Energy-balance-based compact type constant force spring hanger cam curve design method
A constant force spring, energy balance technology, applied in the direction of pipeline supports, mechanical equipment, pipes/pipe joints/pipe fittings, etc., can solve the problem that the compact constant force spring support and hanger cannot be directly applied, and achieve the result in a simple form and calculation. Simple process and small model error
Active Publication Date: 2020-01-07
SHANDONG UNIV OF TECH
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Problems solved by technology
[0004] Since the structure of the compact constant force spring hanger has a large change from that of the traditional main and auxiliary constant force spring hanger, when researching on the main and auxiliary constant force spring hanger in the prior art The established mathematical model and design method can no longer be directly applied to the compact constant force spring hanger
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[0037] Figure 1-5 It is the best embodiment of the present invention, below in conjunction with attached Figure 1-5 The present invention will be further described.
[0038] like figure 2 As shown, the compact constant force spring support hanger (hereinafter referred to as the support hanger) includes a housing 1, a central load tube 7 passes through the bottom center of the housing 1, and a load tube 6 is arranged on the top of the central load tube 7. Two ends of the load tube 6 are provided with a roller 5 respectively, and a knife-shaped cam 4 is respectively arranged on the outer sides of the two rollers 5 , and the roller 5 is in rolling contact with the inner surface of the knife-shaped cam 4 . A spring 2 is respectively hung on the outer surfaces of the knife-shaped cams 4 on both sides, and the other end of the spring 2 is fixed on the inner end surface of the housing 1, and a cam rotating shaft 3 is respectively arranged on the top of the knife-shaped cams 4, a...
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The invention discloses an energy-balance-based compact type constant force spring hanger cam curve design method and belongs to the technical field of constant force spring hangers. The energy-balance-based compact type constant force spring hanger cam curve design method is characterized by comprising the following steps that 1001, an energy transfer relation in the movement process of a compacttype constant force spring hanger is determined; 1002, spring force of a spring is determined; 1003, a differential equation of the rotation angle of a knife-type cam and the vertical displacement ofa load pipe is built; 1004, an algebraic equation of the rotation angle of the knife-type cam and the vertical displacement of the load pipe is built; 1005, a design equation of the profile curve ofthe knife-type cam is built; and 1006, and the design equation of the profile curve of the knife-type cam is solved. In the energy-balance-based compact type constant force spring hanger cam curve design method, the constant force spring hanger cam curve is designed according to the energy change relation in the movement process of a compact type constant force spring hanger, the obtained result is simple in form, and the model error is small.
Description
technical field [0001] The invention relates to a cam curve design method of a compact constant-force spring support and hanger based on energy balance, belonging to the technical field of constant-force spring support and hangers. Background technique [0002] Thermal power plants, nuclear power plants, petrochemical and heating companies all need pipelines ranging from hundreds of meters in length to hundreds of kilometers in length to transport materials such as gas, water, smoke, and wind, and need to be controlled in complex and alternating internal temperatures. , pressure, fluid loads and external wind, rain, shock loads continue to work reliably. Due to the load fluctuation of the pipeline and the thermal expansion and contraction of the pipe wall, the vertical deformation of the pipeline will be tens or even hundreds of millimeters. If a rigid support is used for support, it will hinder the vertical deformation of the pipeline, generate a large additional stress an...
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Login to View More IPC IPC(8): F16L55/035F16L3/00
CPCF16L3/00F16L55/035
Inventor 刚宪约杨露露吴海志朱晓蕙张帆
Owner SHANDONG UNIV OF TECH