CN203926311U - Two eccentric mechanism screw retentions - Google Patents
Two eccentric mechanism screw retentions Download PDFInfo
- Publication number
- CN203926311U CN203926311U CN201420273285.1U CN201420273285U CN203926311U CN 203926311 U CN203926311 U CN 203926311U CN 201420273285 U CN201420273285 U CN 201420273285U CN 203926311 U CN203926311 U CN 203926311U
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- CN
- China
- Prior art keywords
- nut
- crank
- cone shape
- shape hole
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000014759 maintenance of location Effects 0.000 title claims abstract description 16
- 230000036461 convulsion Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model provides two eccentric mechanism screw retentions, comprise threaded screw rod, the sheathed nut being 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 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.The utility model 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 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 prevented the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
Description
Technical field
The utility model belongs to technical field of metallurgical equipment, relates in particular to and is applicable to a kind of pair of eccentric mechanism screw retention 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 locking with large-scale nut of place, 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.
Model utility content
For the problems referred to above, the utility model provides good, the easy processing of anti-loosing effect, has implemented to be easy to eccentric mechanism screw retention.
For achieving the above object, the utility model 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 being positioned on the same bus of nut.
The utility model adopts technique scheme, mainly contains following advantage: the utility model 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 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 prevented the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
Below with reference to accompanying drawing, the utility model 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
Below in conjunction with drawings and Examples, further two eccentric mechanism screw retentions are described in detail.
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 locking locked, thereby crank 3 reach the object of nut spline, in dismounting, first loosening locking nut 1, at rotating nut 4; When the utility model 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 prevented 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 being positioned on the same bus of nut 4, one end of two cranks 3 packs in cone shape hole 6, the other end packs in eccentric opening 5, when nut 4 is rotated in place, use locking nut 1 locking 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, when 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, by locking nut 1 locking, restrain 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, from structure, stop the movement tendency of nut, thereby thoroughly reach the object of locking thread.For some large-scale workpieces, especially in the larger occasion of some jerks, effectively prevented the loosening of the screw thread that causes due to jerk repeatedly, reach good using effect.
In sum, the utility model provides a kind of pair of eccentric mechanism screw retention, and 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 prevented 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 utility model, does not form the restriction to protection domain of the present utility model, within the every and same or analogous design of the utility model all belongs to protection domain of the present utility model.
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);
The threaded one end of described 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 |
|---|---|---|---|
| CN201420273285.1U CN203926311U (en) | 2014-05-27 | 2014-05-27 | Two eccentric mechanism screw retentions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273285.1U CN203926311U (en) | 2014-05-27 | 2014-05-27 | Two eccentric mechanism screw retentions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926311U true CN203926311U (en) | 2014-11-05 |
Family
ID=51822126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420273285.1U Expired - Fee Related CN203926311U (en) | 2014-05-27 | 2014-05-27 | Two eccentric mechanism screw retentions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019108A (en) * | 2014-05-27 | 2014-09-03 | 中国重型机械研究院股份公司 | Double-eccentric crank thread anti-loosening device |
-
2014
- 2014-05-27 CN CN201420273285.1U patent/CN203926311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019108A (en) * | 2014-05-27 | 2014-09-03 | 中国重型机械研究院股份公司 | Double-eccentric crank thread anti-loosening device |
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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 |
Granted publication date: 20141105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |