (5) and a power supply for supplying electric energy, the electromagnet body (6) is opposite to one end of the electromagnet push-pull rod (5), the other end of the electromagnet push-pull rod (5) is connected with the sliding rod (2), and the electromagnet body (6) is fixed on the bracket (9).

6. The structure of full automatic disassembly for rotating target petals according to claim 5, characterized in that the electromagnet main body (6) is fixed on the bracket (9) by bolts, and the support (7) is welded on the bracket (9).

7. The fully automatic disassembly structure for rotating target flaps according to claim 1, characterized in that the hook (1) is a hook-type structure, and the bending angle of the upper end of the hook (1) is less than or equal to 90 °.

8. The structure of full automatic disassembly for rotating target petals according to claim 1, characterized in that a pair of sliding grooves are provided on the inner wall of the through hole, the ends of the sliding rod (2) being inserted in said sliding grooves.

9. The structure of full automatic disassembly for rotating target petals according to claim 1, characterized in that the petals (8) are provided with positioning holes, and the support (9) is provided with positioning pins matching with the positioning holes.

Technical Field

The invention belongs to the technical field of engineering design, and relates to a full-automatic dismounting structure for a rotary target flap.

Background

Neutrons are electrically neutral and have strong penetrability. Neutron sources have a variety of potential uses including drug therapy, isotope production, explosive/nuclear fission material detection, precious metal ore analysis, imaging, and the like. A particularly interesting area is Boron Neutron Capture Therapy (BNCT), in particular cancer therapy techniques.

The most widely used is the reactor neutron source, which is performed in a neutron-rich nuclear research reactor. However, many practical issues (such as safety, nuclear material handling, and many approaches to study the end of life and decommissioning of a stack) make this approach challenging. The accelerator neutron source is a neutron generating device which has the advantages of simple equipment, small volume, light weight and relative easy operation and control, and is the most promising method for generating high-strength pulse neutron beam current. The neutrons are produced by nuclear reactions, most commonly (d, n), (p, n), and (γ, n), etc., by bombarding an appropriate target nucleic acid with charged particles accelerated by an accelerator.

The common accelerator neutron source target is a fixed target, even when various cooling modes (such as direct-current water jet, microchannel cooling and the like) are adopted and the fixed target runs at high power (more than 15KW), the fixed target still cannot obtain good cooling effect so as to be damaged or even melted, and the vacuum target is difficult to maintain and repair and has high manufacturing cost. To solve this problem of cooling, rotating targets have come into play. Non-patent documents (Yao Yang En, Cheng Shang Wen age, etc.. Design of marking target system and numerical simulation for the temperature of target dist [ J ] nuclear technology, 2004,027(010): 787-. Patent document 3 (publication No.: 2018/CN108136200A) and patent document 4 (international publication No.: WO2018/226205a1) propose corresponding solutions: a flap-type rotating target is used in which the target is divided into a plurality of flaps.

This scheme utilizes the robot to change old and useless flap to avoid artifical exposure in the high radiation field, and the robot accomplishes the installation and the dismantlement of flap or just dismantles. When the valve is replaced, the vacuum environment needs to be destroyed to enable the robot to enter the vacuum chamber for operation, which puts high requirements on the accurate operation of the robot. The robot needs to restore the system working environment (high vacuum, high dryness, etc.) after replacing the flap, which undoubtedly requires a lot of time. Moreover, a complex robot system special for the rotary target is developed, and the manufacturing cost is increased.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a full-automatic disassembly structure for a rotary target flap, which has the characteristics of high reliability, simplicity in operation, time saving and cost saving.

In order to achieve the purpose, the full-automatic dismounting structure for the rotary target valve comprises a clamping hook, a support, a valve, a support, a sliding rod and a driving device;

the lower end of the clamping hook is connected to the support through the support shaft, the upper end of the clamping hook is clamped on the flap, a through hole is formed in the side face of the clamping hook, and the driving device drives the sliding rod to move in the through hole.

The support is fixed on the support, and the round pin axle passes the lower extreme and the support of support.

The end part of the pin shaft is limited through a limiting part.

The limiting piece is a cotter pin, a nut or a locking screw.

The driving device comprises an electromagnet main body, an electromagnet push-pull rod and a power supply for supplying electric energy, wherein the electromagnet main body is over against one end of the electromagnet push-pull rod, the other end of the electromagnet push-pull rod is connected with a sliding rod, and the electromagnet main body is fixed on the support.

The electromagnet main body is fixed on the bracket through a bolt, and the support is welded on the bracket.

The hook is in a hook-shaped structure, and the bending angle of the upper end of the hook is less than or equal to 90 degrees.

A pair of sliding grooves are formed in the inner wall of the through hole, and the end portions of the sliding rods are inserted into the sliding grooves.

The valve is provided with a positioning hole, and the bracket is provided with a positioning pin matched with the positioning hole.

The invention has the following beneficial effects:

the full-automatic disassembly structure for the rotating target valve disclosed by the invention has the advantages that when the full-automatic disassembly structure is specifically operated, the slide rod is pushed and pulled through the driving device, so that the clamping hook loosens or tightens the valve, the replacement of the waste valve and the installation of a new valve are completed, the structure is simple, the processing and the manufacturing are easy, the size and the weight of the rotating target cannot be obviously increased, meanwhile, the manual operation is not needed to enter a high-radiation environment, the vacuum environment is not needed to be destroyed when the valve is disassembled, the time consumption for completing the replacement of the valve is very small, the rotating target is ensured to quickly recover to normally work, the reliability and the safety are higher.

Drawings

FIG. 1a is a schematic structural view of the present invention;

FIG. 1b is a side view of FIG. 1 a;

FIG. 2a is a schematic view of the structure of the present invention in use;

FIG. 2b is a side view of FIG. 2 a;

FIG. 2c is a side view of FIG. 2 a;

fig. 3a is a schematic structural view of the hook 1;

fig. 3b is another structural diagram of the hook 1;

FIG. 4 is a position view of a locating pin and locating hole;

fig. 5a is a stress diagram of the force analysis of the hook 1;

fig. 5b is a displacement diagram of the hook 1 under force analysis.

Wherein, 1 is a hook, 2 is a slide bar, 3 is a pin shaft, 4 is a cotter pin, 5 is an electromagnet push-pull rod, 6 is an electromagnet main body, 7 is a support, 8 is a flap, and 9 is a support.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1a and 1b, the fully automatic dismounting structure for rotating target flap of the present invention includes a hook 1, a support 7, a flap 8, a bracket 9, a slide bar 2 and a driving device; the lower end of the hook 1 is connected to the support 9 through a support 7 in a shaft mode, the upper end of the hook 1 is connected to the flap 8 in a clamping mode, a through hole is formed in the side face of the hook 1, the driving device is connected with the sliding rod 2, and the sliding rod 2 is located in the through hole.

The support 7 is fixed on the support 9, the pin shaft 3 penetrates through the lower end of the support 9 and the support 7, the end of the pin shaft 3 is limited through the limiting part 4, the limiting part 4 is a cotter pin, a nut or a locking screw, as shown in fig. 2a, fig. 2b and fig. 2c, the support 9 is a part of the rotary target support, the support 7 is welded on the support 9, and the electromagnet main body 6 is fixed on a reserved position of the support 9 through a bolt.

The driving device comprises a power supply, an electromagnet main body 6 and an electromagnet push-pull rod 5, wherein the electromagnet main body 6 is opposite to one end of the electromagnet push-pull rod 5, the other end of the electromagnet push-pull rod 5 is connected with a sliding rod 2, the electromagnet main body 6 is fixed on a support 9, the power supply is connected with the electromagnet main body 6, as shown in figure 2b, a clamping hook 1 is controlled by the sliding rod 2 pushed by the electromagnet push-pull rod 5, the valve 8 is loosened to finish the disassembly of the waste valve 8, preferably, the valve 8 is loosened when a rotary target rotates to the lower part of the valve 8 to be disassembled in the vertical direction, the valve 8 falls into waste target storage equipment by utilizing gravity, as shown in figure 2c, the clamping hook 1 is controlled by the sliding rod 2 pulled by the electromagnet push-pull rod 5, and the valve 8 is fastened to.

In actual operation, the electromagnet is required to be power-off and non-magnetic by remotely controlling the on-off of the power supply, so that the reliability and the agility of the invention are ensured to the maximum extent.

The clamping hook 1 is of a hook-shaped structure, the bending angle of the upper end of the clamping hook 1 is smaller than or equal to 90 degrees, a pair of sliding grooves are formed in the inner wall of the through hole, and the end portions of the sliding rods 2 are inserted into the sliding grooves. The sliding rod 2 rolls or slides in the sliding groove, and small bearings can be arranged at two ends of the sliding rod 2, so that the sliding rod can move more smoothly.

Be provided with the locating hole on the lamella 8, be provided with on the support 9 with locating hole matched with locating pin, cooperation pothook 1 makes lamella 8 fixed completely, can use simple and easy arm to make lamella 8 fix a position on the locating pin to avoid the manual intervention in the lamella 8 installation.

In specific application, the rotary target is divided into 16 flaps 8, the power of the electromagnet is basically used for overcoming the friction force between the flaps 8 and the clamping hook 1, and because the weight of each flap 8 is smaller, the size of the electromagnet is small, and the size and the weight of the whole rotary target system cannot be obviously increased.

In this embodiment, the pulling force generated by the centrifugal force generated by the high-speed rotation of the flap 8 is the maximum test for the strength of the hook 1. The stress simulation is carried out on a rotating target system with the rotating speed of 1000RPM and the rotating radius of 0.5 meter, the hook 1 is made of hot forging die steel, the stress analysis result of the hook 1 is shown in figure 5a, and the displacement analysis result is shown in figure 5 b. In the case of higher rotational speeds or larger rotational radii, the dimensions and thickness of the hooks 1 should be increased accordingly, the hooks 1 being made of a material with a higher yield strength.

In this embodiment, the structure of the hook 1 needs to avoid stress concentration, and a transition fillet is processed at a position where stress concentration may occur.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only a part of the embodiments, but not all embodiments, and are not intended to limit the present invention, and any non-inventive modifications, equivalent substitutions, improvements and the like, which are within the spirit and principle of the present invention, should be included in the protection scope of the present invention.