CN220791732U - Lock nut with ball positioning wedging function - Google Patents
Lock nut with ball positioning wedging function Download PDFInfo
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- CN220791732U CN220791732U CN202322703379.XU CN202322703379U CN220791732U CN 220791732 U CN220791732 U CN 220791732U CN 202322703379 U CN202322703379 U CN 202322703379U CN 220791732 U CN220791732 U CN 220791732U
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- locked bolt
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- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011089 mechanical engineering Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model discloses a lock nut with a ball positioning wedge-tightened function, which comprises a nut main body, an outer sleeve accessory and balls, wherein an outer circle of the upper part of the nut main body is provided with a right cylinder, the root of the right cylinder is provided with an annular groove, the root of an inner ring of the outer sleeve accessory is provided with an annular table, three through holes with the same diameter as the balls are arranged at three parts in the circumferential direction of the right cylinder from outside to inside, the depth dimension of each through hole is equal to the diameter dimension of each ball, the bottom hole of each through hole is provided with a cone-shaped bottom edge, and three fan-shaped circular grooves are arranged at three parts of the inner ring of the outer sleeve accessory; during installation, the locking nut is screwed into the locked bolt, after the locked bolt reaches the position to be locked, the outer sleeve accessory is rotated relative to the nut main body, the balls leave the fan-shaped circular groove, the balls are gradually wedged into the threads of the locked bolt by force, and the threads of the locked bolt are plastically deformed, so that the locked bolt is locked, and reliable locking of the bolt is realized. The lock nut is suitable for various specifications of M12-M64 and different occasions of load, vibration and high and low temperature.
Description
Technical Field
The utility model belongs to the technical field of fastening parts in mechanical engineering, and particularly relates to a lock nut with ball positioning wedging function.
Background
The types of lock nuts practically applied in the technical field of various connecting and fastening parts of mechanical engineering are quite various at present, and besides the conventional oldest spring washer matched nut and auxiliary reinforcing back nut, slotted bolt nuts, elastic fastening nuts and nonmetallic insert lock nuts are widely applied, but the former are generally suitable for more stable occasions, the latter can bear heavy loads, and the temperature of working occasions is not higher than 100 ℃.
Disclosure of Invention
The utility model aims to provide a locking nut with ball positioning wedging function, which is suitable for locking nuts with different loads, vibration and high and low temperature occasions and improves the locking reliability of the nuts.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model relates to a lock nut with ball positioning wedging function, which comprises: the nut comprises a nut body, an outer sleeve accessory and balls, wherein an outer circle of the upper part of the nut body is provided with a right circular cylinder, the root of the right circular cylinder is provided with an annular groove, the root of an inner ring of the outer sleeve accessory is provided with an annular table, three through holes with the same diameter as the balls are formed in the third circumferential part of the right circular cylinder from outside to inside, the depth dimension of each through hole is equal to the diameter dimension of each ball, the bottom hole of each through hole is provided with a cone-shaped bottom edge, and three fan-shaped circular grooves are formed in the third circumferential part of the outer sleeve accessory; during installation, the locking nut is screwed into the locked bolt, after the locked bolt rotates to a position to be locked, the outer sleeve accessory is rotated relative to the nut main body, the balls leave the fan-shaped circular groove, the balls gradually wedge into threads of the locked bolt, and the threads of the locked bolt are plastically deformed, so that the locked bolt is locked.
Preferably, the diameter size of the right cylinder is 2 times the diameter size of the inner thread crest of the nut main body plus the diameter size of the ball, and a gap is reserved between the inner ring of the outer sleeve accessory and the outer ring of the right cylinder.
Preferably, the radial dimension of the fan-shaped circular groove is 0.9 times the diameter dimension of the ball, and the diameter dimension of the outer circle tangent to the three fan-shaped circular grooves is equal to the diameter dimension of the external thread crest of the locked bolt plus 2 times the diameter dimension of the ball.
Preferably, the annular table is embedded in the annular groove, a gap is reserved between the side wall of the annular groove and the side wall of the annular table, and the diameter size of the inner ring of the annular table is smaller than that of the outer ring of the right cylinder.
Preferably, the number of thread heads of the locked bolt is 1, the screwing direction of the locked bolt is right-handed, and the thread diameter of the locked bolt is M12-M64.
The utility model has the beneficial effects that: after the locking nut is screwed into the locked bolt to be locked, the outer sleeve accessory is rotated relative to the nut main body, the rolling balls are gradually wedged into the threads of the locked bolt, the rolling balls leave the fan-shaped circular groove, and the threads of the locked bolt are plastically deformed, so that the locked bolt is locked.
Drawings
FIG. 1 is a general block diagram of a ball detent wedging cage nut of one embodiment of the present utility model.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a main body structure view of a round nut of a lock nut wedged by ball positioning according to an embodiment of the present utility model.
Fig. 4 is a top view of fig. 3.
Figure 5 is a block diagram of the jacket attachment of a ball detent wedging lock nut of one embodiment of the utility model.
Fig. 6 is a top view of fig. 5.
In the figure, 1, a nut main body; 2. a jacket accessory; 3. a ball; 4. an annular groove; 5. an annular table; 7. a locked bolt.
Detailed Description
As shown in fig. 1 to 6, a lock nut for wedging a ball in positioning manner according to this embodiment includes: the nut comprises a nut body 1, an outer sleeve accessory 2 and balls 3, wherein an outer circle of the upper part of the nut body 1 is provided with a right circular cylinder, the root of the right circular cylinder is provided with an annular groove 4, the root of the inner ring of the outer sleeve accessory 2 is provided with an annular table 5, three through holes with the same diameter as the balls 3 are formed in the third circumferential part of the right circular cylinder from outside to inside, the depth dimension of each through hole is equal to the diameter dimension of each ball, the bottom hole of each through hole is provided with a cone-shaped bottom edge, and three fan-shaped circular grooves are formed in the third circumferential part of the outer sleeve accessory 2; during installation, the locking nut is screwed into the locked bolt, the locked bolt 7 rotates to the position to be locked, the outer sleeve accessory 2 rotates relative to the nut main body 1, the balls 3 leave the fan-shaped circular groove, the balls 3 gradually wedge into the threads of the locked bolt 7, and the threads of the locked bolt 7 are plastically deformed, so that the locked bolt 7 is locked.
Specifically, at the circumferential three equal parts of the right cylinder, three through holes with the same diameter as the balls 3 are opened from the outside to the inside, and the bottom of the through holes is provided with an incomplete conical bottom edge, which can prevent the balls from falling off.
Specifically, under the numerical control processing condition, a high-precision, high-hardness, standardized and low-cost bearing ball is used as the ball 3 of the embodiment, and the ball 3 is used as a key element for positioning and locking, so that the high quality of a product, the reliability of use and the economical efficiency of manufacturing are ensured.
When the lock nut with the ball positioning wedging function is used, the three through holes are made to correspond to the fan-shaped circular groove, the locked bolt 7 is screwed in, after the position to be locked is reached, the outer sleeve accessory 2 is rotated relative to the nut main body 1, the ball 3 is gradually wedged into the thread of the locked bolt 7, the thread is subjected to plastic deformation, the ball 3 leaves the fan-shaped circular groove, one part of the ball 3 is in the hole, and the other part of the ball is embedded in the thread of the locked bolt 7, so that the reliable locking of the bolt is realized.
In this embodiment, the diameter of the regular cylinder is 2 times the diameter of the ball 3 plus the diameter of the internal thread crest of the nut body 1, and a gap is left between the inner ring of the jacket accessory 2 and the outer ring of the regular cylinder.
Specifically, the diameter of the right cylinder is 2 times the diameter of the ball 3, which is added to the diameter of the internal thread crest of the nut body 1, and a gap of 0.1 mm is left between the inner ring of the outer sleeve accessory 2 and the outer ring of the right cylinder, so that the diameter of the outer ring of the right cylinder and the diameter of the inner ring of the outer sleeve accessory 2 are determined.
In this embodiment, the radius of the sector-shaped circular groove is 0.9 times the diameter of the ball 3, and the diameter size of the outer circle tangent to the three sector-shaped circular grooves is equal to the diameter size of the external thread crest of the locked bolt 7 plus 2 times the diameter size of the ball 3.
Specifically, three sector-shaped circular grooves with the diameter of 0.9 times of the balls are cut at three equal parts of the inner ring of the outer sleeve accessory 2, so that the size of the sector-shaped circular grooves is determined, the diameter size of the outer circle tangent to the three sector-shaped circular grooves is equal to the diameter size of the outer thread crests of the locked bolts 7 plus 2 times of the balls 3, the circle center position of the sector-shaped circular grooves is determined, and the machining and positioning during manufacturing of the sector-shaped circular grooves on the outer sleeve accessory 2 are facilitated.
In this embodiment, the annular table 5 is embedded in the annular groove 4, a gap is left between the side wall of the annular groove 4 and the side wall of the annular table 5, and the diameter size of the inner ring of the annular table 5 is smaller than the diameter size of the outer ring of the right cylinder.
As a preferred solution, the annular table 5 cooperates with the annular groove 4 such that the annular table 5 is embedded in the annular groove 4, thereby fixing the nut body 1 and the jacket accessory 2 in relation to each other in the axial direction. A gap is left between the side wall of the annular groove 4 and the side wall of the annular table 5, so that the annular groove 4 and the annular table 5 can rotate relatively, and the nut main body and the jacket accessory can rotate relatively. An annular table 5 with a diameter slightly smaller than that of a right cylinder is reserved at the root part of the inner ring of the outer sleeve accessory 2, and the diameters of the other inner rings of the outer sleeve accessory 2 are slightly larger, so that a gap is reserved between the inner ring of the outer sleeve accessory 2 and the outer ring of the right cylinder, and the outer sleeve accessory 2 can conveniently rotate relative to the nut main body 1.
In this embodiment, the number of thread heads of the locked bolt is 1, the rotation direction of the locked bolt is right-handed, and the thread diameter of the locked bolt is M12-M64.
The locking nut improves the reliability of nut locking and is suitable for occasions with different loads, vibration and high and low temperatures.
Claims (5)
1. A lock nut for ball positioning wedging comprising: the nut comprises a nut main body (1), an outer sleeve accessory (2) and balls (3), wherein an outer circle of the upper part of the nut main body (1) is provided with a right circular cylinder, the root of the right circular cylinder is provided with an annular groove (4), the root of the inner ring of the outer sleeve accessory (2) is provided with an annular table (5), three through holes with the same diameter as the balls (3) are formed in the circumferential three equal parts of the right circular cylinder from outside to inside, the depth dimension of each through hole is equal to the diameter dimension of each ball (3), the bottom hole of each through hole is provided with a conical bottom edge, and three fan-shaped circular grooves are formed in the three equal parts of the inner ring of the outer sleeve accessory (2); during installation, the locking nut is screwed into the locked bolt (7), after the locked bolt (7) rotates to a position to be locked, the outer sleeve accessory (2) rotates relative to the nut main body (1), the balls (3) leave the fan-shaped circular groove, the balls (3) are forced to gradually wedge into threads of the locked bolt (7), and the threads of the locked bolt (7) are subjected to plastic deformation, so that the locked bolt (7) is locked.
2. The ball positioning wedged locking nut as claimed in claim 1, wherein the diameter size of said right cylinder is 2 times the diameter size of the internal thread crest of said nut body (1) plus the diameter size of said balls (3).
3. The ball positioning wedged locking nut as claimed in claim 1, wherein the radial dimension of said sector-shaped circular groove is 0.9 times the diameter dimension of said ball (3), and the diameter dimension of the outer circle tangent to said three sector-shaped circular grooves is equal to the diameter dimension of said ball (3) of the external thread crest diameter dimension of said locked bolt (7) plus 2 times.
4. The ball positioning wedging lock nut according to claim 1, characterized in that the annular table (5) is embedded in the annular groove (4), a gap is left between the side wall of the annular groove (4) and the side wall of the annular table (5), and the diameter size of the inner ring of the annular table (5) is smaller than the diameter size of the outer ring of the right cylinder.
5. The ball positioning wedged locking nut as claimed in claim 1, wherein the number of thread heads of the locked bolt (7) is 1, the rotation direction of the locked bolt (7) is right-handed, and the thread diameter of the locked bolt (7) is M12-M64.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322703379.XU CN220791732U (en) | 2023-09-29 | 2023-09-29 | Lock nut with ball positioning wedging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322703379.XU CN220791732U (en) | 2023-09-29 | 2023-09-29 | Lock nut with ball positioning wedging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791732U true CN220791732U (en) | 2024-04-16 |
Family
ID=90630472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322703379.XU Active CN220791732U (en) | 2023-09-29 | 2023-09-29 | Lock nut with ball positioning wedging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791732U (en) |
-
2023
- 2023-09-29 CN CN202322703379.XU patent/CN220791732U/en active Active
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