CN205319836U - Electric machine - Google Patents

Abstract

The utility model discloses an electric machine, including the electric machine shell, be equipped with the bearing room on the electric machine shell, the relative electric machine shell of installing port on the bearing room sets up outwards. The electric machine shell machining benchmark's of irregular contour choice problem has been solved to this kind of structure, can be earlier impresses stator coil and regard as the reference surface of processing bearing room in the electric machine shell, and the processing tang is more accurate with the bearing room, has guaranteed the concentricity of stator inner chamber, tang and bearing room, once only assembles the qualification rate height, improvement electric machine efficiency, reduction energy consumption.

Description

Motor

Technical field

This utility model relates to a kind of motor, more specifically, it relates to a kind of pump motor.

Background technology

Existing pump motor has the problem that

1, motor aluminum barrel difficulty of processing is high, and aluminum machine barrel profile is irregular, adds selection reference in man-hour face and location difficulty, processing aluminum machine barrel seam exist deformation and, Product Precision is low;

2, motor aluminum machine barrel processes rear compression set subcoil, and the concentricity of stator coil inner chamber and aluminum barrel seam is difficult to guaranteed;

3, cause complete machine oscillation, noise big because complete machine concentricity is not high, disposable assembly qualified rate is low, reduces again electric efficiency and increases energy consumption.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is in that to provide a kind of motor, and bearing chamber machining accuracy is better.

For achieving the above object, this utility model provides following technical scheme: a kind of motor, including motor casing, motor casing is provided with bearing chamber, it is characterized in that: the relative motor casing of installing port on described bearing chamber is arranged outwardly.

By adopting technique scheme, after motor casing processes, being pressed into stator coil, process bearing chamber with stator coil inner ring for datum level, owing to bearing chamber is outwards arranged, facilitate cutter operation, bearing can be pressed into bearing chamber the later stage from motor casing outer end, easy to assembly.

Preferably, described motor casing includes movable end cover, barrel-type casing and unitary tip cap, one end of barrel-type casing is provided with seam, movable end cover cooperation removably connects with barrel-type casing on seam, and unitary tip cap is one-body molded with barrel-type casing, and bearing chamber is positioned on unitary tip cap.

By adopting technique scheme, barrel-type casing is good with bearing chamber integrative-structure overall mechanical strength.

Accompanying drawing explanation

Fig. 1 is motor profile;

Fig. 2 is the partial enlarged drawing of bearing chamber;

Fig. 3 is the axonometric chart of barrel-type casing;

Fig. 4 is the axonometric chart of another angle of barrel-type casing;

Fig. 5 is the overall structure figure of motor.

Accompanying drawing labelling: 1, end cap; 2, motor casing; 3, fan housing; 4, seam; 5, stator coil; 6, unitary tip cap; 7, installing port; 8, escape; 9, bearing chamber; 10, barrel-type casing; 11, chamfering; 12, through axial bore; 13, gap.

Detailed description of the invention

With reference to accompanying drawing Fig. 1～Fig. 5, this utility model embodiment is described further.

As shown in Figure 1, a kind of motor, barrel-type casing 10 including aluminum, barrel-type casing 10 one end open, the other end is shut by unitary tip cap 6 integrated with it, having the projection prominent to barrel-type casing 10 inner chamber in the middle part of unitary tip cap 6, projection inside for hollow structure and forms bearing chamber 9, and the installing port 7 of bearing chamber 9 is configured so that bearing outwardly can be pressed into bearing chamber 9 outside unitary tip cap 6;Axis hole connection barrel-type casing 10 inner chamber it is provided with, so that the rotating shaft of rotor can pass through axis hole entrance bearing chamber 9 and bearing fit after rotor installation bottom bearing chamber 9.

As shown in Figure 1, when processing seam 4 with bearing chamber 9, first stator coil 5 is pressed into barrel-type casing 10, the outer ring of stator coil 5 and the inwall of barrel-type casing 10 is made to fit, now, seam 4 and bearing chamber 9 are processed with the inner ring of stator coil 5 for datum level, because bearing chamber 9 needs and bearing interference fits, bearing is standard component, so employing basic hole system, this just requires that the machining accuracy of bearing chamber 9 is higher, because being processed as essence benchmark with stator coil 5 for datum level, now not only ensure that bearing chamber 9 reaches the machining accuracy of requirement, bearing chamber 9 can also be made, the concentricity of seam 4 and stator coil 5 reaches maximum, institute is so that complete machine operationally shakes little, noise is little, improve electric efficiency, reduce energy consumption.

As shown in Figure 3,4, barrel-type casing 10 has one end of opening and arranges seam 4, and seam 4 is used for coordinating movable end cover 1, movable end cover 1 to be bolted on barrel-type casing 10, and movable end cover 1 arranges delivery outlet, and delivery outlet is used for coordinating the output shaft of rotor. The dismountable structure of movable end cover 1 facilitates machinery check and repair herein, is easier to coordinate with miscellaneous part during as the unit head of water pump.

As shown in Figure 2, bearing chamber 9 installing port 7 place is the annular projection outside relative to motor casing 2, it is that a band is angled domatic that unitary tip cap 6 has the face of installing port 7, domatic peak has practiced into the cylindrical of installing port 7 annular protrusion, domatic minimum point has been linked to be the excircle of unitary tip cap 6, this is domatic defines the structure that unitary tip cap 6 thickness is gradually reduced to surrounding by installing hole, and this structure can enable one end face bear bigger mechanical strength.

As shown in Figure 2, escape 8 it is provided with between bearing chamber 9 and installing port 7, the place that bearing chamber 9 is connected with escape 8 is provided with chamfering 11, it it is interference fits between bearing and bearing chamber 9, when bearing is fit into bearing chamber 9, being directly loadable into can be very difficult, if first passing through chamfering 11, there is a guiding process, just make bearing to be fit into smoothly in bearing chamber 9, make bearing not easily collide with bearing chamber 9, extrude in installation process, it is easier to assembling, reduce the production cost of motor, improve installation effectiveness.

As shown in Figure 1, bottom bearing chamber 9, it is provided with through axial bore 12 communicate with inside barrel-type casing 10, through axial bore 12 is passed through for axle and enables the shaft to be connected with bearing inner race accurately, is provided with gap 13, because in motor work process between through axial bore 12 and bearing chamber 9, axle and bearing high speed rotating, when preventing bearing from rotating, bearing inner race bumps against with bearing chamber 9 inwall, reduces energy loss, improve work efficiency, extend the service life of whole motor.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model. It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (1)

1. a motor, including motor casing (2), motor casing (2) is provided with bearing chamber (9), it is characterized in that: the motor casing (2) relatively of the installing port (7) on described bearing chamber (9) is arranged outwardly; Described motor casing (2) includes movable end cover (1), barrel-type casing (10) and unitary tip cap (6), one end of barrel-type casing (10) is provided with seam (4), movable end cover (1) cooperation above removably connects with barrel-type casing (10) at seam (4), unitary tip cap (6) is one-body molded with barrel-type casing (10), and bearing chamber (9) is positioned on unitary tip cap (6).