Bridge damping support
A technology for shock-absorbing bearings and bridges, applied in the field of bridge shock-absorbing bearings, can solve problems such as the inability to apply pot-type rubber bearings well, and achieve outstanding mechanical properties, enhanced mechanical properties, tensile and tear resistance. high crack strength
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Embodiment 1
[0042] A bridge shock-absorbing bearing, such as figure 1 As shown, it includes a top plate 1, a stainless steel plate 2, a polytetrafluoroethylene plate 3, a middle steel plate 4, a rubber block 5 and a bottom basin 6 from top to bottom. The rubber block 5 is placed at the bottom of the bottom basin 6, the middle steel plate 4 is partly placed in the bottom basin 6, and a sealing ring 7 is arranged between the rubber block 5 and the middle steel plate 4.
Embodiment 2
[0044] The rubber block in embodiment one comprises the following parts by weight:
[0045] 60 parts of natural rubber;
[0046] Butadiene rubber 25 parts;
[0047] 1 part sulfur;
[0048] 3 parts of nano zinc oxide;
[0049] 2 parts stearic acid;
[0050] 0.8 part of zinc dialkyldithiophosphate;
[0051] 2 parts of silane coupling agent;
[0052] 20 parts of reinforcing agent, the reinforcing agent is made of diatomite and organic montmorillonite in a ratio of 1:1 by weight, the particle size of diatomite is 15 μm, and the particle size of organic montmorillonite is 5 μm;
[0053] 25 parts of carbon black;
[0054] Lecithin 1 part;
[0055] Magnesium oxide 0.2 parts.
[0056] The preparation method of rubber block is as follows:
[0057] Step 1: Bake 60 parts of natural rubber in an oven for 2 hours, then take it out into an open mill, add 1 part of lecithin and 25 parts of carbon black, and knead for 5 minutes at a reaction temperature of 160°C;
[0058] Step 2: Pu...
Embodiment 3
[0063]The rubber block in embodiment one comprises the following parts by weight:
[0064] 90 parts of natural rubber;
[0065] Butadiene rubber 40 parts;
[0066] 3 parts sulfur;
[0067] 6 parts of nano zinc oxide;
[0068] 4 parts stearic acid;
[0069] 1.5 parts of zinc dialkyldithiophosphate;
[0070] 5 parts of silane coupling agent;
[0071] 30 parts of reinforcing agent, the reinforcing agent is made of diatomite and organic montmorillonite in a ratio of 1:1 by weight, the particle size of diatomite is 30 μm, and the particle size of organic montmorillonite is 10 μm;
[0072] 35 parts of carbon black;
[0073] 3 parts lecithin;
[0074] Magnesium oxide 0.5 part.
[0075] The preparation method of rubber block is as follows:
[0076] Step 1: Bake 90 parts of natural rubber in an oven for 2 hours, then take it out to an open mill, add 3 parts of lecithin and 35 parts of carbon black, and knead for 5 minutes at a reaction temperature of 160°C;
[0077] Step 2: P...
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