Axle box built-in bogie frame
Technical Field
The invention relates to the technical field of power bogies of railway vehicles, in particular to a bogie frame with an internal axle box.
Background
Bogie frames refer to the parts of the rail vehicle that are responsible for carrying and transferring the weight of the vehicle body, and are one of the most important key components of the rail vehicle. Firstly, the weight of the bearing car body is the most basic requirement on the bogie frame, and the self-adaptive adjustment can be carried out on the track car in the curve running, so that the car can flexibly, safely and smoothly run along the steel rail, reliably bear various forces acting on the car and transmit the forces to the wheel sets in an equalizing way. Secondly, in order to achieve efficient acceleration and deceleration of the vehicle, the frame must recognize the movement patterns of the bogie and the vehicle body, preventing excessive relative displacement of the bogie and the vehicle body. Furthermore, the framework plays a role of connecting the primary suspension device and the secondary suspension device, is used for reducing upward transmission of vehicle vibration and wheel set vibration, and ensures the running stability of the vehicle.
The traditional bogie frame has heavy structure and heavy weight, is difficult to serve in small-radius curve lines, has poor line distortion adaptability, further increases wheel rail abrasion, and has higher running and maintenance costs, the mass of the bogie frame greatly increases sprung mass, so that the action force transmitted to the steel rail is increased, and meanwhile, the transverse impact force to the bearing is also increased, so that the running stability and comfort of the railway vehicle are affected to a certain extent.
Disclosure of Invention
The invention provides a bogie frame of a railway vehicle, which solves the problems of heavy structure and poor line torsion adaptability of the bogie frame of the railway vehicle in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a built-in bogie frame of axle box, it is including taking the crossbeam of crossing and being fixed in the curb girder on crossbeam four angles, and the middle part of crossbeam is fixed with single air spring mount pad, is provided with the drawbar installation chamber in the single air spring mount pad.
Further, the side members include a first side member, a second side member, a third side member and a fourth side member arranged in a clockwise direction, the first side member is disposed on the same side as the second side member and is collinear, the third side member is disposed on the same side as the fourth side member and is collinear, and the first side member is parallel to the fourth side member.
Further, axle box rigid spring mounting cavities and a series of axle box vertical shock absorber mounting seats are arranged on the bottom surfaces of one ends of the first side beam, the second side beam, the third side beam and the fourth side beam, which are far away from the cross beam.
Further, a foundation brake mounting base is fixed to the outer sides of one end of the first, second, third and fourth side beams adjacent to the cross beam, respectively.
Further, the bottom surfaces of the first side beam, the second side beam, the third side beam and the fourth side beam, which are adjacent to one end of the cross beam, are respectively fixed with a rotary arm type positioning joint mounting seat.
Further, a damper mount is fixed to the top surfaces of the first and third side members adjacent to one end of the cross member, respectively.
Further, a secondary transverse shock absorber mounting seat is respectively fixed on the inner sides of the second side beam and the fourth side beam.
Further, two sides of the cross beam are respectively fixed with a secondary vertical shock absorber mounting seat.
Further, a motor hanging seat is respectively fixed at the front end and the rear end of the cross beam.
Further, an anti-rolling torsion bar mounting seat is fixed on the bottom surface of the cross beam.
The invention has the beneficial effects that the frame is an axle box built-in frame, so that wheels of the railway vehicle are positioned at the outer side of the frame, the noise can be shielded, the cross beam of the frame can be shortened, the whole frame has a compact structure, and the rigidity of the frame is increased and the dead weight is lightened.
The single air spring mounting seat arranged in the middle of the cross beam is used for mounting an air spring, the form of the single air spring can reduce the rotation rigidity of the bogie applying the framework, the bogie can conveniently pass through a small-radius curve track, the wheel set attack angle, the wheel track abrasion, the wheel track transverse force and the wheel axle transverse force of the inner side suspension bogie can be reduced, the curve wheel track abrasion is reduced, and the curve passing performance is improved. The traction rod mounting cavity is arranged in the single air spring mounting seat, so that the traction rod can be directly mounted in the center pin hole in the air spring, and an additional traction rod mounting seat is omitted, so that the structure of the framework is more compact.
Drawings
Fig. 1 is a top perspective view of an axle box built-in bogie frame.
Fig. 2 is a perspective view from below of the axle box built-in bogie frame.
The hydraulic lifting device comprises a transverse beam 1, a transverse beam 2, a side beam 21, a first side beam 22, a second side beam 23, a third side beam 24, a fourth side beam, a 3, a single air spring mounting seat, a 4, a traction rod mounting cavity, a 5, a snake-motion resisting shock absorber mounting seat, a 6, a foundation braking device mounting seat, a 7, a second vertical shock absorber mounting seat, a 8, a second horizontal shock absorber mounting seat, a 9, a motor hanging seat, a 10, an anti-side rolling torsion bar mounting seat, a 11, a rotating arm positioning node mounting seat, a 12, an axle box rigid spring mounting cavity, a 13, a first axle box vertical shock absorber mounting seat, a 14, a height control valve mounting seat and a 15, a framework lifting seat.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
As shown in fig. 1, the axle box built-in bogie frame comprises a cross beam 1 and side beams 2 fixed on four corners of the cross beam 1, wherein a single air spring mounting seat 3 is fixed in the middle of the cross beam 1, and a traction rod mounting cavity 4 is arranged in the single air spring mounting seat 3.
The side member 2 includes a first side member 21, a second side member 22, a third side member 23, and a fourth side member 24 arranged in a clockwise direction, the first side member 21 is disposed on the same side as the second side member 22 and is collinear, the third side member 23 is disposed on the same side as the fourth side member 24 and is collinear, and the first side member 21 is parallel to the fourth side member 24.
As shown in fig. 2, the first, second, third and fourth side members 21, 22, 23 and 24 are each provided with an axle box rigid spring mounting cavity 12 and a series of axle box vertical damper mounting seats 13 on the bottom surface of the end thereof remote from the cross member 1. The end of the pedestal rigid spring is closely attached to the pedestal rigid spring mounting cavity 12, and the pedestal rigid spring is used for transmitting the load of the framework and the upper part of the framework to the wheel pair and then to the steel rail, and is a bearing component. A axlebox vertical damper mount 13 is located at the end of each side sill remote from the cross member 1 for mounting a axlebox vertical damper for damping vibrational energy transferred between the axlebox and the frame.
A foundation brake mount 6 is fixed to the outer sides of the first, second, third and fourth side members 21, 22, 23 and 24 adjacent to one end of the cross member 1, respectively. The bogie that framework among this scheme was suitable for adopts the motor drive of axle-locking permanent magnetism direct drive, needs to adopt the disk braking form to be foundation braking, so welds foundation braking device mount pad 6 in the outside of every curb girder, through bolted connection foundation braking device, is provided with a foundation braking device on every wheel correspondence, so distribute four foundation braking device mount pads 6 on this framework.
The first, second, third and fourth side beams 21, 22, 23 and 24 are each fixed with a swivel arm type positioning joint mount 11 on the bottom surface adjacent to one end of the cross beam 1. The rotary arm type positioning node installation seat 11 is provided with a rotary arm type positioning device through bolts, one end of the rotary arm type positioning device is arranged in the rotary arm type positioning node installation seat 11 through an elastic rubber positioning node, the effect of positioning the axle box is achieved, and the movement of the axle box is limited in the installation seat.
A respective one of the anti-hunting damper mount bases 5 is fixed to the top surfaces of the first and third side members 21, 23 adjacent to one end of the cross member 1. The anti-meandering damper mounting seat 5 is provided with a rubber node at one end of the anti-meandering damper through a bolt, and the other end of the anti-meandering damper is arranged on the vehicle body, so that the meandering self-excitation movement is attenuated, and the operation safety is ensured.
A secondary transverse damper mount 8 is fixed to the inner sides of the second and fourth side members 22, 24, respectively, i.e., 2 secondary transverse damper mounts 8 are provided in the present frame for mounting secondary transverse dampers. The rubber node at one end of the secondary transverse shock absorber is connected to the secondary transverse shock absorber mounting seat 8 by bolts, and the other end of the secondary transverse shock absorber is hinged to the chassis of the vehicle body and used for attenuating transverse vibration energy between the vehicle body and the framework.
Two sides of the beam 1 are respectively fixed with a two-system vertical shock absorber mounting seat 7, namely, two sides on the framework are respectively provided with a two-system vertical shock absorber mounting seat 7 for mounting the two-system vertical shock absorber. The rubber node at one end of the secondary vertical shock absorber is arranged on the secondary vertical shock absorber mounting seat 7, and the other end of the secondary vertical shock absorber is arranged at the bottom of the sleeper beam above the single air spring and used for damping vibration transmitted between the vehicle body and the framework, so that stability and comfort degree in the running process of the vehicle are ensured.
The front end and the rear end of the cross beam 1 are respectively fixed with a motor hanging seat 9. The motor hanging seat 9 is welded on the front end face and the rear end face of the cross beam 1 and used for hanging a permanent magnet direct current traction motor serving as a driving device, the permanent magnet direct current traction motor is arranged on an axle through a shaft-locking hollow shaft device, and in order to ensure the reliability and stability of motor installation, the permanent magnet direct current traction motor needs to be hinged through a pull rod device through the motor hanging seat 9, and as the front and rear sides of a bogie applicable to the framework are power wheels, the motor hanging seat 9 is arranged on the front and rear end faces of the cross beam 1.
An anti-rolling torsion bar mounting seat 10 is fixed on the bottom surface of the cross beam 1. The anti-side rolling torsion bar mounting seat 10 is welded in the middle of the bottom surface of the cross beam 1 and is used for mounting 2 anti-side rolling torsion bar devices, and the torsion bar of the anti-side rolling torsion bar devices is hinged with the anti-side rolling torsion bar mounting seat 10 along the length direction of the cross beam. Because only a single air spring is arranged in the framework, the side rolling rigidity of the framework is greatly reduced, the anti-side rolling torsion bar device is arranged through the anti-side rolling torsion bar mounting seat 10 to prevent the excessive tilting of the vehicle body, and the riding comfort and the driving safety are ensured.
The height control valve mounting seat 14 is welded on the outer side of the side beam 2, the height control valve mounting seat 14 is used for mounting a height control valve, and the height of the single air spring positioned in the middle of the cross beam 1 is controlled through the height control valve, so that the good performance of the single air spring is ensured.
And a framework lifting seat 15 is welded on the outer sides of the first side beam 21, the second side beam 22, the third side beam 23 and the fourth side beam 24 respectively and is used for allowing ropes to pass through so as to facilitate the lifting of the framework. When the framework is assembled with the wheel set, the framework is hoisted by a crane through the framework hoisting seat 15, and then the framework hoisting seat 15 is assembled, and is a stress point of framework hoisting.