CN205298221U

CN205298221U - Dish anti vibration lock washer

Info

Publication number: CN205298221U
Application number: CN201620081977.5U
Authority: CN
Inventors: 刘宝富
Original assignee: Langfang Shuangfei Disk Spring Co Ltd
Current assignee: Langfang Shuangfei Disk Spring Co Ltd
Priority date: 2016-01-27
Filing date: 2016-01-27
Publication date: 2016-06-08
Anticipated expiration: 2026-01-27

Abstract

The utility model provides a dish anti vibration lock washer, includes dish -shaped packing ring body, the last conical surface of dish packing ring body is provided with evenly distributed's radial insection, it is protruding that the lower conical surface of dish packing ring body is provided with evenly distributed's punctiform. Owing to set up the last conical surface and lower two frictional resistance faces of the conical surface, behind this dish anti vibration lock washer atress, can produce powerful interlock friction rather than the workpiece surface who takes place the contact, very big reinforcing the release moment of torsion, can more effectually avoid in the bolt working process potential safety hazard that result in because vibration or other reasons take place not hard uply.

Description

The anti-check washer that shakes of dish

Technical field

The utility model relates to a kind of packing ring, in particular to the anti-check washer that shakes of a kind of dish.

Background technology

Saucer washer is a kind of locking seal washer being designed for bolt and screw and connecting, and is arranged on and needs workpiece two ends tight in advance, provides enough preliminary tensions, thus effectively reduce the risk of seal failure under very little distortion.

What now saucer washer commercially generally can bear that the reasons such as the compression of the abrasion of workpiece, creep, lax, thermal expansion, contraction or sealing member produce is lax, but when being used in the vibration position of equipment, especially on smoother workpiece surface, the locking and anti-weak effect that shakes.

In view of this, special proposition the utility model.

Summary of the invention

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that the anti-check washer that shakes of a kind of dish.

For solving the problems of the technologies described above, the basic design of the utility model employing technical scheme is: the anti-check washer that shakes of a kind of dish, comprise saucer washer body, the upper conical surface of described saucer washer body is provided with equally distributed radial groove, and the lower conical surface of described saucer washer body is provided with equally distributed spot-like projections.

Further, described spot-like projections is half-circle projection.

Further, the semi arch top of described half-circle projection is along described lower conical surface circumferential direction arranged clockwise.

Further, the number of described spot-like projections is set to more than 2.

Preferably, the number of described spot-like projections is set to 6.

After adopting technique scheme, the utility model compared with prior art has following useful effect: owing to being provided with the upper conical surface and the lower conical surface two friction resistance faces, the anti-check washer that shakes of this dish is by after power, the workpiece surface that can come in contact with it produces strong to be engaged friction, enhance release moment of torsion greatly, can more effectively avoid in working bolt process, the potential safety hazard caused because vibration or other reasons occur to loosen.

Accompanying drawing explanation

Fig. 1 is the vertical view of the anti-check washer that shakes of the utility model dish;

Fig. 2 is the upward view of the anti-check washer that shakes of the utility model dish;

Fig. 3 is the sectional view of the anti-check washer that shakes of the utility model dish;

In figure: the upper conical surface of 1-;The radial groove of 2-; The conical surface under 3-; 4-half-circle projection; 5-saucer washer body.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, understands content of the present utility model to help.

As shown in Figures 1 to 3, the anti-check washer that shakes of a kind of dish, comprises saucer washer body 5, and the upper conical surface 1 of described saucer washer body 5 is provided with equally distributed radial groove 2, and the lower conical surface 3 of described saucer washer body 5 is provided with equally distributed spot-like projections.

The anti-check washer that shakes of dish of the present utility model contrasts common saucer washer mutually, radial groove 2 is added on the upper conical surface 1 surface, time mainly in order to make nut or bolt occur oppositely to circle round because of vibration or other reasons, play anti-skidding, locking effect; Spot-like projections is added on the lower conical surface 3 surface, mainly in order to when the lower conical surface 3 is by power, the workpiece surface that can come in contact with it produces strong to be engaged friction, when making saucer washer occur to loosen because of vibration or other reasons, plays anti-skidding, locking effect. By increasing by two friction resistance faces, the anti-check washer that shakes of this dish enhances release moment of torsion greatly, more effectively avoids the potential safety hazard caused in working bolt process because loosening.

As shown in Figure 2, described spot-like projections is half-circle projection 4, and the semi arch top of described half-circle projection 4 is along the described lower conical surface 3 circumferential direction arranged clockwise. Principle according to human engineering mechanics, major part people is right-handed person, twists screw, bolt and nut with the right hand, twists clockwise and can compare smoothly, and therefore general mode of connection, for tighten clockwise, is unscrewed counterclockwise. Half-circle projection 4 is uniformly distributed as shown in Figure 2, when tightening workpiece clockwise, arc top and the workpiece contact surface of half-circle projection 4 are combined closely, clockwise screwing force can produce bigger frictional force, bigger enhancing release moment of torsion, just at last on smoother workpiece surface, also there are well locking and anti-effect of shaking.

Unscrewing clockwise to coordinate, the left hand thread of tightened anti-clockwise is arranged, and the semi arch of half-circle projection 4 can also arrange counterclockwise.

Additionally by research trial, when the number of spot-like projections is set to more than 2, just can obtain enough big frictional force; And the number of spot-like projections is when being set to 6, it is possible to obtain best sealing and locking anti-effect of shaking.

Dish of the present utility model resists the check washer that shakes to be the improved products of common saucer washer, to adapt to the demand of different occasion, the effect of common saucer washer can be played, also the locking anti-effect shaken can be played, it is particularly used in vibration position, its anti-loosing effect is far superior to common saucer washer, the relevant industries such as building, track, metallurgy, wind-powered electricity generation, machinery can be widely used in, not only can use at the slight vibration position of equipment, it is even possible that support the use at strong vibration position and significant points, prevent potential safety hazard.

The above is only preferred implementation of the present utility model; it is noted that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also making some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. the anti-check washer that shakes of dish, comprise saucer washer body (5), the upper conical surface (1) of described saucer washer body (5) is provided with equally distributed radial groove (2), it is characterized in that, the lower conical surface (3) of described saucer washer body (5) is provided with equally distributed spot-like projections.

2. the anti-check washer that shakes of dish as claimed in claim 1, it is characterised in that, described spot-like projections is half-circle projection (4).

3. the anti-check washer that shakes of dish as claimed in claim 2, it is characterised in that, the semi arch top of described half-circle projection (4) is along the described lower conical surface (3) circumferential direction arranged clockwise.

4. the check washer that shakes as anti-in the dish as described in arbitrary in claims 1 to 3, it is characterised in that, the number of described spot-like projections is set to more than 2.

5. the anti-check washer that shakes of dish as claimed in claim 4, it is characterised in that, the number of described spot-like projections is set to 6.