CN215370556U - Anti-rotation structure for hub nut of heavy-duty vehicle - Google Patents
Anti-rotation structure for hub nut of heavy-duty vehicle Download PDFInfo
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- CN215370556U CN215370556U CN202122131153.8U CN202122131153U CN215370556U CN 215370556 U CN215370556 U CN 215370556U CN 202122131153 U CN202122131153 U CN 202122131153U CN 215370556 U CN215370556 U CN 215370556U
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- hub nut
- locking plate
- gear ring
- locking
- ring support
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Abstract
The utility model provides an anti-rotation structure of a heavy-duty automobile hub nut, which comprises a gear ring bracket, a hub nut, a half-shaft sleeve and a locking plate, wherein the gear ring bracket is fixedly connected with the hub nut; the beneficial technical effects of the utility model are as follows: compared with the prior art, the anti-loosening structure of the heavy-duty automobile hub nut is arranged between the gear ring support and the hub nut, does not relate to a threaded area between the axle shaft sleeve and the hub nut, and can effectively guarantee the threaded connection strength of the axle shaft sleeve and the hub nut while guaranteeing the looseness prevention of the hub nut.
Description
Technical Field
The utility model relates to a wheel hub nut anti-rotation technology, in particular to an anti-rotation structure of a wheel hub nut of a heavy vehicle.
Background
Take doublestage drive axle of ring gear support, in order to prevent that the hub nut is rotatory not hard up in the use, set up anti-rotating structure usually on axle sleeve and hub nut, common anti-rotating structure has two kinds:
1) as shown in fig. 7 and 8, a locking groove is formed in the end face of the half-shaft sleeve, an annular groove is formed in the inner end face of the hub nut, an internal thread matched with the thread section of the outer end of the half-shaft sleeve is arranged in the annular groove, meanwhile, a flat hole (the flat hole radially penetrates through the annular groove, and a structural body outside the flat hole on the hub nut forms a thin edge) is formed in the side wall of the hub nut, and a locking threaded hole (the locking threaded hole axially penetrates through the hub nut and is communicated with the flat hole and the annular groove) is formed in the end face of the hub nut; during installation, firstly, a hub nut is screwed on the threaded section of the half-shaft sleeve, then a locking bolt is arranged in a locking threaded hole, a thin edge on the hub nut is gradually extruded and deformed along with the screwing of the locking bolt, an internal thread of the hub nut is also deformed along with the deformation and is in close contact with the thread of the threaded section of the half-shaft sleeve, the thread friction between the hub nut and the half-shaft sleeve is enhanced, meanwhile, the inner end of the locking bolt also extends into a locking groove on the end face of the half-shaft sleeve, and the rotation prevention of the hub nut is realized through the blocking effect of the locking bolt and the locking groove;
2) as shown in fig. 9 and 10, the outer wall of the outer end of the half-axle sleeve is provided with a lock groove, when the half-axle sleeve is installed, an annular locking plate is sleeved outside the half-axle sleeve, the inner hole wall of the annular locking plate is provided with a boss which is clamped in the lock groove, the outer end face of the annular locking plate is provided with a connecting bulge extending outwards, then the hub nut is screwed on the half-axle sleeve, then the connecting bulge is fixed with the hub nut (welding or bolt connection can be adopted), and the hub nut is prevented from rotating by the blocking action of the lock groove and the boss;
for the first anti-loosening structure, the groove-shaped structure exists on the hub nut, the integrity of the hub nut thread can be damaged, meanwhile, the lock groove can also damage the integrity of the semi-shaft sleeve external thread, so that the thread connection strength is reduced, and for the second anti-loosening structure, the lock groove can damage the integrity of the semi-shaft sleeve external thread; in addition, two kinds of anti-loosening structure need process the screw thread region when processing, produce the burr (especially first anti-loosening structure, its hub nut structure is complicated) easily during processing, and are required highly to process.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the background art, the utility model provides an anti-rotation structure of a hub nut of a heavy-duty automobile, which is innovative in that: the gear ring support comprises a gear ring support, a hub nut, a half-shaft sleeve and a locking plate;
the inner end face of the hub nut is provided with a convex ring, the outer peripheral surface of the hub nut is provided with a plurality of limiting grooves, and the plurality of limiting grooves are distributed along the circumferential direction of the hub nut; the limit groove axially penetrates the convex ring;
the locking plate is in a ring shape, the diameter of an inner hole of the locking plate is matched with the outer diameter of the convex ring, the thickness of the locking plate is matched with the axial length of the convex ring, a plurality of limiting bosses are arranged on the inner hole wall of the locking plate, the outlines of the limiting bosses are matched with the limiting grooves, and the limiting bosses are uniformly distributed along the circumferential direction of the locking plate; a plurality of force-discharging grooves are formed in the circumferential outer wall of the locking plate and are uniformly distributed, and a structural body between every two adjacent force-discharging grooves forms a locking plate petal;
the gear ring support is sleeved on the semi-shaft sleeve, the thread section of the outer end of the semi-shaft sleeve is exposed outside the gear ring support, the hub nut is in threaded connection with the thread section on the semi-shaft sleeve, and the inner end face of the hub nut is in contact with the outer wall of the gear ring support; a plurality of locking holes are formed in the outer wall of the gear ring support and are uniformly distributed along the circumferential direction of the gear ring support; the locking plate is sleeved on the convex ring of the hub nut, the hub nut pushes the locking plate against the outer wall of the gear ring bracket, and the plurality of limiting bosses are inserted into the plurality of limiting grooves in a one-to-one correspondence manner; the annular area formed by the plurality of locking holes partially overlaps the annular area formed by the plurality of locking plate petals; the number of the locking plate petals is larger than that of the locking holes; after the hub nut is installed in place, a part of the locking plate petals are aligned with the corresponding locking hole positions, the locking plate petals aligned with the locking hole positions are marked as riveting petals, and the riveting petals are bent inwards by a tool and are riveted into the corresponding locking holes.
The principle of the utility model is as follows: the anti-rotation structure is arranged between a gear ring support (the gear ring support is an existing structure on a two-stage driving axle) and the hub nut, so that the anti-rotation structure can be arranged without involving a threaded area, the integrity of threaded connection between the axle sleeve and the hub nut is ensured, and the threaded connection strength is improved; particularly, the locking plate is blocked inboard by the wheel hub nut, and axial displacement can not take place for the locking plate, and simultaneously, in the locking hole of riveting petal card on the locking plate on the ring gear support, circumferential displacement can not take place for locking plate and ring gear support, has again, and spacing boss on the locking plate is inserted in the spacing inslot on the wheel hub nut, and spacing boss can form the card to keep off to the circumferential displacement of wheel hub nut, finally just can prevent that the wheel hub nut is rotatory.
The beneficial technical effects of the utility model are as follows: compared with the prior art, the anti-loosening structure of the heavy-duty automobile hub nut is arranged between the gear ring support and the hub nut, does not relate to a threaded area between the axle shaft sleeve and the hub nut, and can effectively guarantee the threaded connection strength of the axle shaft sleeve and the hub nut while guaranteeing the looseness prevention of the hub nut.
Drawings
FIG. 1, the structure of the present invention, exploded;
FIG. 2 is a schematic structural view of the present invention;
enlarged structure at the riveting petal part in fig. 3 and 2;
FIG. 4 is a schematic view of the end face structure of the locking plate;
FIG. 5 is a schematic structural view of an outer end face of a hub nut;
FIG. 6 is a schematic side view of the hub nut;
FIG. 7 is a schematic diagram of the prior art;
the hub nut in fig. 8 and 7 is enlarged;
FIG. 9 is a second schematic diagram of the prior art;
FIG. 10, schematic diagram three of the prior art;
the names corresponding to each mark in the figure are respectively: the gear ring support comprises a gear ring support 1, locking holes 1-1, a hub nut 2, a limiting groove 2-1, a convex ring 2-2, a half-shaft sleeve 3, a locking groove 3-1, locking plates 4, limiting bosses 4-1, force-removing grooves 4-2, locking plate petals 4-3, locking bolts 5, a flat hole 6, connecting protrusions 7 and bosses 8.
Detailed Description
The utility model provides a heavy automobile wheel hub nut prevents changeing structure which innovation lies in: the hub gear comprises a gear ring bracket 1, a hub nut 2, a half-shaft sleeve 3 and a locking plate 4;
a convex ring 2-2 is arranged on the inner end face of the hub nut 2, a plurality of limiting grooves 2-1 are arranged on the outer peripheral face of the hub nut 2, and the plurality of limiting grooves 2-1 are distributed along the circumferential direction of the hub nut 2; the limiting groove 2-1 axially penetrates the convex ring 2-2;
the locking plate 4 is in a ring shape, the diameter of an inner hole of the locking plate 4 is matched with the outer diameter of the convex ring 2-2, the thickness of the locking plate 4 is matched with the axial length of the convex ring 2-2, a plurality of limiting bosses 4-1 are arranged on the inner hole wall of the locking plate 4, the outline of each limiting boss 4-1 is matched with the corresponding limiting groove 2-1, and the limiting bosses 4-1 are uniformly distributed along the circumferential direction of the locking plate 4; a plurality of force-discharging grooves 4-2 are formed in the circumferential outer wall of the locking plate 4, the force-discharging grooves 4-2 are uniformly distributed, and a locking plate petal 4-3 is formed by a structural body between every two adjacent force-discharging grooves 4-2;
the gear ring support 1 is sleeved on the semi-shaft sleeve 3, a threaded section at the outer end of the semi-shaft sleeve 3 is exposed outside the gear ring support 1, the hub nut 2 is in threaded connection with the threaded section on the semi-shaft sleeve 3, and the inner end face of the hub nut 2 is in contact with the outer wall of the gear ring support 1; a plurality of locking holes 1-1 are formed in the outer wall of the gear ring support 1, and the locking holes 1-1 are uniformly distributed along the circumferential direction of the gear ring support 1; the locking plate 4 is sleeved on the convex ring 2-2 of the hub nut 2, the hub nut 2 supports the locking plate 4 on the outer wall of the gear ring bracket 1, and the plurality of limiting bosses 4-1 are inserted into the plurality of limiting grooves 2-1 in a one-to-one correspondence manner; the annular area formed by the plurality of locking holes 1-1 partially overlaps the annular area formed by the plurality of locking plate petals 4-3; the number of the locking plate petals 4-3 is larger than that of the locking holes 1-1; after the hub nut 2 is installed in place, a part of locking plate petals 4-3 are aligned with the corresponding locking holes 1-1, the locking plate petals 4-3 aligned with the locking holes 1-1 are marked as riveting petals, and the riveting petals are bent inwards by a tool and are riveted into the corresponding locking holes 1-1.
It should be noted that, in the actual structure, the relative position of the hub nut 2 and the half-shaft sleeve 3 is not fixed, but the relative position of the hub nut 2 and the half-shaft sleeve 3 is adjusted according to the bearing clearance inside the gear ring support 1, so that a plurality of locking plate petals 4-3 and a plurality of locking holes 1-1 are designed, and the number of the locking plate petals 4-3 is greater than that of the locking holes 1-1, and the design can ensure that no matter which position the hub nut 2 and the locking plate 4 rotate to, some locking plate petals 4-3 can be aligned with the corresponding locking holes 1-1.
Claims (1)
1. The utility model provides a heavy automobile wheel hub nut prevents rotating-structure which characterized in that: the gear ring support comprises a gear ring support (1), a hub nut (2), a half-shaft sleeve (3) and a locking plate (4);
a convex ring (2-2) is arranged on the inner end face of the hub nut (2), a plurality of limiting grooves (2-1) are arranged on the outer peripheral face of the hub nut (2), and the limiting grooves (2-1) are distributed along the circumferential direction of the hub nut (2); the limit groove (2-1) axially penetrates through the convex ring (2-2);
the locking plate (4) is annular, the diameter of an inner hole of the locking plate (4) is matched with the outer diameter of the convex ring (2-2), the thickness of the locking plate (4) is matched with the axial length of the convex ring (2-2), a plurality of limiting bosses (4-1) are arranged on the inner hole wall of the locking plate (4), the outline of each limiting boss (4-1) is matched with the corresponding limiting groove (2-1), and the limiting bosses (4-1) are uniformly distributed along the circumferential direction of the locking plate (4); a plurality of force-discharging grooves (4-2) are formed in the circumferential outer wall of the locking plate (4), the force-discharging grooves (4-2) are uniformly distributed, and a locking plate petal (4-3) is formed by a structural body between every two adjacent force-discharging grooves (4-2);
the gear ring support (1) is sleeved on the semi-axis sleeve (3), the thread section of the outer end of the semi-axis sleeve (3) is exposed outside the gear ring support (1), the hub nut (2) is in threaded connection with the thread section on the semi-axis sleeve (3), and the inner end face of the hub nut (2) is in contact with the outer wall of the gear ring support (1); a plurality of locking holes (1-1) are formed in the outer wall of the gear ring support (1), and the locking holes (1-1) are uniformly distributed along the circumferential direction of the gear ring support (1); the locking plate (4) is sleeved on the convex ring (2-2) of the hub nut (2), the hub nut (2) supports the locking plate (4) on the outer wall of the gear ring support (1), and the limiting bosses (4-1) are inserted into the limiting grooves (2-1) in a one-to-one correspondence manner; the annular area formed by the plurality of locking holes (1-1) is partially overlapped with the annular area formed by the plurality of locking plate petals (4-3); the number of the locking plate petals (4-3) is larger than that of the locking holes (1-1); after the hub nut (2) is installed in place, a part of locking plate petals (4-3) are aligned with the corresponding locking holes (1-1), the locking plate petals (4-3) aligned with the locking holes (1-1) are marked as riveting petals, and the riveting petals are bent inwards by a tool and are riveted into the corresponding locking holes (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122131153.8U CN215370556U (en) | 2021-09-06 | 2021-09-06 | Anti-rotation structure for hub nut of heavy-duty vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122131153.8U CN215370556U (en) | 2021-09-06 | 2021-09-06 | Anti-rotation structure for hub nut of heavy-duty vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370556U true CN215370556U (en) | 2021-12-31 |
Family
ID=79619743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122131153.8U Active CN215370556U (en) | 2021-09-06 | 2021-09-06 | Anti-rotation structure for hub nut of heavy-duty vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215370556U (en) |
-
2021
- 2021-09-06 CN CN202122131153.8U patent/CN215370556U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400900 No.1, Nanhuan Avenue, Shuangqiao economic and Technological Development Zone, Dazu District, Chongqing Patentee after: SAIC Hongyan Axle (Chongqing) Co.,Ltd. Address before: 400900 No.1, Nanhuan Avenue, Shuangqiao economic and Technological Development Zone, Dazu District, Chongqing Patentee before: SAIC-IVECO HONGYAN COMMERCIAL VEHICLE CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |