Minitype oil detection metering pump
A metering pump and oil technology, which is applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve the problems that cannot meet the function of micro-flow metering, limit the wide application of metering pumps, and have large errors in repeated metering accuracy. Light weight, simple structure, and the effect of preventing explosion problems
Active Publication Date: 2017-02-15
AVIC BEIJING CHANGCHENG AVIATION MEASUREMENT & CONTROL TECH INST +2
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Problems solved by technology
The existing small metering pumps have a metering range of 0.2-10L / min, and there are disadvantages such as large volume, high cost, large error in repeated metering accuracy, short life and poor adjustability, while the oil flow rate in portable oil detection equipment is usually It is in the range of 0.02-0.2L / min, and has very high requirements on the volume, weight and metering accuracy of the metering pump
Therefore, the existing small-flow metering pumps cannot meet the function of micro-flow metering in portable oil detection equipment, which limits the wide application of metering pumps in portable oil detection equipment
Method used
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Embodiment Construction
[0011] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0012] A miniature oil detection metering pump is characterized in that the metering pump includes: an explosion-proof motor casing 2, a stepping motor 3, a flange 4, an end cover 5, a mounting bracket 7 and a pump body 9; the stepping motor 3 The flange 4 is fixed on the end cover 5; the explosion-proof motor housing 2 is screwed on the end cover 5; the explosion-proof motor housing 2 includes a cable lead-out assembly 1; the bearing 6 is installed on the end cover 5; The end cover 5 is fixed on the mounting bracket 7; the pump body 9 includes a pump shaft 10, a plunger rod 12, a pump head 13, an adjusting screw 11 and a pump cover 15; the pump body 9 is a cylindrical structure with a flange, The flange plate of the pump body 9 is threadedly connected with the mounting bracket 7. There is a gap on the cylindrical side wall of the pump body 9. B...
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The invention belongs to the technical field of pumps and relates to a minitype oil detection metering pump. The metering pump comprises an explosion-proof motor housing, a stepping motor, a flange plate, an end cap, an installation support and a pump body. The motor is isolated from the outside environment by adoption of the explosion-proof housing, and explosions can be prevented during delivery of flammable and combustible industrial oil. The non-valve design is adopted, and a plunger rod is made of ceramic materials and is in an L shape, so that the effect that a series of problems such as leakage and blocking in a traditional distributor are avoided when a pump head makes eccentric reciprocating circulation motion is ensured, and accordingly the metering accuracy is improved to a certain extent; besides, abrasion resistance, corrosion resistance and pressure resistance are achieved; and the phenomenon that a peristaltic pipe of a peristaltic pump and a membrane of a membrane pump are damaged frequently is avoided, so that the service life of the metering pump is prolonged to a great extent. By adoption of the two flow and direction adjusting modes, namely the stepping motor and an adjusting screw rod, adjustment is flexible, and the oil measurement range is 0.01-0.15 L / min.
Description
technical field [0001] The invention belongs to the technical field of pumps and relates to a miniature oil detection and metering pump. Background technique [0002] Metering pumps are a type of fluid delivery pump whose outstanding feature is that they can maintain a constant flow regardless of the discharge pressure. The use of metering pumps can simultaneously complete the functions of transportation, metering and adjustment, thereby simplifying the production process, and has been widely used in various industrial fields such as oil detection, petrochemical, pharmaceutical, and food. The existing small metering pumps have a metering range of 0.2-10L / min, and there are disadvantages such as large volume, high cost, large error in repeated metering accuracy, short life and poor adjustability, while the oil flow rate in portable oil detection equipment is usually It is in the range of 0.02-0.2L / min, and has very high requirements on the volume, weight and metering accurac...
Claims
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IPC IPC(8): F04B13/00F04B15/00F04B53/16F04B53/14F04B17/03
CPCF04B13/00F04B15/00F04B17/03F04B53/144F04B53/162
Inventor 张龙喜王燕山张梅菊刘德峰江慧婕王文瑾
Owner AVIC BEIJING CHANGCHENG AVIATION MEASUREMENT & CONTROL TECH INST