CN210830104U - Nut locking structure of hub reduction gear - Google Patents
Nut locking structure of hub reduction gear Download PDFInfo
- Publication number
- CN210830104U CN210830104U CN201920911349.9U CN201920911349U CN210830104U CN 210830104 U CN210830104 U CN 210830104U CN 201920911349 U CN201920911349 U CN 201920911349U CN 210830104 U CN210830104 U CN 210830104U
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- locking
- nut
- locking plate
- gear ring
- reduction gear
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Abstract
The utility model relates to a wheel reduction gear's nut locking structure comprises lock nut, countersunk screw, spindle nose, locking plate, ring gear support, planet carrier and tapered roller bearing. The utility model discloses wheel reduction gear's nut locking structure through adopting countersunk screw, fixes the locking plate on the ring gear support, has shortened the distance of countersunk screw end and planet carrier. Thereby replaced hexagonal flange face bolt construction, cancelled the recess of ring gear support terminal surface, promoted the intensity of ring gear support, practiced thrift the processing cost of recess.
Description
Technical Field
The utility model belongs to the technical field of the car axle, concretely relates to wheel reduction gear's nut locking structure is applied to wheel reduction gear assembly.
Background
In the domestic automobile axle, a hub locking nut of the hub reduction gear is locked by a locking plate, and the locking plate is connected with a gear ring support by a hexagon flange face bolt. Because the hexagon head axial dimension of the bolt is larger, in order to avoid the interference of the hexagon head and the planet carrier, a groove is processed on the gear ring bracket so as to reduce the axial dimension of the mounting surface of the locking plate. However, the use of the groove structure reduces the strength of the ring gear carrier and increases the processing cost of the groove.
Disclosure of Invention
The utility model discloses an in solving current car wheel limit speed reduction axle, in order to reduce the axial installation distance of hexagonal flange face bolt to avoid hexagonal head and planet carrier to interfere, at the terminal surface processing recess of ring gear support, and the intensity of the ring gear support that leads to reduces, and the processing cost of ring gear support increases the scheduling problem, provides a wheel limit reduction gear's nut locking structure, promotes the reliability, reduce cost.
The utility model aims at realizing through the following technical scheme:
a nut locking structure of a hub reduction gear is composed of a locking nut 1, a countersunk screw 2, a shaft head 3, a locking plate 4, a gear ring bracket 5, a planet carrier 6 and a tapered roller bearing 7.
The spline shaft of the shaft head 3 is arranged in the spline hole of the gear ring bracket 5, and the end surface of the spline shaft is attached to the tapered roller bearing 7; the threaded hole of the locking nut 1 is screwed into the thread diameter of the shaft head 3 and is screwed tightly, and the end surface is attached to the gear ring bracket 5; two round holes of the locking plate 4 are aligned with two threaded holes of the gear ring bracket 5, and a convex tooth of the locking plate 4 is arranged in a radial groove of the locking nut 1; the countersunk head screw 2 passes through a round hole of the locking plate 4 and is screwed into a threaded hole of the gear ring bracket 5, and a conical shaft of the countersunk head screw 2 is matched with a conical hole of the locking plate 4; this arrangement ensures that the end of the grub screw 2 is at a reasonable distance from the planet carrier 6.
Furthermore, the locking plate 4 is formed by punching a steel plate, and is in threaded connection with the gear ring bracket 5 by adopting two round holes; one end of the round hole adopts a taper hole structure and is matched with the taper diameter of the countersunk head screw 2; and a convex tooth structure is adopted to be matched with the radial groove of the locking nut 1.
The end face of the gear ring bracket 5 adopts a structure with two threaded holes and is in threaded connection with the locking plate 4; the groove structure is cancelled on the matching end surface of the gear ring bracket 5 and the locking plate 4.
The locking nut 1 adopts a uniformly distributed groove structure in the radial direction and is connected with the convex teeth of the locking plate 4.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses wheel reduction gear's nut locking structure through adopting countersunk screw, fixes the locking plate on the ring gear support, has shortened the distance of countersunk screw end and planet carrier. Thereby replaced hexagonal flange face bolt construction, cancelled the recess of ring gear support terminal surface, promoted the intensity of ring gear support, practiced thrift the processing cost of recess.
Drawings
Fig. 1a is a front view of a wheel reduction assembly to which a nut locking structure of a wheel reduction device according to the present invention is applied;
fig. 1b is a partial view of a nut locking structure of a wheel reduction gear according to the present invention applied to a wheel reduction gear assembly;
fig. 2a is a front view of a locking plate of a nut locking structure of a wheel reduction gear according to the present invention;
fig. 2b is a cross-sectional view of a locking plate of a nut locking structure of a wheel reduction gear according to the present invention;
fig. 3a is a sectional view of a gear ring bracket of a nut locking structure of a wheel reduction gear according to the present invention;
fig. 3b is a side view of a gear ring bracket of a nut locking structure of a wheel reduction gear according to the present invention;
fig. 4a is a cross-sectional view of a lock nut of a nut locking structure of a wheel reduction gear according to the present invention;
fig. 4b is a side view of the lock nut of the nut locking structure of the wheel reduction gear of the present invention.
In the figure, 1, a locking nut 2, a countersunk screw 3, a shaft head 4, a locking plate 5, a gear ring bracket 6, a planet carrier 7 and a tapered roller bearing are arranged.
Detailed Description
The invention is further elucidated with reference to the drawing.
As shown in fig. 1a-1b, in the nut locking structure of the wheel reduction gear of the present invention, the spline shaft of the spindle head 3 is fitted into the spline hole of the gear ring bracket 5, and the end surface is attached to the tapered roller bearing 7; the threaded hole of the locking nut 1 is screwed into the thread diameter of the shaft head 3 and is screwed tightly, and the end surface is attached to the gear ring bracket 5; two round holes of the locking plate 4 are aligned with two threaded holes of the gear ring bracket 5, and a convex tooth of the locking plate 4 is arranged in a radial groove of the locking nut; the countersunk head screw 2 passes through a round hole of the locking plate 4 and is screwed into a threaded hole of the gear ring bracket 5, and a conical shaft of the countersunk head screw 2 is matched with a conical hole of the locking plate 4; this arrangement ensures that the end of the grub screw 2 is at a reasonable distance from the planet carrier 6.
As shown in fig. 2a-2b, the novel locking plate is formed by punching a steel plate, and is screwed with the gear ring bracket 5 by adopting two round holes; one end of the round hole is in a taper hole structure and is matched with the taper diameter of the countersunk head screw; and a convex tooth structure is adopted to be matched with the radial groove of the locking nut.
As shown in fig. 3a-3b, the end surface of the novel gear ring bracket 5 adopts a structure with two threaded holes, and is in threaded connection with the locking plate 4; the groove structure is cancelled on the matching end surface of the gear ring bracket 5 and the locking plate 4.
As shown in fig. 4a-4b, the lock nut 1 is connected with the convex teeth of the locking plate 4 by adopting a uniformly distributed groove structure in the radial direction.
Claims (3)
1. The utility model provides a hub reduction gear's nut locking structure which characterized in that: the locking device is composed of a locking nut (1), a countersunk screw (2), a shaft head (3), a locking plate (4), a gear ring bracket (5), a planet carrier (6) and a tapered roller bearing (7);
the spline shaft of the shaft head (3) is arranged in the spline hole of the gear ring bracket (5), and the end surface of the gear ring bracket is attached to the tapered roller bearing (7); the locking nut (1) is in threaded connection with the shaft head (3), and the end face of the locking nut is attached to the gear ring support (5); two round holes of the locking plate (4) are aligned with two threaded holes of the gear ring bracket (5), and a convex tooth of the locking plate (4) is matched with a radial groove of the locking nut (1); the countersunk head screw (2) penetrates through the round hole of the locking plate (4) to be in threaded connection with the gear ring bracket (5), and the conical shaft of the countersunk head screw (2) is matched with the conical hole of the locking plate (4).
2. The nut lock structure of a wheel hub reduction gear according to claim 1, characterized in that: the locking plate (4) is formed by stamping a steel plate.
3. The nut lock structure of a wheel hub reduction gear according to claim 1, characterized in that: the locking nut (1) adopts a uniformly distributed groove structure in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920911349.9U CN210830104U (en) | 2019-06-18 | 2019-06-18 | Nut locking structure of hub reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920911349.9U CN210830104U (en) | 2019-06-18 | 2019-06-18 | Nut locking structure of hub reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210830104U true CN210830104U (en) | 2020-06-23 |
Family
ID=71259079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920911349.9U Active CN210830104U (en) | 2019-06-18 | 2019-06-18 | Nut locking structure of hub reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210830104U (en) |
-
2019
- 2019-06-18 CN CN201920911349.9U patent/CN210830104U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |