Anti-oil suction device for vacuum pump
A vacuum pump and anti-suction technology, which is applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve the problems of high cost and complicated devices, and achieve the effects of small resistance, good formability and good mechanical properties
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Embodiment 1
[0032] Such as figure 1 As shown, a vacuum pump anti-oil suction device includes a box body 7, a valve one 1 arranged on the top of the box body 7 and a valve two 9 arranged at the bottom of the box body 7, wherein the valve one 1 is connected to the vacuum pump, and the valve two 9 is connected to the transformer Connected; the sealing gasket 10 is fixed circumferentially at the bottom of the valve 1.
[0033] Inside the box body 7, a float guide bracket 2 is installed at a position corresponding to the valve one 1. The float guide bracket 2 is a cylindrical hollow bracket, and the float 3 is arranged inside the float guide bracket 2. The float 3 is a hollow structure, and the float 3 is under the action of force Can move up and down in the floating guide bracket 2. The top of the float 3 is provided with a sealing gasket 2 11; the lower part of the box body 7 is provided with an oil-splash separator 4, and the side of the oil-splash separator 4 is provided with an oil-gas d...
Embodiment 2
[0039] Embodiment 2 is basically the same structure as Embodiment 1, the difference is: as figure 2 and image 3 As shown, guide rails 14 are arranged on both sides of the inner wall of the float guide support 2 at symmetrical positions, and float guide rollers 12 are arranged at symmetrical positions on the sides of the float 3. The float guide rollers 12 are located in the guide rails 14, so the float guide rollers 12 can move along the guide rails 14 .
[0040] In this embodiment, both the box body 7 and the splash-proof oil separator 4 are steel plates with a thickness of 5 mm.
[0041] Gasket 1 and gasket 2 in this embodiment are both resin gaskets, wherein the resin gasket is made of the following raw materials in parts by weight: 20 parts of ABS resin, 30 parts of polypropylene, 10 parts of polyetheretherketone resin, 1 part of glass fiber, 5 parts of glycidyl methacrylate, 2 parts of initiator, 20 parts of solvent.
[0042] Wherein the initiator is dicumyl peroxide...
Embodiment 3
[0047] Gasket 1 and gasket 2 in this embodiment are both resin gaskets, wherein the resin gasket is made of the following raw materials in parts by weight: 22 parts of ABS resin, 28 parts of polypropylene, 12 parts of polyetheretherketone resin, 1.5 parts of glass fiber, 6 parts of glycidyl methacrylate, 3 parts of initiator, and 22 parts of solvent.
[0048] Wherein the initiator is dicumyl peroxide, and the solvent is a mixture of acetone and ethanol in a weight ratio of 2:1.
[0049] The resin gasket is prepared by the following steps:
[0050] (1) Add glycidyl methacrylate and initiator to the solvent, then add ABS resin and polypropylene, mix at high speed for 11 minutes, melt and extrude through the extruder at 180°C, cool and dry to obtain the grafted product;
[0051] (2) After mixing the grafted product, polyetheretherketone resin and glass fiber at 80°C evenly, extrude at 210°C through an extruder to make pellets, and mold it to obtain the product.
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Abstract
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