CN101307792A - Key-free chain sprocket connecting mechanism - Google Patents
Key-free chain sprocket connecting mechanism Download PDFInfo
- Publication number
- CN101307792A CN101307792A CNA2008101230359A CN200810123035A CN101307792A CN 101307792 A CN101307792 A CN 101307792A CN A2008101230359 A CNA2008101230359 A CN A2008101230359A CN 200810123035 A CN200810123035 A CN 200810123035A CN 101307792 A CN101307792 A CN 101307792A
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- key
- connecting mechanism
- free chain
- chain sprocket
- hole
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Abstract
The invention relates to a mechanism for connecting a keyless sprocket, comprising a sprocket and a shaft. The middle of the sprocket is provided with a conical shaft hole, the shaft is provided with a conical end part, and the conical end part and the conical shaft hole are connected in tight fit. The mechanism for connecting the keyless sprocket has the advantages of good transmission effect and simple connection way of relative keys in assembly and disassembly.
Description
Technical field
The present invention relates to a kind of chain sprocket connecting mechanism, be used for being in transmission connection of sprocket wheel and axle.
Background technique
Being connected with keyway with key is the transmission shaft of the most normal application at present and the Placement of driving element, and it is meant that mainly the counterpart at transmission shaft and driving element draws keyway respectively, and uses a key and insert keyway both are connected.There are a series of shortcomings in this key Placement, adopts clearance to cooperate as key and keyway, and when being subjected to an end thrust between tradition axle and driving element, driving element separates with key easily; Can not reach no back clearance transmission etc.
In the prior art, above-mentioned key Placement is adopted in transmission between the sprocket wheel of elevator and the axle, not only transmission effect is bad, and in narrower space, when connecting sprocket wheel with key, install and dismantle and all can compare difficulty, sometimes, sprocket hole heat treated or spindle nose need just can reach installation requirement after the cryogenic treatment; If produce oxidation and corrosion near the key, dismounting is difficulty more.
Summary of the invention
Technical problem to be solved by this invention provides a kind of key-free chain sprocket connecting mechanism, and sprocket wheel cooperates closely with axle, and transmission is effective, installation and removal are simple.
For solving above technical problem, the present invention takes following technological scheme:
A kind of key-free chain sprocket connecting mechanism comprises sprocket wheel, axle, and the middle part of described sprocket wheel has the axis hole of taper, and axle has tapered end, and tapered end is closely connected mutually with the axis hole of taper.
Preferably, the tapering of described axis hole is spent smaller or equal to 15 greater than 0 degree.
Described key-free chain sprocket connecting mechanism also comprises the pressing plate that is removably disposed in the sprocket wheel outside, is threaded mutually by first threaded fastener between pressing plate and the tapered end.
Pressing plate is threaded mutually with sprocket wheel.Offer on the sprocket wheel along equally distributed four second tapped holes of its circumferencial direction, offer on the pressing plate and four second corresponding the 3rd unthreaded holes of tapped hole, second threaded fastener passes the 3rd unthreaded hole and is threaded mutually with second tapped hole.
Described key-free chain sprocket connecting mechanism also comprises the latch that is used to prevent that first threaded fastener is loosening, first threaded fastener pass latch, pressing plate and with first tapped hole that is opened in tapered end mutually screw-thread fit connect.
Also offer removal hole on the described pressing plate, and the both sides of removal hole are respectively the end face of latch and tapered end.
The shaft axis of described removal hole aiming axis.
Because the enforcement of above technological scheme, the present invention compared with prior art has following advantage:
The axis hole of sprocket wheel is taper, and axle has tapered end, the inner conical surface of axis hole and the closely combination mutually of the male cone (strobilus masculinus) of tapered end, mode by interior male cone (strobilus masculinus) combination connects sprocket wheel and axle, have good auto-lock function, axle combines closely with the axis hole of sprocket wheel, is difficult for getting rusty with oxidized.This key-free chain sprocket connecting mechanism transmission is effective, the relative key Placement of installation and removal is simple.
Description of drawings
Fig. 1 is the structural representation of sprocket wheel of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the structural representation of latch of the present invention;
Fig. 4 is the structural representation of pressing plate of the present invention;
Fig. 5 is the structural representation of axle of the present invention;
Fig. 6 is a structural representation of the present invention;
Fig. 7 removes structural representation behind the latch for the present invention;
Wherein:
1, sprocket wheel; 2, axle; 3, pressing plate; 4, latch; 5, first threaded fastener; 6, second threaded fastener; 10,, second tapped hole; 20, first tapped hole; 30, removal hole; 31, the 3rd unthreaded hole; 32, the 4th unthreaded hole; 40, the 5th unthreaded hole; 8, demounting bolt; 11, axis hole; 21, tapered end.
Embodiment
The present invention will be further described in detail below in conjunction with specific embodiment.
Shown in Fig. 1～7, mainly comprise sprocket wheel 1, axle 2, pressing plate 3, latch 4, first threaded fastener 5, second threaded fastener 6 according to the key-free chain sprocket connecting mechanism of present embodiment, wherein, first threaded fastener 5, second threaded fastener 6 are bolt.
Described sprocket wheel 1 is set on axle 2 the end, and the middle part of sprocket wheel 1 has taper axis hole 11, and 2 on axle has tapered end 21, the male cone (strobilus masculinus) closely combination mutually of the inner conical surface of axis hole 11 and tapered end 21.Wherein, the tapering of axis hole 11 is between 2～12 degree.Mode by interior male cone (strobilus masculinus) combination connects sprocket wheel 1 and axle 2, has good auto-lock function, replace the key Placement by this way, not only make installation and removal convenient, and interior male cone (strobilus masculinus) closely cooperates and can prevent that key or axle from getting rusty or oxidized and influence transmission effect and loading and unloading.
On sprocket wheel 1, also offer along equally distributed four second tapped holes 10 of its circumferencial direction, pressing plate 3 is being provided with the 3rd unthreaded hole 31 with second tapped hole, 10 corresponding positions, like this, four second threaded fasteners 6 pass the 3rd unthreaded hole 31, second tapped hole 10 successively and realize being threaded of pressing plate 3 and sprocket wheel 6.
Latch 4 is to be used to prevent that first threaded fastener 5 is loosening and to be provided with, offer along the circumferential direction equally distributed three the 5th unthreaded holes 40 on it, pressing plate 3 is provided with three the 4th unthreaded holes 32 in the relevant position, first threaded fastener 5 passes the 5th unthreaded hole 40, the 4th unthreaded hole 32 successively, and be opened in tapered end 21 end faces on first tapped hole 20 mutually screw-thread fit connect.
By the setting of pressing plate 3 and latch 4, further guarantee the combining closely of male cone (strobilus masculinus) of the inner conical surface of axis hole 11 and tapered end 21.
In addition, also be provided with removal hole 30 at the middle part of pressing plate 3, the both sides of removal hole 30 are respectively the end face of latch 4 and axle 2, and removal hole 30 has been aimed at the shaft axis of axle 2.
The key-free chain sprocket connecting mechanism of present embodiment compare existing key Placement have transmission effective, mount and dismount simple advantage, its installation steps are specific as follows:
(1), sprocket wheel 6 is installed on the axle 7;
(2), connect pressing plate 5 and sprocket wheel 6 with 4 M16 bolts;
(3), connect latch 4 and pressing plate 5, and this bolt is screwed into first tapped hole 20 of axle 7 end faces, male cone (strobilus masculinus) engages fully in making with the bolt (first threaded fastener 5) of 3 M16;
(4), after tight a bolt (first threaded fastener 5), three angles of latch 4 are bent, and the folded up portion of latch 4 realizes locking with the head chucking of bolt, prevents bolt looseness.
Determine the latch lock(ing) bolt, the installation of key-free chain sprocket connecting mechanism enters working state.
The unloading process of key-free chain sprocket connecting mechanism is as follows:
(1), 3 bolts removing lockplate 4 and connect;
(2), in the removal hole 30 of pressing plate 3, be screwed into the demounting bolt 8 of M20, rotation M20 demounting bolt 8 holds out against spindle nose 2, sprocket wheel 6 unclamps, dismounting is finished.
In sum, key-free chain sprocket connecting mechanism of the present invention can be realized being in transmission connection of sprocket wheel and axle very easily.In addition, gear, propeller cavitation, traction sheave etc. all can use this no key Placement.
Claims (8)
1, a kind of key-free chain sprocket connecting mechanism, comprise sprocket wheel (1), axle (2), it is characterized in that: the middle part of described sprocket wheel (1) has the axis hole (11) of taper, described axle (2) has tapered end (21), and described tapered end (21) is closely connected mutually with the axis hole (11) of described taper.
2, key-free chain sprocket connecting mechanism according to claim 1 is characterized in that: the tapering of described axis hole (11) is spent smaller or equal to 15 greater than 0 degree.
3, key-free chain sprocket connecting mechanism according to claim 1, it is characterized in that: described key-free chain sprocket connecting mechanism also comprises the pressing plate (3) that is removably disposed in described sprocket wheel (1) outside, is threaded mutually by first threaded fastener (5) between described pressing plate (3) and the described tapered end (21).
4, key-free chain sprocket connecting mechanism according to claim 3 is characterized in that: described pressing plate (3) is threaded mutually with described sprocket wheel (1).
5, key-free chain sprocket connecting mechanism according to claim 4, it is characterized in that: offer on the described sprocket wheel (1) along equally distributed four second tapped holes of its circumferencial direction (10), offer on the described pressing plate (3) and corresponding the 3rd unthreaded holes of described four second tapped holes (10) (31), second threaded fastener (6) passes described the 3rd unthreaded hole (31) and is threaded mutually with described second tapped hole (10).
6, key-free chain sprocket connecting mechanism according to claim 3, it is characterized in that: described key-free chain sprocket connecting mechanism also comprises the latch (4) that is used to prevent that described first threaded fastener (5) is loosening, described first threaded fastener (5) pass described latch (4), described pressing plate (3) and with first tapped hole (20) that is opened in described tapered end (21) mutually screw-thread fit connect.
7, key-free chain sprocket connecting mechanism according to claim 6, it is characterized in that: also offer removal hole (30) on the described pressing plate (3), and the both sides of described removal hole (30) are respectively the end face of described latch (4) and described tapered end (21).
8, key-free chain sprocket connecting mechanism according to claim 7 is characterized in that: described removal hole (30) is aimed at the shaft axis of described axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101230359A CN101307792A (en) | 2008-06-19 | 2008-06-19 | Key-free chain sprocket connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101230359A CN101307792A (en) | 2008-06-19 | 2008-06-19 | Key-free chain sprocket connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101307792A true CN101307792A (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101230359A Pending CN101307792A (en) | 2008-06-19 | 2008-06-19 | Key-free chain sprocket connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101307792A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915256A (en) * | 2010-08-12 | 2010-12-15 | 中国船舶重工集团公司第七○三研究所 | High-rotation-speed impeller and rotor linking mechanism |
| CN102539149A (en) * | 2012-01-10 | 2012-07-04 | 淮南长壁煤矿机械有限责任公司 | Sprocket shaft assembly test bench |
| CN103016005A (en) * | 2012-12-11 | 2013-04-03 | 三一重型装备有限公司 | Driven wheel device and roadheader shovel plate part structure with same |
| CN105156486A (en) * | 2015-09-14 | 2015-12-16 | 福建成达鼓风机有限公司 | Power drive device for revolving member |
| CN105621195A (en) * | 2016-03-15 | 2016-06-01 | 苏州飞格立工程塑料有限公司 | Connecting device for elevator roller and step part |
-
2008
- 2008-06-19 CN CNA2008101230359A patent/CN101307792A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915256A (en) * | 2010-08-12 | 2010-12-15 | 中国船舶重工集团公司第七○三研究所 | High-rotation-speed impeller and rotor linking mechanism |
| CN102539149A (en) * | 2012-01-10 | 2012-07-04 | 淮南长壁煤矿机械有限责任公司 | Sprocket shaft assembly test bench |
| CN102539149B (en) * | 2012-01-10 | 2014-11-26 | 久益环球（淮南）采矿设备有限公司 | Sprocket shaft assembly test bench |
| CN103016005A (en) * | 2012-12-11 | 2013-04-03 | 三一重型装备有限公司 | Driven wheel device and roadheader shovel plate part structure with same |
| CN105156486A (en) * | 2015-09-14 | 2015-12-16 | 福建成达鼓风机有限公司 | Power drive device for revolving member |
| CN105156486B (en) * | 2015-09-14 | 2018-11-06 | 福建成达鼓风机有限公司 | A kind of rotating member actuating unit |
| CN105621195A (en) * | 2016-03-15 | 2016-06-01 | 苏州飞格立工程塑料有限公司 | Connecting device for elevator roller and step part |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081119 |