CN213017224U - Locking nut assembly - Google Patents
Locking nut assembly Download PDFInfo
- Publication number
- CN213017224U CN213017224U CN202021727220.1U CN202021727220U CN213017224U CN 213017224 U CN213017224 U CN 213017224U CN 202021727220 U CN202021727220 U CN 202021727220U CN 213017224 U CN213017224 U CN 213017224U
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- nut
- fastening plug
- hole
- wall
- gasket
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Abstract
The utility model discloses a locking nut component, including nut and gasket, the one end of nut is the nut body, the other end of nut is conical fastening plug, the one end that fastening plug diameter is great is close to the nut body, the center of nut body and fastening plug all is provided with the through-hole, be provided with the internal thread that cooperatees with the bolt external screw thread on the inner wall of through-hole, evenly be provided with a plurality of dashpots on the lateral wall of fastening plug, the center of gasket is provided with the toper through-hole with fastening plug assorted, the minimum diameter of toper through-hole is greater than the external diameter of bolt, the gradient of toper through-hole inner wall slightly is lighter than the gradient of fastening plug; the utility model is used for solve among the prior art that lock nut takes place easily not hard up, and lead to the equipment operation to receive the influence, take place the problem that equipment damaged, disintegrated even.
Description
Technical Field
The utility model relates to a fastener technical field, especially a lock nut component.
Background
The nut is the mechanical parts who uses commonly, mainly used fastening work piece, nevertheless when external load changes, operational environment has vibration, material high temperature creep, can cause the frictional force between the threaded connection to reduce gradually, when frictional force reduces to a certain extent, threaded connection will become flexible, leads to threaded connection to lose the effect of fastening to lead to equipment operation to receive the influence, still can make equipment damage, disintegrate, even cause the accident.
Therefore, how to prevent the nut from loosening is a very important problem, and the existing methods for preventing the nut from loosening have two types: firstly, the relative motion between the nut and the bolt is limited, and secondly, the difficulty of the relative motion between the nut and the bolt is increased, namely, the friction force is increased. The relative movement between the nut and the bolt can be limited by adopting a method of bonding and anti-loosening by using an adhesive, but the disassembly and the assembly of the guide bolt and the nut are very inconvenient; the friction force can be increased by adopting structures such as a spring gasket, a butt nut and the like, the structures really relieve the problem of loosening of the nut to a certain extent, but the nut can still be loosened after long-time use.
Disclosure of Invention
The utility model aims at providing a lock nut component for lock nut takes place easily not hard up among the solution prior art, and leads to the equipment operation to receive the influence, takes place the problem that equipment damaged, disintegrated even.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a lock nut assembly, including nut and gasket, the one end of nut is the nut body, the other end of nut is conical fastening plug, the great one end of fastening plug diameter is close to the nut body, the center of nut body and fastening plug all is provided with the through-hole, be provided with on the inner wall of through-hole with bolt external thread matched with internal thread, evenly be provided with a plurality of dashpots on fastening plug's the lateral wall, the center of gasket be provided with fastening plug assorted taper through-hole, the minimum diameter of taper through-hole is greater than the external diameter of bolt, the gradient of taper through-hole inner wall slightly is less than the gradient of fastening plug outer.
Optionally, an annular variable groove is provided between the nut body and the fastening plug.
Optionally, the outer wall of the fastening plug is provided with anti-slip lines, and the inner wall of the tapered through hole of the gasket is provided with anti-slip lines.
Optionally, the thickness of the spacer is slightly greater than the sum of the thicknesses of the fastening plug and the variable slot.
Optionally, the gasket is made of high-elasticity steel.
The utility model discloses a lock nut component has following advantage:
(1) when the fastening plug is inserted into the conical through hole, the fastening plug is extruded by the inner wall of the conical through hole and can contract towards the middle, so that the friction force between the internal thread of the fastening plug and the external thread of the bolt is increased, and the locking effect is achieved.
(2) When the fastening plug receives the extrusion of toper through-hole inner wall, can produce radial pressure, the frictional force between fastening plug outer wall and the toper through-hole inner wall increases, and anti-skidding line also can play the effect of increase coefficient of friction, and both combine together to make and more difficult take place relative motion between fastening plug and the gasket to play the effect of locking.
(3) The buffer slot can leave the space for fastening plug's shrink, and the variable groove can avoid fastening plug to produce concentrated stress when the shrink, prevents that fastening plug and nut body's junction from breaking.
Drawings
Fig. 1 is a schematic sectional structure of the present invention.
Fig. 2 is a sectional structure diagram of the nut in a normal state.
Fig. 3 is a sectional structure diagram of the nut in a locked state.
Fig. 4 is a bottom view of the nut.
Fig. 5 is a schematic sectional view of the gasket.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 5, a lock nut assembly includes a nut 1 and a washer 2, one end of the nut 1 is a nut body 101, the nut body 101 is a hexagon nut, the other end of the nut 1 is a tapered fastening plug 102, an annular variable groove 103 is provided between the nut body 101 and the fastening plug 102, the variable groove 103 can prevent the fastening plug 102 from generating concentrated stress when contracting, and prevent the joint of the fastening plug 102 and the nut body 101 from breaking, the end of the fastening plug 102 with a larger diameter is close to the nut body 101, the centers of the nut body 101 and the fastening plug 102 are both provided with a through hole 104, the inner wall of the through hole 104 is provided with an internal thread 105 matching with the external thread of the bolt 3, the side wall of the fastening plug 102 is uniformly provided with two buffer grooves 106, the buffer grooves 106 can leave a space for the contraction of the fastening plug 102, and the outer wall of the fastening plug 102 is provided with an anti-.
The gasket 2 is made of high-elasticity steel, the high-elasticity steel can be No. 45 manganese steel, the No. 45 manganese steel has certain elasticity, when the nut 1 is locked, the top of the gasket 2 is attached to the bottom of the nut body 101, the bottom of the gasket 2 is attached to the top of the to-be-fastened piece 4, both attaching parts have certain friction force and can prevent the nut 1 from loosening, a tapered through hole 201 matched with the fastening plug 102 is arranged in the center of the gasket 2, anti-skid grains are arranged on the inner wall of the tapered through hole 201, the minimum diameter of the tapered through hole 201 is larger than the outer diameter of the bolt 3 and can enable the bolt 3 to penetrate through the gasket 2, the inclination of the inner wall of the tapered through hole 201 is slightly smaller than that of the outer wall of the fastening plug 102, the fastening plug 102 can conveniently enter the tapered through hole 201, the thickness of the gasket 2 is slightly larger than the sum, the fastening pin 102 and the variable recesses 103 can be completely inserted into the tapered through-hole 201.
The utility model discloses when using, pass bolt 3 earlier and treat fastener 4, then gasket 2 is installed to the repacking, then operate according to conventional fastening bolt 3's gimmick, twist and move nut 1, until nut 1 goes up in variable groove 103 sinks into toper through-hole 201 completely, the top at gasket 2 is hugged closely to the bottom of nut body 101, and the installation is accomplished so far. When the variable groove 103 starts to enter the tapered through hole 201, the fastening plug 102 is pressed by the inner wall of the tapered through hole 201 to be contracted toward the middle, so that the friction force between the internal thread 105 of the fastening plug 102 and the external thread of the bolt 3 is increased; the outer wall of the fastening plug 102 is extruded by the inner wall of the conical through hole 201 to generate radial pressure, and the outer wall of the fastening plug 102 and the inner wall of the conical through hole 201 are both provided with anti-skid grains, so that the friction coefficient can be increased, and the friction force is increased by combining the outer wall of the fastening plug 102 and the inner wall of the conical through hole 201; as the nut 1 is slowly locked, the top of the gasket 2 is gradually attached to the bottom of the nut body 101, so that the friction force is increased; the bottom of the gasket 2 is gradually jointed with the top of the fastener 4 to be fastened, so that the friction force is increased; the friction force is increased at all the four positions, and the relative movement between the nut 1 and the bolt 3 can be effectively prevented, so that the locking effect is achieved. The variable groove 103 can be designed into different sizes according to different nuts 1, when the nuts 1 are in a locking state, the variable groove 103 just completely enters the tapered through holes 201, and the variable groove 103 can play a role in indicating locking in place.
The embodiments described above are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Claims (5)
1. A lock nut assembly characterized by: including nut and gasket, the one end of nut is the nut body, the other end of nut is conical fastening plug, the great one end of fastening plug diameter is close to the nut body, the center of nut body and fastening plug all is provided with the through-hole, be provided with on the inner wall of through-hole with bolt external screw thread matched with internal thread, evenly be provided with a plurality of dashpots on fastening plug's the lateral wall, the center of gasket be provided with fastening plug assorted taper through-hole, taper through-hole's minimum diameter is greater than the external diameter of bolt, the gradient of taper through-hole inner wall slightly is less than the gradient of fastening plug outer wall.
2. The cage nut assembly of claim 1 wherein: an annular variable groove is arranged between the nut body and the fastening plug.
3. The cage nut assembly of claim 1 wherein: the outer wall of the fastening plug is provided with anti-slip lines, and the inner wall of the conical through hole of the gasket is provided with the anti-slip lines.
4. The cage nut assembly of claim 1 wherein: the thickness of the gasket is slightly larger than the sum of the thicknesses of the fastening plug and the variable groove.
5. The cage nut assembly of claim 1 wherein: the gasket is made of high-elasticity steel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021727220.1U CN213017224U (en) | 2020-08-18 | 2020-08-18 | Locking nut assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021727220.1U CN213017224U (en) | 2020-08-18 | 2020-08-18 | Locking nut assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
CN213017224U true CN213017224U (en) | 2021-04-20 |
Family
ID=75468502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202021727220.1U Active CN213017224U (en) | 2020-08-18 | 2020-08-18 | Locking nut assembly |
Country Status (1)
Country | Link |
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CN (1) | CN213017224U (en) |
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2020
- 2020-08-18 CN CN202021727220.1U patent/CN213017224U/en active Active
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