阅读说明：本技术 一种可在高过载环境运行的大容量离心机吊篮 (Large-capacity centrifuge hanging basket capable of running in high overload environment ) 是由 冉光斌 张志强 宋琼 黎启胜 陈磊 赵世鹏 洪建忠 许元恒 栗庆 于 2019-11-27 设计创作，主要内容包括：本发明涉及土工离心机结构领域,具体公开了一种可在高过载环境运行的大容量离心机吊篮,包括吊臂,所述吊臂由多层吊臂组件叠合构成；所述吊臂组件为U形板件,其底部为圆弧部,两侧为侧板,侧板与底部的圆弧部相切；所述吊臂的两侧的上端均设置有用于与离心机转臂连接的销轴孔,所述销轴孔内设置有轴承组件；所述吊臂底部的圆弧部上设置有平台。本发明的优点是将吊臂设计成整体,且采用多层的结构,可较好继承高碳合金钢板的力学特性,满足使用要求,结构简单；同样,采用碳纤维制造吊臂也能达到使用的要求,且其重量更轻。(The invention relates to the field of geotechnical centrifuge structures, and particularly discloses a high-capacity centrifuge hanging basket capable of operating in a high overload environment, which comprises a hanging arm, wherein the hanging arm is formed by overlapping a plurality of layers of hanging arm components; the suspension arm assembly is a U-shaped plate, the bottom of the suspension arm assembly is an arc part, the two sides of the suspension arm assembly are side plates, and the side plates are tangent to the arc part at the bottom; the upper ends of the two sides of the suspension arm are respectively provided with a pin shaft hole used for being connected with the rotating arm of the centrifugal machine, and a bearing assembly is arranged in the pin shaft hole; and a platform is arranged on the arc part at the bottom of the suspension arm. The suspension arm has the advantages that the suspension arm is designed into a whole, and a multi-layer structure is adopted, so that the mechanical property of the high-carbon alloy steel plate can be well inherited, the use requirement is met, and the structure is simple; likewise, the suspension arm made of carbon fiber can meet the use requirement and has lighter weight.)

1. The utility model provides a can be at high volume centrifuge hanging flower basket that overload environment operated which characterized in that: the suspension arm (1) is formed by overlapping a plurality of layers of suspension arm components (2); the suspension arm assembly (2) is a U-shaped plate, the bottom of the suspension arm assembly is an arc part (22), the two sides of the suspension arm assembly are side plates (21), and the side plates (21) are tangent to the arc part (22) at the bottom;

the upper ends of two sides of the suspension arm (1) are respectively provided with a pin shaft hole (3) used for being connected with a rotating arm of a centrifugal machine, and a bearing assembly is arranged in the pin shaft hole (3);

and a platform (4) is arranged on the arc part (22) at the bottom of the suspension arm (1).

2. A high capacity centrifuge basket operable in a high overload environment according to claim 1 wherein: the bearing assembly comprises a joint bearing (6), a bearing shaft sleeve (5) and a compression nut (7), wherein the joint bearing (6) is arranged in the bearing shaft sleeve (5), the bearing shaft sleeve (5) is arranged in the pin shaft hole (3), an external thread is arranged at one end of the bearing shaft sleeve (5), and the compression nut (7) is in threaded connection with the bearing shaft sleeve (5) to enable the bearing shaft sleeve (5) to be fixed in the pin shaft hole (3).

3. A high capacity centrifuge basket operable in a high overload environment according to claim 1 wherein: the bottom of platform (4) is the arc surface, and it laminates completely with arc portion (22) of davit (1) bottom, and the top of platform (4) is the plane, the both ends face of platform (4) aligns with the both ends face of davit (1) bottom arc portion (22).

4. A high capacity centrifuge basket operable in a high overload environment according to claim 3 wherein: the bottom of the platform (4) is provided with a plurality of lightening holes (8), and the lightening holes (8) are uniformly arranged.

5. A high capacity centrifuge basket operable in a high overload environment according to claim 1 wherein: the suspension arm component (2) is a structure integrally processed and formed by carbon fiber composite materials.

6. A high capacity centrifuge basket operable in a high overload environment according to claim 1 wherein: the suspension arm component (2) is a structure integrally formed by a high-strength alloy thin steel plate.

7. A high capacity centrifuge basket operable in a high overload environment according to claim 1 wherein: the platform (4) is made of light high-rigidity materials.

Technical Field

The invention relates to the field of geotechnical centrifuge structures, in particular to a high-capacity centrifuge hanging basket capable of operating in a high-overload environment.

Background

The hanging basket is a key part of the geotechnical centrifuge and is a link between a rotating arm of the centrifuge and the geotechnical model. The centrifugal machine is positioned in a maximum acceleration field of the centrifugal machine, bears huge centrifugal force generated by a model, a model box and self mass during rotation, and the self rigidity and weight directly influence the scale and the operation condition of the centrifugal machine.

At present, the largest geotechnical centrifuge with the established scale in the world is 1200gt (g is gravity acceleration, t is mass unit, ton) geotechnical centrifuge established by the army engineering force of America in 1998, and the largest centrifugal acceleration of 350g is the most important in the world. In order to solve the key problems to be solved urgently in the countries such as the kilometric deep-ground and deep-sea engineering, the geological structure evolution, the underground space utilization and the like, the construction of a large-scale high-rotation-speed geotechnical centrifuge with larger capacity and higher centrifugal acceleration is urgently needed. To build such a centrifuge, the basket design is critical.

Within the country, grandma [ grandma ] geocentrifuge design review [ R ]. nanjing: the soil institute of south Beijing institute of Water conservancy science, 1990, soil 9002 ] proposed a basket design method and basket design requirements; let us et al conducted design studies on general-scale geotechnical centrifuge baskets [ let us, rochow, liu xiaogang, etc.. methods of designing and optimizing geotechnical centrifuge baskets [ mechanical design [ J ], 2009,26 (11): 68-70, designing a giant multifunctional geotechnical centrifuge basket [ bins ], flood building faithful, Liu Xiao Jiang. 33-36, and issued patents for large-scale geotechnical baskets [ satin, chene, rochei, et al. China, 201310284629.9[ P ]; these earth centrifuge baskets are difficult to carry larger loads to operate in more overloaded environments.

Disclosure of Invention

The invention aims to overcome the defect that a centrifuge basket in the prior art is not suitable for a heavy-load environment, and provides a high-capacity centrifuge basket capable of operating in a high-overload environment, which is simple in structure and can meet the use requirement of high strength.

The purpose of the invention is realized by the following technical scheme: a high-capacity centrifuge hanging basket capable of operating in a high overload environment comprises a hanging arm, wherein the hanging arm is formed by overlapping a plurality of layers of hanging arm components; the suspension arm assembly is a U-shaped plate, the bottom of the suspension arm assembly is an arc part, the two sides of the suspension arm assembly are side plates, and the side plates are tangent to the arc part at the bottom;

the upper ends of the two sides of the suspension arm are respectively provided with a pin shaft hole used for being connected with the rotating arm of the centrifugal machine, and a bearing assembly is arranged in the pin shaft hole;

and a platform is arranged on the arc part at the bottom of the suspension arm.

Specifically, the bearing assembly comprises a joint bearing, a bearing shaft sleeve and a compression nut, the joint bearing is arranged in the bearing shaft sleeve, the bearing shaft sleeve is arranged in the pin shaft hole, an external thread is arranged at one end of the bearing shaft sleeve, and the compression nut is in threaded connection with the bearing shaft sleeve, so that the bearing shaft sleeve is fixed in the pin shaft hole.

Specifically, the bottom of the platform is an arc surface which is attached to the arc part at the bottom of the suspension arm, the top of the platform is a plane, and two end faces of the platform are aligned to two end faces of the arc part at the bottom of the suspension arm.

Specifically, the bottom of the platform is provided with a plurality of lightening holes which are uniformly arranged.

Specifically, the suspension arm assembly is a structure integrally processed and formed by carbon fiber composite materials.

Specifically, the suspension arm assembly is a structure integrally formed by processing a high-strength alloy thin steel plate.

Specifically, the platform is made of a light high-rigidity material.

The invention has the following advantages:

1. two davits with traditional hanging flower basket structure unite two into one, design into a whole, no matter the davit adopts the rigid laminated structure of multilayer high strength alloy, still adopts carbon-fibre composite overall structure, and at centrifuge operation in-process, the davit mainly bears the pulling force, because of the davit arc surface is tangent with the side, the pulling force can smooth transition. In addition, the suspension arm and the rotating arm are connected by a joint bearing, the suspension arm can deform in a self-adaptive manner under the action of centrifugal force, and high stress concentration cannot be generated.

2. If the suspension arm adopts a multi-layer high-strength alloy steel laminated structure, the mechanical property of a high-carbon alloy steel plate can be well inherited, the processing amount is small, and if the suspension arm is integrally processed by adopting a carbon fiber composite material, the suspension arm is light in weight, good in tensile rigidity, and simple in processing technology.

3. The hanging basket platform mainly bears pressure and is good in stress working condition, and even aluminum alloy machining is adopted, the deflection control requirement of the hanging basket platform can be easily met.

Drawings

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

FIG. 2 is a schematic structural diagram of the suspension arm of the present invention;

FIG. 3 is a schematic structural view of the boom assembly of the present invention;

FIG. 4 is a schematic view of an assembled structure of the bearing assembly of the present invention;

fig. 5 is a structural schematic diagram of the bearing shaft sleeve of the invention;

FIG. 6 is a schematic structural view of the compression nut of the present invention;

FIG. 7 is a schematic structural diagram A of the platform of the present invention;

FIG. 8 is a schematic structural diagram B of the platform of the present invention;

in the figure: the suspension arm comprises a 1-suspension arm body, a 2-suspension arm assembly body, 21-side plates, 22-arc portions, 3-pin shaft holes, 4-platforms, 5-bearing shaft sleeves, 6-joint bearings, 7-compression nuts and 8-lightening holes.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.