CN102071603A - Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof - Google Patents
Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof Download PDFInfo
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- CN102071603A CN102071603A CN 201010604132 CN201010604132A CN102071603A CN 102071603 A CN102071603 A CN 102071603A CN 201010604132 CN201010604132 CN 201010604132 CN 201010604132 A CN201010604132 A CN 201010604132A CN 102071603 A CN102071603 A CN 102071603A
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Abstract
The invention relates to a railway turnout bolt and nut loosening prevention device and a loosening prevention method thereof, which can effectively prevent bolts and nuts of a railway turnout from loosening. The device consists of a supporting frame, a bolt or nut loosening prevention sheet, a flat washer and a split pin, wherein the supporting frame is arranged below the bolts or the nuts; the bolts or the nuts are fastened to the supporting frame; and the loosening prevention sheet with an internal dodecagonal deformation part is arranged on the bolts or the nuts and is fixedly arranged through the flat washer and the split pin. The invention has the advantages that: 1, the problem of loosening of the bolts or the nuts, which puzzles the turnout work maintenance department for a long time, is effectively solved through a mechanical bolt and nut loosening prevention mechanism which has a simple structure and is convenient to operate, and the bolts and the nuts can be continuously used during maintenance or after disassembly and adjustment, so that the turnout cost is greatly reduced; 2, the device contributes to durability, safety and less maintenance of the railway turnout; and 3, the device has an obvious loosening prevention effect, so the maintenance work load of the turnout work maintenance department can be greatly reduced, and the requirement on rapid development of a railway is met.
Description
Technical field
The present invention relates to a kind of a kind of railway switch bolt, nut anti-looseness device and anti-loose method that can prevent railway switch bolt, nut loosening effectively, belong to the railway switch component and make the field.
Background technology
Railway switch is crossed the impact of trouble because of being subjected to train for a long time, and bolt, nut in use become flexible because of strenuous vibration or come off, and brings very big workload to maintenance of way maintenance, and has a strong impact on traffic safety.In order to solve bolt, nut loosening problem, the research of each side is all being done by a lot of scientific research institutions, various locknuts had once also been succeeded in developing, but most of locknuts are disposable, and the locking back is in case dismounting is adjusted, and the nut anti-looseness function just lost efficacy, track switch is in the circuit prolonged application, need the routine maintenance maintenance, locknut application in practice effect is undesirable, is not suitable for the laying and the maintenance of track switch.In recent years in Line for Passenger Transportation track switch is made, the applicant also once developed anti-rotor and prevented bolt, nut loosening, bolt on by moment of torsion, all " ears " that to prevent rotor behind the nut upwards bend 90 °, after fit parallel with nut, can play locking effect, but because of the high-strength bolt Tightening moment bigger, anti-rotor is often because of being subjected to the external force crimp of fastening bolt, even fracture, can not be at design attitude and bolt, nut cooperates locking, often because of the fracture of anti-rotation sheet needs demounting bolt, re-assemblies in the practical operation, increased operating personnel's workload, so anti-rotor does not reach desirable anti-loosing effect.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design a kind of a kind of railway switch bolt, nut anti-looseness device and anti-loose method that can prevent railway switch bolt, nut loosening effectively.
Design scheme: in order to realize above-mentioned purpose of design.The present invention is on structure design, bolt or nut are stuck in the interior dodecagonal anti-loosing slice of band, both form restricting relation, after treating that bolt is installed fastening finishing, by packing ring, cottor pin anti-loosing slice is fixed, can lastingly, reliably prevent bolt, nut loosening, solve track switch effectively and caused leveling screw, nut loosening problem because of being subjected to train to cross the trouble vibration for a long time.This bolt, nut rotation-preventing mechanism are simple in structure, have economic, practical advantage.This locking gear has passed through practical proof, and simple installation is safe and reliable, has reduced the workload of switchman affair maintenance department, has guaranteed that train crosses the safety of trouble.
Technical scheme 1: a kind of railway switch bolt, nut anti-looseness device, constitute by bracing frame, bolt or nut anti-looseness sheet, plain washer and cottor pin, bracing frame is placed on below bolt or the nut, bolt or nut and bracing frame are fastening, and the anti-loosing slice that has interior 12 distortion is installed on bolt or the nut and by plain washer, cottor pin anti-loosing slice is installed and fixed.
Technical scheme 2: the anti-loose method of a kind of railway switch bolt, nut anti-looseness device, bolt or nut anti-looseness sheet have interior dodecagon, bolt or nut are stuck in the interior dodecagon, both form restricting relation, restriction bolt or nut rotate, plain washer and cottor pin are fastened on bolt or nut anti-looseness sheet on the bracing frame, guarantee that bolt or nut anti-looseness sheet and bolt or nut well are installed, and prevent that bolt or nut anti-looseness sheet from use dropping.
The present invention compares with background technology, the one, simple in structure, easy to operate mechanical type bolt, nut anti-looseness mechanism, the bolt, the nut loosening problem that perplex switchman affair maintenance department have for a long time been solved effectively, and in maintenance or after disassembling adjustment, bolt and nut can continue to use, and greatly reduces the track switch cost; The 2nd, for railway switch durability, safety, the few maintenance have been made significant contribution; The 3rd, this device anti-loosing effect is remarkable, can reduce the maintenance load of switchman affair maintenance department significantly, has adapted to the needs of railway fast development.
Description of drawings
Fig. 1 is the structural representation of railway switch bolt, first kind of embodiment of nut anti-looseness device.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structural representation of railway switch bolt, the third embodiment of nut anti-looseness device.
Fig. 4 is the plan structure schematic diagram of Fig. 3.
The specific embodiment
Embodiment 1: with reference to attached Fig. 1 and 2, nut, bolt are with two hole locking gears: be applicable to the locking of two nuts or bolt.A kind of railway switch nut, screw retention device, constitute by bracing frame 1, nut anti-looseness sheet 2, plain washer 3 and cottor pin 4, bracing frame 1 is placed on below the nut 5, nut or bolt and bracing frame 1 are fastening, and the anti-loosing slices 2 that have interior 12 distortion are installed on bolt or the nut and by plain washer 4, cottor pin 3 anti-loosing slice are installed and fixed.The described anti-loosing slice 2 that has interior 12 distortion is nut or screw retention sheet.Described nut or screw retention sheet are two holes.The key technology of this nut or screw retention mechanism: match with six corner angle of hex nut or bolt by the interior dodecagon in nut or the screw retention sheet, restriction nut or bolt rotate.
Embodiment 2: with reference to accompanying drawing 3 and 4, nut or bolt are with three hole locking gears: be applicable to the locking of three nuts or bolt.A kind of railway switch bolt, nut anti-looseness device, constitute by bracing frame 1, nut or screw retention sheet 2, plain washer 3 and cottor pin 4, bracing frame 1 is placed on below bolt or the nut 5, bolt or nut and bracing frame 1 are fastening, and the anti-loosing slices 2 that have interior 12 distortion are installed on bolt or the nut and by plain washer 4, cottor pin 3 anti-loosing slice are installed and fixed.The described anti-loosing slice 2 that has interior 12 distortion is nut or screw retention sheet.Described bolt or nut anti-looseness sheet are three holes.This nut or bolt are with the key technology of three hole locking gears: match the rotation of restriction nut or bolt with six corner angle of hex bolts with the interior dodecagon in the three hole anti-loosing slices by nut or bolt.
The implementation procedure of above embodiment: at first bracing frame 1 is placed on below bolt or the nut, fastening bolt or nut again, after to be tightened the finishing, the anti-loosing slices 2 that will have interior 12 distortion are installed on bolt or the nut, by plain washer 4, cottor pin 3 anti-loosing slice are installed and fixed.1. bracing frame realizes that by base, bearing pin welding base, bearing pin all adopt Q235-A material, and processing step is as follows respectively: base: blanking---＞processing; Bearing pin: blanking---＞processing; Bracing frame: welding---＞surperficial antirust processing---＞assembling; 2.---＞punching press---＞surperficial antirust processing---＞assembling that nut anti-looseness sheet, screw retention sheet all adopt Q235-A material, and realization measure and processing step are as follows: blanking; 3. plain washer, cottor pin are standard component, the directly assembling of buying back.
Embodiment 3: on the basis of embodiment 1, the anti-loose method of a kind of railway switch bolt, nut anti-looseness device, bolt or nut anti-looseness sheet 2 have interior dodecagon, bolt or nut 5 are stuck in the interior dodecagon, both form restricting relation, and restriction bolt or nut rotate, and plain washer 3 is fastened on bolt or nut anti-looseness sheet 2 on the bracing frame 1 with cottor pin 4, guarantee that bolt or nut anti-looseness sheet 2 and bolt or nut 5 well are installed, and prevent that bolt or nut anti-looseness sheet 2 from use dropping.
What need understand is: though the foregoing description is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of this exposed installation meter thinking; any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of protection of the present invention.
Claims (4)
1. a railway switch bolt, nut anti-looseness device, it is characterized in that constituting by bracing frame, bolt or nut anti-looseness sheet, plain washer and cottor pin, bracing frame is placed on below bolt or the nut, bolt or nut and bracing frame are fastening, and the anti-loosing slice that has interior 12 distortion is installed on bolt or the nut and by plain washer, cottor pin anti-loosing slice is installed and fixed.
2. railway switch bolt according to claim 1, nut anti-looseness device is characterized in that: the described anti-loosing slice that has interior 12 distortion is bolt or nut anti-looseness sheet.
3. railway switch bolt according to claim 2, nut anti-looseness device is characterized in that: described bolt or nut anti-looseness sheet are two holes or three holes.
4. the anti-loose method of a railway switch bolt, nut anti-looseness device, it is characterized in that: bolt or nut anti-looseness sheet have interior dodecagon, bolt or nut are stuck in the interior dodecagon, both form restricting relation, restriction bolt or nut rotate, plain washer and cottor pin are fastened on bolt or nut anti-looseness sheet on the bracing frame, guarantee that bolt or nut anti-looseness sheet and bolt or nut well are installed, and prevent that bolt or nut anti-looseness sheet from use dropping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106041327A CN102071603B (en) | 2010-12-24 | 2010-12-24 | Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106041327A CN102071603B (en) | 2010-12-24 | 2010-12-24 | Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102071603A true CN102071603A (en) | 2011-05-25 |
| CN102071603B CN102071603B (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106041327A Active CN102071603B (en) | 2010-12-24 | 2010-12-24 | Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102071603B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806349A (en) * | 2013-12-04 | 2014-05-21 | 中铁宝桥（南京）有限公司 | Nut anti-loosening mechanism special for railway turnout |
| CN104746102A (en) * | 2013-12-31 | 2015-07-01 | 贵州航天乌江机电设备有限责任公司 | Method and structure for preventing nut looseness of phosphorus-iron ring pressure stripper of anode assembly workshop |
| CN109513784A (en) * | 2018-12-26 | 2019-03-26 | 中国铁建重工集团有限公司 | Tooling |
| CN109554962A (en) * | 2018-12-27 | 2019-04-02 | 中国铁建重工集团有限公司 | Screw retention device and track switch |
| CN112747027A (en) * | 2019-10-29 | 2021-05-04 | 中国航发商用航空发动机有限责任公司 | Engine casing and bolt anti-loosening device thereof |
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| CN2200720Y (en) * | 1994-05-10 | 1995-06-14 | 韦林 | Double-locking anti-loose combined nut |
| CN2254025Y (en) * | 1996-07-23 | 1997-05-14 | 谢智庆 | Spanner capable of wrenching worn nut |
| CN2594521Y (en) * | 2003-01-21 | 2003-12-24 | 浙江海力标准件有限公司 | Anti-loosing security screw bolt pair |
| EP1413677A2 (en) * | 2002-10-23 | 2004-04-28 | Schwihag Gesellschaft für Eisenbahnoberbau mbH | Device for fastening rails |
| CN201606383U (en) * | 2010-02-10 | 2010-10-13 | 荆州荆福汽车零部件有限公司 | Looseness-proof device used for automobile tie rod joint |
| CN202007368U (en) * | 2010-12-24 | 2011-10-12 | 中铁宝桥集团有限公司 | Bolt and nut loosening-preventing device for track switch of railway |
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2010
- 2010-12-24 CN CN2010106041327A patent/CN102071603B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200720Y (en) * | 1994-05-10 | 1995-06-14 | 韦林 | Double-locking anti-loose combined nut |
| CN2254025Y (en) * | 1996-07-23 | 1997-05-14 | 谢智庆 | Spanner capable of wrenching worn nut |
| EP1413677A2 (en) * | 2002-10-23 | 2004-04-28 | Schwihag Gesellschaft für Eisenbahnoberbau mbH | Device for fastening rails |
| CN2594521Y (en) * | 2003-01-21 | 2003-12-24 | 浙江海力标准件有限公司 | Anti-loosing security screw bolt pair |
| CN201606383U (en) * | 2010-02-10 | 2010-10-13 | 荆州荆福汽车零部件有限公司 | Looseness-proof device used for automobile tie rod joint |
| CN202007368U (en) * | 2010-12-24 | 2011-10-12 | 中铁宝桥集团有限公司 | Bolt and nut loosening-preventing device for track switch of railway |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806349A (en) * | 2013-12-04 | 2014-05-21 | 中铁宝桥（南京）有限公司 | Nut anti-loosening mechanism special for railway turnout |
| CN103806349B (en) * | 2013-12-04 | 2016-08-17 | 中铁宝桥（南京）有限公司 | Railway switch specialized nut locking gear |
| CN104746102A (en) * | 2013-12-31 | 2015-07-01 | 贵州航天乌江机电设备有限责任公司 | Method and structure for preventing nut looseness of phosphorus-iron ring pressure stripper of anode assembly workshop |
| CN109513784A (en) * | 2018-12-26 | 2019-03-26 | 中国铁建重工集团有限公司 | Tooling |
| CN109513784B (en) * | 2018-12-26 | 2023-10-13 | 中国铁建重工集团股份有限公司 | Tooling |
| CN109554962A (en) * | 2018-12-27 | 2019-04-02 | 中国铁建重工集团有限公司 | Screw retention device and track switch |
| CN109554962B (en) * | 2018-12-27 | 2023-12-26 | 中国铁建重工集团股份有限公司 | Bolt anti-loosening assembly and turnout |
| CN112747027A (en) * | 2019-10-29 | 2021-05-04 | 中国航发商用航空发动机有限责任公司 | Engine casing and bolt anti-loosening device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102071603B (en) | 2012-08-08 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY BAOJI BRIDGE (NANJING) CO., LTD. Effective date: 20130322 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130322 Address after: 721006 Baoji Qing Jiang Road, Shaanxi, No. 80 Patentee after: China Railway Baoji Bridge Group Co., Ltd. Patentee after: China Railway Bridge (Nanjing) Co., Ltd. Address before: 721006 Baoji Qing Jiang Road, Shaanxi, No. 80 Patentee before: China Railway Baoji Bridge Group Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CHINA RAILWAY BAOJI BRIDGE (NANJING) CO., LTD. Effective date: 20130531 Owner name: CHINA RAILWAY BAOJI BRIDGE (NANJING) CO., LTD. Free format text: FORMER OWNER: CHINA RAILWAY BAOJI BRIDGE GROUP CO., LTD. Effective date: 20130531 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 721006 BAOJI, SHAANXI PROVINCE TO: 210046 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130531 Address after: 210046, No. 6, Xin Zhong Road, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: China Railway Bridge (Nanjing) Co., Ltd. Address before: 721006 Baoji Qing Jiang Road, Shaanxi, No. 80 Patentee before: China Railway Baoji Bridge Group Co., Ltd. Patentee before: China Railway Bridge (Nanjing) Co., Ltd. |