YQS125 dives electric pump motor
Technical field
The present invention relates to a kind of motor for submerged pump, especially a kind of YQS125 dives electric pump motor.
Background technology
It is well known that the motor of equal rated voltage, its fixed/rotor volume is bigger, its coil line footpath is also bigger, the number of turn
Fewer, power is also bigger, on the contrary then opposite.In the case of motor housing diameter identical, want to increase fixed/rotor block of motor
Product, must just increase the length of fixed/rotor.In addition, air gap is the space between electric machine rotor, generally air gap
Excessive too small all bad all between 0.2 millimeter to 1.6 millimeters, excessive power factor reduction is too small then to assemble difficult,
Fill bad, cause rotor to be rubbed with stator, furthermore increase is influenceed by higher hamonic wave magnetic field;The length of rotor is bigger,
Amount of deflection is bigger, and motor bearings is smaller, and rotor bow is just big, it follows that both wanting to increase the length of rotor, wants to make the gas of motor again
Gap is small, and unique method is exactly expanded motor bearing.At present, stator casing, base and the thrust shaft of the latent electric pump motors of YQS125
The entirety that bearing is used wears silk connection, and such rotor can not just use larger bearing, and rotor bow is big, and design air gap is big, motor
Power factor is low, and power is small;Therefore, a kind of YQS125 using larger bearing in the case where motor housing diameter is certain is designed
Latent electric pump motor, is the current technical issues that need to address.
The content of the invention
The technical problems to be solved by the invention are to provide one kind in the case where motor housing diameter is certain using larger
The latent electric pump motors of the YQS125 of bearing.
The present invention solve its technical scheme technical scheme be:
YQS125 is dived electric pump motor, including stator, base and lower guide bearing holder assembly, and convex is welded with the lower end of stator casing
Edge, has screwed hole on the inward flange of stator casing lower end, there is connection shoulder hole on the bearing block of lower guide bearing holder assembly,
On the screwed hole and the bearing block of lower guide bearing holder assembly that lower guide bearing holder assembly passes through stator casing lower end on inward flange
Connection shoulder hole is connected with soket head cap screw I with stator, and base connecting plate is provided between lower guide bearing holder assembly and base,
Having on base connecting plate has the internal thread matched with the external screw thread on base connecting plate on external screw thread, base, base connecting plate with
Whorl of base is connected, and has connection tapped blind hole on the bearing block of lower guide bearing holder assembly, has connection on base connecting plate
With shoulder hole, base is used by the connection on the connection shoulder hole and the bearing block of lower guide bearing holder assembly on base connecting plate
Tapped blind hole is connected with soket head cap screw II with base connecting plate.
As a preferred embodiment of the present invention, in addition to top guide bearing holder assembly and rotor assembly, rotor assembly passes through
Top guide bearing holder assembly and the rotation of lower guide bearing holder assembly are fixed in stator, and inward flange is provided with the upper end of stator casing,
There is connection screwed hole on the inward flange of stator casing upper end, fixed in the upper end of stator casing by above-mentioned connection with screwed hole
There are water-sealed component and upper end cover.
As a preferred embodiment of the present invention, sand-throwing ring is installed in the upper shaft end of rotor assembly.
As a preferred embodiment of the present invention, support is also associated with upper end cover.
As a preferred embodiment of the present invention, there is connection tapped blind hole on base, connected by the tapped blind hole
There are pressure regulator membrane and footing.
As a preferred embodiment of the present invention, there is screwed hole on the side wall of base, be installed with the screwed hole anti-
Water screw.
As a preferred embodiment of the present invention, thrust disc is fixed with the lower end of the axle of rotor assembly, is set in base
There is thrust shaft block.
Compared with prior art, the present invention as a result of base connecting plate, that is, overcome due to stator casing, base with
The entirety that thrust shaft block is used wears silk connection and makes the drawbacks of rotor must use smaller bearing, has both increased the length of rotor
Degree, also reduces motor gas-gap, adds power of motor, improves the power factor of motor.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is prior art construction schematic diagram.
Embodiment
YQS125 dives electric pump motor, including stator 6, base 12 and lower guide bearing holder assembly 7, in the lower end of the shell of stator 6
Inward flange is welded with, has screwed hole on the inward flange of the shell lower end of stator 6, has on the bearing block of lower guide bearing holder assembly 7
Connection shoulder hole, lower guide bearing holder assembly 7 passes through the shell lower end of stator 6 on inward flange screwed hole and lower leading axle bearing group
Connection shoulder hole soket head cap screw I 16 on the bearing block of part 7 is connected with stator 6, in lower guide bearing holder assembly 7 and base
Being provided with to have on external screw thread, base 12 on base connecting plate 9, base connecting plate 9 between 12 has and the external screw thread on base connecting plate 9
The internal thread of matching, base connecting plate 9 is threadedly coupled with base 12, is had on the bearing block of lower guide bearing holder assembly 7
Connection tapped blind hole, there is connection shoulder hole on base connecting plate 9, and base 12 passes through the company on base connecting plate 9
The connection tapped blind hole soket head cap screw II 8 connect on the bearing block with shoulder hole and lower guide bearing holder assembly 7 connects with base
Fishplate bar 9 is connected.
Also include top guide bearing holder assembly 4 and rotor assembly 5, rotor assembly 5 passes through top guide bearing holder assembly 4 and lower leading axle
The rotation of bearing component 7 is fixed in stator 6, and inward flange, the convex in the shell upper end of stator 6 are provided with the upper end of the shell of stator 6
There is connection screwed hole on edge, water-sealed component 3 and upper end are fixed with screwed hole by above-mentioned connection in the upper end of the shell of stator 6
Lid 17.
Sand-throwing ring 2 is installed in the upper shaft end of rotor assembly 5.
Support 1 is also associated with upper end cover 17.
There is connection tapped blind hole on base 12, pressure regulator membrane 14 and footing 15 are connected with by the tapped blind hole.
There is screwed hole on the side wall of base 12, Water-proof screw 13 is installed with the screwed hole.
Thrust disc 10 is fixed with the lower end of the axle of rotor assembly 5, thrust shaft block 11 is provided with base 12.