CN104019108B - Two eccentric mechanism screw retention - Google Patents
Two eccentric mechanism screw retention Download PDFInfo
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- CN104019108B CN104019108B CN201410226124.1A CN201410226124A CN104019108B CN 104019108 B CN104019108 B CN 104019108B CN 201410226124 A CN201410226124 A CN 201410226124A CN 104019108 B CN104019108 B CN 104019108B
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- nut
- crank
- cone shape
- shape hole
- eccentric
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Abstract
The invention provides two eccentric mechanism screw retention, comprise threaded screw rod, the sheathed nut be mated on threaded screw rod, also comprise crank, one end of this crank is provided with screw thread, described nut side is provided with cone shape hole, and face and the nut outer side surface of this cone shape hole small aperture are positioned on the same face, and the top end face of described line screw mandrel is provided with eccentric opening; It is outer and locked by locking nut that described threaded one end of crank tool extends to nut through cone shape hole, and the other end of described crank is inserted in eccentric opening.Anti-loosing effect of the present invention is good, and easily processing, enforcement are easily; Make full use of eccentric mechanism when rotating with nut, the mechanism that crank can do relatively reciprocating motion with nut, stops the movement tendency of nut, thus thoroughly reaches the object of locking thread from structure.For some large-scale workpieces, especially in the occasion that some jerks are larger, effectively prevent loosening of the screw thread caused due to jerk repeatedly, reach good using effect.
Description
Technical field
The invention belongs to technical field of metallurgical equipment, particularly relate to and be applicable to a kind of two eccentric mechanism screw retention of the larger occasion of jerk.
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 circular nut, nut pad, and its processing is got up comparatively difficult, 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 and loosen 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 retention, comprise threaded screw rod, the sheathed nut be 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 face and the nut outer side surface of this cone shape hole small aperture are positioned on the same face, and the top end face of described threaded screw rod is provided with eccentric opening;
It is outer and locked by locking nut that described threaded one end of crank tool extends to 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 be 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 being 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; Make full use of eccentric mechanism when rotating with nut, the mechanism that crank can do relatively reciprocating motion with nut, stops the movement tendency of nut, thus thoroughly reaches the object of locking thread from structure.For some large-scale workpieces, especially in the occasion that some jerks are larger, effectively prevent loosening of the screw thread caused due to jerk repeatedly, reach good using effect.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
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 retention is 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 4 be mated on threaded screw rod 2, also comprise crank 3, one end of this crank 3 is provided with screw thread, described nut 4 side is provided with cone shape hole 6, and face and nut 4 outer side surface of this cone shape hole 6 small aperture are positioned on the same face, and the top end face of described threaded screw rod 2 is provided with eccentric opening 5;
It is outer and locked by locking nut 1 that described threaded one end of crank 3 tool extends to nut 4 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 locking nut 1 is used to lock locked, crank 3 thus reach the object of nut spline, when dismounting, first locking nut 1 is loosened, at rotating nut 4; The present invention makes full use of eccentric mechanism when rotating with nut, and the mechanism that outside can do relatively reciprocating motion with nut, stops the movement tendency of nut, thus thoroughly reach the object of locking thread from structure.For some large-scale workpieces, especially in the occasion that some jerks are larger, effectively prevent loosening of the screw thread caused 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 be engaged on crank 3 is two, correspondence is located at the cone shape hole 6 of nut 4 side and eccentric opening 5 is 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 being positioned at nut 4, one end of two cranks 3 loads in cone shape hole 6, the other end loads in eccentric opening 5, when nut 4 is rotated in place, locking nut 1 is used to lock locked, crank 3 thus reach the object of nut 4 spline, carry out locked after adopting two cranks 3 and symmetrical eccentric opening 5 better to tighten nut 4 and threaded screw rod 2, when two cranks 3 are arranged symmetrically with, always there is the whorl side of a crank 3 can bounce back along cone shape hole 6, the trend of its retraction is restrained by locking nut 1 locking, thus reach down the object of nut 2 spline, make full use of eccentric mechanism when rotating with nut, the mechanism that outside can do relatively reciprocating motion with nut, the movement tendency of nut is stoped from structure, thus thoroughly reach the object of locking thread.For some large-scale workpieces, especially in the occasion that some jerks are larger, effectively prevent loosening of the screw thread caused 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; Make full use of eccentric mechanism when rotating with nut, the mechanism that outside can do relatively reciprocating motion with nut, stops the movement tendency of nut, thus thoroughly reaches the object of locking thread from structure.For some large-scale workpieces, especially in the occasion that some jerks are larger, effectively prevent loosening of the screw thread caused due to jerk repeatedly, reach good using effect.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (1)
1. pair eccentric mechanism screw retention, comprise threaded screw rod (2), the upper sheathed nut (4) be mated 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, described nut (4) side is provided with cone shape hole (6), face and nut (4) outer side surface of this cone shape hole (6) small aperture are positioned on the same face, and the top end face of described threaded screw rod (2) is provided with eccentric opening (5);
Described threaded one end of crank (3) tool is extended to nut (4) through cone shape hole (6) and is also locked by locking nut (1) outward, and the other end of described crank (3) is inserted in eccentric opening (5);
Described eccentric opening (5) is two, and is symmetricly set on threaded screw rod (2) longitudinal center line both sides;
Described crank (3) is also two, and the locking nut (1) be engaged on crank (3) is two, and the cone shape hole (6) that correspondence is located at nut (4) side is also two;
Two described 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 CN104019108A (en) | 2014-09-03 |
| CN104019108B true CN104019108B (en) | 2016-01-20 |
Family
ID=51436031
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) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH369319A (en) * | 1959-04-17 | 1963-05-15 | Sulzer Ag | Screw locking |
| SU1548542A1 (en) * | 1988-05-16 | 1990-03-07 | С.Г.Кузовников | Threaded connection |
| DE29706197U1 (en) * | 1997-04-08 | 1997-08-21 | Haller, Gebhard, 88400 Biberach | 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 |
| NZ611853A (en) * | 2010-12-01 | 2015-05-29 | 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 |
-
2014
- 2014-05-27 CN CN201410226124.1A patent/CN104019108B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104019108A (en) | 2014-09-03 |
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