CN209959682U - Anti-loosening shaft sleeve nut - Google Patents
Anti-loosening shaft sleeve nut Download PDFInfo
- Publication number
- CN209959682U CN209959682U CN201920749707.0U CN201920749707U CN209959682U CN 209959682 U CN209959682 U CN 209959682U CN 201920749707 U CN201920749707 U CN 201920749707U CN 209959682 U CN209959682 U CN 209959682U
- Authority
- CN
- China
- Prior art keywords
- sleeve nut
- pin
- shaft sleeve
- groove
- hole
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003754 machining Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Images
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model provides a locking axle sleeve nut, includes an axle sleeve nut and a stopping round pin, has a plurality of vertical groove on the anterior inner bore wall of axle sleeve nut, and the width of vertical groove is slightly wider than the diameter of stopping round pin, and the degree of depth in vertical groove is less than the length of stopping round pin. The rear part of the longitudinal groove is provided with an annular process groove which is mainly used for tool withdrawal during machining of the longitudinal groove, and the width of the annular process groove is smaller than the diameter of the retaining pin. The rear part of the shaft sleeve nut is a fine thread as the conventional shaft sleeve nut, the thread direction is opposite to the rotation direction of the rotor in normal working, and the tail part of the shaft sleeve nut is provided with a radial groove for mounting the shaft sleeve nut and used for placing a hook wrench in mounting. The shaft matched with the shaft sleeve nut is drilled with a pin hole at a corresponding position, the shaft matched with the shaft sleeve nut is drilled with an indicating hole, the indicating hole and the pin hole are located at the same circumferential position, the pin hole is in clearance fit with the retaining pin, and the depth of the pin hole is slightly larger than that of the retaining pin.
Description
Technical Field
The utility model belongs to the field of machinary, in particular to impeller machinery rotor part locking axle sleeve nut.
Background
In the structure of the pump, in order to axially fix the impeller and also to protect the shaft, a boss is often mounted behind the impeller hub and axially fixed by a boss nut. To prevent the bushing nut from loosening, the nut is often rotated in the opposite direction to the rotor. However, the rotor may rotate reversely due to sudden power failure or other reasons, so that if no anti-loosening measures are taken, the sleeve nut is often loosened, the normal operation of the equipment is affected by a light person, and a safety accident is caused seriously.
SUMMERY OF THE UTILITY MODEL
Based on the problems existing in the prior art, the utility model aims at providing a locking axle sleeve nut, can locking not hard up, simple structure.
The utility model provides a technical scheme that above-mentioned problem adopted is:
the utility model provides a locking axle sleeve nut, includes an axle sleeve nut and a stopping round pin, there is a plurality of vertical groove on the anterior inner bore wall of axle sleeve nut, and the width of vertical groove slightly is wider than the diameter of stopping round pin, and the degree of depth in vertical groove is less than the length of stopping round pin.
Furthermore, an annular process groove is formed in the rear portion of the longitudinal groove, the annular process groove is mainly used for tool withdrawal when the longitudinal groove is machined, and the width of the annular process groove is smaller than the diameter of the retaining pin.
Furthermore, the rear part of the shaft sleeve nut is a fine thread as the conventional shaft sleeve nut, the thread direction is opposite to the rotation direction of the rotor in normal work, and a radial groove for mounting the shaft sleeve nut is arranged at the tail part of the shaft sleeve nut and used for placing a hook wrench in mounting. A pin hole is drilled at the corresponding position of the shaft matched with the shaft sleeve nut, the pin hole is in clearance fit with the retaining pin, and the depth of the pin hole is slightly larger than that of the retaining pin.
Further, an indicating hole is drilled in the shaft matched with the sleeve nut, and the indicating hole and the pin hole are located at the same circumferential position.
During installation, the anti-rust oil is coated on the retaining pin and the pin hole in the shaft, the pin hole is upward, the retaining pin is placed in the pin hole, the retaining pin naturally falls into the bottom of the pin hole due to gravity, the impeller and the shaft are sleeved, the axial position of the impeller and the shaft is adjusted, and the shaft sleeve nut is fastened. When the stopping pin is aligned with the longitudinal groove on the shaft sleeve nut, the stopping pin is inserted into the longitudinal groove to clamp the shaft sleeve nut. During disassembly, the rotor is rotated to the position that the indicating hole faces upwards, the pin hole is located at the same circumferential position with the pin hole, the pin hole is located at the position facing upwards, the stopping pin naturally falls into the bottom of the pin hole due to gravity during installation, and therefore the shaft sleeve nut can be withdrawn.
The utility model has the advantages that: the structure is very simple, the loosening of the shaft sleeve nut during the reverse rotation can be prevented, and the installation and the disassembly can be very convenient.
Drawings
Fig. 1 is a schematic structural view of a locknut sleeve.
Fig. 2 is a schematic structural diagram of the anti-loose sleeve nut during installation.
Fig. 3 is a schematic structural view of the anti-loose sleeve nut during rotation.
In the figure: 1. the anti-loosening device comprises a shaft sleeve nut, 2 parts of a longitudinal groove, 3 parts of an annular process groove, 4 parts of threads, 5 parts of a radial groove, 6 parts of a backstop pin, 7 parts of a shaft, 8 parts of a pin hole and 9 parts of an indicating hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The utility model provides a locking axle sleeve nut, includes an axle sleeve nut (1) and a stopping round pin (6), has a plurality of vertical groove (2) on the anterior inner bore wall of axle sleeve nut (1), and the width of vertical groove (2) is slightly wider than the diameter of stopping round pin (6), the degree of depth in vertical groove (2) is less than the length of stopping round pin (6). The rear part of the longitudinal groove (2) is provided with an annular process groove (3), the annular process groove (3) is mainly used for tool withdrawal during machining of the longitudinal groove, and the width of the annular process groove (3) is smaller than the diameter of the retaining pin (6). The rear part of the shaft sleeve nut (1) is a fine thread (4) as the conventional shaft sleeve nut, the direction of the thread (4) is opposite to the rotating direction of the rotor in normal working, and the tail part of the shaft sleeve nut is provided with a radial groove (5) for mounting the shaft sleeve nut (1) and is used for placing a hook wrench in mounting. A pin hole (8) is drilled at the corresponding position of a shaft matched with the shaft sleeve nut (1), the pin hole (8) is in clearance fit with the retaining pin (6), and the depth of the pin hole (8) is slightly larger than that of the retaining pin (6). An indicating hole (9) is drilled on the shaft matched with the shaft sleeve nut, and the indicating hole (9) and the pin hole (8) are positioned at the same circumferential position.
During installation, the anti-rust oil is fully coated on the retaining pin (6) and the pin hole (8) on the shaft, the pin hole (8) faces upwards, the retaining pin is placed (6) in the pin hole (8), the retaining pin (6) naturally falls into the bottom of the pin hole (8) due to gravity, the impeller and the shaft are well sleeved and well adjusted in axial position, and the shaft sleeve nut (1) is fastened. When the anti-return pin (6) is aligned with the longitudinal groove (2) on the shaft sleeve nut (1), the anti-return pin (6) is inserted into the longitudinal groove (2) to clamp the shaft sleeve nut (1) no matter whether the rotor rotates forwards or backwards, the anti-return pin (6) is far away from the shaft center due to centrifugal force.
When the anti-backing device is disassembled, the rotor is rotated until the indicating hole (9) faces upwards, the indicating hole (9) and the pin hole (8) are located at the same circumferential position, so that the pin hole (8) is also located at the position facing upwards, the anti-backing pin (6) also naturally falls into the bottom of the pin hole (8) due to gravity during installation, and the shaft sleeve nut can be withdrawn.
Claims (4)
1. The utility model provides a locking axle sleeve nut which characterized in that: the anti-loosening device comprises a shaft sleeve nut (1) and a retaining pin (6), wherein a plurality of longitudinal grooves (2) are formed in the inner hole wall of the front portion of the shaft sleeve nut (1), the width of each longitudinal groove (2) is slightly wider than the diameter of the retaining pin (6), and the depth of each longitudinal groove (2) is smaller than the length of the retaining pin (6).
2. The anti-loosening sleeve nut as claimed in claim 1, wherein: an annular process groove (3) is formed in the rear portion of the longitudinal groove (2) and used for retracting when the longitudinal groove is machined; the width of the annular process groove (3) is smaller than the diameter of the retaining pin (6).
3. The anti-loosening sleeve nut as claimed in claim 1, wherein: a pin hole (8) is drilled at the corresponding position of a shaft matched with the shaft sleeve nut (1), the pin hole (8) is in clearance fit with the retaining pin (6), and the depth of the pin hole (8) is slightly larger than that of the retaining pin (6).
4. The anti-loosening sleeve nut as claimed in claim 1, wherein: an indicating hole (9) is drilled at the corresponding position of the shaft matched with the shaft sleeve nut (1), and the indicating hole (9) and the pin hole (8) are positioned at the same circumferential position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749707.0U CN209959682U (en) | 2019-05-23 | 2019-05-23 | Anti-loosening shaft sleeve nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749707.0U CN209959682U (en) | 2019-05-23 | 2019-05-23 | Anti-loosening shaft sleeve nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209959682U true CN209959682U (en) | 2020-01-17 |
Family
ID=69246351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920749707.0U Expired - Fee Related CN209959682U (en) | 2019-05-23 | 2019-05-23 | Anti-loosening shaft sleeve nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209959682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043551A (en) * | 2019-05-23 | 2019-07-23 | 湖南机电职业技术学院 | Locking sleeve nut |
-
2019
- 2019-05-23 CN CN201920749707.0U patent/CN209959682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043551A (en) * | 2019-05-23 | 2019-07-23 | 湖南机电职业技术学院 | Locking sleeve nut |
| CN110043551B (en) * | 2019-05-23 | 2024-03-22 | 湖南机电职业技术学院 | Anti-loose shaft sleeve nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209811821U (en) | Tool apron structure of machine tool | |
| CN201744685U (en) | Built-up mandrel for lathe | |
| CN113804423B (en) | Ultra-high-speed direct-connection driving over-rotation test device | |
| CN209959682U (en) | Anti-loosening shaft sleeve nut | |
| CN201090614Y (en) | Bearing bush | |
| CN100577350C (en) | Anti-loose mechanism for locking knife tool used in cutting machine | |
| CN110043551B (en) | Anti-loose shaft sleeve nut | |
| CN102588323A (en) | Locking and transmission device of rotor components of vertical multi-stage pump | |
| CN212748273U (en) | Tool for impeller overspeed test | |
| CN206028781U (en) | Roll over to boring drill bit fixture | |
| CN210013863U (en) | Self-locking centrifugal compressor impeller structure | |
| CN210918920U (en) | Self-rotating dynamic stabilization short joint | |
| CN108678813B (en) | Pull rod rotor with self-locking nut device | |
| CN109555723B (en) | Detachable impeller seal head structure for dredge pump | |
| CN215789584U (en) | Turbine drilling tool blade dismounting device | |
| CN211008970U (en) | Temporary braking device for main shaft of wind generating set | |
| CN216589694U (en) | Be applied to fan driftage brake block | |
| CN111975287B (en) | Mounting process for hub cap of impeller of nuclear main pump | |
| CN219213018U (en) | Portable tool for disassembling rubber roller bearing sleeve and bearing | |
| CN211940497U (en) | Impeller assembly | |
| CN220927322U (en) | Locking device for flywheel main shaft of steel cord stranding machine | |
| CN212774577U (en) | Impact type impeller for water turbine | |
| CN210033932U (en) | Thrust device of submersible pump | |
| CN221074935U (en) | Round nut locking device for planetary reducer | |
| CN215980502U (en) | Boring shaft supporting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |