CN112744251A - Bogie assembly for railway vehicle and railway vehicle - Google Patents
Bogie assembly for railway vehicle and railway vehicle Download PDFInfo
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- CN112744251A CN112744251A CN201911053939.3A CN201911053939A CN112744251A CN 112744251 A CN112744251 A CN 112744251A CN 201911053939 A CN201911053939 A CN 201911053939A CN 112744251 A CN112744251 A CN 112744251A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
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Abstract
The invention relates to the field of wheel shafts, in particular to a bogie assembly for a railway vehicle and the railway vehicle, wherein the bogie assembly comprises a guide frame assembly, the bottom of the guide frame assembly is rotatably connected with guide wheels and guide safety wheels, the guide wheels and the guide safety wheels are arranged at intervals along the length direction of the railway vehicle, and the periphery of each guide wheel is used for rolling contact with the inner wall of a track; at least part of the structure of the guide safety wheel is positioned below the inner edge of the track; the distance between the rotation axis of the guide safety wheel and the symmetry plane of the guide frame assembly is larger than the distance between the rotation axis of the guide wheel and the symmetry plane of the guide frame assembly. The bogie assembly for the railway vehicle is beneficial to improving the structural strength of the guide safety wheel and the light weight design of the railway vehicle on the premise of ensuring the emergency protection function, and has a better rollover prevention function.
Description
Technical Field
The invention relates to the field of wheel shafts, in particular to a bogie assembly for a railway vehicle and the railway vehicle.
Background
The rail vehicle is a vehicle form through the track guide, usually can be provided with level to leading wheel in rail vehicle's bottom, contact with the track through leading wheel in order to play the guide effect to rail vehicle, orbital top edge is provided with the horizontal bulge that is used for spacingly usually simultaneously, thereby avoid the leading wheel to break away from the track, play the effect of safety guarantee, however, the leading wheel has wearing and tearing and ageing problem, in case the leading wheel appears damaging, then produce great influence to rail vehicle's safety, make rail vehicle break away from the track easily thereby arouse the incident, thereby lead to rail vehicle's security low.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a bogie assembly for a railway vehicle and a railway vehicle with high safety.
The purpose of the invention is realized by the following technical scheme:
the invention provides a bogie assembly for a railway vehicle, which comprises a guide frame assembly, guide wheels and guide safety wheels, wherein the guide wheels and the guide safety wheels are rotatably connected to the bottom of the guide frame assembly; at least part of the structure of the guide safety wheel is positioned below the inner edge of the track; the distance between the rotation axis of the guide safety wheel and the symmetry plane of the guide frame assembly is larger than the distance between the rotation axis of the guide wheel and the symmetry plane of the guide frame assembly.
Further, the height of the guide safety wheel is higher than that of the guide wheel.
Furthermore, a guide wheel safety beam is arranged above the guide wheels and comprises a safety portion extending horizontally, the top surface of the safety portion is located below the inner edge of the track, and the top surface of the safety portion and the top surface of the guide safety wheel are located on the same horizontal plane.
Further, the bogie assembly further comprises: the steering mechanism comprises an axle housing assembly, a steering knuckle assembly, a slewing bearing, a left steering straight arm, a right steering straight arm and a steering tie rod;
the axle housing assembly is rotatably connected to the guide frame assembly through a slewing bearing, and two steering knuckle assemblies are arranged and are respectively and rotatably connected to two ends of the axle housing assembly; the steering tie rod is transversely arranged on the guide frame assembly, one end of the left steering straight arm is connected with one of the steering knuckle assemblies, and the other end of the left steering straight arm is connected with one end of the steering tie rod; one end of the right steering straight arm is connected with the other steering knuckle assembly, and the other end of the right steering straight arm is connected with the other end of the tie rod;
the bottoms of the left steering straight arm and the right steering straight arm are both connected with a safety wheel shaft, and the guide safety wheel is rotatably connected to the safety wheel shaft.
Further, the bogie assembly further comprises: the anti-rollover beam is connected to the support column, and the left end and the right end of the anti-rollover beam are located below the inner edge of the track.
Further, the bogie assembly still includes stabilizer bar assembly, and stabilizer bar assembly one end is fixed on the axle housing assembly, and the other end is used for fixing on the frame of bogie assembly.
Furthermore, the bogie assembly also comprises a steering drag link, one end of the steering drag link is connected with the left steering straight arm, and the other end of the steering drag link is connected with the guide frame assembly.
Further, the bogie assembly still includes guide frame protection support column and guide frame protection gasket, the guide frame protection support column is connected the below of axle housing assembly, guide frame protection gasket install on the guide frame protection support column and be located the below of guide frame assembly.
Furthermore, the bogie assembly still includes wheel hub assembly, wheel, electronic assembly and transmission shaft assembly, and the wheel hub assembly is equipped with two and rotates with two knuckle assemblies respectively and is connected, and the wheel is equipped with two and installs respectively on two wheel hub assemblies, and electronic assembly is connected on the axle housing assembly, and the transmission shaft assembly supports in axle housing assembly and knuckle assembly and is used for connecting wheel hub assembly and electronic assembly.
Furthermore, the bogie assembly also comprises a brake assembly, the brake assembly is arranged on the steering knuckle assembly, and the brake assembly is used for contacting with the hub assembly to generate a braking action.
Further, the brake assembly comprises a brake and a brake mounting seat; the brake is installed on the brake mount pad, and the brake mount pad is installed on the knuckle assembly, and the brake is equipped with the friction disc, and the brake disc is equipped with to the wheel hub assembly, and the brake drives friction disc and brake disc contact.
Furthermore, a wheel speed sensor is arranged on the steering knuckle assembly, an induction gear ring is arranged on the brake disc and rotates synchronously with the wheel, and the wheel speed sensor is used for detecting the number of rotation turns of the induction gear ring in unit time.
Further, the axle housing assembly includes: axle housing and axle housing festival fork, axle housing festival fork are equipped with two and connect both ends about the axle housing respectively, two axle housing festival forks and two knuckle assemblies one-to-one, all are provided with the pinhole on axle housing festival fork and the knuckle assembly, are equipped with the swizzle between axle housing festival fork and the knuckle assembly, and the one end pressure equipment of swizzle is in the pinhole of axle housing festival fork, and in the pinhole of knuckle assembly was worn to locate by the other end of swizzle, is provided with copper sheathing and first rubber oil blanket between the pinhole of knuckle assembly and the swizzle.
Further, axle housing assembly still includes: the damping spring mounting seat, the straight push rod mounting seat and the V push rod mounting seat are arranged on the outer side of the damping spring mounting seat; the damping spring mounting seat is connected to the upper side of the horizontal central plane of the axle housing, and the straight push rod mounting seat is connected to the lower side of the horizontal central plane of the axle housing; the straight push rod mounting seat is used for mounting a straight push rod assembly and a shock absorber assembly; the V push rod mount pad is connected at the upside of the horizontal central plane of axle housing, and the V push rod mount pad is used for installing the V push rod assembly.
The invention also provides a railway vehicle comprising the bogie assembly. The bogie assembly for the railway vehicle and the railway vehicle comprise the guide wheels and the guide safety wheels, so that when the guide wheels fail, the guide safety wheels can play a role in guiding, and the railway vehicle is prevented from being separated from a track. The guide wheels and the guide safety wheels are arranged at intervals along the length direction of the rail vehicle, so that the problem that the guide wheels and the guide safety wheels are invalid together can be effectively solved. And because the distance between the axis of the guide safety wheel and the symmetrical plane of the guide frame assembly is greater than the distance between the axis of the guide wheel and the symmetrical plane of the guide frame assembly, the outer diameter of the guide safety wheel can be smaller on the premise of ensuring the emergency protection function, and the improvement of the structural strength of the guide safety wheel and the lightweight design of a railway vehicle are facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a general block diagram of a truck assembly for a railway vehicle according to the present invention;
FIG. 2 is a half sectional view of the truck assembly for a railway vehicle of the present invention;
FIG. 3 is a perspective view of an axle housing assembly of the present invention;
FIG. 4 is a block diagram of an alternative angle of axle housing assembly of the present invention;
FIG. 5 is a structural view of a wheel rim structure according to the present invention;
FIG. 6 is a cross-sectional view of the wheel rim structure of the present invention;
FIG. 7 is a block diagram of the brake assembly of the present invention;
FIG. 8 is a block diagram of the drive shaft assembly of the present invention;
FIG. 9 is a block diagram of the rear cover assembly of the present invention;
FIG. 10 is a block diagram of a safety shield, emergency device, according to the present invention;
FIG. 11 is a block diagram of a guided safety wheel according to the present invention;
wherein the reference numerals are: 1. a brake assembly; 2. a hub assembly; 3. a knuckle assembly; 4. a stabilizer bar assembly; 5. a side-turn resistant cross beam; 6. an electric assembly; 7. an axle housing assembly; 8. a drive shaft assembly; 9. a slewing bearing; 10. a support pillar; 11. a steering drag link; 12. a left steering straight arm; 13. a tie rod; 14. a guide frame assembly; 15. a track; 16. a right steering straight arm; 17. a rear cover assembly; 18. a wheel; 19. a hub end cap; 20. a flat washer; 21. a circlip; 22. a limiting end cover; 23. a limiting block; 24. a round nut; 25. a needle bearing; 26. a steel wire retainer ring for the hole; 27. a second rubber oil seal; 28. a thrust bearing; 29. a lower kingpin; 30. a slewing bearing mounting seat; 31. a guide frame protection gasket; 32. the guide frame protects the support column; 33. a main pin blanking cover; 34. a grease nipple; 35. a main pin fixing block; 36. an oil drain plug screw; 37. a copper sleeve; 38. an upper kingpin; 39. a first rubber oil seal; 40. a gap adjusting shim; 41. a wheel speed sensor; 101. a brake; 102. a brake mounting seat; 103. a gasket; 104. a nut; 105. a dust cover; 106. locking a guide bolt; 107. a friction plate; 141. a guide wheel; 142. a guide wheel safety beam; 161. a guiding safety wheel; 162. a safety axle; 171. a refueling plug screw; 201. an induction gear ring; 202. a brake disc; 203. a rolling bearing; 204. a hub flange; 701. a damping spring mount; 702. v push rod mount pad; 703. an axle housing yoke; 704. a straight push rod mounting seat; 705. a guide frame protection support column mounting seat; 706. an axle housing; 707. a rear cushion plate; 708. a front base plate; 801. a spline shaft near the hub end; 802. a distal hub end spline shaft; 803. a universal joint.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The "lateral direction" herein refers to the width direction of the rail vehicle, "left and right" refers to both sides in the width direction of the rail vehicle, and "front and rear" refers to both sides in the length direction of the rail vehicle.
Example 1
As shown in fig. 1 to 11, the bogie assembly for a railway vehicle according to the embodiment of the present application includes a guide frame assembly 14, a guide wheel 141 and a guide safety wheel 161, wherein the guide wheel 141 and the guide safety wheel 161 are rotatably connected to the bottom of the guide frame assembly 14, the guide wheel 141 and the guide safety wheel 161 are spaced apart from each other along the length direction of the railway vehicle, that is, the rotation axis of the guide wheel 141 and the rotation axis of the guide safety wheel 161 both extend in the vertical direction and are not coaxial, the guide wheel 141 is an elastic wheel with a tire disposed on the outside, the guide safety wheel 161 is a steel wheel, and the outer periphery of the guide wheel 141 is configured to be in rolling contact with the inner wall of the track (15) so as to guide the guide frame assembly 14 to travel along the track direction; at least part of the structure of the guide safety wheel 161 is located below the inner edge of the track 15 to limit the guide frame assembly 14 from being separated from the track; the distance between the rotation axis of the guide safety wheel 161 and the symmetry plane of the guide frame assembly 14 is greater than the distance between the rotation axis of the guide wheel 141 and the symmetry plane of the guide frame assembly 14; the height of the guide safety wheel 161 is higher than that of the guide wheel 141.
It is understood that the symmetry plane of the guide frame assembly 14 refers to a symmetry plane of the guide frame assembly 14 which is symmetrical left and right in the vertical direction.
The rail vehicle of the present invention is provided with the guide wheels 141 and the guide safety wheels 161 such that the guide safety wheels 161 can play a role of guiding when the guide wheels 141 fail, thereby preventing the rail vehicle from being separated from the rail. The guide wheels 141 and the guide safety wheels 161 are independently and separately installed and are arranged at intervals along the length direction of the rail vehicle, so that the problem that the guide wheels 141 and the guide safety wheels 161 fail together can be effectively solved, and meanwhile, the distance between the axis of the guide safety wheels 161 and the symmetrical plane of the guide frame assembly 14 is greater than the distance between the axis of the safety guide wheels and the symmetrical plane of the guide frame assembly 14, so that the outer diameter of the guide safety wheels 161 can be smaller on the premise of ensuring the emergency protection function, and the structural strength of the guide safety wheels 161 and the lightweight design of the rail vehicle are improved. The height of the guide safety wheel 161 is higher than that of the guide wheel 141, so that when the rail vehicle inclines and the center of gravity deviates from the rail, the guide safety wheel 161 is firstly clamped by the rail to limit the overturn of the vehicle body, and the guide safety wheel 161 has a good anti-rollover function and can protect the guide wheel 141.
As shown in fig. 10, a guide wheel safety beam 142 is disposed above the guide wheel 141, the guide wheel safety beam 142 includes a safety portion extending horizontally, a top surface of the safety portion is located below an inner edge of the rail 15 to restrict the guide frame assembly 14 from being separated from the rail 15, and the top surface of the safety portion is located at the same level as a top surface of the guide safety wheel 161.
In the specific embodiment shown in fig. 10, the guide wheel safety beam 142 further includes a connecting portion extending in a vertical direction, one end of the connecting portion is connected to the safety portion, and the other end is connected to the guide frame assembly 14, that is, the guide wheel safety beam 142 is L-shaped, and the acting surface of the guide wheel safety beam 142 is the top surface of the safety portion. The guide wheel safety beam 142 is matched with the guide safety wheel 161, so that the running safety of the railway vehicle can be further improved. When the vehicle inclines, the action surface of the guide wheel safety beam 142 and the top surface of the guide wheel 161 can be in contact with the inner edge of the track, so that double protection of preventing side turning is realized.
In other embodiments, the active surface of the guide wheel safety beam 142 may also be located below the top surface of the guide wheel 161 or above the top surface of the guide wheel 161.
As shown in fig. 1, the bogie assembly further comprises: the axle housing assembly 7, the knuckle assembly 3, the slewing bearing 9, the left steering straight arm 12, the right steering straight arm 16 and the steering tie rod 13.
The axle housing assembly 7 is rotatably connected to the guide frame assembly 14 through the rotary support 9, specifically, the guide frame assembly 14 is mounted on the outer ring of the rotary support 9, the inner ring of the rotary support 9 is connected to the axle housing assembly 7, and the inner ring of the rotary support 9 can rotate relative to the outer ring, so that the guide frame assembly 14 can rotate relative to the axle housing assembly 7 around the vertical axis of the rotary support 9. The two steering knuckle assemblies 3 are respectively and rotatably connected to two ends of the axle housing assembly 7; the steering tie rod 13 is transversely arranged on the guide frame assembly 14, one end of the left steering straight arm 12 is connected with one of the steering knuckle assemblies 3, and the other end of the left steering straight arm 12 is connected with one end of the steering tie rod 13; one end of the right steering straight arm 16 is connected to the other knuckle assembly 3, and the other end of the right steering straight arm 16 is connected to the other end of the tie rod 13.
Specifically, one end of the left steering straight arm 12 is connected to one of the knuckle assemblies 3 by a bolt, and the other end of the left steering straight arm 12 is connected to one end of the tie rod 13 by a ball joint. One end of the right steering straight arm 16 is connected with the other steering knuckle assembly 3 through a bolt, and the other end of the right steering straight arm 16 is connected with the other end of the tie rod 13 through a ball hinge.
The bottom of each of the left steering straight arm 12 and the right steering straight arm 16 is connected with a safety wheel shaft 162, and the guide safety wheel 161 is rotatably connected with the safety wheel shaft 162. In other embodiments, the slewing bearing 9 may be replaced by a thrust cylindrical roller bearing, which performs the function of rotating the guide frame assembly 14 in a horizontal plane relative to the axle housing assembly 7.
The utility model discloses a bogie assembly can be applicable to electric drive rail vehicle, has efficient, the noise is low, characteristics of energy-concerving and environment-protective, this bogie assembly has simultaneously to turn to concurrently, electric drive, three functions of direction, can realize the self-steering function of bogie, the train carriage that is equipped with this bogie assembly can independent operation, can increase and decrease at will, the equipment carriage, the adaptability of train has been improved, the defect that current rail carriage can not be suitable for every carriage and all can the independent operation has been overcome.
In the embodiment shown in fig. 10, the bogie assembly further comprises: the anti-rollover beam 5 and the support columns 10; the supporting column 10 is connected to the bottom of the axle housing assembly 7, the anti-rollover beam 5 is connected to the supporting column 10, the anti-rollover beam 5 extends in the width direction of the rail vehicle, and the left end and the right end of the anti-rollover beam are both located below the inner edge of the rail.
Specifically, as shown in fig. 10, the number of the support columns 10 is 2, 2 support columns 10 are connected to the bottom of the axle housing assembly 7, and the anti-rollover beam 5 is connected to 2 support columns 10.
The axle housing assembly 7, the 2 supporting columns 10 and the anti-rollover beam 5 are fixedly connected together, so that the bogie assembly is more stable, the small bounce of a car body during steering is effectively reduced, further, the anti-rollover beam 5 can be clamped by the rail 15 when the rail car inclines and the gravity center deviates from the rail, the rollover of the rail car is limited, particularly, the guide wheel safety beam 142 and the guide safety wheel 161 can also be clamped by the rail 15 when the rail car inclines and the gravity center deviates from the rail, the rollover of the rail car is limited, the anti-rollover beam 5, the guide wheel safety beam 142 and the guide safety wheel 161 have triple functions, the car body is effectively prevented from rollover under the emergency condition that the rail car is abnormally rollover, and the safety of passengers is ensured to the maximum extent.
In the embodiment shown in fig. 1, the bogie assembly further includes a stabilizer bar assembly 4, and one end of the stabilizer bar assembly 4 is fixed to the axle housing assembly 7, and the other end is used for being fixed to a frame (not shown) of the bogie assembly. The stabilizer bar assembly 4 is used to prevent the vehicle body from being excessively laterally tilted during turning, and to keep the vehicle body as balanced as possible. In the embodiment shown in fig. 1, the bogie assembly further comprises a steering drag link 11, one end of the steering drag link 11 is connected with the left steering drag arm 12, and the other end of the steering drag link 11 is connected with the guide frame assembly 14.
Specifically, the middle part of the left steering straight arm 12 is connected with the steering straight pull rod 11 through a ball hinge, and the other end of the steering straight pull rod 11 is connected with the guide frame assembly 14 through a ball hinge.
When the rail vehicle runs, the guide wheels 141 are always in contact with the guide rails, when the rail vehicle turns, the guide frame assembly 14 is guided to rotate on the horizontal plane by the curved guide rails, the guide frame assembly 14 drives the left steering straight arm 12 and the left steering knuckle assembly 3 to rotate through the steering straight pull rod 11, the left steering straight arm 12 drives the right steering straight arm 16 and the right steering knuckle assembly 3 to rotate through the steering tie rod 13, and therefore synchronous steering of the left wheel and the right wheel is achieved, the rail vehicle is guided to run in the rail direction, and turning of the rail vehicle is completed.
In the embodiment shown in fig. 2, the bogie assembly 6 further includes a guide frame protection support column 32 and a guide frame protection gasket 31, the guide frame protection support column 32 is connected below the axle housing assembly 7, and the guide frame protection gasket 31 is mounted on the guide frame protection support column 32 and located below the guide frame assembly 14.
Specifically, a guide frame protection support column mounting seat 705 is arranged below the axle housing assembly 7, and the guide frame protection support column mounting seat 705 is used for mounting the guide frame protection support column 32.
The safety performance of this bogie assembly can be promoted in the setting of guide frame protection gasket 31. The concrete expression is as follows: when slewing bearing 9 became invalid, the guide frame assembly 14 became invalid and drove from axle housing assembly 7, guide frame assembly 14 dropped on guide frame protection gasket 31, prevent that guide frame assembly 14 from continuing to drop downwards, guide frame protection gasket 31 can play emergent guard action under the condition that the guide frame became invalid, and then guarantee the direction function of bogie assembly, make the vehicle can go to nearest station safely, meanwhile, train electronic alarm, the train slows down this moment, the guide frame still can lead, guide the train and go, avoid the derailment accident, improve train security performance greatly, furthest guarantees passenger's safety.
In conclusion, the guide safety wheel 161, the guide frame protection gasket 31, the anti-rollover beam 5 and other series of safety protection devices and emergency devices in the structural design of the bogie assembly guarantee the basic functions of the bogie assembly from all aspects, prevent rollover at an emergency moment and greatly improve the safety performance of the vehicle.
In the embodiment shown in fig. 2, the bogie assembly further includes a hub assembly 2, a wheel 18, an electric assembly 6 and a transmission shaft assembly 8, the hub assembly 2 is provided with two and is respectively rotatably connected with the two knuckle assemblies 3, and a rolling bearing 203 is arranged between the hub assembly 2 and the knuckle assemblies 3. The two wheels 18 are respectively arranged on the two hub assemblies 2, the hub assembly 2 is provided with a hub flange 204 for installing the wheels 18, and the wheels 18 bear the total weight of the whole vehicle and transmit driving force or braking force to the ground.
The electric assembly 6 is connected to the axle housing assembly 7, the number of the transmission shaft assemblies 8 is 2, 2 transmission shaft assemblies 8 are symmetrically arranged on two sides of the electric assembly 6, the transmission shaft assemblies 8 are connected between the electric assembly 6 and the hub assembly 2, the electric assembly 6 transmits power to the transmission shaft assemblies 8, and the power is transmitted to the hub assembly 2 through the transmission shaft assemblies 8, so that the wheels 18 are driven to run; the drive shaft assembly 8 is supported in the axle housing assembly 7 and the knuckle assembly 3.
In an alternative embodiment, the drive shaft assembly 8 and the electric drive assembly 6 are not provided, and the steering knuckle assemblies 3 and the hub assemblies 2 on both sides are connected only through the axle housing assembly 7, so that the steering bogie assembly is set in a non-power mode.
In an alternative embodiment, a hub reduction gear is provided at the connection between the hub assembly 2 and the driveshaft assembly 8 to increase the torque and improve the performance of the bogie assembly.
As shown in fig. 2 and 8, propeller shaft assembly 8 includes a proximal hub-end spline shaft 801, a universal joint 803, and a distal hub-end spline shaft 802, one end of proximal hub-end spline shaft 801 and one end of distal hub-end spline shaft 802 are connected by universal joint 803, and the other end of distal hub-end spline shaft 802 is splined to power assembly 6, so that the torque output from power assembly 6 can be transmitted to propeller shaft assembly 8. The other end of the spline shaft 801 near the hub end is connected to the hub assembly 2 through a spline, specifically, the hub assembly 2 is provided with a hub end cover 19, the other end of the spline shaft 801 near the hub end is connected to the hub end cover 19 through a spline, the hub end cover 19 is connected to the hub assembly 2 through a bolt, the transmission shaft assembly 8 transmits the torque output by the electric assembly 6 to the hub assembly 2 so as to drive the vehicle to run, the transmission shaft assembly 8 is supported on the axle housing assembly 7 and the steering knuckle assembly 3 through a needle bearing 25, the needle bearing 25 is fixed by a round nut 24, and a wire retaining ring 26 for holes and a second rubber oil seal 27 are arranged at the needle bearing 25.
As shown in fig. 6, a groove is formed on the spline shaft 801 near the hub end, and an elastic retainer ring 21 and a flat washer 20 are arranged at the groove to limit axial movement of one side of the spline shaft 801 near the hub end; a limiting block 23 and a limiting end cover 22 are arranged at the shaft end of the spline shaft 801 close to the hub end, and the limiting block 23 is matched with the limiting end cover 22 to limit the axial movement of the other side of the spline shaft 801 close to the hub end; the limit end cover 22 is connected to the hub assembly 2 through bolts, and the universal joint 803 is located between the steering knuckle assembly 3 and the axle housing assembly 7.
As shown in fig. 1, the bogie assembly further comprises a brake assembly 1, the brake assembly 1 is mounted on the knuckle assembly 3, and the brake assembly 1 is used for contacting with the hub assembly 2 to generate a braking action.
As shown in fig. 5 and 7, the brake assembly 1 includes a brake 101 and a brake mount 102; the brake 101 is installed on the brake mounting seat 102 by being provided with a locking guide bolt 106, a washer 103 and a nut 104, the brake mounting seat 102 is installed on the knuckle assembly 3, thereby installing the brake assembly 1 on the knuckle assembly 3, and a dust cover 105 is installed outside the nut 104 in order to prevent dust from entering the brake. The brake 101 is provided with a friction plate 107, the hub assembly 2 is provided with a brake disc 202, and the brake 101 drives the friction plate 107 to contact with the brake disc 202 to generate friction resistance, so that the braking of the whole vehicle is realized.
The knuckle assembly 3 is provided with a wheel speed sensor 41, the brake disc 202 is provided with an induction ring gear 201, when the wheel 18 rotates, the induction ring gear 201 rotates synchronously with the wheel 18, and the wheel speed sensor 41 is used for detecting the number of rotation turns of the induction ring gear 201 in unit time, so that wheel speed information can be detected.
As shown in fig. 3 and 4, the axle housing assembly 7 includes: the axle housing assembly comprises an axle housing 706 and an axle housing yoke 703, wherein the axle housing yoke 703 is provided with two parts and is respectively connected to the left end and the right end of the axle housing 706, the two axle housing yokes 703 are in one-to-one correspondence with two steering knuckle assemblies 3, pin holes are formed in the axle housing yoke 703 and the steering knuckle assemblies 3, a main pin is arranged between the axle housing yoke 703 and the steering knuckle assemblies 3, one end of the main pin is pressed in the pin hole of the axle housing yoke 703, the other end of the main pin penetrates through the pin hole of the steering knuckle assemblies 3, and a copper sleeve 37 and a first rubber oil seal 39 are arranged between the pin hole of the steering knuckle assemblies 3 and the main.
As shown in fig. 2, 5 and 6, pin holes are formed in the axle housing yoke 703 and the bogie assembly 3, a master pin is arranged between the knuckle assembly 3 and the axle housing yoke 703 and is rotatably connected through the master pin, one end of the master pin is press-fitted in the pin hole of the axle housing yoke 703 through interference fit, the other end of the master pin is inserted into the pin hole of the knuckle assembly 3, a copper sleeve 37 and a first rubber oil seal 39 are installed between the pin hole of the knuckle assembly 3 and the master pin, a master pin fixing block 35 is connected to the end of the knuckle assembly 3 facing the axle housing yoke 703, the knuckle assembly 3 and the master pin fixing block 35 are surrounded to form the pin hole of the knuckle assembly 3, and the master pin fixing block 35 is fixedly connected with the knuckle assembly 3 through a bolt to limit radial displacement of the master pin. A main pin blocking cover 33 is arranged on the outer side of a pin hole of the steering knuckle assembly 3, the main pin blocking cover 33 is located on the outer side of the end portion of the main pin, a grease nipple 34 is arranged on the main pin blocking cover 33, and the grease nipple 34 is used for injecting lubricating grease to the periphery of the main pin so as to reduce the friction force between a copper sleeve 37 and the main pin during steering movement. Specifically, before the knuckle assembly 3 is installed, the spline shaft 802 at the far hub end of the transmission shaft assembly 8 penetrates through the axle housing yoke 703, the spline shaft 802 at the far hub end is installed on the electric assembly 6, then the spline shaft 801 at the near hub end of the transmission shaft assembly 8 penetrates through the knuckle assembly 3, and the spline shaft 801 at the near hub end is installed on the hub assembly, so that installation of the transmission shaft assembly 8 is guaranteed.
Specifically, the king pin includes upper king pin 38 and lower king pin 29, the top and the bottom of axle housing yoke 703 all are provided with the pinhole, correspondingly, the top and the bottom of knuckle assembly 3 correspond the position and also are provided with the pinhole, the one end of going up king pin 38 passes through the pinhole of interference fit pressure equipment at axle housing yoke 703 top, the other end of going up king pin 38 rotates and inserts in the pinhole of knuckle assembly 3 top, clearance adjustment gasket 40 wears to be equipped with in the periphery of going up king pin 38, clearance adjustment gasket 40 is located between axle housing yoke 703 and knuckle assembly 3 for fill the clearance of axle housing yoke 703 and knuckle assembly 3 in upper king pin 38 department. One end of the lower king pin 29 is press-fitted in a pin hole at the bottom of the axle housing yoke 703 through interference fit, the other end of the upper king pin 38 is rotatably inserted in a pin hole at the bottom of the knuckle assembly 3, a thrust bearing 28 is arranged on the periphery of the upper king pin 38, and the thrust bearing 28 is positioned between the axle housing yoke 703 and the knuckle assembly 3 and used for reducing the rotational friction between the axle housing yoke 703 and the knuckle assembly 3.
The wheel hub assembly 2 can rotate around the horizontal central axis of the knuckle assembly 3 (i.e. the knuckle axis in fig. 2) to realize the function of wheel driving, and the knuckle assembly 3 can rotate around the kingpin axis relative to the axle housing assembly 7, so that the wheel hub assembly 2 can rotate around the kingpin and rotate around the horizontal central axis of the knuckle assembly 3 to realize the function of wheel steering. The intersection point between the center axis of the kingpin and the horizontal center axis of the knuckle assembly 3 coincides with the center of the universal joint 803, so that the bogie assembly can achieve stable steering.
As shown in fig. 4, the axle housing assembly 7 further includes front and rear pads 708, 707, which are respectively located on the front and rear sides of the axle housing 706.
As shown in FIG. 4, the axle housing assembly 7 further includes a damper spring mount 701, a straight push rod mount 704, and a V-push rod mount 702.
The damping spring mounting seat 701 is welded on the upper side of the horizontal central plane of the axle housing 706, the straight push rod mounting seat 704 is welded on the lower side of the horizontal central plane of the axle housing 706, and the damping spring mounting seat 701 is connected with the straight push rod mounting seat 704; the straight push rod mounting seat 704 is used for mounting a straight push rod assembly and a shock absorber assembly; the V push rod mounting seat 702 is welded on the upper side of the horizontal central plane of the axle housing 706, and the V push rod mounting seat 702 is used for mounting the V push rod assembly.
The guide frame protection support column mounting seat 705 is welded at the bottom of the axle housing 706; the electric assembly 6 is connected to a front backing plate 708 of the axle housing assembly 7, and a rear cover assembly 17 is arranged on a rear backing plate 707 of the axle housing assembly 7; the electric assembly 6 comprises a motor and a main reducer, and the motor is connected with the transmission shaft assembly 8 through the main reducer. The three-phase line on the motor is connected with a power battery of the whole vehicle, the motor converts electric energy into mechanical energy and outputs torque, the torque output by the motor shaft is increased through the main speed reducer and then transmitted to the transmission shaft assembly 8, and the torque is transmitted to the hub assembly 2 through the transmission shaft assembly 8, so that the wheels 18 are driven to run.
Damping spring mount 701 and straight push rod mount pad 704 further link together through hexagon head bolt to make the two fix on axle housing 706 more firmly, in addition, for preventing hexagon head bolt pretension in-process, damping spring mount pad 701 or straight push rod mount pad 704 atress warp, especially, install the stay tube additional between damping spring mount pad 701 or straight push rod mount pad 704, set up hexagon head bolt and fix damping spring mount pad 701, the stay tube, straight push rod mount pad 704.
As shown in fig. 9, an oiling screw plug 171 is installed on the rear cover assembly 17 and used for filling gear lubricating oil to the axle housing and lubricating the main reducer gear, and the gear lubricating oil ensures that the gear pair can normally work; correspondingly, an oil drain plug 36 is mounted at the bottom of the axle housing assembly 7 for periodic gear oil replacement.
Example 2
The railway vehicle provided by the embodiment of the invention comprises the bogie assembly.
The bogie assembly disclosed by the invention can be suitable for electrically-driven medium and low speed rail vehicles, has the characteristics of high efficiency, low noise, energy conservation and environmental protection, has three functions of steering, electric driving and guiding at the same time, can realize the self-guiding function of the bogie, can independently run a train carriage provided with the bogie assembly, can increase, decrease and assemble the carriage at will, and improves the adaptability of the train. The steering drive function of the bogie assembly and the steering function of the guide frame assembly 14 make it easier for a vehicle equipped with the bogie assembly to run at a higher speed and steer, and effectively reduce the turning radius. The bogie assembly is provided with a series of safety protection devices and emergency devices, such as a guide safety wheel 161, a guide frame protection gasket 31, a stabilizer bar assembly 4, a side-turn-resisting beam 5 and the like, and the safety protection devices ensure the basic functions of the bogie assembly from all aspects and greatly improve the safety performance of a vehicle.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (15)
1. A bogie assembly for a railway vehicle is characterized by comprising a guide frame assembly (14), guide wheels (141) and guide safety wheels (161), wherein the guide wheels (141) and the guide safety wheels (161) are rotatably connected to the bottom of the guide frame assembly (14), the guide wheels (141) and the guide safety wheels (161) are arranged at intervals along the length direction of the railway vehicle, and the peripheries of the guide wheels (141) are suitable for being in rolling contact with the inner wall of a track (15); at least part of the structure of the guide safety wheel (161) is positioned below the inner edge of the track (15); the distance between the rotation axis of the guide safety wheel (161) and the symmetry plane of the guide frame assembly (14) is larger than the distance between the rotation axis of the guide wheel (141) and the symmetry plane of the guide frame assembly (14).
2. Bogie assembly for railway vehicles according to claim 1 characterized in that the guiding safety wheels (161) are higher than the guiding wheels (141).
3. The bogie assembly for railway vehicles according to claim 1, wherein a guide wheel safety beam (142) is provided above the guide wheel (141), the guide wheel safety beam (142) comprising a horizontally extending safety portion, the top surface of the safety portion being located below the inner edge of the track (15), the top surface of the safety portion being located at the same level as the top surface of the guide safety wheel (161).
4. The railway vehicle truck assembly as claimed in claim 1, wherein the truck assembly further comprises: the steering mechanism comprises an axle housing assembly (7), a steering knuckle assembly (3), a slewing bearing (9), a left steering straight arm (12), a right steering straight arm (16) and a steering tie rod (13);
the axle housing assemblies (7) are rotatably connected to the guide frame assembly (14) through the slewing bearing (9), and two steering knuckle assemblies (3) are arranged and are respectively rotatably connected to two ends of each axle housing assembly (7); the steering tie rod (13) is transversely arranged on the guide frame assembly (14), one end of the left steering straight arm (12) is connected with one of the steering knuckle assemblies (3), and the other end of the left steering straight arm (12) is connected with one end of the steering tie rod (13); one end of the right steering straight arm (16) is connected with the other steering knuckle assembly (3), and the other end of the right steering straight arm (16) is connected with the other end of the steering tie rod (13);
the bottoms of the left steering straight arm (12) and the right steering straight arm (16) are both connected with a safety wheel shaft (162), and the guide safety wheel (161) is rotatably connected to the safety wheel shaft (162).
5. The railway vehicle truck assembly as claimed in claim 4, further comprising: the anti-rollover beam comprises an anti-rollover beam (5) and support columns (10), wherein the support columns (10) are connected to the bottom of an axle housing assembly (7), the anti-rollover beam (5) is connected to the support columns (10), and the left end and the right end of the anti-rollover beam (5) are located below the inner edge of a track (15).
6. The bogie assembly of claim 4 further comprising a stabilizer bar assembly (4), the stabilizer bar assembly (4) being secured to the axle housing assembly (7) at one end and to the frame of the bogie assembly at the other end.
7. The bogie assembly for railway vehicles according to claim 4, wherein the bogie assembly further comprises a steering drag link (11), one end of the steering drag link (11) is connected with the left steering drag arm (12), and the other end of the steering drag link (11) is connected with the guide frame assembly (14).
8. The bogie assembly for railway vehicles according to claim 4, wherein the bogie assembly further comprises a guide frame protective support column (32) and a guide frame protective gasket (31), wherein the guide frame protective support column (32) is connected below the axle housing assembly (7), and the guide frame protective gasket (31) is mounted on the guide frame protective support column (32) and located below the guide frame assembly (14).
9. The bogie assembly for the railway vehicle according to claim 4, wherein the bogie assembly further comprises two wheel hub assemblies (2), two wheels (18), two electric assemblies (6) and two transmission shaft assemblies (8), the two wheel hub assemblies (2) are respectively rotatably connected with the two steering knuckle assemblies (3), the two wheels (18) are respectively installed on the two wheel hub assemblies (2), the electric assemblies (6) are connected on the axle housing assembly (7), and the transmission shaft assembly (8) are supported in the axle housing assembly (7) and the steering knuckle assembly (3) and are used for connecting the wheel hub assembly (2) and the electric assemblies (6).
10. The bogie assembly for railway vehicles according to claim 9, wherein the bogie assembly further comprises a brake assembly (1), the brake assembly (1) being mounted on the knuckle assembly (3), the brake assembly (1) being adapted to contact the hub assembly (2) for producing a braking action.
11. The bogie assembly for railway vehicles according to claim 10, characterized in that the brake assembly (1) comprises a brake (101) and a brake mount (102); the brake (101) is installed on the brake installation seat (102), the brake installation seat (102) is installed on the steering knuckle assembly (3), the brake (101) is provided with a friction plate (107), the brake disc (202) is installed on the hub assembly (2), and the brake (101) drives the friction plate (107) to contact with the brake disc (202).
12. The bogie assembly of claim 11, wherein the knuckle assembly (3) is provided with a wheel speed sensor (41), the brake disc (202) is provided with a sensing ring gear (201), the sensing ring gear (201) rotates synchronously with the wheel (18), and the wheel speed sensor (41) is configured to detect the number of rotations of the sensing ring gear (201) per unit time.
13. Bogie assembly according to claim 4 characterized in that the axle housing assembly (7) comprises: axle housing (706) and axle housing yoke (703), axle housing yoke (703) are equipped with two and connect respectively in the left and right sides both ends of axle housing (706), two axle housing yoke (703) and two knuckle assemblies (3) one-to-one, all be provided with the pinhole on axle housing yoke (703) and knuckle assembly (3), be equipped with the king pin between axle housing yoke (703) and knuckle assembly (3), the one end pressure equipment of king pin is in the pinhole of axle housing yoke (703), the other end of king pin is worn to locate in the pinhole of knuckle assembly (3), be provided with copper sheathing (37) and first rubber oil blanket (39) between the pinhole of knuckle assembly (3) and the king pin.
14. A bogie assembly for a railway vehicle according to claim 13 wherein the axle housing assembly (7) further comprises: a damping spring mounting seat (701), a straight push rod mounting seat (704) and a V push rod mounting seat (702); the damping spring mounting seat (701) is connected to the upper side of the horizontal central plane of the axle housing (706), and the straight push rod mounting seat (704) is connected to the lower side of the horizontal central plane of the axle housing (706); the straight push rod mounting seat (704) is used for mounting the straight push rod assembly and the shock absorber assembly; the V push rod mounting seat (702) is connected to the upper side of the horizontal center plane of the axle housing (706), and the V push rod mounting seat (702) is used for mounting a V push rod assembly.
15. A rail vehicle comprising a bogie assembly as claimed in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053939.3A CN112744251A (en) | 2019-10-31 | 2019-10-31 | Bogie assembly for railway vehicle and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053939.3A CN112744251A (en) | 2019-10-31 | 2019-10-31 | Bogie assembly for railway vehicle and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112744251A true CN112744251A (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911053939.3A Pending CN112744251A (en) | 2019-10-31 | 2019-10-31 | Bogie assembly for railway vehicle and railway vehicle |
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| Country | Link |
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| CN (1) | CN112744251A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535017A (en) * | 2021-06-30 | 2022-12-30 | 比亚迪股份有限公司 | Railway vehicle and bogie thereof |
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