CN208605478U - A kind of check bolt nut assembly - Google Patents

A kind of check bolt nut assembly Download PDF

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Publication number
CN208605478U
CN208605478U CN201821199543.0U CN201821199543U CN208605478U CN 208605478 U CN208605478 U CN 208605478U CN 201821199543 U CN201821199543 U CN 201821199543U CN 208605478 U CN208605478 U CN 208605478U
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China
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nut
bolt
main
thread
locking
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CN201821199543.0U
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Chinese (zh)
Inventor
宋薇
潘星科
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Test Group Shenzhen Co Ltd
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Test Group Shenzhen Co Ltd
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Abstract

The utility model discloses a kind of check bolt nut assemblies, it is characterised in that including double thread bolt, stop nut, main nut, taper gasket ring.The double thread bolt screw thread different with two sections of diameters and specification, main thread are clockwise metricsystem standard thread, and checknut is anticlockwise trapezoidal thread.Stop nut one end has six valve locking members.Main nut one end has regular hexagon groove, and bottom portion of groove side length is greater than opening side length.Taper gasket ring the upper end abuts six valve locking member of stop nut, it is squeezed when tightening, and deformation occurs and is embedded in the groove of main nut, and main nut and stop nut is made mutually to be affiliated to locking.This bolt and nut component has the locking and mechanical anti-loose ability of structure, is suitble to high-frequency vibration use environment.

Description

A kind of check bolt nut assembly
[technical field]:
The utility model relates to mechanical manufacturing fields, fix particularly for steel constructions such as steel tower, bridge, railway, machinery A kind of check bolt nut assembly.
[background technique]:
In steel tower, metal bridge, railway even mechanical manufacturing field, the bolt and nut component fixed for structure is used very Extensively, the reliability of service performance and stability often directly influence the service life and safety of institute's fixed equipment, The anti-loosening property of middle bolt and nut component is vital index.The bolt and nut used on steel tower requires it to have for a long time Stability, the tightness that the bolt and nut component used on metal bridge, railway not only needs to have long-term, furthermore, it would be desirable to support Anti- vehicle driving bring vibration.Vibration, especially high-frequency vibration environment makes the anti-loosening property of bolt and nut component seem especially It is important, it is too numerous to enumerate due to vibrating the safety accident for causing nut loosening that steel construction loosening is caused to collapse in history.
How nut loosening bolt on is prevented? just never stop thinking since the bright bolt and nut component of human spontaneous It examines.Currently, there are four types of the methods for preventing nut loosening altogether: 1, mechanical locking: to be directly to limit locking using nut retainer The relative rotation of pair of nut.Such as using pin of opening one's mouth, series winding steel wire and stop washer, since nut retainer does not have pretightning force, Locking nut pine when falling back on stop position locking retainer just work, thus, this mode is practiced not locking but is avoided It falls off;2, riveting is rushed locking: using the methods such as point, welding, bonding are rushed after tightening, screw bolt and nut being made to lose relative motion characteristic And become non-disconnectable linking.The defect of this mode is that entire component can only use once, and disassembly is very difficult, it is necessary to be damaged Bolt and nut component can be dismantled;3, rub locking: this is a kind of most widely used locking mode, and this mode is in bolt and nut A normal pressure not changed with external force is generated between (usually double nut), can prevent bolt and nut is opposite from turning to generate one Dynamic frictional force is locking to achieve the purpose that.Such as use elastic washer, double nut, self-locking nut and inserts locking nut;4, Structure is locking: locking structure is locking to achieve the purpose that using the special tectonic of locking nut itself.It is locking currently on the market Nut is the most famous (whole world high-speed rail is all using) with Japanese Hadlock (hardlock) brand, Chinese Tang Shi locking screw Mother also has certain popularity.Wherein Hadlock stop nut, which belongs in friction anti-loosening property, does best, Tang Shi locking screw Although it is locking that mother belongs to structure, because bolt clipping forcee decaying 10% also has certain limitation.
It develops as a result, a kind of not only locking with structure but also there is the completely new bolt and nut component of mechanical anti-loose ability to have Positive effect.The utility model discloses a kind of bolt and nut groups with the locking and mechanical locking dual anti-loosening property of structure Part has the extremely strong locking performance that falls off, and can be widely used for the fastening of the steel constructions such as steel tower, bridge, railway and automobile, high-speed rail, boat Empty space product etc. is mechanically fixed, and can be used as the substitution solution of existing check bolt nut assembly.
[summary of the invention]:
For the locking limitation of existing check bolt nut, the utility model discloses one kind to have structure locking and machine The bolt and nut component of the locking dual anti-loosening property of tool has the extremely strong locking performance that falls off, the shape, structure of the invention and adopts The technical solution taken is as follows:
A kind of check bolt nut assembly, characterized by comprising: double thread bolt (1), stop nut (2), main nut (3), taper gasket ring (4);The double thread bolt (1) screw thread different with two sections of straight Guis and specification, main thread is clockwise The metricsystem standard thread in direction, checknut are anticlockwise trapezoidal thread;Described stop nut (2) one end has Six valve locking members;Described main nut (3) one end has regular hexagon groove, and bottom portion of groove side length is greater than opening side length;It is described Deformation occurs and is embedded in the groove of main nut (3) and reaches by squeezing (2) six valve locking member of stop nut for taper gasket ring (4) Locking is mutually affiliated in main nut (3) and stop nut (2).
The shape and structure of the double thread bolt (1) are as shown in Figure 2: double thread bolt (1) has two sections of diameters and rule The different screw thread of lattice, main thread are clockwise metricsystem standard thread, and checknut is anticlockwise trapezoidal Screw thread;Main thread is located under checknut, and the diameter of main thread is greater than checknut, is used for precession main nut (3);Checknut Straight Gui and stop nut (2) internal thread diameter it is mating, threads per inch thread density be greater than main thread, for precession it is locking Nut (2).The main thread precession direction different with checknut and specification, make to loosen active force is opposite, to loosen stroke different from And reach the locking purpose of structure.
The shape and structure of the stop nut (2) are as shown in Figure 3: stop nut (2) one end has six valve locking members, Every valve locking member is located at the edge direction of hexagon stop nut (2), in have the gap and be separated from each other, along tool in every valve locking member Have taper contract face, there is scarf in outer, can be freely accessible to when outer diameter is undeformed in the groove of main nut (3), when its by Outside enlargement deformation when the cone of taper gasket ring (4) is to powerful extruding force, until outer scarf is recessed against main nut (3) hexagon Slot inner edge face.
The shape and structure of the main nut (3) are as shown in Figure 4: main nut (3) height is big, reaches double thread bolt (1) 2/3rds of main thread height, to increase fixed forced area, as long as the main thread of main nut (3) and double thread bolt (1) Contact, which reaches main nut (3) half height or more, just can reach component absolutely fixed riveting power.Main nut (3) one end has Regular hexagon groove, bottom portion of groove side length are greater than opening side length.The shape and structure of the taper gasket ring (4) are as shown in Figure 5: cone Shape gasket ring (4) bottom edge perimeter is greater than top perimeter and forms the conical surface, the outside side of bottom edge perimeter size tangent and main nut (3) groove Long, the height of taper gasket ring (4) is consistent with depth of groove, can free in and out groove.Bore the internal diameter and double thread to gasket ring (4) The checknut internal diameter of bolt (1) agrees with.When tightening, taper gasket ring (4) squeezes six valve locking members of stop nut (2) outwardly Deformation occurs, and locking main nut (3) groove reaches mechanical locking purpose.
Helpfulness effect:
This anti-loosening bolt and nut component has the locking and mechanical locking dual anti-loosening property of structure, has extremely strong antivibration It loosens and falls performance, can be widely used for the machine of the fastening of the steel constructions such as steel tower, bridge, railway and automobile, high-speed rail, Aerospace Products etc. Tool is fixed, and can be used as the substitution solution of existing check bolt nut assembly.
[Detailed description of the invention]
Fig. 1: the utility model stereogram exploded view: 1 double thread bolt;2 stop nuts;3 main nuts;4 taper gasket rings.
Fig. 2: the utility model double thread bolt front view.
Fig. 3: the utility model stop nut stereo amplification figure.
Fig. 4: the utility model main nut stereo amplification figure.
Fig. 5: the utility model taper gasket ring stereo amplification figure.
Fig. 6: the utility model assembly uses schematic diagram.
[specific embodiment]
It is described below in conjunction with principle and feature of the attached drawing to this anti-loosening bolt and nut component, example is served only for It explains the utility model, is not intended to limit the use scope of the utility model.
Example 1
On certain across valley high-speed rail steel truss bridge, two blocks of steel plates of fixed riveted will be needed to stack, the bolt being aligned above it Then hole selects this check bolt nut assembly of appropriate size, be inserted into double thread bolt (1) out of steel plate bolt hole, set It is tightened clockwise into main nut (3) and using torque spanner, it is ensured that (3) 2/3rds or more height of main nut and double thread Main thread on bolt (1) agrees with, and then packs into taper gasket ring (4) and is placed in the groove of main nut (3), reuses torque spanner Stop nut (2) are screwed into counterclockwise, with the continuous precession of stop nut (2), the taper contract face rate on edge in six valve locking members Taper gasket ring is first contacted, the precessing force of stop nut (2) is transformed into extruding force outwardly, six valve locking members by taper gasket ring Stress enlargement deformation enters in the regular hexagon groove of main nut (3), and until its outer, beveling face contact compresses main nut (3) six Side connected in star inner edge face.Deformation occurs and is embedded in the groove of main nut (3) and reaches main nut for six valve locking member of stop nut (3) locking, never becoming loose are mutually affiliated to stop nut (2).Assembly using effect schematic diagram such as Fig. 6 of the utility model.
Example 2
For fixing the vibration reduction support bar of offroad vehicle suspension: automobile walks one thousand li a day, and tire is brought outstanding by hogwallow The vibration of frame is very severe, and the riding comfort of driver and passenger is mainly reached by the filtering of vibration insulating system, offroad vehicle Due to often to travel in non-paving ground, the vibration that damper strut is subject to requires the bolt and nut component of fixed buffer Anti-loose ability of antivibration is especially high, best never becoming loose, once because anchor bolt nut loosens, it is possible to lead to car crash Serious consequence, the utility model is because locking with mechanical locking dual anti-loosening property with structure, nut caused by anti-vibration Loosening ability is superpower, so be highly suitable for using on automobile, the especially high position of vibration frequency and oscillation intensity.
Above-described embodiment is only for illustration of the utility model, and is not the limitation to the utility model patent;It should , it is noted that for those of ordinary skill in the art, in the case where not departing from the utility model conception range, can also do Various change and modification out, these are all within the protection scope of the present invention;Therefore, all with the utility model claims model Done equivalent changes and modifications are enclosed, should belong to the coverage area of the utility model claims.

Claims (1)

1. a kind of check bolt nut assembly, characterized by comprising: double thread bolt (1), stop nut (2), main nut (3), taper gasket ring (4);The double thread bolt (1) screw thread different with two sections of diameters and specification, main thread is clockwise The metricsystem standard thread in direction, checknut are anticlockwise trapezoidal thread;Described stop nut (2) one end has Six valve locking members;Described main nut (3) one end has regular hexagon groove, and bottom portion of groove side length is greater than opening side length;It is described Deformation occurs and is embedded in the groove of main nut (3) and reaches by squeezing (2) six valve locking member of stop nut for taper gasket ring (4) Locking is mutually affiliated in main nut (3) and stop nut (2).
CN201821199543.0U 2018-07-23 2018-07-23 A kind of check bolt nut assembly Active CN208605478U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821199543.0U CN208605478U (en) 2018-07-23 2018-07-23 A kind of check bolt nut assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821199543.0U CN208605478U (en) 2018-07-23 2018-07-23 A kind of check bolt nut assembly

Publications (1)

Publication Number Publication Date
CN208605478U true CN208605478U (en) 2019-03-15

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Application Number Title Priority Date Filing Date
CN201821199543.0U Active CN208605478U (en) 2018-07-23 2018-07-23 A kind of check bolt nut assembly

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CN (1) CN208605478U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112268058A (en) * 2020-10-20 2021-01-26 苏州苏荣精密五金有限公司 Novel double-prevention nut and processing technology thereof
CN112496249A (en) * 2020-11-11 2021-03-16 嘉兴联控汽车部件有限公司 Processing technology of high-temperature-resistant anti-loosening bolt
CN112727895A (en) * 2020-12-22 2021-04-30 中国北方发动机研究所(天津) Bolt and nut connection anti-loosening locking device and anti-loosening measure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112268058A (en) * 2020-10-20 2021-01-26 苏州苏荣精密五金有限公司 Novel double-prevention nut and processing technology thereof
CN112496249A (en) * 2020-11-11 2021-03-16 嘉兴联控汽车部件有限公司 Processing technology of high-temperature-resistant anti-loosening bolt
CN112727895A (en) * 2020-12-22 2021-04-30 中国北方发动机研究所(天津) Bolt and nut connection anti-loosening locking device and anti-loosening measure

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