CN108119496A

CN108119496A - A kind of attachment means

Info

Publication number: CN108119496A
Application number: CN201810123057.9A
Authority: CN
Inventors: 熊业军
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-07
Filing date: 2018-02-07
Publication date: 2018-06-05

Abstract

The present invention provides a kind of attachment means, including nut, screw rod and lock washer, there is the screw rod screw thread to be screwed to by secure component, the nut can be screwed on the screw rod, the lock washer, which has upper and lower surface and centre bore and passes through the centre bore, to be threaded through on the screw rod, it is characterised in that：The upper surface of the lock washer is equipped with the first tooth engaged, and the nut has the composition surface contacted with the lock washer, and the composition surface is equipped with the second tooth engaged for matching with the first tooth engaged and being engaged.A kind of attachment means of the present invention by setting tooth engaged in nut inner surface, and are engaged with the tooth engaged of lock washer, attachment means are under the action of nut and lock washer, relative displacement and loosening are not susceptible to, the cost of material is low, and locking effect is more stable.

Description

A kind of attachment means

Technical field

The present invention relates to fastener areas more particularly to a kind of attachment means.

Background technology

At present, existing lock washer achievees the effect that anti-skidding locking by the top and bottom of lock washer equipped with dentation, This washer increases anti-skidding effect, but the effect unobvious in terms of locking, can be easy vibrating more severe environment It drops, such as on track for a train；There is a kind of gasket construction, using two toothed lock washers, screw is using this Washer is used cooperatively, and reaches locking effect by the occlusion of tooth, and locking effect is apparent, but is usually being used using two washers When installation it is complicated, in the smaller bad installation in place in space, add the man-hour that worker works, the production in the unit interval Efficiency reduces.Bolt easily occurs the displacement of opposite washer, total is caused to loosen when vibrated.

The content of the invention

The purpose of the present invention is to solve the shortcomings of the prior art provide a kind of attachment means.

A kind of attachment means, including nut, screw rod and lock washer, there is the screw rod screw thread to be fastened with being screwed to Component, the nut can be screwed on the screw rod, and the lock washer has upper and lower surface and centre bore and passes through The centre bore is threaded through on the screw rod, and the upper surface of the lock washer is equipped with the first tooth engaged, the nut have with The composition surface of the lock washer contact, the composition surface is equipped with the second tooth engaged for matching with the first tooth engaged and being engaged.

Preferably, the lower surface of the lock washer is equipped with several strip projected parts.

Preferably, first tooth engaged and second tooth engaged are inclined-plane tooth.

Preferably, first tooth engaged and the radially uniform distribution of the second tooth engaged.

Preferably, there is each described first tooth engaged the first crown, the first bottom of the tooth, the first backstop flank and first to slide Moving teeth side, first crown and the first bottom of the tooth are distributed in the slip flank both sides, and described first slides flank from institute It states the first crown to tilt to first bottom of the tooth, the first backstop flank hangs down to the adjacent inclined-plane from first crown There is the second crown, the second bottom of the tooth, the second backstop flank and second to slide for first bottom of the tooth of tooth, each described second tooth engaged Flank, second crown and the second bottom of the tooth are distributed in the slip flank both sides, and described second slides flank described in Second crown is tilted to second bottom of the tooth, and the second backstop flank hangs down to the adjacent inclined-plane tooth from second crown The second bottom of the tooth.

Preferably, described first the angle of inclination of flank and horizontal plane is slided equal to the described second slip flank and horizontal plane Angle of inclination.

Preferably, the angle of the first backstop flank and horizontal plane is equal to the angle of the second backstop flank and horizontal plane Degree.

Preferably, the nut is hex nut, and described is that lock washer is hexagonal washer.

Preferably, first tooth engaged and second tooth engaged are six, and each first tooth engaged corresponds to One seamed edge of the hexagonal washer, each second tooth engaged correspond to a seamed edge of the hex nut.

Beneficial effects of the present invention：A kind of attachment means of the present invention, by setting tooth engaged in nut inner surface, And be engaged with the tooth engaged of lock washer, attachment means are not susceptible to opposite position under the action of nut and lock washer It moves and loosens, the cost of material is low, and locking effect is more stable.

Description of the drawings

Fig. 1 is the assembling structure schematic diagram of present pre-ferred embodiments.

Fig. 2 is the lock washer dimensional structure diagram of present pre-ferred embodiments.

Fig. 3 is the nut dimensional structure diagram of present pre-ferred embodiments.

Mark represents：Screw rod 10, lock washer 11, the first tooth engaged 111, the first crown 1111, the first bottom of the tooth 1112, the One backstop flank 1113, first slides flank 1114, strip projected parts 112, centre bore 113, nut 12, the second tooth engaged 121, the Two crowns 1211, the second bottom of the tooth 1212, the second backstop flank 1213, second slide flank 1214, by secure component 13.

Specific embodiment

The present invention is described in detail below in conjunction with attached drawing.

As shown in Figs. 1-3, a kind of attachment means, for screwing fastening by secure component 13, including nut 12, screw rod 10 and lock washer 11, hexagon can be used in nut 12 and lock washer 11, and there is screw rod 10 screw thread to be fastened with being screwed to On component 13, then load onto lock washer 11 and nut 12 is tightened.Lock washer 11 has upper and lower surface, and lower surface is set There are several strip projected parts 1121, to be contacted with by secure component 13 and generate pressure by 13 surface of secure component when screwing fastening Line, increase friction.Lock washer 11 is equipped with centre bore 113, and lock washer 11 is threaded through by centre bore 113 on screw rod 10.Spiral shell Mother 12 has the composition surface contacted with 11 upper surface of lock washer, and the wherein upper surface of lock washer 11 is equipped with radially uniform distribution The first tooth engaged 111, composition surface is equipped with the second tooth engaged 121 of radially uniform distribution, during assembling, 111 He of the first tooth engaged Second tooth engaged 121 is mutually matched occlusion to lock.

First tooth engaged 111 and the second tooth engaged 121 are inclined-plane tooth, each first tooth engaged 111 has the first tooth It is preced with the 1111, first bottom of the tooth 1112, the first backstop flank 1113, first slides flank 1114, the first crown 1111 and the first bottom of the tooth 1112 are distributed in 1114 both sides of the first slip flank, and the first slip flank 1114 inclines from the first crown 1111 to the first bottom of the tooth 1112 Tiltedly, the first backstop flank 1113 hangs down to the first bottom of the tooth 1112 of adjacent bevel surfaces tooth from the first crown 1111 so that first slides There are one inclination angle alphas with horizontal plane tool for flank 1114₁.First backstop flank 1113 hangs down to adjacent oblique from the first crown 1111 First bottom of the tooth 1112 of face tooth so that the first backstop flank 1113 forms an angle beta with horizontal plane₁.Each second occlusion There is tooth 121 second crown 1211, the second bottom of the tooth 1212, the second backstop flank 1213, second to slide flank 1214, the second crown 1211 and second bottom of the tooth 1212 be distributed in 1214 both sides of the second slip flank, second slide flank 1214 from the second crown 1211 to Second bottom of the tooth 1212 tilts, and the second backstop flank 1213 hangs down to the second bottom of the tooth of adjacent bevel surfaces tooth from the second crown 1211 1212 so that second slides flank 1214, and there are one inclination angle alphas with horizontal plane tool₂.Second backstop flank 1213 is from the second tooth Hat 1211 hangs down to the second bottom of the tooth 1212 of adjacent bevel surfaces tooth so that the second backstop flank 1213 and horizontal plane shape are at an angle β₂。

After assembling, the first slip flank 1114 and second slides flank 1214 and is bonded to each other, α₁With α₂Angle is equal.First 1113 and second backstop flank of backstop flank, 1213 mutual stop, β₁And β₂Angle is equal, generally easy to process, β₁And β₂Angle Degree is preferably designed as 90 degree.

Hexagon can be used in nut 12 and lock washer 11, and the first tooth engaged 111 and the second tooth engaged 121 are at this time 6, and each first tooth engaged 111 and each second tooth engaged 121 correspond to a hexagonal seamed edge.

During assembling, screw rod 10 is screwed by secure component 13, then lock washer 11 is attached on screw rod 10, lower surface Towards by 13 direction of secure component, upper surface is then reversed, and nut 12 is screwed into screw rod 10, and composition surface is towards 11 direction of lock washer, and 1213 mutual backstop of one backstop flank 1113 and the second backstop flank screws fastening, completes assembling.When running into vibration, second stings It closes the second of tooth 121 and slides first slip flank 1114 slide displacement of the flank 1214 compared with the first tooth engaged 111, due to spiral shell Mother 12 carries tooth engaged and second slides angle of inclination there are one flank 1214 and horizontal plane tools, and is slided with lock washer 11 first Moving teeth side 1114 coordinates, and the second slip flank 1214 needs continuous lifting during vibration loosens, and is being raised to the first tooth Reach peak value at hat 1111 and 1211 docking of the second crown, in the process, it is necessary to constantly continue to increase torsion, and usually not Rule vibration can not provide and continue to increase torsion, thus nut 12 can not complete a lifting and the changing of the relative positions is to adjacent tooth position, entirely Fastening structure is able to continue fastening.

More than content is only presently preferred embodiments of the present invention, according to the invention for those of ordinary skill in the art Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications Limitation.

Claims

1. a kind of attachment means, including nut, screw rod and lock washer, there is the screw rod screw thread to be screwed to by fastening part Part, the nut can be screwed on the screw rod, and the lock washer has upper and lower surface and centre bore and passes through institute Centre bore is stated to be threaded through on the screw rod, it is characterised in that：The upper surface of the lock washer is equipped with the first tooth engaged, the spiral shell Mother has the composition surface contacted with the lock washer, and the composition surface is equipped with second for matching with the first tooth engaged and being engaged and stings Close tooth.

2. attachment means according to claim 1, it is characterised in that：The lower surface of the lock washer is equipped with several Shape protrusion.

3. attachment means according to claim 1, it is characterised in that：First tooth engaged and second tooth engaged For inclined-plane tooth.

4. attachment means according to claim 3, it is characterised in that：First tooth engaged and second tooth engaged Radially uniform distribution.

5. attachment means according to claim 3, it is characterised in that：Each described first tooth engaged has the first tooth Hat, the first bottom of the tooth, the first backstop flank and first slide flank, and first crown and the first bottom of the tooth are distributed in the cunning Moving teeth side both sides, the first slip flank are tilted from first crown to first bottom of the tooth, the first backstop flank The first bottom of the tooth of the adjacent inclined-plane tooth is hung down to from first crown, each described second tooth engaged has the second tooth Hat, the second bottom of the tooth, the second backstop flank and second slide flank, and second crown and the second bottom of the tooth are distributed in the cunning Moving teeth side both sides, the second slip flank are tilted from second crown to second bottom of the tooth, the second backstop flank The second bottom of the tooth of the adjacent inclined-plane tooth is hung down to from second crown.

6. attachment means according to claim 5, it is characterised in that：The first slip flank and horizontal plane incline Rake angle is equal to the described second angle of inclination for sliding flank and horizontal plane.

7. attachment means according to claim 5, it is characterised in that：The angle of the first backstop flank and horizontal plane Degree is equal to the angle of the second backstop flank and horizontal plane.

8. attachment means according to claim 1, it is characterised in that：The nut is hex nut, described for locking Washer is hexagonal washer.

9. attachment means according to claim 8, it is characterised in that：First tooth engaged and second tooth engaged It it is six, each first tooth engaged corresponds to a seamed edge of the hexagonal washer, and each second tooth engaged corresponds to One seamed edge of the hex nut.