CN204755625U - Easy dismounting's tight cover that expands - Google Patents
Easy dismounting's tight cover that expands Download PDFInfo
- Publication number
- CN204755625U CN204755625U CN201520552595.1U CN201520552595U CN204755625U CN 204755625 U CN204755625 U CN 204755625U CN 201520552595 U CN201520552595 U CN 201520552595U CN 204755625 U CN204755625 U CN 204755625U
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- CN
- China
- Prior art keywords
- ring
- inner ring
- tapered collar
- outside ring
- outer loop
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to an easy dismounting's tight cover that expands, including inner ring (1), left outer loop (2), right outer loop (3), left conical ring (4), right conical ring (5), elastic component (6) and retaining member (7), bipyramid face structure that the lateral wall of inner ring (1) is reduced to both ends by the middle part for the diameter gradually, its direction of radius of inner ring (1) edge has seted up inner ring opening (11), outer loop opening (12) have been seted up along its direction of radius respectively in left side outer loop (2) and right outer loop (3), and left conical ring (4) set up between inner ring (1) and left outer loop (2), and right conical ring (5) set up between inner ring (1) and right outer loop (3), and elastic component (6) set up between the terminal surface of left outer loop (2) and right outer loop (3), and locking is connected with right conical ring (5) through retaining member (7) in left conical ring (4). The utility model has the advantages of: the reliability is high, can satisfy the big moment of torsion of transmission demand and easy dismounting lock.
Description
Technical field
The utility model relates to universal machine technical field, particularly a kind of expansion sleeve of easy accessibility.
Background technique
In common mechanical transmission, axle and the wheel (such as belt pulley, gear, sprocket wheel etc.) be enclosed within axle are all be fixed together by key, realize the object transmitted motion and produce torsion.Due to traditional key connecting dismounting inconvenience, usually handling wheel be all adopt manually beat, the mode of mechanical press mounting carries out, therefore troublesome poeration, and it is time-consuming to require great effort.In addition, the structure that axle is connected with wheel hub often needs the occasion being applied in applicable heavy load.If in order to ensure that producing enough torsion makes the scale of construction of key excessive, then can affect the mechanical strength of axle and wheel hub, and too emphasize to ensure that the mechanical strength of axle and wheel hub will make key be easy to very much damage.So, how to take into account can ensure abundant exercise transmit have again enough torsion, be the technical barrier that axle is connected with wheel hub.
Existing expansion sleeve linkage structure, normally in inner sleeve upper shed, makes opening shrink by extruding, thus with axle obvolvent, but the fitting surface of inner sleeve and overcoat is subject to shedding deformation impact, its area of contact diminishes, and easily occurs locking phenomenon loosely.
Expansion sleeve linkage structure, wheel hub and main shaft are rigid pipe, and it is limited that it contacts the frictional force produced, and cannot meet the requirement that high pulling torque transmits all the time.
Expansion sleeve is after Long-Time Service, and when dismounting safeguarded by needs, because its working environment is mostly comparatively severe, the dismounting of expansion sleeve becomes particularly difficulty.
Model utility content
The purpose of this utility model is the shortcoming overcoming prior art, provides the expansion sleeve that a kind of reliable lock is high, can meet the easy accessibility of the demand of transmitting large torque.
The purpose of this utility model is achieved through the following technical solutions: a kind of expansion sleeve of easy accessibility, comprise inner ring, left outside ring, right outside ring, left tapered collar, right tapered collar, elastic component and locking element, the outer side wall of inner ring is the biconical surface structure that diameter is reduced to two ends gradually by middle part, the madial wall of inner ring is cylindrical structure, and inner ring offers inner ring opening along its radial direction; Left outside ring and right outside ring are the loop configuration that madial wall is respectively equipped with the conical surface, and left outside ring and right outside ring offer outer ring opening along its radial direction respectively; Left tapered collar is the loop configuration that madial wall and outer side wall are provided with the conical surface, left tapered collar is arranged between inner ring and left outside ring, right tapered collar is arranged between inner ring and right outside ring, elastic component is arranged between the end face of left outside ring and right outside ring, and left tapered collar and right tapered collar are connected by locking element locks.
Described elastic component is spring or O type rubber ring.
Described locking element is single-head screw, the end face of left tapered collar is same is circumferentially provided with multiple unthreaded hole, the end face of right tapered collar is same is circumferentially provided with multiple tapped hole, and single-head screw through the unthreaded hole on left tapered collar, and is connected by screw-thread fit with the tapped hole in right tapered collar.
The inwall of described inner ring is also fixed with rubber sleeve, rubber sleeve also has rubber sleeve opening.
Described rubber sleeve opening and inner ring register.
The utility model has the following advantages:
1, the utility model need not spline on axle, the mechanical strength of axle can not be damaged, but adopt conical surface locking, by arranging left tapered collar and right tapered collar between inner ring and left and right outer shroud respectively, make inner ring internal diameter diminish after locking thus closely cooperate with axle and axle, coupling reliability is high.
Only need when 2, installing to lock locking element, can locking be completed, simple to operate, during dismounting, only need loosening locking element, under the effect of elastic component elastic force, outside left and right, hoop both sides are moved, thus promote to move outside left and right taper hoop, inner ring internal diameter is made to become large, can complete dismounting, whole disassembly process is simple, convenient, and laborsaving.
3, between inner ring and main shaft, rubber sleeve is set, increases the frictional force between inner ring and main shaft, make it meet the requirement of high pulling torque transmission.
Accompanying drawing explanation
Fig. 1 is side structure schematic diagram of the present utility model;
Fig. 2 is that in Fig. 1, locking element is the A-A sectional structure schematic diagram of spring;
Fig. 3 is that in Fig. 1, locking element is the A-A sectional structure schematic diagram of O type rubber ring;
In figure: 1-inner ring, the left outside ring of 2-, the right outside ring of 3-, the left tapered collar of 4-, the right tapered collar of 5-, 6-elastic component, 7-locking element, 8-unthreaded hole, 9-tapped hole, 10-rubber sleeve, 11-inner ring opening, 12-outer ring opening, 13-rubber sleeve opening.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As depicted in figs. 1 and 2, a kind of expansion sleeve of easy accessibility, comprise inner ring 1, left outside ring 2, right outside ring 3, left tapered collar 4, right tapered collar 5, elastic component 6 and locking element 7, the outer side wall of inner ring 1 is the biconical surface structure that diameter is reduced to two ends gradually by middle part, the madial wall of inner ring 1 is cylindrical structure, and inner ring 1 offers inner ring opening 11 along its radial direction; Left outside ring 2 and right outside ring 3 are respectively equipped with the loop configuration of the conical surface for madial wall, and left outside ring 2 and right outside ring 3 offer outer ring opening 12 along its radial direction respectively; Left tapered collar 4 is the loop configuration that madial wall and outer side wall are provided with the conical surface, left tapered collar 4 is arranged between inner ring 1 and left outside ring 2, right tapered collar 5 is arranged between inner ring 1 and right outside ring 3, elastic component 6 is arranged between left outside ring 2 and the end face of right outside ring 3, and left tapered collar 4 and right tapered collar 5 are connected by locking element 7 locks.
Further, as shown in Figures 2 and 3, described elastic component 6 is spring or O type rubber ring.
Further, described locking element 7 is single-head screw, the end face of left tapered collar 4 is same is circumferentially provided with multiple unthreaded hole 8, the end face of right tapered collar 5 is same is circumferentially provided with multiple tapped hole 9, single-head screw through the unthreaded hole 8 on left tapered collar 4, and is connected by screw-thread fit with the tapped hole 9 in right tapered collar 5.
Further, the inwall of described inner ring 1 is also fixed with rubber sleeve 10, rubber sleeve 10 also has rubber sleeve opening 13, described rubber sleeve opening 13 aligns with inner ring opening 11, increase the frictional force between inner ring 1 and main shaft, make it meet the requirement of high pulling torque transmission.
Claims (5)
1. the expansion sleeve of an easy accessibility, it is characterized in that: comprise inner ring (1), left outside ring (2), right outside ring (3), left tapered collar (4), right tapered collar (5), elastic component (6) and locking element (7), the outer side wall of inner ring (1) is the biconical surface structure that diameter is reduced to two ends gradually by middle part, the madial wall of inner ring (1) is cylindrical structure, and inner ring (1) offers inner ring opening (11) along its radial direction; Left outside ring (2) and right outside ring (3) are respectively equipped with the loop configuration of the conical surface for madial wall, and left outside ring (2) and right outside ring (3) offer outer ring opening (12) along its radial direction respectively; Left tapered collar (4) is provided with the loop configuration of the conical surface for madial wall and outer side wall, left tapered collar (4) is arranged between inner ring (1) and left outside ring (2), right tapered collar (5) is arranged between inner ring (1) and right outside ring (3), elastic component (6) is arranged between the end face of left outside ring (2) and right outside ring (3), and left tapered collar (4) and right tapered collar (5) are connected by locking element (7) locks.
2. the expansion sleeve of a kind of easy accessibility according to claim 1, is characterized in that: described elastic component (6) is spring or O type rubber ring.
3. the expansion sleeve of a kind of easy accessibility according to claim 1, it is characterized in that: described locking element (7) is single-head screw, the end face of left tapered collar (4) is same is circumferentially provided with multiple unthreaded hole (8), the end face of right tapered collar (5) is same is circumferentially provided with multiple tapped hole (9), single-head screw through the unthreaded hole (8) on left tapered collar (4), and is connected by screw-thread fit with the tapped hole (9) in right tapered collar (5).
4. the expansion sleeve of a kind of easy accessibility according to claim 1, is characterized in that: the inwall of described inner ring (1) is also fixed with rubber sleeve (10), rubber sleeve (10) also has rubber sleeve opening (13).
5. the expansion sleeve of a kind of easy accessibility according to claim 4, is characterized in that: described rubber sleeve opening (13) aligns with inner ring opening (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552595.1U CN204755625U (en) | 2015-07-28 | 2015-07-28 | Easy dismounting's tight cover that expands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552595.1U CN204755625U (en) | 2015-07-28 | 2015-07-28 | Easy dismounting's tight cover that expands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755625U true CN204755625U (en) | 2015-11-11 |
Family
ID=54470335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552595.1U Active CN204755625U (en) | 2015-07-28 | 2015-07-28 | Easy dismounting's tight cover that expands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485185A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Quick-connection large-torque flange |
| CN107606165A (en) * | 2017-07-27 | 2018-01-19 | 丹东锦达密封有限公司 | Mechanical seal chamber throttling arrangement |
-
2015
- 2015-07-28 CN CN201520552595.1U patent/CN204755625U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485185A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Quick-connection large-torque flange |
| CN107606165A (en) * | 2017-07-27 | 2018-01-19 | 丹东锦达密封有限公司 | Mechanical seal chamber throttling arrangement |
| CN107606165B (en) * | 2017-07-27 | 2023-07-18 | 丹东锦达密封有限公司 | Throttle device for mechanical seal cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |