CN2511826Y - Nut against loose - Google Patents
Nut against loose Download PDFInfo
- Publication number
- CN2511826Y CN2511826Y CN 01256909 CN01256909U CN2511826Y CN 2511826 Y CN2511826 Y CN 2511826Y CN 01256909 CN01256909 CN 01256909 CN 01256909 U CN01256909 U CN 01256909U CN 2511826 Y CN2511826 Y CN 2511826Y
- Authority
- CN
- China
- Prior art keywords
- nut
- line
- bolt
- tooth form
- dental pattern
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a nut which has small axial force, can effectively prevent loose in the conditions of live load and impact and is applicable for each department in industry and daily life of people. A nut dental pattern is formed by a dental pattern line, a nut cap line and a small radial line; the nut cap line and the nut dental pattern line intersect at a big radius and the angle formed is 89 + - 1 degrees; the nut cap line is an oblique cap line, when the length of the nut cap line is ensured to match with a bolt, the axial maximum space of the bolt dental pattern line and the nut dental pattern line is 0.1 mm; the structural size of the nut is decided by the big radius minimum limiting size which is decided by the accuracy class of the bolt which matches with the structural size of the nut. The utility model solves the problem that radial and axial space exists in the connection of screw thread and removes the phenomenon of loose of the screw thread.
Description
Technical field:
The utility model relates to a kind of nut, especially a kind of lock nut with little axle power.
Background technique:
Scyewed joint fastening piece in being extensive use of now adopts the nuts and bolt of standard thread to cooperate, and after the threaded together, axially all there is the gap in radially reaching of nuts and bolt, as shown in Figure 1.Under the situation of vibration, dynamic load, will produce relative displacement, and make the power of the rubbing disappearance of locking between retention nut and the bolt and become flexible.For example in railway transport, the occasion of its fluctuating load and impact is very general, seriously threatens transportation safety.
Summary of the invention:
The purpose of this invention is to provide a kind of less axle power that has, the situation lower nut that can effectively prevent ground dynamic load, impact is loosening, be applicable to the lock nut in industrial all departments and the people's daily life, adopt the utility model to solve and have radial and axial clearance issues in the scyewed joint, eliminated the loosening phenomenon of screw-thread fit.
For achieving the above object, the technological scheme that is adopted:
The utility model nut constitutes the nut tooth form by tooth form line, nut top line and path line, it is characterized in that: nut top line and nut tooth form line intersect at place, big footpath, and two lines are 89 ± 1 ° angle, and the nut top line is the oblique top line.
The length of the utility model nut top line is guaranteed to cooperate constantly with bolt, the axial maximal clearance that bolt tooth form line and nut tooth form are reached the standard grade is 0.1mm, bolt tooth form line contacts with nut tooth form line when tightening, and the big footpath minimum limit of size that the physical dimension of nut is determined by bolt grade of accuracy with matching is determined.
The utility model nut top line and nut tooth form line intersect at place, big footpath, and the angle of two lines is preferably 89 ± 20 '.
After the utility model and bolt were tightened, because distortion, the bolt top line was not less than the wide face of 0.25mm with the line contacting point formation on nut inclined-plane and contacts.
The present invention designs and calculates to eliminate radial and axial gap.According to definite big footpath each size of minimum limit of size computer nut tooth form of bolt grade of accuracy that matches, after reaching fastening nut, because distortion, the bolt top line and the line contacting point on nut inclined-plane are become be not less than the wide face of 0.25mm to contact, nut tooth form line also contacts with bolt tooth form line simultaneously.Eliminate the radial and axial gap that nuts and bolt cooperates thereby reach.Therefore, work as load variations, when perhaps produce impacting, it is radial and axial all can not to produce relative displacement, prevents the elimination of the locking frictional force between screw thread effectively, keeps its self-locking performance, prevents the loosening of threaded fastener.
Accompanying drawing and drawing explanation:
Fig. 1: be the cooperation of the nuts and bolt of standard thread in generally using now after tightening.
Fig. 2: be the cooperation figure of the bolt of new tooth form nut of the present invention and standard thread tooth form after tightening.
Mark among the figure: 1 nut tooth form line, 2 nut top lines, 3 nut tooth form lines, 4 bolts, 5 bolt tooth form line 6 bolt crests, 7 bolt crests and nut crest contacting points
Embodiment:
As shown in Figure 2, the standard regular screw threads tooth form angle＜α of existing use=60 ° is still adopted at the tooth form angle of nut inner thread 〉.And nut top line 2 intersects at the place, big footpath that nut calculates with nut tooth form line 1, form 89 ± 20 ' angle; Nut top line 2 length that calculate just in time intersect with nut tooth form line 3, by nut tooth form line 1,3, and nut top line 2, nut tooth form line and path line constitute the nut tooth form.During fastening nut, make bolt 4 tensions, pitch increases, the nut pressurized, and pitch reduces.The distortion that produces makes bolt tooth form line 5 contact with nut tooth form line 3, further fastening nut makes bolt crest 6 and nut crest contacting point 7 be contacted by line to become horizontal plane and contact, snap in tightly in the nut tooth form thereby reach the bolt tooth form, play effective locking effect.
The bolt large diameter minimum limit of size of determining according to the grade of accuracy of the bolt that matches with nut calculates middle footpath, big footpath, path, oblique top line length formation nut tooth form.
Now the bolt with M16 * 2-6g is an example, and each one of the nut of calculating is of a size of: big footpath D=16.0232mm; Middle footpath D2=15.0244mm; Path D1=13.921mm; Oblique top line length L=0.733.
Claims (3)
1, a kind of lock nut with little axle power, constitute the nut tooth form by tooth form line (1,3), nut top line (2) and path line, it is characterized in that: nut top line and nut tooth form line (1) intersect at place, big footpath, and two lines are 89 ± 1 ° angle, and nut top line (2) is the oblique top line.
2, lock nut according to claim 1, it is characterized in that: when the length of nut top line (2) is guaranteed to cooperate with bolt, bolt tooth form line (5) is 0.1mm with the axial maximal clearance of nut tooth form line (3), bolt tooth form line (5) contacts with nut tooth form line (3) when tightening, and the big footpath minimum limit of size that the physical dimension of nut is determined by bolt with matching (4) grade of accuracy is determined.
3, lock nut according to claim 1 is characterized in that: nut top line (2) and nut tooth form line (1) intersect at place, big footpath, and the angle of two lines is preferably 89 ± 20 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256909 CN2511826Y (en) | 2001-12-14 | 2001-12-14 | Nut against loose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256909 CN2511826Y (en) | 2001-12-14 | 2001-12-14 | Nut against loose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511826Y true CN2511826Y (en) | 2002-09-18 |
Family
ID=33665775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256909 Expired - Fee Related CN2511826Y (en) | 2001-12-14 | 2001-12-14 | Nut against loose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511826Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915261B (en) * | 2009-01-06 | 2012-07-04 | 美铝公司 | Advanced nut and bolt |
| CN102606604A (en) * | 2012-03-06 | 2012-07-25 | 无锡市务达五金制品有限公司 | Anti-loosing steel wire thread sleeve |
| WO2022179467A1 (en) * | 2021-02-23 | 2022-09-01 | 许松林 | Thread pair for preventing automatic rolling movement in loosening direction |
-
2001
- 2001-12-14 CN CN 01256909 patent/CN2511826Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915261B (en) * | 2009-01-06 | 2012-07-04 | 美铝公司 | Advanced nut and bolt |
| CN102606604A (en) * | 2012-03-06 | 2012-07-25 | 无锡市务达五金制品有限公司 | Anti-loosing steel wire thread sleeve |
| WO2022179467A1 (en) * | 2021-02-23 | 2022-09-01 | 许松林 | Thread pair for preventing automatic rolling movement in loosening direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |