CN208311064U - Improve the peripheral pump of dustproof construction - Google Patents

Abstract

The utility model relates to a kind of peripheral pumps for improving dustproof construction, dust of the existing technology is solved to be easily accessible bearing and damage bearing, the problems such as electrical machinery life is influenced even into motor, the scheme of use are as follows: oil sealing chamber is set on the connector, the oil sealing chamber is bonded the bearing bore, and it is located at the outer end of the bearing bore, the intracavitary setting outside framework oil seal of oil sealing, the outside framework oil seal includes framework ring, rubber ring on framework ring is set, gasket ring on rubber ring is set, the gasket ring is modified Teflon, the gasket ring and the shaft cooperate, for preventing impurity from entering the bearing and the motor cavity.Its effect: using the outside framework oil seal for improving structure, coefficient of friction is low, and has excellent self-lubrication and rub resistance, can not only play good leakproofness, but also do not grind axis, electric motor starting torque can also be effectively reduced.

Description

Improve the peripheral pump of dustproof construction

Technical field

The utility model relates to a kind of peripheral pump more particularly to a kind of peripheral pumps for improving dustproof construction.

Background technique

Peripheral pump is small in size, light-weight, compact-sized, and installation is simple and convenient, is a kind of energy-efficient, hygienic, safe Electric pump, be suitable for gard watering, pipeline supercharging, well water lift, water tower water-feeding pressurization, tap water pressurization, green house of vegetables watering and The occasions such as aquaculture plumbing.But with the development of industry, atmospheric environment is severe, and dust increases, and gets over to the requirement of shelter of electric pump Come higher.Also increase some dustproof constructions at present, nonetheless, as bearing still easily enter dust, dust even across Bearing enters in motor cavity.Dust enters bearing then, and bearing noise increases when vortex pump work.Dust enters motor cavity It is interior, it is easy that stator, rotor etc. is made to break down, it is final to influence the electric pump service life.

Summary of the invention

A kind of improvement dustproof construction is provided utility model aims to solve the above problem of the existing technology Peripheral pump, using the outside framework oil seal for improving structure, since the major part that cooperates with shaft is modified Teflon material Gasket ring, coefficient of friction is low, but have excellent self-lubrication and rub resistance, can both play good sealing Property, and axis is not ground, electric motor starting torque can also be effectively reduced, prevent peripheral pump difficulty in starting, to reduce design of electrical motor hardly possible Degree reduces power input to machine, is conducive to power saving, energy-saving and emission-reduction.

What the above-mentioned technical purpose of the utility model mainly solved by the following technical programs: improving the rotation of dustproof construction Whirlpool pumps, including the pump housing, motor, the connector being connected between the pump housing and motor, and the shaft on the motor passes through the connection Part enters pump chamber, and bearing is arranged for closing motor cavity, the motor side in the motor side that the connector and the motor cooperate Chamber, the inner end of the bearing bore and the motor cavity cooperate, and bearing are arranged in the bearing bore, it is characterised in that the connector Upper setting oil sealing chamber, the oil sealing chamber is bonded the bearing bore, and is located at the outer end of the bearing bore, the intracavitary setting of oil sealing Outside framework oil seal, the outside framework oil seal include framework ring, and the rubber ring on framework ring is arranged in, and the gasket on rubber ring is arranged in Ring, the gasket ring are modified Teflon, and the gasket ring and the shaft cooperate, for preventing impurity from entering institute State bearing and the motor cavity.

Currently, the dustproof construction that setting (it is intracavitary to be generally arranged at oil sealing) on the outside of bearing is usually rubber seal, rubber The elasticity and toughness of glue sealing ring are easy time passage at any time or long using the time, are easy to produce fatigue and weaken, influence to make Leakproofness for shaft.When dustproof construction be spring skeleton oil sealing when, spring skeleton oil sealing is close to axle journal for a long time, with axle journal it Between formed dry grinding, cause journal wear phenomenon.The sealing performance of mesh first two technical solution is all not very good.The technical program uses The outside framework oil seal for improving structure cooperates modified Teflon (PTFE) and shaft on outside framework oil seal, due to modification poly- four The rubbing to examine of vinyl fluoride (PTFE) greatly reduces for two schemes of coefficient compared with the existing technology, and has excellent Self-lubrication and rub resistance can not only play good leakproofness, but also not grind axis.

This has the outside framework oil seal for improving structure, and dust can be effectively prevented by bearing hole and enter bearing and motor, influences Bearing and electrical machinery life.The coefficient of friction of modified ptfe it is very low (in the case of dry friction: rubber friction coefficient be 0.6-0.9, poly- four Vinyl fluoride coefficient of friction is 0.04-0.12), for peripheral pump miniature for small-power, starting torque can be effectively reduced, prevent Peripheral pump difficulty in starting, to reduce design of electrical motor difficulty.

Meanwhile motor noise is effectively reduced by the sealing of this road of outside framework oil seal (reduces dust and enter and make an uproar caused by bearing Sound, the noise for reducing outside framework oil seal and shaft cooperation generation).

In addition, being shown by the first Experimental comparison: only needing work using the existing peripheral pump for having filled common outside framework oil seal Make 27 minutes, the temperature of outside framework oil seal room is just raised to 40 ° from 20 °.And the peripheral pump of the outside framework oil seal of the technical program is filled then Need work 40 minutes, the temperature of outside framework oil seal room is just raised to 40 ° from 20 °, and temperature rise speed significantly slows, and is conducive to effective protection Motor prevents motor from quickly overheating.It is shown by the first Experimental comparison: under identical output power, having filled common outside framework oil seal Peripheral pump power input to machine be 1422W.The power input to machine of the peripheral pump of the outside framework oil seal of the technical program is filled For 1333W.Power input to machine is reduced to 1333W by 1422W, reduces 6.68%, is conducive to power saving, energy-saving and emission-reduction.

As further improving and supplementing to above-mentioned technical proposal, the utility model uses following technical measures: described There is radial wall, first axis wall and the second axial walls, the inner ring edge of the first axis wall and the radial wall on rubber ring For the outer ring of cooperation, second axial walls and the radial wall along cooperating, the radial wall is bonded the outer wall of the bearing, described First axis wall and the gasket ring cooperate, and the radial ring wall of second axial walls and oil sealing chamber cooperates.Radial wall and axis The outer wall fitting held, is on the one hand conducive to further dust-proof, still further aspect, is also beneficial to carry out outside framework oil seal by bearing Positioning.

The first axis wall from outside inside successively include gasket ring fixed part, concave part and sealed lip, it is described close Packing ring fixed part and the shaft clearance fit, the concave part and the shaft interval cooperate, the top of the sealed lip Portion and the shaft are closely fitted.On the one hand the setting of concave part facilitates to form sealed lip, while sealed lip can be made to have again There is certain intensity, but also can be reduced the contact area of first axis wall and shaft, reduces friction.

Bulge loop, the surface of the bulge loop and the gasket ring are set on the outer wall of the outer end of the gasket ring fixed part The smooth transition of fixed part outer wall.Bulge loop, which advantageously forms, continues radial enclasping force, forms gasket ring and bearing persistently effectively Cooperation.

The first axis wall and the setting of the second axial walls interval, the axial section of the framework ring are L shape, the skeleton The shoulder of ring and foot are fitted in the inner surface of second axial walls and radial wall respectively.

In order to facilitate production and processing, also for the use reliability for ensuring outside framework oil seal, the framework ring, rubber ring and close Packing annular is into a single integrated structure.

The utility model has the advantages that 1, using the outside framework oil seal for improving structure, due to the master cooperated with shaft Mian part is divided into the gasket ring of modified Teflon material, and coefficient of friction is low, and has excellent self-lubrication and antifriction Wiping property, can not only play good leakproofness, but also do not grind axis, electric motor starting torque can also be effectively reduced, and prevent peripheral pump from opening Dynamic difficulty reduces power input to machine, is conducive to power saving, energy-saving and emission-reduction to reduce design of electrical motor difficulty.2, concave part is set It sets and on the one hand facilitates to form sealed lip, while can make sealed lip that there is certain intensity again, but also can be reduced first axle To the contact area of wall and shaft, friction is reduced.3, bulge loop, which advantageously forms, continues radial enclasping force, makes gasket ring and bearing It is lasting to form effectively cooperation.

Detailed description of the invention

Fig. 1 is a kind of partial structural diagram of cross-sectional view of the utility model.

Fig. 2 is the structural schematic diagram of the utility model middle skeleton oil sealing.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.

Embodiment: as depicted in figs. 1 and 2, the peripheral pump of dustproof construction, including the pump housing 1, motor 2 is improved, the pump housing is connected to Connector 3 between motor, the shaft 4 on the motor pass through the connector and enter pump chamber, the connector with it is described Bearing bore, the inner end of the bearing bore and the electricity is arranged for closing motor cavity, the motor side in the motor side of motor cooperation Machine cavity cooperation, the bearing bore is interior to be arranged bearing 5.Oil sealing chamber is set on the connector 3, and the oil sealing chamber is bonded the bearing Chamber, and it is located at the outer end of the bearing bore, the intracavitary setting outside framework oil seal 6 of oil sealing, the outside framework oil seal includes framework ring 61, It includes 621,622 and 623) that rubber ring 62(on framework ring, which is arranged in, and the gasket ring 63 on rubber ring is arranged in, described close Packing ring is modified Teflon, and the gasket ring and the shaft cooperate, for prevent impurity enter the bearing and The motor cavity.

Currently, the dustproof construction that setting (it is intracavitary to be generally arranged at oil sealing) on the outside of bearing is usually rubber seal, rubber The elasticity and toughness of glue sealing ring are easy time passage at any time or long using the time, are easy to produce fatigue and weaken, influence to make Leakproofness for shaft.When dustproof construction be spring skeleton oil sealing when, spring skeleton oil sealing is close to axle journal for a long time, with axle journal it Between formed dry grinding, cause journal wear phenomenon.The sealing performance of mesh first two technical solution is all not very good.The technical program uses The outside framework oil seal for improving structure cooperates modified Teflon (PTFE) and shaft on outside framework oil seal, due to modification poly- four The rubbing to examine of vinyl fluoride (PTFE) greatly reduces for two schemes of coefficient compared with the existing technology, and has excellent Self-lubrication and rub resistance can not only play good leakproofness, but also not grind axis.

This has the outside framework oil seal for improving structure, and dust can be effectively prevented by bearing hole and enter bearing and motor, influences Bearing and electrical machinery life.The coefficient of friction of modified ptfe it is very low (in the case of dry friction: rubber friction coefficient be 0.6-0.9, poly- four Vinyl fluoride coefficient of friction is 0.04-0.12), for peripheral pump miniature for small-power, starting torque can be effectively reduced, prevent Peripheral pump difficulty in starting, to reduce design of electrical motor difficulty.

Meanwhile motor noise is effectively reduced by the sealing of this road of outside framework oil seal (reduces dust and enter and make an uproar caused by bearing Sound, the noise for reducing outside framework oil seal and shaft cooperation generation).

In addition, being shown by the first Experimental comparison: only needing work using the existing peripheral pump for having filled common outside framework oil seal Make 27 minutes, the temperature of outside framework oil seal room is just raised to 40 ° from 20 °.And the peripheral pump of the outside framework oil seal of the technical program is filled then Need work 40 minutes, the temperature of outside framework oil seal room is just raised to 40 ° from 20 °, and temperature rise speed significantly slows, and is conducive to effective protection Motor prevents motor from quickly overheating.It is shown by the first Experimental comparison: under identical output power, having filled common outside framework oil seal Peripheral pump power input to machine be 1422W.The power input to machine of the peripheral pump of the outside framework oil seal of the technical program is filled For 1333W.Power input to machine is reduced to 1333W by 1422W, reduces 6.68%, is conducive to power saving, energy-saving and emission-reduction.

There is radial wall 623, first axis wall 621 and the second axial walls 622, the first axis on the rubber ring 62 The inner ring of wall and the radial wall is along cooperating, and the outer ring edge of second axial walls and the radial wall cooperates, the radial wall It is bonded the outer wall of the bearing, the first axis wall and the gasket ring cooperate, second axial walls and oil sealing chamber Radial ring wall cooperation.Radial wall is bonded with the outer wall of bearing, is on the one hand conducive to further dust-proof, still further aspect, also favorably In being positioned by bearing to outside framework oil seal.

The first axis wall is from outside inside successively including gasket ring fixed part 621-1, concave part 621-2 and sealing lip Portion 621-3, the gasket ring fixed part and the shaft clearance fit, the concave part and the shaft interval cooperate, institute The top and the shaft for stating sealed lip are closely fitted.On the one hand the setting of concave part facilitates to form sealed lip, while again It can make sealed lip that there is certain intensity, but also can be reduced the contact area of first axis wall and shaft, reduce friction.

On the outer wall of the outer end of the gasket ring fixed part be arranged bulge loop 621-4, the surface of the bulge loop with it is described close The smooth transition of packing ring fixed part outer wall.Bulge loop, which advantageously forms, continues radial enclasping force, and gasket ring and bearing is made to continue shape At effective cooperation.

The first axis wall and the setting of the second axial walls interval, the axial section of the framework ring are L shape, the skeleton The shoulder of ring and foot are fitted in the inner surface of second axial walls and radial wall respectively.

In order to facilitate production and processing, also for the use reliability for ensuring outside framework oil seal, the framework ring, rubber ring and close Packing annular is into a single integrated structure.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model.Above-mentioned In embodiment, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, made Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this utility model.

Claims (6)

1. improving the peripheral pump of dustproof construction, including the pump housing, motor, the connector being connected between the pump housing and motor, the electricity Shaft on machine passes through the connector and enters pump chamber, and the motor side that the connector and the motor cooperate is for closing motor Bearing bore is arranged in chamber, the motor side, and the inner end of the bearing bore and the motor cavity cooperate, and axis is arranged in the bearing bore It holds, it is characterised in that oil sealing chamber is set on the connector, and the oil sealing chamber is bonded the bearing bore, and is located at the bearing bore Outer end, the intracavitary setting outside framework oil seal of oil sealing, the outside framework oil seal includes framework ring, and the rubber on framework ring is arranged in Ring, is arranged in the gasket ring on rubber ring, and the gasket ring is modified Teflon, the gasket ring with described turn Axis cooperation, for preventing impurity from entering the bearing and the motor cavity.

2. the peripheral pump according to claim 1 for improving dustproof construction, it is characterised in that have on the rubber ring radial For the inner ring of wall, first axis wall and the second axial walls, the first axis wall and the radial wall along cooperating, described second is axial For the outer ring of wall and the radial wall along cooperating, the radial wall is bonded the outer wall of the bearing, the first axis wall with it is described The radial ring wall of gasket ring cooperation, second axial walls and oil sealing chamber cooperates.

3. the peripheral pump according to claim 2 for improving dustproof construction, it is characterised in that the first axis wall is from outer past It inside successively include gasket ring fixed part, concave part and sealed lip, the gasket ring fixed part is matched with the shaft gap It closes, the concave part and the shaft interval cooperate, and the top of the sealed lip and the shaft are closely fitted.

4. the peripheral pump according to claim 3 for improving dustproof construction, it is characterised in that the gasket ring fixed part Bulge loop is set on the outer wall of outer end, and the surface of the bulge loop and the gasket ring fixed part outer wall seamlessly transit.

5. improving the peripheral pump of dustproof construction according to Claims 2 or 3 or 4, it is characterised in that the first axis wall It is arranged with the second axial walls interval, the axial section of the framework ring is L shape, and the shoulder of the framework ring and foot are bonded respectively In the inner surface of second axial walls and radial wall.

6. the peripheral pump according to claim 5 for improving dustproof construction, it is characterised in that the framework ring, rubber ring and close Packing annular is into a single integrated structure.