CN213451398U - Split type duplex expansion coupling sleeve - Google Patents
Split type duplex expansion coupling sleeve Download PDFInfo
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- CN213451398U CN213451398U CN202022127417.8U CN202022127417U CN213451398U CN 213451398 U CN213451398 U CN 213451398U CN 202022127417 U CN202022127417 U CN 202022127417U CN 213451398 U CN213451398 U CN 213451398U
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- inner sleeve
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Abstract
The utility model provides a split duplex expansion coupling sleeve, wherein the inner sleeve comprises a first inner sleeve and a second inner sleeve, the outer sides of the first inner sleeve and the second inner sleeve are contacted with the inner sides of the two ends of the outer sleeve, and when the first inner sleeve and the second inner sleeve move in opposite directions, the inner sleeves shrink; the first inner sleeve and the second inner sleeve respectively comprise at least two inner sleeve petals, the inner sleeve petals circumferentially surround the inner sleeve, the outer sleeve comprises at least two outer sleeve petals, the outer sleeve petals circumferentially surround the outer sleeve, and joints between the outer sleeve petals and joints between the inner sleeve petals are circumferentially staggered; the connecting piece connects the first inner sleeve with the second inner sleeve. The utility model discloses a split type's endotheca and overcoat, during the use, need not the axial and embolias, and need not to dismantle axle both ends structure and can install to adopt the integral type overcoat, during the fastening, the axial force to the overcoat of two endothecas offsets each other, and the axle can not receive unbalanced axial force, and the endotheca passes through bolted connection, and the axial force is applyed to the endotheca at both ends simultaneously, makes both ends fastening force more balanced.
Description
Technical Field
The utility model relates to an expand and connect the cover field, especially relate to a tight coupling cover that expands of split type pair.
Background
The expansion coupling sleeve is a key part for coupling a shaft and an external transmission part, and is divided into an inner sleeve and an outer sleeve, the size of the inner sleeve is reduced under the action of the axial locking force of a screw through the matching of conical surfaces of the inner sleeve and the outer sleeve, the size of the outer sleeve is expanded, the shaft is tightly connected with the external transmission part, and then sufficient friction force is generated to realize the transmission of torque, axial force or composite load of the torque and the axial force.
The expansion coupling sleeve is composed of an inner sleeve with an axial opening and an integral outer sleeve, and when the expansion coupling sleeve is used, the inner sleeve and the outer sleeve are sleeved from the shaft end. However, for the shaft, the inner sleeve and the outer sleeve with parts at two ends and the external transmission part cannot be sleeved from the shaft end, the expansion sleeve cannot be used, if the mounting cost of the dismounting machine is multiplied, even if the mounting is carried out, the problems of deformation of the external transmission part, inconsistent expansion force of the double sleeves or the combined sleeve, low reliability, difficult later maintenance, high cost and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a split-type duplex expansion coupling sleeve, which aims to overcome the problems.
A split type duplex expansion coupling sleeve comprises an inner sleeve and an outer sleeve, wherein the inner sleeve comprises a first inner sleeve and a second inner sleeve, the first inner sleeve and the second inner sleeve are coaxially arranged, the outer side of the first inner sleeve and the outer side of the second inner sleeve are respectively contacted with the inner sides of two ends of the outer sleeve, the inner sides of two ends of the outer sleeve and/or the outer sides of the inner sleeves are provided with gradual change surfaces, and when the first inner sleeve and the second inner sleeve move oppositely, the inner sleeve contracts;
the first inner sleeve and the second inner sleeve respectively comprise at least two inner sleeve petals, the inner sleeve petals circumferentially surround the inner sleeve, the outer sleeve comprises at least two outer sleeve petals, the outer sleeve petals circumferentially surround the outer sleeve, and joints between the outer sleeve petals and joints between the inner sleeve petals are circumferentially staggered;
the connecting piece is connected with the first inner sleeve at one end and connected with the second inner sleeve at the other end.
Furthermore, the first inner sleeve is circumferentially provided with a flange hole, the outer sleeve is circumferentially provided with a corresponding through hole, the second inner sleeve is axially provided with a corresponding threaded hole, the connecting piece is a bolt, and the bolt sequentially penetrates through the first inner sleeve and the outer sleeve and is fastened with the second inner sleeve.
Furthermore, the inner sleeve petals are circumferentially arranged outside the motor shaft, a motor rotor magnetic yoke is arranged outside the outer sleeve petals and comprises at least two magnetic yoke petals, the magnetic yoke petals circumferentially surround the motor rotor magnetic yoke, and the joints between the outer sleeve petals and the joints between the magnetic yoke petals are circumferentially staggered.
Further, a flange hole is formed in the circumferential direction of the magnetic yoke of the motor rotor, a corresponding threaded hole is formed in the circumferential direction of the outer sleeve, and the magnetic yoke of the motor rotor is connected with the outer sleeve through screws.
Further, the two ends of the outer sleeve are provided with flanges extending along the axial direction, the magnetic yoke petals comprise a body and positioning portions arranged at the two ends of the body, the positioning portions are annular, and the positioning portions are circumferentially arranged on the outer sides of the flanges.
Furthermore, the gradual change face is a conical face, inner conical faces are arranged at two ends of the outer sleeve, the inner conical faces enable the inner diameter of the opening of the outer sleeve to be increased, an outer conical face is arranged on the outer side of the inner sleeve, and the outer conical face is matched with the inner conical faces.
The utility model discloses a tight coupling sleeve expands of split type pair adopts split type endotheca and overcoat, during the use, need not the axial and embolias, and need not to dismantle axle both ends structure and can install to adopt the integral type overcoat, two endothecas are connected with the both ends of same endotheca promptly, during the fastening, the axial force to the overcoat of two endothecas offsets each other, and the axle can not receive unbalanced axial force, and axial displacement can not take place yet to the overcoat, can not cause the influence to other parts. When the shaft rotates, the integrated outer sleeve has higher rotation precision. The first inner sleeve and the second inner sleeve are connected through the bolt, and meanwhile, axial force is applied to the inner sleeves at the two ends, so that the fastening force at the two ends is more balanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional view of a main view structure of a split duplex expansion coupling sleeve in an embodiment of the present invention;
fig. 2 is a schematic side view of a split duplex expansion coupling sleeve according to an embodiment of the present invention, in which the outer sleeve is shown by dotted lines;
FIG. 3 is a schematic sectional view of the inner sleeve in the embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the outer casing in the embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a magnetic yoke in an embodiment of the present invention;
in the figure: 1. an inner sleeve; 11. a first inner sleeve; 12. a second inner sleeve; 13. a connecting member; 101. an inner sleeve flap; 2. a jacket; 201. a cover flap; 202. a flange; 3. a motor shaft; 4. a motor rotor magnetic yoke; 401. a magnetic yoke lobe; 402. a body; 403. a positioning part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, a split type synchronous bidirectional expansion coupling sleeve comprises an inner sleeve 1 and an outer sleeve 2, wherein inner conical surfaces are arranged at two ends of the outer sleeve 2, the inner conical surfaces increase the inner diameter of an opening of the outer sleeve 2, outer conical surfaces are arranged at the outer side of the inner sleeve 1, the inner sleeve 1 comprises a first inner sleeve 11 and a second inner sleeve 12, the first inner sleeve 11 and the second inner sleeve 12 are coaxially arranged, and the outer conical surfaces of the first inner sleeve 11 and the second inner sleeve 12 are respectively matched with the inner conical surfaces at two ends of the outer sleeve 2;
the inner conical surface and the outer conical surface can be arranged simultaneously or only one, inclined planes can be arranged on the outer side of the inner sleeve, and corresponding inclined planes are arranged on the inner side of the outer sleeve, so that the inner sleeve is more and more stressed when moving into the outer sleeve, and the purpose of tightly holding the motor shaft is achieved.
The first inner sleeve 11 is circumferentially provided with flange holes, the outer sleeve 2 is circumferentially provided with corresponding through holes, the second inner sleeve 12 is axially provided with corresponding threaded holes, the connecting piece 13 is a bolt, and the bolt sequentially penetrates through the first inner sleeve 11 and the outer sleeve 2 and is fastened with the second inner sleeve 12. The bolt provides axis locking force in the fastening process, and the inner sleeve 1 tightly holds the motor shaft 3 under the action of the axial locking force.
The first inner sleeve 11 and the second inner sleeve 12 are connected through bolts, so that the first inner sleeve 11 and the second inner sleeve 12 are subjected to axial forces with the same magnitude and opposite directions, the forces on two sides are more balanced, the rotation precision of the shaft, the inner sleeves and the outer sleeves is improved, unnecessary abrasion is reduced, and the service life of equipment is prolonged.
The first inner sleeve 11 and the second inner sleeve 12 both comprise at least two inner petals 101, the inner petals 101 surround the inner sleeve 1 in the circumferential direction, the outer sleeve 2 comprises at least two outer petals 201, the outer petals 201 surround the outer sleeve 2 in the circumferential direction, and the joints between the outer petals 201 and the joints between the inner petals 101 are arranged in a circumferentially staggered manner.
In this embodiment, there are two inner petals 101 and two outer petals 201, each inner petal 101 or outer petal 201 is semicircular when viewed axially, the edges of the inner petals 101 or the outer petals 201 are parallel to the axis of the inner sleeve or the outer sleeve, when the inner petals 101 or the outer petals 201 are combined, each inner petal 101 is connected with two outer petals 201, meanwhile, each outer petal 201 is connected with two inner petals 101, when viewed axially, the straight line where the connection position of the inner petals 101 is located is perpendicular to the straight line where the connection position of the outer petals 201 is located, that is, the connection position of the inner petal 101 is located at the middle position of the outer petal 201. Other numbers of inner petals 101 and outer petals 201 can also be provided as desired.
Inside lamella 101 circumference is located outside motor shaft 3, is equipped with motor rotor yoke 4 outside the outer lamella 201, and motor rotor yoke 4 includes two at least yoke lamella 401, and motor rotor yoke 4 is enclosed into to yoke lamella 401 circumference, and the junction between the outer lamella 201 and the junction circumference crisscross setting between the yoke lamella 401.
The outer cover 2 is provided at both ends with flanges 202 extending in the axial direction, the yoke lobe 401 includes a body 402 and positioning portions 403 provided at both ends of the body 402, the positioning portions 403 are annular, and the positioning portions 403 are circumferentially provided on the outer sides of the flanges 202. When the flange 202 is mounted, the positioning portion 403 abuts against the outer side of the flange 202.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A split type duplex expansion coupling sleeve comprises an inner sleeve (1) and an outer sleeve (2), and is characterized in that the inner sleeve (1) comprises a first inner sleeve (11) and a second inner sleeve (12), the first inner sleeve (11) and the second inner sleeve (12) are coaxially arranged, the outer side of the first inner sleeve (11) and the outer side of the second inner sleeve (12) are respectively contacted with the inner sides of the two ends of the outer sleeve (2), the inner sides of the two ends of the outer sleeve (2) and/or the outer side of the inner sleeve (1) are provided with gradual change surfaces, and when the first inner sleeve (11) and the second inner sleeve (12) move oppositely, the inner sleeve (1) contracts;
the first inner sleeve (11) and the second inner sleeve (12) respectively comprise at least two inner sleeve petals (101), the inner sleeve petals (101) are circumferentially surrounded to form the inner sleeve (1), the outer sleeve (2) comprises at least two outer sleeve petals (201), the outer sleeve petals (201) are circumferentially surrounded to form the outer sleeve (2), and the joints between the outer sleeve petals (201) and the joints between the inner sleeve petals (101) are circumferentially staggered;
the connecting piece (13) is further included, one end of the connecting piece (13) is connected with the first inner sleeve (11), and the other end of the connecting piece (13) is connected with the second inner sleeve (12).
2. The split type duplex expansion coupling sleeve as claimed in claim 1, wherein the first inner sleeve (11) is circumferentially provided with flange holes, the outer sleeve (2) is circumferentially provided with corresponding through holes, the second inner sleeve (12) is axially provided with corresponding threaded holes, and the connecting member (13) is a bolt which sequentially penetrates through the first inner sleeve (11) and the outer sleeve (2) and is fastened with the second inner sleeve (12).
3. The split duplex expansion coupling sleeve as recited in claim 1, wherein the inner lobes (101) are circumferentially disposed outside the motor shaft (3), the outer lobes (201) are externally disposed with a motor rotor yoke (4), the motor rotor yoke (4) comprises at least two yoke lobes (401), the yoke lobes (401) circumferentially surround the motor rotor yoke (4), and the junctions between the outer lobes (201) and the junctions between the yoke lobes (401) are circumferentially staggered.
4. The split duplex expansion coupling sleeve as claimed in claim 3, wherein the motor rotor yoke (4) is circumferentially provided with a flange hole, the outer sleeve (2) is circumferentially provided with a corresponding threaded hole, and the motor rotor yoke (4) is connected with the outer sleeve (2) through a screw.
5. A split duplex expansion coupling sleeve according to claim 3, wherein the outer sleeve (2) is provided with flanges (202) extending in the axial direction at both ends, the yoke lobes (401) comprise a body (402) and positioning portions (403) provided at both ends of the body (402), the positioning portions (403) are annular, and the positioning portions (403) are circumferentially provided outside the flanges (202).
6. The split type duplex expansion coupling sleeve as claimed in claim 1, wherein the gradual change surface is a conical surface, the two ends of the outer sleeve (2) are provided with inner conical surfaces, the inner conical surfaces increase the inner diameter of the opening of the outer sleeve (2), and the outer side of the inner sleeve (1) is provided with outer conical surfaces, and the outer conical surfaces are matched with the inner conical surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022127417.8U CN213451398U (en) | 2020-09-24 | 2020-09-24 | Split type duplex expansion coupling sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022127417.8U CN213451398U (en) | 2020-09-24 | 2020-09-24 | Split type duplex expansion coupling sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213451398U true CN213451398U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022127417.8U Active CN213451398U (en) | 2020-09-24 | 2020-09-24 | Split type duplex expansion coupling sleeve |
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| CN (1) | CN213451398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321197A (en) * | 2021-11-29 | 2022-04-12 | 株洲时代新材料科技股份有限公司 | Compact coupling with adjustable rigidity |
-
2020
- 2020-09-24 CN CN202022127417.8U patent/CN213451398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321197A (en) * | 2021-11-29 | 2022-04-12 | 株洲时代新材料科技股份有限公司 | Compact coupling with adjustable rigidity |
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