CN218377280U - Novel wedge nut or interior inclined nut - Google Patents

Abstract

The utility model provides a novel wedge nut or interior skew nut, at least one terminal surface one side has a plurality of short bulges of a plurality of high bulges opposite sides, a plurality of high side bulges are the wedge face with a plurality of short side bulges, or at least one terminal surface of nut has the short whole wedge end that protrudes of the high opposite side of one side, the screw thread of nut is standard screw thread, the deviation of the high side of wedge face and short side is greater than zero pitch, the best deviation is between one-ninth pitch to eight-ninth pitch, the maximum deviation is not less than two pitches, how much of deviation depends on the thickness of nut, the standard grade of screw thread, the size of the longest outward flange of nut material elasticity scope and terminal surface, and the whole comprehensive character of the screw thread pitch, not a fixed value, the high opposite side of a plurality of bulges one side, the high side is the wedge face with short side.

Description

Novel wedge nut or interior inclined nut

Technical Field

The utility model relates to the field of machinary, it relates to a wedge nut or interior oblique nut.

Background

The locknut with the existing structure has the defects of complex processing process and generally higher cost, for example, a Japanese haddock locknut, a Swedish Luodi Lao washer, a Shenzhen self-locking king technology self-locking nut, and an application number 201821453377.2 universal combined locknut, etc., a novel wedge nut or an internally inclined nut which is formed by using the above locknut principle through simplification and has the performance close to that of the above anti-loosening nut is adopted, namely the performance of the novel wedge nut is close to that of the above locknut.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a through simplifying a novel wedge nut or interior inclined nut that has the same locking performance or is close locking performance who forms according to current unified locking principle and aim at improving threaded connection structure's stability and reliability, avoid threaded connection structure pine to take off and influence normal work, can simplify manufacturing process simultaneously, reduce the production degree of difficulty and cost.

The utility model provides a novel wedge nut, at least one terminal surface of nut are the short whole protrusion of the high opposite side in one side, and high side is the scarf with short side, and both ends have the terminal surface that high side is the scarf to be parallel to each other with short side, and the screw thread of nut is standard screw thread.

The deviation between the high side and the low side of the wedge surface is larger than zero thread pitch, the optimal deviation is between one ninth thread pitch and one eighth thread pitch, the maximum deviation is not smaller than two thread pitches, and the deviation depends on the thickness of the nut, the standard grade of the thread, the elastic range of the nut material, the size of the longest outer edge of the end surface and the integral comprehensive characteristics of the thread pitch, and is not a fixed value. The preferred wedge surface is a spiral depression, a carved depression, a printed depression or the like or a depression similar to a horseshoe depression to form a rough surface. The preferred wedge surface has a plurality of vertical depressions forming a roughened surface.

And/or one side of at least one end surface of the nut is provided with a plurality of high bulges and the other side is provided with a plurality of low bulges, the high bulges and the low bulges form a wedge surface, and the thread of the nut is a standard thread. The deviation of the plurality of bulges on the high side and the plurality of bulges on the low side of the wedge surface is larger than zero thread pitch, the optimal deviation is between one ninth thread pitch and one ninth eighth thread pitch, the maximum deviation is not smaller than two thread pitches, and the deviation is not a fixed value depending on the thickness of the nut, the standard grade of the thread, the elastic range of the nut material, the size of the longest outer edge of the end surface and the integral comprehensive characteristics of the thread pitch. The protruding side is high and the other side is low, and the high side and the low side form a wedge surface. The preferred protrusions are ratchets, twisting flowers, engraved lines, conical protrusions, printing patterns, triangular bodies, polygonal bodies, convex characters and the like which are distributed with ordered or unordered circumferences similar to horseshoes and increase friction coefficients. The preferred protrusions are ratchets, twisting flowers, engraved lines, conical protrusions, printing patterns, triangular bodies, polygonal bodies, convex characters and the like which are distributed in order or in disorder and vertical to a horseshoe to increase the friction coefficient.

Preferably a flanged wedge nut.

And/or one side of at least one end surface of the nut is provided with a plurality of high bulges and a plane on the other side, the high bulges and the plane are of a hypothetical wedge surface, the end surfaces of the two ends, which are provided with the high sides and the plane side which are of the wedge surfaces, are parallel to each other, and the thread of the nut is a standard thread. The deviation between the high side of the wedge surface and the plane side is larger than zero thread pitch, the optimal deviation is between one ninth thread pitch and one eighth thread pitch, the maximum deviation is not smaller than two thread pitches, and the deviation is not a fixed value, depending on the thickness of the nut, the standard grade of the thread, the elastic range of the nut material, the size of the longest outer edge of the end surface and the integral comprehensive characteristics of the thread pitch.

The preferred nut internal diameter center of above novel wedge nut is asymmetric center, and nut body one side is thick opposite side is thin.

The utility model provides an interior skew nut is ordinary nut and wedge nut double nut combination, or wedge nut and wedge nut double nut combination, and single wedge nut is applicable to the locking of the operating mode of medium pretightning force promptly. The combination of the common nut and the wedge-shaped end is suitable for loosening prevention under the working condition without pretightening force or with smaller pretightening force. The wedge nut and the wedge end combination or the wedge surface fastening workpiece at the other end of the plane at one end of the wedge nut and the common nut combination are applicable to working condition looseness prevention of high pretightening force.

Drawings

FIG. 1 is a side view of a novel wedge nut with multiple protrusions,

figure 2 is a front view of the novel wedge-shaped nut with the multi-ratchet protrusion,

FIG. 3 is a side view of the novel wedge nut with multiple flanges,

figure 4 is a side view of the integrally protruded novel wedge nut,

figure 5 is a front view of the novel wedge-shaped nut with the overall convex spiral recess,

fig. 6 is a side view of the integrally bulged asymmetric center novel wedge nut.

Description of the figures

The nut comprises a nut body 1, a thread outer diameter 2, a thread inner diameter 3, a convex base surface 4, a convex outer diameter 5, a ratchet 6, a wedge surface 7, a flange 8, a spiral recess 9, a nut body thick side 10 and a nut body thin side 11.

Detailed Description

Firstly, as shown in fig. 1, 3, 4 and 6, a bolt penetrates through a workpiece from the space of the workpiece and is installed on the workpiece, a wedge end protrusion 5 faces the workpiece and is installed on a screw rod of the bolt through screw holes of a thread outer diameter 2 and a thread inner diameter 3, a driving device drives a nut body to rotate, the protrusions of ratchets, twist flowers, engraved lines, conical protrusions, printing, triangular bodies, polygonal bodies, convex characters and the like which are distributed similarly to horseshoes are contacted with the workpiece, the driving device drives the nut to rotate continuously, the protrusions of the ratchets, twist flowers, engraved lines, conical protrusions, printing, triangular bodies, polygonal bodies, convex characters and the like which are distributed similarly to the horseshoes rub against the workpiece, the nut body 1 starts to incline, meanwhile, the screw holes of the thread outer diameter 2 and the thread inner diameter 3 are also inclined to be engaged with the thread of the bolt, and a pretensioning torque is achieved or the protrusion base surface 4 is stopped, and the nut is suitable for working conditions with moderate pretensioning force.

The second concrete implementation is that a bolt penetrates through a workpiece and is installed on the workpiece, a wedge end protrusion 5 of a first wedge-shaped nut is installed on a screw rod of the bolt through screw holes of a thread outer diameter 2 and a thread inner diameter 3 towards the workpiece, a driving device drives a nut body to rotate, the protrusions of ratchets, twist-ups, engraved lines, conical protrusions, printing patterns, triangular bodies, polygonal bodies, convex characters and the like are in mutual contact with the workpiece, the driving device drives the nut to rotate continuously, the protrusions of the ratchets, twist-ups, engraved lines, conical protrusions, printing patterns, triangular bodies, polygonal bodies, convex characters and the like which are distributed similar to horseshoes rub against the workpiece, the nut body 1 begins to incline, the screw holes of the thread outer diameter 2 and the thread inner diameter 3 are also inclined to be meshed with the thread of the bolt, and the pretension torque is achieved or the protrusion base surface 4 stops reaching, the second wedge nut wedge end protrusion 5 is installed on a screw rod of the bolt towards the first wedge nut through screw holes of the outer diameter of the thread 2 and the inner diameter of the thread 3, the driving device drives the nut body to rotate, the protrusions of the ratchet, the twist flower, the engraved line, the conical protrusion, the printing, the triangular body, the polygon body, the convex character and the like are contacted with a workpiece, the driving device drives the nut body to continue to rotate, the protrusions of the ratchet, the twist flower, the engraved line, the conical protrusion, the printing, the triangular body, the polygon body, the convex character and the like are rubbed with the wedge nut, the nut body 1 begins to incline, meanwhile, the screw holes of the outer diameter of the thread 2 and the inner diameter of the thread 3 are also inclined to be meshed with the thread of the bolt, the pre-tightening torque is achieved or the protrusion base surface 4 is achieved to stop, and the anti-loosening device is suitable for the working condition with stronger pre-tightening force.

The third concrete implementation is that a bolt penetrates through a workpiece from the air of the workpiece and is installed on the workpiece, the bolt is installed on a screw rod of the bolt through screw holes with the external thread diameter 2 and the internal thread diameter 3 in the common direction, the driving device drives the nut body to rotate to a preset position and is fixed by using a wrench, the wedge end protrusion 5 of the wedge-shaped nut is installed on the screw rod of the bolt through the screw holes with the external thread diameter 2 and the internal thread diameter 3 in the direction of the common nut in the direction of the wedge end protrusion 5, the wedge end protrusion 5 is in contact with the common nut, the driving device drives the nut to continue to rotate, the spiral recess 9 is in friction with the common nut, the nut body 1 begins to incline, meanwhile, the screw holes with the external thread diameter 2 and the internal thread diameter 3 are also inclined to be meshed with the bolt threads, the pre-tightening torque is achieved, or the protrusion base surface 4 is achieved to stop, and the anti-loosening device is suitable for working conditions without pre-tightening force or with smaller pre-tightening force.

Claims (10)

1. The utility model provides a novel wedge nut, its characterized in that, at least one terminal surface one side of nut has a plurality of short protrusions of a plurality of high protrusions opposite sides, and a plurality of high side protrusions are the wedge face with a plurality of short side protrusions, and both ends have the terminal surface that high side and short side are the wedge face to be parallel to each other, and the nut screw thread is standard screw thread, the deviation of wedge face high side and short side is greater than zero pitch, and the best deviation is between one-ninth pitch to eight-ninth pitch, and the maximum deviation is not less than two pitches, and how much of deviation is decided by nut thickness, screw thread standard grade, the size of the elastic scope of nut material and the longest outward flange of terminal surface, and the whole comprehensive character of screw thread pitch, the high opposite side of a plurality of convex protrusions one side is short, and high side and short side are the wedge face.

2. The novel wedge nut of claim 1 wherein the protrusions are ratchet teeth, twist flowers, engraved patterns, conical protrusions, printing, triangular bodies, polygonal bodies, or raised characters that are distributed circumferentially in an orderly or unordered manner to increase the coefficient of friction.

3. The novel wedge nut of claim 1 wherein the protrusions are ratchet teeth, twist flowers, engraved lines, conical protrusions, printing, triangular bodies, polygonal bodies, or raised words that are vertically distributed in order or disorder to increase the coefficient of friction.

4. A novel wedge nut as claimed in claim 1, 2 or 3, which is a flange nut.

5. A novel wedge nut as claimed in claim 1 wherein at least one end face of the nut is an integral projection having a high side and a low side, the high and low sides are wedge faces, the end faces having wedge faces at both ends, the high and low sides, the wedge faces having a difference between the high and low sides greater than zero pitch, the optimum difference being between one ninth and one ninth eight pitches, the maximum difference being no less than two pitches, the difference being determined by the thickness of the nut, the standard grade of the thread, the range of elasticity of the nut material and the size of the longest outer edge of the end face, and the integral combination of the thread pitches.

6. A novel wedge nut as claimed in claim 5, wherein the wedge surface has a spiral depression, a knurled depression, a printed depression, a horseshoe depression or a roughened surface.

7. A novel wedge nut in accordance with claim 5 wherein the wedge surface has a plurality of vertical depressions forming a roughened surface.

8. The novel wedge nut of claim 1 wherein at least one of the end surfaces of the nut has a plurality of flat surfaces with raised sides on the other side, the raised sides being in a hypothetical wedge with the flat surfaces, the end surfaces having tapered surfaces on both sides with raised sides and flat sides, the deviation between the raised sides and the flat surfaces of the wedge being greater than zero pitch, the optimum deviation being between one-ninth and one-ninth eight pitches, the maximum deviation being no less than two pitches, the magnitude of the deviation being determined by the overall combination of the thickness of the nut, the standard grade of the thread, the range of elasticity of the nut material, the size of the longest outer edge of the end surface, and the thread pitch.

9. A novel wedge nut as claimed in claim 1, 5 or 8 wherein the center of the nut inner diameter is the asymmetric center and the nut body is thicker on one side and thinner on the other side.

10. A novel wedge nut as claimed in claim 1, 5 or 8, wherein the internally-inclined nut is a combination of a normal nut and a wedge nut or a combination of a wedge nut and a wedge nut, i.e. a single wedge nut fastens the workpiece, and is suitable for loosening prevention under a medium-pretightening force condition, a combination of a normal nut fastening workpiece and a wedge surface of a wedge nut is suitable for loosening prevention under a non-pretightening force or a low-pretightening force condition, and a combination of a wedge surface fastening workpiece of a wedge nut and a wedge surface of a wedge nut or a combination of a wedge surface fastening workpiece at one end plane of a wedge nut and a normal nut is suitable for loosening prevention under a high-strength pretightening force condition.

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