CN214492398U

CN214492398U - Lightweight disc type braking independent suspension wheel edge assembly

Info

Publication number: CN214492398U
Application number: CN202120387747.2U
Authority: CN
Inventors: 高云; 周湘林; 周乐; 孔冬泉; 唐建
Original assignee: Chongqing Dajiang Axle Co ltd
Current assignee: Chongqing Dajiang Axle Co ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-10-26
Anticipated expiration: 2031-02-22

Abstract

The utility model relates to a lightweight disc braking independent suspension wheel side assembly, which comprises a steering knuckle and a half shaft, wherein the right end part of the half shaft is communicated with a needle bearing and matched with the wheel hub, the wheel hub is sleeved on the outer circular surface of the hollow shaft head, a brake disc is matched and connected on the wheel hub, and a planetary reducer assembly is connected at the left end of the wheel hub; the planetary reducer assembly comprises a gear ring component and a planetary frame, wherein a sun gear is arranged at the center of an accommodating cavity formed by matching the planetary frame and the gear ring component, and at least three planetary gears are arranged between the sun gear and the gear ring component; an end cover is fixedly connected to the left side of the planetary frame, a bearing seat is arranged on the inner side of the end cover, and a ball bearing is arranged on the bearing seat; the left end of the half shaft is matched with the sun gear and is connected with the ball bearing in a matching mode. The utility model discloses compact structure can alleviate self weight, satisfies whole car lightweight demand, improves fuel efficiency, reduces the vehicle consumption.

Description

Lightweight disc type braking independent suspension wheel edge assembly

Technical Field

The utility model relates to a vehicle chassis, concretely relates to lightweight disc brake independent suspension wheel limit assembly, especially 5 tons of level lightweight disc brake independent suspension wheel limit assemblies.

Background

The vehicle transmits power from an engine to a main speed reducer of a rear axle through a transmission, and then the power is transmitted to a wheel-side assembly (wheel-side speed reducer internal gearbox) and wheels from an output end of the main speed reducer so as to drive the vehicle to move forwards or backwards. In the process, the wheel side assembly mainly has the function of transmitting the rotating speed and the torque transmitted by the main speed reducer to the wheels after speed reduction and torque increase, so that the transmission efficiency is improved, and the wheels can generate larger driving force under the reaction of the ground adhesion. Thereby reducing the stress of each part in front of the wheel edge assembly.

CN203543527U discloses a "wheel-side assembly of steering drive axle of automobile", which includes: the device comprises a hub assembly, a duplex universal joint shaft, a shaft head, a steering knuckle, an upper main pin, a lower main pin, a brake caliper, a brake disc, a sun wheel and a planet wheel; the wheel hub assembly includes: the hub, the hub reducing shell, the end cover and the planet carrier; the steering knuckle is connected with the shaft fork through an upper main pin and a lower main pin, a duplex universal joint shaft is supported in inner cavities of the steering knuckle and the shaft fork through a needle bearing, a sun wheel and a planet wheel are respectively arranged on a planet carrier, the sun wheel is connected with the duplex universal joint shaft through a spline, a brake caliper is connected with the steering knuckle through a bolt, and a brake disc is connected with a hub through a bolt; in order to improve the strength, increase the transmission ratio and be convenient for maintenance, the knuckle and the spindle nose are cast into one piece, the hub and the hub reducing shell are cast into one piece, the planet carrier and the end cover are cast into one piece, and the end cover is connected with the hub through a bolt. The technical scheme is particularly suitable for vehicles with large carrying capacity. The hub and the planet frame in the wheel edge assembly of the vehicle are generally made of cast steel and cast iron so as to ensure enough strength, but the mass of the whole vehicle is larger, so that the fuel efficiency is reduced, the energy conservation and emission reduction are not facilitated, and the low-carbon life is influenced. However, for a vehicle with a load of 5 tons, the reduction of the weight of the wheel edge assembly is an objective requirement, and has a wider application prospect.

Disclosure of Invention

The utility model aims at providing a lightweight disc braking independent suspension wheel limit assembly, its compact structure, convenient to install and dismantle can alleviate self weight, improves fuel efficiency, reduces the vehicle consumption, is favorable to energy saving and emission reduction and realizes low carbon life.

A lightweight disc braking independent suspension wheel limit assembly, including knuckle, one end with the centre bore fixed connection's of knuckle hollow spindle nose, pass hollow spindle nose and right-hand member with knuckle fixed connection's semi-axis, the right-hand member portion of semi-axis lead to bearing with hollow spindle nose cooperation still includes to establish through many sets of roller bearing cover wheel hub, cooperation on the outer disc of hollow spindle nose are connected in epaxial brake disc of wheel hub, connection the planetary reducer assembly of wheel hub left end, characterized by:

the planetary reducer assembly comprises a gear ring component and a planetary frame, wherein the inner circle of the planetary frame is matched with the outer circle of the gear ring component, a sun gear is arranged at the center of an accommodating cavity formed by matching the planetary frame and the gear ring component, and at least three planetary gears are arranged between the sun gear and the gear ring component; an end cover is fixedly connected to the left side of the planetary frame, a bearing seat is arranged in the center of the inner side of the end cover, and a ball bearing is arranged on the bearing seat; the left end of the half shaft is matched with the sun gear and is connected with the ball bearing in a matching mode.

Further, wheel hub's material is the aluminum alloy, and it is connected through first roller bearing and the cooperation of second roller bearing the middle part of hollow spindle nose still be equipped with oil gas seal and oil blanket between hollow spindle nose and the wheel hub the edge short distance of wheel hub left end is equipped with a plurality of threaded fastener.

Furthermore, the brake disc is made of aluminum alloy, the outer circumferential edge of the brake disc is provided with a plurality of lightening holes, and the inner circumference of the brake disc is provided with an induction gear ring.

Furthermore, the material of the planet frame of the planetary reducer assembly is aluminum alloy.

Furthermore, a plurality of bolt holes are formed in the flange plate at the right end of the planetary frame of the planetary reducer assembly in a short distance, and the plurality of through holes in the left end of the hub correspond to one another and are fastened through bolts.

Further, a sensor support is arranged on the hub and corresponds to an induction gear ring arranged on the inner circumference of the brake disc.

Compared with the prior art, the utility model have following advantage: the wheel hub and the planet frame made of aluminum alloy have the advantages of light weight, high manufacturing precision, high strength and the like, statistics shows that the whole automobile mass is reduced by 10%, and the weight of a wheel edge assembly with 5-tonnage level is reduced by about 30%, so that the power consumption of the automobile is reduced, and the automobile is suitable for being equipped with light and medium-sized high-speed motor vehicles. In addition, the hub and the planet frame made of the aluminum alloy have important significance for energy conservation, emission reduction and low-carbon life, and can meet the requirements of vehicles with special requirements, so that the hub and the planet frame have wider application prospects.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1 (not shown in section);

FIG. 3 is a schematic view of the structure of the wheel hub and the brake disc of the present invention;

fig. 4 is a schematic structural view of the planetary frame of the present invention.

In the figure:

1-knuckle, 11-upper taper pin hole, 12-lower taper pin hole;

2, mounting a plate;

3-hollow shaft head;

4-half shaft, 41-needle bearing, 42-ball bearing;

5-hub, 51-first roller bearing, 52-second roller bearing, 53-threaded fastener, 54-oil seal, 55-oil seal;

6-brake disc, 61-lightening hole, 62-induction gear ring;

7-a ring gear member;

8-planet frame, 81-sun gear, 82-planet gear, 83-bearing seat, 84-bolt hole, 85-plug screw;

9-end cover;

10-sensor holder.

Detailed Description

Referring to fig. 1 to 4, the lightweight disc brake independent suspension wheel-side assembly includes a knuckle 1 connected to a mounting plate 2 by a bolt, a hollow spindle nose 3 having one end fixedly connected to a center hole of the knuckle, a half shaft 4 passing through the hollow spindle nose and having a right end fixedly connected to the knuckle, a right end of the half shaft 4 being fitted to the hollow spindle nose 3 by a needle bearing 41, a hub 5 fitted to an outer circumferential surface of the hollow spindle nose 3 by a plurality of sets of roller bearings, a brake disc 6 fitted to the hub 5, and a planetary reducer assembly connected to a left end of the hub, and is characterized in that:

the planetary reducer assembly comprises a gear ring component 7 and a planetary frame 8, wherein the inner circle of the planetary frame 8 is matched with the outer circle of the gear ring component, a sun gear 81 is arranged at the center of an accommodating cavity formed by matching the planetary frame 8 and the gear ring component 7, and at least three planetary gears 82 are arranged between the sun gear 81 and the gear ring component 7; an end cover 9 is fixedly connected to the left side of the planetary frame 8, a bearing seat 83 is arranged at the center part of the inner side of the end cover 9, and a ball bearing 42 is arranged on the bearing seat 83; the left end of the half shaft 4 is fitted with the sun gear 81 and is connected with the ball bearing 42.

The wheel hub 5 is made of aluminum alloy and is connected to the middle of the hollow shaft head 3 through a first roller bearing 51 and a second roller bearing 52 in a matching mode, an oil-gas seal 54 and an oil seal 55 are further arranged between the hollow shaft head 3 and the wheel hub 5, and a plurality of threaded fasteners 53 are arranged on the edge of the left end of the wheel hub 5 at equal intervals. The wheel hub is made of aluminum alloy, and compared with the wheel hub made of nodular cast iron, the wheel hub is obviously lighter in weight.

The brake disc 6 is made of aluminum alloy, the outer circumferential edge of the brake disc is provided with a plurality of lightening holes 61, and the inner circumference of the brake disc is provided with an induction gear ring 62. The brake disc is made of aluminum alloy and is provided with a plurality of lightening holes so as to lighten the weight.

The material of the planet frame 8 of the planetary reducer assembly is aluminum alloy. The aluminum alloy planetary frame with the same volume is lighter 2/3 than the nodular cast iron planetary frame, so that the power consumption of the vehicle is reduced.

A plurality of bolt holes 84 are formed in the flange plate at the right end of the planetary frame 8 of the planetary reducer assembly in a short distance, and the plurality of through holes in the left end of the hub 5 correspond to one another and are connected and fastened through bolts. A bolt plug 85 for replacing the lubricating oil is provided at the lower portion of the planetary frame 8.

A sensor carrier 10 is provided on the wheel hub 5, which sensor carrier 10 corresponds to an induction ring gear 62 provided on the inner circumference of the brake disk 6.

The knuckle 1 is connected and fixed with an upper ball pin and a lower ball pin of the frame through an upper taper pin hole 11 and a lower taper pin hole 12 of the knuckle, and the upper end of the knuckle is provided with a mounting bracket connected with a steering arm of the frame.

Claims

1. The utility model provides a lightweight disk braking independent suspension wheel limit assembly, including knuckle (1), one end with the hollow spindle nose (3) of the centre bore fixed connection of knuckle, pass hollow spindle nose and right-hand member with knuckle fixed connection's semi-axis (4), the right-hand member portion of semi-axis (4) lead to needle bearing (41) with hollow spindle nose (3) cooperation still includes and establishes through many sets of roller bearing cover wheel hub (5), cooperation on the outer disc of hollow spindle nose (3) are connected brake disc (6) on wheel hub (5), connection the planetary reducer assembly of wheel hub left end, characterized by:

the planetary reducer assembly comprises a gear ring component (7) and a planetary frame (8) of which the inner circle is matched with the outer circle of the gear ring component, a sun gear (81) is arranged at the center of an accommodating cavity formed by matching the planetary frame (8) and the gear ring component (7), and at least three planetary gears (82) are arranged between the sun gear (81) and the gear ring component (7); an end cover (9) is fixedly connected to the left side of the planetary frame (8), a bearing seat (83) is arranged at the center part of the inner side of the end cover (9), and a ball bearing (42) is arranged on the bearing seat (83); the left end part of the half shaft (4) is matched with the sun gear (81) and is connected with the ball bearing (42) in a matching way.

2. The light-weight disc brake independent suspension wheel-side assembly of claim 1, wherein: the material of wheel hub (5) is the aluminum alloy, and it is connected through first roller bearing (51) and second roller bearing (52) cooperation the middle part of hollow spindle nose (3) still be equipped with oil gas seal (54) and oil blanket (55) between hollow spindle nose (3) and wheel hub (5) the edge short distance of wheel hub (5) left end is equipped with a plurality of threaded fastener (53).

3. The light-weight disc brake independent suspension wheel-rim assembly of claim 1 or 2, characterized in that: the brake disc (6) is made of aluminum alloy, the outer circumferential edge of the brake disc is provided with a plurality of lightening holes (61), and the inner circumference of the brake disc is provided with an induction gear ring (62).

4. The light-weight disc brake independent suspension wheel-rim assembly of claim 1 or 2, characterized in that: the material of the planet frame (8) of the planetary reducer assembly is aluminum alloy.

5. The light-weight disc brake independent suspension wheel-rim assembly of claim 1 or 2, characterized in that: the short distance is equipped with a plurality of bolt holes (84) on the ring flange of planet frame (8) right-hand member of planetary reducer assembly, it is a plurality of via hole one-to-one on wheel hub (5) the left end to fasten through bolted connection.

6. The light-weight disc brake independent suspension wheel-side assembly of claim 3, wherein: a sensor carrier (10) is arranged on the wheel hub (5), the sensor carrier (10) corresponding to an induction toothing (62) arranged on the inner circumference of the brake disk (6).