CN101267135B - Industrial Sewing Machine Motor Housing - Google Patents

Abstract

The motor casing for industrial sewing machine is one casting formed hollow cylinder with one large cylinder and one small cylinder, and has several small ribs distributed homogeneously on the outer surface layer, several large ribs distributed homogeneously on the inner wall, one end of the small cylinder being bottom and sealed in cross shape and one inward raised conic platform in the center. The invention has the advantages that the machine body has a small structure, a 6202 bearing can be adopted, raw materials are saved, the same motor output power can be achieved, the weight of the motor is reduced, and the cost is reduced.

Description

Industrial Sewing Machine Motor Housing

technical field

The invention relates to a motor casing, in particular to an industrial sewing machine motor casing.

Background technique

At present, in the motors used in industrial sewing machines on the market, the structure of the stator iron chips is too large, and the shell is also too large. Most of them use 6203 bearings, and there is no shell with a small fuselage structure and 6202 bearings.

Contents of the invention

The technical problem of the present invention is to provide an industrial sewing machine motor housing with small body structure, 6202 bearings, low cost and simple structure.

In order to solve the above technical problems, the present invention provides a motor housing for industrial sewing machines. The entire structure of the motor housing is directly molded into two sections of hollow cylinders, one section is a large cylinder, the other section is a small cylinder, and the small cylinder There are several small ribs evenly distributed on the outer surface of the body, and several large ribs evenly distributed on the inner wall. One end of the small cylinder is the bottom, which is closed in a cross shape.

The outer circumference of the large cylinder is distributed with three outwardly protruding bosses I, II, III, and a big boss IV, the radial centerline angle a1 between the big boss IV and the small boss I, is 12±5°; the angles a2, a3, a4 between the radial centerlines of the three small bosses I, II, III are 125±10°, 130±10°, 105±10° respectively; The shoulder surface of the large cylinder has ventilation slots.

The outer diameter f of the large cylinder is 187±15mm; the height u is 29±5mm; the inner circle has several steps from the port to the inside, and the inner diameters a, ak, and b of the steps are 180±15mm, 177±10mm, 133±10mm; step depth o, P, t are 3mm～6mm, 3mm～6mm, 24±5mm respectively.

The outer circle of the small cylinder has steps from the bottom to the inside, the outer diameter i is 127±10mm; the depth y is 13±5mm; the outer diameter e is 133±10mm; the wall thickness v is 2.5mm～5mm ; The height n-u is 114±10mm.

The frustum of a cone protruding inward from the center of the bottom of the small cylinder has an outer diameter g of the port of 45 ± 10 mm; an outer diameter L of the bottom of the truncated cone is 50 ± 10 mm; a height m of 19 ± 5 mm; an inner diameter of the inner hole h, is 35±6mm; the span j from the inner hole end face of the truncated cone to the front face of the large cylinder is 137±15mm; the span k from the inner diameter b of the large cylinder to the rear end face is 110±10mm.

The several large ribs evenly distributed in the inner circle of the small cylinder have steps, and the inner diameters c and d are 120.5±10mm and 1204±10mm respectively; the depths q and r are 25±5mm and 57±8mm respectively; the width aa, The angles a5 and a6 between the radial centerlines of the ribs V and VI and the radial centerlines of the outer circular boss III of the large cylinder are 15±10° and 38±10° respectively.

The outer circle of the small cylinder is evenly distributed with several small ribs, the length x of which is 93±8mm; the height w is 2mm-5mm; the width ag is 3mm-8mm; the cross-section of the ribs is arc-shaped, and the arc The radius ah is 2.5mm; the end is semicircular, and the radius s of the arc at the end is 2.5mm.

The superior effect of the present invention is that: the body structure is small, and 6202 bearings can be used, which not only saves raw materials, but also achieves the same output power of the motor, reduces the weight of the motor, and reduces the cost, killing three birds with one stone.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a sectional view along the direction A of Fig. 1;

Explanation of symbols in the figure

1- Ventilation slots.

Detailed ways

Please refer to the accompanying drawings for a further description of the present invention.

As shown in Figure 1 and Figure 2, the entire structure of the motor casing is directly cast, and it is two hollow cylinders, one is a large cylinder, and the other is a small cylinder, and the outer layer of the small cylinder is evenly distributed with a number of small ribs , the inner wall is evenly distributed with a number of large ribs, one end of the small cylinder is the bottom, closed in a cross shape, and there is a conical frustum protruding inward in the center of the bottom.

The outer circumference of the large cylinder is distributed with three outwardly protruding bosses I, II, III, and a big boss IV, the radial centerline angle a1 between the big boss IV and the small boss I, Be 12 °, the shoulder surface of large cylinder has ventilation groove 1.

The angles a2, a3, and a4 between the radial centerlines of the three small bosses I, II, and III are 125°, 130°, and 105° respectively; the widths of the three small bosses I, II, and III ac is 17mm; radial arc radius ab is 107mm; width ad of large boss IV is 30mm; height ae is 30.5±5mm; length z is 43mm; arc radius af is 13mm.

The outer diameter f of the large cylinder described above is 187 mm, the height u is 29 mm, and the inner circle has several steps from the port to the inside, and the inner diameters a, ak, and b of the steps are 180 ₊₀ ^+0.1 mm, 177 mm, and 133 _{+0 respectively} ^+0.08 mm; step depth o, P, t, respectively 4mm, 4mm, 24mm.

The outer circle of the small cylinder has steps from the bottom to the inside, its outer diameter i is _127-0.4-0.3 mm; its depth y is ¹³ mm; its outer diameter e is 133 mm; its wall thickness v is 3 mm; its height nu is It is 114mm.

For the truncated cone protruding inward at the center of the bottom of the small cylinder, the outer diameter of the port g is 45 mm; the outer diameter L of the bottom is 50 mm; the height m is 19 mm; the inner diameter h is 35 _{+ 0.01} ^{+ 0.02} mm; The span j from the inner hole end face of the truncated cone to the front face of the large cylinder is 137 ₊₀ ^+0.3 mm; the span k from the inner diameter b of the large cylinder to the rear end face is 110 ₊₀ ^+0.3 mm.

A number of large ribs evenly distributed in the inner circle of the small cylinder have steps, and the inner diameters c and d are 120.5mm and _120-0.08-0mm respectively; the depths q and r are 25mm and ^57mm respectively; the width aa is 5mm ; Several large ribs evenly distributed in the inner circle are uniformly distributed by rib V and rib VI at 90°, wherein the radial center line of rib V, VI and the radial center line of the outer circular boss III of the large cylinder form an angle a5 , a6 are 15° and 38° respectively.

The outer circle of the small cylinder is evenly distributed with several small ribs, the length x is 93mm; the height w is 3mm; the width ag is 5mm; the cross section of the ribs is arc-shaped, and the arc radius ah is 2.5mm ; The end is semicircular, and the radius s of the arc at the end is 2.5mm.

Claims (4)

1. industrial sartorius electromotor shell is characterized in that:

The direct casting of the total of this motor housing, be two sections hollow cylinders, one section is large cylinder, another section is a small cylinder, the small cylinder extexine is evenly equipped with some small rib strips, and inner wall even distribution has some big ribs, and small cylinder one end is the bottom, the across sealing, there is a protruding inwards frustum of a cone in bottom centre;

Described large cylinder cylindrical is distributed with three first small boss I to outer lug, the second small boss II, the 3rd small boss III and a big boss IV, and the radial centre lines angle a1 between the big boss IV and the first small boss I is 12 ± 5 °; Angle a2, a3, a4 between the radial centre lines of the first small boss I, the second small boss II, the 3rd small boss III are respectively 125 ± 10 °, 130 ± 10 °, 105 ± 10 °; The circular bead surface of large cylinder has ventilation slot.

Described large cylinder external diameter f is 187 ± 15mm; Height u is 29 ± 5mm; Interior circle has several steps inwards from port, and step internal diameter a, ak, b are respectively 180 ± 15mm, 177 ± 10mm, 133 ± 10mm; Step degree of depth o, P, t are respectively 3mm～6mm, 3mm～6mm, 24 ± 5mm;

Described small cylinder cylindrical has step inwards from the bottom, its external diameter i is 127 ± 10mm; Depth y is 13 ± 5mm; External diameter e is 133 ± 10mm; Wall thickness v is 2.5mm～5mm; Height n-u is 114 ± 10mm.

2. by the described a kind of industrial sartorius electromotor shell of claim 1, it is characterized in that:

The protruding inwards frustum of a cone of described small cylinder bottom centre, its port outside diameter g is 45 ± 10mm; Bottom external diameter L is 50 ± 10mm; Height m is 19 ± 5mm; Endoporus internal diameter h is 35 ± 6mm; Hole end surface is 137 ± 15mm to large cylinder front end face span j in the frustum of a cone; To large cylinder internal diameter b rear end face span k, be 110 ± 10mm.

3. by the described a kind of industrial sartorius electromotor shell of claim 1, it is characterized in that:

The uniform some big rib of circle has step in the described small cylinder, and its internal diameter c, d are respectively 120.5 ± 10mm, 120 ± 10mm; Degree of depth q, r are respectively 25 ± 5mm, 57 ± 8mm; Width aa is 3mm～8mm; Radial centre lines angle a5, the a6 of the radial centre lines of wherein first rib V, second largest rib VI and large cylinder cylindrical the 3rd small boss III are respectively 15 ± 10 °, 38 ± 10 °.

4. by the described a kind of industrial sartorius electromotor shell of claim 1, it is characterized in that:

Described small cylinder cylindrical is evenly equipped with some small rib strips, and its length x is 93 ± 8mm; Height w is 2mm～5mm; Width ag is 3mm～8mm; The small rib strip cross section is circular-arc, and arc radius ah is 2.5mm; It is semicircle that the end becomes, and end arc radius s is 2.5mm.

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