CN217603131U

CN217603131U - Anti-loosening force-gathering nut

Info

Publication number: CN217603131U
Application number: CN202221291950.0U
Authority: CN
Inventors: 曹正
Original assignee: Ningyang Shenghui Machinery Parts Processing Co ltd
Current assignee: Ningyang Shenghui Machinery Parts Processing Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-10-18
Anticipated expiration: 2032-05-26

Abstract

An anti-loosening and force-gathering nut solves the problems that the existing anti-loosening nut is not ideal in anti-loosening effect and loose. The nut comprises a nut A and a nut B, wherein the nut A is provided with an inner thread and an outer thread, the nut B is provided with a first-order thread and a second-order thread, the first-order thread and the second-order thread are in a step shape, and the second-order thread is in threaded connection with the outer thread of the nut A. The utility model discloses novel structure thinks about ingeniously, and processing is convenient, and is different through the inclination between the two of first order silk and second order silk to make and produce bigger effort, can effectually avoid the emergence of pine emergence of taking off the phenomenon. The utility model discloses a strength of double inclination product, this is the advantage that is distinguished from all other nuts, including all nuts of Japan hadamard rocknut the most core principle is that the strength of inclination is just single degree of inclination, the utility model discloses a nut historical great innovation.

Description

Anti-loosening force-gathering nut

Technical Field

The utility model belongs to the technical field of the locking technique of nut auto-lock and specifically relates to an anti-loosening gathers power nut.

Background

In parts needing screw fastening, such as machinery, iron furnace rails and the like, nuts have the risk of loosening due to mechanical vibration, a large amount of inspection and maintenance cost needs to be invested, and locknuts are adopted in high-end facilities, but the possibility of loosening still exists. At present, the Japanese Hadelock nut is advanced, the principle is that the eccentric inclination of the nut is utilized to generate locking force, the nut is ideal for preventing loosening, but the processing difficulty is relatively complex, and the performance can be further improved.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a locking pine gathers power nut, and the effectual present locking pine nut processing of having solved is complicated, and the performance remains the problem that improves.

In order to achieve the purpose, the utility model discloses a A nut and B nut, A nut are equipped with internal thread and outer silk, and the B nut is equipped with first-order silk and second order silk, and first-order silk and second order silk are the echelonment, the outer silk threaded connection of second order silk and A nut.

Preferably, the inclination of the inner wire and the inclination of the outer wire of the nut A are different.

Preferably, the inner thread inclination of the nut A is larger than the outer thread inclination of the nut A.

Preferably, the inclination of the first-order wire and the inclination of the second-order wire of the nut B are different.

Preferably, the inclination of the first-order wire of the B nut is greater than that of the second-order wire.

Preferably, an included angle A is formed between the starting point of the inner thread of the nut A and the starting point of the outer thread of the nut A and the connecting line of the axis of the nut A, an included angle B is formed between the virtual extension line of the first-order thread of the nut B and the starting point of the end face of the nut B and the starting point of the second-order thread of the nut B and the connecting line of the axis of the nut B, and the included angle A and the clamping degree B are the same.

Preferably, the thread width of the first-order thread of the B nut is smaller than the thread width of the inner thread of the A nut, and the thread width of the second-order thread of the B nut and the thread width of the outer thread of the A nut are smaller than the distance between the threads.

The utility model discloses novel structure thinks about ingeniously, and processing is convenient, and is different through first order silk and second order silk inclination between the two to make to produce bigger effort, can effectually avoid the pine to take off the emergence of phenomenon.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is a schematic diagram of the overall explosion structure of the present invention.

Fig. 3 is the structure diagram of the utility model after the nuts A and B are cut open.

Fig. 4 is a schematic view of the structure of the a nut of the present invention.

Fig. 5 is a schematic view of the structure of the nut of the present invention.

Fig. 6 is the utility model discloses from last down be a little big clearance between clearance, the B nut between B nut and the lead screw between A nut and the lead screw in proper order, the great clearance between B nut and the A nut second order silk.

Detailed Description

The following describes the present invention in further detail with reference to fig. 1-6.

As shown in figures 1-6, the utility model comprises a nut A1 and a nut B2, wherein the nut A1 is provided with an inner thread and an outer thread, the nut B2 is provided with a first-order thread and a second-order thread, the first-order thread and the second-order thread are in a ladder shape, and the second-order thread is in threaded connection with the outer thread of the nut A1.

The screw is strongly forced upon being lightly screwed because the screw has a pitch, like a screw jack, and the magnitude of the force depends on the magnitude of the pitch, the smaller the pitch, the greater the force.

The device is composed of a nut A1 and a nut B2, wherein the nut A1 is provided with a common inner wire and an outer wire, the inner wire is called a first-order wire, the outer wire is called a second-order wire, the nut B2 is provided with a ladder-shaped inner wire at two ends, the wire with a smaller inner diameter is a common wire and is called a first-order wire, the wire with a larger inner diameter is a second-order wire, and through the matching of the nut A1 and the nut B2, the nut can be well locked, and the loosening is prevented.

The first-order wire of both nuts is of a common pitch, the second-order wire is of a slightly smaller pitch than the first-order wire, here exemplified by a first-order wire pitch 1.

The starting point of the inner thread of the nut A1 and the starting point of the outer thread of the nut A1 respectively form an included angle A to the axis connecting line of the nut A1, the virtual extension line of the first-order thread of the nut B2 to the starting point of the end face of the nut B2 and the starting point of the second-order thread of the nut B2 respectively form an included angle B to the axis connecting line of the nut B2, and the included angle A and the clamping degree B are the same.

The included angle A and the included angle B are 0 included angles, namely two starting points are on the same axis connecting line, so that the nut B2 can be smoothly screwed into the nut A1 after being screwed in by the screw rod.

The thread width of the first-order thread of the B nut 2 is smaller than that of the inner thread of the A nut 1, and the thread width of the second-order thread of the B nut 2 and the thread width of the outer thread of the A nut 1 are smaller than the distance between the threads.

The assembly of A nut 1 and lead screw, the interior silk of A nut 1 and the outer silk of lead screw adopt normal clearance, and the assembly of B nut 2 and lead screw, A nut 1 adopts great clearance fit between silk and the silk, just produces the effort after 2 second order silks of B nut screw in A nut 1 second order silk more forms, and several rings of silk more can bear stronger strength like this.

Because the nut A1 and the screw rod are normally matched, the thread of the whole screw rod belongs to a conventional thread, the width of the thread tooth of the nut B2 can be only reduced to enlarge the gap, but the too narrow thread tooth can reduce the bearing capacity of the nut B, so the thread tooth is not too narrow to ensure the strength of the nut B, and the gap can be only slightly narrowed to enlarge the gap, so the performance of the nut B is realized by only enlarging the gap between the nut B2 and the second-order thread of the nut A1, but the width of the thread tooth is not reduced, but the depth of the thread tooth is increased to enlarge the gap, and the width of the second-order thread tooth of the nut B2 is equivalent to the width of the first-order thread tooth of the nut B2 so as to ensure the same strength.

The thread width of the second-order thread of the B nut 2 is the same as that of the outer thread of the A nut, the thread width is smaller than the thread pitch width, so that a larger gap is obtained, and the thread is smaller than the thread pitch than the ordinary thread in order to obtain the larger gap.

When the nut A is used, the first-order threads of the two nuts are assembled on the same screw rod, the second-order threads of the two nuts are matched, and resistance is generated between the first-order threads and the second-order threads due to the fact that the inclination of the first-order threads is different from that of the second-order threads, so that the nut B2 compresses the nut A1. The key point is that the relative inclination between the first-order wire and the second-order wire is small, which can generate large acting force, according to the inclination calculation of the example, the inclination is 1/10 of the common inclination, the generated acting force can make ten times or even more times of the common thread, so that the nut is pressed to prevent loosening, if the common thread has 10 minutes of force, the thread generates 100 minutes of force, which is not the sum of the two nut forces, but the product of the two forces. It is better than a 10-fold lever to generate 10 times of force, and a 10-fold lever with its front end prying on the end of another 10-fold lever to generate 100 times of force. If the inclination difference of the two step wires is properly reduced, the generated acting force is larger, and because each type of nut is different from the using occasion, the strength of the double-inclination product can not be accurately judged, and the nut is certainly stronger than the common nut.

Because the pitch of the screw is small, the nut can generate an unusually strong acting force, and if an overlarge torque is applied, the nut can damage the screw thread, so that the nut needs to be made of a high-strength material to play a role.

Although the structure principle of the nut is complex, the nut is different from a common nut in processing, only the consistency of two-step thread starting points of the same nut needs to be determined in the process of processing threads, other processing procedures are not needed, and the cost is not increased too much.

It is also stated that the nut is tightened with the same torque, which generates a greater force than a normal nut, and also requires the same torque for its disassembly, which is a greater force generated by the same torque, rather than a greater torque required for its disassembly, and that many people use the magnitude of the torque required for its disassembly to measure the force of the nut in error, the torque required for its disassembly not being equal to the force of the thread and the anti-vibration capability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an anti-loosening power-gathering nut, which is characterized in that, includes A nut (1) and B nut (2), and A nut (1) is equipped with internal thread and external thread, and B nut (2) is equipped with first order silk and second order silk, and first order silk and second order silk are the echelonment, and the second order silk is connected with the external thread threaded connection of A nut (1).

2. The anti-loosening and force-gathering nut as claimed in claim 1, wherein the slopes of the inner and outer threads of the nut A (1) are different.

3. The anti-loosening and force-gathering nut as claimed in claim 1, wherein the inner thread pitch of the A nut (1) is greater than the outer thread pitch of the A nut (1).

4. The anti-loosening and force-gathering nut as claimed in claim 1, wherein the first-order and second-order threads of the B nut (2) have different pitches.

5. The anti-loosening and force-gathering nut as claimed in claim 1, wherein the inclination of the first-order wire of the B nut (2) is greater than the inclination of the second-order wire.

6. The loosening-preventing force-gathering nut as claimed in claim 1, wherein the starting point of the inner thread of the nut A (1) and the starting point of the outer thread of the nut A (1) form an included angle A respectively to the connecting line of the axis of the nut A (1), the virtual extension line of the first-order thread of the nut B (2) forms an included angle B respectively to the connecting line of the end face of the nut B (2), and the starting point of the second-order thread of the nut B (2) forms an included angle B respectively to the connecting line of the axis of the nut B (2), and the included angle A and the clamping degree B are the same.

7. The anti-loosening and force-gathering nut as claimed in claim 1, wherein the thread width of the first-order thread of the B nut (2) is smaller than the thread width of the inner thread of the A nut (1), and the thread width of the second-order thread of the B nut (2) and the thread width of the outer thread of the A nut (1) are smaller than the distance between the threads.