CN104019108A - Double-eccentric crank thread anti-loosening device - Google Patents
Double-eccentric crank thread anti-loosening device Download PDFInfo
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- CN104019108A CN104019108A CN201410226124.1A CN201410226124A CN104019108A CN 104019108 A CN104019108 A CN 104019108A CN 201410226124 A CN201410226124 A CN 201410226124A CN 104019108 A CN104019108 A CN 104019108A
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- nut
- crank
- eccentric
- cone shape
- loosening
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Abstract
The invention provides a double-eccentric crank thread anti-loosening device which comprises a threaded lead screw sleeved with a nut matched with the threaded lead screw. The device further comprises a crank, one end of the crank is provided with threads, the side face of the nut is provided with a taper hole, the small-aperture face of the taper hole and the outer side face of the nut are located on the same plane, and the end face of the top of the threaded lead screw is provided with an eccentric hole; the end, provided with the threads, of the crank penetrates through the taper hole, extends out of the nut and is locked through a locking nut, and the other end of the crank is inserted into the eccentric hole. The device is good in anti-loosening effect and easy to machine and use. The mechanism that when the eccentric crank rotates along with the nut, the crank will move in a reciprocating mode along with the nut is fully used, the moving tendency of the nut is prevented structurally, and accordingly the aim of completely preventing the threads from loosening is achieved. As for some large elements, particularly in some occasions where vibration impact is large, thread loosening caused by repeat vibration impact is effectively prevented, and a good use effect is achieved.
Description
Technical field
The invention belongs to technical field of metallurgical equipment, relate in particular to and be applicable to a kind of two eccentric mechanism screw retentions of occasion that jerk is larger.
Background technique
Existing nut anti-looseness technology has had a variety of, but high strength, large load and repeatedly concussion impact the locking of place large-scale nut, remain a critical technical barrier.Existing several locking mode is as adopted large-scale round nut, nut pad, and it processes comparatively difficulty, and its nut pad reliability under high-strength impact load is repeatedly not high; The methods such as double nut or internal thread locking screw also easily produce loosening under the effect of larger axial force.
Summary of the invention
For the problems referred to above, the invention provides good, the easy processing of anti-loosing effect, implement to be easy to eccentric mechanism screw retention.
For achieving the above object, the present invention by the following technical solutions, two eccentric mechanism screw retentions, comprise threaded screw rod, the sheathed nut being mated on threaded screw rod, it also comprises crank, one end of this crank is provided with screw thread, described nut side is provided with cone shape hole, and the face of this cone shape hole small aperture and nut outer side surface are positioned on the same face, and the top end face of described line screw mandrel is provided with eccentric opening;
Described threaded one end of crank tool extends to outside nut and locks by locking nut through cone shape hole, and the other end of described crank is inserted in eccentric opening.
Described eccentric opening is two, and is symmetricly set on threaded screw rod longitudinal center line both sides.
Described crank is also two, and the locking nut being engaged on crank is two, and the cone shape hole that correspondence is located at nut side is also two.
Two described cone shape holes are on the same bus that is positioned at nut.
The present invention adopts technique scheme, mainly contains following advantage: anti-loosing effect of the present invention is good, and easily processing, enforcement are easily; When making full use of eccentric mechanism and rotating with nut, the mechanism that crank can do relatively reciprocating motion with nut, stops the movement tendency of nut from structure, thereby thoroughly reaches the object of locking thread.For some large-scale workpieces, especially in the larger occasion of some jerks, effectively prevent the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
Below with reference to accompanying drawing, the present invention is described in further details.
Brief description of the drawings
Fig. 1 is two eccentric mechanism screw retention structural representations;
Fig. 2 is two eccentric mechanism screw retention plan structure schematic diagram;
1, locking nut; 2, threaded screw rod; 3, crank; 4, nut; 5, eccentric opening; 6, cone shape hole.
Embodiment
Further two eccentric mechanism screw retentions are described in detail below in conjunction with drawings and Examples.
Embodiment 1
Two eccentric mechanism screw retentions as shown in Figure 1, 2, comprise threaded screw rod 2, the sheathed nut being mated 4 on threaded screw rod 2, also comprise crank 3, one end of this crank 3 is provided with screw thread, described nut 4 sides are provided with cone shape hole 6, and the face of these cone shape hole 6 small apertures and nut 4 outer side surfaces are positioned on the same face, and the top end face of described line screw mandrel 2 is provided with eccentric opening 5;
Described crank 3 threaded one end of tool extend to outside nut 4 and lock by locking nut 1 through cone shape hole 6, and the other end of described crank 3 is inserted in eccentric opening 5.
After nut 4 and threaded screw rod 2 tighten, crank 3 is deep into the inside of nut 4 by cone shape hole 6, and is inserted into eccentric opening 5, then use locking nut 1 to lock locked, thereby crank 3 reach the object of nut spline, in dismounting, first loosening locking nut 1, at rotating nut 4; When the present invention makes full use of eccentric mechanism and rotates with nut, the mechanism that outside can do relatively reciprocating motion with nut, stops the movement tendency of nut from structure, thereby thoroughly reaches the object of locking thread.For some large-scale workpieces, especially in the larger occasion of some jerks, effectively prevent the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
Embodiment 2
In the above-described embodiments, as Fig. 1, two eccentric mechanism screw retentions described in 2, crank 3 is also two, the locking nut 1 being engaged on crank 3 is two, cone shape hole 6 and eccentric opening 5 that correspondence is located at nut 4 sides are also two, eccentric opening 5 is symmetricly set on threaded screw rod 2 center line both sides, cone shape hole 6 is on the same bus that is positioned at nut 4, one end of two cranks 3 packs in cone shape hole 6, the other end packs in eccentric opening 5, in the time that nut 4 is rotated in place, use locking nut 1 to lock locked, thereby crank 3 reaches the object of nut 4 splines, after adopting two cranks 3 and symmetrical eccentric opening 5 better to tighten nut 4 and threaded screw rod 2, carry out locked, in the time that two cranks 3 are arranged symmetrically with, always there is the whorl side of a crank 3 to bounce back along cone shape hole 6, restrain by locking nut 1 locking the trend that it is retracted, thereby reach down the object of nut 2 splines, when making full use of eccentric mechanism and rotating with nut, the mechanism that outside can do relatively reciprocating motion with nut, stop the movement tendency of nut from structure, thereby thoroughly reach the object of locking thread.For some large-scale workpieces, especially in the larger occasion of some jerks, effectively prevent the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
In sum, the invention provides a kind of two eccentric mechanism screw retention, anti-loosing effect is good, and easily processing, enforcement are easily; When making full use of eccentric mechanism and rotating with nut, the mechanism that outside can do relatively reciprocating motion with nut, stops the movement tendency of nut from structure, thereby thoroughly reaches the object of locking thread.For some large-scale workpieces, especially in the larger occasion of some jerks, effectively prevent the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
More than exemplifying is only to illustrate of the present invention, does not form the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention all belongs to protection scope of the present invention.
Claims (4)
1. pair eccentric mechanism screw retention, comprise threaded screw rod (2), the upper sheathed nut being mated (4) of threaded screw rod (2), it is characterized in that, also comprise crank (3), one end of this crank (3) is provided with screw thread, and described nut (4) side is provided with cone shape hole (6), the face of this cone shape hole (6) small aperture and nut (4) outer side surface are positioned on the same face, and the top end face of described line screw mandrel (2) is provided with eccentric opening (5);
Described threaded one end of crank (3) tool extends to outside nut (4) and locks by locking nut (1) through cone shape hole (6), and the other end of described crank (3) is inserted in eccentric opening (5).
2. according to claim 1 pair of eccentric mechanism screw retention, is characterized in that, described eccentric opening (5) is two, and is symmetricly set on threaded screw rod (2) longitudinal center line both sides.
3. according to claim 2 pair of eccentric mechanism screw retention, it is characterized in that, described crank (3) is also two, and the locking nut (1) being engaged on crank (3) is two, and the cone shape hole (6) that correspondence is located at nut (4) side is also two.
4. according to claim 2 pair of eccentric mechanism screw retention, is characterized in that, described two cone shape holes (6) are positioned on the same bus of nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226124.1A CN104019108B (en) | 2014-05-27 | 2014-05-27 | Two eccentric mechanism screw retention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226124.1A CN104019108B (en) | 2014-05-27 | 2014-05-27 | Two eccentric mechanism screw retention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019108A true CN104019108A (en) | 2014-09-03 |
| CN104019108B CN104019108B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410226124.1A Active CN104019108B (en) | 2014-05-27 | 2014-05-27 | Two eccentric mechanism screw retention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104019108B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB886872A (en) * | 1959-04-17 | 1962-01-10 | Sulzer Ag | Screw-locking devices |
| SU1548542A1 (en) * | 1988-05-16 | 1990-03-07 | С.Г.Кузовников | Threaded connection |
| DE29706197U1 (en) * | 1997-04-08 | 1997-08-21 | Haller Gebhard | Securing device for cap screws |
| CN201714790U (en) * | 2010-04-26 | 2011-01-19 | 宁波东港紧固件制造有限公司 | Pentagonal flange face semi-thread bolt device |
| CN202165372U (en) * | 2011-08-09 | 2012-03-14 | 鞍钢集团矿业公司 | Threaded positioning and locking device |
| WO2012071625A1 (en) * | 2010-12-01 | 2012-06-07 | Peter Andrew Gray | A nut assembly |
| CN203926311U (en) * | 2014-05-27 | 2014-11-05 | 中国重型机械研究院股份公司 | Two eccentric mechanism screw retentions |
-
2014
- 2014-05-27 CN CN201410226124.1A patent/CN104019108B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB886872A (en) * | 1959-04-17 | 1962-01-10 | Sulzer Ag | Screw-locking devices |
| SU1548542A1 (en) * | 1988-05-16 | 1990-03-07 | С.Г.Кузовников | Threaded connection |
| DE29706197U1 (en) * | 1997-04-08 | 1997-08-21 | Haller Gebhard | Securing device for cap screws |
| CN201714790U (en) * | 2010-04-26 | 2011-01-19 | 宁波东港紧固件制造有限公司 | Pentagonal flange face semi-thread bolt device |
| WO2012071625A1 (en) * | 2010-12-01 | 2012-06-07 | Peter Andrew Gray | A nut assembly |
| CN202165372U (en) * | 2011-08-09 | 2012-03-14 | 鞍钢集团矿业公司 | Threaded positioning and locking device |
| CN203926311U (en) * | 2014-05-27 | 2014-11-05 | 中国重型机械研究院股份公司 | Two eccentric mechanism screw retentions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019108B (en) | 2016-01-20 |
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