CN220337245U - Nut structure capable of adjusting play of shaft end bearing - Google Patents
Nut structure capable of adjusting play of shaft end bearing Download PDFInfo
- Publication number
- CN220337245U CN220337245U CN202321872146.6U CN202321872146U CN220337245U CN 220337245 U CN220337245 U CN 220337245U CN 202321872146 U CN202321872146 U CN 202321872146U CN 220337245 U CN220337245 U CN 220337245U
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- China
- Prior art keywords
- nut
- shaft head
- pin
- bearing
- shaft
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- 238000012856 packing Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses a nut structure capable of adjusting bearing play of a shaft end, and relates to the technical field of bearing play adjustment. The nut is screwed with the shaft head and then presses the washer, the cotter pin penetrates through the nut and the shaft head and is fixedly connected with the nut and the shaft head, a plurality of tooth grooves are uniformly formed in one end of the nut along the circumference, at least two pin holes are formed in the shaft head, the axes of all the pin holes are on the same plane, the central axis of each pin hole is intersected with the central axis of the shaft head, and the cotter pin penetrates through the tooth grooves and the pin holes to fixedly connect the nut with the shaft head. The utility model improves the adjustment precision of the bearing clearance, reduces the processing procedures of parts and the shaft body, and ensures that the assembly of the bearing is simpler, more accurate and more reliable.
Description
Technical Field
The utility model relates to the technical field of bearing installation, in particular to a nut structure capable of adjusting play of a shaft end bearing.
Background
Bearings (bearings) are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator, reduce the friction coefficient in the course of its movement and ensure its rotation accuracy. The size of the play (referred to as working play) during operation of the bearing has an effect on the rolling fatigue life, temperature rise, noise, vibration and other properties of the bearing. The bearing play is a movement amount when one of the inner ring and the outer ring is fixed when the bearing is not mounted on the shaft or the bearing housing, and then the other is moved in the radial direction or the axial direction. According to the direction of movement, radial play and axial play can be divided. The existing method for adjusting the bearing clearance generally adopts the combination of a shaft head gasket, an inner nut and an outer nut of the shaft head, the circumferential positioning of the inner nut of the shaft head is carried out by a shaft head gasket pin hole and a shaft head inner nut fixing pin, and the outer nut of the shaft head is locked by a locking gasket. The method has the advantages of low bearing play adjustment precision, more parts and complex assembly.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the nut structure capable of adjusting the bearing clearance at the shaft end, so that the adjustment precision of the bearing clearance can be improved, the processing procedures of parts and a shaft body are reduced, and the assembly of the bearing is simpler, more accurate and more reliable.
In order to solve the technical problems, the utility model adopts the following technical scheme: the nut structure comprises a nut, a washer and a cotter pin, wherein the washer is pressed on the bearing, the nut is pressed on the washer after being screwed with a shaft head, and the cotter pin penetrates through the nut and the shaft head and fixedly connects the nut and the shaft head; one end of the nut is uniformly provided with a plurality of tooth-shaped grooves along the circumference, the shaft head is provided with at least two pin holes, the axes of all the pin holes are on the same plane, the central axis of each pin hole is intersected with the central axis of the shaft head, and the cotter pin penetrates through the tooth-shaped grooves and the pin holes to fixedly connect the nut and the shaft head together.
Preferably, a cylindrical groove is formed in the end face of the shaft head, and the cotter pin freely extends into the groove after passing through the tooth-shaped groove and the pin hole.
Preferably, the number of the pin holes is three, the included angles between the centers of every two adjacent pin holes are respectively 51 degrees and 56 degrees, and the number of the tooth grooves is 16.
Preferably, the nut is further provided with a ring of operating parts, and the operating parts are hexagonal or octagonal.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: the nut is provided with 16 tooth grooves, 3 pin holes irregularly indexed on the shaft body are matched, and the cotter pin is inserted into the tooth grooves and the pin holes to adjust the rotation angle of the nut, so that the circumferential locking precision of the nut is improved, the purpose of improving the bearing play precision is achieved on the basis of using fewer parts, the running precision of the bearing is improved, the faults of heating, abrasion and the like caused by low bearing play adjustment precision are reduced, and the running, maintenance and repair cycle of the bearing is prolonged.
Drawings
FIG. 1 is an exploded view of the present utility model;
in the figure: 1. a nut; 101. a tooth-shaped groove; 102. an operation unit; 2. a gasket; 3. a cotter pin; 4. a bearing; 5. a shaft head; 501. a pin hole; 502. a groove.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
As shown in fig. 1, the nut structure comprises a nut 1, a washer 2 and a cotter pin 3, wherein the washer 2 is pressed on a bearing 4, the nut 1 is screwed with a shaft head 5 and then is pressed on the washer 2, and the cotter pin 3 penetrates through the nut 1 and the shaft head 5 and fixedly connects the nut 1 and the shaft head 5 together.
Wherein, the one end at nut 1 evenly is equipped with 16 tooth grooves along circumference, is equipped with three pinhole on spindle nose 5, and the central contained angle of every adjacent two pinhole is 51 respectively and 56. The axes of the three pin holes 501 are on the same plane, the central axis of each pin hole 501 is intersected with the central axis of the shaft head 5, and the cotter pin 3 passes through the tooth-shaped groove 101 and the pin hole 501 to fixedly connect the nut 1 and the shaft head 5 together. A cylindrical groove 502 is formed on the end surface of the shaft head 5, and the cotter pin 3 freely extends into the groove 502 after passing through the tooth-shaped groove 101 and the pin hole 501. For convenient operation, the nut 1 is also provided with a circle of operation part 102 which is hexagonal or octagonal and can be rotated and adjusted by clamping the nut 1 by special spanner pliers.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (4)
1. The utility model provides a nut structure that can carry out adjustment to axle end bearing play, includes nut, packing ring, cotter pin, the packing ring is pressed on the bearing, and the nut is pressed after connecing soon with the spindle nose on the packing ring, the cotter pin passes nut and spindle nose and with both fixed connection together, its characterized in that the one end of nut evenly is equipped with a plurality of tooth grooves along the circumference be equipped with two at least pinholes on the spindle nose, all the axis of pinhole is on the coplanar, every the central axis of pinhole all with the central axis of spindle nose intersects, the cotter pin follow tooth groove with pass in the pinhole with nut with spindle nose fixed connection together.
2. A nut structure for adjusting play of a shaft end bearing according to claim 1, wherein a cylindrical recess is provided on an end face of the shaft head, and the cotter pin freely extends into the recess after passing through the tooth-shaped recess and the pin hole.
3. A nut structure for adjusting play of a shaft end bearing according to claim 1, wherein three pin holes are provided, the included angle between the centers of every two adjacent pin holes is 51 ° and 56 °, and the number of tooth grooves is 16.
4. A nut structure for adjusting play of a shaft end bearing as defined in claim 1, wherein said nut is further provided with a ring of operating portions, said operating portions being hexagonal or octagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321872146.6U CN220337245U (en) | 2023-07-17 | 2023-07-17 | Nut structure capable of adjusting play of shaft end bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321872146.6U CN220337245U (en) | 2023-07-17 | 2023-07-17 | Nut structure capable of adjusting play of shaft end bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337245U true CN220337245U (en) | 2024-01-12 |
Family
ID=89460553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321872146.6U Active CN220337245U (en) | 2023-07-17 | 2023-07-17 | Nut structure capable of adjusting play of shaft end bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337245U (en) |
-
2023
- 2023-07-17 CN CN202321872146.6U patent/CN220337245U/en active Active
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