CN103062625B - Rotatable rod-type support device - Google Patents
Rotatable rod-type support device Download PDFInfo
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- CN103062625B CN103062625B CN201310015471.5A CN201310015471A CN103062625B CN 103062625 B CN103062625 B CN 103062625B CN 201310015471 A CN201310015471 A CN 201310015471A CN 103062625 B CN103062625 B CN 103062625B
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- ball bearing
- bearing pair
- typed ball
- rod
- support device
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Abstract
The invention relates to a rotatable rod-type support device for supporting low-temperature containers. The device is composed of a connecting end, a fixing end and a connecting rod; the connecting end comprises a connecting block with a vertical central penetrated hole; one side of the connecting block is fixedly connected with the outer wall of the container, and the upper end surface and the lower end surface of the connecting block respectively extend to form a construction element with a concave spherical cap and a convex spherical cap; the concave spherical cap is internally provided with a rotary nut the lower end of which is matched with the concave spherical cap so as to form a first spherical hinge pair; the convex spherical cap is placed on a rotary element the upper end surface of which is matched with the convex spherical cap so as to form a second spherical hinge pair; the rotary element has a vertical central penetrated hole, and is placed on an inner threaded end element connected with the upper end of the connecting rod; the rotary nut is screwed with the upper end of a dual-head stud; the dual-head stud penetrates through an upper fixing element, the connecting block and a lower fixing element, and the lower end of the dual-head stud is screwed with the inner threaded end element. The rotatable rod-type support device provided by the invention has the intensity and stability for fully supporting the containers, also has the characteristic of rotary position change, so that the temperature difference stress caused by support restriction in expansion and contraction of containers can be prevented.
Description
Technical field
The present invention relates to a kind of support device, especially a kind of rotatable flow resistance of rod-support device, changes and causes the low-temperature (low temperature) vessel that extends or shrink for support temperature.
Background technique
The setting of low-temperature (low temperature) vessel supporting structure not only will consider that the intensity of supporting element can be born the weight of container and medium and other are about load, also need to consider that container is filling expanding with heat and contract with cold after cryogenic media simultaneously, the setting that requirement is supported can not limit container and expand with heat and contract with cold, and avoids producing temperature difference stress owing to supporting constraint.Meanwhile, the support of low-temperature (low temperature) vessel is that vessel media is leaked one of hot main path, reduces leaking heat, and the day relative evaporation index that reduces container is the target that low-temperature (low temperature) vessel is pursued.
According to the applicant understood, the supporting structure of low-temperature (low temperature) vessel mainly contains two kinds at present: one is radial support structure, at shell cross section, support is radially set, owing to being subject to the restriction of thermal insulation layer size, this supporting structure length is shorter, generally selects the nonmetallic material such as glass fibre reinforced plastics, leaks heat to reduce; Another kind is fixed supporting leg structure, and this structure is manufactured easy for installation, but this structure is not considered expanding with heat and contract with cold of refrigerated storage tank.
Retrieve knownly, Patents has: the utility model patent " support device of inner vessel in low-temperature storage tank " that notification number is CN201314457Y, the utility model patent " supporting structure of the inner canister of tank of heavy jacketed low-temperature deep refrigerant storage " that notification number is CN201531743U and publication number are the application for a patent for invention " a kind of connection set for connecting low-temperature storage tank and base " of CN 1025982A.Above-mentioned CN201314457Y is radially or axially one of auxiliary support structure of the low-temperature (low temperature) vessel commonly used, and the material of employing is glass fibre reinforced plastics; CN201531743U is mainly strip suspension formula structure and coordinates glass reinforced plastic support; CN 1025982A is mainly the radial support structure that bolt is fixedly connected with, and adopting equally glass fibre reinforced plastics is insulator.Due to glass fibre reinforced plastic material unstable properties when lower than-196 DEG C of following temperature, therefore when lower than-196 DEG C, should not adopt glass fibre reinforced plastics as main support element material.
Analysis shows, above-mentioned prior art is not all suitable for the limited problem of the degrees of freedom of expanding with heat and contract with cold that solves container under low temperature environment, is therefore difficult to avoid temperature difference stress.
Summary of the invention
The object of the invention is to: the shortcoming existing for above-mentioned prior art, a kind of rotatable flow resistance of rod-support device that is applicable to full low temperature area is proposed, this device should guarantee under the prerequisite that bearing power, leaking heat are little, reserves the supported container degrees of freedom of expanding with heat and contract with cold.
In order to reach above object, rotatable flow resistance of rod-support device of the present invention is by the connecting end of the support vessels for being connected to, for the fixed end that is connected with ground or saddle, form for the connecting rod that connects described connecting end and fixed end; Described connecting end comprises the contiguous block with vertical central hole, and a side of described contiguous block and the outer wall of described container are connected, and its upper and lower end face extends respectively typed ball bearing pair member; In the typed ball bearing pair member of upper end, pack lower end into and match with it and form the rotating nut of the first typed ball bearing pair, the typed ball bearing pair member of lower end is placed in upper-end surface and matches with it and form on the revolving part of the second typed ball bearing pair; Described revolving part has vertical central hole, and is placed on the internal thread extremity piece being connected with connecting rod upper end; The upper end of described rotating nut and stud screws, and described stud is through the above fixed block, contiguous block, lower fixed block, and its lower end and described internal thread extremity piece screw.
Especially, the upper and lower end face of described contiguous block extends respectively and has the recessed and protruding member of spherical crown of spherical crown; In described spherical crown is recessed, pack lower end into and match with it and form the rotating nut of the first typed ball bearing pair, described spherical crown is protruding to be placed in upper-end surface and to match with it and form on the revolving part of the second typed ball bearing pair.Particularly, the upper and lower end face of described contiguous block has respectively the depression that embeds upper and lower fixed block; Described upper and lower fixed block has vertical central hole, and it is recessed that the upper-end surface of fixed part has spherical crown, and it is protruding that the lower end surface of described lower fixed block has spherical crown.
The present invention further improves, and described fixed end comprises the base plate being fixedly connected with ground or saddle, supports the buckling piece with epirelief spherical crown on described base plate, and the support lower end, upper end of described buckling piece matches with it and forms the end revolving part of the 3rd typed ball bearing pair; Revolving part of the described end is connected with the lower end of connecting rod, and has and radially extend eaves; The upper-end surface backup washer of described extension eaves, the upper end of described back-up ring forms spherical crown ring, and described spherical crown ring and internal surface match with it and form the end fixed block linking of the 4th typed ball bearing pair; The border that fixed block of the described end has vertical central hole and is connected towards downward-extension, with base plate.
Comparatively desirable mode of execution is: described the first typed ball bearing pair and the second typed ball bearing pair are concentric.Described the 3rd typed ball bearing pair and the 4th typed ball bearing pair are concentric.The adjacent contact part of each typed ball bearing pair all selects different metals to make.
Rotatable flow resistance of rod-support device of the present invention not only has the strength and stability that is enough to support vessels, effectively support vessels, and under the effect of many places revolute, there is the characteristic of 360 ゜ rotation displacements, therefore make container free-extension within the specific limits, while avoiding container to expand with heat and contract with cold, produce temperature difference stress because supporting constraint.
When concrete enforcement, those skilled in the art can select according to actual conditions total length and the physical dimension of rotatable flow resistance of rod-support device, to adapt to the design requirement of refrigerated storage tank.
Embodiment
Embodiment one
In the following description, a large amount of concrete details have been provided so that more thorough understanding of the invention.
The rotatable flow resistance of rod-support device of the present embodiment as depicted in figs. 1 and 2, by the connecting end of the support vessels 1 for being connected to, for the fixed end that is connected with ground or saddle, form for the connecting rod 10 that connects described connecting end and fixed end.The container 1 of the present embodiment is Horizontal type basin, can be also other form.
Connecting end comprises the contiguous block 5 with vertical central hole, and a side of this contiguous block and the outer wall of container 1 are connected, and its upper and lower end face has respectively the depression that embeds upper and lower fixed block 4,7.Upper and lower fixed block has vertical central hole, and it is recessed that the upper-end surface of upper fixing element 4 has spherical crown, and it is protruding that the lower end surface of lower fixed block 7 has spherical crown.In spherical crown is recessed, pack lower end into and match with it and form the rotating nut 3 of the first typed ball bearing pair, spherical crown is protruding to be placed in upper-end surface and to match with it and form on the revolving part 8 of the second typed ball bearing pair.Revolving part 8 also has vertical central hole, and is placed in the depression of internal thread extremity piece 9 upper-end surfaces that are fixedly connected with connecting rod 10 upper ends.Rotating nut 3 screws with the upper end of stud 6, and stud 6 is through upper fixing element 4, contiguous block 5, lower fixed block 7, and its lower end and internal thread extremity piece 9 screw.
Fixed end comprises the base plate 14 being fixedly connected with ground or saddle, support the buckling piece 15 with epirelief spherical crown, and the projection of the depression of base plate 14 upper surface middle part and buckling piece 15 lower surfaces is chimeric, relatively fixing on this base plate.The support lower end, upper end of buckling piece 15 matches with it and forms the end revolving part 12 of the 3rd typed ball bearing pair.This end revolving part 12 is fixedly connected with the lower end of connecting rod 10, and bottom has and radially extends eaves.Extend the upper-end surface backup washer 16 of eaves, the upper end of this back-up ring forms spherical crown ring, and spherical crown ring and the internal surface end fixed block 13 that forms the 4th typed ball bearing pair that matches is with it connected.End fixed block 13 has vertical central hole, is the bowl-shape of back-off, and border, towards downward-extension, is connected in the scrobicular ring that embedding base plate 14 upper surfaces match with it.Base plate 14 is spacing for typed ball bearing pair etc. is carried out, the weight of simultaneously bearing container and interior medium thereof, and by this weight transmitting to ground or saddle, there is the strength and stability that is enough to support vessels, effectively support vessels.
Connecting rod 10 is tubulose.In order to have desirable thermal insulation effect, the container 1 of the present embodiment has thermal insulation layer 2, and connecting rod 10 outsides are also surrounded by thermal insulating material 11.For preventing that phenomenon from appearring killing in same material while slip, the adjacent parts of each typed ball bearing pair selects unlike material to make, and the first spherical hinge and the second spherical hinge (being that rotating center overlaps) with one heart, and the 3rd spherical hinge and the 4th spherical hinge are concentric.Thereby guarantee whole device relative movement freely.
The rotatable flow resistance of rod-support device of the present embodiment has the characteristic (referring to Fig. 2) of rotatable displacement, and free-extension when container can be expanded with heat and contract with cold is avoided producing temperature difference stress because supporting constraint.The connecting end of container is installed on vessel level centerline, be that flow resistance of rod-support device axis and container wall outer rim are tangent, connecting rod has enough length, support device is selected all-metal material, there is heat isolating structure, can make leaking heat be down to enough low, thereby reduce the leaking heat of whole basin, avoid the nonmetallic material such as the glass fibre reinforced plastics problem of unstable properties at low temperatures simultaneously, be applicable to the medium temperature such as liquid hydrogen or liquid helium lower than the situation of-196 DEG C.
The present invention is illustrated by above-described embodiment, should be understood that, above-described embodiment is the object for giving an example and illustrating just, but not is intended to the present invention to be limited in described scope of embodiments.In addition it will be understood by those skilled in the art that, the present invention is not limited to above-described embodiment, can also make more kinds of variants and modifications according to instruction of the present invention, for example the every pair of typed ball bearing pair forms by fixed block and revolving part, and its kinematic pair surface of contact can be the conical surface, sphere, even multi-form, the various combination mode such as cylndrical surface forms.These variants and modifications all drop in the present invention's scope required for protection.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation after Fig. 1 embodiment distortion.
Claims (8)
1. a rotatable flow resistance of rod-support device, by the connecting end of the support vessels for being connected to, for the fixed end that is connected with ground or saddle, form for the connecting rod that connects described connecting end and fixed end; It is characterized in that: described connecting end comprises the contiguous block with vertical central hole, a side of described contiguous block and the outer wall of described container are connected, and its upper and lower end face extends respectively typed ball bearing pair member; In the typed ball bearing pair member of upper end, pack lower end into and match with it and form the rotating nut of the first typed ball bearing pair, the typed ball bearing pair member of lower end is placed in upper-end surface and matches with it and form on the revolving part of the second typed ball bearing pair; Described revolving part has vertical central hole, and is placed on the internal thread extremity piece being connected with connecting rod upper end; The upper end of described rotating nut and stud screws, and described stud is through the lower fixed block of the upper fixing element of contiguous block upper-end surface, contiguous block, contiguous block lower end surface, and its lower end and described internal thread extremity piece screw; Described fixed end comprises the base plate being fixedly connected with ground or saddle, supports the buckling piece with epirelief spherical crown on described base plate, and the support lower end, upper end of described buckling piece matches with it and forms the end revolving part of the 3rd typed ball bearing pair; Revolving part of the described end is connected with the lower end of connecting rod, and has and radially extend eaves; The upper-end surface backup washer of described extension eaves, the upper end of described back-up ring forms spherical crown ring, and described spherical crown ring and internal surface match with it and form the end fixed block linking of the 4th typed ball bearing pair; The border that fixed block of the described end has vertical central hole and is connected towards downward-extension, with base plate.
2. rotatable flow resistance of rod-support device according to claim 1, is characterized in that: the upper-end surface of described contiguous block is extended and had the recessed upper fixing element of spherical crown, and the lower end surface of described contiguous block is extended and had the protruding lower fixed block of spherical crown; In described spherical crown is recessed, pack lower end into and match with it and form the rotating nut of the first typed ball bearing pair, described spherical crown is protruding to be placed in upper-end surface and to match with it and form on the revolving part of the second typed ball bearing pair.
3. rotatable flow resistance of rod-support device according to claim 2, is characterized in that: the upper and lower end face of described contiguous block has respectively the depression that embeds upper and lower fixed block; Described upper and lower fixed block has vertical central hole, and it is recessed that the upper-end surface of fixed part has spherical crown, and it is protruding that the lower end surface of described lower fixed block has spherical crown.
4. rotatable flow resistance of rod-support device according to claim 3, is characterized in that: described the first typed ball bearing pair and the second typed ball bearing pair are concentric.
5. rotatable flow resistance of rod-support device according to claim 4, is characterized in that: described the 3rd typed ball bearing pair and the 4th typed ball bearing pair are concentric.
6. rotatable flow resistance of rod-support device according to claim 5, is characterized in that: the depression at described plate upper surface middle part and the projection of buckling piece lower surface are chimeric, relatively fixing.
7. rotatable flow resistance of rod-support device according to claim 6, is characterized in that: fixed block of the described end has vertical central hole, is the bowl-shape of back-off, and border, towards downward-extension, is connected in the scrobicular ring that embedding plate upper surface matches with it.
8. rotatable flow resistance of rod-support device according to claim 7, is characterized in that: the adjacent contact part of each typed ball bearing pair adopts different metals to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015471.5A CN103062625B (en) | 2013-01-16 | 2013-01-16 | Rotatable rod-type support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015471.5A CN103062625B (en) | 2013-01-16 | 2013-01-16 | Rotatable rod-type support device |
Publications (2)
| Publication Number | Publication Date |
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| CN103062625A CN103062625A (en) | 2013-04-24 |
| CN103062625B true CN103062625B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310015471.5A Active CN103062625B (en) | 2013-01-16 | 2013-01-16 | Rotatable rod-type support device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609228B (en) * | 2015-12-31 | 2018-04-03 | 上海联影医疗科技有限公司 | The suspension of cryostat |
| CN113048388B (en) * | 2021-04-28 | 2023-03-24 | 中车西安车辆有限公司 | Large-volume low-temperature tank car and vertical supporting structure and spherical hinge unit of inner tank body and outer tank body of large-volume low-temperature tank car |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB808739A (en) * | 1956-05-03 | 1959-02-11 | Ass Elect Ind | Improvements relating to supports for large structures |
| JPS599399A (en) * | 1982-07-05 | 1984-01-18 | Mitsubishi Heavy Ind Ltd | Supporting structure of aluminum spherical tank |
| CN2590953Y (en) * | 2002-12-26 | 2003-12-10 | 广东省石油化工专用设备公司开平机械厂 | Vehicle transport Low-temperature storage tank |
| RU2272216C1 (en) * | 2004-08-09 | 2006-03-20 | Федеральное Государственное унитарное предприятие Государственный научно-производственный ракетно-космический центр (ФГУП ГНПРКЦ "ЦСКБ-Прогресс") | Tank for liquefied gases |
| JP5088719B2 (en) * | 2006-12-28 | 2012-12-05 | 株式会社石井鐵工所 | Structure and construction method of spherical tank legs |
| CN201221675Y (en) * | 2008-09-02 | 2009-04-15 | 总装备部工程设计研究总院 | Low temperature vacuum thermal insulation spherical tank support column |
| CN201221674Y (en) * | 2008-09-02 | 2009-04-15 | 总装备部工程设计研究总院 | Low-temperature vacuum heat-insulation spherical tank support |
| CN203099329U (en) * | 2013-01-16 | 2013-07-31 | 航天晨光股份有限公司 | Rotational rod type support device |
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Effective date of registration: 20160321 Address after: 211299 No. 1 Chenguang Road, Yong Yang Town, Lishui District, Jiangsu, Nanjing Patentee after: NANJING CHENGUANG ART ENGINEERING CO., LTD. Address before: 211100 Tianyuan Middle Road, Jiangning economic and Technological Development Zone, Jiangsu, China, No. 188, No. Patentee before: Aerosun Corp. |