CN219446649U - Shaft end structure and axle assembly of commercial vehicle - Google Patents
Shaft end structure and axle assembly of commercial vehicle Download PDFInfo
- Publication number
- CN219446649U CN219446649U CN202320519322.1U CN202320519322U CN219446649U CN 219446649 U CN219446649 U CN 219446649U CN 202320519322 U CN202320519322 U CN 202320519322U CN 219446649 U CN219446649 U CN 219446649U
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- China
- Prior art keywords
- axle
- retaining washer
- spindle head
- side wall
- nut
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses a shaft end structure of a commercial vehicle and a shaft assembly, wherein the shaft end structure of the commercial vehicle comprises a shaft, a hub, an inner bearing, an outer bearing and a lock nut assembly; the hub is arranged on the axle through an inner bearing and an outer bearing; the outer peripheral surface of the end part of the axle is provided with an external thread, and a key groove extending inwards from the outer end surface of the axle is arranged at the external thread; the locking nut assembly comprises a spindle head nut, a retaining washer and a locking piece, wherein the retaining washer is propped against the outer side end face of the inner ring of the outer bearing, the spindle head nut is in threaded connection with the external thread and is pressed on the outer side face of the retaining washer, a plurality of clamping parts which are arranged along the circumferential direction of the retaining washer are arranged on the retaining washer, the locking piece is clamped in one of the clamping parts after penetrating through the spindle head nut from outside to inside, and the retaining washer is further provided with a clamping part embedded in the key slot. The utility model can improve the adjustment precision of the hub bearing play.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a shaft end structure and an axle assembly of a commercial vehicle.
Background
The shaft end of a commercial vehicle is usually required to be provided with a lock nut assembly, the lock nut assembly plays a purpose of preventing loosening, meanwhile, through adjusting the lock nut assembly, the play of a hub bearing is accurately controlled, a hub is mounted on an axle through the hub bearing, an external thread is formed at the end part of the axle, a spindle nose nut is screwed on the external thread, a retaining washer is clamped in a key groove of the axle, and then the retaining washer is clamped with the spindle nose nut, so that the spindle nose nut is prevented from loosening. The periphery of the stop washer is provided with a clamping flange, the spindle head nut is provided with a plurality of clamping grooves which are arranged along the circumferential direction of the clamping flange, the clamping flange on the stop washer is clamped in one of the clamping grooves on the spindle head nut, the stop washer has the purpose of preventing the spindle head nut from loosening, and the clamping flange is arranged in different clamping grooves to change the position of the spindle head nut along the circumferential direction of the axle, so that the play of the hub bearing is adjusted; because the width dimension of the clamping groove is relatively large, the number of the clamping grooves arranged along the circumferential direction of the spindle head nut is limited, and the adjustment accuracy of the bearing play is low.
Disclosure of Invention
In view of the shortcomings of the prior art, an object of the present utility model is to provide a shaft end structure of a commercial vehicle, which can improve the adjustment accuracy of the hub bearing play.
The utility model provides an axle assembly.
In order to achieve the first purpose, the utility model adopts the following technical scheme:
the shaft end structure of the commercial vehicle comprises an axle, a hub, an inner bearing, an outer bearing and a lock nut assembly;
the hub is arranged on the axle through an inner bearing and an outer bearing;
the outer peripheral surface of the end part of the axle is provided with an external thread, and a key groove extending inwards from the outer end surface of the axle is arranged at the external thread;
the locking nut assembly comprises a spindle head nut, a retaining washer and a locking piece, wherein the retaining washer is propped against the outer side end face of the inner ring of the outer bearing, the spindle head nut is in threaded connection with the external thread and is pressed on the outer side face of the retaining washer, a plurality of clamping parts which are arranged along the circumferential direction of the retaining washer are arranged on the retaining washer, the locking piece is clamped in one of the clamping parts after penetrating through the spindle head nut from outside to inside, and the retaining washer is further provided with a clamping part embedded in the key slot.
The clamping part is a clamping groove arranged at the outer periphery of the anti-return gasket, the locking piece is in a rod shape, and the inner side end of the locking piece is embedded in one of the clamping grooves.
The spindle head nut is provided with a bolt hole extending from the outer end face to the inner end face, the locking piece is a screw rod screwed in the bolt hole, and the inner end of the screw rod is a polish rod part embedded in the clamping groove.
The clamping groove comprises a bottom surface, a first side wall positioned on one side of the bottom surface and a second side wall positioned on the other side of the bottom surface, and the first side wall is positioned on the left side of the second side wall when seen from the outer side surface of the anti-return gasket to the inner side surface; the extending direction of the first side wall is consistent with the radial direction of the anti-return gasket, and the second side wall gradually extends from inside to outside in an inclined way towards the direction far away from the first side wall.
The lock nut assembly includes a plurality of locking members arranged in a circumferential array about the central axis of the spindle head nut.
The clamping part is a convex boss arranged at the inner edge of the anti-return gasket, and the width of the boss is the same as that of the key groove.
In order to achieve the second purpose, the utility model adopts the following technical scheme:
the axle assembly comprises the axle end structure of the commercial vehicle.
The utility model has the beneficial effects that:
the retaining washer is provided with the clamping parts, the spindle head nut transversely penetrates through the locking piece, the inner side end of the locking piece is clamped in one of the clamping parts to prevent the spindle head nut from loosening, the retaining washer can be provided with a large number of clamping parts, and the locking piece on the retaining washer can be converted between two adjacent clamping parts after the spindle head nut rotates by a small angle, so that the angle of each adjustment of the spindle head nut is reduced, and the adjustment precision of the wheel hub bearing play can be improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the check washer of FIG. 1;
fig. 4 is an enlarged view at a in fig. 3.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description:
as shown in fig. 1, 2, 3, and 4, which are shaft end structures of a commercial vehicle according to the present utility model, the shaft end structures include an axle 10, a hub 20, an inner bearing 22, an outer bearing 21, and a lock nut assembly 30, the end of the axle 10 forms a shaft end portion having a circular cross section, and the hub 20 is mounted on the shaft end portion of the end of the axle 10 through the inner bearing 22 and the outer bearing 21 so that the hub 20 can rotate around the axle 10; an external thread 101 is provided on the outer peripheral surface of the portion of the axle 10 that passes through the external bearing 21, and a key groove 102 is provided at the external thread 101, the key groove 102 extending inward from the outer end surface of the axle 10. The lock nut assembly 30 comprises a spindle head nut 31, a stop washer 32 and a plurality of screw rods 33, wherein the stop washer is sleeved on the axle 10 and is propped against the outer end surface of the inner ring of the outer bearing 21, the spindle head nut 31 is in threaded connection with the outer thread 101 of the axle 10, the spindle head nut 31 is pressed on the outer side surface of the stop washer 32, the stop washer 32 is provided with a plurality of clamping grooves 322 which are arranged along the axial direction of the spindle head nut, the screw rods 33 are connected on the spindle head nut 31 in a penetrating way from outside to inside, and the inner end of the screw rods is clamped in one of the clamping grooves 322 after penetrating out of the inner side surface of the spindle head nut 31; in addition, a clamping portion is further disposed on the retaining washer 32, the clamping portion is disposed in the key slot 102, the clamping portion cooperates with the key slot 102 to form a first limiting assembly, the retaining washer 32 is prevented from rotating relative to the axle 10 by the first limiting assembly, and a second limiting assembly is formed by cooperation of the clamping groove 322 and the screw 33, and the second limiting assembly is used for limiting the rotational freedom degree of the spindle head nut 31.
In the above-described structure of the present utility model, the retaining washer 32 and the spindle nose nut 31 are sequentially sleeved on the axle 10 from the end of the axle 10, the spindle nose nut 31 is screwed on the external thread 101, finally, a plurality of screws 33 are threaded on the spindle nose nut 31, the inner side ends of each screw 33 are respectively placed in one clamping groove 322, the spindle nose nut 31 is prevented from rotating reversely by the cooperation of the screws 33 and the clamping grooves 322, the spindle nose nut 31 is prevented from loosening, when the play of the outer bearing 21 needs to be adjusted, the spindle nose nut 31 can be rotated, the retaining washer 32 is extruded by the spindle nose nut 31, the inner ring of the outer bearing 21 is extruded by the retaining washer 32, the play of the outer bearing 21 is adjusted in place, and then the screws 33 threaded on the spindle nose nut 31 are clamped into the corresponding clamping grooves 322.
In the above-described embodiment, the clamping groove 322 is provided on the periphery of the retaining washer 32 to clamp the inner end of the screw 33, the inner end of the screw 33 is generally required to be provided with a polish rod portion that is not threaded, the spindle head nut 31 is provided with a bolt hole 311 extending from the outer end surface to the inner end surface, the screw 33 is screwed into the bolt hole 311, and the polish rod portion is inserted into the clamping groove 322 after being penetrated from the inner end surface of the spindle head nut 31. In other embodiments, the locking groove 322 may have other structures capable of locking the inner end of the screw 33, that is, a plurality of locking portions may be provided on the retaining washer 32 for locking the screw 33. The screw 33 is used for locking the spindle head nut 31 and the retaining washer 32, and may be replaced by other locking members, and the locking members may preferably have a rod-shaped structure, for example, the locking members may be pins penetrating the spindle head nut 31, and the locking members may cooperate with the clamping portions, so that a limiting structure for limiting the relative rotation of the spindle head nut 31 and the retaining washer 32 can be formed.
In the utility model, as the clamping parts are arranged on the retaining washer, the spindle head nut transversely passes through the locking piece, the inner side end of the locking piece is clamped in one of the clamping parts to prevent the spindle head nut from loosening, the retaining washer can be provided with a plurality of clamping parts, and the locking piece on the retaining washer can be converted between two adjacent clamping parts after the spindle head nut rotates by a small angle, so that the angle of each adjustment of the spindle head nut is reduced, and the adjustment precision of the wheel hub bearing clearance can be improved.
In the preferred embodiment, the engagement of the locking groove 322 with the screw 33 is configured in a unidirectional rotation-stopping configuration, that is, in the screwing direction of the spindle head nut 31, as long as a sufficient rotation torque is applied to the spindle head nut 31, the spindle head nut 31 can drive the screw 33 to disengage from the locking groove 322, and in the unscrewing direction of the spindle head nut 31, the locking groove 322 can completely prevent the screw 33 from rotating along with the spindle head nut 31, so as to avoid the screw 33 from disengaging from the locking groove 322; specifically, the clamping groove 322 includes a bottom surface 3223, a first side wall 3221 and a second side wall 3222, the first side wall 3221 is located at one side of the bottom surface 3223, the second side wall 3222 is located at the other side of the bottom surface 3223, wherein, when the outer side surface of the anti-return washer 32 is seen from the inward direction, the first side wall 3221 is located at the left side of the second side wall 3222, that is, the second side wall 3222 is located at the rear side of the first side wall 3221 in the clockwise direction, the extending direction of the first side wall 3221 is consistent with the radial direction of the anti-return washer 32, the second side wall 3222 is obliquely extended from inside to outside in a direction away from the first side wall, referring to fig. 3 and 4, when the spindle nose nut 31 is screwed, the spindle nose nut 31 is rotated clockwise, then drives the screw 33 to rotate, the screw 33 is pressed against the second side wall 3222, and the angle between the screw 33 and the circumferential tangent line of the anti-return washer 32 is relatively small due to the fact that the second side wall is obliquely arranged, so that the screw 33 can stride from the second side wall 3222 into the next clamping groove 322 arranged in the clockwise direction; conversely, when the spindle head nut 31 is rotated counterclockwise, the screw 33 is prevented from being separated from the catching groove 322 due to the blocking of the first side wall 3221, thereby preventing the spindle head nut 31 from being loosened after the counterclockwise rotation; in the above-mentioned structure, the second side wall 3222 and the first side wall 3221, which are adjacent to each other, of the two adjacent clamping grooves 322 form a ratchet, so that the screw 33 and the clamping grooves 322 form a unidirectional rotation structure, thereby facilitating the rotation of the spindle nose nut 31 in the clockwise direction to accurately adjust the play of the outer bearing.
In the present utility model, a plurality of locking members such as the screw 33 may be provided to the spindle head nut 31, and of course, only one locking member may be provided to the spindle head nut 31.
The boss 321 protruding from the engagement portion is provided on the inner edge of the retaining washer 32, and the width of the boss 321 is the same as the width of the key groove 102, so that the boss 321 is engaged in the key groove 102 to prevent the retaining washer 32 from loosening from the axle 10.
The axle assembly of the present utility model includes the axle end structure of the commercial vehicle described above, and other structures of the axle assembly are the same as those of the prior art and will not be described in detail herein.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model in essence.
Claims (7)
1. The shaft end structure of the commercial vehicle is characterized by comprising an axle, a hub, an inner bearing, an outer bearing and a lock nut assembly;
the hub is arranged on the axle through an inner bearing and an outer bearing;
the outer peripheral surface of the end part of the axle is provided with an external thread, and a key groove extending inwards from the outer end surface of the axle is arranged at the external thread;
the locking nut assembly comprises a spindle head nut, a retaining washer and a locking piece, wherein the retaining washer is propped against the outer side end face of the inner ring of the outer bearing, the spindle head nut is in threaded connection with the external thread and is pressed on the outer side face of the retaining washer, a plurality of clamping parts which are arranged along the circumferential direction of the retaining washer are arranged on the retaining washer, the locking piece is clamped in one of the clamping parts after penetrating through the spindle head nut from outside to inside, and the retaining washer is further provided with a clamping part embedded in the key slot.
2. The shaft end structure of a commercial vehicle according to claim 1, wherein the detent portion is a detent provided at an outer peripheral edge of the retaining washer, the locking member is rod-shaped and an inner end thereof is embedded in one of the detents.
3. The shaft end structure of a commercial vehicle according to claim 2, wherein the spindle head nut is provided with a bolt hole extending from an outer end surface to an inner end surface thereof, the locking member is a screw threaded in the bolt hole, and an inner end of the screw is a polish rod portion embedded in the clip groove.
4. The axle end structure of a commercial vehicle as set forth in claim 3, wherein the card slot includes a bottom surface, a first side wall located on one side of the bottom surface, a second side wall located on the other side of the bottom surface, the first side wall being located on the left side of the second side wall as viewed in a direction from the outer side of the check washer toward the inner side; the extending direction of the first side wall is consistent with the radial direction of the anti-return gasket, and the second side wall gradually extends from inside to outside in an inclined way towards the direction far away from the first side wall.
5. The axle stub structure of claim 1, wherein the lock nut assembly comprises a plurality of locking members arranged in a circumferential array about the central axis of the spindle nose nut.
6. The axle end structure of a commercial vehicle according to claim 1, wherein the engagement portion is a convex boss provided at an inner edge of the anti-back-out washer, and a width of the boss is the same as a width of the key groove.
7. Axle assembly, characterized in that it comprises an axle end structure of a commercial vehicle according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320519322.1U CN219446649U (en) | 2023-03-17 | 2023-03-17 | Shaft end structure and axle assembly of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320519322.1U CN219446649U (en) | 2023-03-17 | 2023-03-17 | Shaft end structure and axle assembly of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219446649U true CN219446649U (en) | 2023-08-01 |
Family
ID=87386287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320519322.1U Active CN219446649U (en) | 2023-03-17 | 2023-03-17 | Shaft end structure and axle assembly of commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219446649U (en) |
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2023
- 2023-03-17 CN CN202320519322.1U patent/CN219446649U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |