CN201236813Y - Easily detachable vertical strong self-suction pump - Google Patents

Abstract

The utility model relates to a detachable vertical type strong self-sucking pump, which belongs to conveying equipment for water supply, draining, fire fighting and the like in industies and cities. The detachable vertical type strong self-sucking pump is characterized in that a shaft sleeve is sleeved on a pump shaft; a packing gland, an end ring and sludgy sealing packing are arranged on the shaft sleeve; an impeller is mounted on the pump shaft and fixed by an impeller nut, a pump cover is mounted on the sludgy sealing packing and the shaft sleeve; a pump body is connected with the pump cover; a sealing ring is arranged between the pump body and the impeller; a bearing body is connected with the pump cover; an oil seal, a bearing and a bearing gland are mounted between the pump shaft and the bearing body; the bearing gland is fixed on the bearing body; the pump shaft is connected with a motor through a coupling; a motor support is mounted on the pump cover, the motor is mounted on the motor support, a transition support is mounted on the motor, a motor shaft is provided with a fixing gear, an eccentric shaft is provided with a crankshaft, the eccentric shaft is mounted on the transition support, and a sliding gear is mounted on the eccentric shaft; a suction and discharge device is mounted on the transition support and connected with the crankshaft through a connecting rod; a suction chamber body is arranged on the pump body; and a gas-liquid seperating device mounted on the suction chamber body is connected with the suction and discharge device though a pipe. The utility model has the advantages of strong self-sucking capacity, convenient maintenance and long service life.

Description

Easily dismantled strong vertical self-priming pump

Technical field: the invention is to be used for conveying equipments such as industry and city water, draining, fire-fighting.

Background technique: this pump is a collection detachable type Piping Centrifugal Pumps and the combining of forced self suction centrifugal pump, and the detachable type Piping Centrifugal Pumps that is adopted does not before possess suction capacity, and the self-priming centrifugal pump that is adopted is inconvenient to safeguard; The pump of the mechanical seal of when industry and city water, draining, fire-fighting and agricultural drainage and irrigation or conveying have the sewage of certain solid particle or sump oil, installing, because of mechanical seal is having easy to wear leakage the under crystallization, the harsh conditions such as impure, be difficult to working life guarantee, and the common fillers sealing can not guarantee not have the operation of leakage, and safeguard that change filler bothers very much, increased working strength of workers, using effect neither be very desirable.

Summary of the invention: the purpose of the invention provides a kind of easily dismantled strong vertical self-priming pump that self-suction by force, is just torn structure, easy to maintenance, long service life open that has; The purpose of the invention is achieved through the following technical solutions: easily dismantled strong vertical self-priming pump is characterized in that being made up of the pump housing, impeller nut, seal ring, impeller, pump cover, axle sleeve, the stuffing box packing of mud shape, end ring, Gland, bearing support, pump shaft, oil sealing, bearing, bearing gland, shaft coupling, electric machine support, suction-chamber's body, gas-liquid separation device, transition bracket, fixed gear, sliding gear, connecting rod, crank, eccentric shaft, suction-exhaust device; Axle sleeve is contained on the pump shaft, with Gland, end ring, the stuffing box packing of mud shape is contained on the axle sleeve, impeller is contained on the pump shaft and with impeller nut fixes, pump cover is contained in the stuffing box packing of mud shape, the outside of axle sleeve, the pump housing is connected with pump cover, between the pump housing and impeller, adorn seal ring, the bearing support cover is connected with pump cover, oil sealing between pump shaft and bearing support, bearing, bearing gland, bearing gland are fixed on the bearing support, and pump shaft is connected with motor shaft through shaft coupling, the electric machine support lower end is contained on the pump cover, motor is contained on the electric machine support, and transition bracket is sleeved on the motor, and the motor shaft upper end sets gear, crank is contained on the eccentric shaft, eccentric shaft is contained on the transition bracket, with sliding gear be contained in the eccentric shaft lower end and with fixed gear engagement, suction-exhaust device is contained on the transition bracket, be connected with crank through connecting rod, suction-chamber's body is contained on the pump housing, adorns gas-liquid separation device on suction-chamber's body, suction-exhaust device, gas-liquid separation device is communicated with pipe.

The advantage of the invention: thereby owing to adopted suction-exhaust device, gas-liquid separation device to possess suction capacity; Owing to adopted self-priming apparatus, make liquid level to being in the near vacuum state between the impeller all the time, reduced the cavitation damage of pavilion wheel, reduced and overhauled maintenance, thereby prolonged the working life of pump; The employing of innovation just tear structure open, special convenient for maintaining.

Description of drawings:

Fig. 1 is the easily dismantled strong vertical self-priming pump structural representation.

Among the figure: 1, the pump housing 2, impeller nut 3, seal ring 4, impeller 5, pump cover 6, axle sleeve 7, mud shape stuffing box packing 8, Gland 9, bearing support 10, pump shaft 11, oil sealing 12, bearing 13, bearing gland 14, shaft coupling 15, electric machine support 16, suction-chamber's body 17, gas-liquid separation device 18, fixed gear 19, sliding gear 20, connecting rod 21, crank 22, eccentric shaft 23, suction-exhaust device 24, end ring 25, transition bracket

Embodiment: easily dismantled strong vertical self-priming pump is characterized in that being made up of the pump housing, impeller nut, seal ring, impeller, pump cover, axle sleeve, the stuffing box packing of mud shape, end ring, Gland, bearing support, pump shaft, oil sealing, bearing, bearing gland, shaft coupling, electric machine support, suction-chamber's body, gas-liquid separation device, transition bracket, fixed gear, sliding gear, connecting rod, crank, eccentric shaft, suction-exhaust device; Axle sleeve is contained on the pump shaft, with Gland, end ring, the stuffing box packing of mud shape is contained on the axle sleeve, impeller is contained on the pump shaft and with impeller nut fixes, pump cover is contained in the stuffing box packing of mud shape, the outside of axle sleeve, the pump housing is connected with pump cover, between the pump housing and impeller, adorn seal ring, the bearing support cover is connected with pump cover, oil sealing between pump shaft and bearing support, bearing, bearing gland, bearing gland are fixed on the bearing support, and pump shaft is connected with motor shaft through shaft coupling, the electric machine support lower end is contained on the pump cover, motor is contained on the electric machine support, and transition bracket is sleeved on the motor, and the motor shaft upper end sets gear, crank is contained on the eccentric shaft, eccentric shaft is contained on the transition bracket, with sliding gear be contained in the eccentric shaft lower end and with fixed gear engagement, suction-exhaust device is contained on the transition bracket, be connected with crank through connecting rod, suction-chamber's body is contained on the pump housing, adorns gas-liquid separation device on suction-chamber's body, suction-exhaust device, gas-liquid separation device is communicated with pipe.

This pump structure is the improvement to traditional pipe type centrifugal pump, this pump increased electric machine support height and with the pump housing design that is integrated, pump shaft and motor shaft are by lengthening shaft coupling rigid joint, parent and have an independently bearing support, solved original deficiency by the motor shaft supporting, and because shaft coupling is an elongate structure, so whole rotor part can greatly facilitate maintenance, maintenance by all taking out in the middle of housing and the motor; Motor is two ends shaft extension structures, and an end is that common shaft extension connects with pump shaft by the lengthening shaft coupling, and an end is that elongated shaft expansion connects with the eccentric shaft of suction-exhaust device by gear.On the basis of easy-to-dismount type riser pump, install a suction-exhaust device that links to each other with eccentric shaft by crank, connecting rod additional, make pump have suction capacity again.Suction-exhaust device is contained in the top of motor, and the elongated shaft expansion on motor top sets gear, adorns sliding gear on the eccentric shaft, by the clutch of two gears cross expire control suction-exhaust device work with stop.Eccentric shaft is converted into the rotation of axle by crank and connecting rod the to-and-fro motion of suction-exhaust device.Suction-exhaust device is a prior art, and essence is one by loam cake, lower cover, barrier film and three groups of simple and easy diaphragm pumps that the non-return valve block is formed, and reciprocatingly under the pulling of touching at connecting rod makes the volume circulation change of epicoele, cavity of resorption and reaches the purpose of suction and discharge.The clutch of fixed gear and sliding gear realizes by handle or group transmission of inserting.Gas-liquid separation device is a kind of float-ball type bleed valve, ball falls valve and opens when air-breathing, after the air-breathing liquid that finishes is full of,, thereby has avoided sucked liquid to enter suction-exhaust device and cause the pollution of suction-exhaust device to damage because the buoyancy of liquid effect rises ball float and valve cuts out.

Pump work process: before the pump startup, sliding gear and fixed gear are closed, primer pump, the gas in the pump suction pipe road is discharged in suction-exhaust device work, and comment entry is full of the pump housing after the gas emptying, and ball floats closes the gas-liquid separation device valve, impeller work, pump discharge makes sliding gear separate with fixed gear after crossing usage requirement, and suction-exhaust device quits work, and pump begins to run well.

The advantage of easily dismantled strong vertical self-priming pump: need not pour water when 1, starting, without vavuum pump, Without bottom valve, pump self can absorb water in exhaust; 2, self-priming time is short, and suction capacity is strong; 3, Adopt air intake and exhaust system, gas-liquid separation device, make liquid level approximate true to being in all the time between the impeller Dummy status reduces the cavitation damage of impeller, has improved the efficient of pump; 4, inhaling vacuum plant can To realize clutch, to reach the purpose that increases the service life with energy savings; 5, whole pump adopted With just tearing structure open, need not dismantle electricity during the consumable accessorys such as the bearing of replacing pump, mechanical seal, impeller Machine; 6, the muddy packing sealing is adopted in sealing, and do not need to shut down and change packing, thereby this pump tool Smooth running, long service life are arranged, and maintaining is advantage very easily; 7, pump is in operation In even if " dehydration " phenomenon occurs and also can at any time reach " runback of cutting off the water supply " by inhaling vacuum plant Effect.

Claims (1)

1, easily dismantled strong vertical self-priming pump is characterized in that being made up of the pump housing, impeller nut, seal ring, impeller, pump cover, axle sleeve, the stuffing box packing of mud shape, end ring, Gland, bearing support, pump shaft, oil sealing, bearing, bearing gland, shaft coupling, electric machine support, suction-chamber's body, gas-liquid separation device, transition bracket, fixed gear, sliding gear, connecting rod, crank, eccentric shaft, suction-exhaust device; Axle sleeve is contained on the pump shaft, with Gland, end ring, the stuffing box packing of mud shape is contained on the axle sleeve, impeller is contained on the pump shaft and with impeller nut fixes, pump cover is contained in the stuffing box packing of mud shape, the outside of axle sleeve, the pump housing is connected with pump cover, between the pump housing and impeller, adorn seal ring, the bearing support cover is connected with pump cover, oil sealing between pump shaft and bearing support, bearing, bearing gland, bearing gland are fixed on the bearing support, and pump shaft is connected with motor shaft through shaft coupling, the electric machine support lower end is contained on the pump cover, motor is contained on the electric machine support, and transition bracket is sleeved on the motor, and the motor shaft upper end sets gear, crank is contained on the eccentric shaft, eccentric shaft is contained on the transition bracket, with sliding gear be contained in the eccentric shaft lower end and with fixed gear engagement, suction-exhaust device is contained on the transition bracket, be connected with crank through connecting rod, suction-chamber's body is contained on the pump housing, adorns gas-liquid separation device on suction-chamber's body, suction-exhaust device, gas-liquid separation device is communicated with pipe.

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