阅读说明：本技术 轨道轮对装置 (Track wheel pair device ) 是由 吴明涛 倪付峰 杨英 王贺鹏 于 2021-08-19 设计创作，主要内容包括：本发明提供一种轨道轮对系统,其由第一轨道轮对装置、第二轨道轮对装置组成,其间通过联轴器传递动力或阻力矩；第二轨道轮对装置其后与同步装置连接；所有装置均紧固于基础平台上,并可沿其平移。每组轨道轮对装置均由轨道轮、轴、轴箱、法兰、弹性联轴器和安装底架等组成。与现有转向架试验台相比,试验样本量大,结构刚性大,不仅能够满足不同轴重、轴距、定距的四轴或六轴常规的转向架性能试验,还可用于转向架各部件的加载耐久、高速跑合验证试验。(The invention provides a track wheel set system, which consists of a first track wheel set device and a second track wheel set device, wherein power or resistance torque is transmitted between the first track wheel set device and the second track wheel set device through a coupler; the rear part of the second track wheel set device is connected with the synchronizing device; all devices are secured to the base platform and are translatable therealong. Each group of track wheel pair devices consists of track wheels, shafts, axle boxes, flanges, elastic couplings, mounting underframe and the like. Compared with the existing bogie test bed, the test sample has large quantity and large structural rigidity, can meet the performance test of four-axis or six-axis conventional bogies with different axle weights, axle distances and distances, and can also be used for the loading endurance and high-speed running-in verification test of each part of the bogie.)

1. A railway wheelset assembly, comprising: the track wheel set device comprises a first track wheel set device (1) and a second track wheel set device (3), wherein the first track wheel set device (1) and the second track wheel set device (3) are connected through a coupler (2); the second track wheel pair device (3) is connected with the synchronizing device (4); the first track wheel set device (1) and the second track wheel set device (3) are arranged on a basic platform (5) and can move along the basic platform (5);

the first track wheel set device (1), the second track wheel set device (3) and the synchronizing devices (4) are all provided with a plurality of synchronizing devices (4), the plurality of synchronizing devices (4) are connected with one another, and the synchronizing devices (4) are used for synchronously rotating all shafts of the bogie.

2. A track wheelset assembly according to claim 1, characterized in that a pair of bevel gears is provided in the synchronising device (4), one bevel gear being adapted to be connected to the second track wheelset assembly (3) and the other bevel gear being connected to the adjacent synchronising device (4).

3. A railway wheelset assembly according to claim 1, characterized in that the first railway wheelset assembly (1) comprises railway wheels (6), an axle box (7), an elastic coupling (8), an upper chassis (9), a first lower chassis (10) and a swivel pin (11); the track wheel (6) is in interference fit with the shaft (12), and the upper chassis (9) and the first lower chassis (10) can rotate around the rotary pin shaft (11).

4. A track wheelset assembly according to claim 1, characterized in that the second track wheelset assembly (3) comprises track wheels (6) to simulate two infinite length rails, axle boxes (7), resilient couplings (8), an upper chassis (9), a second lower chassis (22), swivel pins (11), etc.; wherein the rail wheel (6) is in interference fit with the shaft (12), the upper chassis (9) and the lower chassis (22) can rotate around the rotary pin shaft (11), and the other end of the second lower chassis (22) is provided with the synchronizer (4).

5. The railway wheelset assembly according to claim 1, wherein the first railway wheelset assembly (1) and the second railway wheelset assembly (3) each comprise two axle boxes (7), each axle box (7) comprises an axle box body (7.1) of a U-shaped structure, a cylindrical roller bearing (13), a four-point contact ball bearing (17), a corner plate (19), an outer spacer ring (15), an inner spacer ring (16), a bearing end cover (18), a bearing cover (20), a sealing ring (14) and a positioning ring (21), and the axle box bodies (7.1) and the outer spacer ring (15) are provided with oil injection holes and oil discharge holes.

6. A rail wheel set traction brake test method, characterized in that the rail wheel set device of claim 1 is used, and the method comprises the following steps:

s1, placing a first group of bogies on a first track wheelset device (1), placing a second group of bogies on a second track wheelset device (3), and starting the first group of bogies;

s2, rotating the track wheel of the first track wheel pair device (1) and driving the track wheel of the second track wheel pair device (3) to rotate through the coupler (2);

s3, driving a second group of bogies by the rail wheels of the second rail wheel set device (3);

and S4, keeping the traction motor of the second group of bogies in a power generation braking state.

7. The method for testing the traction braking of the railway wheel set according to claim 6, further comprising the following steps:

and S5, enabling the second group of bogies to be in a traction state, and keeping the traction motors of the first group of bogies in a power generation braking state.

Technical Field

The invention relates to the field of locomotive bogie test devices, in particular to a track wheel set device.

Background

In recent years, high-power electric locomotives and high-speed rails in China are developed rapidly, and compared with the traditional railway locomotive vehicles, the safety and reliability of the high-power electric locomotives and the high-speed rails are more important due to the fact that the axle weight and the operation speed are greatly improved. Various types of finished vehicles and bogie test beds are put into use successively, are mainly used for the performance and delivery tests of the finished vehicles and the bogies, have low use frequency and are all single-vehicle or single-bogie test beds. In order to meet the requirements of large axle weight and high-speed operation, particularly for the durable running-in test of the bogie and key components thereof, the sample size of one-time test is increased, the utilization rate of a test bed is increased, and a track wheel pair system capable of simultaneously testing two whole vehicles or four bogies is developed.

Disclosure of Invention

The invention provides a track wheel set device to solve the problems.

A railway wheelset assembly comprising: the device comprises a first track wheelset device and a second track wheelset device, wherein the first track wheelset device and the second track wheelset device are connected through a coupler; the second track wheel set device is connected with the synchronizing device; the first track wheel set device and the second track wheel set device are arranged on the basic platform and can move along the basic platform;

the first track wheel set device, the second track wheel set device and the synchronizing devices are all provided with a plurality of synchronizing devices, the plurality of synchronizing devices are connected with one another, and the synchronizing devices are used for synchronously rotating all shafts of the bogie.

Furthermore, a pair of bevel gears is arranged in the synchronizing device, one bevel gear is used for being connected with the second track wheel pair device, and the other bevel gear is connected with the adjacent synchronizing device.

Further, the first track wheel pair device comprises track wheels, an axle box, an elastic coupling, an upper chassis, a first lower chassis and a rotary pin shaft; wherein the rail wheel and the shaft are in interference fit, and the upper underframe and the first lower underframe can rotate around the rotary pin shaft.

Furthermore, the second track wheel pair device comprises track wheels for simulating two infinite length steel rails, an axle box, an elastic coupling, an upper underframe, a second lower underframe, a rotary pin shaft and other components; the track wheel and the shaft are in interference fit, the upper underframe and the lower underframe can rotate around the rotary pin shaft, and the other end of the second lower underframe is provided with the synchronizer.

Furthermore, the first track wheel set device and the second track wheel set device respectively comprise two axle boxes, each axle box comprises an axle box body of a U-shaped structure, a cylindrical roller bearing, a four-point contact ball bearing, an angle plate, an outer spacer ring, an inner spacer ring, a bearing end cover, a bearing cover, a sealing ring and a positioning ring, and the axle box body and the outer spacer ring are provided with an oil filling hole channel and an oil discharging hole channel.

A rail wheel set traction braking test method comprises the following steps:

s1, placing the first group of bogies on the first track wheelset device, placing the second group of bogies on the second track wheelset device, and starting the first group of bogies;

s2, rotating the track wheels of the first track wheel pair device, and driving the track wheels of the second track wheel pair device to rotate through a coupler;

s3, driving a second group of bogies by a rail wheel of a second rail wheel pair device;

and S4, keeping the traction motor of the second group of bogies in a power generation braking state.

Further, still include:

and S5, enabling the second group of bogies to be in a traction state, and keeping the traction motors of the first group of bogies in a power generation braking state.

By adopting the technical scheme, compared with the existing bogie test bed, the test sample amount is large, the structural rigidity is high, the test bed can meet the performance test of four-axis or six-axis conventional bogies with different axle weights, axle distances and distances, and can also be used for the loading endurance and high-speed running-in verification test of each part of the bogie.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic plan view of the track wheel set system of the present invention.

Fig. 2 is a front view schematically illustrating the structure of the track wheel pair system in the invention.

Fig. 3 is a schematic top view of the track wheel set system structure of the present invention.

Fig. 4 is a front view of the structure of the first railway wheelset in the invention.

Fig. 5 is a side view of the structure of the first railway wheelset in the invention.

FIG. 6 is a schematic view of an axle box structure according to the present invention.

Fig. 7 is a schematic structural diagram of a second railway wheelset in the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the track wheel-set system is composed of a first track wheel-set device 1 and a second track wheel-set device 3, and is arranged in a parallel one-to-one correspondence manner, and power or resistance torque is transmitted between the first track wheel-set device and the second track wheel-set device through a coupler 2; the second track wheel set device 3 is connected with the synchronizing device 4 at the back; all devices are fastened to the base platform 5 and can be translated along it. When the bogie drives the first track wheel set device 1 to rotate, the second track wheel set device 3 is driven through the coupler 2, and then the other bogie on the bogie is driven to rotate, at the moment, the bogie is in a braking state, and in order to enable the rotating speeds of all shafts of the bogie to be consistent, the operation is realized through the synchronizing device 4 connected with the second track wheel set device 3. On the contrary, when the bogie on the second track wheel set device 3 is in the active state, the bogie on the first track wheel set device 1 is in the braking state, so that the test working conditions with different powers are realized.

As shown in fig. 4, 5 and 7, each set of track wheel-to-wheel device is composed of track wheels 6, a shaft 12, an axle box 7, a flange, an elastic coupling 8, an upper chassis 9, a lower chassis and the like. The first track wheel pair device comprises a first lower chassis 10, the second track wheel pair device comprises a second lower chassis 22, wherein two sets of track wheel shafts 612 and axle boxes 7 are arranged, and the track wheels 6 and the axles 12 are connected by elastic couplings 8; the rail wheels 6 are used for simulating infinite length steel rails, and the rail wheels 6 are in interference connection with the shaft 12.

As shown in fig. 6, the axle box 7 is composed of a U-shaped axle box body 7.1, a cylindrical roller bearing 13, a four-point contact ball bearing 17, an angle plate 19, an outer spacer ring 15, an inner spacer ring 16, a bearing end cover 18, a bearing cover 20, a seal ring 14, a positioning ring 21 and the like, and the axle box body 7.1 and the outer spacer ring 15 are provided with an oil filling hole and an oil discharging hole. A sealed space for installing, positioning and lubricating the bearing is defined by the bearing cover 20, the sealing ring 14, the angle plate 19, the positioning ring 21, the outer spacer ring 15, the inner spacer ring 16 and the shaft box body 7.1, so that the reliable and safe work of the positioning of the bearing is ensured.

The axle box bodies 7.1 used in the axle boxes 7 are all of U-shaped structures, the track wheels 6 are arranged in U-shaped spaces of the axle box bodies 7.1, vertical loads are born by cylindrical roller bearings 13 distributed on the left side and the right side of the track wheels, and axial forces are born by four-point contact ball bearings 17 located on one sides of the track wheels. Therefore, in addition to the weight of the rail wheel axle system, each cylindrical roller bearing 13 only bears 1/4 axle weight of the tested bogie, and the service life of the bearing is greatly prolonged.

The track wheel set device is fastened on the upper underframe 9 through bolts, and a rotary pin shaft is arranged between the upper underframe 9 and the lower underframe and can rotate around the rotary pin shaft, so that the requirement of adjusting the attack angle between the bogie and the track wheel 6 is met.

The tail end of the lower chassis 22 of the second railway wheel set device 3 is provided with a device for realizing mechanical synchronization, so that the rotation speed of each shaft of the bogie is ensured to be consistent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.