CN103909946A - Bolt anti-loosening sheet for use at shaft end - Google Patents
Bolt anti-loosening sheet for use at shaft end Download PDFInfo
- Publication number
- CN103909946A CN103909946A CN201410095898.5A CN201410095898A CN103909946A CN 103909946 A CN103909946 A CN 103909946A CN 201410095898 A CN201410095898 A CN 201410095898A CN 103909946 A CN103909946 A CN 103909946A
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- China
- Prior art keywords
- arc
- line segment
- bolt
- outstanding pin
- bolt hole
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Abstract
The invention relates to a bolt anti-loosening sheet for use at a shaft end. The bolt anti-loosening sheet is provided with a substrate in the middle of which a circular bolt hole is formed; two isosceles-trapezoid-shaped projecting legs are arranged on the upper portion of the substrate; the central lines of the two projecting legs pass through the circle center of the bolt hole; the two projecting legs are connected with each other through a first arc line segment; a second arc line segment is formed on the lower portion of the substrate; the two ends of the second arc line segment are connected with a straight line segment respectively; each straight line segment is connected with one side of a corresponding projecting leg far away from the other projecting leg; the radius of the first arc line segment is smaller than the radius of the second arc line segment and greater than the radius of the bolt hole; the joints between the first arc line segment as well as each straight line segment and corresponding projecting legs are positioned on the same circumference concentric with the bolt hole; the two projecting legs, the first arc line segment, the second arc line segment and the two straight line segment construct the outer edge of the substrate, and are symmetric relative to the same symmetric axis; the symmetric axis passes through the circle center of the bolt hole; the upper end of each straight line segment is closer to the symmetric axis than the lower end. By adopting the bolt anti-loosening sheet, a bolt arranged at the shaft end can be effectively prevented from loosening or falling off.
Description
Technical field
The present invention relates to a kind of axle head locking washer for bolt, be applicable to guideway vehicle axle head parts.
Background technology
According to the knowledge of the applicant, along with the development of guideway vehicle, guideway vehicle shaft end equipment is widely used, shaft end equipment is below bogie primary spring, vibration is large, frequency is high, and in order to improve the safety in operation of guideway vehicle, shaft end equipment mounting structure must have locking, anti-drop function.Traditional locking, anticreep mode is for current various shaft end equipments or do not have anti-drop function, or difficulty is installed to be difficult to realize.
Summary of the invention
Technical matters to be solved by this invention is: overcome the problem that prior art exists, a kind of axle head locking washer for bolt is provided, can effectively prevent the bolt looseness that axle head is installed or come off.
The technical scheme that the present invention solves its technical matters is as follows:
Axle head locking washer for bolt, has middle part and establishes the substrate of circular bolt holes, and the outstanding pin of two isosceles trapezoids is established on substrate top, and the line of centers of two outstanding pin is all crossed the bolt hole center of circle; Between two outstanding pin, connect with the first arc; The second arc is established in substrate bottom, the two ends of the second arc respectively with segment link always; Each linear portion connects away from a side of another outstanding pin with corresponding outstanding pin; Second arc radius > the first arc radius > bolt hole radius; The first arc, each linear portion are positioned on the same circumference concentric with bolt hole with the junction of corresponding outstanding pin; Two outstanding pin, the first arc, the second arc, two linear portions form the outward flange of substrate jointly, and all about same axis of symmetry symmetry, axis of symmetry is crossed the bolt hole center of circle, and each linear portion upper end is than the more close axis of symmetry in lower end.
The present invention further perfect technical scheme is as follows:
Preferably, the second arc bending direction towards or deviate from the first arc.
Preferably, the top margin length of two outstanding pin is half of its base length, angle in 90 ° between the line of centers of two outstanding pin.
Preferably, between each outstanding pin and the first camber line or linear portion with round-corner transition.
Two lockable bolt heads of outstanding pin of the present invention, prevent that bolt from rotating; The second arc may be stuck on adjacent parts, further locked bolt; Can effectively prevent like this bolt looseness that axle head is installed or come off, guaranteeing the safety of Vehicle Driving Cycle.
Accompanying drawing explanation
Fig. 1, Fig. 2 are the structural representation of the embodiment of the present invention.
The specific embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in further detail.But the invention is not restricted to given example.
Embodiment
As shown in Figure 1 and Figure 2, the present embodiment axle head locking washer for bolt, has middle part and establishes the substrate 2 of circular bolt holes 1, and substrate 2 tops are established the line of centers of outstanding pin 3, the two outstanding pin 3 of two isosceles trapezoids and all crossed bolt hole 1 center of circle; The top margin length of two outstanding pin 3 is half of its base length, angle in 90 ° between the line of centers of two outstanding pin 3.
Between two outstanding pin 3, connect with the first arc 4; The two ends that the second arc 5, the second arcs 5 are established in substrate 2 bottoms are connected with a linear portion 6 respectively; Each linear portion 6 connects away from a side of another outstanding pin 3 with corresponding outstanding pin 3.
Second arc 5 radius > the first arc 4 radius > bolt hole 1 radiuses; The first arc 4, each linear portion 6 are positioned on the same circumference concentric with bolt hole 1 with the junction of corresponding outstanding pin 3.
Two outstanding pin 3, the first arc 4, the second arc 5, the common outward flange that forms substrate 2 of two linear portions 6, and all about same axis of symmetry symmetry, axis of symmetry is crossed bolt hole 1 center of circle, and each linear portion 6 upper ends are than the more close axis of symmetry in lower end.
In addition, the second arc 5 bending directions towards or deviate from the first arc 4.Between each outstanding pin 3 and the first camber line or linear portion 6 with round-corner transition.
Claims (4)
1. axle head locking washer for bolt, has middle part and establishes the substrate of circular bolt holes, it is characterized in that, the outstanding pin of two isosceles trapezoids is established on described substrate top, and the line of centers of described two outstanding pin is all crossed the described bolt hole center of circle; Between described two outstanding pin, connect with the first arc; The second arc is established in described substrate bottom, the two ends of described the second arc respectively with segment link always; Described each linear portion connects away from a side of another outstanding pin with corresponding outstanding pin; Bolt hole radius described in the first arc radius > described in described the second arc radius >; Described the first arc, described each linear portion are positioned on the same circumference concentric with bolt hole with the junction of corresponding outstanding pin; Described two outstanding pin, the first arc, the second arc, two linear portions form the outward flange of substrate jointly, and all about same axis of symmetry symmetry, described axis of symmetry is crossed the bolt hole center of circle, and described each linear portion upper end is than the more close axis of symmetry in lower end.
2. axle head locking washer for bolt according to claim 1, is characterized in that, described the second arc bending direction towards or deviate from the first arc.
3. axle head locking washer for bolt according to claim 1 and 2, is characterized in that, the top margin length of described two outstanding pin is half of its base length, angle in 90 ° between the line of centers of described two outstanding pin.
4. axle head locking washer for bolt according to claim 1 and 2, is characterized in that, between described each outstanding pin and the first camber line or linear portion with round-corner transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095898.5A CN103909946A (en) | 2014-03-14 | 2014-03-14 | Bolt anti-loosening sheet for use at shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095898.5A CN103909946A (en) | 2014-03-14 | 2014-03-14 | Bolt anti-loosening sheet for use at shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103909946A true CN103909946A (en) | 2014-07-09 |
Family
ID=51036029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410095898.5A Pending CN103909946A (en) | 2014-03-14 | 2014-03-14 | Bolt anti-loosening sheet for use at shaft end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103909946A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0960630A (en) * | 1995-08-23 | 1997-03-04 | Ichikoh Ind Ltd | Screw looseness stopping mechanism and nut looseness stopping mechanism |
| JP2005201290A (en) * | 2004-01-13 | 2005-07-28 | Kayaba Ind Co Ltd | Mounting member of potentiometer |
| CN201053429Y (en) * | 2007-05-28 | 2008-04-30 | 宋旭超 | Thrust-stopping fastening screw bolt structure and thrust washer |
| CN201582090U (en) * | 2009-10-20 | 2010-09-15 | 山东双轮股份有限公司 | Tension bolt anti-loosening device of hydraulic pump |
| CN203766805U (en) * | 2014-03-14 | 2014-08-13 | 南车南京浦镇车辆有限公司 | Bolt looseness preventing piece used for shaft end |
-
2014
- 2014-03-14 CN CN201410095898.5A patent/CN103909946A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0960630A (en) * | 1995-08-23 | 1997-03-04 | Ichikoh Ind Ltd | Screw looseness stopping mechanism and nut looseness stopping mechanism |
| JP2005201290A (en) * | 2004-01-13 | 2005-07-28 | Kayaba Ind Co Ltd | Mounting member of potentiometer |
| CN201053429Y (en) * | 2007-05-28 | 2008-04-30 | 宋旭超 | Thrust-stopping fastening screw bolt structure and thrust washer |
| CN201582090U (en) * | 2009-10-20 | 2010-09-15 | 山东双轮股份有限公司 | Tension bolt anti-loosening device of hydraulic pump |
| CN203766805U (en) * | 2014-03-14 | 2014-08-13 | 南车南京浦镇车辆有限公司 | Bolt looseness preventing piece used for shaft end |
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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 | ||
| CB02 | Change of applicant information |
Address after: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Applicant after: CRRC NANJING PUZHEN CO., LTD. Address before: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Applicant before: CSR NANJING PUZHEN Vehicles Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140709 |