CN201784891U - Giant steel pipe inner supporting tight-jacking threaded structure - Google Patents
Giant steel pipe inner supporting tight-jacking threaded structure Download PDFInfo
- Publication number
- CN201784891U CN201784891U CN2010201951374U CN201020195137U CN201784891U CN 201784891 U CN201784891 U CN 201784891U CN 2010201951374 U CN2010201951374 U CN 2010201951374U CN 201020195137 U CN201020195137 U CN 201020195137U CN 201784891 U CN201784891 U CN 201784891U
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- out against
- screw
- steel pipe
- hold out
- support
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Abstract
A giant steel pipe inner supporting tight-jacking threaded structure comprises a tight-jacking screw and a top jacking structure. The tight-jacking screw is fixedly connected to the outer end of a pressure rod, a central line of the tight-jacking screw coincides with that of the pressure rod, the tight-jacking screw is connected with a jacking head in a threaded manner, and a spherical top of the jacking head is jacked on the pipe wall of a steel pipe. The structure guarantees inner supporting tight-jacking force so as to ensure inner supporting quality, and material and processing costs of the modified tight-jacking threaded structure are much lower than an original structure in terms of material cost or processing cost.
Description
(1) technical field
The utility model relates to huge steel pipe installation and transportation technical field, is specially to support in a kind of huge steel pipe to hold out against helicitic texture.
(2) background technology
Rice surplus huge penstock diameter reaches ten, and tube wall is thinner, thickness only is 26～58mm, each make joint length be one meter surplus.Indeformable when transporting and install in order to guarantee huge steel pipe tube coupling, must install interior support in the steel pipe.
Supporting every Pin in existing is the rice font structure on plane, is made of the centrosome that is in the axle center and radial and many compression rods of centrosome bonded assembly.Because of in the penstock installing later stage, interior support will be excised, thus interior support can not with the steel pipe joint welding.Have cross bar to connect between the outer end of the compression rod that interior support is adjacent, the outer end of each compression rod holds out against on the steel pipe inwall interior the support by holding out against helicitic texture.Arrange in two Pin and support have a small amount of montant parallel with the steel pipe longitudinal axis to connect between the parallel compression rod between two Pin in each tube coupling, two Pin in the steel pipe form pair inner supporting structures.
Existing hold out against helicitic texture comprise two ends be the positive and reverse return screw thread hold out against screw and top, on compression rod top and top, all have and hold out against the screw that screw matches, two ends screw out respectively when holding out against the screw rotation, hold out against on the steel pipe inwall.This kind holds out against only need rotate when helicitic texture supports in holding out against and holds out against screw, and the top that contacts with tube wall in theory should be motionless, and in actual use, the top often and then holds out against screw thread and rotates screw thread predetermincd tension wretched insufficiency together.
By theory of machines relational expression Q=kT/d as can be known, hold out against the pressure that screw thread produces and be directly proportional, and hold out against screw diameter d and be inversely proportional to the moment T that rotation holds out against screw.Therefore, producing under the situation of identical pressure, the diameter that holds out against screw thread is big more, and then to hold out against the needed moment of screw thread big more in rotation, and it is difficult more to construct.Once supported the predetermincd tension deficiency in occurring in the practice of construction, support in tube coupling transportation and installation process, occurring loosening, even obscission, this with pretension in support need moment of rotation excessive much relations are arranged.
(3) utility model content
The purpose of this utility model is to support in a kind of huge steel pipe of design to hold out against helicitic texture, and that supports in guaranteeing holds out against quality and cost-cutting.
Support in the huge steel pipe of the utility model design-calculated and hold out against helicitic texture and comprise and hold out against screw and top, inner and the interior centrosome that supports the rice font structure of press rods is captiveed joint, holding out against screw is threaded with the top, the top head stays on the steel pipe tube wall, the top head is a sphere shape, top bottom centre has and hold out against the screw that screw matches, and the middle part, top has and the through hole of axis normal wherein; Hold out against screw and be fixedly connected on the press rods outer end, hold out against the central lines of screw and press rods.
Press rods is a solid drawn pipe, and the end face vertical with its line of centers fixed in the outer end, holds out against screw and vertically is fixed in its end face center.End surface thickness is 15～20 millimeters.Holding out against screw diameter is 40～50 millimeters, and its length of thread is 200～300 millimeters.
Fixing thick 25～40 millimeters bottom surface, bottom, top, bottom center is and holds out against the screw that screw matches that the top length overall is 250～400 millimeters.Diameter of through hole is 30～40 millimeters on it
Earlier the top is spun on holding out against on the screw of press rods outer end during use, inserts tool pins in the through hole that comes directly towards when holding out against, rotate the top, the head sphere of top and the contact radius of steel pipe tube wall are very little, and the friction resistance moment on contact point is just very little.After holding out against, less because of the diameter that holds out against screw, its rotational resistance square is relatively large, is difficult for loosening.
Supporting the beneficial effect that holds out against helicitic texture in the huge steel pipe of the present utility model is: when 1, rotating the top, press rods can not rotated thereupon, the pressure that supports in guaranteeing, thereby the quality that supports in guaranteeing; 2, originally holding out against screw is that round steel is made, single thread screw, and it is that solid drawn pipe is made, two ends positive and reverse return screw thread that existing double end holds out against screw, and from material cost or be processed into originally, it is all much lower than original design to hold out against the helicitic texture cost after the improvement.
(4) description of drawings
Below in conjunction with drawings and Examples the utility model is further specified,
Fig. 1 is for supporting and hold out against the structural representation of helicitic texture embodiment in this huge steel pipe;
Fig. 2 holds out against the helicitic texture partial enlarged drawing for supporting in the huge steel pipe of the utility model;
Fig. 3 holds out against the helicitic texture partial enlarged drawing for interior support of huge steel pipe before improving structure.
Fig. 4 is that the K of Fig. 1 is to view.
Among the figure, 1. inner bracing piece 2. holds out against screw thread, the 3. interior top of supporting, and Fig. 2 and Fig. 3 are the partial enlarged drawing of I among Fig. 1.
(5) specific embodiment
Support in this huge steel pipe and hold out against helicitic texture embodiment such as Fig. 1, Fig. 4 and shown in Figure 2, comprise and hold out against screw and top, inner and the interior centrosome that supports the rice font structure of interior abutment pressure bar is captiveed joint, the outer end with hold out against screw and be connected, hold out against the screw other end and be threaded with the top, the top head stays on the steel pipe tube wall, and press rods is a solid drawn pipe, the end face vertical with its line of centers fixed in the outer end, and end surface thickness is 16 millimeters.Hold out against the screw vertical welding and be connected to its end face center, holding out against screw diameter is 48 millimeters, and its length of thread is 250 millimeters.
The top head is a sphere shape, fixing thick 30 millimeters bottom surface, bottom, top, and bottom center is and holds out against the screw that screw matches that the top length overall is 300 millimeters.Top middle part have with the diameter of axis normal wherein be 35 millimeters through holes.Fig. 3 is for holding out against the partial enlarged drawing of helicitic texture before improving.
The foregoing description is the specific case that the purpose of this utility model, technical scheme and beneficial effect are further described only, and the utility model is not to be defined in this.All any modifications of within scope of disclosure of the present utility model, being made, be equal to replacement, improvement etc., all be included within the protection domain of the present utility model.
Claims (7)
1. support in the huge steel pipe and hold out against helicitic texture, comprise holding out against screw and top, the inner and interior centrosome that supports the rice font structure of press rods is captiveed joint, and holds out against screw and is threaded with the top, and the top head stays on the steel pipe tube wall, it is characterized in that:
Described top head is a sphere shape, and top bottom centre has and hold out against the screw that screw matches, and the middle part, top has and the through hole of axis normal wherein; Hold out against screw and be fixedly connected on the press rods outer end, hold out against the central lines of screw and press rods.
2. support in the huge steel pipe according to claim 1 and hold out against helicitic texture, it is characterized in that:
Described press rods is a solid drawn pipe, and the end face vertical with its line of centers fixed in the outer end, holds out against screw and vertically is fixed in its end face center.
3. support in the huge steel pipe according to claim 2 and hold out against helicitic texture, it is characterized in that:
Described press rods outer end end surface thickness is 15～20 millimeters.
4. support in the huge steel pipe according to claim 1 and hold out against helicitic texture, it is characterized in that:
The described screw diameter that holds out against is 40～50 millimeters, and its length of thread is 200～300 millimeters.
5. support in the huge steel pipe according to claim 1 and hold out against helicitic texture, it is characterized in that:
Fixing thick 25～40 millimeters bottom surface, bottom, described top, bottom center is and holds out against the screw that screw matches.
6. support in the huge steel pipe according to claim 1 and hold out against helicitic texture, it is characterized in that:
Described top length overall is 250～400 millimeters.
7. support in the huge steel pipe according to claim 1 and hold out against helicitic texture, it is characterized in that:
The diameter of described top through hole is 30～40 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201951374U CN201784891U (en) | 2010-05-06 | 2010-05-06 | Giant steel pipe inner supporting tight-jacking threaded structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201951374U CN201784891U (en) | 2010-05-06 | 2010-05-06 | Giant steel pipe inner supporting tight-jacking threaded structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201784891U true CN201784891U (en) | 2011-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201951374U Expired - Fee Related CN201784891U (en) | 2010-05-06 | 2010-05-06 | Giant steel pipe inner supporting tight-jacking threaded structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201784891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341531A (en) * | 2013-07-19 | 2013-10-09 | 中国水利水电第六工程局有限公司 | Inner support device for manufacturing penstock |
| CN115355388A (en) * | 2022-10-20 | 2022-11-18 | 山东省水利科学研究院 | Anti-deformation supporting device for pipe orifice of pipeline and operation method |
-
2010
- 2010-05-06 CN CN2010201951374U patent/CN201784891U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341531A (en) * | 2013-07-19 | 2013-10-09 | 中国水利水电第六工程局有限公司 | Inner support device for manufacturing penstock |
| CN115355388A (en) * | 2022-10-20 | 2022-11-18 | 山东省水利科学研究院 | Anti-deformation supporting device for pipe orifice of pipeline and operation method |
| CN115355388B (en) * | 2022-10-20 | 2023-01-10 | 山东省水利科学研究院 | Anti-deformation supporting device for pipe orifice of pipeline and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120506 |