CN205533703U - Check bolt device - Google Patents
Check bolt device Download PDFInfo
- Publication number
- CN205533703U CN205533703U CN201620213860.8U CN201620213860U CN205533703U CN 205533703 U CN205533703 U CN 205533703U CN 201620213860 U CN201620213860 U CN 201620213860U CN 205533703 U CN205533703 U CN 205533703U
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- CN
- China
- Prior art keywords
- bolt
- looseness
- loose
- proof sleeve
- nut
- Prior art date
- 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 - Fee Related
Links
- 238000009434 installation Methods 0.000 claims description 3
- 210000000515 tooth Anatomy 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model provides a check bolt device relates to mechanical technical field, including a bolt, an or and nut, an or and fixing clip, its characterized in that still includes a locking cover, have and mesh nested first side in branch circumference position such as a with the bolt head or nut, and and screw rod, or fixing clip, or by the fastener in the nested second side of branch circumference position such as b meshing, an and b are the mutual prime rwmbers, the meshing space free angle sum of first side and second side is not less than 360 products divided by ab, fastening bolt or and nut, the first side and the second side of the locking cover of meshing embedding simultaneously, can realize that the bolt is never not hard up, but can portably unscrew when overhauing. Need not change original regular bolt and keep installing locking device under tighten torque's the condition additional on the existing equipment and just to ensure that the bolt never becomes flexible, loaded down with trivial details and reduce cost that release equipment was reset.
Description
Technical field
This utility model relates to field of mechanical technique, is specifically related to the Anti-looseness bolt device of the securing members such as a kind of bolt, nut and screw.
Background technology
Bolt, screw are the class machine components that application is extremely wide, each parts can be connected to become the machinery equipment realizing various function.But, when the equipment at bolt place is affected by various operating conditions, part bolt occurs to loosen, and even comes off, thus causes equipment fault even field accident.When bolt at power system power transmission and transforming equipment, railway and the visual plant such as locomotive, Aero-Space, especially key position occurs to loosen, loss often reaches hundreds thousand of even several with more than ten million yuan.The safe and reliable connection realizing bolt has the most great economic worth and social meaning.
Through retrieval, in China, application relates to the patent of bolt just more than 10,000.Screw retention problem is paid close attention to the most widely, has numerous company and technical staff carrying out the technical research preventing bolt looseness.Although numerous technological innovations relating to bolt improve the anti-loosening property of bolt to a certain extent, but there is also the weak point such as economy, practicality in existing solution.
More locking solution is attempt to the frictional force of elevator bolt and nut, reduces the probability loosened, as utilized spring washer, pad, double nut, nylon ring locking nut etc..Rub locking simplicity, but unreliable.Frictional force is multiplied by pressure equal to coefficient of friction.One class loosing Prevention Technology scheme is to improve the coefficient of friction of contact surface, as changed the degree of roughness of contact surface, until one of them contact surface is designed to dentation；Or use, at contact surface, the material that coefficient of friction is bigger, such as macromolecular material, nylon etc..This kind of loosing Prevention Technology scheme to a certain degree reduces the probability of bolt looseness in some technical fields, but fails to accomplish to guarantee to loosen.One class loosing Prevention Technology scheme is to increase the pressure of contact surface, and source pressure is in the stress of material, and substantially bolt pressure when tightening can increase, but when pressure is excessive, material can occur plastic deformation to lose stress, is commonly called as sliding tooth；Under operating condition, heat aging and oscillating aging and material aging also can reduce the stress of material, so that anti-loosing effect declines.Using and depend on the technical scheme that frictional force is locking, by fastening apparatus intense vibration, pressurized tension etc. when the fastening force applied more than bolt by the active force being perpendicular to bolt axis direction by fastening apparatus, the probability of bolt looseness is greatly increased.
One class method more reliably is that machinery is locking, as utilized split pin, locked spacer, band wing pad etc..Machinery is locking can obtain the active force enough resisting bolt looseness, and good mechanical realization can realize guaranteeing bolt to avoid further and loosen trend.The locking orientation being disadvantageous in that bolt fastens of Current mechanical is limited, is typically only capable to the orientation circumference 360 ° to ten/2nd 1/2nd.Even with the technical scheme in 12 cyclotomy weeks, 30 ° of angles of difference, adjacent two stop orientation, causing bolt often to fail to be tightened to specified Tightening moment, or exceed Tightening moment, in many occasions, this is unallowed.
Such as wire drainage plate connecting bolt on high pressure overhead power line, expose to the sun and rain decades, and wind swings and vibration, and operating condition very severe, bolt happens occasionally loosening.If bolt occurs to loosen, causing two pieces of drainage plate loose contacts overlapped, there is bigger contact resistance, when logical super-high-current, caloric value is big, causes wire clamp to generate heat, and great even urgent defect occurs, may cause line-outage contingency, cause large area blackout.In order to avoid the generation of large area blackout, operation power unit need to spend a large amount of manpower and materials operation maintenance, and including the fastening bolt that periodically has a power failure, cycle artificial line walking even helicopter line walking carries out infrared detection to find that cable clip bolt loosens hidden danger in time.Some rely on and promote the locking technology of frictional force and claim that can add the auxiliary connection of spring washer than existing galvanizing nut more can prevent from loosening, but owing to it can not stop to loosen, as long as there is also one thousandth or even ten thousand/ probability bolt looseness occurs, periodically fastening and cycle detection is still needed.And, its structure used, material and surface anticorrosion can not meet open air and expose to the sun and rain decades, and also causing can not large scale application.Some use the locking technology of mechanical means, although reliability is higher, but can not meet the in addition stop when bolt is fastened to rated moment just.If fastening torque of bolt is not enough, then the drainage plate of two pieces of overlap joints cannot be in close contact, and there is bigger contact resistance.Same, when bolt is screwed to rated moment, when the orientation residing for nut or bolt head is not just at 30 ° of stop orientation, angle of difference, it is difficult to install.
The most such as wire on high pressure overhead power line and the damper on ground wire, be arranged on the position that vibration is the most violent, is susceptible to loosen and shift so that damper loses vibration-isolating effect, recovers installation not in time and can cause wire and ground wire broken string, and consequence is serious.And the cost of work high above the ground periodic maintenance and trouble shooting is the highest.
Similar situation is also present in railroad track and locomotive, automobile, the equipment such as wind power generation stepped, in order to reduce the risk of loss that bolt looseness brings, needs to put into a large amount of manpower and materials and carries out operation maintenance.Aerospace equipment, once gets loose in the high vibration of emission process, and consequence is serious, it is important to we are not provided that the fastening in later stage maintains, and is to ensure that the reliability requirement of bolt and does not loosens.
Prior art has employing anaerobic adhesive bonding agent in realization to the method that bolt is the most locking, can be highly difficult when needs equipment opens maintenance.
No matter more newly-designed check bolt performances are the most superior, can be applied on new equipment, but for flood tide in the world at the equipment of operation, screw retention problem still exists.And change bolt and often relate to disassembled equipment refitting, complex process, interruption operation hours is long, and cost is significantly larger than bolt itself.
A kind of bolt just guaranteeing in the orientation being screwed to rated moment and will not loosening can be designed, be not required to change original plain bolt on existing and can prevent bolt looseness, to exempt the loaded down with trivial details and cost of equipment refitting.Although the technological means of current screw retention is numerous, for prior art, it is still that a great the most universal technical barrier not solved for many years.
Utility model content
This utility model purpose is to provide a kind of Anti-looseness bolt device, and the orientation being just screwed to rated moment at bolt is mechanically fixed, it is ensured that never becoming loose, but can simplicity turn on when maintenance；Install locking device additional in the case of being not required on existing change original plain bolt and keep Tightening moment and ensure that bolt never becoming loose, exempt the loaded down with trivial details of equipment refitting and reduce cost, can again simplicity turn on when maintenance.
To achieve these goals, this utility model one Anti-looseness bolt device, including a bolt, or and a nut, or and a fixing card, characterized by further comprising a loose-proof sleeve, loose-proof sleeve has the first side engaging nesting with bolt head or nut in a circumference in equal parts orientation, and and screw rod, or fix card, or by securing member in the second side of b circumference in equal parts orientation engagement nesting, a Yu b is mutual prime rwmber, the engagement space free angle sum of the first side and the second side is not less than 360 ° of products divided by ab, fastening bolt or and nut, it is simultaneously engaged the first side and the second side embedding loose-proof sleeve, bolt looseness can be stoped.
Above-mentioned loose-proof sleeve, the first side includes hexagon borehole jack, or dodecagon borehole jack, entangles hexagon bolt head or hex nut.
Above-mentioned loose-proof sleeve, the first side includes a ring-type internal tooth of circumference in equal parts, the nested bolt head of corresponding engagement or 1 to a external tooth of nut flange.
Above-mentioned loose-proof sleeve, screw rod tail end is entangled in the second side, is positive b dihedral borehole jack, and corresponding screw rod tail end is positive b cylinder.
Above-mentioned loose-proof sleeve, the second side includes b ring-type internal tooth of circumference in equal parts, 1 to b ring-type external tooth of the nested screw rod tail end of corresponding engagement.
Above-mentioned loose-proof sleeve, the second side includes b ring-type external tooth of circumference in equal parts, engages with the ring-type internal tooth of fixing card.
Above-mentioned fixing card with engaged fixing by concaveconvex shape by securing member.
Above-mentioned fixing card blocks screw head and the nut of a bolt simultaneously, or blocks plural bolt simultaneously.
Above-mentioned fixing card engages fixing with the groove of screw rod by concaveconvex shape.
Above-mentioned loose-proof sleeve is after installation puts in place and screw rod, fixing card or had ratchet to fix between securing member.
The beneficial effect that this utility model can realize: 1, make use of two sides of this intermediate link of loose-proof sleeve cleverly is the engagement of mutual prime rwmber, is achieved that the most possible engagement orientation in the case of total number of teeth in engagement is minimum.Such as the first side 12 circumference in equal parts, the second side 13 circumference in equal parts, 156 circumference in equal parts can be combined into, as long as the engagement space free angle of 2.3 ° can be achieved with bolt and carries out mechanical type at arbitrary orientation and secure.Even if the fixing bolt of prior art 12 circumference in equal parts engagement, it is also desirable to just can be fixed at interval of the orientation of 30 °, cause bolt to be just difficult to being fastened to rated moment to carry out mechanical type and fix.2, both may insure that bolt never becoming loose, simplicity can turn on when maintenance again.3, install locking device additional in the case of being not required on existing change original plain bolt and keep Tightening moment and ensure that bolt never becoming loose, exempt the loaded down with trivial details and cost of equipment refitting, can again simplicity turn on when maintenance.4, under realizing the technical support guaranteeing bolt never becoming loose, bolted non-maintaining reliability service will be realized, both can avoid the causality loss caused because of bolt looseness, a large amount of O&M cost can be saved again.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Anti-looseness bolt device of the present utility model；
Fig. 2 is the structural representation that a kind of Anti-looseness bolt device of the present utility model is applied to wire clamp；
Fig. 3 is the structural representation of the shaped grooved Anti-looseness bolt device of screw rod of the present utility model；
Fig. 4 is the structural representation of packing ring fixed pattern Anti-looseness bolt device of the present utility model.
Detailed description of the invention
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1, a kind of structural representation of the Anti-looseness bolt device of the present embodiment, card 3 is fixed including a bolt 2, characterized by further comprising a loose-proof sleeve 1, first side dodecagon hole 4 of loose-proof sleeve 1, engage nesting, and the second side ring shape external tooth 5 with bolt 2 head in 12 circumference in equal parts orientation, engage nesting with the ring-type internal tooth 6 of fixing card 3 in 11 circumference in equal parts orientation.12 and 11 is mutual prime rwmber, and product is 132.The engagement space free angle sum of the first side and the second side is not less than 360 ° divided by 132, and i.e. 2.7 °, fastening bolt 2, it is possible to achieve be simultaneously engaged the first side and the second side embedding loose-proof sleeve, prevention bolt 2 loosens.
As shown in Figure 2, a kind of Anti-looseness bolt device of the present embodiment is applied to the structural representation of wire clamp, including 2, four nuts 7 of four bolts, one fixing card 3 entangles four nuts 7 through four loose-proof sleeves 1, one fixing card 8 entangles four bolts 2 through four loose-proof sleeves 1, fixing card 3 docks clamping with fixing card 8, encases wire clamp 9.First side hexagon hole of loose-proof sleeve 1, engages nesting, and the second side ring shape external tooth with bolt 2 head and nut 7 in 6 circumference in equal parts orientation, engages nesting with the ring-type internal tooth of fixing card 3 and fixing card 8 in 11 circumference in equal parts orientation.6 and 11 is mutual prime rwmber, and product is 66.The engagement space free angle sum of the first side and the second side not less than 360 ° divided by 66, i.e. 5.4 °, fastening bolt 2 and nut 7, it is possible to achieve be simultaneously engaged and embed the first side of loose-proof sleeve and the second side, stop bolt 2 and nut 7 to loosen.
As shown in Figure 3, a kind of structural representation of the shaped grooved Anti-looseness bolt device of screw rod of the present embodiment, including bolt 2, nut 7, characterized by further comprising a loose-proof sleeve 1, first side of loose-proof sleeve 1 is dodecagon borehole jack, engage nesting with nut 7 in 12 circumference in equal parts orientation, and the second side includes 7 annular resilient internal tooths, engage nesting with the screw tip 4 of bolt 2 at 7 circumference in equal parts orientation flutings.12 and 7 is mutual prime rwmber, and product is 84.The engagement space free angle sum of the first side and the second side not less than 360 ° divided by 84, i.e. 4.3 °.Fastening bolt 2, it is possible to achieve be simultaneously engaged the first side and the second side embedding loose-proof sleeve, in wherein 4 internal tooths of loose-proof sleeve 1 insert the fluting of bolt 2,3 internal tooths bend to the fixing screw thread that withstands of ratchet, and prevention bolt 2 loosens.
As shown in Figure 4, a kind of structural representation of the packing ring fixed pattern Anti-looseness bolt device of the present embodiment, including bolt 2, loose-proof sleeve 1, first side of loose-proof sleeve 1 is dodecagon hole 4, nesting is engaged in 12 circumference in equal parts orientation with the screw head of bolt 2, and second side be 13 ring-type external tooths 5, engage nesting with lateral 13 double wedges 6 of packing ring 3 in 13 circumference in equal parts orientation, packing ring 3 also has 4 perverted double wedges to be connected with being engaged by securing member.12 and 13 is mutual prime rwmber, and product is 156.The engagement space free angle sum of the first side and the second side not less than 360 ° divided by 156, i.e. 2.3 °.Fastening bolt 2, it is possible to achieve be simultaneously engaged the first side and the second side embedding loose-proof sleeve, the lateral double wedge of at least one of which 6 of packing ring 3 is curved inwardly, stops loose-proof sleeve 1 to get loose.Loose-proof sleeve 1 stops bolt 2 to loosen together with packing ring 3.
The above-mentioned case that is embodied as mainly indicates that the invention thought of this patent, for being combined with other components and parts further on the basis of this utility model thought, or processing and secure fit etc., be no longer described in detail, be not offered as embodiment of the present utility model and not exclusively describe.More embodiment can also be had based on technical characteristics of the present utility model; including the technical scheme that the first side and the second side use various existing known technologies be engaged; numerous to list herein, as long as combine and realize bolt by the orientation that engages of loose-proof sleeve the first side and the second side mutual prime rwmber and fall within protection domain of the present utility model in the technical scheme that arbitrary orientation carries out being mechanically fixed.
Claims (10)
1. an Anti-looseness bolt device, including a bolt, characterized by further comprising a loose-proof sleeve, loose-proof sleeve has the first side engaging nesting with bolt head or a nut in a circumference in equal parts orientation, and fix, with screw rod or one, the second side blocked or engaged nesting by securing member in b circumference in equal parts orientation, a Yu b is mutual prime rwmber, the engagement space free angle sum of the first side and the second side is not less than 360 ° of products divided by ab, fastening bolt, it is simultaneously engaged the first side and the second side embedding loose-proof sleeve, stops bolt looseness.
Anti-looseness bolt device the most according to claim 1, is characterized in that described loose-proof sleeve the first side includes hexagon borehole jack, or dodecagon borehole jack, entangles hexagon bolt head or hex nut.
Anti-looseness bolt device the most according to claim 1, is characterized in that described loose-proof sleeve the first side includes a ring-type internal tooth of circumference in equal parts, the nested bolt head of corresponding engagement or 1 to a external tooth of nut flange.
Anti-looseness bolt device the most according to claim 1, is characterized in that screw rod tail end is entangled in described loose-proof sleeve the second side, is positive b dihedral borehole jack, and corresponding screw rod tail end is positive b cylinder.
Anti-looseness bolt device the most according to claim 1, is characterized in that described loose-proof sleeve the second side includes b ring-type internal tooth of circumference in equal parts, 1 to b ring-type external tooth of the nested screw rod tail end of corresponding engagement.
Anti-looseness bolt device the most according to claim 1, is characterized in that described loose-proof sleeve the second side includes b ring-type external tooth of circumference in equal parts, engages with the ring-type internal tooth of fixing card.
Anti-looseness bolt device the most according to claim 6, be is characterized in that described fixing card and is engaged by concaveconvex shape fixing by securing member.
Anti-looseness bolt device the most according to claim 6, is characterized in that described fixing card blocks screw head and the nut of a bolt simultaneously, or blocks plural bolt simultaneously.
Anti-looseness bolt device the most according to claim 6, is characterized in that described fixing card engages fixing with the groove of screw rod by concaveconvex shape.
Anti-looseness bolt device the most according to claim 1, is characterized in that described loose-proof sleeve is after installation puts in place and screw rod, fixing card or had ratchet to fix between securing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213860.8U CN205533703U (en) | 2016-03-20 | 2016-03-20 | Check bolt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213860.8U CN205533703U (en) | 2016-03-20 | 2016-03-20 | Check bolt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533703U true CN205533703U (en) | 2016-08-31 |
Family
ID=56783349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620213860.8U Expired - Fee Related CN205533703U (en) | 2016-03-20 | 2016-03-20 | Check bolt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533703U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202061A (en) * | 2016-03-20 | 2017-09-26 | 深圳带路科技有限公司 | A kind of Anti-looseness bolt device |
| CN110873112A (en) * | 2018-09-04 | 2020-03-10 | 李瑛� | Anti-loosening method for fastening screw in stepped hole, anti-loosening hole and anti-loosening bolt |
| CN111757988A (en) * | 2018-02-20 | 2020-10-09 | Jpb系统公司 | Holding device for a threaded component, in particular for a nut |
| CN112604251A (en) * | 2021-01-21 | 2021-04-06 | 烟台大学 | Soldier's pang ball training ware with anti-drop function |
-
2016
- 2016-03-20 CN CN201620213860.8U patent/CN205533703U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202061A (en) * | 2016-03-20 | 2017-09-26 | 深圳带路科技有限公司 | A kind of Anti-looseness bolt device |
| CN111757988A (en) * | 2018-02-20 | 2020-10-09 | Jpb系统公司 | Holding device for a threaded component, in particular for a nut |
| US11767874B2 (en) | 2018-02-20 | 2023-09-26 | Jpb Systeme | Retaining device for a threaded member, in particular for a nut |
| CN110873112A (en) * | 2018-09-04 | 2020-03-10 | 李瑛� | Anti-loosening method for fastening screw in stepped hole, anti-loosening hole and anti-loosening bolt |
| CN112604251A (en) * | 2021-01-21 | 2021-04-06 | 烟台大学 | Soldier's pang ball training ware with anti-drop function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |