CN204205757U

CN204205757U - The electric machine iron core of RO pump

Info

Publication number: CN204205757U
Application number: CN201420710773.4U
Authority: CN
Inventors: 徐华杰; 章志钢
Original assignee: NINGBO RUNZE ELECTRIC Co Ltd
Current assignee: NINGBO RUNZE ELECTRIC Co Ltd
Priority date: 2014-11-24
Filing date: 2014-11-24
Publication date: 2015-03-11
Anticipated expiration: 2024-11-24

Abstract

The utility model discloses a kind of electric machine iron core of RO pump, comprise iron core body, iron core body comprises some rotor punchings, some rotor punchings are all coaxially arranged, equal close contact between some rotor punchings, iron core body offers axle mouth in the axial direction, some rotor punchings all offer some first through holes, some first through hole even circumferential distributions, some fixed levers are equipped with in described some first through holes, iron core body both sides are all coaxially arranged with elasticity compacting device, elasticity compacting device offers some second through holes coordinated with some fixed levers, when the utility model can cool after-contraction to rotor punching expanded by heating, promote the mutual extruding between some rotor punchings, avoid occurring gap between some rotor punchings.

Description

The electric machine iron core of RO pump

Technical field

The utility model relates to RO pump field, relates to a kind of electric machine iron core of RO pump in particular.

Background technology

Motor (English: Electric machinery, is commonly called as " motor ") refers to a kind of calutron realizing electric energy conversion according to the law of electromagnetic induction or transmit.In circuit with alphabetical M(old plant D) represent.Its Main Function produces driving torque, as the power source of electrical appliance or various machinery.

Motor generally includes rotor, stator and shell, and rotor comprises armature spindle and iron core, and iron core is wound with coil, the iron core sleeve being wound with coil is located on armature spindle and just forms rotor.

Existing market upper core is made up of some rotor punchings usually, and some rotor punchings are arranged with one heart, and some rotor punchings are wound around and are fixed together by coil.

Motor at work, whole machine produces a large amount of heat, epitrochanterian some rotor punchings and coil are by expanded by heating, some rotor punchings are arranged on fixed position when installing, and the axis along armature spindle is produced expansion by rotor punching after being heated, when motor quits work, rotor punching is lowered the temperature and shrinks, but the rotor punching after expanding is difficult to return back to former installation site when shrinking, cause between adjacent two rotor punchings and produce gap, the gap between the some rotor punchings particularly outside corresponding iron core is more obvious;

When motor starts work again, some rotor punchings are not owing to fitting tightly, rotor punching can be there is when rotor turns and produce vibration, and the rotation affecting rotor is smooth and easy, if things go on like this fixed part firmly rotor punching may occur when high speed rotating bending and cannot use, cause motor to be scrapped.

Utility model content

For the deficiencies in the prior art, the utility model provide one can to rotor punching expanded by heating cooling after-contraction time, promote the mutual extruding between some rotor punchings, avoid the electric machine iron core of the RO pump occurring gap between some rotor punchings.

For achieving the above object, the utility model provides following technical scheme: comprise iron core body, iron core body comprises some rotor punchings, some rotor punchings are all coaxially arranged, equal close contact between some rotor punchings, iron core body offers axle mouth in the axial direction, some rotor punchings all offer some first through holes, some first through hole even circumferential distributions, some fixed levers are equipped with in described some first through holes, iron core body both sides are all coaxially arranged with elasticity compacting device, elasticity compacting device offers some second through holes coordinated with some fixed levers.

By adopting technique scheme, during installation, the first through hole of some rotor punchings passed fixed lever successively and compress, second through hole of elasticity compacting device is set on fixed lever also fixing, motor operationally produces a large amount of heat, some rotor punchings of iron core body are all heated and expand vertically, iron core body axial length increases, extruding elasticity compacting device, after motor quits work, temperature in motor declines gradually, rotor punching temperature reduce time, rotor punching will shrink, shrinking then makes iron core body axial length reduce, gap is produced between some rotor punchings, now be arranged on the elasticity compacting device work of iron core body both sides, the rotor punching of extruding iron core body both sides, rotor punching is made to return to original position, gap between some rotor punchings is supplemented, avoid the generation deformation of iron core body and affect reusing, and then protect the safe handling of whole motor.

The utility model is set to further: elasticity compacting device comprise holding ring and with some elastic arms, the stiff end that elastic arm comprises free end and is fixedly connected with holding ring, the free end of some elastic arms stretches out holding ring in the axial direction, and the free end of elastic arm abuts with the outermost rotor punching of iron core body.

By adopting technique scheme, during machine operation, some rotor punchings are heated and expand, extrude the elastic arm abutted with it, after motor quits work, rotor punching is lowered the temperature and is shunk, elastic arm trend restores to the original state, then the rotor punching of elastic arm extruding iron core body both sides, makes all rotor punchings of iron core body all set back, prevents gap.

The utility model is set to further: some elastic arm even circumferentials are distributed in outside holding ring, some elastic arms and holding ring one-body molded.

By adopting technique scheme, some elastic arm even circumferentials are distributed in outside holding ring, make it to rotor punching uniform force, are conducive to the motion that sets back of rotor punching, some elastic arms and holding ring one-body molded, ensure being connected firmly of elastic arm and holding ring.

The utility model is set to further: the free end of elastic arm offers screw, is equipped with tensile bolts in screw.

By adopting technique scheme, tensile bolts on elastic arm then abuts with rotor punching, tensile bolts is by transferring the length changing its elasticity of extension arm in screw inward turning simultaneously, thus change the deformation of elastic arm, and change the elastic force of elastic arm, and the pre-clamping to iron core body can be carried out by adjustment of tonicity bolt when mounted.

The utility model is set to further: holding ring and elastic arm are made by spring steel.

By adopting technique scheme, spring steel should have excellent combination property, spring steel has excellent metallurgical quality (high clarity and uniformity), good surface quality (strict control surface defect and decarburization), accurate profile and size, more safe and reliable during use.

Compared with prior art, when the electric machine iron core of the utility model RO pump can cool after-contraction to rotor punching expanded by heating, promote the mutual extruding between some rotor punchings, avoid occurring gap between some rotor punchings.

Accompanying drawing explanation

Fig. 1 is the three-dimensional structure diagram of the utility model RO pump;

Fig. 2 is the front view of the utility model iron core body;

Fig. 3 is the three-dimensional structure diagram of the utility model elasticity compacting device;

Fig. 4 is the front view of the utility model elasticity compacting device;

Fig. 5 is the schematic diagram of the utility model rotor punching.

Reference numeral: 1, elasticity compacting device; 11, holding ring; 113, the second through hole; 12, elastic arm; 121, tensile bolts; 2, iron core body; 21, rotor punching; 211, the first through hole; 6, motor.

Embodiment

Referring to figs. 1 through Fig. 5, the embodiment of the electric machine iron core of the utility model RO pump is described further.

A kind of electric machine iron core of RO pump, comprise iron core body 2, iron core body 2 comprises some rotor punchings 21, some rotor punchings 21 are all coaxially arranged, equal close contact between some rotor punchings 21, iron core body 2 offers axle mouth in the axial direction, some rotor punchings 21 all offer some first through holes 211, some first through hole 211 even circumferential distributions, some fixed levers are equipped with in described some first through holes 211, iron core body 2 both sides are all coaxially arranged with elasticity compacting device 1, elasticity compacting device 1 offers some second through holes 113 coordinated with some fixed levers, preferred first through hole 211 of the present embodiment, fixed lever and the second through hole 113 are provided with 3,

During installation, the first through hole 211 of some rotor punchings 21 passed fixed lever successively and compress, second through hole 113 of elasticity compacting device 1 is set on fixed lever also fixing, motor 6 operationally produces a large amount of heat, some rotor punchings 21 of iron core body 2 are all heated and expand vertically, iron core body 2 axial length increases, extruding elasticity compacting device 1, after motor 6 quits work, temperature in motor 6 declines gradually, rotor punching 21 temperature reduce time, rotor punching 21 will shrink, shrinking then makes iron core body 2 axial length reduce, gap is produced between some rotor punchings 21, the elasticity compacting device 1 being now arranged on iron core body 2 both sides works, the rotor punching 21 of extruding iron core body 2 both sides, rotor punching 21 is made to return to original position, gap between some rotor punchings 21 is supplemented, avoid iron core body 2 that deformation occurs and affect reusing, and then protect the safe handling of whole motor 6.

The present embodiment preferred elasticity compacting device 1 comprise holding ring 11 and with some elastic arms 12, the stiff end that elastic arm 12 comprises free end and is fixedly connected with holding ring 11, the free end of some elastic arms 12 stretches out holding ring 11 in the axial direction, the free end of elastic arm 12 abuts with the outermost rotor punching 21 of iron core body 2, preferred elastic arm 12 is provided with three, when motor 6 works, some rotor punchings 21 are heated and expand, extrude the elastic arm 12 abutted with it, after motor 6 quits work, rotor punching 21 is lowered the temperature and is shunk, elastic arm 12 tends to restore to the original state, then elastic arm 12 extrudes the rotor punching 21 of iron core body 2 both sides, all rotor punchings 21 of iron core body 2 are all set back, prevent gap.

Further some elastic arms 12 even circumferential is distributed in outside holding ring 11, some elastic arms 12 are one-body molded with holding ring 11, make it to rotor punching 21 uniform force, be conducive to the motion that sets back of rotor punching 21, some elastic arms 12 are one-body molded with holding ring 11, and guarantee elastic arm 12 is connected firmly with holding ring 11.

The free end of elastic arm 12 offers screw, tensile bolts 121 is equipped with in screw, tensile bolts on elastic arm 12 121 abuts with rotor punching 21, tensile bolts 121 is by transferring the length changing its elasticity of extension arm 12 in screw inward turning simultaneously, thus change the deformation of elastic arm 12, and change the elastic force of elastic arm 12, and the pre-clamping to iron core body 2 can be carried out by adjustment of tonicity bolt 121 when mounted.

Further holding ring 11 is made by spring steel with elastic arm 12, spring steel should have excellent combination property, spring steel has excellent metallurgical quality (high clarity and uniformity), good surface quality (strict control surface defect and decarburization), accurate profile and size, more safe and reliable during use.

The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. the electric machine iron core of a RO pump, comprise iron core body, iron core body comprises some rotor punchings, some rotor punchings are all coaxially arranged, equal close contact between some rotor punchings, iron core body offers axle mouth in the axial direction, it is characterized in that: described some rotor punchings all offer some first through holes, described some first through hole even circumferential distributions, some fixed levers are equipped with in described some first through holes, described iron core body both sides are all coaxially arranged with elasticity compacting device, described elasticity compacting device offers some second through holes coordinated with some fixed levers.

2. the electric machine iron core of RO pump according to claim 1, it is characterized in that: described elasticity compacting device comprise holding ring and with some elastic arms, the stiff end that described elastic arm comprises free end and is fixedly connected with holding ring, the free end of described some elastic arms stretches out holding ring in the axial direction, and the free end of elastic arm abuts with the outermost rotor punching of iron core body.

3. the electric machine iron core of RO pump according to claim 2, is characterized in that: described some elastic arm even circumferentials are distributed in outside holding ring, described some elastic arms and holding ring one-body molded.

4. the electric machine iron core of RO pump according to claim 2, is characterized in that: the free end of described elastic arm offers screw, is equipped with tensile bolts in screw.

5. the electric machine iron core of the RO pump according to Claims 2 or 3 or 4, is characterized in that: described holding ring and elastic arm are made by spring steel.