CN102290879A

CN102290879A - Enclosureless square motor

Info

Publication number: CN102290879A
Application number: CN2011102032554A
Authority: CN
Inventors: 陶志鹏
Original assignee: HANGZHOU DSM TECHNOLOGY Co Ltd
Current assignee: HANGZHOU DSM TECHNOLOGY Co Ltd
Priority date: 2011-07-20
Filing date: 2011-07-20
Publication date: 2011-12-21

Abstract

The invention discloses an enclosureless square motor, which comprises a left end cover, a stator, a rotor and a right end cover. The enclosureless square motor is characterized in that: the four corners of a stator core are respectively provided with a small round hole and a pin hole, and the left end cover is provided with four bolt holes corresponding to the small round holes of the stator core and four blind holes corresponding to the pin holes of the stator core; the right end cover is provided with four small round holes corresponding to the small round holes of the stator core and four blind holes corresponding to the pin holes of the stator core; four bolts sequentially pass through the small round holes of the right end cover and the small round holes of the stator core and are then screwed in the bolt holes of the left end cover; four pins pass through the pin holes of the stator core, and both ends of the four pins are then respectively inserted into the blind holes of the left end cover and the blind holes of the right end cover. The structure of the enclosureless square motor is simple, the enclosureless square motor is convenient to machine and assemble, the cost is low, moreover, positioning is accurate, and the concentricity of the rotor can be guaranteed.

Description

A kind of inorganic shell square motor

Technical field

The present invention relates to machine field, relate in particular to the square motor, specifically a kind of inorganic shell square motor.

Background technology

Prior motor is divided into column type and square two big classifications substantially.Common column type motor has casing usually, and its structure as shown in Figure 1, 2.This motor comprises left end cap 1, housing 4, stator 5, rotor 6 and right end cap 9, described stator 5 and rotor 6 place in the housing 4, left end cap 1 and right end cap 9 are connected to the two ends of housing 4, be equipped with

circular seam

3,8 in the junction, and described two

seams

3,8 are concentric, to guarantee the concentricity of rotor cylindrical and stator inner hole.

Yet inorganic shell square motor, because there is not casing, stator has only silicon steel sheet, has no idea to produce

seam

3 and 8, has two kinds for the common structure of head it off at present:

A kind of structure is shown in Fig. 3,4, stator core 5 two ends are installed two

block pressur plates

11,12 respectively, and on stator core 5 and two

block pressur plates

11,12, all offer corresponding through hole 13, with 4 bolts two

block pressur plates

11,12 are fixed on stator core 5 two sides, then at left and right sides pressing plate two

seams

14,15 of getting on the bus, and

guarantee seam

14 and 15 concentric with stator core endoporus 16, and then left and right sides end cap (not shown) is located with this

seam

14,15, with 8 screw on the end plate of the left and right sides.The shortcoming of this structure is to increase by two block pressur plates, two seams of car again after pressing plate is installed, and guarantee two seams and stator core endoporus concentricity, structure and technology is more complicated all.

Second kind of structure encircles 19 in left and right sides end cap is provided with shown in Fig. 5,6, the cylindrical 17 of interior ring is concentric with interior ring endoporus (being dead eye) 18.And interior ring 19 is longer, can insert stator inner hole 16, to guarantee the concentricity of rotor and stator inner hole, has 13,4 bolts in 4 holes to insert from right end cap on the stator, passes stator, is screwed in then in 4 screws on the left end cap, and two end caps are fixed.

This kind structure relatively is suitable for micro-machine, and is suitable for the less concentrated winding electric machine of this end size of stepping motor.

The shortcoming of this kind structure is that stator core is used for the interior location of encircling outer garden of left and right sides end cap than the long 8-10mm of rotor core (i.e. the long respectively 4-5mm of two ends), waste of material, and loop length is increased, resistance increases, copper loss increases, decrease in efficiency, motor performance variation.

Summary of the invention

The present invention will solve is the problems referred to above that prior art exists, and aims to provide a kind of simple in structurely, easy to assembly, and cost is low, and guarantees the rotor inorganic shell square motor of degree with one heart easily.

For addressing the above problem, the present invention is by the following technical solutions: a kind of inorganic shell square motor, comprise left end cap, stator, rotor and right end cap, it is characterized in that being equipped with a small sircle hole and a pin-and-hole on four angles of stator core, described left end cap is provided with four screws and with the pin-and-hole of described stator core corresponding four blind holes corresponding with the small sircle hole of described stator core; Described right end cap is provided with four small sircle holes and with the pin-and-hole of described stator core corresponding four blind holes corresponding with the small sircle hole of described stator core; Cooperate with the screw of left end cap behind the small sircle hole of four screw bolt passes right end caps and the small sircle hole of stator core; Four pins pass two ends behind the pin-and-hole of stator core and place respectively in the blind hole of the blind hole of left end cap and right end cap.

Inorganic shell square motor of the present invention, by four pins with stator and left and right sides end cap location, then by four bolts with stator with about end fastening.Need not to increase pressing plate, also need not to position by the seam of special processing, thus simple in structure, processing and easy to assembly, cost is lower, and accurate positioning, can guarantee the concentricity of rotor.

According to the present invention, it is on the benchmark circumference in the center of circle that each small sircle hole in the stator core and pin-and-hole are arranged on the electrical axis.

According to the present invention, small sircle hole and pin-and-hole in the stator core are arranged alternately.

According to the present invention, offer the fillet of indent on four angles of stator core and right end cap, the fillet place corresponding to indent on the described left end cap offers installing hole.The be placed in both sides of described indent fillet of small sircle hole on each angle of stator core and pin-and-hole.

According to the present invention, the every end of described pin grows stator core 3-4mm respectively.

According to the present invention, the pin-and-hole of described stator core is compared the higher to the center Tolerance of Degree of position of small sircle hole.

According to the present invention, described pin is preferably straight pin.

Description of drawings

The invention will be further described below in conjunction with the drawings and specific embodiments.

Fig. 1 is the structural representation that the round motor of casing is arranged.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is the stator of first kind of version of existing inorganic shell square motor and the structural representation of Anchor plate kit.

Fig. 4 is the right view of Fig. 3.

Fig. 5 is second kind of version structural representation of existing inorganic shell square motor.

Fig. 6 is the right view of Fig. 5.

Fig. 7 is the structural representation of inorganic shell square motor of the present invention, is the cutaway view of Fig. 6 along the AOB direction.

Fig. 8 is the left view of Fig. 7.

Fig. 9 is the right view of Fig. 7.

Figure 10 is the sectional view of stator core of the present invention.

Figure 11 is the structural representation of left end cap of the present invention.

Figure 12 is the structural representation of right end cap of the present invention.

Embodiment

With reference to Fig. 7-Figure 12, a kind of inorganic shell square motor of the present invention, comprise left end cap 1, stator, rotor 6 and right end cap 9, it is characterized in that being equipped with a small sircle hole 23 and a pin-and-hole 29 on four angles of stator core 5, described left end cap 1 is provided with four corresponding screws 25 of small sircle hole 23 with described stator core 5 and four blind holes 24 corresponding with the pin-and-hole 29 of described stator core 5; Described right end cap 9 is provided with four corresponding small sircle holes 22 of small sircle hole 23 with described stator core 5 and four blind holes 26 corresponding with the pin-and-hole 29 of described stator core 5; Four bolts 21 pass the small sircle hole 22 of right end cap 9 successively and small sircle hole 23 backs of stator core 5 cooperate with the screw 25 of left end cap 1; The two ends, pin-and-hole 29 back that four straight pins 27 pass stator core 5 place respectively in the blind hole 26 of the blind hole 24 of left end cap 1 and right end cap 9.

It is on the benchmark circumference in the center of circle that each small sircle hole 23 in the stator core 5 and pin-and-hole 29 are arranged on the electrical axis.And small sircle hole 23 and pin-and-hole 29 are arranged alternately.

Offer the

fillet

31,30 of indent on four angles of stator core 5 and right end cap 9,

fillet

31,30 places corresponding to indent on the described left end cap 1 offer installing hole 28, are used for motor being fixed to metope or carrying out wall-hanging fixing.The be placed in both sides of described

indent fillet

31,30 of small sircle hole 23 on each angle of stator core 5 and pin-and-hole 29.

Described straight pin 27 every ends grow stator core 3-4mm respectively.The pin-and-hole 29 of described stator core 5 is compared the higher to the center Tolerance of Degree of position of small sircle hole 23.

Inorganic shell square motor of the present invention, assemble by the following method:

Earlier rotor 6 is placed the endoporus 16 of stator core 5, two ends cover upper bearing (metal) 2,7; Four straight pins 27 are passed the pin-and-hole 29 of stator core 5, stator core end face 3-4mm is respectively stretched out at two ends again; Then left and right sides end

cap

1,9 is covered at stator core 5 two ends, and four straight pins 27 are fallen into respectively in the blind hole 26 of the blind hole 24 of left end cap 1 and right end cap 9, bearing 2,7 is placed respectively in the

dead eye

32,33 of left and right sides end cap; Last four bolts 21 pass the small sircle hole 22 of right end cap 9 successively and screw 23 back the cooperations with the screw 25 of left end cap 1 of small sircle hole of stator core 5.

What should be understood that is: the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within protection scope of the present invention.

Claims

1. inorganic shell square motor, comprise left end cap (1), stator, rotor (6) and right end cap (9), it is characterized in that being equipped with a small sircle hole (23) and a pin-and-hole (29) on four angles of stator core (5), described left end cap (1) is provided with four screws (25) corresponding with the small sircle hole (23) of described stator core (5) and four blind holes (24) corresponding with the pin-and-hole (29) of described stator core (5); Described right end cap (9) is provided with four small sircle holes (22) corresponding with the small sircle hole (23) of described stator core (5) and four blind holes (26) corresponding with the pin-and-hole (29) of described stator core (5); Four bolts (21) pass the small sircle hole (22) of right end cap (9) successively and small sircle hole (23) back of stator core (5) cooperates with the screw (25) of left end cap (1); The two ends, pin-and-hole (29) back that four pins (27) pass stator core (5) place respectively in the blind hole (26) of the blind hole (24) of left end cap (1) and right end cap (9).

2. inorganic shell square motor as claimed in claim 1 is characterized in that it is on the benchmark circumference in the center of circle that each small sircle hole (23) in the stator core (5) and pin-and-hole (29) are arranged on the electrical axis.

3. inorganic shell square motor as claimed in claim 2 is characterized in that small sircle hole (23) and the pin-and-hole (29) in the stator core (5) is arranged alternately.

4. inorganic shell square motor as claimed in claim 1, it is characterized in that offering on four angles of stator core (5) and right end cap (9) fillet (31,30) of indent, described left end cap (1) is gone up and is located to offer installing hole (28) corresponding to the fillet (31,30) of indent.

5. inorganic shell square motor as claimed in claim 4 is characterized in that the be placed in two side ends of described indent fillet (31,30) of small sircle hole (23) on each angle of stator core (5) and pin-and-hole (29).

6. inorganic shell square motor as claimed in claim 1 is characterized in that the every end of described pin (27) grows stator core (5) 3-4mm respectively.

7. inorganic shell square motor as claimed in claim 1 is characterized in that the pin-and-hole (29) of described stator core (5) is compared the higher to the center Tolerance of Degree of position of small sircle hole (23).

8. inorganic shell square motor as claimed in claim 1 is characterized in that described pin (27) is a straight pin.