CN107939811A

CN107939811A - A kind of anticreep derotation screw group

Info

Publication number: CN107939811A
Application number: CN201711140291.4A
Authority: CN
Inventors: 庞群; 李先强
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2018-04-20

Abstract

The invention discloses a kind of anticreep derotation screw group, including a screw and one section of spring that can pack into screw, the screw includes lead screw and cap nut, it is characterized in that：Cap nut lower surface is provided with a round groove, and periphery of the round groove at the top of lead screw, diameter is more slightly larger than lead screw, and round bottom portion of groove, which also has, is arranged with the stepped card slot perpendicular to round groove circumferential edges；The spring has a convolution more than a circle, and the direction of spring convolution and lead screw tighten up a screw convolution direction on the contrary, spring top circle can be packed into round groove circle, and the end of a thread of spring can be sticked into the card slot in groove.

Description

A kind of anticreep derotation screw group

Technical field

The present invention relates to a kind of screw combination, more particularly to it is a kind of have be automatically prevented from the screw combination that derotation loosens.

Background technology

Screw（Outer literary fame：Screw）, it is former using the inclined-plane circular rotating of object and the physics and mathematics of frictional force Reason, fastens the instrument of implements parts by easy stages.Screw is the general saying of fastener, daily pet phrase.Screw is daily Indispensable industrial necessity in life：The minimum screw that such as camera, glasses, clock and watch, electronics use；TV, electricity The general screw of gas product, musical instrument, furniture etc.；As for engineering, building, bridge then using large-scale screw, nut；Traffic tool, Aircraft, electric car, automobile etc. are then used in combination for big primary screw.Screw industrially bears vital task, as long as there is work on the earth Industry, then the function of screw is forever important.Screw is the joint invention in people's production and living over the past thousands of years, is come according to application field See, it is the first major invention of the mankind.

Screw, also someone cry its " screw " [Screw]（Screw）, " screw rod "（Lead screw）.Screw is common name in fact, And screw, lead screw are all mutually distinguishing.Screw is generally wood screw；Be front end it is acuminous that, pitch is larger, It is generally used for fastening wooden part, plastic part.Lead screw is machine screw（Machine screws）, be front end tack that, pitch is smaller, Uniformly, fastening metal, machine part are generally used for.

Screw is industrial necessity indispensable in daily life：Such as camera, glasses, clock and watch, electronics use micro- Type screw；The general screw of TV, electric product, musical instrument, furniture etc.；As for engineering, building, bridge then using large-scale screw, Nut；Traffic tool, aircraft, electric car, automobile etc. are then used in combination for big primary screw.Screw industrially bears vital task, as long as There is industry on the earth, then the function of screw is forever important.

The pattern of screw, whether the Micro screw of glasses or large-scale heavy electrical engineering with king bolt its species very It is more.The precision of screw is usually that 6g grades of screw surfaces are examined to have and are divided into two kinds, and a kind of is before not electroplated after screw produces Examine, another kind is the inspection after screw is electroplated, that is to say, that after screw stiffened, the inspection after screw surface treatment is good.Spiral shell Before not electroplated after silk production is good, we carry out screw the inspection of each side such as size, tolerance.See either with or without reaching national mark Accurate or customer requirement.After screw surface treatment, the screw that we have electroplated is tested, the color and have that main test is electroplated Not bad screw etc..When so we send screw goods to client, it can just come through when client receives.

Screw in and among industrial production and manufacturing, be can't do without, screw is also referred to as rice of industry in daily life. It can be seen that the utilization of screw is extensive.The operation strategies of screw have：Electronic product, engineering goods, digital product, power equipment, machine Electromechanical product.Ship, vehicle, also uses screw in hydraulic engineering, or even chemical experiment.Anyway it is that super more places are all useful Arrive screw.The special precision screw used above such as digital product.DVD, camera, glasses, clock and watch, electronics etc. is used miniature Screw;The general screw of TV, electric product, musical instrument, furniture etc.;As for engineering, building, bridge then using large-scale screw, spiral shell Cap;Traffic tool, aircraft, electric car, automobile etc. are then used in combination for big primary screw.Screw industrially bears vital task, a strategic point There is industry on ball, then the function of screw is forever important.

If we will go to use a screw, then what we first had to do is exactly the performance for understanding this screw, It is exactly its feature, so we can be used in screw most correctly local.Because there is number of types of screw, Among these screws, the performance of each screw is all different, and such screw has in place of different uses.In order to avoid The use screw of our mistakes, we must have certain understanding for the performance of screw, and so we can use screw Most correctly local.

For screw main purpose to make industrial product composition be fixed as one, often occurring in use can not be close between tooth and tooth , excessively firmly locking then screw terminal dialysis or the bad not tight of tooth line etc. fail to reach use condition, be all the precision of quality Problem.Screw is " volume production product ", is not the hand-built art work, in a large amount of productions, to reach the quality of high-accuracy stable And affordable price is supplied to for the purpose of consumer.The precision of screw is usually 6g grades（2 grades, US spec " IFI " is 2A teeth）, The rough spiral shell of construction project is 8g grades（3 grades, " IFI " is 1A teeth）.The value of screw is highly important, have in the world because The bad example for causing automobile factory to go bankrupt of screw quality；Also have because the bad example for causing airplane falling, vehicle to overturn of screw amount Son.

The content of the invention

The fastening problems of screw are related to the future of enterprise and the life of people, for this reason, we have invented a kind of anticreep derotation Nut group, is combined by screw with a spring, achievees the purpose that the anti-rotation of screw is de-.

A kind of anticreep derotation screw group solves the problems, such as to be adopted the technical scheme that：A kind of anticreep derotation screw group includes one A screw and one section of spring that can pack into screw, the screw include lead screw and cap nut, and cap nut lower surface is provided with one A round groove, periphery of the round groove at the top of lead screw, diameter is more slightly larger than lead screw, and round bottom portion of groove, which also has, to be arranged with Perpendicular to the stepped card slot of round groove circumferential edges；The spring has a convolution more than a circle, and spring convolution Direction and lead screw tighten up a screw convolution direction on the contrary, spring top circle can be packed into round groove circle, and the end of a thread of spring It can stick into the card slot in groove.

A kind of beneficial effect of anticreep derotation screw group is：A kind of anticreep derotation screw group is mutually tied using screw with spring Close, the card perpendicular to round groove circumference is provided with by opening a round groove in cap nut bottom, and in round bottom portion of groove Groove, on the contrary, in this way, when stepping up precession screw downwards, spring can not for the spring convolution direction also used and the direction of screw The rotation of screw is hindered, after screwing screw, if because of accident, screw wants derotation to loosen, and spring the end of a thread, which is but sticked into card slot, to be withstood Nut, prevents nut derotation from rotating, it is therefore prevented that the further derotation of screw loosens, safeguarded safety.

Brief description of the drawings

Fig. 1 is a kind of side structure schematic diagram of anticreep derotation screw group.

Fig. 2 is a kind of cap nut lower bottom part disk view of anticreep derotation screw group.

In figure, 1. cap nuts, 2. lead screw, 3. springs, 4. round grooves, 5. card slots.

Embodiment

Make further implementation explanation to a kind of anticreep derotation screw group below in conjunction with the accompanying drawings.

Fig. 1 is a kind of side structure schematic diagram of anticreep derotation screw group.In Fig. 1, in subordinate's lead screw 2 of a screw Portion covers a bit of spring 3.1 lower part of cap nut in Fig. 1 is provided with a round groove 4, the degree portion also card slot 5 of round groove 4 after It is continuous recessed.3 upper top spring the end of a thread of spring of Fig. 1 can just be inside jacking round groove 4, if cap nut 1 rotates, spring wire Head is also possible to stick into card machine groove 5.

In order to be best understood from round groove 4, card slot and lead screw 2, the position relationship of cap nut 1, Fig. 1 is made nine by us Ten degree of our parallel sights rotate, our sight is by vertical 1 baseplane of cap nut.We have seen round groove clearly finally 4 with the relation of miscellaneous part and the relation of internal card slot 5：The card slot 5 of 4 bottom of round groove makees arranged in step shape, and perpendicular to 4 circumference of round groove, this makes 3 the end of a thread of spring have the chance slided into many times in card slot 5 when round groove 4 slides, once card Into in card slot 5, cap nut 1 can only be rotated along the direction that 3 the end of a thread of spring stretches to, if derotation, be withstood by 3 the end of a thread of spring , it is impossible to it is rotated further by.

Claims

1. a kind of anticreep derotation screw group, a kind of anticreep derotation screw group includes a screw and one section of bullet that can pack into screw Spring, the screw include lead screw and cap nut, it is characterized in that：Cap nut lower surface is provided with a round groove, and round is recessed Periphery of the groove at the top of lead screw, diameter is more slightly larger than lead screw, and round bottom portion of groove also has to be arranged with to be justified perpendicular to round groove The stepped card slot of circumferential edges；The spring has convolution more than a circle, and spiral shell in the direction of spring convolution and lead screw The direction of silk convolution is on the contrary, spring top circle can be packed into round groove circle, and the end of a thread of spring can stick into the card in groove In groove.