CN105134745A - Double-layer dish tooth surface combination gasket - Google Patents
Double-layer dish tooth surface combination gasket Download PDFInfo
- Publication number
- CN105134745A CN105134745A CN201510679535.0A CN201510679535A CN105134745A CN 105134745 A CN105134745 A CN 105134745A CN 201510679535 A CN201510679535 A CN 201510679535A CN 105134745 A CN105134745 A CN 105134745A
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- China
- Prior art keywords
- gasket
- packing ring
- dish
- double
- bolt
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- Bolts, Nuts, And Washers (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a double-layer dish tooth surface combination gasket which comprises a first gasket and a second gasket, wherein the insides of the first gasket and second gasket are respectively provided with a through hole; the first gasket and second gasket are respectively a dish structure; the lower surface of the first gasket and the upper surface of the second gasket are respectively provided with meshing saw teeth which are matched in a mutually staggered mode; and the first gasket meshes with the second gasket through the meshing saw teeth. The plane of the double-layer locking combination gasket is pressed into the dish, and the upper and lower surfaces become conical surfaces, so that the integral combination gasket becomes a dish; and in the bolt mounting process, since the dish is flattened by the pretightening force of the bolt, the elasticity of the dish can compensate the pretightening force of the bolt, thereby performing the locking function.
Description
Technical field
The invention belongs to mechanical fasteners field, particularly relate to a kind of double-deck dish-shaped flank of tooth bonded washer.
Background technique
Loosen: mainly refer in this patent that bolt loosens automatically, refer to mounted bolt when not applying loose moment due to vibration, the reasons such as temperature variation cause bolt to loosen gradually, and pretightening force reduces gradually, even come off.Essentially, the minimizing of i.e. pretightening force is loosened.
Locking: mainly to refer to prevent from loosening.
Spring washer conventional at present adopts the standard of GB93, produces elastic force when the spring of opening flattens, and ensures the pretightening force of bolt thus plays locking effect, the wedge angle of opening embeds workpiece surface simultaneously, increase the moment that screws needs, two features are superimposed, play locking effect.But because the elastic force of split ring packing ring is less, when for high-strength bolt, the elastic force of this packing ring is less, and the inserted depth of wedge angle is also very shallow, can not play good locking functions.
Also have a kind of common lock washer to be the saucer washer adopting DIN6796 standard, his elastic force is comparatively large, can by compensating the loss of bolt pretightening in elasticity, play and keep pretightening force thus locking effect, can be used for high-strength bolt, but owing to not being with tooth in surface, can not friction factor be increased.
There is a kind of double-layer chock lock washer at present, feature is that this packing ring has two panels to combine, the wherein radial groove of upper gasket upper surface band, the groove that lower surface is thicker, lower gasket is also two sides band tooth, its upper surface groove just engages with the lower surface bastard line of upper gasket, and following table wears radial groove.This kind of wedge shape lock washer upper and lower surface is all plane and upper and lower surface is completely parallel.This packing ring has good effect to preventing bolt looseness, but because do not have elasticity, can not compensate the loss of pretightening force.
Summary of the invention
A kind of double-deck dish-shaped flank of tooth bonded washer is the invention provides for solving the problem.The present invention is by being pressed into dish by the plane of locking for bilayer bonded washer, upper and lower surface becomes the conical surface, and make this bonded washer entirety become a dish, dish flattens by the pretightening force due to bolt during construction bolt, the elastic force of dish can compensate the pretightening force of bolt, plays locking effect.
For reaching above-mentioned technique effect, technological scheme of the present invention is:
A kind of double-deck dish-shaped flank of tooth bonded washer, comprise the first packing ring and the second packing ring, the inside of the first packing ring and the second packing ring is equipped with through hole, described first packing ring and the second packing ring are disc structure, the lower surface of the first packing ring and the upper surface of the second packing ring are respectively equipped with the engagement sawtooth of interlaced cooperation, and the first packing ring and the second packing ring pass through together with engagement engagement.
Further improvement, the upper surface of the first packing ring and the lower surface of the second packing ring are respectively equipped with locking sawtooth; The tooth pitch of engagement sawtooth is greater than the tooth pitch of locking sawtooth.
Further improvement, described engagement sawtooth is radial.
Further improvement, described locking sawtooth is radial.
The present invention is by being pressed into dish by the plane of locking for bilayer bonded washer, upper and lower surface becomes the conical surface, and make this bonded washer entirety become a dish, dish flattens by the pretightening force due to bolt during construction bolt, the elastic force of dish can compensate the pretightening force of bolt, plays locking effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment
The double-deck dish-shaped flank of tooth bonded washer of one as shown in Figure 1, comprise the first packing ring 1 and the second packing ring 2, the inside of the first packing ring 1 and the second packing ring 2 is equipped with through hole 3, described first packing ring 1 and the second packing ring 2 are disc structure, the lower surface of the first packing ring 1 and the upper surface of the second packing ring 2 are respectively equipped with engagement sawtooth 4, first packing ring 1 of interlaced cooperation and the second packing ring 2 is meshed together by engagement sawtooth 4.Engagement sawtooth 4 is preferably radial.The upper surface of the first packing ring 1 and the lower surface of the second packing ring 2 are respectively equipped with locking sawtooth 5.Locking sawtooth 5 is preferably radial.The tooth pitch of engagement sawtooth 4 is greater than the tooth pitch of locking sawtooth 5.
During construction bolt, dish-shaped for bilayer flank of tooth bonded washer also flattens by the double-deck dish-shaped flank of tooth bonded washer of bolt presses.When pretightening force reduces, the reduction of the deformation-recovery force compensating pretightening force of double-deck dish-shaped flank of tooth bonded washer, thus bolt is maintained as much as possible, reduce loosening of bolt.
Under state of applanation, packing ring of the present invention is the same with general dual layer wedge shape lock washer, locking sawtooth 5 stud bolt (or nut) of upper surface, and the locking sawtooth 5 of lower surface embeds workpiece face, loosens on the Surface of action between the upper lower gasket of only generation.
When the present invention uses, as shown in Figure 1, the disc structure back-off of bonded washer is placed, the bottom surface of machine disc structure upper, periphery under.
The explanation of above example just understands core concept of the present invention for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. the dish-shaped flank of tooth bonded washer of bilayer, comprise the first packing ring (1) and the second packing ring (2), the inside of the first packing ring (1) and the second packing ring (2) is equipped with through hole (3), it is characterized in that, described first packing ring (1) and the second packing ring (2) are disc structure, the lower surface of the first packing ring (1) and the upper surface of the second packing ring (2) are respectively equipped with the engagement sawtooth (4) of interlaced cooperation, and the first packing ring (1) and the second packing ring (2) are meshed together by engagement sawtooth (4).
2. double-deck dish-shaped flank of tooth bonded washer as claimed in claim 1, is characterized in that, the upper surface of the first packing ring (1) and the lower surface of the second packing ring (2) are respectively equipped with locking sawtooth (5); The tooth pitch of engagement sawtooth (4) is greater than the tooth pitch of locking sawtooth (5).
3. double-deck dish-shaped flank of tooth bonded washer as claimed in claim 1, is characterized in that, described engagement sawtooth (4) is for radial.
4. double-deck dish-shaped flank of tooth bonded washer as claimed in claim 2, is characterized in that, described locking sawtooth (5) is for radial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510679535.0A CN105134745A (en) | 2015-10-19 | 2015-10-19 | Double-layer dish tooth surface combination gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510679535.0A CN105134745A (en) | 2015-10-19 | 2015-10-19 | Double-layer dish tooth surface combination gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134745A true CN105134745A (en) | 2015-12-09 |
Family
ID=54720241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510679535.0A Pending CN105134745A (en) | 2015-10-19 | 2015-10-19 | Double-layer dish tooth surface combination gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134745A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321602A (en) * | 2016-07-07 | 2017-01-11 | 中国第汽车股份有限公司 | Lock washer |
| CN114183453A (en) * | 2021-12-17 | 2022-03-15 | 张家陶 | Interlocking type bolt anti-loosening structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2342159Y (en) * | 1996-02-14 | 1999-10-06 | 景同祥 | Anti-loose device for nut |
| CN202628750U (en) * | 2012-05-23 | 2012-12-26 | 上海萨美锐工业机械有限公司 | Combined type loosening-preventing gasket |
| FR2979959A1 (en) * | 2011-09-13 | 2013-03-15 | Ct Tech Des Ind Mecaniques | DOUBLE CROWN LOCK WASHER |
| CN203384269U (en) * | 2013-06-18 | 2014-01-08 | 李富立 | Disc spring |
| CN104704249A (en) * | 2012-09-12 | 2015-06-10 | 诺德锁具国际公司 | Rough metallic locking washer |
| CN205064539U (en) * | 2015-10-19 | 2016-03-02 | 上海格姆特紧固技术有限公司 | Double -deck dish -shaped flank of tooth composite pad circle |
-
2015
- 2015-10-19 CN CN201510679535.0A patent/CN105134745A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2342159Y (en) * | 1996-02-14 | 1999-10-06 | 景同祥 | Anti-loose device for nut |
| FR2979959A1 (en) * | 2011-09-13 | 2013-03-15 | Ct Tech Des Ind Mecaniques | DOUBLE CROWN LOCK WASHER |
| CN202628750U (en) * | 2012-05-23 | 2012-12-26 | 上海萨美锐工业机械有限公司 | Combined type loosening-preventing gasket |
| CN104704249A (en) * | 2012-09-12 | 2015-06-10 | 诺德锁具国际公司 | Rough metallic locking washer |
| CN203384269U (en) * | 2013-06-18 | 2014-01-08 | 李富立 | Disc spring |
| CN205064539U (en) * | 2015-10-19 | 2016-03-02 | 上海格姆特紧固技术有限公司 | Double -deck dish -shaped flank of tooth composite pad circle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321602A (en) * | 2016-07-07 | 2017-01-11 | 中国第汽车股份有限公司 | Lock washer |
| CN114183453A (en) * | 2021-12-17 | 2022-03-15 | 张家陶 | Interlocking type bolt anti-loosening structure |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |