CN204716701U - A kind of special-shaped anti-rotation self-locking back-up ring - Google Patents
A kind of special-shaped anti-rotation self-locking back-up ring Download PDFInfo
- Publication number
- CN204716701U CN204716701U CN201520380988.9U CN201520380988U CN204716701U CN 204716701 U CN204716701 U CN 204716701U CN 201520380988 U CN201520380988 U CN 201520380988U CN 204716701 U CN204716701 U CN 204716701U
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- Prior art keywords
- short tube
- hole
- shaped
- special
- locking back
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Abstract
The utility model discloses a kind of special-shaped anti-rotation self-locking back-up ring, comprise part noumenon (1), the shape of part noumenon (1) is the short tube shape that one end is closed, short tube is closed one end and is provided with the irregularly-shaped hole (2) overlapped with short tube medial axis, the external cylindrical surface of short tube is provided with outside thread (4), and the inwall of short tube is provided with depressed deformation hole (3) be uniformly distributed along the circumference; Short tube do not close the end face of one end be provided be uniformly distributed along the circumference screw breach (5).The utility model not only has the advantage of auto-lock function, but also has the advantage preventing the ability of rotating.The utility model intensity is enough, firm and reliable connection, is particularly suitable in hole after Assembly of the parts, carries out spacing to the axial position of part in hole, and can be used for other and have the occasion of larger axis to load.
Description
Technical field
the utility model relates to a kind of special-shaped anti-rotation self-locking back-up ring, belongs to self-locking thread connection technology field.
Background technique
in hole after Assembly of the parts, circlip for hole usually can be adopted to carry out spacing to the axial position of part in hole, because existing circlip for hole wall is thin, intensity is low, easily lost efficacy under the effect of axial impact force.Therefore, when thrust load is larger, existing circlip for hole is adopted to carry out to the axial position of part in hole the needs that spacing mode can not meet use.
Model utility content
the purpose of this utility model is: provide a kind of can to the axial position of part in hole carry out spacing, intensity is higher, prevent the rotation of part and can bear thrust load impact special-shaped anti-rotation self-locking back-up ring, to overcome the deficiencies in the prior art.
the technical solution of the utility model is achieved in that
the special-shaped anti-rotation self-locking back-up ring of one of the present utility model is, this special-shaped anti-rotation self-locking back-up ring comprises part noumenon, the shape of part noumenon is the short tube shape that one end is closed, short tube is closed one end and is provided with the irregularly-shaped hole overlapped with short tube medial axis, the external cylindrical surface of short tube is provided with outside thread, and the inwall of short tube is provided with the depressed deformation hole be uniformly distributed along the circumference; Short tube do not close the end face of one end be provided be uniformly distributed along the circumference screw breach.
in aforementioned special-shaped anti-rotation self-locking back-up ring, described depressed deformation hole is circumferentially uniformly distributed 2 ~ 4, and depressed deformation hole is spheroid impression, forms local crowning distortion at the outside thread place that depressed deformation hole is corresponding.
in aforementioned special-shaped anti-rotation self-locking back-up ring, end face inner bore and the outer bore edges of the closed one end of described short tube are equipped with chamfering.
in aforementioned special-shaped anti-rotation self-locking back-up ring, the interior outer bottom edge that one end closed by described short tube is equipped with arc round angle.
the pass of aforementioned irregularly-shaped hole is made up of the arc-shaped edges in an orthodrome hole and three small arc-shaped holes, the center of circle in orthodrome hole overlaps with short tube medial axis, the center of circle in three small arc-shaped holes was located at short tube medial axis and respectively perpendicular on 3 straight lines of short tube medial axis, these 3 straight lines angle is each other respectively 120 degree, and the center of circle in three small arc-shaped holes is equal to the distance of short tube medial axis, and the radius in small arc-shaped hole is 1/3 ~ 2/3 of orthodrome pore radius.
owing to have employed technique scheme, the utility model compared with prior art, the utility model is taked to produce the outside protruding structure in 2 ~ 4 places in outside thread circumference on the back-up ring of hole, make the outside thread generation deformed threads among a small circle of hole back-up ring, when the outside thread after being out of shape is screwed into the matrix part of band interior threaded hole, the internal thread of matrix part tightly embraces the hole back-up ring that outside thread is slightly deformed, thus in making, externally threaded joint produces locking torque, the matrix part of band interior threaded hole is firmly connected with one abnormity anti-rotation self-locking back-up ring, so both can play good locking effect, thus achieve auto-lock function, and the irregularly-shaped hole of part prevents the rotation of part, moving axially of anti-Sealing shield ring part.Because special-shaped anti-rotation self-locking back-up ring is be threaded with matrix, can ensure that it has enough intensity to bear going out of thrust load.Compared with prior art, the utility model not only has the advantage of auto-lock function to the utility model, but also has the advantage preventing the ability of rotating.The utility model intensity is enough, firm and reliable connection, is particularly suitable in hole after Assembly of the parts, carries out spacing to the axial position of part in hole, and can be used for other and have the occasion of larger axis to load.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model;
fig. 2 is the utility model floor map;
fig. 3 makes screw thread produce the schematic diagram of distortion by impression.
being labeled as in accompanying drawing: 1-part noumenon; 2-irregularly-shaped hole; 2.1-orthodrome hole; 2.2-small arc-shaped hole; 3-depressed deformation is cheated; 4-outside thread; 5-screws breach; 6-local crowning is out of shape; 7-chamfering; 8-arc round angle; The radius in R-orthodrome hole; The radius in r-small arc-shaped hole.
Embodiment
below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
the special-shaped anti-rotation self-locking back-up ring of one of the present utility model, as shown in Figures 1 to 3, this special-shaped anti-rotation self-locking back-up ring comprises part noumenon 1, the shape of part noumenon 1 is the short tube shape that one end is closed, short tube is closed one end and is provided with the irregularly-shaped hole 2 overlapped with short tube medial axis, the external cylindrical surface of short tube is provided with outside thread 4, and the inwall of short tube is provided with the depressed deformation hole 3 be uniformly distributed along the circumference; Short tube do not close the end face of one end be provided be uniformly distributed along the circumference screw breach 5.Depressed deformation hole 3 is circumferentially uniformly distributed 2 ~ 4, and depressed deformation hole 3 is spheroid impression, and outside thread 4 place cheating 3 correspondences at depressed deformation forms local crowning distortion 6.End face inner bore and the outer bore edges of the closed one end of short tube are equipped with chamfering 7, the interior outer bottom edge that one end closed by short tube is equipped with arc round angle 8, the pass of its irregularly-shaped hole 2 is made up of the arc-shaped edges in an orthodrome hole 2.1 and three small arc-shaped holes 2.2, the center of circle in orthodrome hole 2.1 overlaps with short tube medial axis, the center of circle in three small arc-shaped holes 2.2 was located at short tube medial axis and respectively perpendicular on 3 straight lines of short tube medial axis, these 3 straight lines angle theta is each other respectively 120 degree, and the center of circle in three small arc-shaped holes 2.2 is equal to the distance of short tube medial axis, the size of the radius R in orthodrome hole 2.1 and the radius r in small arc-shaped hole 2.2 all can be determined according to needing of using, but the radius r in small arc-shaped hole 2.2 should be controlled in the scope of 1/3 ~ 2/3 of the radius R in orthodrome hole 2.1 when making, drilling machine can be adopted during making, milling machine or the processing profiled hole 2 of wire cutting machine tool.
Embodiment
when implementing the utility model, first processing accessories body 1, then threading 4 on the cylindrical of part noumenon 1, and process irregularly-shaped hole 2 at part noumenon 1 center, then on the inwall at the outside thread place of part noumenon 1, adopt existing flaring or impact style to extrude 2 ~ 4 depressed deformation holes 3, the outside thread on part noumenon 1 outer surface is made to produce local crowning distortion 6 by depressed deformation hole 3, distortion as shown in Figure 3, as seen from Figure 3, externally threaded tooth depth raises up δ highly by original height (in figure shown in dotted line).Owing to screw thread creating local crowning distortion, during connection, self-locking moment can be produced; Irregularly-shaped hole has the effect preventing from rotating.In order to convenient disassembly in use, 2 ~ 8 can be processed on the end face of part noumenon 1 and screw breach, be convenient to load and unload special-shaped anti-rotation self-locking back-up ring by instrument.
in order to prevent part from cracking at wedge angle when heat treatment process, adopt chamfering 7 or arc round angle 8 transition at the sharp corner of part noumenon 1.
Claims (5)
1. a special-shaped anti-rotation self-locking back-up ring, comprise part noumenon (1), it is characterized in that: the shape of part noumenon (1) is the short tube shape that one end is closed, short tube is closed one end and is provided with the irregularly-shaped hole (2) overlapped with short tube medial axis, the external cylindrical surface of short tube is provided with outside thread (4), and the inwall of short tube is provided with depressed deformation hole (3) be uniformly distributed along the circumference; Short tube do not close the end face of one end be provided be uniformly distributed along the circumference screw breach (5).
2. special-shaped anti-rotation self-locking back-up ring according to claim 1, it is characterized in that: described depressed deformation hole (3) is circumferentially uniformly distributed 2 ~ 4, depressed deformation hole (3) is spheroid impression, and outside thread (4) place corresponding at depressed deformation hole (3) forms local crowning distortion (6).
3. special-shaped anti-rotation self-locking back-up ring according to claim 1, is characterized in that: end face inner bore and the outer bore edges of the closed one end of described short tube are equipped with chamfering (7).
4. special-shaped anti-rotation self-locking back-up ring according to claim 1, is characterized in that: the interior outer bottom edge that one end closed by described short tube is equipped with arc round angle (8).
5. special-shaped anti-rotation self-locking back-up ring according to claim 1, it is characterized in that: the pass of described irregularly-shaped hole (2) is made up of the arc-shaped edges of an orthodrome hole (2.1) and three small arc-shaped holes (2.2), the center of circle in orthodrome hole (2.1) overlaps with short tube medial axis, the center of circle of three small arc-shaped holes (2.2) was located at short tube medial axis and respectively perpendicular on 3 straight lines of short tube medial axis, these 3 straight lines angle each other (θ) are respectively 120 degree, and the center of circle of three small arc-shaped holes (2.2) is equal to the distance of short tube medial axis, and the radius (r) of small arc-shaped hole (2.2) is 1/3 ~ 2/3 of orthodrome hole (2.1) radius (R).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380988.9U CN204716701U (en) | 2015-06-05 | 2015-06-05 | A kind of special-shaped anti-rotation self-locking back-up ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380988.9U CN204716701U (en) | 2015-06-05 | 2015-06-05 | A kind of special-shaped anti-rotation self-locking back-up ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716701U true CN204716701U (en) | 2015-10-21 |
Family
ID=54315702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520380988.9U Withdrawn - After Issue CN204716701U (en) | 2015-06-05 | 2015-06-05 | A kind of special-shaped anti-rotation self-locking back-up ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716701U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879364A (en) * | 2015-06-05 | 2015-09-02 | 贵州航天精工制造有限公司 | Special-shaped anti-rotation self-locking retainer ring |
| CN108223533A (en) * | 2018-03-20 | 2018-06-29 | 贵州航天精工制造有限公司 | Six side's anti-rotation self-locking baffle ring in one kind |
| CN108825619A (en) * | 2018-07-16 | 2018-11-16 | 贵州航天精工制造有限公司 | Cubic anti-rotation self-locking retaining ring in one kind |
-
2015
- 2015-06-05 CN CN201520380988.9U patent/CN204716701U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879364A (en) * | 2015-06-05 | 2015-09-02 | 贵州航天精工制造有限公司 | Special-shaped anti-rotation self-locking retainer ring |
| CN108223533A (en) * | 2018-03-20 | 2018-06-29 | 贵州航天精工制造有限公司 | Six side's anti-rotation self-locking baffle ring in one kind |
| CN108825619A (en) * | 2018-07-16 | 2018-11-16 | 贵州航天精工制造有限公司 | Cubic anti-rotation self-locking retaining ring in one kind |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |