A Double Ball Compensation Joint for Balanced Axial Force
A technology for compensating joints and axial forces, applied in the direction of pipes/pipe joints/fittings, adjustable connections, passing elements, etc., can solve the problems of affecting work, high cost, large floor space, etc. Effects of human and material costs
Active Publication Date: 2019-05-14
SHANGHAI KARON VALVES MACHINERY +1
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Problems solved by technology
The double ball compensation joint is a joint with large deflection. The double ball compensation joint can perform angle compensation and axial compensation within a certain range, but the disadvantage is that it cannot bear the pressure thrust, especially when installed in a corner In the pipeline, the pipeline will generate axial component force when it is under pressure, such as figure 1 As shown, this axial force component will cause a sudden or gradual movement of the pipeline, such as figure 2 As shown, it will bring safety hazards to the long-term operation of the pipeline. To overcome this axial force, it is necessary to build an additional supporting pier with a large area and high cost to support the pipeline, such as image 3 shown
[0003] Chinese patent CN201120205080 discloses a double-ball compensation joint, a spherical sleeve and a spherical telescopic tube that are nested together, and the two extend in opposite directions with a spherical spherical surface of the sleeve and a spherical surface of the telescopic tube, and the spherical sleeve The spherical telescopic tube and the spherical telescopic tube are connected with a spherical shell through a connecting piece. A section of the inner cavity of the two spherical shells is a spherical shape that matches the corresponding sleeve spherical surface and the telescopic tube spherical surface. The spherical telescopic tube is arranged on the spherical sleeve The inner cavity of the tube, and a sealing ring 2 is arranged between the spherical telescopic tube and the spherical sleeve, and an anti-off chuck connected to the spherical sleeve is arranged on the spherical telescopic tube, and the double-ball compensation joint ensures that the ball Both the sleeve and the spherical telescopic tube can move relative to the spherical shell, achieving greater deflection, and the spherical sleeve and the spherical telescopic tube can also move relative to each other to achieve the effect of axial compensation, but it cannot meet the requirements of balanced axial When this product is installed in pipelines with pumps, valves and other important equipment, it will greatly increase the axial bearing force of pumps, valves and other equipment, which will affect its work and even be damaged
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[0026] like Figure 4 As shown, the present invention includes a spherical sleeve 1, an inner insertion tube 3, an outer bearing tube 4, and a spherical telescopic tube 2 that are socketed together. Both the spherical sleeve 1 and the spherical telescopic tube 2 extend in opposite directions with spherical Shaped casing sphere 5 and telescopic tube sphere 6, the sphere casing 1 and the sphere telescoping tube 2 are all connected to a ball seat 7 through a connector, and a section of the inner chamber of the two ball seats 7 is in the shape of the corresponding casing sphere 5 The spherical shape matched with the spherical surface 6 of the telescopic tube has a protruding annular tube 31 in the middle of the inner insertion tube 3, and there are evenly arranged circular through holes 8 in the circumferential direction near the annular tube 31. The annular tube 31 part It is placed in the middle of the inner cavity of the outer bearing tube 4, and a seat sealing ring 9 is provid...
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The invention relates to a double-ball compensation connector capable of balancing axial force. The double-ball compensation connector capable of balancing axial force comprises a spherical sleeve pipe, a spherical telescopic pipe and spherical bases, wherein the spherical bases are arranged at the two ends of the double-ball compensation connector correspondingly; the spherical sleeve pipe and the spherical telescopic pipe are connected with seat covers of the spherical bases at the two ends in a sleeving mode correspondingly. A spherical sleeve pipe spherical surface is arranged on the part where the spherical sleeve pipe and the corresponding spherical base are connected in the sleeving mode. A spherical telescopic pipe spherical surface is arranged on the part where the spherical telescopic pipe and the corresponding spherical base are connected in the sleeving mode. The double-ball compensation connector further comprises an axial force balancing compensation device, one end of the axial force balancing compensation device is connected with the spherical sleeve pipe in a sleeving mode, and the other end of the axial force balancing compensation device is connected with the spherical telescopic pipe in a sleeving mode. Compared with the prior art, the double-ball compensation connector capable of balancing axial force has the advantages of providing the functions of angle compensation and axial displacement compensation, balancing the axial force and the like.
Description
technical field [0001] The invention relates to a double-ball compensation joint, in particular to a double-ball compensation joint for balancing axial force. Background technique [0002] With the development of modern industry and urbanization, the application of water transmission and distribution pipelines in long-distance multi-working condition water supply and drainage projects is increasing. However, problems such as pipeline deflection and expansion caused by ground subsidence, large vibration, complex terrain, seasonal changes, and large temperature difference between day and night will have a serious impact on the pipeline. At present, most of the pipe joints are installed at appropriate parts of the pipes to absorb the axial displacement caused by thermal expansion and contraction and to compensate the radial displacement caused by the subsidence of the foundation. The double ball compensation joint is a joint with large deflection. The double ball compensation ...
Claims
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IPC IPC(8): F16L27/06F16L27/12
CPCF16L27/06F16L27/12
Inventor李政宏
OwnerSHANGHAI KARON VALVES MACHINERY