CN112576616A - Tapered roller bearing with positioning groove on end surface of outer ring - Google Patents
Tapered roller bearing with positioning groove on end surface of outer ring Download PDFInfo
- Publication number
- CN112576616A CN112576616A CN202011332392.3A CN202011332392A CN112576616A CN 112576616 A CN112576616 A CN 112576616A CN 202011332392 A CN202011332392 A CN 202011332392A CN 112576616 A CN112576616 A CN 112576616A
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- China
- Prior art keywords
- outer ring
- tapered roller
- bearing
- roller bearing
- key
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- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a tapered roller bearing with a positioning groove on the end surface of an outer ring. Belongs to the technical field of automobile parts. The bearing mainly solves the problems that a manufacturer needs to be in interference fit under special installation conditions and the large bearing and the bearing which is frequently disassembled are difficult to install and disassemble. It is mainly characterized in that: comprises an inner ring, an outer ring, a retainer and a rolling body; a key groove is formed in the position corresponding to the outer diameter of the end face of the outer ring in a connection mode; after the bearing is assembled with the shell, the bearing ring and the fitting surface are circumferentially positioned through the matching of the flat key and the key groove, so that the purposes of accurate installation, positioning and use of the bearing and convenient installation and disassembly are achieved, and the installation and use requirements of manufacturers are met. The tapered roller bearing has the characteristics of simple structure, accurate positioning, convenience and rapidness in installation and disassembly, and is mainly used for tapered roller bearings for axle manufacturers and front and rear axles of engineering vehicles.
Description
Technical Field
The invention belongs to the technical field of automobile parts, and particularly relates to a tapered roller bearing with a positioning groove on the end surface of an outer ring, which is applied to a front axle and a rear axle hub of an engineering truck.
Background
The load born by the bearing can be divided into light load, conventional load and heavy load according to the size, can be divided into static load, variable load, impact load and the like according to the time change of the load, and can be divided into rotary load and direction-changing load according to the rotating direction. In some operating conditions, besides directional loads, combined loads formed by loads caused by imbalance, loads caused by vibration, loads caused by power transmission and the like exist, and the magnitude and direction of stress change is measured.
When the traditional conical bearing is installed and used, interference fit is adopted in principle when bearing rotary load, but the magnitude of interference is insufficient due to reasons such as temperature rise, materials and precision under complex conditions, the bearing can generate looseness, creep deformation, fretting wear and heat, and the pressure of the fit surface and the maximum stress are out of tolerance due to the increase of the interference fit amount. In this case special designs of the fit of the bearings are required.
For large bearings and bearings needing to be frequently disassembled on parts with special working conditions, the difficulty in installation and disassembly is increased when the conventional interference fit is adopted, and special design needs to be adopted for the fit of the bearings.
In order to avoid and eliminate the situations, the invention designs the tapered roller bearing with the positioning groove on the end surface of the outer ring, so that after the tapered roller bearing is assembled with the shell, the bearing ring and the matching surface are matched through the key groove to carry out circumferential positioning, and the problems of slipping caused by insufficient magnitude of interference of the bearing under complex working conditions, excessive surface stress caused by excessive magnitude of interference, and difficulty in mounting and dismounting large bearings and frequently-dismounted bearings are solved, thereby meeting the requirements of normal mounting and use of manufacturers.
Disclosure of Invention
The invention aims to provide a tapered roller bearing with a positioning groove on the end surface of an outer ring, and after the tapered roller bearing is assembled with a shell, a bearing ring is matched with a matching surface through a key groove to carry out circumferential positioning, so that the purposes of accurate installation, positioning and use of the bearing and convenience in installation and disassembly are achieved, and the installation and use requirements of manufacturers are met.
The technical solution of the invention is as follows: the utility model provides a tapered roller bearing of outer lane terminal surface area constant head tank, includes outer lane, inner circle, rolling element and holder, its characterized in that: and a key groove is arranged at the position corresponding to the outer diameter of the end surface of the outer ring.
In the technical scheme of the invention, the key groove is arranged at the position where the end surface of the outer ring is connected with the outer diameter.
The key groove starts from the large end surface of the outer ring and extends along the axial direction of the outer diameter.
The key groove in the technical scheme of the invention is of a semi-closed structure.
The key groove in the technical scheme of the invention is a single round head flat key groove.
The technical solution of the invention is that the number of the key slots is one or more than one; the more than one key grooves are uniformly distributed along the outer diameter and the circumference of the end surface.
The technical solution of the present invention is that the number of the key grooves is 2-5.
The key groove in the technical scheme of the invention is of a semi-closed structure; the key groove is a single round-head flat key groove; the number of the key grooves is four, and the four key grooves are uniformly distributed along the outer diameter and the circumference of the end face.
The invention has the following positive effects:
after the tapered roller bearing is assembled with the shell, the bearing ring and the matching surface are matched through the key groove to carry out circumferential positioning, so that the purposes of accurate installation, positioning and use of the bearing and convenience in installation and disassembly are achieved, and the installation and use requirements of manufacturers are met.
The tapered roller bearing has the characteristics of simple structure, accurate positioning, convenience and rapidness in installation and disassembly, and is mainly used for tapered roller bearings for axle manufacturers and front and rear axles of engineering vehicles.
Drawings
Fig. 1 is a schematic view of the structure of the conical bearing of the present invention.
Fig. 2 is a schematic diagram of four equal parts of the conical bearing key groove of the invention which are uniformly distributed.
Figure 3 is a schematic view of a conical bearing keyway according to the invention.
In the figure: 01. an outer ring; 02. an inner ring; 03. a rolling body; 04. a holder; 05. a keyway.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-3. The embodiment of the invention relates to a tapered roller bearing with a positioning groove on the end surface of an outer ring, which comprises the outer ring 01, an inner ring 02, a rolling body 03, a retainer 04 and the like, wherein the inner ring 02, the rolling body 03 and the retainer 04 are conventional tapered bearing parts. The outer race 01 is also identical to that of a conventional conical bearing except for the keyway 05.
The key groove 05 is arranged at the outer diameter joint of the end surface of the outer ring 01, starts from the large end surface of the outer ring 01 and extends along the axial direction of the outer diameter. The key slot 05 is a single round flat key slot of a semi-enclosed structure. The number of the key grooves 05 is four, and the key grooves are evenly distributed along the outer diameter and the circumference of the end face. When the bearing outer ring 01 is installed on the shell, a single round-head flat key can be embedded in the shell in a press-fitting mode, after the bearing outer ring is assembled with the shell, the bearing ring and the fitting surface are matched through a flat key groove to carry out circumferential positioning, and therefore the purposes that the bearing can be accurately installed, positioned and used and is convenient to install and disassemble are achieved, and the installation and use requirements of manufacturers are met.
Keyway 05 can also be used to mount keyways of other shapes of flat keys. The number of the key grooves 05 and the size of the key grooves are designed according to the effective wall thickness of the bearing outer ring 01, and the number of the key grooves can be one or more than one, and more than one key grooves 05 are uniformly distributed along the outer diameter and the circumference of the end face.
Claims (8)
1. The utility model provides a tapered roller bearing of outer lane terminal surface area constant head tank, includes outer lane (01), inner circle (02), rolling element (03) and holder (04), its characterized in that: and a key groove (05) is arranged at the position corresponding to the outer diameter of the end surface of the outer ring (01).
2. A tapered roller bearing with a detent groove in an outer ring end face according to claim 1, wherein: the key groove (05) is arranged at the position where the end surface of the outer ring (01) is connected with the outer diameter.
3. A tapered roller bearing with a detent groove in an outer ring end surface according to claim 2, wherein: the key groove (05) starts from the large end surface of the outer ring (01) and extends along the axial direction of the outer diameter.
4. A tapered roller bearing having positioning grooves in an outer ring end surface according to claim 2 or 3, wherein: the key groove (05) is of a semi-closed structure.
5. A tapered roller bearing having positioning grooves in an outer ring end surface according to claim 2 or 3, wherein: the key groove (05) is a single round-head flat key groove.
6. A tapered roller bearing having an outer ring end face with a detent groove according to claim 1, 2 or 3, wherein: the number of the key slots (05) is one or more than one; the more than one key grooves (05) are uniformly distributed along the outer diameter and the circumference of the end face.
7. A tapered roller bearing with locating grooves in the end face of the outer ring, according to claim 6, wherein: the number of the key grooves (05) is 2-5.
8. A tapered roller bearing having an outer ring end face with a detent groove according to claim 1, 2 or 3, wherein: the key groove (05) is of a semi-closed structure; the key groove (05) is a single round-head flat key groove; the number of the key grooves (05) is four, and the four key grooves are uniformly distributed along the outer diameter and the circumference of the end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332392.3A CN112576616A (en) | 2020-11-24 | 2020-11-24 | Tapered roller bearing with positioning groove on end surface of outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332392.3A CN112576616A (en) | 2020-11-24 | 2020-11-24 | Tapered roller bearing with positioning groove on end surface of outer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112576616A true CN112576616A (en) | 2021-03-30 |
Family
ID=75123256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011332392.3A Pending CN112576616A (en) | 2020-11-24 | 2020-11-24 | Tapered roller bearing with positioning groove on end surface of outer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112576616A (en) |
-
2020
- 2020-11-24 CN CN202011332392.3A patent/CN112576616A/en active Pending
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