CN201714810U - Threaded connection check protection device - Google Patents
Threaded connection check protection device Download PDFInfo
- Publication number
- CN201714810U CN201714810U CN2010202932489U CN201020293248U CN201714810U CN 201714810 U CN201714810 U CN 201714810U CN 2010202932489 U CN2010202932489 U CN 2010202932489U CN 201020293248 U CN201020293248 U CN 201020293248U CN 201714810 U CN201714810 U CN 201714810U
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- China
- Prior art keywords
- loose
- hole
- check
- nut
- proof sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a threaded connection check protection device. The threaded connection check protection device at least comprises a check sleeve and a check cover. The check cover is arranged at one end of the check sleeve by welding or by a positioning pin or a set screw connection structure. The other end of the check sleeve is provided with a hole in fit with a check nut. The hole is contacted with the side wall of the nut. A screw thread of a bolt is provided with a key slot along the radial direction and is provided with a fixed screw mounting hole along the axial direction. The check cover is provided with a fixed screw hole and a key in fit with the key slot. The check cover is connected with the screw thread end part of the bolt by the key, the fixed screw mounting hole, a fixing screw and a gasket. The utility model is suitable for the important threaded connection check protection device which is used under the working conditions of heavy load bearing, variable load, large temperature variation and large impact and vibration.
Description
Technical field
The utility model relates to a kind of thread connection anti-loose protective gear, especially a kind of to bear heavy duty, varying load, temperature variation big and impact, vibration is big, and thread connection anti-loose protective gear that use, important under the operating mode such as rugged environment.
Background technique
It is the principal mode that connects in the machinery that bolt connects, and is widely used in the connection of machinery component such as metallurgy, forging and pressing, mine, cement, oil, chemical industry, light industry.Bolt connects generally speaking, when being subjected to static load and temperature change little, can not get loose voluntarily.But under impact, vibration or varying load effect, and temperature change is easy to generate situation about getting loose when big.For this reason, in order to guarantee to connect reliably, prevent to become flexible, must take effective locking measure, anti-loose method commonly used mainly contains following several types:
1, rotate freely type, this locking device can increase the nut friction in when rotation, or gets loose at nut and still can keep certain pretightening force after turning an angle, and anti-loose ability increases with the secondary pretightening force that is threaded and improves.Main structure has: forms such as spring washer, double nut, binding nut, elastic washer, hexagonal flanged surface, high-strength prestress.
2, effective torque type, the surface friction drag that this locking form relies on " the effective torque part " on bolt or the nut to produce prevents to become flexible with the pretension that is connected.Main structure has: the lock bolt of nylon ring locking nut, band nylon inserts or screw etc.
3, mechanical locking type, this locking form is by add-on parts such as cotter pin, wire etc., make between the fastening piece or fastening piece and connected piece between can not relatively rotate.Main structure has: the with holes and slotted nut of screw rod joins that cotter pin, common screw and nut are joined cotter pin, the head eye bolt is worn wire, adopted monaural or ears or forms such as lock washer with tongue at outside, angle steel welding.
4, dash a some riveted joint type, this locking form is to make to be threaded secondaryly locally to produce plastic deformation and prevent to get loose, but dismounting arbitrarily.Principal mode has: dash at screw thread path place end face between screw bolt and nut and directly bolt head is riveted after point makes screw bolt and nut junction screw thread produce plastic deformation, nut screwing clamping.
5, adhesive type, this locking form is partly to coat Bond at internal and external threads, make between the internal and external threads can not generation property to rotating.
More than five kinds of locking forms under normal conditions, its anti-loosing effect is reliably, effectively, is widely used in the machinery of industry-by-industry.But for bear heavy duty, varying load, temperature variation big and impact, vibration is big, equipment that use, important under the operating modes such as rugged environment, its bolt connect locking certain narrow limitation that still exists.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of bear heavy duty, varying load, temperature variation big and impact, vibration is big and operating modes such as rugged environment under the thread connection anti-loose protective gear that uses.
The technological scheme that solves the problems of the technologies described above is: the thread connection anti-loose protective gear, at least comprise loose-proof sleeve and locking lid, described locking lid is installed in an end of described loose-proof sleeve by welding or locating stud or Cock screw linkage structure, the other end of described loose-proof sleeve be provided with by the suitable hole of locking nut, described hole contacts with described nut sidewall, the threaded end of described bolt has been disposed radially keyway, is provided with the set screw mounting hole vertically; Described locking cover be provided with fixing screw hole and with the suitable key of described keyway; Described locking lid is connected with the thread head of bolt by described key, set screw mounting hole, fixing screw hole and set screw, packing ring.
Further be, an end of described loose-proof sleeve and nut contact extends to connecting plate and pastes mutually, described loose-proof sleeve with connecting plate mutually subsides place be welded to connect.
The optimal way of such scheme is, the inside of the prolongation of described loose-proof sleeve be cylindrical hole and and packing ring between gapped.
Further be that the structure in the hole on the described loose-proof sleeve is kidney slot hole or hexagon ring.
In sum, the beneficial effects of the utility model are: utilize loose-proof sleeve bottom " waist shape " slotted eye or hexagon ring and nut to match, prevent to produce relative rotation between loose-proof sleeve and the nut; The keyway of locking key that covers and bolt head matches, and prevents to produce relative rotation between locking lid and the bolt; After assembling, loose-proof sleeve welded with locking lid or Cock screw or locating stud are connected, prevent to produce relative rotation between loose-proof sleeve and the locking lid.Like this, just can effectively prevent relatively rotating between the bolts and nuts.Form a safety cover after loose-proof sleeve is fixedlyed connected with locking lid, bolt head and helical thread portion can prevent to be bruised, to injure by a crashing object, and the erosion of the dust in the rugged environment, solid shape pollutant even water etc.Described anti-loose structure be specially adapted to bear heavy duty, time dependent loading, temperature variation big, impact, vibration is big and operating modes such as rugged environment under use be threaded.
Description of drawings
Fig. 1 is the structural representation of the utility model thread connection anti-loose device;
Fig. 2 is that the utility model thread connection anti-loose protective gear is used for the thread connection anti-loose schematic representation that the stud bolt two ends are provided with nut;
Fig. 3 is that the utility model thread connection anti-loose protective gear is used for the thread connection anti-loose schematic representation that stud bolt one end is provided with nut;
Fig. 4 is the A-A sectional view of Fig. 1 and Fig. 2;
Fig. 5 is the B-B sectional view of Fig. 3.
Be labeled as loose-proof sleeve 1, locking lid 2, fixing screw hole 21, key 22, fixing bolt 3, packing ring 4, bolt 5, set screw mounting hole 51, nut 6, connecting plate 7, packing ring 8 among the figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Described as background information, existing thread connection anti-loose method has multiple, but be to be applicable to locking under the normal condition mostly, such as: little load, fixed load, normal temperature operating mode etc., its anti-loosing effect is reliably, effectively, but bear heavy duty, varying load, temperature variation big, impact big, vibration is big and during operating mode such as rugged environment, all there is certain narrow limitation in above-mentioned several anti-loose methods, anti-loosing effect can not be satisfactory.
Be that thread connection anti-loose protective gear of the present utility model is summed up a kind of improvement structure that proposes as shown in Figure 1 on the basis of above-mentioned technology.Be exactly described thread connection anti-loose protective gear specifically, at least comprise loose-proof sleeve 1 and locking lid 2, described locking lid 2 is installed in an end of described loose-proof sleeve 1 by welding or locating stud or Cock screw linkage structure, the other end of described loose-proof sleeve 1 be provided with by the suitable hole of locking nut 6, described hole contacts with described nut 6 sidewalls, the threaded end of described bolt 5 has been disposed radially keyway, is provided with set screw mounting hole 51 vertically; Described locking lid 2 be provided with fixing screw hole 21 and with the suitable key 22 of described keyway; Described locking lid 2 is connected with the thread head of bolt 5 by described key 22, set screw mounting hole 51, fixing screw hole 21 and set screw 3, packing ring 4.During use, that utilizes loose-proof sleeve 1 bottom matches with suitable hole and the nut 6 of nut 6, prevents to produce relative rotation between loose-proof sleeve 1 and the nut 6; Key 22 on the locking lid 2 matches with the keyway of bolt head, prevents to produce relative rotation between locking lid 2 and the bolt 5; After assembling, loose-proof sleeve 1 welded with locking lid 2 or locating stud or Cock screw are connected admittedly, prevent to produce relative rotation between loose-proof sleeve and the locking lid.Like this, just can effectively prevent relatively rotating between the bolts and nuts.Play bear heavy duty, varying load, temperature variation big, impact, vibration is big and locking effect during operating mode such as rugged environment, its anti-loosing effect is good, anti-loose ability is strong.Simultaneously, described anti-loose structure is not only applicable to operating mode vertically upward, goes for the locking protection that any position is threaded yet.Form a safety cover after loose-proof sleeve 1 is fixedlyed connected with locking lid 2, make bolt 5 heads and helical thread portion can prevent to be bruised, to injure by a crashing object, prevent the erosion of dust, solid shape pollutant or even water etc. in the rugged environment, play a good protection.Adopt the described thread connection anti-loose protective gear can not only be locking; can also link into an integrated entity securely with bolt 5; both made big in heavy duty, variable load, temperature variation, impact, under the operating mode of vibrations; anti-loose structure of the present utility model also can not break away from bolt 5, and the structure in the hole that described and nut 6 are adaptive can be set to as Fig. 4, Fig. 5 described kidney slot hole or hexagon ring.
Accompanying drawing 2 shows thread connection anti-loose protective gear of the present utility model and is used for the operating mode that is threaded that the stud bolt two ends are provided with nut, and its structure is in full accord with the using method of the threaded end that is used for bolt.
Accompanying drawing 3 show thread connection anti-loose protective gear of the present utility model be used for stud bolt only an end be provided with the operating mode that is threaded of nut; at this moment; described locking device just not only just prevents the loosening of double-screw bolt and nut; also must prevent the rotation between double-screw bolt and the connecting plate 7; so the utility model has been done further improvement; promptly be the end that loose-proof sleeve 1 contacts with nut 6 is extended to connecting plate 7 places and to be adjacent to, be welded to connect with connecting plate 7 again with this connecting plate 7.Adopt described structure, can prevent the loosening of double-screw bolt and nut, can prevent the rotation of double-screw bolt and connecting plate 7 again.Further for install, easily manufactured, the prolongation inside of described loose-proof sleeve 1 be cylindrical hole and and packing ring 8 between gapped.
Claims (4)
1. thread connection anti-loose protective gear, at least comprise loose-proof sleeve (1) and locking lid (2), described locking lid (2) is installed in an end of described loose-proof sleeve (1) by welding or locating stud or Cock screw linkage structure, the other end of described loose-proof sleeve (1) be provided with by the suitable hole of locking nut (6), described hole contacts with described nut (6) sidewall, it is characterized in that: the threaded end of described bolt (5) has been disposed radially keyway, is provided with set screw mounting hole (51) vertically; Described locking lid (2) be provided with fixing screw hole (21) and with the suitable key (22) of described keyway; Described locking lid (2) is connected with the thread head of bolt (5) by described key (22), set screw mounting hole (51), fixing screw hole (21) and set screw (3), packing ring (4).
2. thread connection anti-loose protective gear according to claim 1 is characterized in that: an end of described loose-proof sleeve (1) and nut (6) contact extends to connecting plate (7) and pastes mutually, described loose-proof sleeve (1) with connecting plate (7) mutually subsides place be welded to connect.
3. thread connection anti-loose protective gear according to claim 2 is characterized in that: the prolongation of described loose-proof sleeve (1) inside partly be cylindrical hole and and packing ring (8) between gapped.
4. according to claim 1,2 or 3 described thread connection anti-loose protective gears, it is characterized in that: the structure in the hole on the described loose-proof sleeve (1) is kidney slot hole or hexagon ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202932489U CN201714810U (en) | 2010-08-16 | 2010-08-16 | Threaded connection check protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202932489U CN201714810U (en) | 2010-08-16 | 2010-08-16 | Threaded connection check protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714810U true CN201714810U (en) | 2011-01-19 |
Family
ID=43460806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202932489U Expired - Lifetime CN201714810U (en) | 2010-08-16 | 2010-08-16 | Threaded connection check protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201714810U (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168712A (en) * | 2011-05-05 | 2011-08-31 | 王大俊 | Anti-loosing fastening bolt assembly |
| CN103089785A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Anti-loosening fastening device |
| CN103089786A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Anti-loosening fastener |
| CN104024663A (en) * | 2011-12-28 | 2014-09-03 | 空中客车简易股份公司 | Anti-Rotation Device For Pivot And Hinge Device Having Anti-Rotation Device |
| CN104074856A (en) * | 2014-07-02 | 2014-10-01 | 张栋 | Anti-theft foundation bolt of overhead transmission line tower |
| CN105485337A (en) * | 2016-01-19 | 2016-04-13 | 陕西中大机械集团有限责任公司 | Locking device of transfer case separating and meshing mechanism |
| CN106382296A (en) * | 2016-11-08 | 2017-02-08 | 徐州建机工程机械有限公司 | Nut looseness-prevention structure |
| CN106608072A (en) * | 2017-03-08 | 2017-05-03 | 扬力集团股份有限公司 | Air cushion locknut anti-looseness structure for press |
| CN108020496A (en) * | 2017-11-24 | 2018-05-11 | 中山市创艺生化工程有限公司 | A blood cell analyzer with easy disassembly and assembly of counting pool |
| CN108071654A (en) * | 2016-11-16 | 2018-05-25 | 孙愉后 | For the locking device of fastener |
| CN109236836A (en) * | 2018-11-16 | 2019-01-18 | 安顺中安安装工程有限公司 | A kind of locking Self tightening device and the method applied to the locking self-tightening of tower crane |
| CN109322892A (en) * | 2018-11-05 | 2019-02-12 | 浙江瑞昭科技有限公司 | A kind of bolt and nut component |
| CN109676989A (en) * | 2019-01-30 | 2019-04-26 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press crankshaft-link rod clamp device |
| CN109773104A (en) * | 2019-01-30 | 2019-05-21 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press screw rod set clamp device and method |
| CN109798408A (en) * | 2019-01-07 | 2019-05-24 | 杭州易明远科技有限公司 | A kind of fire hose clasp device |
| CN109914819A (en) * | 2019-03-01 | 2019-06-21 | 广东中集建筑制造有限公司 | Transport legs and building module units for building modules |
| CN110107582A (en) * | 2019-04-30 | 2019-08-09 | 广东锻压机床厂有限公司 | Press connecting rod nut and stud retention device |
| CN110332206A (en) * | 2019-07-24 | 2019-10-15 | 海盐华胜紧固件有限公司 | A kind of cold-resistant nut assembly of railway |
| CN110821939A (en) * | 2019-11-26 | 2020-02-21 | 陶金波 | Anti-loosening screw rod |
| CN110886759A (en) * | 2019-11-28 | 2020-03-17 | 国家电网有限公司 | A kind of fastening bolt and fastening method for foundation of water inlet ball valve of power station |
| CN112157393A (en) * | 2020-11-10 | 2021-01-01 | 吕新青 | Welding tool and manufacturing process of well type electric furnace |
| CN113107951A (en) * | 2021-04-09 | 2021-07-13 | 中航飞机起落架有限责任公司 | Bolt connection nut anti loosening structure |
| CN114179843A (en) * | 2021-12-03 | 2022-03-15 | 中车唐山机车车辆有限公司 | Traction device, bogie and rail vehicle |
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-
2010
- 2010-08-16 CN CN2010202932489U patent/CN201714810U/en not_active Expired - Lifetime
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168712A (en) * | 2011-05-05 | 2011-08-31 | 王大俊 | Anti-loosing fastening bolt assembly |
| CN104024663A (en) * | 2011-12-28 | 2014-09-03 | 空中客车简易股份公司 | Anti-Rotation Device For Pivot And Hinge Device Having Anti-Rotation Device |
| CN104024663B (en) * | 2011-12-28 | 2015-12-16 | 空中客车简易股份公司 | For anti-rotation device and the hinge means with this anti-rotation device of pivot |
| CN103089785A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Anti-loosening fastening device |
| CN103089786A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Anti-loosening fastener |
| CN104074856A (en) * | 2014-07-02 | 2014-10-01 | 张栋 | Anti-theft foundation bolt of overhead transmission line tower |
| CN105485337A (en) * | 2016-01-19 | 2016-04-13 | 陕西中大机械集团有限责任公司 | Locking device of transfer case separating and meshing mechanism |
| CN106382296A (en) * | 2016-11-08 | 2017-02-08 | 徐州建机工程机械有限公司 | Nut looseness-prevention structure |
| CN108071654A (en) * | 2016-11-16 | 2018-05-25 | 孙愉后 | For the locking device of fastener |
| CN106608072A (en) * | 2017-03-08 | 2017-05-03 | 扬力集团股份有限公司 | Air cushion locknut anti-looseness structure for press |
| CN106608072B (en) * | 2017-03-08 | 2018-10-26 | 扬力集团股份有限公司 | Press air cushion locking nut anti-loose structure |
| CN108020496A (en) * | 2017-11-24 | 2018-05-11 | 中山市创艺生化工程有限公司 | A blood cell analyzer with easy disassembly and assembly of counting pool |
| CN109322892A (en) * | 2018-11-05 | 2019-02-12 | 浙江瑞昭科技有限公司 | A kind of bolt and nut component |
| CN109236836A (en) * | 2018-11-16 | 2019-01-18 | 安顺中安安装工程有限公司 | A kind of locking Self tightening device and the method applied to the locking self-tightening of tower crane |
| CN109798408A (en) * | 2019-01-07 | 2019-05-24 | 杭州易明远科技有限公司 | A kind of fire hose clasp device |
| CN109676989A (en) * | 2019-01-30 | 2019-04-26 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press crankshaft-link rod clamp device |
| CN109676989B (en) * | 2019-01-30 | 2020-01-14 | 荣成华东锻压机床股份有限公司 | Fastening device for crankshaft connecting rod of mechanical press |
| CN109773104A (en) * | 2019-01-30 | 2019-05-21 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press screw rod set clamp device and method |
| CN109914819A (en) * | 2019-03-01 | 2019-06-21 | 广东中集建筑制造有限公司 | Transport legs and building module units for building modules |
| CN109914819B (en) * | 2019-03-01 | 2024-04-26 | 广东中集建筑制造有限公司 | Transport legs for building modules and building module devices |
| CN110107582B (en) * | 2019-04-30 | 2021-03-23 | 广东锻压机床厂有限公司 | Connecting rod nut and stud anti-loosening assembly of press machine |
| CN110107582A (en) * | 2019-04-30 | 2019-08-09 | 广东锻压机床厂有限公司 | Press connecting rod nut and stud retention device |
| CN110332206A (en) * | 2019-07-24 | 2019-10-15 | 海盐华胜紧固件有限公司 | A kind of cold-resistant nut assembly of railway |
| CN110821939A (en) * | 2019-11-26 | 2020-02-21 | 陶金波 | Anti-loosening screw rod |
| CN110886759A (en) * | 2019-11-28 | 2020-03-17 | 国家电网有限公司 | A kind of fastening bolt and fastening method for foundation of water inlet ball valve of power station |
| CN112157393A (en) * | 2020-11-10 | 2021-01-01 | 吕新青 | Welding tool and manufacturing process of well type electric furnace |
| CN113107951A (en) * | 2021-04-09 | 2021-07-13 | 中航飞机起落架有限责任公司 | Bolt connection nut anti loosening structure |
| CN114179843A (en) * | 2021-12-03 | 2022-03-15 | 中车唐山机车车辆有限公司 | Traction device, bogie and rail vehicle |
| CN114179844A (en) * | 2021-12-03 | 2022-03-15 | 中车唐山机车车辆有限公司 | Bogie with speed measuring function and railway vehicle |
| CN114179843B (en) * | 2021-12-03 | 2023-08-22 | 中车唐山机车车辆有限公司 | Traction device, bogie and rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180315 Address after: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee after: Double (Deyang) heavy equipment Co., Ltd. Address before: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee before: Erzhong Group (Deyang) Heavy Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |
|
| CX01 | Expiry of patent term |