CN220581474U - Lock nut - Google Patents
Lock nut Download PDFInfo
- Publication number
- CN220581474U CN220581474U CN202321815557.1U CN202321815557U CN220581474U CN 220581474 U CN220581474 U CN 220581474U CN 202321815557 U CN202321815557 U CN 202321815557U CN 220581474 U CN220581474 U CN 220581474U
- Authority
- CN
- China
- Prior art keywords
- locking groove
- nut body
- nut
- lock nut
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses a lock nut, which comprises a nut body, wherein a plurality of bolt counter bores are formed in one end face of the nut body, and are symmetrically arranged by taking the plane where the central axis of the nut body is positioned as a symmetrical plane; a plurality of locking grooves which are arranged at intervals are transversely formed in the outer circumferential surface of the nut body, a plurality of bolt counter bores are located in corresponding locking groove areas, and each bolt counter bore penetrates through the corresponding locking groove. The locking groove is designed, and the locking groove is deformed by tightening the bolt, so that the locking force is improved, and the locking groove is not easy to loosen; meanwhile, after the bolts are loosened, the nuts are more easily taken out through resilience force generated by deformation.
Description
Technical Field
The utility model relates to a lock nut used on engineering machinery equipment.
Background
The lock nut can be used for positioning and fixing a fixed member such as a bearing mounted on a shaft, and is provided with a locking mechanism so that even if a gap is generated between the lock nut and a fastening surface due to vibration or impact, the lock nut does not come loose.
In the prior art, the loosening of nuts is prevented by various measures. For example, two identical nuts are screwed onto the same bolt, and an additional tightening torque is applied between the two nuts, so that the bolts are reliably connected. Alternatively, a lock nut can be used in combination with a lockwasher.
A further measure is to drill through threaded holes in the outer peripheral surface to the inner peripheral threaded surface of the nut for screwing in small diameter countersunk screws in order to apply a centripetal force to the threads preventing the lock nut from loosening, which can be used for locking the shaft ends of rotating moving parts, in particular of high precision bearings, such as for anti-loose ball screw mounting end bearings. However, when the lock nut is used on an engineering machine, the spindle of the machine is in piston motion, and the lock nut often loosens after a period of operation, which can cause serious damage to the spindle system. Although this failure occurs less frequently, once it occurs, the time cost and economic cost required for maintenance are high.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a locking nut which is provided with a locking groove and is deformed by tightening a bolt, so that the locking force is improved and the locking nut is not easy to loosen; meanwhile, after the bolts are loosened, the nuts are more easily taken out through resilience force generated by deformation.
The technical aim of the utility model is realized by the following technical scheme: a lock nut comprises a nut body, wherein a plurality of bolt counter bores are formed in one end face of the nut body, and the plurality of bolt counter bores are symmetrically arranged by taking the plane where the central axis of the nut body is located as a symmetrical plane; a plurality of locking grooves which are arranged at intervals are transversely formed in the outer circumferential surface of the nut body, a plurality of bolt counter bores are located in corresponding locking groove areas, and each bolt counter bore penetrates through the corresponding locking groove.
Further provided, the bolt counter bore has six.
Further, the number of the locking grooves is two.
Further, a plurality of clamping grooves are axially formed in the outer circumferential surface of the nut body, and the clamping grooves are uniformly distributed along the outer circumferential surface.
Further, the clamping grooves are six.
Further, each locking groove is arc-shaped, and the arc angle is greater than 120 degrees and less than 180 degrees.
In summary, the utility model has the following beneficial effects: 1. the locking groove is designed, and the locking groove is deformed by tightening the bolt, so that the locking force is improved, and the locking groove is not easy to loosen; meanwhile, after the bolts are loosened, the nuts are easier to take out through resilience force generated by deformation; 2. the 6 bolts are symmetrically arranged on two sides, so that the nuts cannot deflect, and the complete and difficult deformation of the thread is better protected.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present embodiment;
FIG. 2 is a schematic side view of the present embodiment;
description of the drawings: 1. a nut body; 2. a bolt countersink; 3. a locking groove; 4. a clamping groove.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a lock nut comprises a nut body 1, wherein 6 bolt counter bores 2 are formed in one end face of the nut body 1, and the 6 bolt counter bores 2 are symmetrically arranged by taking a plane where a central axis of the nut body 1 is located as a symmetrical plane. Each bolt counter bore 2 is provided with a bolt in a matching way. The two sides of the 6 bolts are symmetrically arranged, the nuts cannot deflect, and the complete and difficult deformation of the thread line is better protected.
The outer circumferential surface of the nut body 1 is transversely provided with 2 locking grooves 3 which are arranged at intervals, and the locking grooves 3 are symmetrically arranged on the surface where the central axis of the nut body 1 is located. In the region of each locking groove 3, 3 bolt countersinks 2 are arranged, and each bolt countersink 2 extends through a respective corresponding locking groove 3. Each locking groove 3 is arc-shaped, and the arc angle is more than 120 degrees and less than 180 degrees.
6 clamping grooves 4 are axially formed in the outer circumferential surface of the nut body 1, and the 6 clamping grooves 4 are uniformly distributed along the outer circumferential surface.
The locking nut is arranged on a shaft of the mechanical equipment which moves in a piston manner, and the six bolts are screwed down to deform the locking nut, so that the locking force is improved, and the locking nut is not easy to loosen; meanwhile, after the bolts are loosened, the locking nuts are more easily taken out through resilience force generated by deformation.
The present utility model is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present utility model.
Claims (6)
1. A lock nut comprises a nut body, wherein a plurality of bolt counter bores are formed in one end face of the nut body, and the plurality of bolt counter bores are symmetrically arranged by taking the plane where the central axis of the nut body is located as a symmetrical plane; the method is characterized in that: a plurality of locking grooves which are arranged at intervals are transversely formed in the outer circumferential surface of the nut body, a plurality of bolt counter bores are located in corresponding locking groove areas, and each bolt counter bore penetrates through the corresponding locking groove.
2. A lock nut as defined in claim 1, wherein: the bolt counter bore has six.
3. A lock nut as defined in claim 1, wherein: the locking grooves are two.
4. A lock nut as defined in claim 1, wherein: a plurality of clamping grooves are axially formed in the outer circumferential surface of the nut body, and the clamping grooves are uniformly distributed along the outer circumferential surface.
5. A lock nut as defined in claim 4, wherein: the clamping grooves are six.
6. A lock nut as claimed in claim 3, wherein: each locking groove is arc-shaped, and the arc angle is more than 120 degrees and less than 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321815557.1U CN220581474U (en) | 2023-07-11 | 2023-07-11 | Lock nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321815557.1U CN220581474U (en) | 2023-07-11 | 2023-07-11 | Lock nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581474U true CN220581474U (en) | 2024-03-12 |
Family
ID=90117069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321815557.1U Active CN220581474U (en) | 2023-07-11 | 2023-07-11 | Lock nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581474U (en) |
-
2023
- 2023-07-11 CN CN202321815557.1U patent/CN220581474U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202118079U (en) | Anti-loosening structure for thread connection | |
| CN108425928A (en) | A kind of reusable fastener | |
| JP2009275727A (en) | Looseness preventing locking device | |
| CN220581474U (en) | Lock nut | |
| CN113606238A (en) | Symmetrical slotting locknut structure and locknut locking method | |
| US7600958B2 (en) | Threaded ring | |
| JP3210608U (en) | Locking nut | |
| CN210830103U (en) | Locking structure | |
| CN106828950B (en) | Mounting structure of control panel bracket | |
| GB2041139A (en) | Locking of nuts | |
| US5724861A (en) | Cam follower mounting assembly and method | |
| CN111306174A (en) | Anti-loose double nut with threads | |
| CN216407395U (en) | Novel large gear ring butt-joint locking device | |
| CN111473035A (en) | Locking device for stop groove nut | |
| CN216143086U (en) | A locknut structure for bearing transfer crack | |
| CN110821938A (en) | Anti-loosening fastening bolt | |
| CN207333427U (en) | A kind of screw locking structure | |
| CN114110000B (en) | Anti-loosening device for back-threaded nut | |
| CN220927322U (en) | Locking device for flywheel main shaft of steel cord stranding machine | |
| CN218625003U (en) | Boss self-locking fastener | |
| CN217355175U (en) | Round nut, main shaft locking structure and roller cage shoe | |
| CN114278659A (en) | Screw thread locking structure | |
| CN221144987U (en) | Dual anti-loosening lock shaft structure | |
| CN214888280U (en) | Locking nut | |
| CN220769906U (en) | Shaft head single nut locking mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |