CN102454678A - Safety dual-screw nut - Google Patents
Safety dual-screw nut Download PDFInfo
- Publication number
- CN102454678A CN102454678A CN2010105111731A CN201010511173A CN102454678A CN 102454678 A CN102454678 A CN 102454678A CN 2010105111731 A CN2010105111731 A CN 2010105111731A CN 201010511173 A CN201010511173 A CN 201010511173A CN 102454678 A CN102454678 A CN 102454678A
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- CN
- China
- Prior art keywords
- screw nut
- screw
- nut
- fixed
- radial clearance
- 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.)
- Pending
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Abstract
The invention discloses a safety dual-screw nut, which is characterized by consisting of a front screw nut (2) and a rear screw nut (3), wherein the front screw nut (2) and the rear screw nut (3) are connected through a pin shaft (4), the front screw nut (2) is fixed, an external thread is arranged at the tail end of the rear screw nut (3), and a round nut is arranged at the outer external. According to the invention, the rear screw nut moves forwards by rotating the round nut; because the front screw nut is fixed, a radial clearance between a screw rod and the screw nut is further reduced, the screw rod is prevented from shifting, and thus higher stability is achieved. Meanwhile, because the clearance is reduced, uncontrollable errors are eliminated, and assembly precision is increased.
Description
Technical field:
The present invention relates to a kind of screw, the especially a kind of screw that can regulate screw mandrel and screw radial clearance.
Background technique:
Screw is an integrative-structure in the existing technology, and screw mandrel and screw are when fit applications, and radial clearance between the two can strengthen after long-time wearing and tearing gradually, cause the radial-play of screw mandrel, and shifting amount can be increasingly sharpened also.The radial clearance that the screw of this structure and screw mandrel exist can't be adjusted, and causes its assembly precision lower, and unstable working condition is not suitable for assembly precision and stability requirement condition with higher.
Summary of the invention:
The present invention is directed to problems such as the screw mandrel play, the assembly precision that exist in the existing technology are low, a kind of safe mariages mother that can regulate screw mandrel and screw radial clearance is provided.
Technical solution of the present invention is: a kind of safe mariages is female, and screw is made up of preceding screw and back screw two-part, and both connect through bearing pin, and wherein preceding screw is fixed, and the tail end of back screw is provided with outside thread, and the outside thread place is provided with round nut.
The present invention moves forward the back screw through the rotational circle nut, owing to preceding screw is fixed, and then dwindles the radial clearance of screw mandrel and screw, prevents that screw mandrel from producing play, therefore has advantages of higher stability.Because uncontrollable error is got rid of in dwindling of gap, improved assembly precision simultaneously.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Embodiment:
Further specify embodiments of the invention below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of safe mariages is female, and screw is made up of preceding screw 2 and back screw 3 two-part, and both connect through bearing pin, and wherein preceding screw 2 is fixed, and the tail end of back screw 3 is provided with outside thread, and the outside thread place is provided with round nut 4.During use with forward and backward screw spiral shell to screw mandrel 1, if screw mandrel 1 play is bigger, then the slewing circle nut makes the back screw move forward and reduce radial clearance.
Claims (1)
1. a safe mariages is female, it is characterized in that: screw is made up of preceding screw (2) and back screw (3) two-part, and both connect through bearing pin, and wherein preceding screw (2) is fixed, and the tail end of back screw (3) is provided with outside thread, and the outside thread place is provided with round nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105111731A CN102454678A (en) | 2010-10-19 | 2010-10-19 | Safety dual-screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105111731A CN102454678A (en) | 2010-10-19 | 2010-10-19 | Safety dual-screw nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454678A true CN102454678A (en) | 2012-05-16 |
Family
ID=46038205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105111731A Pending CN102454678A (en) | 2010-10-19 | 2010-10-19 | Safety dual-screw nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102454678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382954A (en) * | 2015-12-24 | 2016-03-09 | 大连宝锋机器制造有限公司 | Permanent magnet two-roller refiner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611684Y (en) * | 2003-04-01 | 2004-04-14 | 强鸿枭 | Combined nut able to eliminate gap |
| CN2628199Y (en) * | 2003-05-29 | 2004-07-28 | 袁大伟 | Lead screw drive mechanism for wire-cutting machine tool working table |
| US20050252323A1 (en) * | 2004-05-14 | 2005-11-17 | Yugen Kaisha Hama International | Moving body and actuating device having the same |
| CN201475273U (en) * | 2009-08-25 | 2010-05-19 | 北京普析通用仪器有限责任公司 | Clearance elimination nut |
| CN101844191A (en) * | 2009-03-23 | 2010-09-29 | 邢世娥 | Connecting mechanism of connecting rod and sphere lead screw with guiding function |
| CN201858323U (en) * | 2010-10-19 | 2011-06-08 | 大连宝锋机器制造有限公司 | Safety double screw nut |
-
2010
- 2010-10-19 CN CN2010105111731A patent/CN102454678A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611684Y (en) * | 2003-04-01 | 2004-04-14 | 强鸿枭 | Combined nut able to eliminate gap |
| CN2628199Y (en) * | 2003-05-29 | 2004-07-28 | 袁大伟 | Lead screw drive mechanism for wire-cutting machine tool working table |
| US20050252323A1 (en) * | 2004-05-14 | 2005-11-17 | Yugen Kaisha Hama International | Moving body and actuating device having the same |
| CN101844191A (en) * | 2009-03-23 | 2010-09-29 | 邢世娥 | Connecting mechanism of connecting rod and sphere lead screw with guiding function |
| CN201475273U (en) * | 2009-08-25 | 2010-05-19 | 北京普析通用仪器有限责任公司 | Clearance elimination nut |
| CN201858323U (en) * | 2010-10-19 | 2011-06-08 | 大连宝锋机器制造有限公司 | Safety double screw nut |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382954A (en) * | 2015-12-24 | 2016-03-09 | 大连宝锋机器制造有限公司 | Permanent magnet two-roller refiner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120516 |