CN201486965U - Key connecting device used in mechanical joint transmission - Google Patents
Key connecting device used in mechanical joint transmission Download PDFInfo
- Publication number
- CN201486965U CN201486965U CN2009201857295U CN200920185729U CN201486965U CN 201486965 U CN201486965 U CN 201486965U CN 2009201857295 U CN2009201857295 U CN 2009201857295U CN 200920185729 U CN200920185729 U CN 200920185729U CN 201486965 U CN201486965 U CN 201486965U
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- CN
- China
- Prior art keywords
- key
- propeller boss
- shaft
- hub
- taper
- 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 key connecting device used in mechanical joint transmission, which comprises a shaft, a hub sheathed on the shaft and a taper key; the front end of the shaft is provided with a shaft key groove; a hub key groove matched with the shaft key groove is arranged in the inner hole of the hub; the taper key is inserted between the shaft key groove and the hub key groove so as to fix the shaft and the hub. The key connecting device is characterized by also comprising a tapping screw; the hub key groove is provided with an upper semi-circle hole; the taper key is provided with a lower semi-circle hole matched with the upper semi-circle hole; the tapping screw is matched with the upper semi-circle hole and the lower semi-circle hole to fix the hub on the shaft; and the taper key is also provided with a counter bore used for the tapping screw passing through. The tapping screw can prevent the taper key from loosening and falling off, thus leading the shaft to be connected with the hub more firmly; and a notch can protect the hook head of the taper key from being damaged due to collision of foreign objects, and simultaneously the installation and disassembly are convenient.
Description
Technical field
The utility model relates to a kind of key connection set that is used for the mechanical connection transmission.
Background technique
As shown in Figures 1 to 3, traditional wedge key connects and comprises axle (3), propeller boss (1) and taper key (2), offers shaft spline (31) on axle, offers propeller boss keyway (11) at propeller boss.Taper key (2) pack into propeller boss keyway and shaft spline between, thereby coupling shaft and propeller boss do not relatively rotate axle and propeller boss, simultaneously can transmitting torque, gib head is for dismantling use.Because axially frictionally locking of taper key (2), constraint is unfixing.When long-time running in vibration environment, taper key may be deviate from owing to the deficiency of friction.Thereby axle (3) and propeller boss (1) are relatively rotated, can not transmitting torque and cause production accident.
The model utility content
The utility model be overcome the deficiencies in the prior art and provide that a kind of taper key can be firm with on the propeller boss stationary axle, do not vibrated and the key connection set that is used for the mechanical connection transmission that friction influences.
In order to achieve the above object, the utility model is achieved in that it is a kind of key connection set that is used for the mechanical connection transmission, comprises axle, is set in propeller boss and taper key on the axle; Front end at axle offers shaft spline, also offers the propeller boss keyway that cooperates with shaft spline in the propeller boss endoporus, thereby taper key is inserted in axle is fixed with propeller boss; It is characterized in that: also comprise tapping screw, on the propeller boss keyway, have first circular hole, on taper key, have second circular hole that matches with first circular hole, tapping screw and upper and lower semicircle orifice screw-thread fit are fixed on propeller boss on the axle, also have the counter sink that tapping screw can pass on taper key.
The breach that the end of taper key can fall into is offered in the position that is positioned at the propeller boss keyway on described propeller boss.
The utility model advantage compared with prior art is: tapping screw can prevent the taper key loose or dislocation, make the axle with propeller boss be connected more firm; Breach can be protected the gib head of taper key not to be subjected to the foreign object collision and damage convenient simultaneously the installation and dismounting.
Description of drawings
Fig. 1 is traditional key connection set generalized section that is used for the mechanical connection transmission;
Fig. 2 is traditional key connection set assembling schematic representation that is used for the mechanical connection transmission;
Fig. 3 is the explosive view of Fig. 2;
Fig. 4 is a sectional drawing of the present utility model;
Fig. 5 is an assembling schematic representation of the present utility model;
Fig. 6 is the explosive view of Fig. 5;
Fig. 7 is the explosive view of Fig. 6 Rotate 180 degree.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described;
Shown in Fig. 4,5,6, it is a kind of key connection set that is used for the mechanical connection transmission, comprises axle 3, is set in propeller boss 1 and taper key 2 on the axle; Front end at axle offers shaft spline 31, also offers the propeller boss keyway 11 that cooperates with shaft spline in the propeller boss endoporus, thereby taper key is inserted in axle is fixed with propeller boss; Characteristics of the present utility model are: also comprise tapping screw 4, on propeller boss keyway 11, have first circular hole 12, on taper key 2, have second circular hole 21 that matches with first circular hole, tapping screw and upper and lower semicircle orifice screw-thread fit are fixed on propeller boss 1 on the axle 3, thereby can prevent the problem that causes axle and propeller boss to get loose because of vibration or the reason of friction, on taper key, also have the counter sink 22 that tapping screw can pass, the head of tapping screw is dropped in the counter sink.
In the present embodiment, the breach 5 that the end of taper key 2 can fall into is offered in the position that is positioned at propeller boss keyway 11 on propeller boss 1, can protect the gib head of taper key not to be subjected to the foreign object collision like this and damages, and is simultaneously for convenience detach.
During installation, propeller boss 1 is set on the axle 3 earlier, inserts taper key 2 and upper and lower semicircle orifice 12,21 contrapositions, being fixed with tapping screw 4 gets final product again.When making dismounting, unclamp tapping screw 4, split out taper key 2 with instrument from breach 5, axle 1 withdraws from from propeller boss 3, and installation and dismounting are very convenient.
Claims (2)
1. a key connection set that is used for the mechanical connection transmission comprises axle, is set in propeller boss and taper key on the axle; Front end at axle offers shaft spline, also offers the propeller boss keyway that cooperates with shaft spline in the propeller boss endoporus, thereby taper key is inserted in axle is fixed with propeller boss; It is characterized in that: also comprise tapping screw (4), on propeller boss keyway (11), have first circular hole (12), on taper key (2), have second circular hole (21) that matches with first circular hole, tapping screw and upper and lower semicircle orifice screw-thread fit are fixed on propeller boss (1) on the axle (3), also have the counter sink (22) that tapping screw can pass on taper key.
2. the key connection set that is used for the mechanical connection transmission according to claim 1 is characterized in that: the breach (5) that the end of taper key (2) can fall into is offered in the position that is positioned at propeller boss keyway (11) on described propeller boss (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201857295U CN201486965U (en) | 2009-07-03 | 2009-07-03 | Key connecting device used in mechanical joint transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201857295U CN201486965U (en) | 2009-07-03 | 2009-07-03 | Key connecting device used in mechanical joint transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486965U true CN201486965U (en) | 2010-05-26 |
Family
ID=42425842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201857295U Expired - Fee Related CN201486965U (en) | 2009-07-03 | 2009-07-03 | Key connecting device used in mechanical joint transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486965U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979902A (en) * | 2012-10-31 | 2013-03-20 | 苏州萃智新技术开发有限公司 | Gearbox shifting fork provided with quick replaceable shifting blocks |
| CN103644189A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Connecting structure allowing adjusting of undercarriage actuator cylinder length and with locking function |
| CN107635753A (en) * | 2015-05-27 | 2018-01-26 | 株式会社电装 | Conjugant and the accelerator device using the conjugant |
| CN108639669A (en) * | 2018-07-25 | 2018-10-12 | 宁夏国励汽车动力科技有限公司 | Fastening type directive wheel |
| CN113357276A (en) * | 2021-06-30 | 2021-09-07 | 厦门众力达机械有限公司 | Key-connected transmission shaft structure |
-
2009
- 2009-07-03 CN CN2009201857295U patent/CN201486965U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979902A (en) * | 2012-10-31 | 2013-03-20 | 苏州萃智新技术开发有限公司 | Gearbox shifting fork provided with quick replaceable shifting blocks |
| CN103644189A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Connecting structure allowing adjusting of undercarriage actuator cylinder length and with locking function |
| CN107635753A (en) * | 2015-05-27 | 2018-01-26 | 株式会社电装 | Conjugant and the accelerator device using the conjugant |
| US11292207B2 (en) | 2015-05-27 | 2022-04-05 | Denso Corporation | Joined body and accelerator device using the joined body |
| CN108639669A (en) * | 2018-07-25 | 2018-10-12 | 宁夏国励汽车动力科技有限公司 | Fastening type directive wheel |
| CN113357276A (en) * | 2021-06-30 | 2021-09-07 | 厦门众力达机械有限公司 | Key-connected transmission shaft structure |
| CN113357276B (en) * | 2021-06-30 | 2022-07-22 | 厦门众力达机械有限公司 | Key-connected transmission shaft structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20180703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |