阅读说明：本技术 转向架及轨道工程车辆 (Bogie and rail engineering vehicle ) 是由 肖少坤 陶亮 姜永辉 王磊 唐鹏 于欢 于 2020-08-05 设计创作，主要内容包括：本申请实施例中提供了一种转向架及轨道工程车辆,转向架包括两个轮对、构架和两个动力装置,两个轮对相对设置,轮对包括车轴和固定在车轴两侧的两个车轮；每一个轮对上设有两个轴箱,两个轴箱均设置在车轴上且位于两个车轮之间；构架包括相对设置的两个侧梁以及连接两个侧梁的横梁,侧梁垂直于车轴且连接在轴箱上；两个动力装置分别用于驱动两个轮对运动,两个动力装置相对于转向架的中心对称设置；动力装置包括牵引电机、传动机构和齿轮箱,牵引电机设置在构架上,牵引电机通过传动机构连接齿轮箱的输入端,齿轮箱的输出端连接车轴。本申请实施例有利于缩小转向架的尺寸,从而使转向架适合于运行在较小限界的轨道上。(The embodiment of the application provides a bogie and a rail engineering vehicle, wherein the bogie comprises two wheel pairs, a framework and two power devices, the two wheel pairs are oppositely arranged, and each wheel pair comprises an axle and two wheels fixed on two sides of the axle; each wheel pair is provided with two axle boxes, and the two axle boxes are arranged on the axle and positioned between the two wheels; the frame comprises two opposite side beams and a cross beam for connecting the two side beams, and the side beams are perpendicular to the axle and connected to the axle box; the two power devices are respectively used for driving the two wheel pairs to move, and are symmetrically arranged relative to the center of the bogie; the power device comprises a traction motor, a transmission mechanism and a gear box, wherein the traction motor is arranged on the framework, the traction motor is connected with the input end of the gear box through the transmission mechanism, and the output end of the gear box is connected with the axle. The embodiment of the application is beneficial to reducing the size of the bogie, so that the bogie is suitable for running on a track with smaller limit.)

1. A bogie, comprising:

the two wheel pairs are oppositely arranged and comprise an axle and two wheels fixed on two sides of the axle;

the two axle boxes are arranged on each wheel pair, and are arranged on the axle and positioned between the two wheels;

the frame comprises two oppositely arranged side beams and a cross beam for connecting the two side beams, and the side beams are perpendicular to the axle and connected to the axle box;

the two power devices are respectively used for driving the two wheel pairs to move, and are symmetrically arranged relative to the center of the bogie; the power device comprises a traction motor, a transmission mechanism and a gear box, wherein the traction motor is arranged on the framework, the traction motor is connected with the input end of the gear box through the transmission mechanism, and the output end of the gear box is connected with the axle.

2. The bogie according to claim 1, wherein the transmission mechanism comprises a reducer and an elastic coupling which are connected with each other, the traction motor is connected with the reducer, and the elastic coupling is connected with an input end of the gear box;

two speed reducer mounting seats are arranged below the cross beam, the two speed reducer mounting seats are respectively positioned at the positions, close to the side beams, of the cross beam, and the speed reducers are arranged on the speed reducer mounting seats; two side surfaces of the cross beam facing the axle are respectively provided with a gear box hanging seat, and the gear box is arranged on the gear box hanging seat;

the traction motor, the speed reducer, the elastic coupling and the gear box of the same power device are coaxially arranged and are parallel to the side beam.

3. The bogie according to claim 1, wherein the transmission mechanism comprises a right-angle reducer and a universal coupling, the traction motor is connected with the right-angle reducer, and the universal coupling is connected with an input end of the gear box;

the side of each side beam, which is far away from the cross beam, is provided with a right-angle reducer mounting seat, the right-angle damper mounting seats on the two side beams are symmetrically arranged relative to the center of the bogie, and the right-angle reducers are arranged on the right-angle reducer mounting seats; the traction motor is arranged close to the cross beam, and the gear box is fixed on the axle.

4. A bogie as claimed in claim 2 or 3 in which the cross member is welded and secured to the central portion of the side member; the transverse beam and the side beam are both box-shaped structures, and each box-shaped structure comprises an upper cover plate, a lower cover plate and a web plate, wherein the upper cover plate and the lower cover plate are arranged oppositely, and the web plate is connected with the upper cover plate and the lower cover plate.

5. The bogie according to claim 4, wherein the crossbeam is further provided with a bearing device, the bearing device comprises a core disc and a side bearing which are arranged on the upper surface of the crossbeam, the core disc is arranged in the middle of the crossbeam, and the side bearing is arranged at both ends of the crossbeam.

6. The bogie of claim 5, further comprising a suspension lockout device comprising a head axle cylinder, a topping vehicle cylinder, and a gearbox boom lockout cylinder; the top shaft oil cylinder is arranged on one side of the side beam, which is far away from the cross beam, and the top shaft oil cylinder is arranged on the axle box; the jacking oil cylinders are arranged on the cross beam and positioned on two sides of the core disc; the gearbox boom lock cylinder is disposed between the frame and the gearbox boom.

7. The bogie of claim 6, wherein the side beam is further provided with a secondary spring mounting seat, and the secondary spring mounting seats are arranged at two ends of the upper surface of the side beam; the lower surface of the side beam is provided with a series spring mounting seat, the axle box is provided with a corresponding series spring fixing seat, and the axle box is connected with the side beam through a series spring.

8. The bogie according to claim 7, wherein the side beam is further provided with a hydraulic damper mounting seat on a side facing the cross beam, the hydraulic damper mounting seats are provided on both ends of the side beam, one end of the hydraulic damper is fixed in the hydraulic damper mounting seat, and the other end of the hydraulic damper is connected with the axle box.

9. The bogie according to claim 8, further comprising a unit brake provided on one side of each of the wheels, the unit brakes being single-sided shoe tread brakes, four of the unit brakes being symmetrically disposed with respect to a center of the bogie.

10. A rail-bound work vehicle, characterized in that it comprises a body and a bogie as claimed in any one of claims 1-9, said body being arranged on said bogie.

Technical Field

The application relates to a rail vehicle manufacturing technology, in particular to a bogie and a rail engineering vehicle.

Background

The bogie is arranged between the vehicle body and the track and is one of the most important parts on the track engineering vehicle. The main functions of the bogie are as follows: the supporting vehicle body is used for bearing and transmitting various loads and acting forces from the vehicle body to wheels or from wheel tracks to the vehicle body; the safe operation of the vehicle is ensured, and the vehicle can flexibly operate along a straight line and smoothly pass through a curve; the interaction between the vehicle and the wheel rail is alleviated, the vibration and the impact are reduced, and the running stability and the safety of the vehicle are improved.

In the related art, the rail-bound engineering vehicle generally employs an axle box external bogie. The bogie with the external axle box comprises a wheel pair, an axle box, a framework, a power device and the like, wherein the wheel pair comprises an axle and wheels arranged on two sides of the axle, two ends of the axle respectively penetrate through the two wheels and then extend out of the wheels, the axle box is arranged on the extending part of the axle, the axle box is connected with the framework through a series of springs, the power device is arranged on the framework, and the output end of the power device is connected with the axle.

The inventor believes that with the solutions of the related art, the lateral dimensions of the bogie are large, limited by the overall structural layout constraints of the bogie, and the space in which the lateral dimensions of the bogie can be reduced is limited, and is not suitable for running on a track with small limits.

Disclosure of Invention

The embodiment of the application provides a bogie and a rail engineering vehicle, which are mainly used for solving the problem that the transverse size of the bogie is large in the related technology.

According to a first aspect of embodiments of the present application, there is provided a bogie including:

the two wheel pairs are oppositely arranged and comprise an axle and two wheels fixed on two sides of the axle;

the two axle boxes are arranged on each wheel pair, and are arranged on the axle and positioned between the two wheels;

the frame comprises two oppositely arranged side beams and a cross beam for connecting the two side beams, and the side beams are perpendicular to the axle and connected to the axle box;

the two power devices are respectively used for driving the two wheel pairs to move, and are symmetrically arranged relative to the center of the bogie; the power device comprises a traction motor, a transmission mechanism and a gear box, wherein the traction motor is arranged on the framework, the traction motor is connected with the input end of the gear box through the transmission mechanism, and the output end of the gear box is connected with the axle.

The bogie as described above, optionally, the transmission mechanism includes a speed reducer and an elastic coupling connected with each other, the traction motor is connected with the speed reducer, and the elastic coupling is connected with the input end of the gear box;

two speed reducer mounting seats are arranged below the cross beam, the two speed reducer mounting seats are respectively positioned at the positions, close to the side beams, of the cross beam, and the speed reducers are arranged on the speed reducer mounting seats; two side surfaces of the cross beam facing the axle are respectively provided with a gear box hanging seat, and the gear box is arranged on the gear box hanging seat;

the traction motor, the speed reducer, the elastic coupling and the gear box of the same power device are coaxially arranged and are parallel to the side beam.

The bogie as described above, optionally, the transmission mechanism includes a right-angle reducer and a universal coupling, the traction motor is connected to the right-angle reducer, and the universal coupling is connected to the input end of the gear box;

the side of each side beam, which is far away from the cross beam, is provided with a right-angle reducer mounting seat, the right-angle damper mounting seats on the two side beams are symmetrically arranged relative to the center of the bogie, and the right-angle reducers are arranged on the right-angle reducer mounting seats; the traction motor is arranged close to the cross beam, and the gear box is fixed on the axle.

The bogie as described above, optionally, the cross beam is welded and fixed at the middle part of the side beam; the transverse beam and the side beam are both box-shaped structures, and each box-shaped structure comprises an upper cover plate, a lower cover plate and a web plate, wherein the upper cover plate and the lower cover plate are arranged oppositely, and the web plate is connected with the upper cover plate and the lower cover plate.

Optionally, the bogie as described above further includes a bearing device disposed on the cross beam, where the bearing device includes a core disc and a side bearing disposed on an upper surface of the cross beam, the core disc is disposed in a middle of the cross beam, and the side bearing is disposed at both ends of the cross beam.

The bogie as described above, optionally, further comprising a suspension lockout device comprising a head axle cylinder, a lift car cylinder, and a gearbox boom lockout cylinder; the top shaft oil cylinder is arranged on one side of the side beam, which is far away from the cross beam, and the top shaft oil cylinder is arranged on the axle box; the jacking oil cylinders are arranged on the cross beam and positioned on two sides of the core disc; the gearbox boom lock cylinder is disposed between the frame and the gearbox boom.

Optionally, a secondary spring mounting seat is further disposed on the side beam, and the secondary spring mounting seats are disposed at two ends of the upper surface of the side beam; the lower surface of the side beam is provided with a series spring mounting seat, the axle box is provided with a corresponding series spring fixing seat, and the axle box is connected with the side beam through a series spring.

Optionally, a hydraulic shock absorber mounting seat is further disposed on a side of the side beam facing the cross beam, the hydraulic shock absorber mounting seats are disposed at both ends of the side beam, one end of the hydraulic shock absorber is fixed in the hydraulic shock absorber mounting seat, and the other end of the hydraulic shock absorber is connected to the axle box.

The bogie as described above optionally further comprises unit brakes, one side of each wheel is provided with the unit brakes, the unit brakes are single-side brake shoe tread brakes, and four unit brakes are symmetrically arranged relative to the center of the bogie.

According to a second aspect of embodiments of the present application, there is provided a rail work vehicle comprising a vehicle body and a bogie as described in any one of the above, the vehicle body being provided on the bogie.

By adopting the bogie and the rail engineering vehicle according to the embodiment of the application, the bogie comprises two wheel pairs, a framework and two power devices, the two wheel pairs are oppositely arranged, and each wheel pair comprises an axle and two wheels fixed on two sides of the axle; each wheel pair is provided with two axle boxes, and the two axle boxes are arranged on the axle and positioned between the two wheels; the frame comprises two opposite side beams and a cross beam for connecting the two side beams, and the side beams are perpendicular to the axle and connected to the axle box; the two power devices are respectively used for driving the two wheel pairs to move, and are symmetrically arranged relative to the center of the bogie; the power device comprises a traction motor, a transmission mechanism and a gear box, wherein the traction motor is arranged on the framework, the traction motor is connected with the input end of the gear box through the transmission mechanism, and the output end of the gear box is connected with the axle. The bogie of the embodiment of the application is compact in structure, facilitates arrangement of other parts on the bogie, is beneficial to reducing the size of the bogie, and is suitable for running on a track with a small limit by arranging the axle boxes on the inner sides of the wheels and symmetrically arranging the two power devices relative to the center of the bogie.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic illustration of a bogie according to an embodiment of the present application;

FIG. 2 is a schematic bottom view of a truck according to an embodiment of the present application;

FIG. 3 is a schematic bottom view of a truck according to another embodiment of the present application;

FIG. 4 is a simplified structural diagram of a framework provided by an embodiment of the present application;

shown in fig. 5 is a simplified bottom view of a frame according to an embodiment of the present application.

Reference numerals:

10-wheel pair; 11-axle; 12-a wheel;

20-axle boxes;

30-a framework; 31-side beam; 311-jack shaft oil cylinder; 312-secondary spring mount; 313-a spring mount; 314-hydraulic shock absorber mount; 32-a cross beam; 321-reducer mounting base; 322-gearbox hanging seat; 323-core disc; 324-side bearings;

40-a power plant; 41-a traction motor; 42-a gearbox; 43-a reducer; 44-elastic coupling; 45-right angle reducers; 46-universal coupling;

50-hydraulic shock absorber;

60-unit brake.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.