A self-priming device for the linkage of the main shaft of the horizontal pump end
A technology of self-priming devices and horizontal pumps, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, rotary piston pumps, etc., and can solve the difficulties of dry grinding, self-priming and exhausting of main pumps , the limited self-priming height of the main pump, etc., to avoid cavitation, save materials, and achieve the effects of compact structure
Active Publication Date: 2018-05-04
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0002] For the end of the horizontal pump body with insufficient self-priming height, it is often necessary to install a self-priming device. The traditional self-priming device has a complex structure and requires an additional power source to drive, and the ability to raise the self-priming height of the main pump is limited, and it is easy to be exposed in complex working conditions. Difficulty in suction and exhaust, dry grinding of the main pump, damage to equipment in serious cases, etc.
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[0025] Referring to the accompanying drawings, a self-priming device for horizontal pump shaft linkage, including a pump body 3, the pump body 3 has a pump cavity, and a rotor 1 is arranged in the pump cavity, and the rotor 1 is rotatably Sleeved on the pump shaft 12, the cross-section of the pump chamber is circular, the cross-section of the rotor 1 is oval, and the major axis length of the oval (the cross-sectional shape of the rotor 1) is the same as that of the The diameter and length of the circle (the cross-sectional shape of the pump chamber) are equal;
[0026] A sliding passage is provided directly above the pump chamber, and the sliding passage communicates with the pump chamber through a gap provided on the pump chamber; a tank 7 is provided directly above the sliding passage, and the front of the tank 7 A blocking piece 11 is provided below, and the blocking piece 11 can be slidably arranged in the sliding passage up and down, and the blocking piece 11 seals the sl...
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A self-suction device for horizontal pump end spindle linkage. A rotor is disposed in a pump cavity. The rotor rotatably sleeves a pump shaft. A cross section of the pump cavity is circular, while a cross section of the rotor is elliptical, and the major axis of the ellipse is as long as the diameter of the circle. A sliding passage communicates with the pump cavity by means of a notch formed in the pump cavity. A block piece is disposed in the sliding passage in such a manner of sliding up and down, and seals the sliding channel. Rotating shafts are disposed at two sides below the block piece; rolling sliding pieces rotatably sleeve the rotating shafts, and bottoms of the sliding pieces prop against the top of the rotor. The bottom of a floater is connected with the block piece by means of a connecting rod penetrating through the bottom of a tank. A one-way outlet valve for discharging a fluid outwards is disposed at the top of the tank. A suction opening is formed at one side of a pump body, and a discharge opening is formed at the other side of the pump body. The pump cavity communicates with the inner cavity of the tank by means of the discharge opening and a discharge passage; and the discharge opening and the suction opening are located at two sides of the sliding passage, respectively.
Description
technical field [0001] The invention relates to a self-priming device for linkage of a main shaft at a horizontal pump end. Background technique [0002] For the end of the horizontal pump body with insufficient self-priming height, it is often necessary to install a self-priming device. The traditional self-priming device has a complex structure and requires an additional power source to drive, and the ability to raise the self-priming height of the main pump is limited, and it is easy to be exposed in complex working conditions. It comes from problems such as difficulty in suction and exhaust, dry grinding of the main pump, and damage to equipment in severe cases. Contents of the invention [0003] In order to overcome the defects in the background technology, the present invention provides a self-priming device for linkage of the main shaft at the end of a horizontal pump. [0004] The technical scheme that the present invention solves the above problems is: [0005] ...
Claims
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IPC IPC(8): F04C2/356F04C15/00F04D9/04F04D29/66
CPCF04C2/3562F04C15/00F04D9/04F04D29/669
Inventor 周水清张生昌邓鸿英马艺
Owner ZHEJIANG UNIV OF TECH