CN216077925U - Nut fastening device capable of overcoming rotation and vibration of bolt - Google Patents
Nut fastening device capable of overcoming rotation and vibration of bolt Download PDFInfo
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- CN216077925U CN216077925U CN202122857246.9U CN202122857246U CN216077925U CN 216077925 U CN216077925 U CN 216077925U CN 202122857246 U CN202122857246 U CN 202122857246U CN 216077925 U CN216077925 U CN 216077925U
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Abstract
The utility model discloses a nut fastening device for overcoming bolt rotation and vibration, which comprises a connecting component for connecting a connected piece and a fastening component arranged on the connecting component; the coupling assembling include with by connecting piece fixed connection's coupling nut and connecting bolt, fastening assembly is including dismantling the big nut of fastening of connecting in connecting bolt, can dismantle on the big nut of fastening and be connected with a plurality of fastening little bolts and fastening little nut, the fastening little bolt passes fastening big nut and fastening little nut, butt in coupling nut. The connecting assembly is effectively fastened through the small fastening bolts, the rotation and vibration of the bolts are overcome, the nuts are prevented from falling off, and the device is simple in structure, high in universality and easy to popularize.
Description
Technical Field
The utility model belongs to the field of nut fastening, and particularly relates to a nut fastening device capable of overcoming rotation and vibration of a bolt.
Background
The nut is the most commonly used connecting piece in the fastening connection, and the nut is usually separated due to the vibration of equipment in the working process and the like. The nut drops in the equipment operation process, has huge potential safety hazard, probably leads to the part of operation to drop in the twinkling of an eye and the quality accident of product.
There are many methods of nut loosening prevention used on production field devices, such as: the nut is additionally provided with a jackscrew for preventing looseness, a double nut for preventing looseness, a spring gasket for preventing looseness and the like. However, in practical production, the methods are not ideal for the rotating part of high-bearing equipment and the anti-loosening effect of a larger nut, the cost is higher, and the nut is usually separated after the equipment runs for a period of time.
The utility model is provided to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, a nut fastening device that overcomes the rotation and vibration of a bolt has been proposed. In order to achieve the purpose, the utility model provides the following technical scheme:
a nut fastening device for overcoming the rotation and vibration of a bolt comprises a connecting component for connecting a connected piece and a fastening component arranged on the connecting component; the coupling assembling include with by connecting piece fixed connection's coupling nut and connecting bolt, fastening assembly is including dismantling the big nut of fastening of connecting in connecting bolt, can dismantle on the big nut of fastening and be connected with a plurality of fastening little bolts and fastening little nut, the fastening little bolt passes fastening big nut and fastening little nut, butt in coupling nut.
Preferably, a plurality of small fastening bolts are circumferentially arranged on the large fastening nut, and the corresponding large fastening nut is provided with a threaded through hole which is matched with the small fastening bolts in size and corresponds to the small fastening bolts in position.
Preferably, the farthest distance between the side surface of the fastening small bolt and the connecting bolt is smaller than the radius of the connecting nut and the fastening large nut.
Preferably, the connecting nuts are arranged in a plurality and are sequentially sleeved on the connecting bolts.
Preferably, the number of the small fastening bolts is three, and the circumferentially arranged interval angles of the three small fastening bolts are equal.
Preferably, the axes of the fastening small bolt and the connecting bolt are parallel to each other.
Preferably, an elastic washer is arranged between the small fastening bolt and the connecting nut.
Preferably, an elastic washer is arranged between the small fastening nut and the large fastening nut.
Preferably, the material of the fastening assembly is 45 steel.
Preferably, the large fastening nut and the small fastening nut are hexagon nuts, and the small fastening bolt is a hexagon bolt.
Has the advantages that:
1. the connecting nuts are fastened by arranging a plurality of small fastening nuts, so that the influence of vibration is small;
2. the small fastening bolt is arranged on the large fastening nut, so that multiple tightening and fixing can be realized;
3. the device has the advantages of simple structure, convenient production, easy installation and low production cost.
Drawings
FIG. 1 is a schematic view of a nut tightening device for overcoming bolt rotation and vibration in an embodiment of the present invention;
in the drawings: 110. a connected member 1; 120. a connected member 2; 210. a connecting bolt; 220. a connecting nut; 310. fastening a large nut; 320. fastening a small bolt; 330. and fastening the small nut.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.
As shown in fig. 1, the nut fastening device for resisting rotation and vibration of a bolt provided in the present embodiment includes a connecting assembly for connecting a connected member and a fastening assembly disposed on the connecting assembly; the connecting assembly comprises a connecting nut 220 fixedly connected with a connected piece and a connecting bolt 210, the fastening assembly comprises a fastening large nut 310 detachably connected with the connecting bolt 210, a plurality of fastening small bolts 320 and fastening small nuts 330 are detachably connected on the fastening large nut 310, and the fastening small bolts 320 penetrate through the fastening large nut 310 and the fastening small nuts 330 and abut against the connecting nut 220.
Preferably, a plurality of small fastening bolts 320 are circumferentially arranged on the large fastening nuts 310, and the corresponding large fastening nuts 310 are provided with threaded through holes corresponding to the small fastening bolts 320 in size and position.
Preferably, the farthest distance from the side of the small fastening bolt 320 to the connecting bolt 210 is smaller than the radius of the connecting nut 220 and the large fastening nut 310. The contact surface between the head of the small fastening bolt 320 and the large fastening nut 310 is ensured to be complete, so that the effective contact area is maximized, and the friction force between the small fastening bolt 320 and the large fastening nut 310 is increased.
Preferably, the number of the connection nuts 220 is several, and the connection nuts are sequentially sleeved on the connection bolt 210.
Preferably, there are three small fastening bolts 320, and the three small fastening bolts 320 are circumferentially arranged at equal intervals.
Preferably, the axes of the fastening small bolt 320 and the connecting bolt 210 are parallel to each other.
Preferably, an elastic washer is provided between the fastening small bolt 320 and the coupling nut 220.
Preferably, an elastic washer is disposed between the fastening small nut 330 and the fastening large nut 310.
The elastic washer helps to increase the frictional force between the end of the screw fastening the small screw 320 and the coupling nut 220, and also helps to increase the frictional force between the head of the fastening small screw and the fastening large nut 310.
Preferably, the material of the fastening component is 45 steel, so that the production cost is reduced.
Preferably, the large fastening nut 310 and the small fastening nut 330 are hexagon nuts, and the small fastening bolt 320 is a hexagon bolt.
The device overcomes the rotation and vibration of the bolt mainly through the fastening assembly, the fastening large nut 310 fastens the connecting assembly by utilizing the pretightening force of the threads, and the small fastening nut 330 arranged on the fastening large nut 310 can increase the pretightening force again. When the nut is added to the connection nut 220 to fasten the double nuts, the contact surfaces of the nuts have certain roughness and are not absolutely overlapped, and when vibration occurs, the double nuts are unstable at one place, so that the whole double nuts are easy to be unstable, and looseness occurs. Compared with the double nut fastening, the fastening by the plurality of small fastening nuts 330 can disperse the influence, and the loosening at one position can not easily cause the loosening of the large fastening nut 310.
When the fastening bolt 320 and the fastening small nut 330 are firstly connected to the fastening large nut 310 in use, the fastening small bolt 320 is firstly not screwed, the fastening large nut 310 is screwed on the connecting bolt 210 after the connecting bolt 210 and the connecting nut 220 are fixed by the connecting piece, the fastening small bolt 320 is abutted against the connecting large nut, and then the fastening small bolt 320 is screwed to realize the secondary fastening.
In another embodiment, a screw hole through hole on the large fastening nut 310 is eliminated, and an annular through hole is arranged on the large fastening nut 310, the annular through hole is coaxial with a screw rod of the large fastening nut 310, a screw hole corresponding to the small fastening bolt 320 is arranged on the connecting nut 220, the small fastening bolt 320 passes through the annular through hole and is fixed in the screw hole of the connecting nut 220, an annular positioning groove is arranged on the screw rod of the small fastening bolt 320, a pin hole communicated with the screw hole is arranged on the side surface of the connecting nut 220, and a positioning pin is arranged, and passes through the screw hole and is fixedly connected with the annular positioning groove, so that the small fastening bolt 320 and the connecting nut 220 are mutually limited, and the small fastening bolt 320 cannot fall off.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A nut fastening device for overcoming the rotation and vibration of a bolt is characterized by comprising a connecting component for connecting a connected piece and a fastening component arranged on the connecting component; the coupling assembling include with by connecting piece fixed connection's coupling nut and connecting bolt, fastening assembly is including dismantling the big nut of fastening of connecting in connecting bolt, can dismantle on the big nut of fastening and be connected with a plurality of fastening little bolts and fastening little nut, the fastening little bolt passes fastening big nut and fastening little nut, butt in coupling nut.
2. The nut tightening device against the rotation and vibration of the bolt as claimed in claim 1, wherein a plurality of small tightening bolts are circumferentially provided on the large tightening nut, and the corresponding large tightening nut is provided with a threaded through hole corresponding to the small tightening bolts in size and position.
3. A nut tightening device against rotation and vibration of a bolt according to claim 1, wherein the farthest distance from the side of the small tightening bolt to the coupling bolt is smaller than the radius of the coupling nut and the large tightening nut.
4. The nut tightening device against the rotation and vibration of the bolt according to claim 1, wherein the plurality of connection nuts are sequentially fitted over the connection bolt.
5. The nut tightening device against the rotation and vibration of the bolt according to claim 1, wherein there are three small tightening bolts, and the three small tightening bolts are circumferentially arranged at equal intervals.
6. A nut tightening device against rotation and vibration of a bolt according to claim 1, wherein the axes of the small tightening bolt and the connecting bolt are parallel to each other.
7. A nut tightening device against rotation and vibration of a bolt according to claim 1, wherein an elastic washer is provided between the small tightening bolt and the coupling nut.
8. A nut tightening device against rotation and vibration of a bolt according to claim 1, wherein an elastic washer is provided between the small tightening nut and the large tightening nut.
9. A nut tightening device against bolt rotation and vibration according to claim 1, wherein the material of the tightening unit is 45 steel.
10. The nut tightening device against rotation and vibration of a bolt according to claim 1, wherein the large tightening nut and the small tightening nut are hexagonal nuts, and the small tightening bolt is a hexagonal bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122857246.9U CN216077925U (en) | 2021-11-19 | 2021-11-19 | Nut fastening device capable of overcoming rotation and vibration of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122857246.9U CN216077925U (en) | 2021-11-19 | 2021-11-19 | Nut fastening device capable of overcoming rotation and vibration of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077925U true CN216077925U (en) | 2022-03-18 |
Family
ID=80662038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122857246.9U Active CN216077925U (en) | 2021-11-19 | 2021-11-19 | Nut fastening device capable of overcoming rotation and vibration of bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216077925U (en) |
-
2021
- 2021-11-19 CN CN202122857246.9U patent/CN216077925U/en active Active
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