CN206988270U

CN206988270U - A kind of Novel threaded and device

Info

Publication number: CN206988270U
Application number: CN201720516024.1U
Authority: CN
Inventors: 米建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-10
Filing date: 2017-05-10
Publication date: 2018-02-09
Anticipated expiration: 2027-05-10

Abstract

The purpose of this utility model is to be to provide a kind of Novel threaded and device, specifically there is the screw thread of step in the side of screw thread, it can prevent fastener from loosening, and bolt screw provided with the Novel threaded etc., provide processing method simultaneously, the utility model to achieve the above object, is achieved through the following technical solutions：A kind of Novel threaded, there is step in the side of screw thread, stress surface of its step in screw threads for fastening, its step is deployed from thread root to threaded top, step is in pawl shape, its step is all or part of between thread root and threaded top, is mutually paired the screw thread used and all sets described checknut, can be facilitated in screw thread side processing step using umbrella tooth roller.

Description

A kind of Novel threaded and device

Technical field

Fastening field is the utility model is related to, specifically a kind of Novel threaded and device.

Background technology

Many fields need to use fastener, from machinery, electronics, to all too busy to get away fastener such as agricultural, aviation, fastener In use, because the reasons such as vibrations can produce loosening, using effect is influenceed so that fastening is failed, or even causes serious thing Therefore therefore people are trying every possible means the more strong and reliable fastener of design always for these years, fastener is mainly by screw thread structure Into, it is therefore desirable to more safe and reliable screw thread.

The content of the invention

The purpose of this utility model is to be to provide a kind of Novel threaded and device, specifically has step in the side of screw thread Screw thread, can prevent fastener from loosening, and bolt screw provided with the Novel threaded etc., while provide processing side Method.

The utility model to achieve the above object, is achieved through the following technical solutions：A kind of Novel threaded, in the side of screw thread There is step in face, its step screw threads for fastening stress surface, its step from thread root to threaded top deploy, step is in pawl Shape, its step is all or part of between thread root and threaded top, be mutually paired the screw thread used all set it is described locking Screw thread.

Screw thread can be understood as rotating for axle along a right-angle side of right angled triangle, the hypotenuse volume of right angled triangle Around what is formed on the cylinder, hypotenuse is smooth, and it is also smooth, hypotenuse to wind the screw thread come If step-like, it is also that step-like, smooth inclined-plane easily skids to wind the screw thread come, and the inclined-plane for having step is not easy to beat It is sliding, just as there are the stair to spiral of step compared to one reason of slide of spiraling of no step, therefore set in the side of screw thread Putting step can prevent screw thread from skidding, and then play a part of preventing from loosening；Screw thread fastener it is specifically used in, it is general main Only have a direction to bear pressure, this pressure is acted on fastener by the object fastened and produced, than if any externally threaded The nut of bolt and internal thread, the one side of the screw thread stress of bolt is contacted with nut towards by the one of fastening object after tightening Face, and the screw thread stress of nut be with the thread contact of bolt backwards to by fastener while, both are in opposite direction, mutually For reaction force, step is set on the face of reaction force each other in two such, its mutual frictional force can be increased, prevent pine Dynamic, the process of fastening is close-fitting after first loosening between screw thread, and step-shaped top is crossed because of elastic deformation between screw thread when close-fitting Portion, and because elastic deformation is clamped on step bottom, this screw thread are adapted to mate with identical screw thread and intermeshed use, such as The position of two interaction force contacts is arranged on, can more give play to the effect of this screw thread；The setting of step is typically from screw thread Root deploy to threaded top, i.e., with threaded collar around axle be radially furthered out, deployed with straight line expansion or involute, be Screw thread is set to have the effect for preferably preventing from loosening, it is pawl shape to be threaded step, i.e., step has a face and spiral shell It is acute angle that line face, which tilts, and there is another face perpendicular to flank or to be slightly tilted, interconnection or vacant one between step Set a distance, and be also provided with pawl step in matching used screw thread, both pawls are in opposite direction, intermesh, so if This screw thread is set on supporting bolt and nut, after bolt and nut fastening, the screw thread between bolt and nut is compacted, Step on screw thread intermeshes because pressure is different, prevents to slide between the two and falls back；Because the top ratio of some screw threads It is relatively thin, such as triangle thread, a part of the step between from thread root to top can be only set, be positioned only at a part When step be higher than thread surface, one section close to thread root is provided only on such as triangle thread；It is of the present utility model new Screw thread has step because screw thread is all circular in the shape of a spiral, therefore step can be set to it is small close to bottom of thread size, it is close Threaded top size is big, can also from thread root to top one size.

The screw thread set using same principle, it can be external screw thread or internal thread, can apply in tapping screw, its Screw thread is provided with step from thread root at least one side in threaded top side, and step is pawl shape, so in tapping screw Entered by external force effect after being drilled into part, block the pawl of tapping screw screw thread due to being drilled into the elastic deformation of part, make it It can not reverse.

A kind of bolt pair, including screw bolt and nut, bolt set external screw thread, and nut sets internal thread, and both use with platform, bolt Step is designed with the side of fastening stress with the screw thread of nut, step is pawl shape, and both steps are nibbled each other in the opposite direction Shape, the side of Step Coverage screw bolt and nut stress are closed, nut fastening one side tries orchid, and flange fastening face sets step, and step is Pawl shape, flange is set in nut, flange makes each several part connection more close to by fastener by so setting when fastening Fastening, prevents from loosening.

The utility model can by fixed setting step corresponding with fastener contact surface on fastener, by fastener with Fastener is designed with step, and both steps intermesh, by fastener step using welding or casting method with it is tight Firmware one.

The utility model also provides multiple processing methods, because the step of the utility model screw thread is arranged on screw thread Side, it is impossible to processed with existing rolling depression method, the processing such as laser or ultrasonic wave can be used for the tiny screw thread of size, if Put multiple laser aids while processing can improve efficiency, can use machine cut for Large-scale thread or be rolled in screw thread side The methods of pressure, processes；Such as first prefabricated screw thread, step is stamped out on screw thread in a manner of punching press, is once rotated afterwards per punching press One angle continues punching press, multiple decompressors can be arranged around screw thread simultaneously, not only be set in a screw thread circumference Decompressor is put, can also be set along the multiple circumference stage constructions of screw thread, further improve operating efficiency, same method can make With cutting, multiple topping machanisms are set around screw thread, improve efficiency, another processing method is can to use umbrella tooth hobboing cutter Rolled along screw thread side, step is rolled out in thread surface, while set multiple hobboing cutters simultaneously using to improve efficiency, umbrella tooth is rolled Knife can set umbrella pulley in addition, and umbrella tooth hobboing cutter and umbrella pulley are fixed in base rod, umbrella tooth hobboing cutter and umbrella pulley room There is space, screw thread insertion space, umbrella pulley limitation screw thread, umbrella pulley and umbrella tooth hobboing cutter are clamped screw thread and turned around screw thread It is dynamic, step is processed in thread surface, is adjusted according to threaded collar around diameter and uses different taper hobboing cutters, according to the thickness of thread Adjust umbrella tooth hobboing cutter and umbrella pulley room distance, this method and device both can also machining internal threads with threading.

Novel threaded of the present utility model can also use the method for casting to make, and one method is set in a mould Multiple product units are put, the multiple products of one-shot forming, secondly method is using the method for division processing after casting, i.e., are first cast out One length is multiple semi-finished product containing the utility model screw product length, then segmentation reprocessing finishing shaping, example As processed the bolt containing screw thread of the present invention, a long bolt for containing screw thread of the present invention is first cast out, splits screw rod post-processing Bolt head forms, and can also have multiple bolt heads when casting on long bolt, and bolt head connects another bolt tail, casts Segmentation shaping afterwards, and the nut containing the utility model screw thread is processed, one also can be first cast out containing spiral shell in the utility model The long cylinder of line, it is rear to split shaping and form, it can be used for being recessed or protrude the step of thread surface because the method is casting, This method can also be applied to process other similar devices.

Above-mentioned each processing method is also applied for other screw thread process, can be combined with existing machinery processing unit (plant) Use.

The face of above-mentioned step can be plane, can be arcwall face.

The beneficial effects of the utility model are：Being had using Novel threaded described in the utility model and device conveniently can By the advantages of, easily can be used cooperatively with existing various fastening methods and device, and develop out a variety of fasteners.

Brief description of the drawings

Fig. 1 is with a kind of trapezoidal thread schematic diagram of the present utility model；

Fig. 2 is a kind of processing unit (plant) schematic diagram of the present utility model；

1 is threaded top in figure, and 2 be thread root, and 3 be step inclined-plane, and 4 face directly for step, and 5 be umbrella tooth hobboing cutter, and 6 be rolling Knife, 7 be umbrella pulley, and 8 be base rod.

Embodiment

With reference to specific embodiment, the utility model is expanded on further, Fig. 1 is a kind of trapezoidal thread of the present utility model Schematic diagram, 1 is threaded top in figure, and 2 be thread root, and 3 be step inclined-plane, and 4 face directly for step, has such trapezoidal thread Nut and bolt are used cooperatively, and concrete operating principle has included in this specification, are not repeated.

Fig. 2 is schematic device of the present utility model, and 1 is threaded top in figure, and 2 be thread root, and 5 be umbrella tooth hobboing cutter, 6 It is umbrella pulley for hobboing cutter, 7, bearing is set in umbrella tooth hobboing cutter 5, bearing is set in umbrella pulley 7, umbrella tooth hobboing cutter 5 and umbrella pulley 7 is solid It is scheduled in base rod 8, is relatively rotated with base rod 8 close to screw thread with screw thread, hobboing cutter 6 is in threaded top 1 and screw thread during work Step is rolled between root 2.

Only the utility model is illustrated by selected embodiment, but it will be apparent that the above embodiments For illustrating rather than for limiting the utility model.

Claims

A kind of 1. Novel threaded, for having threaded fastener, it is characterised in that：There is step in the side of screw thread, its step Deployed from thread root to threaded top, step is in pawl shape.
A kind of 2. Novel threaded according to claim 1, it is characterised in that：Its step is arranged on the stress of screw threads for fastening Face.
A kind of 3. Novel threaded according to claim 1, it is characterised in that：Its step is located at from thread root to screw thread top All or part of between portion, step is higher than thread surface when part is set.
A kind of 4. Novel threaded according to claim 1, it is characterised in that：Described screw thread is external screw thread.
A kind of 5. Novel threaded according to claim 1, it is characterised in that：Described screw thread is internal thread.
A kind of 6. Novel threaded pair, it is characterised in that：It is mutually paired the screw thread used and all sets described screw thread.
7. a kind of bolt pair, including screw bolt and nut, bolt sets external screw thread, and nut sets internal thread, and both use with platform, its feature It is：The screw thread of screw bolt and nut side of stress in fastening is designed with step, and step is pawl shape, both step directions Conversely shape is engaged each other.
8. a kind of bolt pair according to claim 7, including screw bolt and nut, it is characterised in that：Nut fastening one side is set Flange, flange fastening one side set step, and step is pawl shape.