CN111075885A - Main machine vibration isolation device of super-gravity geotechnical centrifuge vacuum container - Google Patents
Main machine vibration isolation device of super-gravity geotechnical centrifuge vacuum container Download PDFInfo
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- CN111075885A CN111075885A CN201911295520.9A CN201911295520A CN111075885A CN 111075885 A CN111075885 A CN 111075885A CN 201911295520 A CN201911295520 A CN 201911295520A CN 111075885 A CN111075885 A CN 111075885A
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- vibration isolation
- girder
- sealing
- isolation device
- cylindrical barrel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a host machine vibration isolation device of a super-gravity geotechnical centrifuge vacuum container. Comprises a closed vacuum pressure-bearing container; the high-speed rotor system is enclosed in the cavity of the closed vacuum pressure-bearing container, and a cylindrical cooling device is arranged between the inner side of the cylindrical barrel and the high-speed rotor system; the upper bearing system mainly comprises an upper bearing support ring and a plurality of girders, wherein the upper bearing support ring and the girders form a radial support structure, and each girder is in sealing connection with the cylindrical barrel through a girder vibration isolation device and a sealing flanging gasket respectively. The upper bearing girder of the main machine of the centrifuge is separated from the vacuum container of the centrifuge cabin by the vibration isolation device, so that the influence of vibration on the container is avoided; the vibration isolation device adopts a flexible structure, absorbs vibration, and simultaneously can bear load caused by pressure difference between the inside and the outside of the vacuum container, so that the container can be ensured to operate under vacuum; the whole vibration isolation device can be made into a whole by adopting steel wire reinforced flexible engineering plastics, and the manufacturing is simpler.
Description
Technical Field
The invention relates to a vibration isolation device, in particular to a host machine vibration isolation device of a super-gravity geotechnical centrifuge vacuum container.
Background
The hypergravity geotechnical centrifuge is an indispensable device for researching geological evolution process reappearance tests such as rock-soil evolution, geological structure evolution and geological disaster recovery, and vibration and heat dissipation are two prominent problems of the hypergravity centrifuge and the geotechnical centrifuge. Vibration can cause fatigue damage to the structure and heat generation can cause the temperature in the chamber to rise, which results in the instrument not working properly. The heat dissipation is solved by installing a radiator on the cylindrical barrel around the centrifugal cabin. The vibration is caused by various reasons, wherein the unbalance of the two ends of the rotating arm caused by the change of the mass center after the rock and soil body is compressed in the experimental process is the most direct reason and is inevitable in the experiment, and the vibration is caused by the mass unbalance of the two ends. In order to reduce the adverse effect on other equipment caused by the vibration, the invention provides a vibration isolation device which is mainly used for isolating the vacuum cavity of a supergravity centrifuge from the main machine of the centrifuge.
At present, no literature report is found about the vibration isolation device and the technology of the hypergravity geotechnical centrifuge.
Disclosure of Invention
The influence of the vibration of the hypergravity geotechnical centrifuge on the centrifugal cabin is solved; the invention aims to provide a host vibration isolation device of a vacuum container of a supergravity geotechnical centrifuge, which adopts a special vibration isolation device to isolate the vibration of a host from a vacuum cavity, and simultaneously ensures that the pressure in a centrifugal cabin is not lost, thereby meeting the requirement of safe operation.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
the invention relates to a host machine vibration isolation device of a super-gravity geotechnical centrifuge vacuum container. The sealed vacuum pressure-bearing container comprises a cylindrical barrel, a lower sealing flange, an upper sealing flange, a pressing device, a convex sealing head, a lower bearing sealing cover and a sealing gasket; the high-speed rotor system is enclosed in the cavity of the closed vacuum pressure-bearing container, hanging baskets 13 are respectively arranged at two sides of a rotating arm of a centrifugal machine of the high-speed rotor system, a cylindrical cooling device is arranged between the inner side of a cylindrical barrel and the high-speed rotor system, the lower end of a main shaft of the high-speed rotor system extends out of a lower seal head through a lower bearing sealing cover and a lower bearing system and then is sequentially connected with a coupler and a motor, and the lower bearing system, the coupler and the motor are isolated outside the vacuum pressure-bearing cavity; the upper end of a main shaft of the high-speed rotor system is connected with the upper bearing system through an upper seal plate;
the upper bearing system mainly comprises an upper bearing support ring and a plurality of girders, which form a radial support structure, wherein the girders are symmetrically distributed along a central shaft; one end of each girder is connected with the upper bearing support ring, the other end of each girder penetrates through the cylindrical barrel and then is connected with a girder base plate, each girder base plate is connected to the lateral concrete, and the upper bearing system is arranged in the upper bearing support ring; the periphery of one end of each girder is in clearance fit with the cross opening of the cylindrical barrel, and each girder is in sealing connection with the cylindrical barrel through a girder vibration isolation device and a sealing flanging gasket respectively; a plurality of side wall liquid inlet pipes are arranged on the cylindrical barrel, and a vacuum exhaust pipe is arranged on the convex seal head; the cylindrical cooling device is communicated with the upper liquid collecting pipe and the lower liquid collecting pipe, the upper liquid collecting pipe penetrates through the cylindrical barrel to be connected to a low-temperature outlet of the refrigerator, and the lower liquid collecting pipe penetrates through the cylindrical barrel to be connected to a water return inlet of the refrigerator.
The vibration isolation device mainly comprises a vibration isolation cylinder section, vibration isolation cylinder section pressing flanges, inner hexagon screws and anti-loosening gaskets, wherein two ends of the vibration isolation cylinder section are provided with sealing edge-folding gaskets, two ends of the vibration isolation cylinder section are respectively connected with the cylindrical barrel and the girder thrust plate in a sealing mode through the sealing edge-folding gaskets by the respective vibration isolation cylinder section pressing flanges, and are pressed by the inner hexagon screws and the anti-loosening gaskets, and the girder thrust plate is welded on the girder in a sealing mode.
The section of the vibration isolation cylinder section is circular.
The base body of the vibration isolation cylinder section is made of flexible rubber or flexible engineering plastics, and a spiral elastic steel wire is buried in the middle of the flexible engineering plastics as a reinforcing material.
The invention has the beneficial effects that:
1) an upper bearing girder of a centrifuge mainframe is separated from a centrifuge cabin vacuum container by adopting a vibration isolation device, so that the influence of the vibration of the mainframe on the container is avoided;
2) the vibration isolation device adopts a flexible structure, absorbs vibration, and simultaneously can bear load caused by pressure difference between the inside and the outside of the vacuum container, so that the container can be ensured to operate under vacuum;
3) the whole vibration isolation device can be made into a whole by adopting the spiral steel wire reinforced flexible engineering plastic, and the manufacturing is simpler.
Drawings
Fig. 1 is a main body structure view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a sectional view a-a of fig. 2.
In the figure: 1. motor, 2, coupler, 3, lower bearing system, 4, lower bearing sealing cover, 5, tie bar, 6, bottom concrete, 7, lower end socket, 8, lateral concrete, 9, lower liquid collecting pipe, 10, cylindrical barrel, 11, cylindrical cooling device, 12, main shaft, 13, hanging basket, 14, centrifuge rotating arm, 15, lower sealing flange, 16, upper sealing flange, 17, pressing device, 18, upper bearing system, 19, convex end socket, 20, upper bearing sealing cover, 21, girder, 22, upper liquid collecting pipe, 23, vibration isolation device, 24, sealing gasket, 25, vibration isolation barrel joint pressing flange, 26, liquid inlet pipe, 27, high-speed rotor system, 28, upper bearing supporting ring, 29, upper sealing plate, 30, vacuum pumping pipe, 31, girder cushion plate, 32, inner hexagon screw, 33, anti-loose gasket, 34, spiral elastic steel wire, 35, flexible engineering plastic, 36. and the sealing flanging gasket 37, the crossbeam thrust plate 38 and the vibration isolation cylinder section.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, the host vibration isolation device of the vacuum container of the supergravity geotechnical centrifuge of the present invention comprises a cylindrical barrel 10, a lower sealing flange 15, an upper sealing flange 16, a pressing device 17, a convex sealing head 19, a lower sealing head 7, a lower bearing sealing cover 4 and a sealing gasket 24 to form a closed vacuum pressure-bearing container; the high-speed rotor system 27 is enclosed in the cavity of the closed vacuum pressure-bearing container, hanging baskets 13 are respectively arranged at two sides of a rotating arm 14 of the centrifuge of the high-speed rotor system 27, a cylindrical cooling device 11 is arranged between the inner side of the cylindrical barrel 10 and the high-speed rotor system 27, the lower end of a main shaft 12 of the high-speed rotor system 27 passes through a lower bearing sealing cover 4 and a lower bearing system 3, extends out of a lower sealing head 7 and then is sequentially connected with the coupler 2 and the motor 1, and the lower bearing system 3, the coupler 2 and the motor 1 are isolated outside the vacuum pressure-bearing cavity; the upper end of the main shaft 12 of the high-speed rotor system 27 is connected with the upper bearing system 18 through an upper sealing plate 29, and 20 is an upper bearing sealing cover;
in order to increase the rigidity of the high-speed rotor system, an upper bearing system 18 is added, the upper bearing system 18 mainly comprises an upper bearing support ring 28 and a plurality of girders 21 to form a radial support structure, and the girders 21 are symmetrically distributed along the central axis; one end of each girder is connected with the upper bearing support ring 28, the other end of each girder penetrates through the cylindrical barrel 10 and then is connected with a girder base plate 31, each girder base plate 31 is connected to the lateral concrete 8, and the upper bearing system 18 is arranged in the upper bearing support ring 28; the peripheries of one ends of a plurality of girders 21 are in clearance fit with the crossed holes of the cylindrical barrel 10, and each girder is in sealing connection with the cylindrical barrel 10 through a girder vibration isolation device 23 and a sealing flanging gasket 36 respectively; a plurality of side wall liquid inlet connecting pipes 26 are arranged on the cylindrical barrel 10, and a vacuum pumping pipe 30 is arranged on the convex seal head 19; the cylindrical cooling device 11 is in communication with an upper header 22 and a lower header 9, the upper header 22 being connected through the cylindrical barrel 10 to the low temperature outlet of the freezer, the lower header 9 being connected through the cylindrical barrel 10 to the return water inlet of the freezer.
As shown in fig. 2 and 3, the vibration isolation device 23 mainly comprises a vibration isolation cylinder section 38, a vibration isolation cylinder section compression flange 25, an inner hexagon screw 32 and a check washer 33, wherein two ends of the vibration isolation cylinder section 38 are provided with sealing folded gaskets 36, two ends of the vibration isolation cylinder section 38 are respectively connected with the cylindrical barrel 10 and a girder thrust plate 37 in a sealing manner through the respective vibration isolation cylinder section compression flange 25 and the sealing folded gaskets 36, and are compressed by the inner hexagon screw 32 and the check washer 33, and the girder thrust plate 37 is welded on the girder 21 in a sealing manner.
The vibration isolation mount 38 is circular in cross-section, but may be other shapes.
The base body of the vibration isolation cylinder section 38 is made of flexible rubber or flexible engineering plastics 35, and the spiral elastic steel wire 34 is buried in the middle of the base body of the flexible engineering plastics 35 to serve as a reinforcing material.
The foregoing detailed description is intended to illustrate and not limit the invention, which is intended to be within the spirit and scope of the appended claims, and any changes and modifications that fall within the true spirit and scope of the invention are intended to be covered by the following claims.
Claims (5)
1. Host computer vibration isolation device of hypergravity geotechnical centrifuge vacuum vessel, its characterized in that: the vacuum pressure-bearing device comprises a cylindrical barrel (10), a lower sealing flange (15), an upper sealing flange (16), a pressing device (17), a convex sealing head (19), a lower sealing head (7), a lower bearing sealing cover (4) and a sealing gasket (24) to form a closed vacuum pressure-bearing container; the high-speed rotor system (27) is enclosed in the cavity of the closed vacuum pressure-bearing container, hanging baskets (13) are respectively arranged at two sides of a rotating arm (14) of the centrifuge of the high-speed rotor system (27), a cylindrical cooling device (11) is arranged between the inner side of the cylindrical barrel (10) and the high-speed rotor system (27), the lower end of a main shaft (12) of the high-speed rotor system (27) passes through a lower bearing sealing cover (4) and a lower bearing system (3), extends out of a lower sealing head (7), and then is sequentially connected with the coupler (2) and the motor (1), so that the lower bearing system (3), the coupler (2) and the motor (1) are isolated outside the vacuum pressure-bearing cavity; the upper end of a main shaft (12) of the high-speed rotor system (27) is connected with an upper bearing system (18) through an upper seal plate (29);
the upper bearing system (18) mainly comprises an upper bearing support ring (28) and a plurality of girders (21) to form a radial support structure, wherein the girders (21) are symmetrically distributed along a central axis; one end of each girder is connected with the upper bearing support ring (28), the other end of each girder penetrates through the cylindrical barrel (10) and then is connected with a girder base plate (31), each girder base plate (31) is connected to the lateral concrete (8), and the upper bearing system (18) is installed in the upper bearing support ring (28); the peripheries of one ends of a plurality of girders (21) are in clearance fit with the crossed holes of the cylindrical barrel (10), and each girder is in sealing connection with the cylindrical barrel (10) through a girder vibration isolation device (23) through a sealing hem gasket (36);
a plurality of side wall liquid inlet pipes (26) are arranged on the cylindrical barrel (10), and a vacuum pumping pipe (30) is arranged on the convex seal head (19); the cylindrical cooling device (11) is communicated with an upper liquid collecting pipe (22) and a lower liquid collecting pipe (9), the upper liquid collecting pipe (22) penetrates through the cylindrical barrel (10) to be connected to a low-temperature outlet of the refrigerator, and the lower liquid collecting pipe (9) penetrates through the cylindrical barrel (10) to be connected to a water return inlet of the refrigerator.
2. The host machine vibration isolation device of the supergravity geotechnical centrifuge vacuum container according to claim 1, wherein: the vibration isolation device (23) mainly comprises a vibration isolation cylinder section (38), a vibration isolation cylinder section pressing flange (25), an inner hexagon screw (32) and a check washer (33), two ends of the vibration isolation cylinder section (38) are provided with sealing hem washers (36), two ends of the vibration isolation cylinder section (38) are respectively connected with the cylindrical barrel body (10) and the girder thrust plate (37) in a sealing mode through the sealing hem washers (36) by the vibration isolation cylinder section pressing flange (25), the vibration isolation cylinder section pressing flange is pressed by the inner hexagon screw (32) and the check washer (33), and the girder thrust plate (37) is welded on the girder (21) in a sealing mode.
3. The host machine vibration isolation device of the supergravity geotechnical centrifuge vacuum container according to claim 1, wherein: the lower seal head (7) is welded or riveted on the bottom concrete (6) by adopting a lacing wire (5) embedded in the bottom concrete (6), and the lower seal head (7) and the bottom end of the cylindrical barrel body (10) are welded into a whole.
4. The host machine vibration isolation device of the supergravity geotechnical centrifuge vacuum container according to claim 2, wherein: the section of the vibration isolation cylinder section (38) is circular.
5. The vibration isolation device for the main machine of the vacuum container of the supergravity geotechnical centrifuge as claimed in claim 3, wherein: the base body of the vibration isolation cylinder section (38) is made of flexible rubber or flexible engineering plastics (35), and a spiral elastic steel wire (34) serving as a reinforcing material is embedded in the middle of the flexible engineering plastics (35) base body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911295520.9A CN111075885A (en) | 2019-12-16 | 2019-12-16 | Main machine vibration isolation device of super-gravity geotechnical centrifuge vacuum container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911295520.9A CN111075885A (en) | 2019-12-16 | 2019-12-16 | Main machine vibration isolation device of super-gravity geotechnical centrifuge vacuum container |
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| Publication Number | Publication Date |
|---|---|
| CN111075885A true CN111075885A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911295520.9A Pending CN111075885A (en) | 2019-12-16 | 2019-12-16 | Main machine vibration isolation device of super-gravity geotechnical centrifuge vacuum container |
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| CN (1) | CN111075885A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637770A (en) * | 2020-06-03 | 2020-09-08 | 中国联合工程有限公司 | Large-scale vertical vacuum heat exchange cabin body |
| CN114589015A (en) * | 2022-03-01 | 2022-06-07 | 中国工程物理研究院总体工程研究所 | Auxiliary shaft support integrated device for high-speed geotechnical centrifuge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637770A (en) * | 2020-06-03 | 2020-09-08 | 中国联合工程有限公司 | Large-scale vertical vacuum heat exchange cabin body |
| CN114589015A (en) * | 2022-03-01 | 2022-06-07 | 中国工程物理研究院总体工程研究所 | Auxiliary shaft support integrated device for high-speed geotechnical centrifuge |
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