CN201730831U

CN201730831U - Self-control type self- suction device applied for large-sized pump

Info

Publication number: CN201730831U
Application number: CN2009202241168U
Authority: CN
Inventors: 郜璋顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2011-02-02
Anticipated expiration: 2019-09-30

Abstract

The utility model discloses a self-control type self- suction device applied for a large-sized pump, which belongs to the mechanical manufacture industry of pumps, and is an auxiliary mechanism of pump main bodies, the purpose thereof is that the self-control type self- suction device implements inspiration and diversion for pump bodies which are arranged on higher positions above liquid surface of sucked fluid medium, in particular to large-sized pumps, thereby leading the pump bodies to enter a normal operating state. Existing large-sized pump inspiration diversion devices use expensive small-sized vacuum pumps and vacuum water storage tanks with large volume which are additionally matched, the self-control type self- suction device just needs to mount a set of absorb exhaust mechanisms whose rubber diaphragms do reciprocating motion on the outer portion of pump shafts of the large pumps, and absorbs and exhausts air of pump work cavities through air suction pipes, and the self-control type self- suction device enters a reserve state through a self-control mechanism which is designed specially after sucked medium flows to the work cavities to normally operate through atmospheric action. The self-control type self- suction device has the advantages of simple structure, low cost, sensitive operation and steady work and the like, and is widely used for industry and civil fields using large-sized pumps.

Description

A kind of self-controlled type strong self-suction device that applies to magna pump

Technical field:

The utility model belongs to the pump class industry of machine-building, it is the assisting agency of pump human subject, its purposes be for be positioned at be sucked the above higher position of flowing medium liquid level the pump human subject especially magna pump implement air-breathing diversion, even also the active chamber of magna pump forms relative vacuum, make to be sucked medium effect is flowed into by barometric pressure, thereby make pump enter normal operating condition.Be widely used in using industry, agricultural and the civil area of magna pump.

Background technique:

The air-breathing water diversion apparatus of existing magna pump mostly is to utilize to be equipped with minipump and vacuum water storage tank dual mode in addition, minipump is expensive, also want supporting other electric apparatus control apparatus and lay very long aspirating air pipe, the manufacture cost costliness, operation is trouble especially; The vacuum water storage tank is bulky, and floor space is wide, and is particularly more too fat to move with the supporting vacuum water storage tank of magna pump, and difficulty is installed.And other also all uses for reference this dual mode with the supporting strong self-suction device of magna pump, does not significantly improve on structure and performance.

Summary of the invention:

Simpler in order to make at the structure of the strong self-suction device of the air-breathing diversion function of having of pump human subject especially magna pump, cost is cheaper, improve its Operational Figure Of Merit and working stability, the technological scheme that the utility model is taked is to put into the driving mechanism of strong self-priming in this device box outside being installed on pump shaft, driving mechanism is made up of clutch, eccentric wheel and wearing piece etc., casing is outer to be the main suction air cavity that constitutes with the diaphragm of rubber, links to each other with pump case by sucking pipe and enters the pump work chamber.Device box is installed on outside the pump shaft and is connected with pump case, clutch configuration eccentric wheel is set on the pump shaft, the outer round surface of eccentric wheel contacts with the wearing piece of diaphragm of rubber, the suction air cavity that diaphragm of rubber constitutes also is provided with outlet valve, the main body of their mutual group cost strong self-suction devices, need sensors configured in the sucking pipe that main body links to each other with pump case, thereby form the automatic control system of this device by the action of sensor solenoidoperated cluthes.The beneficial effects of the utility model are: the parts that package unit adopts are less, simple structure, therefore cheap for manufacturing cost, pump shaft is outer to be connected with pump case though it is installed on, but have a style of one's own, strong self-priming of self-fulfillment and automatic control task are not subjected to the influence of pump human subject internal operation state, so manual dexterity, working stability.

Description of drawings

Illustrated with reference to the accompanying drawings below, as shown be the theory structure sketch of the self-controlled type strong self-suction device that applies to magna pump, the clutch that is used for control automatically among the figure is representative with the electromagnetic clutch.Figure cathetus arrow indication is a gas flow direction, and the curve arrow indication is the sense of rotation of axle, and four-headed arrow is represented the vibration-direction of diaphragm of rubber.1-suction air cavity, 2-device box, 3-diaphragm of rubber, 4-outlet valve, 5-wearing piece, 6-eccentric wheel, 7-clutch, 8-sucking pipe, 9-sensor, 10-pump case, 11-pump shaft, 12-pump work chamber.

Embodiment:

When this device is installed, utilize screw, rivet or other Placement to be fixed on pump shaft 11 pump case 10 outward device box 2, clutch 7 configuration eccentric wheels 6 are set on pump shaft 11 prolonged sections, suitable position at pump work chamber 12 outer walls bores an aperture again, pumping chamber or suction chamber can be selected in this position, also can select intake pipe or outlet pipe etc. to locate, but must communicate with pump work chamber 12.When starting electrical machinery drives pump shaft 11 rotations, drive is set in the also rotation together of relevant parts of the clutch 7 on the pump shaft, the eccentric wheel 6 that is disposed on the clutch is also followed rotation, because the outer round surface of eccentric wheel 6 contacts with the wearing piece 5 of diaphragm of rubber 3, must drive diaphragm of rubber 3 and do reciprocating linear motion, as seen from the figure, when diaphragm of rubber 3 moves downward, the volume of suction air cavity 1 increases, and intracavity gas pressure reduces, and at this moment sucking pipe 8 is air-breathing from pump work chamber 12; When diaphragm of rubber 3 moves upward, from outlet valve 4 exhausts.Diaphragm of rubber 3 reciprocating frequency are directly related with the rotational speed of pump shaft 11, if use the level Four AC motor to drive, the rotating speed that pump shaft 11 drives eccentric wheel 6 is 1470r/min, so, the vibration frequency of diaphragm of rubber will be 1470r/min, the air-breathing and exhaust of high frequency through repeated multiple times makes pump work chamber 12 internal pressures more and more littler.After pump work chamber 12 forms relative vacuum, must make and be sucked flowing medium effect is flowed into by barometric pressure, medium not only flows in active chamber, also flow to the less relatively sucking pipe 8 of pressure, when touching sensor 9, the medium that flows to sucking pipe 8 must spread out of corresponding signal, if use electromagnetic clutch can spread out of electrical signal,, decide according to actual conditions if use hydraulic clutch then spread out of pressure signal.Electrical signal sends clutch to by circuit and special electrical equipment control mechanism, pressure signal then directly sends clutch 7 to by sucking pipe 8, after clutch 7 receives corresponding signal, cause corresponding actions, the eccentric wheel 6 that is disposed on the clutch is broken away from, no longer follow pump shaft 11 rotations, thereby finish the task of air-breathing diversion, enter stand-by state.

Claims

1. self-controlled type strong self-suction device that applies to magna pump, put into the driving mechanism of strong self-priming in this device box outside being installed on pump shaft, driving mechanism is by clutch, composition such as eccentric wheel and wearing piece, casing is outer to be the main suction air cavity that constitutes with the diaphragm of rubber, link to each other with pump case by sucking pipe again and enter the pump work chamber, it is characterized in that: this device box is installed on outside the pump shaft prolonged section and is connected with pump case, clutch configuration eccentric wheel is set on the pump shaft, the outer round surface of eccentric wheel contacts with the wearing piece of diaphragm of rubber, the suction air cavity that diaphragm of rubber constitutes also is provided with outlet valve, the main body of their mutual group cost strong self-suction devices.

2. require 1 described a kind of self-controlled type strong self-suction device that applies to magna pump according to patent, it is characterized in that: sensors configured in the sucking pipe that the main body of this strong self-suction device links to each other with pump case, thus form the automatic control system of this device by the action of sensor solenoidoperated cluthes.