CN217455668U

CN217455668U - Mounting structure of hub reduction gear

Info

Publication number: CN217455668U
Application number: CN202220508379.7U
Authority: CN
Inventors: 丁晓文; 朱亚伟; 邹红军; 汪翰明; 杨春艳
Original assignee: Chery Commercial Vehicle Anhui Co Ltd
Current assignee: Chery Commercial Vehicle Anhui Co Ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-09-20
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a mounting structure of hub reduction gear, including wheel hub, rim and central nut, wheel hub's center is provided with the boss, and the center of rim is pegged graft with the boss, encloses to locate outside wheel hub, and the boss is inserted from the outside of rim to central nut, and with boss fixed connection, the place with fixed rim and wheel hub. The utility model discloses use on four motor wheel limit driven vehicles, because wheel limit space limit, so adopt the mode of boss and central nut to fix, not only easy to assemble and dismantlement have also reduced weight relatively.

Description

Mounting structure of hub reduction gear

Technical Field

The utility model relates to a wheel reduction gear technical field specifically is wheel reduction gear's mounting structure.

Background

In the field of vehicles, the mounting structure of a wheel reduction gear can realize the effects of reducing speed and increasing torque, and because the vehicle provided with the mounting structure of the wheel reduction gear does not need a gearbox and a main reducer, the chassis is simpler, so that the height of the chassis of an automobile can be increased, and the trafficability of the automobile under the cross-country condition is better relatively.

The wheel reduction gear mounting structure in the existing vehicle type has the situation that the size is large and related parts interfere in the design, so the layout optimization of the wheel reduction gear mounting structure is an important subject.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mounting structure of hub reduction gear to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: wheel reduction's mounting structure, including wheel hub, rim and central nut, wheel hub's center is provided with the boss, and the center of rim is pegged graft with the boss, encloses to locate outside the wheel hub, and central nut inserts the boss from the outside of rim, and with boss fixed connection, the institute with fixed rim and wheel hub.

Preferably, the end face of the hub is provided with a protruding limiting body, and the cylinder is used for being inserted into a limiting groove of the rim inner ring.

Preferably, the limiting body and the limiting groove are both of a cylindrical structure.

Preferably, the outer end edge of the central nut is provided with an open slot, and a circle of fixing holes are formed in the position, opposite to the open slot, of the hub.

Preferably, the planetary gear set comprises a frame, and the frame is fixedly connected with the hub.

Preferably, the gearbox comprises a speed reducer shell arranged around the periphery of the planetary gear set, a connecting plate is fixedly mounted at the end part of one side, away from the hub, of the shell, a motor is fixedly mounted on the connecting plate, and an output shaft of the motor is connected with the input end of the planetary gear set.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses use on four motor wheel limit driven vehicles, because wheel limit space limit, so adopt the mode of boss and central nut to fix, not only easy to assemble and dismantlement have also reduced weight relatively.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the wheel hub of the present invention;

fig. 3 is a schematic structural view of the central nut of the present invention.

Detailed Description

In order to facilitate the use, the embodiment of the utility model provides a wheel reduction gear's mounting structure. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the examples of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The present embodiment provides a mounting structure of a hub reduction gear, for convenience of understanding, the following figures are mainly referred to, as shown in the figures, and include a hub 4, a rim (not shown in the figure), and a central nut 5, wherein a boss is provided at the center of the hub 4, the center of the rim is inserted into the boss and is enclosed outside the hub 4, and the central nut 5 is inserted into the boss from the outer side of the rim and is fixedly connected with the boss, thereby fixing the rim and the hub 4.

A circle of cylindrical grooves are formed in the rim and matched with the protruding cylinders 41 on the hub 4, the cylindrical grooves are equivalent to stud connection, inward pretightening force is applied to the central nut 5, and the rim is tightly attached to the hub. The outer edge of the central nut 5 is provided with a circle of grooves, and a circle of small holes are formed in the positions corresponding to the wheel hubs, so that the nuts can be prevented from loosening through threading.

The planetary gear set comprises a sun gear, a planet gear, a rack 7 and an inner gear ring which are meshed with each other, and three duplex planetary gears are meshed with the sun gear and the inner gear ring simultaneously based on the specific arrangement of the gear set, wherein the sun gear serves as an input, and the rack 7 serves as an output.

The frame is fixedly connected with the hub and directly fixed by bolts, and the conception of the device is that the hub and the frame are combined into a whole to shorten the transverse size and ensure the compactness of the structure.

The speed reducer is characterized by further comprising a speed reducer shell 1, wherein the speed reducer shell 1 is arranged around the outer edges of the rack 7 and the hub 4 and passes through a bearing and an oil seal 3 and the hub 4. The frame 7 is connected to ensure the normal rotation of the hub 4.

Referring to fig. 1, a connection plate 6 is provided at an end of a reduction gear case 1, and the connection plate 6 and the reduction gear case 1 are fixed by bolts. And a sealing ring 61 is embedded at the joint of the connecting plate 6 and the reducer shell 1.

The connecting plate 6 is used for fixedly mounting a motor (fixed by bolts) and the output shaft of the motor is in driving connection with the sun gear, so that the coaxiality of the motor and the speed reducer is effectively guaranteed and the transverse length of the whole system is shortened.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Wheel reduction gear's mounting structure, its characterized in that: including wheel hub, rim and central nut, wheel hub's center is provided with the boss, and the center of rim is pegged graft with the boss, encloses to locate outside the wheel hub, and central nut inserts the boss from the outside of rim, and with boss fixed connection, thereby fixed rim and wheel hub.

2. The wheel hub reduction gear mounting structure according to claim 1, characterized in that: the end face of the hub is provided with a protruding limiting body, and the cylinder is used for being connected with a limiting groove of the rim inner ring in an inserting mode.

3. The wheel hub reduction gear mounting structure according to claim 2, characterized in that: the limiting body and the limiting groove are both of cylindrical structures.

4. A wheel hub reduction gear mounting structure according to claim 3, characterized in that: an open slot is arranged at the edge of the outer end of the central nut, and a circle of fixing holes are arranged at the position, opposite to the open slot, on the hub.

5. The wheel hub reduction gear mounting structure according to claim 1, characterized in that: the planetary gear set comprises a rack which is fixedly connected with the hub.

6. The wheel hub reduction gear mounting structure according to claim 5, characterized in that: the speed reducer is characterized by further comprising a speed reducer shell arranged on the periphery of the planetary gear set in a surrounding mode, a connecting plate is fixedly mounted at the end, far away from one side of the hub, of the shell, a motor is fixedly mounted on the connecting plate, and an output shaft of the motor is connected with the input end of the planetary gear set.