CN108032864B

CN108032864B - Longitudinally-driven axle box built-in bogie

Info

Publication number: CN108032864B
Application number: CN201711373084.3A
Authority: CN
Inventors: 肖梯; 贺世忠; 陈喜红; 陶功安; 王志明; 张文涛; 刘晖霞; 魏宏图
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2017-12-19
Filing date: 2017-12-19
Publication date: 2020-03-24
Anticipated expiration: 2037-12-19
Also published as: CN108032864A

Abstract

A longitudinally driven axle box built-in bogie comprises a framework (3) and an axle box (12), wherein the framework is formed by connecting two side beams (20) and first and second cross beams (23 and 26), the framework and the axle box are arranged on the inner side of a wheel (1), a traction motor (13) is respectively installed on the two side beams through a motor hanging seat (21), the output shafts of the two traction motors are perpendicular to an axle (2), the output shafts of the two traction motors are connected with the axle through a coupling (16) and a gear box (17), and the two traction motors are positioned between the first and second cross beams (23 and 26); only one shaft disc brake disc (18) is arranged on each axle and is matched with a brake clamp (9) on the framework; the first cross beam is provided with a traction seat (22), the first cross beam is fixedly connected with one end of a traction pull rod through the traction seat (22), and the other end of the traction pull rod is fixed on the vehicle body.

Description

Longitudinally-driven axle box built-in bogie

Technical Field

The invention relates to a railway locomotive bogie, in particular to a longitudinally driven axle box built-in bogie.

Background

At present, there are three main ways of arranging non-pantograph current collectors used by rail vehicles in the world, namely an upper grinding type, a lower grinding type and a side contact type. The end face of the rail head of the contact rail with a side contact type faces towards the walking rail, the contact shoe presses the contact rail from the side, the contact shoe is also called side current collection, and the contact shoe is applied to London subway in England, Milan subway in Italy and light rail lines in Malaysia. A lateral current-receiving circuit is adopted, the installation position of a contact rail is higher than the rail surface, the lower limit of a vehicle is extruded, and the traditional bogie with an external axle box cannot meet the requirement of the limit. The bogie with the built-in axle box can be suitable for the extremely small limit due to the characteristic that the axle box of the bogie is arranged on the inner side of the wheel and occupies a small space.

However, since the axle box is installed inside the wheel, the space in the middle of the bogie is small, the conventional transverse arrangement of the motor is limited by the area, a large-radius axle disc brake device cannot be installed, the brake caliper can only be installed at the end of the bogie under severe vibration conditions, and the weight of the bogie is greatly increased when the wheel disc brake or tread brake device is installed, so that higher light weight level is difficult to achieve. Although the bogie adopting the scheme of longitudinally arranging the motor can arrange the shaft disc brake device, the motor is arranged in the middle of the bogie, so that a traction pull rod is difficult to arrange. In order to meet the requirements of light weight and high running performance of modern rail transit, the development of a longitudinally driven axle box built-in bogie without a swing bolster and adopting a shaft disc braking mode is urgently needed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a longitudinally driven axle box built-in bogie which is provided with motors arranged longitudinally and adopts a shaft disc braking mode and is light in weight without a swing bolster.

In order to solve the technical problems, the invention adopts the technical scheme that: a longitudinally driven axle box built-in bogie comprises a framework, the front end and the rear end of which are respectively provided with an axle, the two ends of two axles are respectively provided with wheels, the framework is arranged on the axles through axle boxes, and the frame and the axle box are arranged on the inner side of the wheel, the frame comprises two side beams which are arranged in parallel, the middle parts of the two side beams are provided with a first cross beam and a second cross beam in parallel, the frame and the axle box are arranged on the inner side of the wheel, a traction motor is respectively arranged on the two side beams through a motor hanging seat, two traction motors are positioned between the first cross beam and the second cross beam, one sides of the two traction motors are respectively arranged on the side beams of the framework through motor hanging seats, the other sides of the two traction motors are connected into a whole, output shafts of the two traction motors are vertical to the axle, and simultaneously, the output shafts of the two traction motors are connected with an axle through a coupling and a gear box arranged on the side beam.

In the scheme, only one shaft disc brake disc is arranged on one axle, and the shaft disc brake disc is matched with the brake clamp on the framework, so that the brake capacity is ensured, the number and the weight of the brake device are reduced, the unsprung mass is reduced compared with a wheel disc brake mode, and the impact on a line is reduced.

In the scheme, the first cross beam is provided with the traction seat, the first cross beam is directly and fixedly connected with one end of the traction pull rod through the traction seat, and the other end of the traction pull rod is fixedly connected with the vehicle body, so that a swing bolster is omitted, the quality of the bogie is greatly reduced, and the maintenance item and the difficulty of the bogie are simplified.

In the scheme, one sides of the two traction motors are connected into a whole through bolts, the other sides of the two traction motors are arranged at the bottoms of the side beams and are connected with the side beams of the framework into a whole through bolt and nut structures, and the axial direction of the bolts is perpendicular to the ground. The vehicle body does not need to be lifted when the motor is disassembled, the motor can directly fall down from the bogie only by disassembling the fastener at the lower part of the side beam, and the equipment requirement and the operation difficulty of motor disassembly and assembly are greatly simplified.

In the above scheme, the axle box is connected to the frame through a primary suspension device, and the frame is provided with a secondary suspension device, a transverse stopper, a current collector, an anti-roll device and the brake clamp.

In the scheme, the gear box hanging seat is arranged on the framework side beam, one side of the gear box is fixedly connected with the framework side beam through the gear box hanging seat, one end of the gear box is connected with the output shaft of the traction motor through the coupler, and the other end of the gear box is fixedly connected with the axle. The first cross beam and the second cross beam are respectively provided with a gear box drop-proof seat, and the gear box is arranged on the gear box hanging seat and the gear box drop-proof seat, so that the gear box is more firmly and reliably arranged.

In the scheme, the axle box is internally integrated with the grounding device or the speed measuring gear, and the axle box is provided with the turning wheel process hole, so that equipment is not arranged at the axle end of the axle, and the stabilizer bar is not required to be arranged on the framework for connecting and stabilizing the axle end equipment, thereby avoiding the risk of fracture of the stabilizer bar caused by the wheel pair under the very severe vibration condition.

Compared with the prior art, the invention has the advantages that:

1. the axle box and the frame side beams are arranged on the inner sides of the wheel pairs, so that the whole transverse size of the bogie is reduced, the bogie can be suitable for the limitation of the lower part of a vehicle with lateral flow, the motor is longitudinally arranged (namely, an output shaft of a traction motor is vertical to an axle) in the middle of the bogie, and under the condition that the transverse space on the inner side of the frame is limited, the longitudinal space is fully utilized, the available space of the motor is increased, and the power and the traction performance of the motor are improved. The structure that the motor is arranged longitudinally has still released the longitudinal space of the shaft disc brake disc, has increased the size of shaft disc brake disc under the unchangeable circumstances of wheel base, has increased the braking radius of braking clamp, has improved braking capability under the circumstances of equal clamp force, therefore can set up only one shaft disc brake unit on every wheel pair, has reduced arresting gear's quantity and weight, and has compared in the wheel disc braking form and has reduced unsprung mass, has reduced the impact to the circuit. Furthermore, the brake caliper can be mounted on a beam with better vibration conditions.

2. The axle box is arranged on the inner side of the wheel pair, so that the torsional rigidity of the bogie is reduced, and the curve passing capacity is improved.

3. The bogie is of a structure without a swing bolster, and is directly provided with the single traction pull rod for transmission, so that the quality of the bogie is greatly reduced, and the maintenance peak and the maintenance difficulty of the bogie are also simplified.

4. The invention utilizes the characteristic that the distance between the first cross beam and the second cross beam is larger to integrate the traction seat on the first cross beam, uses the long traction pull rod to adapt to the height change of the vehicle body and avoid the traction motor in the middle part, simultaneously greatly reduces the height of a traction point and improves the adhesion utilization rate during traction.

Drawings

Fig. 1 is a front view of an in-axle box power bogie of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a front view of the frame structure of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a structural view of the power wheel pair of the invention.

The reference numbers in the figures illustrate:

1. a wheel; 2. an axle; 3. a frame; 4. a current collector; 5. a fender; 6. an anti-roll device; 7. a secondary suspension device; 8. a vertical shock absorber; 9. braking the clamp; 10. a primary suspension device; 11. transverse stopping; 12. an axle box; 13. a traction motor; 14. a traction pull rod; 15. a transverse damper; 16. a coupling; 17. a gear case; 18. a shaft disc brake disc; 19. a spring fastening seat; 20. a side beam; 21. a motor hanging seat; 22. a traction seat; 23. a first cross member; 24. a gearbox hanging seat; 25. a brake clamp mounting seat; 26. a second cross member; 27. the gear box is prevented from falling and is seated; 28. a grounding device copper ring; 29. a grounding device; 30. a speed measuring gear; 31. an axle box end cap; 32. turning a wheel fabrication hole of the axle box; 33. the wheel set is turned into a wheel fabrication hole.

Detailed Description

As shown in fig. 1 to 5, an embodiment of the longitudinally driven bogie built in the axlebox of the present invention includes a frame 3 mounted on two axles 2, wheels 1 mounted on the axles 2 outside the frame 3, and axleboxes 12 mounted on the insides of the wheels 1 at both ends of the axles 2, such that the frame 3 and the axleboxes 12 are disposed on the insides of the wheels 1.

The frame 3 is formed by connecting two side members 20 and first and

second cross members

23, 26. The two frame side beams 20 are provided with a gear box hanging seat 24 and a motor hanging seat 21, the first cross beam 23 is provided with a traction seat 22, and the first and second cross beams 23 and 26 are respectively provided with a gear box anti-drop seat 27 and a brake clamp mounting seat 25. Two frame side beams 20 between the first and second cross beams 23, 26 are respectively provided with a traction motor 13 through a motor hanger 21, and output shafts of the two traction motors 13 are perpendicular to the axle 2, opposite sides of the two traction motors 13 are connected into a whole through bolts, and the output shafts of the two traction motors 13 are connected with the axle through a coupling 16 and a gear box 17 connected to the side beams 20 through a gear box hanger 24, so that the two traction motors 13 are arranged in the middle of the frame 3, and torque is transmitted to the gear box 17 of AC-DC transmission through the coupling 16. Only one shaft disc brake disc 18 is arranged on each axle 2, the brake clamp mounting seats 25 on the first and second cross beams 23 and 26 are respectively provided with a brake clamp 9, and the shaft disc brake discs 18 on the two axles 2 are respectively arranged opposite to the brake clamps 9 on the first and second cross beams 23 and 26, so that the braking of the vehicle is realized. The first cross beam 23 is fixedly connected with one end of the traction pull rod 14 through the traction seat 22, and the other end of the traction pull rod 14 is fixed on a vehicle body traction seat, so that swing bolster-free transmission is realized. Each axle box 12 is connected to the frame 3 via a primary suspension device 10, and the frame 3 is further provided with a secondary suspension device 7, a lateral stopper 11, a current collector 4, an anti-roll device 6, and the like.

As can be seen from fig. 5, the two axle boxes 12 of a pair are arranged inside the wheel 1, and a disc brake disc 18 and a gear box 17 are arranged in the middle of the two axle boxes 12. The axleboxes 12 may integrate grounding means 28, 29 or tacho gears 30 and be provided with axlebox wheel tooling holes 32. The axle 2 is also provided with wheel-set wheel fabrication holes 33.

Claims

1. A longitudinally driven axle box built-in bogie comprises a framework (3) with axles (2) respectively arranged at the front end and the rear end, wheels (1) are respectively arranged at the two ends of the two axles, the framework is arranged on the axles through axle boxes (12), the framework and the axle boxes are arranged on the inner sides of the wheels (1), the framework comprises two side beams (20) which are arranged in parallel, a first cross beam and a second cross beam (23 and 26) are arranged in the middle of the two side beams in parallel, a motor hanging seat (21) is respectively arranged on the two side beams, a traction motor (13) is respectively arranged on the two motor hanging seats (21), the output shafts of the two traction motors are vertical to the axles (2), and the output shafts of the two traction motors are respectively connected with the two axles through a coupling (16) and a gear box (17); it is characterized in that the preparation method is characterized in that,

the two traction motors are positioned between the first cross beam (23) and the second cross beam (26), one sides of the two traction motors are connected with the motor hanging seat, and the other sides of the two traction motors are connected into a whole;

only one axle disc brake disc (18) is arranged on each axle and is matched with a brake clamp (9) on the framework for installation;

the first cross beam is provided with a traction seat (22), the first cross beam is fixedly connected with one end of a traction pull rod (14) through the traction seat (22), and the other end of the traction pull rod is fixedly connected with the vehicle body.

2. The longitudinally driven bogie according to claim 1, wherein the two traction motors are bolted together on one side and mounted on motor hangers on the side frame members on the other side by fasteners.

3. The longitudinally driven bogie according to claim 2, wherein the other side of the two traction motors is disposed at the bottom of the side beams and connected to the side beams of the frame by bolts and nuts, and the axial direction of the bolts is perpendicular to the ground.

4. A longitudinally driven inboxed bogie according to claim 1 wherein the axlebox is connected to the frame by a primary suspension (10) and the frame is fitted with a secondary suspension (7), a lateral stop (11), a current collector (4), an anti roll device (6) and the brake caliper (9).

5. A longitudinally driven in-box bogie according to claim 1, wherein the frame side beams are provided with gear box hangers (24), one side of the gear box (17) is fixedly connected with the frame side beams through the gear box hangers, one end of the gear box is connected with the output shaft of the traction motor through a coupling, and the other end of the gear box is fixedly connected with the axle.

6. The longitudinally driven bogie according to claim 5, wherein the first and second cross members are provided with gear box anti-drop seats (27), respectively, on which the gear boxes are mounted.

7. A longitudinally driven pedestal bogie according to claim 1 in which grounding means (28, 29) or tacho gears (30) are integrated in the pedestal and pedestal-turning process holes (32) are provided in the pedestal.