CN216005046U - Anti-loosening device - Google Patents
Anti-loosening device Download PDFInfo
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- CN216005046U CN216005046U CN202121863570.5U CN202121863570U CN216005046U CN 216005046 U CN216005046 U CN 216005046U CN 202121863570 U CN202121863570 U CN 202121863570U CN 216005046 U CN216005046 U CN 216005046U
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- nut
- stop washer
- loosening
- effect
- washer
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Abstract
The utility model discloses a locking device which comprises a screw, a first nut, a stop washer and a second nut, wherein the first nut and the second nut are respectively in threaded connection with the screw, the stop washer is arranged between the first nut and the second nut, one end of the stop washer is abutted against the periphery of the first nut, and the other end of the stop washer is abutted against the periphery of the second nut. The stop washer enables the second nut and the first nut to form a mutual self-locking anti-loose whole, when the second nut is loosened, the second nut needs to rotate anticlockwise, at the moment, the second nut exerts a force effect on the stop washer, the first nut rotates anticlockwise due to the connection limiting effect of the stop washer, the first nut rotates anticlockwise for fastening, and therefore the first nut is fastened due to the loosening of the second nut under the effect of the stop washer, and the trend of loosening of the second nut is offset; the anti-loosening effect of the nut is improved, the performance of the equipment is improved, the daily maintenance cost of the equipment is reduced, and the labor intensity is reduced.
Description
Technical Field
The utility model relates to the technical field of travelling equipment, in particular to a locking device.
Background
The existing pressing plate device for the steel wire rope of the travelling crane winding drum mainly comprises a winding drum, the steel wire rope, a pressing plate, a gasket, a positive screw nut and a screw, wherein two ends of the steel wire rope of the travelling crane winding drum are mainly fixed by the pressing plate, and in the long-time running process of the travelling crane, the positive screw nut is easy to loosen under the action of impact, vibration or variable load, so that the pressing plate is finally loosened, two ends of the steel wire rope cannot be pressed, potential safety hazards exist, the steel wire rope cannot normally work, and further production is influenced.
Therefore, how to solve the problem that the existing travelling crane reel steel wire rope pressing plate device is easy to loosen is a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a locking device, which is characterized in that a self-locking limiting structure is added on the original pressing plate device, so that the locking effect of a nut is greatly improved, the rolling pressing plate is not easy to loosen in the normal operation process of a travelling crane, the performance of the whole equipment is greatly improved, the daily maintenance cost of the equipment is reduced, and the labor intensity is reduced.
In order to solve the technical problem, the utility model provides a locking device which comprises a screw, a first nut, a stop washer and a second nut, wherein the first nut and the second nut are respectively in threaded connection with the screw, the stop washer is arranged between the first nut and the second nut, one end of the stop washer is abutted against the periphery of the first nut, and the other end of the stop washer is abutted against the periphery of the second nut.
Preferably, the stop washer is provided with an upper tongue piece and a lower tongue piece, and the upper tongue piece and the lower tongue piece are distributed on two sides of the central hole.
Preferably, the height of the upper tongue is not less than half of the height of the first nut, and the height of the lower tongue is not less than half of the height of the second nut.
Preferably, the nut further comprises a washer disposed below the second nut.
Preferably, the first nut is a reverse-threaded nut.
Preferably, the second nut is a positive screw nut.
The utility model provides a locking device which comprises a screw, a first nut, a stop washer and a second nut, wherein the first nut and the second nut are respectively in threaded connection with the screw, the stop washer is arranged between the first nut and the second nut, one end of the stop washer is abutted against the periphery of the first nut, and the other end of the stop washer is abutted against the periphery of the second nut. The stop washer enables the second nut and the first nut to form a mutual self-locking anti-loose whole, when the second nut is loosened, the second nut needs to rotate anticlockwise, at the moment, the second nut exerts a force effect on the stop washer, the first nut rotates anticlockwise due to the connection limiting effect of the stop washer, the first nut rotates anticlockwise for fastening, and therefore the first nut is fastened due to the loosening of the second nut under the effect of the stop washer, and the trend of loosening of the second nut is offset; the self-locking limiting structure of the stop washer is added on the original pressing plate device, so that the anti-loosening effect of the nut is greatly improved, the rolling barrel pressing plate is not easy to loosen in the normal operation process of a travelling crane, the performance of the whole device is greatly improved, the daily maintenance cost of the device is reduced, and the labor intensity is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the stop washer shown in FIG. 1;
fig. 3 is a cross-sectional view of the structure shown in fig. 2.
Wherein, in fig. 1-3:
the bolt comprises a screw rod-1, a first nut-2, a stop gasket-3, an upper tongue-301, a lower tongue-302, a second nut-4, a gasket-5, a pressure plate-6, a steel wire rope-7 and a winding drum-8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention; FIG. 2 is a schematic view of the stop washer shown in FIG. 1; fig. 3 is a cross-sectional view of the structure shown in fig. 2.
In a specific embodiment provided by the utility model, the screw rod 1, the first nut 2, the stop washer 3 and the second nut 4 are mainly included, the first nut 2 and the second nut 4 are respectively in threaded connection with the screw rod 1, the stop washer 3 is arranged between the first nut 2 and the second nut 4, one end of the stop washer 3 is abutted against the periphery of the first nut 2, and the other end of the stop washer 3 is abutted against the periphery of the second nut 4.
The second nut 4 is used for pre-tightening the pressing plate 6 through clockwise screwing, two ends of the stop washer 3 are respectively abutted to the first nut 2 and the second nut 4, one end of the stop washer 3 is used for applying a reaction force to the first nut 2 when the second nut 4 is loosened, and the other end of the stop washer 3 is used for pre-tightening and fixing the second nut 4.
Specifically, in the middle of the practical application process, the locking gasket 3 makes second nut 4 and first nut 2 form a locking whole of interlocking, when the not hard up condition appears in second nut 4, will anticlockwise rotate, at this moment, second nut 4 exerts an effect to locking gasket 3, because the connection limiting action of locking gasket 3, make 2 anticlockwise rotations of first nut, and 2 anticlockwise rotations of first nut are the fastening, so because locking gasket 3 acts on, 4 not hard up of second nut can make 2 fastenings of first nut, thereby offset 4 not hard up trends of second nut, make clamp plate 6 exert a continuous pretightning force to wire rope 7, guarantee 8 normal operating of reel.
On the basis of the above-mentioned embodiments, it is preferable that the stopper washer 3 is provided with an upper tongue piece 301 and a lower tongue piece 302, and the upper tongue piece 301 and the lower tongue piece 302 are distributed on both sides of the central hole. The two symmetrical ends of the stop washer 3 are arranged to be of a bendable structure, the pressing plate 6 is pressed by the second nut 4 firstly, the stop washer 3 is placed, the first nut 2 is pressed against the stop washer 3, the upper tongue piece 301 is bent upwards to be abutted against the first nut 2, the lower tongue piece 302 is bent downwards to be abutted against the second nut 4, and therefore the effect of mutually limiting the first nut 2 and the second nut 4 is achieved.
In addition to the above-described embodiments, it is preferable that the height of the upper tongue piece 301 is not less than half of the height of the first nut 2, and the height of the lower tongue piece 302 is not less than half of the height of the second nut 4. The design can lead the contact surface of the upper tongue piece 301 and the first nut 2 to be larger, and lead the interaction force between the stop washer 3 and the first nut 2 to be more stable; likewise, the contact surface between the lower tongue piece 302 and the second nut 4 is larger, so that the interaction force between the stop washer 3 and the second nut 4 is more stable.
On the basis of the above-mentioned embodiment, the anti-loose device preferably further includes a washer 5 disposed below the second nut 4. The washer 5 is used for being placed between the second nut 4 and the pressure plate 6 and used for strengthening the connection effect between the second nut 4 and the pressure plate 6.
Further, the first nut 2 is a reverse-thread nut; the second nut 4 is a positive screw nut. Through the interaction force among the first nut 2, the second nut 4 and the stop washer 3, when the positive screw nut is not hard up, the action of force is transmitted to the reverse screw nut through the stop washer 3, a self-locking anti-loose structure is formed, the anti-loose effect of the nut is greatly improved, the reel pressing plate is not easy to loose in the normal operation process of a travelling crane, the performance of the whole equipment is greatly improved, the daily maintenance cost of the equipment is reduced, and the labor intensity is reduced.
In summary, the anti-loosening device provided by this embodiment mainly includes a screw, a first nut, a stop washer and a second nut, the first nut and the second nut are respectively in threaded connection with the screw, the stop washer is disposed between the first nut and the second nut, one end of the stop washer abuts against the periphery of the first nut, and the other end of the stop washer abuts against the periphery of the second nut. The stop washer enables the second nut and the first nut to form a mutual self-locking anti-loose whole, when the second nut is loosened, the second nut needs to rotate anticlockwise, at the moment, the second nut exerts a force effect on the stop washer, the first nut rotates anticlockwise due to the connection limiting effect of the stop washer, the first nut rotates anticlockwise for fastening, and therefore the first nut is fastened due to the loosening of the second nut under the effect of the stop washer, and the trend of loosening of the second nut is offset; the self-locking limiting structure of the stop washer is added on the original pressing plate device, so that the anti-loosening effect of the nut is greatly improved, the rolling barrel pressing plate is not easy to loosen in the normal operation process of a travelling crane, the performance of the whole device is greatly improved, the daily maintenance cost of the device is reduced, and the labor intensity is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The anti-loosening device is characterized by comprising a screw, a first nut, a stop washer and a second nut, wherein the first nut and the second nut are respectively in threaded connection with the screw, the stop washer is arranged between the first nut and the second nut, one end of the stop washer is abutted against the periphery of the first nut, the other end of the stop washer is abutted against the periphery of the second nut, the first nut is a reverse-thread nut, and the second nut is a positive-thread nut.
2. The anti-loosening device according to claim 1, wherein the stop washer is provided with an upper tongue piece and a lower tongue piece, and the upper tongue piece and the lower tongue piece are distributed on two sides of the central hole.
3. The anti-loosening device of claim 2, wherein the upper tongue has a height that is no less than half of the height of the first nut, and the lower tongue has a height that is no less than half of the height of the second nut.
4. The anti-loosening device of claim 3, further comprising a washer disposed below the second nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863570.5U CN216005046U (en) | 2021-08-10 | 2021-08-10 | Anti-loosening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863570.5U CN216005046U (en) | 2021-08-10 | 2021-08-10 | Anti-loosening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216005046U true CN216005046U (en) | 2022-03-11 |
Family
ID=80527331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121863570.5U Active CN216005046U (en) | 2021-08-10 | 2021-08-10 | Anti-loosening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216005046U (en) |
-
2021
- 2021-08-10 CN CN202121863570.5U patent/CN216005046U/en active Active
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