CN204897048U - A from locking -type axial locking device for drum presss from both sides tightly - Google Patents
A from locking -type axial locking device for drum presss from both sides tightly Download PDFInfo
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- CN204897048U CN204897048U CN201520521739.7U CN201520521739U CN204897048U CN 204897048 U CN204897048 U CN 204897048U CN 201520521739 U CN201520521739 U CN 201520521739U CN 204897048 U CN204897048 U CN 204897048U
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- steel ball
- self
- type axial
- locking device
- inner conical
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Abstract
The utility model relates to a from locking -type axial locking device for drum presss from both sides tightly, establish the endotheca in the overcoat including overcoat and cover, the locking axle of drum inserts endotheca locking, still includes interior toper cover, interior toper ways is located between overcoat and the endotheca to with endotheca clearance fit, the endotheca lateral surface is equipped with the boss that is used for having the tip butt of the interior conical surface with interior toper cover, it has a plurality of steel balls evenly to inlay in the endotheca, a plurality of steel balls are located the same face of indulging, and just the interior conical surface with interior toper cover contacts. Compared with the prior art, the utility model has the advantages of convenient and reliable, be suitable for frequent dismantlement reel shaft to the adjustment.
Description
Technical field
The utility model relates to a kind of latching device, especially relates to a kind of self-locking type axial locking device for drum clamping.
Background technology
Axial locking device is applied all widely at the production facilities of optical, electrical cable production facilities and other multiple industry.Traditional axial locking device is the most common with nut locking device, holding screw sleeve locking apparatus and guide latching device, wherein:
1, nut locking device: axle head screw thread often designs long, and pitch is smaller, easily causes mounting or dismounting efficiency low or cause the exposed long and local damage of fine thread that intensity is not high.
2, holding screw sleeve locking apparatus: in order to ensure the reliability of locking, only have increase screw screw power, like this, both added dismounting difficulty, turn increased the possibility of axial plane damage, screw and cover screw thread failure.
3, guide latching device: for entering lockhole on axle and the axial locking device of locating by elasticity locating detent in cover, feature is that reliability is high, but axially adjusts poor continuity.
In sum, traditional axial locking device is not too suitable for frequent dismounting or axially adjustment, and some reliable lock are not high, therefore need to design a kind of new axial locking device.
Utility model content
The purpose of this utility model is exactly provide a kind of convenient and reliable, self-locking type axial locking device for drum clamping of being suitable for frequent dismounting or axially adjustment to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of self-locking type axial locking device for drum clamping, comprise overcoat and be set in the inner sleeve in overcoat, the lock shaft of drum inserts interior cover locking, also comprise inner conical cover, described inner conical cover is sheathed between jacket and inner sleeve, and with inner sleeve free-running fit, described inner sleeve lateral surface is provided with the boss of the end abutment for having inner conical surface with inner conical cover, evenly be inlaid with multiple steel ball in described inner sleeve, described multiple steel ball is positioned on same vertical face, and contacts with the inner conical surface that inner conical overlaps.
The public inscribed circle diameter of described multiple steel ball is less than the diameter of lock shaft, and the public circumcircle diameter of multiple steel ball is greater than the interior diameter on the inner conical cover face of cylinder.
Described steel ball is provided with 3-4.
Described steel ball is quenching steel ball.
The Compress Spring for producing precompressed compression in using at device between steel ball and inner conical surface is also provided with between described overcoat and inner sleeve.
Described Compress Spring is cylindroid helical-coil compression spring.
Described inner sleeve end sleeve is provided with draws cap.
Described inner sleeve and drawing between cap as interference fit, pressure assemble.
Described overcoat and inner conical inner room are interference fit, pressure assembles.
Compared with prior art, the utility model has the following advantages:
(1) setting of the utility model design of inner conical surface of being overlapped by inner conical and quenching steel ball achieves axial self-locking function, convenient and reliable, is suitable for frequent dismounting or axially adjustment.
(2) the utility model is provided with enough steel ball numbers, ensure that the validity of locking.
(3) the utility model is also provided with Compress Spring between overcoat and inner sleeve, makes effectively to contact between steel ball with inner conical surface, and produces suitable precompressed compression between, and flexible operation.Which avoid in device use, that can not lock because there is gap between steel ball and inner conical surface may; Meanwhile, when it also avoid axial force instability, steel ball and inner conical surface Intermittent Contact, thus cause steel ball progressively to retreat, make the possibility that locking was lost efficacy.And the compressibility of spring for removing self-locking portablely, simplifying the operation provides condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of self-locking type axial locking device for drum clamping, the inner sleeve 4 comprising overcoat 1 and be set in overcoat 1, the lock shaft of drum inserts inner sleeve 4 and locks, also comprise inner conical cover 2, inner conical cover 2 is sheathed between overcoat 1 and inner sleeve 4, and with inner sleeve 4 free-running fit, the end face of overcoat 1 and inner conical cover 2 is slightly more outstanding than the end face of inner sleeve 4.
Inner sleeve 4 lateral surface is provided with for overlapping with inner conical the boss that 2 have the end abutment of inner conical surface 21, is evenly inlaid with multiple steel ball 3 in inner sleeve 4, and multiple steel ball 3 is positioned on same vertical face, and contacts with the inner conical surface 21 that inner conical overlaps 2.Inner conical cover 2 is the main bearing member of this device, has higher superficial hardness.
The public inscribed circle diameter of multiple steel ball 3 is less than the diameter of lock shaft, and the public circumcircle diameter of multiple steel ball 3 is greater than the interior diameter that inner conical overlaps 2 faces of cylinder 22.Steel ball 3 is quenching steel ball.With the increase of axial force, the number of steel ball should suitably increase, for the axle that superficial hardness is relatively low, be unlikely to because load too concentrates and cause surface tear, but with regard to line cable industry dish tool is installed, axial force is less satellite force in most cases, and therefore, steel ball 3 is provided with 3-4 and is advisable.During as larger axis to being installed of power, steel ball number should suitably increase, and needs the superficial hardness suitably improving lock shaft.
Inner sleeve 4 end sleeve is provided with draws cap 6.Inner sleeve 4 and draw between cap 6, overcoat 1 overlaps with inner conical that 2 are interference fit, pressure assembles.
The principle of work of above-mentioned self-locking type axial locking device is:
The utility model device is according to the locking phenomenon design in mechanics, and when condition of self-locking meets, external force is larger, and object keeps static ability stronger.The core component of the utility model device is inner conical cover, and its inner conical surface need design suitable angle, with the reliability of assurance device reverse self-locking.When axial force acts on the outer face of device overcoat and inner conical cover, inner conical cover makes steel ball produce the trend of rolling along axle and sliding by the normal force of inner conical surface and the effect of steel ball contact point.In order to realize the reverse self-locking of this device, inner conical cover inner conical surface angle of slope must meet following two conditions: steel ball relative axle rolling self-locking of, quenching; Two, quenching steel ball relative axle slip self-locking.
Embodiment 2
As shown in Figure 1, the self-locking type axial locking device for drum clamping that the present embodiment provides, between overcoat 1 and inner sleeve 4, be also provided with Compress Spring 5, Compress Spring 5 is cylindroid helical-coil compression spring.This Compress Spring 5 plays a part very important in a device, makes effectively to contact between steel ball 3 with inner conical surface 21, and produce suitable precompressed compression between in using at device, and flexible operation.Which avoid in device use, that can not lock because there is gap between steel ball and inner conical surface may; Meanwhile, when it also avoid axial force instability, steel ball and inner conical surface Intermittent Contact, thus cause steel ball progressively to retreat, make the possibility that locking was lost efficacy.And the compressibility of spring for removing self-locking portablely, simplifying the operation provides condition.
Claims (9)
1. the self-locking type axial locking device for drum clamping, comprise overcoat (1) and be set in the inner sleeve (4) in overcoat (1), the lock shaft of drum inserts inner sleeve (4) locking, it is characterized in that, also comprise inner conical cover (2), described inner conical cover (2) is sheathed between overcoat (1) and inner sleeve (4), and with inner sleeve (4) free-running fit, described inner sleeve (4) lateral surface is provided with the boss of the end abutment for having inner conical surface (21) with inner conical cover (2), multiple steel ball (3) is evenly inlaid with in described inner sleeve (4), described multiple steel ball (3) is positioned on same vertical face, and contact with the inner conical surface (21) of inner conical cover (2).
2. the self-locking type axial locking device for drum clamping according to claim 1, it is characterized in that, the public inscribed circle diameter of described multiple steel ball (3) is less than the diameter of lock shaft, and the public circumcircle diameter of multiple steel ball (3) is greater than the interior diameter on inner conical cover (2) face of cylinder (22).
3. the self-locking type axial locking device for drum clamping according to claim 1, it is characterized in that, described steel ball (3) is provided with 3-4.
4. the self-locking type axial locking device for drum clamping according to claim 1, is characterized in that, described steel ball (3) is quenching steel ball.
5. the self-locking type axial locking device for drum clamping according to claim 1, it is characterized in that, between described overcoat (1) and inner sleeve (4), being also provided with the Compress Spring (5) for producing precompressed compression in using at device between steel ball (3) and inner conical surface (21).
6. the self-locking type axial locking device for drum clamping according to claim 5, it is characterized in that, described Compress Spring (5) is cylindroid helical-coil compression spring.
7. the self-locking type axial locking device for drum clamping according to claim 1, it is characterized in that, described inner sleeve (4) end sleeve is provided with draws cap (6).
8. the self-locking type axial locking device for drum clamping according to claim 7, is characterized in that, described inner sleeve (4) is that interference fit, pressure assemble with drawing between cap (6).
9. the self-locking type axial locking device for drum clamping according to claim 1, is characterized in that, be interference fit between described overcoat (1) and inner conical cover (2), pressure assembles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521739.7U CN204897048U (en) | 2015-07-17 | 2015-07-17 | A from locking -type axial locking device for drum presss from both sides tightly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521739.7U CN204897048U (en) | 2015-07-17 | 2015-07-17 | A from locking -type axial locking device for drum presss from both sides tightly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204897048U true CN204897048U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520521739.7U Expired - Fee Related CN204897048U (en) | 2015-07-17 | 2015-07-17 | A from locking -type axial locking device for drum presss from both sides tightly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204897048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973464A (en) * | 2015-07-17 | 2015-10-14 | 上海鼎凡电工机械股份有限公司 | Self-locking type axial locking device for clamping wire coil |
-
2015
- 2015-07-17 CN CN201520521739.7U patent/CN204897048U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973464A (en) * | 2015-07-17 | 2015-10-14 | 上海鼎凡电工机械股份有限公司 | Self-locking type axial locking device for clamping wire coil |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180717 |