阅读说明：本技术 机载超重离心模拟装置的多功能实验舱 (Multifunctional experiment cabin of airborne overweight centrifugal simulation device ) 是由 韦华 谢亚丹 王江伟 林伟岸 张泽 陈云敏 于 2019-09-10 设计创作，主要内容包括：本发明公开了一种机载超重离心模拟装置的多功能实验舱。舱体内部设有腔体,腔体上端开口,舱体的两侧侧壁向外连接有舱体吊耳,两侧的舱体吊耳铰接连接到超重力离心机的吊篮转臂上,上密封穹顶通过螺栓安装连接到舱体的腔体开口端面并密封连接；上密封穹顶装有舱体接口件,舱体接口件包括通讯上密封舱盖和通讯舱体,舱体内底面固定安装有布线支架和供气支架,舱体上开设有接线孔和第一安装孔,接线孔处安装接线电极,第二安装孔中安装冷却气体阀装置,冷却气体经管路连接到冷却气体阀装置,冷却气体阀装置经供气支架上的管路和舱体内的试验仪器进出气口连通。本发明解决超重力环境下放置实验装备的难题,实验舱具有结构简单,操作方案且安全系数较高的优点。(The invention discloses a multifunctional experiment chamber of an airborne overweight centrifugal simulation device. The chamber body is internally provided with a chamber body, the upper end of the chamber body is opened, the side walls at two sides of the chamber body are outwards connected with chamber body lifting lugs, the chamber body lifting lugs at two sides are hinged and connected to a hanging basket rotating arm of a supergravity centrifugal machine, and an upper sealing dome is installed and connected to the opening end face of the chamber body through bolts and is in sealing connection; the upper sealing dome is provided with a cabin body interface part, the cabin body interface part comprises a communication upper sealing cabin cover and a communication cabin body, the inner bottom surface of the cabin body is fixedly provided with a wiring support and a gas supply support, the cabin body is provided with a wiring hole and a first mounting hole, the wiring hole is provided with a wiring electrode, a cooling gas valve device is arranged in a second mounting hole, cooling gas is connected to the cooling gas valve device through a pipeline, and the cooling gas valve device is communicated with a gas inlet and a gas outlet of a test instrument in the cabin body through a pipeline on the gas supply support. The invention solves the problem of placing experimental equipment in a supergravity environment, and the experimental cabin has the advantages of simple structure, operation scheme and higher safety factor.)

1. The utility model provides a multi-functional experiment cabin of machine carries overweight centrifugal analogue means which characterized in that: comprises a cabin body interface piece (1), an upper sealing dome (2), a cabin body lifting lug (3) and a cabin body (7); a cavity is arranged in the cabin body (7), the upper end of the cavity is opened, the side walls of two sides of the cabin body (7) are connected with cabin body lifting lugs (3) outwards, the cabin body lifting lugs (3) on two sides are hinged to a hanging basket rotating arm of the supergravity centrifuge, and the upper sealing dome (2) is installed and connected to the end surface of the opening of the cavity of the cabin body (7) through bolts and is in sealing connection; a cabin body interface piece (1) is installed in the center of the upper sealing dome (2), the cabin body interface piece (1) comprises a communication upper sealing cabin cover (12-4) and a communication cabin body (12-5), the communication upper sealing cabin cover (12-4) is installed at an upper end opening of the communication cabin body (12-5), outer flanges are arranged on the communication upper sealing cabin cover (12-4) and the communication cabin body (12-5), first screw holes (12-7) are formed in the step surfaces of the outer flanges, and bolts penetrate through the first screw holes (12-7) to be connected to the upper sealing dome (2); the cabin body interface piece (1) is also provided with an upper glass press-fitting flange (12-1), an upper flange fastening screw (12-2), quartz glass (12-3) and a vacuum socket (12-6), the quartz glass (12-3) is fixedly arranged at an opening at the center of the top of the communication upper sealing cabin cover (12-4) by the upper glass press-fitting flange (12-1), the upper glass press-fitting flange (12-1) is fixed at the top of the upper sealing cabin cover (12-4) by the upper flange fastening screw (12-2), the communication upper sealing cabin cover (12-4), the bottom of the communication cabin body (12-5) is provided with an opening, and the vacuum socket (12-6) is arranged at the opening; a wiring support (6) and an air supply support (8) are fixedly installed on the inner bottom surface of a cavity of the cabin body (7), a wiring hole (7-1) and a first installation hole (7-2) are formed in one side wall of the cabin body (7), a wiring hole and a second installation hole (7-3) are symmetrically formed in the other side wall of the cabin body (7), a wiring electrode (5) is installed at the wiring hole (7-1), the wiring electrode (5) is connected with the wiring support (6) inside the cabin body (7) through the wiring hole (7-1), and a weak signal control wire is connected with the wiring support (6) through the first installation hole (7-2); a cooling gas valve device (9) is arranged in the second mounting hole (7-3), cooling gas is connected to the cooling gas valve device (9) through a pipeline, and the cooling gas valve device (9) is communicated with an air inlet and an air outlet of a test instrument in the cabin body (7) through a pipeline on the gas supply bracket (8);

the wiring electrode (5) comprises a socket head cap screw (51), a copper electrode (52), an electrode insulating sleeve (53) and an electrode fixing insulating sleeve (54); the copper electrode (52) is of a structure with two large ends and two small ends, the center of the end face of the large end of the copper electrode (52) is provided with a fixing screw hole (52-1), and the end face of the large end of the copper electrode (52) around the fixing screw hole (52-1) is provided with a connecting screw hole (52-2); an electrode insulating sleeve (53) is sleeved on the small end of the copper electrode (52) and a step between the small end and the large end, an inner hexagonal screw (51) penetrates through a connecting screw hole (52-2) to be connected to the electrode insulating sleeve (53), so that the copper electrode (52) is fixedly arranged in the electrode insulating sleeve (53) through the inner hexagonal screw (51), and an electrode fixing insulating sleeve (54) is arranged between the inner hexagonal screw (51) and the copper electrode (52); the small end of the copper electrode (52) penetrates through the electrode insulating sleeve (53) and then is connected to an external strong power supply, and an annular sharp bulge is arranged on a step between the small end and the large end of the copper electrode (52);

the wiring support (6) comprises a wiring frame upper cross beam (61), a wiring frame lower cross beam (62), a wiring frame vertical beam (63) and an insulating ceramic fixing piece (66); the upper cross beam (61) of the wiring rack and the lower cross beams (62) of the wiring rack are sequentially arranged in parallel from top to bottom, the upper cross beam (61) of the wiring rack is positioned on the top, two sides of the upper cross beam (61) of the wiring rack and two sides of the lower cross beam (62) of the wiring rack are respectively and fixedly connected between the vertical beams (63) of the wiring rack, so that the upper cross beam (61) of the wiring rack and the lower cross beam (62) of the wiring rack are supported and installed by the vertical beams (63) of the wiring rack on the two sides, the bottom of the vertical beam (63) of the wiring rack is provided with a lug structure, and the lug structure is fixedly connected to the inner bottom; weak signal wires of a temperature sensor and a strain gauge tested by a supergravity environment are arranged on an upper cross beam (61) of the wiring frame; wiring frame entablature (61), wiring frame bottom end rail (62) respectively with wiring frame found between roof beam (63) all through cylindrical screw (64) rigid coupling, wiring frame found roof beam (63) and has seted up a plurality of mounting holes along founding the vertical direction of roof beam, cylindrical screw (64) adjustable ground connection install in different mounting holes for wiring frame entablature (61), wiring frame bottom end rail (62) mounting height position adjustment.

2. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device of claim 1, wherein: the cooling gas valve device (9) is arranged in the supergravity experiment chamber and comprises an inner hexagon screw (91), a vent valve seat (92), a sealing sleeve (93) and a sealing element (94); the ventilation valve seat (92) is of a structure with a large end and a small end, the center of the large end face of the ventilation valve seat (92) is provided with a gas pipe fixing screw hole (92-2), the gas pipe fixing screw hole (92-2) is hermetically connected with a gas supply pipe or a gas exhaust pipe outside the supergravity experiment chamber, and the large end face of the ventilation valve seat (92) around the gas pipe fixing screw hole (92-2) is provided with an installation screw hole (92-1); the sealing sleeve (93) is sleeved on the small end of the ventilation valve seat (92) and a step between the small end and the large end, the sealing sleeve (93) is provided with a connecting screw hole (93-1) corresponding to the mounting screw hole (92-1), an inner hexagonal screw (91) penetrates through the mounting screw hole (92-1) and the connecting screw hole (93-1) and then is connected to a threaded mounting hole in the side wall of the supergravity experiment chamber, so that the ventilation valve seat (92) and the sealing sleeve (93) are mounted on the supergravity experiment chamber, and a sealing element (94) is arranged between the inner hexagonal screw (91) and the mounting screw hole (92-1) of the ventilation valve seat (92); the small end of the ventilation valve seat (92) penetrates through the sealing sleeve (93) and extends into the supergravity experiment chamber; the middle of the end face of the small end of the ventilation valve seat (92) in the supergravity experiment cabin is provided with a gas pipe connecting screw hole (92-3), the gas pipe connecting screw hole (92-3) is communicated with the gas pipe fixing screw hole (92-2) through a channel in the ventilation valve seat (92), and the gas pipe connecting screw hole (92-3) is in sealing connection with a gas pipe on a gas supply bracket in the supergravity experiment cabin.

3. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device according to claim 2, characterized in that: the multifunctional experiment chamber is used for a hypergravity directional solidification test, when the multifunctional experiment chamber is used as a hypergravity experiment chamber of the hypergravity directional solidification test, two second mounting holes (7-3) are arranged, each second mounting hole (7-3) is provided with a cooling gas valve device, one cooling gas valve device is used as a gas supply device, the other cooling gas valve device is used as an exhaust device, cooling gas is introduced into a gas pipe fixing screw hole (92-2) of the gas supply device from a gas source outside the hypergravity experiment chamber through a gas supply slip ring/gas supply pipe, and then enters a gas pipe inside the hypergravity experiment chamber through a gas pipe connecting screw hole (92-3) of the gas supply device to cool or cool the gas supply device; the cooling gas exhausted from the inside of the supergravity experiment chamber is introduced into a gas pipe connecting screw hole (92-3) of the exhaust device through a gas pipe, and then is communicated to an exhaust slip ring/exhaust pipe outside the supergravity experiment chamber through a gas pipe fixing screw hole (92-2) of the exhaust device for exhaust.

4. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device according to claim 2, characterized in that: the vent valve seat (92) is consistent with the copper electrode (52), the large end is round, and the small end is square.

5. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device according to claim 2, characterized in that: the breather valve seat (92) is consistent with the copper electrode (52), and an annular sharp bulge is arranged on a step between the small end and the large end and used for positioning the breather valve seat (92) and limiting the radial/axial movement of the breather valve seat (92) under the action of a centrifugal machine.

6. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device of claim 1, wherein: and a second screw hole (3-1) is formed in the outer edge of the upper sealing dome (2), and a bolt passes through the second screw hole (3-1) and is connected to the cabin body (7), so that the upper sealing dome (2) is connected with the cabin body (7).

7. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device of claim 1, wherein: the face of the lug part of the cabin body lifting lug (3) extending out in the radial direction is provided with a plurality of spaced fixing holes (4-1), and bolts penetrate through the fixing holes (4-1) and are connected to the rotating arm of the supergravity centrifugal machine, so that the cabin body lifting lug (3) is connected with the rotating arm of the supergravity centrifugal machine through the fixing holes (4-1) and the bolts.

8. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device of claim 1, wherein: the outer side wall of the cabin body (7) is provided with a vacuum interface (4), and the vacuum interface (4) is directly connected with a vacuum pipeline outside the cabin body (7).

9. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device of claim 1, wherein: the large end of the copper electrode (52) of the wiring electrode (5) is round, and the small end of the copper electrode is square; the terminal surface of the small end of the copper electrode (52) is provided with a terminal (52-3), and the terminal (52-3) is connected with the terminal of a strong power supply of the supergravity device.

10. The multifunctional experiment chamber of the airborne overweight centrifugal simulation device of claim 1, wherein: the upper cross beam (61) and the lower cross beam (62) of the wiring rack of the wiring support (6) are both of inverted U-shaped structures, fixing screw holes for mounting cylindrical screws (64) are formed in two sides of each of the inverted U-shaped structures, and the inverted U-shaped structures are connected to the vertical beams (63) of the wiring rack through the cylindrical screws (64); a fixing groove for arranging weak signal wires is formed in the upper cross beam (61) of the wiring frame of the wiring support (6), and a fixing groove for arranging strong electric cables is formed in the lower cross beam (62) of the wiring frame.

Technical Field

The invention relates to the technical field of hypergravity, in particular to a multifunctional experiment chamber of an airborne overweight centrifugal simulation device.

Background

The method has the advantages that the high gravity is utilized to accelerate the interphase relative motion effect of the multi-phase medium and simulate the scaling effect, the time-shrinking effect and the energy-strengthening effect in the normal gravity process, airborne experimental devices such as a vibration table, an autoclave, a casting furnace, a high-pressure high-temperature cavity and the like are carried on the high-gravity centrifuge, the large-space long-time substance evolution and the catastrophe overall process of substances are reproduced, new phenomena and new rules are disclosed, the common important scientific problem of the large-space-time evolution and the catastrophe mechanism of the multi-phase medium is solved, and the method has important scientific significance.

In order to complete scientific experiments by using the hypergravity centrifugal simulation experiment device, a plurality of specific experiment devices or instruments, such as a vibration table, an autoclave and a casting furnace, need to be installed on the hypergravity centrifugal simulation experiment device. However, since the experimental device for simulating the ultragravity centrifugation is in a high-speed rotation state when operating, in order to ensure safe operation of a specific experimental device or instrument on a centrifuge, an experimental chamber capable of accommodating the experimental device or instrument, and having functions of heating, air cooling, and the like, is urgently needed.

Disclosure of Invention

The invention aims at solving the problem of carrying a test device or instrument in a high-speed rotation state, thereby providing the test chamber which has simple assembly, convenient use, high safety factor, 1 cubic meter of volume and 1 ton of load, is suitable for being used in a 1g-2500g hypergravity environment, has the maximum use temperature of 200 ℃, can provide a 5-200A strong current interface, and has a weak signal control line comprising interfaces such as temperature and strain gauges and a vacuum interface.

The technical scheme adopted by the invention is as follows:

the invention comprises a cabin body interface piece, an upper sealing dome, a cabin body lifting lug and a cabin body; the chamber body is internally provided with a chamber body, the upper end of the chamber body is opened, the side walls at two sides of the chamber body are outwards connected with chamber body lifting lugs, the chamber body lifting lugs at two sides are hinged and connected to a hanging basket rotating arm of a supergravity centrifugal machine, and an upper sealing dome is installed and connected to the opening end face of the chamber body through bolts and is in sealing connection; a cabin body interface component is arranged in the center of the upper sealing dome, the cabin body interface component comprises a communication upper sealing cabin cover and a communication cabin body, the communication upper sealing cabin cover is arranged at an upper end opening of the communication cabin body, outer flanges are arranged on the communication upper sealing cabin cover and the communication cabin body, a first screw hole is formed in the step surface of each outer flange, and a bolt penetrates through the first screw hole to be connected to the upper sealing dome; the cabin body interface component is also provided with an upper glass press-fitting flange, an upper flange fastening screw, quartz glass and a vacuum socket, the quartz glass is fixedly arranged at an opening at the center of the top of the communication upper sealed cabin cover by the upper glass press-fitting flange, the upper glass press-fitting flange is fixed at the top of the upper sealed cabin cover by the upper flange fastening screw, the communication upper sealed cabin cover is provided with a hole at the bottom of the communication cabin body, and the vacuum socket is arranged at the hole; a wiring support and an air supply support are fixedly mounted on the inner bottom surface of a cavity of the cabin body, a wiring hole and a first mounting hole are formed in one side wall of the cabin body, a wiring hole and a second mounting hole are symmetrically formed in the other side wall of the cabin body, a wiring electrode is mounted at the wiring hole and connected with the wiring support in the cabin body through the wiring hole, and a weak signal control wire is connected with the wiring support through the first mounting hole; and a cooling gas valve device is arranged in the second mounting hole, cooling gas is connected to the cooling gas valve device through a pipeline, and the cooling gas valve device is communicated with the gas inlet and the gas outlet of the test instrument in the cabin body through a pipeline on the gas supply bracket.

The wiring electrode comprises a socket head cap screw, a copper electrode, an electrode insulating sleeve and an electrode fixing insulating sleeve; the copper electrode is of a structure with a large end and a small end, a fixing screw hole is formed in the center of the large end face of the copper electrode, and a connecting screw hole is formed in the large end face of the copper electrode around the fixing screw hole; the electrode insulating sleeve is sleeved on the small end of the copper electrode and the step between the small end and the large end, the inner hexagon screw penetrates through the connecting screw hole to be connected to the electrode insulating sleeve, so that the copper electrode is fixedly arranged in the electrode insulating sleeve through the inner hexagon screw, and the electrode fixing insulating sleeve is arranged between the inner hexagon screw and the copper electrode; the small end of the copper electrode penetrates out of the electrode insulating sleeve and then is connected to an external strong power supply, and an annular sharp bulge is arranged on a step between the small end and the large end of the copper electrode.

The wiring support comprises a wiring rack upper cross beam, a wiring rack lower cross beam, a wiring rack vertical beam and an insulating ceramic fixing piece; the upper beam of the wiring rack and the lower beams of the wiring rack are sequentially arranged in parallel from top to bottom, the upper beam of the wiring rack is positioned at the top, two sides of the upper beam of the wiring rack and two sides of the lower beam of the wiring rack are respectively and fixedly connected between the vertical beams of the wiring rack, so that the upper beam of the wiring rack and the lower beam of the wiring rack are supported and installed by the vertical beams of the wiring rack at the two sides, the bottom of the vertical beam of the wiring rack is provided with a lug structure, and the lug structure is fixedly connected to the inner bottom surface of the cabin body through; weak signal wires of a temperature sensor and a strain gauge tested by a supergravity environment are arranged on the upper beam of the wiring frame; the upper cross beam and the lower cross beam of the wiring frame are fixedly connected with the vertical beam of the wiring frame through cylindrical screws respectively, a plurality of mounting holes are formed in the vertical beam of the wiring frame along the vertical direction of the vertical beam, and the cylindrical screws are adjustably connected and mounted in different mounting holes, so that the mounting height and the position of the upper cross beam and the lower cross beam of the wiring frame are adjusted.

The cooling gas valve device is arranged in the supergravity experiment cabin and comprises an inner hexagonal screw, a ventilation valve seat, a sealing sleeve and a sealing piece; the ventilation valve seat is of a structure with a large end and a small end, the center of the large end face of the ventilation valve seat is provided with a gas pipe fixing screw hole, the gas pipe fixing screw hole is hermetically connected with a gas supply pipe or a gas exhaust pipe outside the supergravity experiment chamber, and the large end face of the ventilation valve seat around the gas pipe fixing screw hole is provided with an installation screw hole; the sealing sleeve is sleeved on the small end of the ventilation valve seat and the step between the small end and the large end, the sealing sleeve is provided with a connecting screw hole corresponding to the mounting screw hole, an inner hexagonal screw passes through the mounting screw hole and the connecting screw hole and then is connected to a threaded mounting hole in the side wall of the supergravity experiment chamber, so that the ventilation valve seat and the sealing sleeve are mounted on the supergravity experiment chamber, and a sealing element is arranged between the inner hexagonal screw and the mounting screw hole of the ventilation valve seat; the small end of the ventilation valve seat penetrates through the sealing sleeve and extends into the supergravity experiment chamber; inside the hypergravity experiment cabin set up trachea connection screw in the middle of the ventilation disk seat tip terminal surface, through ventilation disk seat internal passage intercommunication between trachea connection screw and the fixed screw of trachea, trachea sealing connection on the inside air feed support in trachea connection screw and hypergravity experiment cabin.

The multifunctional experiment chamber is used for a hypergravity directional solidification test, when the multifunctional experiment chamber is used as a hypergravity experiment chamber of the hypergravity directional solidification test, two second mounting holes are arranged, each second mounting hole is provided with a cooling gas valve device, one cooling gas valve device is used as a gas supply device, the other cooling gas valve device is used as an exhaust device, cooling gas is introduced into a gas pipe fixing screw hole of the gas supply device from a gas source outside the hypergravity experiment chamber through a gas supply slip ring/gas supply pipe, and then enters a gas pipe inside the hypergravity experiment chamber through a gas pipe connecting screw hole of the gas supply device to supply gas for a cooling or cooling device; and cooling gas exhausted from the inside of the supergravity experiment chamber is introduced into the gas pipe connecting screw hole of the exhaust device through the gas pipe, and then is communicated to the exhaust slip ring/exhaust pipe outside the supergravity experiment chamber through the gas pipe fixing screw hole of the exhaust device to be exhausted.

The ventilating valve seat is consistent with the copper electrode, the large end is round, and the small end is square.

The breather valve seat is consistent with the copper electrode, the step between the small end and the large end is provided with an annular sharp bulge, and the sharp bulge is used for positioning the breather valve seat and limiting the radial/axial movement of the breather valve seat under the action of the centrifuge.

And a second screw hole is formed in the outer edge of the upper sealing dome, and a bolt passes through the second screw hole and is connected to the cabin body, so that the upper sealing dome is connected with the cabin body.

The surface of the lug part of the cabin body lifting lug extending out in the radial direction is provided with a plurality of spaced fixing holes, and the bolt penetrates through the fixing holes and is connected to the rotating arm of the supergravity centrifugal machine, so that the cabin body lifting lug is connected with the rotating arm of the supergravity centrifugal machine through the fixing holes and the bolt.

The outer side wall of the cabin body is provided with a vacuum interface, and the vacuum interface is directly connected with a vacuum pipeline outside the cabin body.

The large end of the copper electrode of the wiring electrode is round, and the small end of the copper electrode of the wiring electrode is square; and a binding post is arranged on the end face of the small end of the copper electrode and is connected with the binding post of a strong power supply of the supergravity device.

The upper cross beam and the lower cross beam of the wiring rack of the wiring support are both of inverted U-shaped structures, fixing screw holes for mounting cylindrical screws are formed in two sides of each inverted U-shaped structure, and the inverted U-shaped structures are connected to the vertical beams of the wiring rack through the cylindrical screws; a fixing groove used for arranging weak signal wires is formed in the upper cross beam of the wiring frame of the wiring support, and a fixing groove used for arranging strong electric cables is formed in the lower cross beam of the wiring frame.

The invention has the beneficial effects that:

the invention provides an installation platform for special equipment which runs under the hypergravity environment such as a vibration table, a high-pressure kettle, a casting furnace and the like, and simultaneously provides interfaces such as strong current, weak current, vacuum and the like;

the invention provides a fixed type experiment cabin for a hypergravity experiment, and solves the problem of placing experiment equipment in a hypergravity environment.

The experiment chamber has the advantages of simple structure, operation scheme and higher safety factor.

Drawings

FIG. 1 is a front view of the multifunctional experimental chamber of the onboard overweight centrifugal simulation device.

Fig. 2 is a front view of the cabin interface 1; 2-1, pressing a flange on the glass; 2-2, fastening screws on the upper flange; 2-3 quartz glass; 2-4 communicating an upper sealing cabin cover; 2-5 communication cabin; 2-6 vacuum sockets; 2-7 connecting screw holes.

Fig. 3 is a front view of the upper sealed dome 2; 3-1 screw hole.

Fig. 4 is a schematic view of the cabin lifting lugs 3, fig. 4(a) is a front view of the cabin lifting lugs 3, fig. 4(b) is a side view of the cabin lifting lugs 3, and fig. 4(c) is a top view of the cabin lifting lugs 3; 4-1 fixing hole; 4-2 screw holes.

Fig. 5 is a front sectional view of the terminal electrode 5;

fig. 6 is a sectional view of the copper electrode of the terminal electrode 5 and a partially enlarged view thereof; the electrode comprises a socket head cap screw 51, a copper electrode 52, an electrode insulating sleeve 53, an electrode fixing insulating sleeve 54, a fixing screw hole 52-1, a connecting screw hole 52-2, a binding post 52-3 and an installation screw hole 54-1.

FIG. 7 is a front view of the wiring rack;

FIG. 8 is a side view of the wiring bracket; wiring frame upper beam 61, wiring frame lower beam 62, wiring frame vertical beam 63, cylindrical screw 64, cross recess pan head screw 65, insulating ceramic mounting 66.

Fig. 9 is a schematic view of the cabin 7; 7-1 wiring hole; 7-2 first mounting holes.

FIG. 10 is a schematic view of the connection and installation of the experimental chamber of the present invention in the implementation of the experiment of directional solidification under hypergravity.

FIG. 11 is a front view of the cooling gas valve device;

fig. 12 is a sectional view of the vent valve seat 2 of the cooling gas valve device;

FIG. 13 is an enlarged partial schematic view of A in FIG. 12;

figure 14 is a schematic view of a gland;

FIG. 15 is a schematic view of a seal;

in the figure: the device comprises a cabin body interface component 1, an upper sealing dome 2, a cabin body lifting lug 3, a vacuum interface 4, a wiring electrode 5, a wiring support 6, a cabin body 7, an air supply support 8, a cooling air valve device 9, an upper glass press-fitting flange 12-1, an upper flange fastening screw 12-2, quartz glass 12-3, a communication upper sealing cabin cover 12-4, a communication cabin body 12-5, a vacuum socket 12-6, a first screw hole 12-7, a second screw hole 3-1, a fixing hole 4-1, a third screw hole 4-2, a wiring hole 7-1 and a first mounting hole 7-2; the wiring rack comprises a wiring rack upper beam 61, a wiring rack lower beam 62, a wiring rack vertical beam 63, a cylindrical screw 64, a cross-slot pan head screw 65 and an insulating ceramic fixing piece 66; the electrode comprises an inner hexagonal screw 51, a copper electrode 52, an electrode insulating sleeve 53, an electrode fixing insulating sleeve 54, a fixing screw hole 52-1, a connecting screw hole 52-2, a binding post 52-3, an installation screw hole 54-1, an inner hexagonal screw 91, a vent valve seat 92, a sealing sleeve 93, a sealing piece 94, a fixing screw hole 92-1, a gas pipe fixing screw hole 92-2, a gas pipe connecting screw hole 92-3 and a connecting screw hole 93-1.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in fig. 1, the specific implementation includes a cabin interface member 1, an upper sealing dome 2, a cabin lifting lug 3 and a cabin 7; a cavity is arranged in the cabin body 7, the upper end of the cavity is opened, the side walls on two sides of the cabin body 7 are outwards connected with cabin body lifting lugs 3, the cabin body lifting lugs 3 on two sides are hinged and connected to a hanging basket rotating arm of the supergravity centrifugal machine, and the upper sealing dome 2 is installed and connected to the end surface of the opening of the cavity of the cabin body 7 through bolts and is in sealing connection; the center of the upper sealed dome 2 is mounted with a cabin interface piece 1.

As shown in FIG. 2, the cabin body interface piece 1 comprises a communication upper sealing cabin cover 12-4 and a communication cabin body 12-5, wherein the communication upper sealing cabin cover 12-4 is installed at an upper end opening of the communication cabin body 12-5, the communication upper sealing cabin cover 12-4 and the communication cabin body 12-5 are both provided with outer flanges, the step surfaces of the outer flanges are provided with first screw holes 12-7, and bolts penetrate through the first screw holes 12-7 to be connected to the upper sealing dome 2. The cabin body interface component 1 is also provided with an upper glass press-fitting flange 12-1, an upper flange fastening screw 12-2, quartz glass 12-3 and a vacuum socket 12-6, the quartz glass 12-3 is fixedly arranged at an opening in the center of the top of the communication upper sealing cabin cover 12-4 by the upper glass press-fitting flange 12-1, the upper glass press-fitting flange 12-1 is fixed at the top of the upper sealing cabin cover 12-4 by the upper flange fastening screw 12-2, the communication upper sealing cabin cover 12-4 is provided with a hole at the bottom of the communication cabin body 12-5, and the vacuum socket 12-6 is arranged at the hole.

As shown in fig. 9, a wiring bracket 6 and an air supply bracket 8 are fixedly installed on the inner bottom surface of the chamber body 7, a wiring hole 7-1 and a first installation hole 7-2 are formed in one side wall of the chamber body 7, a wiring hole and a second installation hole 7-3 are symmetrically formed in the other side wall of the chamber body 7, a wiring electrode 5 is installed at the wiring hole 7-1, the wiring electrode 5 is connected with the wiring bracket 6 inside the chamber body 7 through the wiring hole 7-1, and a weak signal control wire is connected with the wiring bracket 6 through the first installation hole 7-2; and a cooling gas valve device 9 is arranged in the second mounting hole 7-3, cooling gas is connected to the cooling gas valve device 9 through a pipeline, and the cooling gas valve device 9 is communicated with the gas inlet and the gas outlet of a test instrument in the cabin body 7 through a pipeline on the gas supply bracket 8.

As shown in fig. 5 and 6, the terminal electrode 5 includes a socket head cap screw 51, a copper electrode 52, an electrode insulating sheath 53, and an electrode fixing insulating sheath 54; the copper electrode 52 is a structure with a big end and a small end, the center of the big end face of the copper electrode 52 is provided with a fixing screw hole 52-1, and the big end face of the copper electrode 52 around the fixing screw hole 52-1 is provided with a connecting screw hole 52-2; the electrode insulating sleeve 53 is sleeved on the small end of the copper electrode 52 and a step between the small end and the large end, the inner hexagonal screw 51 is connected to the electrode insulating sleeve 53 through the connecting screw hole 52-2, so that the copper electrode 52 is fixedly arranged in the electrode insulating sleeve 53 through the inner hexagonal screw 51, and the electrode fixing insulating sleeve 54 is arranged between the inner hexagonal screw 51 and the copper electrode 52; the small end of the copper electrode 52 is connected to the external strong power source after penetrating through the electrode insulation sleeve 53, and the copper electrode 52 is provided with a ring-shaped sharp bulge on the step between the small end and the large end.

As shown in fig. 7 and 8, the wiring rack 6 includes a wiring rack upper beam 61, a wiring rack lower beam 62, a wiring rack upright beam 63 and an insulating ceramic fixing member 66; the wiring rack upper beam 61 and the plurality of wiring rack lower beams 62 are sequentially arranged in parallel from top to bottom, the wiring rack upper beam 61 is positioned at the uppermost part, two sides of the wiring rack upper beam 61 and two sides of the wiring rack lower beam 62 are respectively and fixedly connected between the wiring rack vertical beams 63, so that the wiring rack upper beam 61 and the wiring rack lower beam 62 are supported and installed by the wiring rack vertical beams 63 at the two sides, the bottom of the wiring rack vertical beam 63 is provided with a lug structure, and the lug structure is fixedly connected to the inner bottom surface of the cabin body 7 through bolts/screws; weak signal wires of a temperature sensor and a strain gauge tested by a supergravity environment are arranged on the upper beam 61 of the wiring frame; wiring frame entablature 61, wiring frame bottom end rail 62 respectively with wiring frame found the roof beam 63 between all through cylindrical screw 64 rigid coupling, wiring frame found the roof beam 63 and gone up along founding the vertical direction of roof beam and seted up a plurality of mounting holes, cylindrical screw 64 adjustably connects the installation in different mounting holes for wiring frame entablature 61, wiring frame bottom end rail 62 mounting height position adjustment.

The cooling gas valve device 9 is arranged in the supergravity experiment chamber and comprises an inner hexagon screw 91, a vent valve seat 92, a sealing sleeve 93 and a sealing piece 94; the vent valve seat 92 is of a structure with a large end and a small end, the vent valve seat 92 is installed in a threaded installation hole in the side wall of the supergravity experiment chamber, the large end of the vent valve seat 92 is installed outwards, the vent valve seat 92 is mainly used for ventilation, and the highest air pressure is not higher than 5 Mpa; prepared from red copper. An air pipe fixing screw hole 92-2 is formed in the center of the large end face of the air valve seat 92, the air pipe fixing screw hole 92-2 is connected with an air supply pipe or an exhaust pipe outside the supergravity experiment chamber in a sealing mode, and an installation screw hole 92-1 is formed in the large end face of the air valve seat 92 around the air pipe fixing screw hole 92-2; the sealing sleeve 93 is sleeved on the small end of the vent valve seat 92 and a step between the small end and the large end, the sealing sleeve 93 is provided with a connecting screw hole 93-1 corresponding to the mounting screw hole 92-1, the inner hexagon screw 91 passes through the mounting screw hole 92-1 and the connecting screw hole 93-1 and then is connected to a threaded mounting hole of the side wall of the supergravity experiment chamber, so that the vent valve seat 92 and the sealing sleeve 93 are mounted on the supergravity experiment chamber, a sealing element 94 is arranged between the inner hexagon screw 91 and the mounting screw hole 92-1 of the vent valve seat 92, and the sealing element 94 is used for isolating the inner hexagon screw 91 from the vent valve seat 92; the small end of the ventilation valve seat 92 penetrates through the sealing sleeve 93 and extends into the supergravity experiment chamber; the middle of the end face of the small end of the ventilation valve seat 92 in the supergravity experiment cabin is provided with a gas pipe connecting screw hole 92-3, the gas pipe connecting screw hole 92-3 is communicated with the gas pipe fixing screw hole 92-2 through a channel in the ventilation valve seat 92, and the gas pipe connecting screw hole 92-3 is in sealing connection with a gas pipe on a gas supply bracket in the supergravity experiment cabin.

The multifunctional experiment chamber is used for a supergravity directional solidification test, when the multifunctional experiment chamber is used as a supergravity experiment chamber of the supergravity directional solidification test, two second mounting holes 7-3 are arranged, each second mounting hole 7-3 is provided with a cooling gas valve device, one cooling gas valve device is used as a gas supply device, the other cooling gas valve device is used as an exhaust device, cooling gas is introduced into a gas pipe fixing screw hole 92-2 of the gas supply device from a gas source outside the supergravity experiment chamber through a gas supply slip ring/gas supply pipe, and then enters a gas pipe inside the supergravity experiment chamber through a gas pipe connecting screw hole 92-3 of the gas supply device to supply gas for a cooling or cooling device; the cooling gas exhausted from the inside of the supergravity experiment chamber is introduced into the gas pipe connecting screw hole 92-3 of the exhaust device through the gas pipe, and then is communicated to the exhaust slip ring/exhaust pipe outside the supergravity experiment chamber through the gas pipe fixing screw hole 92-2 of the exhaust device for exhaust.

The four mounting screw holes 92-1 are arranged, the four mounting screw holes 92-1 are uniformly distributed at intervals along the circumferential direction, and the sealing sleeve 93 is correspondingly provided with the four mounting screw holes 93-1.

The vent valve seat 92 is identical to the copper electrode 52, the large end is circular, the small end is square, and the small end is square and is matched with a square through hole in the lateral wall of the supergravity experiment chamber, so that the vent valve seat 92 limits rotation.

The breather valve seat 92 is identical to the copper electrode 52, and an annular sharp projection is arranged on the step between the small end and the large end, the sharp projection is closer to the middle position than the mounting screw hole 92-1, and the sharp projection is used for positioning the breather valve seat 92 and limiting the radial/axial movement of the breather valve seat 92 under the action of a centrifugal machine.

The vent valve seat 92 disclosed by the invention is made of red copper alloy, has good shaping under the condition of ensuring the ventilation, and prevents the fatigue failure of the vent valve seat under the interaction of supergravity and cooling.

The sealing sleeve 93 isolates and seals the vent valve seat 92 and the hypergravity experiment chamber, so that gap air leakage when the vent valve seat 92 and the hypergravity experiment chamber are fixed is prevented, and the vacuum degree in the experiment chamber is reduced. The sealing sleeve 93 is made of polytetrafluoroethylene, and has a heat insulation effect to prevent the temperature of the cooling gas from being reduced.

The sealing piece 94 seals the vent valve seat 92 and the socket head cap screws 91 in an isolation manner, and is used for sealing the gap between the socket head cap screws 91 and the vent valve seat 92, preventing air leakage and reducing the vacuum degree in the experiment chamber. The sealing member 94 may also be made of teflon, which has a heat insulating effect to prevent the temperature of the cooling gas from being dissipated through the socket head cap screw 91.

The cooling gas is liquid nitrogen, compressed air, etc., and the pressure is not higher than 5 MPa.

The invention is suitable for the environment with 1g-2500g of supergravity, and the temperature is from room temperature to 150 ℃.

The cooling gas valve device is placed in a supergravity environment, and is particularly used for a supergravity directional solidification test. The hypergravity direction is along the axial direction of the hypergravity experiment chamber, and the vent valve seat is arranged on the side wall of the hypergravity experiment chamber, so that the hypergravity direction is along the radial direction of the vent valve seat 92.

The cooling ventilation structure can meet the requirement that the maximum gas supply pressure is not lower than 5MPa in a supergravity environment, is beneficial to controlling the range of the cooling rate for a heating or cooling device by adjusting the flow or pressure of cooling gas, can meet the cooling requirement of various supergravity airborne devices very flexibly, and has strong adaptability and wide application range.

As shown in fig. 2, the outer edge of the upper sealing dome 2 is provided with a second screw hole 3-1, and a bolt is connected to the cabin 7 through the second screw hole 3-1, so that the upper sealing dome 2 is connected with the cabin 7.

As shown in fig. 4, the surface of the lug part of the nacelle lifting lug 3 extending radially is provided with a plurality of spaced fixing holes 4-1, and bolts pass through the fixing holes 4-1 and are connected to the rotating arm of the supergravity centrifuge, so that the nacelle lifting lug 3 is connected to the rotating arm of the supergravity centrifuge through the fixing holes 4-1 and the bolts.

The end surface of the cabin body lifting lug 3 connected with the cabin body 7 is provided with a third screw hole 4-2, and a bolt passes through the third screw hole 4-2 to be connected with the cabin body 7, so that the cabin body lifting lug 3 is connected with the cabin body 7 through the third screw hole 4-2 and the bolt.

As shown in fig. 1, the outer side wall of the cabin 7 is provided with a vacuum port 4, and the vacuum port 4 is directly connected with a vacuum pipeline outside the cabin 7.

Four connecting screw holes 52-2 are formed in the wiring electrode 5, the four connecting screw holes 52-2 are uniformly distributed at intervals along the circumferential direction, and four mounting screw holes are correspondingly formed in the electrode fixing insulating sleeve 54.

The large end of the copper electrode 52 of the wiring electrode 5 is circular, and the small end is square; the small end face of the copper electrode 52 is provided with a terminal 52-3, and the terminal 52-3 is connected with a terminal of a strong power supply of the supergravity device.

As shown in fig. 7 and 8, the upper cross beam 61 and the lower cross beam 62 of the wiring rack 6 are both of an inverted U-shaped structure, fixing screw holes for mounting cylindrical screws 64 are formed on two sides of the inverted U-shaped structure, and the inverted U-shaped structure is connected to the vertical beam 63 of the wiring rack through the cylindrical screws 64; the wiring rack upper beam 61 of the wiring rack 6 is provided with a fixing groove for arranging weak signal wires, and the wiring rack lower beam 62 is provided with a fixing groove for arranging strong electric cables.

The use and operation process of the multifunctional cabin comprises the following steps:

the first step is as follows: the device to be heated or cooled is arranged in a multifunctional experiment chamber, and the experiment chamber is connected with a rotating arm of a centrifugal main machine through a chamber body lifting lug 3;

the second step is that: a vacuum pipeline is connected with an exhaust slip ring of a centrifugal main shaft through a rotating arm of a centrifugal main machine through a vacuum interface 4 and is connected with a ground vacuum unit through an exhaust slip ring;

the third step: and fixing the cooling gas valve device on the hypergravity experiment cabin shell. A loop, 2 breather valve seats, one connected to the gas supply pipe and one connected to the gas exhaust pipe;

the fourth step: a path of air supply pipe is led out from the ground air source control valve and is connected with an air supply slip ring of a main shaft of the centrifuge;

the fifth step: one end of the air supply pipe is connected with an air supply slip ring of a main shaft of the centrifuge, and then the other end of the air supply pipe is connected with an air supply valve seat on a cooling air valve device through a main machine rotating arm. The maximum air supply pressure is not higher than 5 MPa;

and a sixth step: the air supply pipe is connected with the air supply bracket, so that the air supply pipe is prevented from being broken and moving under the supergravity environment;

the seventh step: one end of the air supply pipe is connected with the air supply pipe on the air supply bracket, and the other end of the air supply pipe is connected with the air supply pipe of the cooling or cooling device;

eighth step: one end of the exhaust pipe is connected with the exhaust pipe of the cooling or refrigerating device, and the other end of the exhaust pipe is connected with the exhaust pipe on the air supply bracket, so that the exhaust pipe is prevented from being broken and moving in a supergravity environment;

the ninth step: one end of an exhaust pipe is connected with an exhaust pipe on the gas supply bracket, and the other end of the exhaust pipe is connected with a vent valve seat on the cooling gas valve device and an exhaust port;

the tenth step: one end of the exhaust pipe is connected with an exhaust port of a ventilation valve seat on the cooling gas valve device and passes through a main shaft of the centrifuge, and the other end of the exhaust pipe is connected with an exhaust slip ring of the main shaft of the centrifuge;

the eleventh step: one end of an exhaust pipe is connected with an exhaust slip ring of a main shaft of the centrifuge, and the other end of the exhaust pipe is communicated with a gas exhaust chamber or the outside;

the twelfth step: and determining the number of the heavy electric bus circuits according to the heating subareas of the high-temperature heating device. The following takes a zone heating as an example to illustrate the implementation process of the heating function:

the thirteenth step: and fixing the electrode device on the hypergravity experiment cabin shell. A circuit using two electrode devices.

The fourteenth step is that: a loop is led out from the ground power supply cabinet and is respectively connected with the electric slip ring on the main machine shaft. Each loop can be direct current or alternating current, and the maximum current is 200A.

The fifteenth step: a loop is led out from the electrical slip ring connection on the main machine shaft, and 2 wires are provided, and each wire is connected with a fixed screw hole 52-1 in a copper electrode 52 of each electrode device. The current of the ground power supply cabinet is supplied to the hypergravity experiment cabin through the copper electrode 2.

Sixteenth, step: 2 power lines are connected with the wiring rack through the binding post 52-3 of the copper electrode 52, and the wires are prevented from being broken or tangled in the hypergravity environment.

Seventeenth step: two independent wires are led out from two power connection positions of the wiring frame, which are close to the high-temperature heating device section, and are respectively connected with the high-temperature heating device.

And eighteenth step: a thermocouple temperature extension lead for controlling the high-temperature heating device is connected into a signal collector, and the signal collector converts the received temperature signal from an analog signal into a digital signal; the digital signal is connected with the signal slip ring through the wiring frame and then is connected with the ground measurement and control center;

the nineteenth step: connecting a tachometer signal wire arranged on a rotating arm of a host machine with a weak signal conductive slip ring;

the twentieth step: in the experiment process, a thermocouple on the heating device is utilized to control the experiment temperature and the heating rate.

The twentieth step: the method is characterized in that a rotating shaft of the centrifugal machine is provided with a tachometer, the rotating speed of the centrifugal machine is controlled by the tachometer, and the average centrifugal stress F borne by the device is calculated by the following formula:

F＝m·a＝m·R(2πN/60)²

wherein m is the mass of the device; a is centrifugal acceleration, and the calculation formula is a ═ R (2 pi N/60)²R is the effective distance from the center of the device to the axis of the rotating shaft of the centrifuge; and N is the rotating speed of the centrifuge.

A twenty-second step: when the process is finished and the detection is correct, firstly starting a ground vacuum unit, starting a heating system when the vacuum degree is less than 5Pa, and adjusting the heating rate through a temperature control thermocouple and an intelligent temperature control system; if cooling is required, the air cooling system is started, and the air supply flow or pressure is controlled by using a pressure gauge on the ground air supply valve.