CN202416568U - Temperature stress controlling expansion joint - Google Patents
Temperature stress controlling expansion joint Download PDFInfo
- Publication number
- CN202416568U CN202416568U CN2011203850739U CN201120385073U CN202416568U CN 202416568 U CN202416568 U CN 202416568U CN 2011203850739 U CN2011203850739 U CN 2011203850739U CN 201120385073 U CN201120385073 U CN 201120385073U CN 202416568 U CN202416568 U CN 202416568U
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- China
- Prior art keywords
- sleeve
- right sleeve
- disk spring
- centre pilot
- baffle plate
- Prior art date
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- 238000011900 installation process Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 27
- 230000008646 thermal stress Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000035882 stress Effects 0.000 description 11
- 238000010276 construction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
温度应力控制伸缩节，属于应力控制装置。主要包括内、中、外三部分，内层为中心导杆，外层为左套筒和右套筒，中间层包括碟形弹簧(4)、(5)、(6)和橡胶弹簧(10)。左套筒与右套筒部分接触连接。伸缩节传力途径：碟形弹簧(4)、(6)在温度荷载作用下结构杆件承受轴向拉应力时产生变形以实现释能；碟形弹簧(5)在温度荷载作用下结构杆件承受轴向压应力时产生变形以实现释能；橡胶弹簧(10)能承受相对较小的初始压应力，并能承受突然冲击荷载。本实用新型的控制温度应力伸缩节，承载力幅值宽并能承受拉压应力，传力途径明确，可以根据需要产生相应的变形，释放温度应力，稳定性好，安装过程简单快捷，可以与不同直径的圆钢管连接。
The temperature stress control expansion joint belongs to the stress control device. It mainly includes inner, middle and outer parts, the inner layer is the center guide rod, the outer layer is the left sleeve and the right sleeve, and the middle layer includes disc springs (4), (5), (6) and rubber springs (10 ). The left sleeve is partially connected with the right sleeve. Expansion joint force transmission path: Disc springs (4) and (6) deform when the structural rods bear axial tensile stress under temperature loads to realize energy release; disc springs (5) under temperature loads When the component is subjected to axial compressive stress, it deforms to realize energy release; the rubber spring (10) can bear relatively small initial compressive stress and can withstand sudden impact load. The temperature stress control expansion joint of the utility model has a wide bearing capacity amplitude and can withstand tensile and compressive stresses. The force transmission path is clear, and corresponding deformation can be generated according to needs, and the temperature stress can be released. The stability is good, and the installation process is simple and fast. Connection of round steel pipes of different diameters.
Description
Technical field
The utility model relates to a kind of device of novel thermal stresses control, is specially a kind of member temperature stress release expansion coupling that can be widely used in the architectural space structure, belongs to the Stress Control device.
Background technology
Along with the enhancing and the demands of social development of national economic strength, large span spatial structure has obtained swift and violent development in China, and practical applications quantity increases, and form of structure also trends towards diversification.This to structure the safety in design, construction and use have higher requirement.Space structures is a high order statically-indeterminate structure system, and it is bigger that structure is influenced by temperature action, the construction measure part release temperature stress that adopt in existing space structure design and the work progress more, and processing method commonly used is following:
(1) shrinkage joint.It is the most frequently used a kind of measure of release temperature stress in the general structure that the shrinkage joint is set; But because the diversity of space structures form; The space that internal request is opened wide, middle part are provided with temperature joint possibly cause adverse effect to the globality safety and the function of use of structure;
(2) thermal stresses discharges node one of form commonly used in large span spatial structure, the thermal stresses of this category node in can releasing structure.Yet owing to receive the restriction of form of structure, node lacks versatility, can only design according to the cross section characteristics of concrete structure rod member (round steel pipe), makes troubles to engineering design and construction;
(3) the hinged plank support thermal stresses in the releasing structure on the whole, but its bearing capacity is limited.
The utility model content
The utility model purpose has been to overcome the limitation of existing engineering thermal stresses control measure; A kind of thermal stresses expansion coupling device has been proposed; This expansion coupling is installed in structure and influenced in the bigger rod member by thermal stresses; It is big to have the bearing capacity amplitude, can discharge axially to draw, press thermal stresses, promptly can discharge the thermal stresses under the big situation of year positive and negative temperature difference; The expansion coupling end uses flange bolt to connect, and in construction, carries out the member convenient and fast connection, reduces difficulty of construction; Go for different cross section diameter rod member, the expansion coupling structure is succinct, has the scope of application widely.
In order to achieve the above object, the utility model has adopted following technical scheme.A kind of control thermal stresses expansion coupling; It is characterized in that: said thermal stresses expansion coupling, comprise interior, in, outer three parts, internal layer is one " worker " type centre pilot (3); Skin is a sleeve; Comprise left sleeve (1) and right sleeve (2), the intermediate layer is the plastic deformation part of expansion coupling structure, comprises disk spring (4), (5), (6) and rubber spring (10).Left sleeve (1) is a cylindrical tube, and an end adopts the flange sealing, and another sealing end center drilling, hole can satisfy centre pilot and pass; Right sleeve (2) is a cylindrical tube; One end adopts the flange sealing; The other end opens wide, and to the baffle plate that is connected with a band center hole, this baffle plate is divided into two parts with right sleeve at right sleeve (2) inner vertical shaft; Form semiclosed chamber between right sleeve flange blind end and the baffle plate, between right sleeve open end and baffle plate, form open chamber; Centre pilot (3) passes left sleeve (1) sealing end centre bore and right sleeve (2) its centre hole; The external surface of left sleeve (1) contacts and socket with the inner surface of the open chamber of right sleeve (2), has enough distances can satisfy the requirement of expansion coupling distortion between right sleeve (2) open end and the sealing of left sleeve (1) flange; In left sleeve (1), be equipped with disk spring (4) between " worker " type centre pilot end inboard and the sealing end, between " worker " type centre pilot end and left sleeve (1) the flange blind end rubber spring (10) be housed; In semiclosed chamber, be equipped with disk spring (6) between " worker " type centre pilot end inboard and the baffle plate, between " worker " type centre pilot end and right sleeve (2) the flange blind end rubber spring (10) be housed; Between left sleeve (1) sealing end and right sleeve (2) baffle plate, disk spring (5) is housed.
The semiclosed chamber of above-mentioned disk spring (4) the tube thick be preferably greater than open chamber the tube thick; The open chamber barrel of left sleeve barrel and right sleeve is reserved temporary fixed used hole (8) in the installation process simultaneously; Composite combined is adopted in disk spring (4), (5), (6), promptly adopts involutory and superimposed two kinds of combinations simultaneously, satisfies expansion coupling distortion and demands for bearing capacity.Disk spring (4) contacts with left sleeve (1) sealing end through the edge, through center and " worker " type centre pilot end in contact; Disk spring (5) contacts with left sleeve (1) sealing end external surface through the edge, contacts with right sleeve (2) baffle plate external surface through the edge; Disk spring (6) contacts with right sleeve baffle plate through the edge, through center and " worker " type centre pilot end in contact.
When centre pilot (3) contacts with left and right sleeve, do rounding for reducing friction and handle.
Centre pilot right ends processing mode is different, and the left side uses nut (7) to connect according to installation requirement.
Do lubricated for reducing friction between the left and right sleeve contact surface.
Described thermal stresses expansion coupling, the form with structural member (round steel pipe) adopts flange bolt to be connected adopts flange when the round steel pipe end is connected with node, can realize that the round steel pipe of different-diameter is connected with node.
During work, this expansion coupling force path: disk spring (4) and (6) produce distortion to realize release temperature stress under the temperature load effect, when structural member bears axial tension stress; Disk spring (5) produces distortion to realize release temperature stress when structural member bears axial compression stress under the temperature load effect; Rubber spring can bear less relatively compressive stress, and the load that withstands shocks.
Disk spring is the main member that expansion coupling carries and is out of shape, and the selection of combining form is the principal element that influences expansion coupling supporting capacity and deformability.The utility model adopts the form of composite combined, and the difference of involutory combination can satisfy the requirement of different distortion amount; The difference of superimposed combination can satisfy the requirement of different axial forces.Accompanying drawing 3,4,5 has provided the contact form of disk spring (4), (5), (6) and sleeve and centre pilot, and the sheet of disk spring is several need be adjusted according to carrying and deflection.
Need carry out precompressed or prestretching according to rod member stress at normal temperatures during construction, to guarantee node supporting capacity at normal temperatures.
The control thermal stresses expansion coupling of the utility model, the strong stress that also can bear both direction of supporting capacity, force path is clear and definite; Can produce corresponding distortion as required, good stability, installation process simple and fast; Can be connected with the round steel pipe of different-diameter, have the scope of application widely.
Description of drawings
The sectional drawing of Fig. 1 the utility model embodiment;
The elevation of Fig. 2 the utility model embodiment;
Disk spring (4) the combining form figure of Fig. 3 the utility model embodiment;
Disk spring (5) the combining form figure of Fig. 4 the utility model embodiment;
Disk spring (6) the combining form figure of Fig. 5 the utility model embodiment;
Among the figure: the 1-left sleeve; The right sleeve of 2-; The 3-centre pilot; The 4-disk spring; The 5-disk spring; The 6-disk spring; The 7-nut; 8-reserves installing hole; The 9-flange; The 10-rubber spring.
The specific embodiment
Embodiment 1
Specify the structure and the installation process of the utility model below in conjunction with accompanying drawing 1-4.
Pack into the right end portion of centre pilot (3) of disk spring (6) after at first will making up; Then right sleeve (2) is inserted in centre pilot, thereafter disk spring (5), left sleeve (1) is inserted in guide rod successively, carry out temporary fixed to the hole according to the interim hole of pre-designed installation (8); The disk spring (4) of packing into; Use nut (7) that the left end of guide rod is fixed, remove the temporary fixed measure in installing hole hole after the installation, the beginning operate as normal.The sectional drawing of the utility model embodiment is seen Fig. 1; The elevation of the utility model embodiment is seen Fig. 2.
A kind of control thermal stresses expansion coupling; Comprise interior, in, outer three parts; Internal layer is one " worker " type centre pilot (3), and skin is a sleeve, comprises left sleeve (1) and right sleeve (2); The intermediate layer is the plastic deformation part of expansion coupling structure, comprises disk spring (4), (5), (6) and rubber spring (10).Left sleeve (1) is a cylindrical tube, and an end adopts the flange sealing, and another sealing end center drilling, hole can satisfy centre pilot and pass; Right sleeve (2) is a cylindrical tube; One end adopts the flange sealing; The other end opens wide, and to the baffle plate that is connected with a band center hole, this baffle plate is divided into two parts with right sleeve at right sleeve (2) inner vertical shaft; Form semiclosed chamber between right sleeve flange blind end and the baffle plate, between right sleeve open end and baffle plate, form open chamber; Centre pilot (3) passes left sleeve (1) sealing end centre bore and right sleeve (2) its centre hole; The external surface of left sleeve (1) contacts and socket with the inner surface of the open chamber of right sleeve (2), has enough distances can satisfy the requirement of expansion coupling distortion between right sleeve (2) open end and the sealing of left sleeve (1) flange; In left sleeve (1), be equipped with disk spring (4) between " worker " type centre pilot end inboard and the sealing end, between " worker " type centre pilot end and left sleeve (1) the flange blind end rubber spring (10) be housed; In semiclosed chamber, be equipped with disk spring (6) between " worker " type centre pilot end inboard and the baffle plate, between " worker " type centre pilot end and right sleeve (2) the flange blind end rubber spring (10) be housed; Between left sleeve (1) sealing end and right sleeve (2) baffle plate, disk spring (5) is housed.The semiclosed chamber of disk spring (4) the tube thick be preferably greater than open chamber the tube thick; The open chamber barrel of left sleeve barrel and right sleeve is reserved temporary fixed used hole (8) in the installation process simultaneously; Composite combined is adopted in disk spring (4), (5), (6); Promptly adopt involutory and superimposed two kinds of combinations simultaneously; Satisfy expansion coupling distortion and demands for bearing capacity, disk spring (4) contacts with left sleeve (1) sealing end through the edge, through center and " worker " type centre pilot end in contact; Disk spring (5) contacts with left sleeve (1) sealing end external surface through the edge, contacts with right sleeve (2) baffle plate external surface through the edge; Disk spring (6) contacts with right sleeve baffle plate through the edge, through center and " worker " type centre pilot end in contact.Centre pilot (3) contacts and does rounding with left and right sleeve and handles.The center is led the left side and is used nut (7) to connect according to installation requirement.When work, the disk spring in the expansion coupling (4), disk spring (5), disk spring (6) and rubber spring (10) all are to be in compressive state.
Accompanying drawing 3,4,5 has provided the contact form of disk spring (4), (5), (6) and sleeve and centre pilot, and the sheet of disk spring is several need be adjusted according to carrying and deflection.
Claims (6)
1. a thermal stresses is controlled expansion coupling; It is characterized in that: comprise interior, in, outer three parts; Internal layer is one " worker " type centre pilot (3), and skin is a sleeve, comprises left sleeve (1) and right sleeve (2); The intermediate layer is the plastic deformation part of expansion coupling structure, comprises disk spring (4,5,6) and rubber spring (10); Left sleeve (1) is a cylindrical tube, and an end adopts the flange sealing, and another sealing end center drilling, hole can satisfy centre pilot and pass; Right sleeve (2) is a cylindrical tube; One end adopts the flange sealing; The other end opens wide, and to the baffle plate that is connected with a band center hole, this baffle plate is divided into two parts with right sleeve at right sleeve (2) inner vertical shaft; Form semiclosed chamber between right sleeve flange blind end and the baffle plate, between right sleeve open end and baffle plate, form open chamber; Centre pilot (3) passes left sleeve (1) sealing end centre bore and right sleeve (2) its centre hole; The external surface of left sleeve (1) contacts and socket with the inner surface of the open chamber of right sleeve (2), has enough distances can satisfy the requirement of expansion coupling distortion between right sleeve (2) open end and the sealing of left sleeve (1) flange; In left sleeve (1), be equipped with disk spring (4) between " worker " type centre pilot end inboard and the sealing end, between " worker " type centre pilot end and left sleeve (1) the flange blind end rubber spring (10) be housed; In semiclosed chamber, be equipped with disk spring (6) between " worker " type centre pilot end inboard and the baffle plate, between " worker " type centre pilot end and right sleeve (2) the flange blind end rubber spring (10) be housed; Between left sleeve (1) sealing end and right sleeve (2) baffle plate, disk spring (5) is housed.
2. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that the thick tube greater than open chamber of the tube of the semiclosed chamber of above-mentioned disk spring (4) is thick.
3. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that the open chamber barrel of left sleeve barrel and right sleeve is reserved temporary fixed used hole (8) in the installation process simultaneously.
4. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that disk spring (4,5,6) adopts the complex form of involutory and superimposed two kinds of combinations simultaneously.
5. according to a kind of thermal stresses control expansion coupling of claim 4, it is characterized in that disk spring (4) contacts with left sleeve (1) sealing end through the edge, through center and " worker " type centre pilot end in contact; Disk spring (5) contacts with left sleeve (1) sealing end external surface through the edge, contacts with right sleeve (2) baffle plate external surface through the edge; Disk spring (6) contacts with right sleeve baffle plate through the edge, through center and " worker " type centre pilot end in contact.
6. according to a kind of thermal stresses control expansion coupling of claim 1, it is characterized in that centre pilot uses nut (7) to connect according to installation requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203850739U CN202416568U (en) | 2011-10-11 | 2011-10-11 | Temperature stress controlling expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203850739U CN202416568U (en) | 2011-10-11 | 2011-10-11 | Temperature stress controlling expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202416568U true CN202416568U (en) | 2012-09-05 |
Family
ID=46741347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203850739U Expired - Lifetime CN202416568U (en) | 2011-10-11 | 2011-10-11 | Temperature stress controlling expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202416568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359186A (en) * | 2011-10-11 | 2012-02-22 | 北京工业大学 | Temperature stress control expansion joint |
| CN108086480A (en) * | 2017-12-14 | 2018-05-29 | 国网新疆电力有限公司经济技术研究院 | Temperature telescopic device applied to lattice framework |
-
2011
- 2011-10-11 CN CN2011203850739U patent/CN202416568U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359186A (en) * | 2011-10-11 | 2012-02-22 | 北京工业大学 | Temperature stress control expansion joint |
| CN102359186B (en) * | 2011-10-11 | 2013-10-16 | 北京工业大学 | Temperature stress control expansion joint |
| CN108086480A (en) * | 2017-12-14 | 2018-05-29 | 国网新疆电力有限公司经济技术研究院 | Temperature telescopic device applied to lattice framework |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20131016 |
|
| RGAV | Abandon patent right to avoid regrant |