CN212019969U

CN212019969U - Hot jacket frock to stator of taking long key and casing pressure equipment of taking keyway

Info

Publication number: CN212019969U
Application number: CN201922435898.6U
Authority: CN
Inventors: 李磊; 刘振国; 魏玉珍; 吕小科
Original assignee: Suzhou Lvkon Transmission S&T Co Ltd
Current assignee: Suzhou Lvkon Transmission S&T Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-27
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a to the shrink fit frock of the stator of taking the long key and the casing pressure equipment of taking the keyway, its bottom end winding's that ensures the stator safety and guarantee casing keyway and stator long key centering degree, ensures that the equipment is swift high-efficient. The upper surface of the bottom supporting structure is provided with a first upper convex ring, a second upper convex ring and a third upper convex ring in sequence from the radial direction of the circle center, the outer diameter of the first upper convex ring is smaller than the inner diameter of the stator core, the height of the first upper convex ring is higher than that of the second upper convex ring, an installation supporting interval is reserved between the first upper convex ring and the second upper convex ring, the lower end face of the stator core is supported on the upper end face of the second upper convex ring, a plurality of positioning threaded holes are annularly distributed on the radial outer annular surface of the bottom supporting structure, the positioning plate comprises a bottom positioning ring, a central sleeve and an upper positioning ring, a plurality of through holes are annularly distributed on the bottom positioning ring, and the through holes are correspondingly arranged corresponding to the positioning threaded holes one to one.

Description

Hot jacket frock to stator of taking long key and casing pressure equipment of taking keyway

Technical Field

The utility model relates to a technical field of electronic equipment specifically is a hot jacket frock to the stator of taking the long key and the casing pressure equipment of taking the keyway.

Background

When current motor casing and stator carry out the shrink fit, the stator is settled on the locating surface, then with motor casing downwards shrink fit in the outer anchor ring of stator, at the actual process, the end winding of the bottom of stator can be crushed at the shrink fit in-process, and then leads to whole motor assembly to become invalid. In addition, for the stator with long keys and the shell with key grooves, the centering degree is difficult to guarantee, the keys and the key grooves are easily misaligned, the shell is pressed to be deviated, materials are scraped seriously, and the whole stator shell hot jacket is caused to fail.

Disclosure of Invention

In view of the above problem, the utility model provides a to the stator of taking the long key and the shrink fit frock of the casing pressure equipment of taking the keyway, its bottom end winding's that ensures the stator safety and guarantee casing keyway and stator long key centering degree, ensures that the equipment is swift high-efficient.

The utility model provides a hot jacket frock to stator of taking the long key and the casing pressure equipment of taking the keyway which characterized in that: it includes bottom sprag structure, locating plate, guide ring, clamping ring, bottom sprag structure's upper surface radially and outward has arranged bulge loop on first bulge loop, second, third in order from the centre of a circle radially, the external diameter of bulge loop is less than stator core's internal diameter on first, the height of bulge loop is higher than bulge loop on the second on first, leave installation supporting interval between bulge loop and the second on first, stator core lower extreme face supports in the up end of bulge loop on the second, bottom sprag structure's radial outer loop face ring cloth has a plurality of location screw holes, the locating plate includes bottom holding ring, central sleeve, upper portion holding ring, bottom holding ring cloth has a plurality of through holes, the through hole corresponds location screw hole one-to-one and arranges, the bottom of the long bolt that corresponds runs through the cover is equipped with the spring behind the through hole, and the rigid coupling in location screw hole, the upper bolt head of each long bolt is pressed and attached to the upper surface of the bottom positioning ring, the ring wall of the central sleeve at the initial installation position is sleeved on the outer ring surface of the stator core, the upper surface of the upper positioning ring of the central sleeve is higher than the upper end surface of the stator core, the bottom ring surface of the shell is supported on the upper positioning ring, the guide ring is sleeved on the outer ring surface of the upper end winding of the stator, the bottom of the guide ring is supported on the upper end surface of the stator core of the stator, the inner ring wall of the shell is sleeved on the upper outer ring position of the guide ring, and the pressing and attaching end surface of the compression ring covers the upper end surface of the shell; the third upper convex ring is the pressing attachment stop height position of the bottom positioning ring; two positioning key grooves are formed in the central sleeve of the positioning plate corresponding to key positions of the stator core, the width of each key groove is larger than that of the stator core, two guiding long keys are arranged on the outer ring wall of the guiding ring and are arranged corresponding to the positioning key grooves, and therefore circumferential positioning of the positioning plate, the guiding ring and the stator core is guaranteed.

It is further characterized in that:

a lower convex limiting sleeve ring is arranged on the outer side of the compression ring, and the inner diameter of the lower convex limiting sleeve ring is larger than the maximum excircle diameter of the casing, so that the casing cannot be crushed;

the key width of the guide long key is smaller than the corresponding width of the key of the stator core, so that the guide effect of the guide long key on the assembly of the shell is ensured.

After adopting above-mentioned technical scheme, utilize the locating plate to fix a position the stator circumference of taking the key and guarantee that the guide ring aligns from top to bottom with the long guide key of stator, then utilize the long guide key of guide ring to do the direction for the casing keyway, thereby on the long key of the stator of impressing smoothly, effectively realize the centering of casing and stator, because leave the erection support interval between first last bulge loop and the second bulge loop, the bottom end winding of stator is corresponding to erection support interval setting, it ensures the safety of the bottom end winding of stator, ensure that the equipment is swift high-efficient.

Drawings

Fig. 1 is a schematic structural view of a perspective view of the present invention (including a stator and a casing);

FIG. 2 is a schematic cross-sectional view of the front view of FIG. 1;

the names corresponding to the sequence numbers in the figure are as follows:

the structure comprises a bottom supporting structure 1, a first upper convex ring 11, a second upper convex ring 12, a third upper convex ring 13, a positioning threaded hole 14, a positioning plate 2, a bottom positioning ring 21, a central sleeve 22, a positioning key groove 221, an upper positioning ring 23, a through hole 24, a guide ring 3, a guide long key 31, a pressing ring 4, a pressing attachment end surface 41, a lower convex limiting lantern ring 42, a stator 5, a mounting and supporting interval 6, a machine shell 7, a long bolt 8, an upper bolt head 81 and a spring 9.

Detailed Description

A hot jacket tool for press fitting of a stator with a long key and a shell with a key slot is disclosed in the figures 1 and 2: the stator comprises a bottom supporting structure 1, a positioning plate 2, a guide ring 3 and a pressure ring 4, wherein a first upper convex ring 11, a second upper convex ring 12 and a third upper convex ring 13 are sequentially arranged on the upper surface of the bottom supporting structure 1 from the radial direction of a circle center to the outside, the outer diameter of the first upper convex ring 11 is slightly smaller than the inner diameter of a stator core of the stator 5, the height of the first upper convex ring 11 is higher than that of the second upper convex ring 12, an installation and support interval 6 is reserved between the first upper convex ring 11 and the second upper convex ring 12, the inner diameter of the second upper convex ring 12 is slightly larger than the outer diameter of a lower end winding of the stator 5, the lower end surface of the stator core of the stator 5 is supported on the upper end surface of the second upper convex ring 12, a plurality of positioning threaded holes 14 are annularly arranged on the radial outer annular surface of the bottom supporting structure 1, the positioning plate 2 comprises a bottom positioning ring 21, a central sleeve 22 and an upper positioning ring 23, a plurality, the bottom of the corresponding long bolt 8 penetrates through the through hole 24 and then is sleeved with a spring 9 and fixedly connected to the positioning threaded hole 14, the upper bolt head 81 of each long bolt 8 presses and attaches to the upper surface of the bottom positioning ring 21, the ring wall of the central sleeve 22 in the initial installation position is sleeved on the excircle of the stator core of the stator 5, the upper surface of the upper positioning ring 23 is higher than the upper end surface of the stator core of the stator 5, the bottom ring surface of the casing 7 is supported on the upper surface of the upper positioning ring 23, the inner diameter of the guide ring 3 is slightly larger than the outer diameter of the stator upper end winding of the stator 5 and is sleeved on the excircle of the upper end winding of the stator 5, the bottom of the guide ring 3 is supported on the upper end surface of the stator core of the stator 5, the inner ring wall of the casing 7 is sleeved on the upper outer ring of the guide ring 3, and; the third upper convex ring 13 is the pressing attachment stop height position of the bottom positioning ring 21; two positioning key grooves 221 are formed in the positions, corresponding to the two long keys of the stator core of the stator 5, of the central sleeve 22 of the positioning plate 2, the width of each key groove 221 is larger than that of the two long keys of the stator core of the stator 5, two guiding long keys 31 are arranged on the outer annular wall of the guide ring 3, the guiding long keys 31 are arranged corresponding to the positions of the positioning key grooves 221, and circumferential positioning of the positioning plate 2, the guide ring 3 and the stator 5 is guaranteed.

A lower convex limiting lantern ring 42 is arranged on the outer side of the press ring 4, and the inner diameter of the lower convex limiting lantern ring 42 is larger than the maximum outer circle diameter of the machine shell 7;

the key width of the guide long key 31 is smaller than the corresponding width of the two long keys of the stator core of the stator 5, so that the guide effect of the guide long key on the assembly of the guide long key 31 on the machine shell 7 is ensured.

The working principle is as follows: utilize the locating plate to fix a position the stator circumference of taking the key and guarantee that the guide ring aligns from top to bottom with the long guide key of stator, then utilize the long guide key of guide ring to do the direction for the casing keyway, thereby on the long key of the stator of impressing smoothly, effectively realize the centering of casing and stator, because leave the erection support interval between first last bulge loop and the second bulge loop, the bottom end winding of stator sets up corresponding to the erection support interval, it ensures the safety of the bottom end winding of stator, ensure that the equipment is swift high-efficient.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a hot jacket frock to stator of taking the long key and the casing pressure equipment of taking the keyway which characterized in that: it includes bottom sprag structure, locating plate, guide ring, clamping ring, bottom sprag structure's upper surface is radial and has arranged bulge loop on first bulge loop, the second in order outward from the centre of a circle, the external diameter of first bulge loop is less than stator core's internal diameter, the bulge loop is higher than on the second in height of first bulge loop, leave installation supporting interval between bulge loop and the second on first bulge loop, stator core's lower terminal surface support in the up end of bulge loop is gone up to the second, bottom sprag structure's radial outer loop face ring cloth has a plurality of location screw holes, the locating plate includes bottom holding ring, central sleeve, upper portion holding ring, bottom holding ring cover has a plurality of through holes, the through hole corresponds location screw hole one-to-one and arranges, and the bottom of the long bolt that corresponds runs through the cover is equipped with the spring behind the through hole, The upper bolt head of each long bolt is pressed and attached to the upper surface of the bottom positioning ring, the ring wall of a central sleeve at the initial installation position is sleeved on the outer ring surface of the stator core, the upper end surface of the upper positioning ring of the central sleeve is higher than the outer side rabbet of the upper ring of the stator core, the bottom ring surface of the casing is supported on the upper positioning ring, the guide ring is sleeved on the outer ring surface of the upper end winding of the stator core, the bottom of the guide ring is supported on the upper end surface of the stator core, the inner ring wall of the casing is sleeved on the upper outer ring position of the guide ring, and the pressing and attaching end surface of the compression ring covers the upper end surface of the casing; the third upper convex ring is the pressing attachment stop height position of the bottom positioning ring; two positioning key grooves are formed in the central sleeve of the positioning plate corresponding to the key positions of the stator core, the width of each key groove is larger than that of each key of the stator core, two guiding long keys are arranged on the outer ring wall of each guiding ring, and the guiding long keys are arranged corresponding to the positioning key grooves.

2. The hot jacket tool for press fitting of the stator with the long key and the shell with the key slot as claimed in claim 1, wherein: the outside of clamping ring is provided with down the spacing lantern ring down, the internal diameter of the spacing lantern ring of down is greater than the biggest excircle diameter of casing.

3. The hot jacket tool for press fitting of the stator with the long key and the shell with the key slot as claimed in claim 1, wherein: the key width of the guide long key is smaller than the corresponding width of the key of the stator core.