Plunger pump with composite shell
A technology of composite materials and plunger pumps, which is applied to parts, pumps, and multi-cylinder pumps of elastic fluid pumping devices, and can solve the problems of inability to integrally form nylon materials, complex plunger pump shell structures, and high-pressure problems. Requirements are difficult to achieve and other issues, to achieve good vibration and noise reduction effects, reduce manufacturing difficulty and material costs, and reduce vibration and noise
Inactive Publication Date: 2012-08-15
ZHEJIANG UNIV
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Problems solved by technology
Because the rigidity of nylon is lower than that of metal, in the specific manufacturing application of plunger pump, it is difficult to meet the high pressure requirements of some stress-bearing parts such as the connection between various components, and the structure of the plunger pump shell is relatively complicated, which is usually impossible One-piece molding with nylon material
Method used
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[0021] The present invention will be further described below in conjunction with drawings and embodiments.
[0022] like figure 1 , figure 2 , image 3 As shown, the present invention includes a main shaft 1, a composite material front housing 2, a bearing 3, a bearing bush 4, a swash plate 5, a sliding shoe 6, a pressure plate 7, a plunger 8, a cylinder block 9, a flow plate 10, a bearing 11, and bolts Group 12, aluminum alloy rear shell 13, oil inlet 14, oil outlet 15, spring seat 16, swash plate spring 17, ball hinge 18, oil drain 19, adjusting plunger 20, adjusting plunger sleeve 21, Adjusting plunger chamber 22, oil drain pipe 23, pressure stabilizing pipe 24, regulating plunger chamber pipe 25, pressure valve screw 26, short spool 27, long spool 28, large spring base 29, small spring base 30, booster Chamber spring group 31, pressure control chamber spring group 32, small screw 33, outlet pressure valve 34 and large screw 35.
[0023] The composite material front ho...
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The invention discloses a plunger pump with a composite shell. A spindle is mounted in a cavity formed by combining a composite front shell body and an aluminum alloy rear shell body; a thrust plate is fixed on the rear shell; a thrust plate sleeved on the spindle, a cylinder and a spherical hinge which rotate along with the spindle and a swash plate sleeved on the spindle are sequentially mounted outwards from the rear shell; a plunger is axially mounted on the cylinder; a sliding shoe can contact with the swash plate and is sleeved in a hole of a pressure plate; two bearing bushes are fixed on the two arc surfaces of the front shell respectively; the arc surfaces on the two sides of the swash plate are matched with respective bearing bushes respectively; a swash plate spring is mounted between one side of the upper part of the swash plate and the front shell; an adjusting plunger at the upper part of the shell props against the other side surface of the upper part of the swash plate; and an exit pressure valve is mounted on the rear shell and inputs pressure into an adjusting plunger cavity through a pipeline. By adopting a composite, the weight of the plunger pump is reduced, and the vibration reduction denoising effect is good; and the exit pressure valve is subjected to two-stage control, the maximum exit pressure is increased, and the exit pressure fluctuation of the plunger pump is less.
Description
technical field [0001] The present invention relates to a plunger pump, in particular to a plunger pump with a composite material housing. Background technique [0002] The plunger pump is mainly composed of a power mechanism, a plunger, a plunger frame, a casing, and a low-pressure oil inlet valve and a high-pressure oil inlet valve arranged on the casing. The main material of the plunger pump housing currently on the market is cast iron or aluminum alloy, and a small amount is made of glass fiber reinforced nylon. Due to the heavy weight of the shell made of cast iron, the sharp rise in the price of aluminum alloy materials and the complexity and high cost of aluminum alloy casting technology, it is already a must to use reinforced polymer composite materials such as plastics to replace metal materials in the manufacture of plunger pumps. An application trend. [0003] The shell materials of existing plunger pumps mainly include: [0004] 1. Cast iron. Its characterist...
Claims
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Login to View More IPC IPC(8): F04B53/16F04B53/10F04B1/22
Inventor 欧阳小平谭路遥方旭
Owner ZHEJIANG UNIV