CN215284361U - Steering drive axle, intelligent rail electric car and electric motor coach - Google Patents

Abstract

The utility model discloses a steering drive axle, including axle, wheel hub, stator frame, stator winding and a plurality of permanent magnet, the axle both ends all are connected with the knuckle through the connecting pin, wheel hub pass through the wheel hub bearing install in on the knuckle, the stator frame install in on the knuckle, the stator winding install in the stator frame, it is a plurality of the permanent magnet along the circumferencial direction arrange in wheel hub is last, and is located the periphery of stator winding. The steering drive axle has the advantages of compact structure, high integration of the motor and the wheel hub, high transmission efficiency and the like. The utility model further discloses an intelligent rail trolley bus including above-mentioned steering drive axle can realize nimble marshalling, and full round drive turns to all rounds. The utility model further discloses an [ electric ] motor coach including above-mentioned steering drive axle can realize the all round drive, and the all round turns to, and turning radius is little, and operating stability is high.

Description

Steering drive axle, intelligent rail electric car and electric motor coach

Technical Field

The utility model relates to an automotive filed especially relates to a steering drive axle, intelligent rail trolley and [ electric ] motor coach.

Background

The intelligent rail electric vehicle is a novel urban rail vehicle with multi-section marshalling, full-axle steering, medium and large transportation capacity and low floor, and along with the expansion of intelligent rail application scenes and the continuous development of user requirements, the requirements on the optimization of the dynamic performance and the expansion of marshalling of the intelligent rail electric vehicle are more and more urgent. The existing platform of the smart rail electric car is in a three-section marshalling mode, a six-shaft full-steering mode and a 12 multiplied by 4 driving mode (namely, 12 wheels are arranged in total, and power is arranged on wheels of wheel shafts at the front end and the rear end), and the driving wheel is abraded quickly due to a power centralized driving mode and has the problem of insufficient power if marshalling needs to be added (the operation amount is increased) on the basis of the existing platform. At present, the electric motor coach basically adopts a 4 × 2 driving mode (namely, 4 wheels are total, and power is arranged on two wheels of a rear shaft), is difficult to realize low floor penetration, has the problems of too narrow channel width and the like, and is blank in the technical application of improving the vehicle operation stability in all-wheel driving and all-wheel steering.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide one kind can compact structure, motor, wheel hub height integration, the steering drive axle that transmission efficiency is high.

The utility model further provides a can realize nimble marshalling, all round drive, the intelligent rail trolley-bus that all rounds turned to.

The utility model discloses further provide a can realize all round drive, the all round turns to, and turning radius is little, the [ electric ] motor coach that operating stability is high.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a steering drive axle, includes axle, wheel hub, stator frame, stator winding and a plurality of permanent magnet, the axle both ends all are connected with the knuckle through the connecting pin, wheel hub pass through the wheel hub bearing install in on the knuckle, the stator frame install in on the knuckle, the stator winding install in the stator frame is last, and is a plurality of the permanent magnet along the circumferencial direction arrange in wheel hub is last, and is located the periphery of stator winding.

As a further improvement of the above technical solution:

the steering device is characterized by further comprising a steering pull rod, wherein steering knuckle arms are arranged on the two steering knuckles, two ends of the steering pull rod are hinged to the two steering knuckle arms in a one-to-one correspondence mode, a telescopic driving piece is hinged to the axle, and the telescopic driving piece is hinged to one of the steering knuckle arms.

The brake device is characterized in that a brake disc is installed on the hub, a brake support is installed on the steering knuckle, a brake caliper is installed on the brake support, and the brake caliper is provided with a brake chamber.

And a cooling liquid pipe and a cable are arranged on the stator frame, and a gap for the cooling liquid pipe and the cable to pass is formed between the steering knuckle and the brake disc.

The hub is provided with a transition plate, and a heat insulation plate is arranged between the transition plate and the brake disc.

A first sealing ring is arranged between the hub and the steering knuckle, and a second sealing ring is arranged between the transition plate and the stator frame.

The brake disc is a ventilated brake disc.

The middle part of the axle is concave.

An intelligent rail electric vehicle comprises a plurality of sections of marshalling, wherein the steering drive axle is adopted in each section of marshalling.

The electric motor coach comprises a coach body, wherein the front end and the rear end of the coach body are respectively provided with the steering drive axle.

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

the utility model discloses a steering drive axle includes axle, wheel hub, stator frame, stator winding and a plurality of permanent magnet, the axle both ends all are connected with the knuckle through the connecting pin, then the knuckle can the axle relatively rotate, wheel hub pass through the wheel hub bearing install in on the knuckle, the stator frame mount in on the knuckle, the stator winding install in the stator frame, it is a plurality of the permanent magnet along the circumferencial direction arrange in wheel hub is last, and is located stator winding's periphery forms external rotor electric machine, external rotor electric machine can produce big torque, inertia is big, the operation is stable under the low-speed, the utility model discloses with wheel hub, the high integration of motor, compact structure, transmission efficiency is high.

The utility model discloses an intelligent rail trolley bus, including the multisection marshalling, the multisection marshalling all adopts foretell steering drive axle, therefore possess above-mentioned advantage equally, and can realize nimble marshalling, all round drive, all round turns to.

The utility model discloses an electric motor coach, including automobile body and foretell steering drive axle, therefore have the above-mentioned advantage that turns to the drive axle equally, and can realize the all-wheel drive, the all-wheel turns to, and turning radius is little, and the operating stability is good.

Furthermore, the low floor can be completely communicated, so that the width of a channel is increased, the transportation capacity is increased to a certain extent, and passengers can get on and off conveniently.

Drawings

Fig. 1 is a front view of the steering drive axle of the present invention.

Fig. 2 is a plan view of the steering drive axle of the present invention.

Fig. 3 is a front view of the hub motor of the present invention.

Fig. 4 is a plan view of the in-wheel motor of the present invention.

Fig. 5 is a schematic structural diagram of the middle steering mechanism of the present invention.

The reference numerals in the figures denote:

1. an axle; 2. a hub; 3. a stator frame; 4. a stator winding; 5. a permanent magnet; 6. a connecting pin; 7. a knuckle; 8. A hub bearing; 9. a steering tie rod; 10. a knuckle arm; 11. a telescopic driving member; 12. a brake disc; 13. a brake bracket; 14. A brake caliper; 15. a brake chamber; 16. a coolant tube; 17. a transition plate; 18. a heat insulation plate; 19. a first seal ring; 20. A second seal ring; 21. and (4) end covers.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments.

As shown in fig. 1 to 5, the steer-drive axle of this embodiment includes an axle 1, a hub 2, a stator frame 3, a stator winding 4 and a plurality of permanent magnets 5, the two ends of the axle 1 are connected with a knuckle 7 through a connecting pin 6, the hub 2 is mounted on the knuckle 7 through a hub bearing 8, the stator frame 3 is mounted on the knuckle 7, the stator winding 4 is mounted on the stator frame 3, and the plurality of permanent magnets 5 are arranged on the hub 2 along a circumferential direction and located at the periphery of the stator winding 4.

The steering drive axle comprises an axle 1, a hub 2, a stator frame 3, a stator winding 4 and a plurality of permanent magnets 5, wherein two ends of the axle 1 are connected with a steering knuckle 7 through connecting pins 6, the steering knuckle 7 can rotate relative to the axle 1, the hub 2 is arranged on the steering knuckle 7 through a hub bearing 8, the stator frame 3 is arranged on the steering knuckle 7, the stator winding 4 is arranged on the stator frame 3, the permanent magnets 5 are arranged on the hub 2 along the circumferential direction and are located on the periphery of the stator winding 4 to form an outer rotor motor, and the outer rotor motor can generate large torque at low speed, is large in rotational inertia, is stable in operation and has a certain electric braking function. The steering drive axle has the advantages of high integration of the wheel hub and the motor, compact structure and high transmission efficiency.

In this embodiment, the vehicle further includes a steering rod 9, the two steering knuckles 7 are both provided with knuckle arms 10, two ends of the steering rod 9 are hinged to the two knuckle arms 10 in a one-to-one correspondence manner, the vehicle axle 1 is hinged to a telescopic driving member 11, and the telescopic driving member 11 is hinged to one of the knuckle arms 10. The telescopic driving member 11 can drive the knuckle arm 10 to swing left and right through telescoping, and further push the knuckle 7 and the hub 2 mounted on the knuckle 7 to rotate integrally to achieve steering.

In this embodiment, a brake disc 12 is mounted on the hub 2, a brake bracket 13 is mounted on the knuckle 7, a brake caliper 14 is mounted on the brake bracket 13, and the brake caliper 14 is provided with a brake chamber 15, so that the hub 2 can be decelerated or stopped by an external air source.

In this embodiment, the stator frame 3 is provided with a cooling liquid pipe 16 and a cable for cooling the motor, and a gap for the cooling liquid pipe 16 and the cable to pass through is formed between the knuckle 7 and the brake disc 12, so that the occupied space is small.

In this embodiment, the transition plate 17 is arranged on the hub 2, the position of the hub 2 close to the brake disc 12 is hollow, the transition plate 17 is arranged to provide an installation foundation for the brake disc 12, and the heat insulation plate 18 is arranged between the transition plate 17 and the brake disc 12, so that the transmission of braking heat energy is reduced, and the service lives of the transition plate 17 and the hub 2 are prolonged.

In this embodiment, a first seal ring 19 is disposed between the hub 2 and the knuckle 7, and cooperates with an end cover 21 to ensure the sealing performance of the hub structure, and a second seal ring 20 is disposed between the transition plate 17 and the stator frame 3 to ensure the sealing performance of the motor.

In this embodiment, the brake disc 12 is a ventilated brake disc, which has high braking stability and fast heat dissipation, and simultaneously has driving and parking braking.

In this embodiment, the middle of the axle 1 is recessed. When being used for smart rail trolley bus or [ electric ] motor coach, can realize smart rail trolley bus or [ electric ] motor coach etc. low floor and link up entirely, increase the passageway width, promote the freight volume to a certain extent, also make things convenient for the passenger to get on or off.

As shown in fig. 1 to 5, the intelligent rail electric vehicle comprises a multi-section marshalling, and the steering drive axle is adopted in the multi-section marshalling.

The intelligent rail electric car comprises a plurality of sections which are grouped, and the steering drive axle is adopted for the plurality of sections, so that the intelligent rail electric car also has the advantages, can realize flexible grouping, all-wheel drive and all-wheel steering, can realize full through of a low floor, increases the width of a channel, increases the transportation capacity to a certain extent, and is convenient for passengers to get on and off.

As shown in fig. 1 to 5, an electric motor coach comprises a coach body, wherein the steering drive axle is adopted at the front end and the rear end of the coach body.

This [ electric ] motor coach, including automobile body and foretell steering drive axle, therefore have above-mentioned steering drive axle's advantage equally, and can realize the all-wheel drive, the all-wheel turns to, and turning radius is little, and operating stability is good, can realize that the low floor link up completely for the passageway width increases, increases the freight volume to a certain extent, conveniently gets on or off the passenger.

It should be noted that although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A steer-drive axle, comprising: including axle (1), wheel hub (2), stator frame (3), stator winding (4) and a plurality of permanent magnet (5), axle (1) both ends all are connected with knuckle (7) through connecting pin (6), wheel hub (2) through wheel hub bearing (8) install in on knuckle (7), stator frame (3) install in on knuckle (7), stator winding (4) install in on stator frame (3), it is a plurality of permanent magnet (5) along the circumferencial direction arrange in on wheel hub (2), and be located the periphery of stator winding (4).

2. The steer-drive axle of claim 1, wherein: still include steering linkage (9), two all be equipped with knuckle arm (10) on knuckle (7), steering linkage (9) both ends and two knuckle arm (10) one-to-one is articulated, it has flexible driving piece (11) to articulate on axle (1), flexible driving piece (11) and one of them knuckle arm (10) are articulated.

3. The steer-drive axle of claim 1, wherein: the brake disc (12) is installed on the wheel hub (2), the brake support (13) is installed on the steering knuckle (7), the brake caliper (14) is installed on the brake support (13), and the brake caliper (14) is provided with a brake chamber (15).

4. The steer-drive axle of claim 3, wherein: a cooling liquid pipe (16) and a cable are arranged on the stator frame (3), and a gap for the cooling liquid pipe (16) and the cable to pass is formed between the steering knuckle (7) and the brake disc (12).

5. The steer-drive axle of claim 3, wherein: the brake is characterized in that a transition plate (17) is arranged on the hub (2), and a heat insulation plate (18) is arranged between the transition plate (17) and the brake disc (12).

6. The steer-drive axle of claim 5, wherein: a first sealing ring (19) is arranged between the hub (2) and the steering knuckle (7), and a second sealing ring (20) is arranged between the transition plate (17) and the stator frame (3).

7. The steer-drive axle of claim 3, wherein: the brake disc (12) is a ventilated brake disc.

8. The steer-drive axle according to any one of claims 1 to 7, wherein: the middle part of the axle (1) is concave.

9. An intelligent rail electric car, includes multisection marshalling, its characterized in that: a plurality of said groupings each employing a steer-drive axle as defined in any one of claims 1 to 8.

10. The utility model provides an electric motor coach, includes the automobile body, its characterized in that: the steering drive axle of any one of claims 1 to 8 is adopted at both the front end and the rear end of the vehicle body.

Images