CN219975294U - High-reliability anti-slip structure for outer ring of driving axle bearing of heavy commercial vehicle - Google Patents
High-reliability anti-slip structure for outer ring of driving axle bearing of heavy commercial vehicle Download PDFInfo
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- CN219975294U CN219975294U CN202320895097.1U CN202320895097U CN219975294U CN 219975294 U CN219975294 U CN 219975294U CN 202320895097 U CN202320895097 U CN 202320895097U CN 219975294 U CN219975294 U CN 219975294U
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- outer ring
- bearing
- locating pin
- commercial vehicle
- driving axle
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Abstract
The utility model discloses a high-reliability anti-slip structure for an outer ring of a driving axle bearing of a heavy-duty commercial vehicle, which comprises a bearing, a fixing assembly and a locating pin, wherein the fixing assembly is provided with a locating pin hole, the outer ring of the bearing is provided with a limiting groove, the locating pin is connected with the locating pin hole, and the locating pin is clamped with the limiting groove. According to the utility model, the locating pin and the limiting groove are arranged, so that the locating pin is utilized to rotate and limit the outer ring of the bearing, and the outer ring is prevented from slipping.
Description
Technical Field
The utility model belongs to the field of main speed reducers of driving axles of heavy-duty commercial vehicles, and particularly relates to a high-reliability anti-slip structure for an outer ring of a driving axle bearing of a heavy-duty commercial vehicle.
Background
The main reducer of the driving axle of the heavy commercial vehicle has the functions of reducing speed and increasing torque, distributing torque, differentiating left and right and the like, and is a key component of the axle of the commercial vehicle, and the reliability of the main reducer is very important.
In the assembly process of the main speed reducer of the vehicle axle, the backlash and the meshing print of the main bevel gear and the driven bevel gear need to be adjusted on site. The engineering is generally achieved by adjusting the position of a passive gear located on the differential assembly by adjusting a nut. In order to facilitate adjustment of the position of the driven wheel, the outer ring of the differential bearing is not in tight fit with the main reducer housing assembly, and generally adopts transition fit or small interference fit. But heavy commercial car transaxle has the characteristics that the load is big, the transmission moment of torsion is big, under some abominable operating mode, the phenomenon that the holding power is insufficient can appear in transition fit or little interference fit's bearing outer lane, and the bearing outer lane is easy to slip in tile lid and main reducer shell.
The outer ring slip is liable to cause the end face abrasion of the adjusting nut matched with the gear pair, the end face abrasion of the adjusting nut can cause the gap between the driving bevel gear and the driven bevel gear to change, and the gear is deviated from the correct meshing position, so that the gear pair is easy to strike teeth, the failure of the whole main reducer assembly is caused, and the reliability of the main reducer of the driving axle of the heavy-duty commercial vehicle is greatly reduced.
Disclosure of Invention
The utility model aims to provide a high-reliability anti-slip structure of a bearing outer ring of a driving axle of a heavy commercial vehicle, which solves a series of problems that under certain severe working conditions of the driving axle of the existing heavy commercial vehicle, the end face of an adjusting nut matched with the bearing outer ring is worn due to slip of the bearing outer ring, so that a gap between an active bevel gear and a passive bevel gear is changed, and the gear deviates from a correct meshing position, so that a gear pair is easy to strike teeth, and the failure of a main speed reducer assembly of the whole axle is caused.
In order to solve the problems in the prior art, the utility model adopts the following technical scheme:
a high-reliability anti-slip structure for an outer ring of a driving axle bearing of a heavy commercial vehicle comprises a bearing, a fixing assembly and a positioning pin.
The fixed assembly is provided with a positioning pin hole.
And the outer ring of the bearing is provided with a limit groove.
The locating pin is connected to the locating pin hole, and the locating pin is clamped with the limiting groove.
Through setting up locating pin and spacing groove, utilize locating pin to rotate spacing to the outer lane of bearing, avoid the outer lane to appear skidding.
Further, the fixed component is a main speed reducer shell and a tile cover, the positioning pin hole is formed in the main speed reducer shell or the tile cover, and the positioning pin can be connected to the main speed reducer shell or the tile cover or a plurality of positioning pins are arranged and connected to the main speed reducer shell and the tile cover.
Further, the positioning pin holes are formed in the inner wall of the main speed reducer shell or the inner wall of the tile cover. And a positioning pin hole is formed in the main speed reducer shell or the tile cover, and the outer ring of the bearing can be limited after the positioning pin is connected.
Further, the limit groove is an open groove.
Further, the limit groove is a closed groove. The open slot and the closed slot can be used in the utility model, so long as the open slot and the closed slot can be matched with the positioning pin to limit the outer ring of the bearing.
The beneficial effects of the utility model are as follows: the utility model processes pin holes on the main speed reducer shell or the tile cover and assembles pins, and a limit groove is formed on the outer ring of the differential bearing and assembled at the limit pin. The rotation freedom degree of the bearing outer ring is limited through the combined action of the limiting pin and the bearing limiting groove, the bearing outer ring is prevented from slipping under severe working conditions, the end face abrasion of the adjusting nut caused by the slipping of the bearing outer ring can be effectively prevented, the gear failure rate of the main reducer main driven gear pair is reduced, the reliability of the main reducer assembly is improved, and the mechanical locking is realized through the mounting pin.
Drawings
FIG. 1 is a schematic diagram of an assembly of the present utility model;
FIG. 2 is a second schematic diagram of the assembly of the present utility model;
FIG. 3 is a schematic view of a bearing according to the present utility model;
fig. 4 is a schematic diagram of a bearing according to a second embodiment of the present utility model.
1-positioning pins; 2-bearing; 3-final drive housing; 4-tile cover; 5-adjusting the nut; 6-a driven gear; 7-open slot, 8-closed slot.
Detailed Description
The utility model is further described with reference to the drawings and reference numerals.
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
The terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
Example 1:
as shown in fig. 1-4, a high-reliability anti-slip structure for the outer ring of a driving axle bearing of a heavy-duty commercial vehicle comprises a bearing 2, a fixing assembly and a positioning pin 1.
The fixed assembly is provided with a positioning pin hole.
And a limiting groove is formed in the outer ring of the bearing 2.
The locating pin 1 is connected to the locating pin hole, and the locating pin 1 is clamped with the limiting groove.
Through setting up locating pin 1 and spacing groove, utilize locating pin 1 to rotate spacingly to the outer lane of bearing 2, avoid the outer lane to appear skidding.
The fixing component is a main speed reducer shell 3 and a tile cover 4, and the positioning pin hole is formed in the main speed reducer shell 3 or the tile cover 4.
The locating pin 1 can be connected to the final drive housing 3 or to the tile cap 4, or a plurality of locating pins 1 can be provided and connected to both the final drive housing 3 and the tile cap 4.
The locating pin holes are arranged on the inner wall of the main reducer shell 3 or the inner wall of the tile cover 4.
The main reducer shell 3 or the tile cover 4 is internally provided with a positioning pin hole, and the positioning pin 1 can limit the outer ring of the bearing 2 after being connected.
The limit groove is an open groove 7.
The limit groove is a closed groove 8.
Both the open groove 7 and the closed groove 8 can be used in the utility model, as long as the open groove and the closed groove can cooperate with the locating pin 1 to limit the outer ring of the bearing 2.
One end of the bearing 2 is abutted with an adjusting nut 5, and an annular locking piece is connected to the adjusting nut 5.
The connection of the adjusting nut 5 to the bearing 2 belongs to the prior art and is not modified here.
Example 2:
as shown in figures 1-4, the high-reliability anti-slip structure of the outer ring of the driving axle bearing of the heavy-duty commercial vehicle comprises a locating pin 1, a bearing 2, a main speed reducer shell 3 and a tile cover 4, wherein a limiting groove is formed in the outer ring of the bearing 2, a locating pin hole is formed in the main speed reducer shell 3 or the tile cover 4, and the locating pin 1 is fixedly assembled in the locating pin hole of the main speed reducer shell 3 or the tile cover 4.
The main reducer housing 3 is connected with a driven gear 6.
The limit groove is not limited to the two forms of the structure of the open groove 7 and the structure of the closed groove 8.
The pin can limit the rotation freedom degree of the outer ring of the bearing 2 and prevent the outer ring of the bearing 2 from sliding.
The bearing 2 is adjustable in the axial direction of the pin by means of an adjustment nut 5.
The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.
Claims (5)
1. The utility model provides a heavy commercial car transaxle bearing inner race high reliability antiskid changes structure which characterized in that: comprises a bearing (2), a fixing component and a locating pin (1);
the fixing component is provided with a positioning pin hole;
the outer ring of the bearing (2) is provided with a limit groove;
the locating pin (1) is connected to the locating pin hole, and the locating pin (1) is clamped with the limiting groove.
2. The high-reliability anti-slip structure of the outer ring of the driving axle bearing of the heavy-duty commercial vehicle according to claim 1, wherein: the fixing component is a main speed reducer shell (3) and a tile cover (4), and the positioning pin hole is formed in the main speed reducer shell (3) or the tile cover (4).
3. The high-reliability anti-slip structure of the outer ring of the driving axle bearing of the heavy-duty commercial vehicle according to claim 2, wherein: the positioning pin holes are formed in the inner wall of the main speed reducer shell (3) or the inner wall of the tile cover (4).
4. The high-reliability anti-slip structure of the outer ring of the driving axle bearing of the heavy-duty commercial vehicle according to claim 1, wherein: the limit groove is an open groove (7).
5. The high-reliability anti-slip structure of the outer ring of the driving axle bearing of the heavy-duty commercial vehicle according to claim 1, wherein: the limit groove is a closed groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320895097.1U CN219975294U (en) | 2023-04-20 | 2023-04-20 | High-reliability anti-slip structure for outer ring of driving axle bearing of heavy commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320895097.1U CN219975294U (en) | 2023-04-20 | 2023-04-20 | High-reliability anti-slip structure for outer ring of driving axle bearing of heavy commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975294U true CN219975294U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320895097.1U Active CN219975294U (en) | 2023-04-20 | 2023-04-20 | High-reliability anti-slip structure for outer ring of driving axle bearing of heavy commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975294U (en) |
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2023
- 2023-04-20 CN CN202320895097.1U patent/CN219975294U/en active Active
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