CN2589720Y - Screw thread deforming self-locking bolt and screw - Google Patents
Screw thread deforming self-locking bolt and screw Download PDFInfo
- Publication number
- CN2589720Y CN2589720Y CN 02257198 CN02257198U CN2589720Y CN 2589720 Y CN2589720 Y CN 2589720Y CN 02257198 CN02257198 CN 02257198 CN 02257198 U CN02257198 U CN 02257198U CN 2589720 Y CN2589720 Y CN 2589720Y
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- China
- Prior art keywords
- screw
- screw thread
- thread
- locking
- self
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- Expired - Fee Related
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Abstract
The utility model relates to a thread deformed self-locking screw bolt and a screw, which is composed of the screw bolt and a screw head, as well as the screw bolt and a screw shank. The utility model is characterized in that after the screw bolt and the screw shank are molded by thread machining, a section of threaded rod is elliptical which is (3-10) P long and is flattened via the special process tools mould at the thread approaching face at a distance of (2-5) P from the tail end of the thread. The thread is in continuous and smooth transition. The elastic energy formed by the deformation interference when the thread is screwed in helps to realize self-locking. The utility model has the advantages of simplifying preparing process, adjusting the size of locking torque at will, carrying out bulk working production and saving a great deal of processing cost.
Description
Affiliated technical field
The utility model relates to a kind of machine-processed outside thread self-locking fastener, particularly a kind of screw thread distortion self-locking fastener.
Background technique
International, the domestic at present self-locking method that generally adopts is to do improvement on nut structure, promptly designs self-locking nut miscellaneous and realizes the screw thread self-locking.And when fastening workpiece, can not use under the situation of nut, then must on bolt, screw, make an issue of.Existing self-locking screw, screw generally adopt 1. triangular self tapping Self-locking screws; 2. rely on the self-locking screw of the mass eccentricity realization elasticity self-locking of bolt head; 3. cutting elongated groove embeds nylon panel self-locking screw on bolt thread; 4. at bolt head, thread rod part punching self-locking screw.More than the less than 1. processing technology complexity of various self-locking screws, screw, be unfavorable for batch producing; 2. non-refractory; 3. processing cost is higher.
The purpose of this utility model is bolt, the screw that a kind of local deformation of passing through the part screw thread of design is realized self-locking, has overcome above shortcoming, and not only the locking torque size can be adjusted arbitrarily, and can realize producing in enormous quantities.
Summary of the invention
The technological scheme that its technical problem that solves the utility model adopts is: a kind of screw thread distortion Self-locking screw, form by screw head 6 and screw rod 7, after it is characterized in that the machine shaping of screw rod screw thread, flatten one section long threaded stem of 3P-10P apart from screw thread approaching face 8 places of screw thread tail end 2P-5P through the special tooling mould and be ellipse, screw thread is continuous, smooth transition; Screw head 7 be shaped as coiled hair, socket cap, countersunk head, countersunk raised head, interior hexagonal and special-shaped first-class; The material of making screw is the metallic material of energy plastic workings such as carbon steel, alloyed steel, titanium alloy, refractory alloy, aluminum alloy, Cuprum alloy; The external thread diameter 9 of screw rod is between M2-M12, and ellipse section part minor axis external thread diameter 10 deducts 0.1P～0.8P for external thread diameter.Distortion when being screwed into by screw thread interferes formed elastic energy to realize self-locking.The size of locking torque is adjusted by regulating screw thread flattening amount.
Screw thread distortion Self-locking screw is different from bolt: head, screw head 7 be shaped as hexagon head, special-shaped first-class, the specifically same bolt of technological scheme.
The utility model has the advantages that processing technology is simple, the locking torque size can be adjusted arbitrarily, can carry out processing in enormous quantities, has saved a large amount of processing costs.
Reach embodiment below with reference to the accompanying drawings the present invention is done detailed elaboration.
Fig. 1 screw thread distortion self-locking screw structural representation.
Fig. 2 screw thread distortion Self-locking screw structural representation.
1. bolt heads among Fig. 1,2. bolt shank, 3. screw thread approaching face.4. the external thread diameter of bolt shank, 5. minor axis external thread diameter.
6. screw head among Fig. 2,7. screw rod, 8. screw thread approaching face, the 9. external thread diameter of screw rod, 10. minor axis external thread diameter.
Embodiment: a kind of screw thread distortion Self-locking screw, form by screw head 6 and screw rod 7, after it is characterized in that the machine shaping of screw rod screw thread, flatten one section long threaded stem of 6P apart from screw thread approaching face 8 places of screw thread tail end 3P through the special tooling mould and be ellipse, screw thread is continuous, smooth transition; Distortion when being screwed into by screw thread interferes formed elastic energy to realize self-locking.The size of locking torque is adjusted by regulating screw thread flattening amount.
Claims (5)
1. a screw thread is out of shape Self-locking screw, form by screw head (6) and screw rod (7), after it is characterized in that the machine shaping of body of screw screw thread, locate to flatten one section long threaded stem of (3-10) P through the special tooling mould apart from the screw thread approaching face (8) of screw thread tail end (2-5) P and be ellipse, screw thread is continuous, smooth transition.
2. screw thread according to claim 1 distortion Self-locking screw, what it is characterized in that screw head (6) is shaped as coiled hair, socket cap, countersunk head, countersunk raised head, interior hexagonal and special-shaped first-class.
3. screw thread according to claim 1 distortion Self-locking screw, the material that it is characterized in that making screw are the metallic material that carbon steel, alloyed steel, titanium alloy, refractory alloy, aluminum alloy, Cuprum alloy etc. can plastic workings.
4. screw thread distortion Self-locking screw according to claim 1, the external thread diameter (9) that it is characterized in that screw rod is between M2-M12, and ellipse section part minor axis external thread diameter (10) deducts 0.1P～0.8P for external thread diameter.
5. screw thread according to claim 1 distortion Self-locking screw is characterized in that screw thread kind that screw rod is suitable for is the metric system, English system, MJ screw thread of machine-processed screw thread class etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257198 CN2589720Y (en) | 2002-09-29 | 2002-09-29 | Screw thread deforming self-locking bolt and screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257198 CN2589720Y (en) | 2002-09-29 | 2002-09-29 | Screw thread deforming self-locking bolt and screw |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03272199 Division CN2709695Y (en) | 2002-09-29 | 2002-09-29 | Thread deformed self-locking screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589720Y true CN2589720Y (en) | 2003-12-03 |
Family
ID=33725224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257198 Expired - Fee Related CN2589720Y (en) | 2002-09-29 | 2002-09-29 | Screw thread deforming self-locking bolt and screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589720Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483087A (en) * | 2009-03-03 | 2012-05-30 | 哈特马特.弗莱格 | Safety screw, screw connection and method for producing safety screw |
-
2002
- 2002-09-29 CN CN 02257198 patent/CN2589720Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483087A (en) * | 2009-03-03 | 2012-05-30 | 哈特马特.弗莱格 | Safety screw, screw connection and method for producing safety screw |
| CN102483087B (en) * | 2009-03-03 | 2014-05-28 | 哈特马特.弗莱格 | Safety screw, screw connection and method for producing safety screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031203 Termination date: 20100929 |