CN2708027Y - Coupling - Google Patents
Coupling Download PDFInfo
- Publication number
- CN2708027Y CN2708027Y CN 200420060351 CN200420060351U CN2708027Y CN 2708027 Y CN2708027 Y CN 2708027Y CN 200420060351 CN200420060351 CN 200420060351 CN 200420060351 U CN200420060351 U CN 200420060351U CN 2708027 Y CN2708027 Y CN 2708027Y
- Authority
- CN
- China
- Prior art keywords
- coupling
- flat key
- sleeve
- outer sleeve
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a coupling, in particular to a tooth coupling, comprising an outer sleeve 2 and an inner sleeve 1. The outer sleeve 2 is provided with an inner tooth and a flange; the inner sleeve 1 is provided with an outer tooth engaged with the inner tooth of the outer sleeve 2. A set of couplings comprises two outer sleeves 2 and two inner sleeves 1, and the connection mode is that the two outer sleeves 2 of the coupling are connected through a bolt 6. The utility model is characterized in that flat key-slots 4 are symmetrically arranged in axial direction on the flange of the outer sleeve 2 of the coupling, and flat keys 3 are arranged in the flat key-slots 4. Because flat key structure is adopted on the flange of the outer sleeve, the line contact formed by connecting the bolt of the outer sleeve and the threaded hole is changed into plane contact between the flat key and the sleeve. The torque transferred by the sleeve is accepted depending on the two sides of the flat key, and the bearing load is increased. The utility model has the advantages of simple structure, low cost, big bearing load, convenient and simple operation; thus the coupling is protected from damage, and the service life of the coupling is extended by 3 to 5 times.
Description
Technical field the utility model relates to a kind of coupling, relates in particular to a kind of gear coupling.
The background technique gear coupling is a kind of of flexible coupling, can compensate the relative displacement that connects diaxon.Usually formed by two outer sleeve and two inner sleeves that have external tooth that have internal tooth and flange.Two inner sleeves connect with diaxon with key respectively, and two outer sleeves fuse with bolt, and external tooth is meshed with transmitting movement and torque in relying on.Inner sleeve because external tooth is made ellipse, and has suitable bottom clearance and sideshake after assurance and the internal tooth engagement, so when transmission, can have axially and radial displacement and angular displacement.The purpose of injecting lubricant oil in the oilhole is in order to reduce wear, and between inside and outside sleeve seal ring is housed, and the baffle ring fixed seal ring is sealed oilhole with bolt at ordinary times, leaks to prevent lubricating oil.
Gear coupling can transmit very big torque, and allows bigger side-play amount and angular displacement; And quality own is bigger, extensively utilization in heavy machinery, so the maneuvering load of gear coupling is very big, if connect the bad of diaxon to moderate, during work diaxon produce bigger axially, oscillating quantity radially, make the coupling inner sleeve that very big side-play amount take place, when side-play amount meshes bottom clearance and sideshake greater than interior external tooth, directly cause two outer sleeve connecting bolts to be pulled out of shape or cut off, influence the normal use of coupling, and will shorten the life-span greatly.
The summary of the invention the purpose of this utility model is to provide a kind of coupling; when the diaxon that connects when coupling produces relative displacement greatly; the impact force that the outer sleeve attachment bolt is born shifts, and it is injury-free finally to play the protection coupling, prolongs the coupling effect in working life.
The technological scheme that the utility model adopted is: a kind of coupling, comprise outer sleeve 2, inner sleeve 1, described outer sleeve 2 has internal tooth and flange, inner sleeve 1 has the external tooth that is meshed with the internal tooth of outer sleeve 2, one cover coupling comprises outer sleeve 2, inner sleeve 1 each two, its Placement is to couple together by two outer sleeves 2 of bolt 6 with coupling, it is characterized in that: on the flange of coupling outer sleeve 2, symmetric arrangement has flat key groove 4 vertically, flat key 3 is arranged in the flat key groove 4, the sleeve torque transmitted is accepted in two sides by flat key 3, bears load.
For preventing that coupling flat key 3 in rotary course is subjected to displacement, be convenient for changing and safeguard, adopt hexagon socket head cap screw 5 to connect flat keys 3 and outer sleeves 2, flat key 3 is fixed in the flat key groove 4 on outer sleeve 2 flanges.
Owing on the flange of outer sleeve, adopt flat key structure; to contact with the line that screw is formed by the bolt that connects outer sleeve; being transformed into flat key contacts with face between sleeve; the sleeve torque transmitted is accepted in two sides by flat key; the load that bears increases; so the utlity model has simple in structure, with low cost, to bear load big, easy to operate, simple and easy, thereby it is injury-free to play the protection coupling, prolongs coupling 3～5 times advantage in working life.
Description of drawings Fig. 1 coupling embodiment 1 partial schematic sectional view of the present utility model
Fig. 2 the utility model Fig. 1 along A-A to cross-sectional schematic
The local enlarged diagram of flat key structure among Fig. 3 the utility model Fig. 1
Fig. 4 coupling embodiment 2 partial schematic sectional view of the present utility model
Fig. 5 the utility model Fig. 4 along B-B to cross-sectional schematic
The local enlarged diagram of flat key structure among Fig. 6 the utility model Fig. 4
Embodiment is described further the utility model below in conjunction with accompanying drawing.
As shown in drawings, a kind of coupling, comprise outer sleeve 2, inner sleeve 1, described outer sleeve 2 has internal tooth and flange, and inner sleeve 1 has the external tooth that is meshed with the internal tooth of outer sleeve 2, and a cover coupling comprises outer sleeve 2, inner sleeve 1 each two, its Placement is to couple together by two outer sleeves 2 of bolt 6 with coupling, it is characterized in that: on the flange of coupling outer sleeve 2, symmetric arrangement has flat key groove 4 vertically, and flat key 3 is arranged in the flat key groove 4.
For preventing that coupling flat key 3 in rotary course is subjected to displacement, be convenient for changing and safeguard, adopt hexagon socket head cap screw 5 to connect flat keys 3 and outer sleeves 2, flat key 3 is fixed in the flat key groove 4 on outer sleeve 2 flanges.
Embodiment 1 is at the E1 milling train of 1450mm hot rolled plate factory of Panzhihua Inon ﹠ Steel (Group) Co., main driving motor power is 2000KW, be after 1.29 speed reducer slows down through reduction speed ratio when rotating speed of motor is 250rpm (getting maximum value), (model is the gear coupling of GIICL18 to its synchronous coupling, the number of the bolt 6 of Φ 20mm is 18, a bolt and an axle centre distance 682mm) to bear the load of 763802.8Nm in theory, the shear strength 198.1Mpa of sleeve attachment bolt bar, and its shearing stress allowable only is 128Mpa, so the shear strength of bolt shank does not satisfy condition, under the high load operating conditions, cause attachment bolt often to be cut off, bolt hole is badly damaged, and the coupling damaged condition is serious, cisco unity malfunction; Coupling damages and to cause two edger rolls can not synchronization motion, causes the bad or lateral bending of plate shape.
As shown in Figure 1, 2, 3, so this coupling is improved, on the flange of coupling outer sleeve 2, two flat key grooves 4 of symmetry processing vertically, flat key groove 4 is open types, in flat key groove 4, respectively put a flat key 3, flat key 3 is of a size of 50mm * 100mm * 120mm, is subjected to displacement for preventing coupling flat key 3 in rotary course, is convenient for changing and safeguards, each adopts two hexagon socket head cap screws 5 to connect flat keys 3 and outer sleeves 2, flat key 3 is fixed in the flat key groove 4 on the flange of outer sleeve 2.Improve the back equipment operation and tend towards stability, effect is obvious, on average prolongs 3～5 times of coupling life-spans.
The utility model is not only applicable to gear coupling, also is widely used in the coupling of flanged dish.
Claims (3)
1, a kind of coupling, comprise outer sleeve (2), inner sleeve (1), described outer sleeve (2) has internal tooth and flange, inner sleeve (1) has the external tooth that is meshed with the internal tooth of outer sleeve (2), one cover coupling comprises each two of outer sleeve (2), inner sleeves (1), its Placement is to couple together by two outer sleeves (2) of bolt (6) with coupling, it is characterized in that: on the flange of coupling outer sleeve (2), symmetric arrangement has flat key groove (4) vertically, and flat key (3) is arranged in the flat key groove (4).
2, coupling as claimed in claim 1 is characterized in that: described flat key (3) is to be fixed in the flat key groove (4) with hexagon socket head cap screw (5).
3, coupling as claimed in claim 1 or 2 is characterized in that: described flat key groove (4) is enclosed construction or open type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060351 CN2708027Y (en) | 2004-07-19 | 2004-07-19 | Coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060351 CN2708027Y (en) | 2004-07-19 | 2004-07-19 | Coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708027Y true CN2708027Y (en) | 2005-07-06 |
Family
ID=34852017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060351 Expired - Fee Related CN2708027Y (en) | 2004-07-19 | 2004-07-19 | Coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708027Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644672A (en) * | 2012-04-27 | 2012-08-22 | 苏州市金翔钛设备有限公司 | Coupling for stirring device |
| CN103398112A (en) * | 2013-08-06 | 2013-11-20 | 袁正敏 | Clamping key type coupler |
-
2004
- 2004-07-19 CN CN 200420060351 patent/CN2708027Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644672A (en) * | 2012-04-27 | 2012-08-22 | 苏州市金翔钛设备有限公司 | Coupling for stirring device |
| CN103398112A (en) * | 2013-08-06 | 2013-11-20 | 袁正敏 | Clamping key type coupler |
| CN103398112B (en) * | 2013-08-06 | 2016-01-20 | 袁正敏 | Card key formula coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 Termination date: 20100719 |