CN114056366B - Flexible framework type bogie and railway vehicle - Google Patents
Flexible framework type bogie and railway vehicle Download PDFInfo
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- CN114056366B CN114056366B CN202010773171.3A CN202010773171A CN114056366B CN 114056366 B CN114056366 B CN 114056366B CN 202010773171 A CN202010773171 A CN 202010773171A CN 114056366 B CN114056366 B CN 114056366B
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- 239000000725 suspension Substances 0.000 claims abstract description 46
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 238000005299 abrasion Methods 0.000 claims abstract description 6
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- 230000007246 mechanism Effects 0.000 claims description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 10
- 230000001788 irregular Effects 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000013040 rubber vulcanization Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B61F3/00—Types of bogies
- B61F3/02—Types of bogies with more than one axle
-
- 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
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
-
- 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
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies
- B61F5/18—King-bolts
-
- 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
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
-
- 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
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
-
- 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
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a flexible framework type bogie and a railway vehicle. The flexible framework type bogie comprises a flexible axle box, a suspension vibration reduction device and a flexible framework arranged on the flexible axle box and the suspension vibration reduction device; the flexible framework comprises an L-shaped beam, a flexible connecting member, a T-shaped beam and a special-shaped abrasion pad; the flexible axle box comprises an axle box body, a saddle-shaped elastic device, two suspension damping device bearing platforms and bearing mounting holes; the two suspension vibration reduction devices are respectively fixed on the two suspension vibration reduction device bearing platforms; the suspension vibration damper comprises an inner spring, an outer spring and a spring cap; the inner spring is arranged inside the outer spring; the spring cap is buckled at the top end of the inner spring and the top end of the outer spring. The flexible framework type bogie can meet the requirements of the linear hunting critical running speed of the railway vehicle and the curve passing performance of the railway vehicle, so that the bogie has the functions of adapting to the curve passing capability and adapting to the linear hunting critical speed.
Description
Technical Field
The invention relates to a flexible framework type bogie and a railway vehicle.
Background
The railway transportation industry in the world is vigorous in development, and the railway transportation is rapidly developed. In the new era of 'high-speed passenger transport and heavy load freight transport' of railway transportation, the dynamic running environment of the railway transportation is changed with the continuous improvement of the running speed and the carrying capacity of the train, and more severe requirements are provided for the running quality of railway vehicles.
The bogie mainly plays roles of steering (smoothly passing through curves), bearing (achieving load targets), running (achieving running speed and running quality) and braking (achieving that the train running vehicles stop within a specified distance) in the train running of the rail transit vehicle. The bogie is a key and foundation for realizing heavy load acceleration and ensuring the running quality of the rail transit vehicle.
The quality of rail vehicle operation is primarily dependent on the smoothness, stability and curve passing performance of the vehicle as it is operated. Vehicle stability refers to the comfort of a passenger ride or the integrity of the cargo being transported; the vehicle running stability refers to vehicle safety, and mainly refers to vehicle hunting stability, derailment stability and vehicle overturning stability; the curve passing performance mainly refers to the derailment stability, the overturning stability and the abrasion performance of the vehicle.
The existing truck bogie for the railway vehicle in the world mainly comprises three-piece type and integral frame type. The traditional three-piece bogie frame is loosely connected, has the characteristics of simple structure, reliable performance, low cost, good wheel weight average load performance and strong line irregularity adaptability, but has poor diamond deformation resistance, low hunting destabilization critical speed and poor transverse stability performance, is difficult to run at a high speed, is suitable for the conditions of heavy axle, low speed, low braking distance requirement and unsmooth line, and meets the requirement of heavy-load transportation. The integral welding frame type bogie frame is of a rigid integral structure, has the characteristics of no diamond deformation, light weight, light unsprung mass, high critical speed of hunting instability, easy guarantee of transverse stability design, adaptation to the characteristics of poor line irregularity capability and complex stress of the frame, suitability for the conditions of small axle weight, high speed, strict braking distance requirement and good line, and meets the requirement of quick transportation.
The existing truck main three-large-piece bogie improves the diamond-resistant rigidity by additionally mounting a cross support technology, a spring supporting plate swinging technology, a subframe and other technologies so as to obtain high running speed; the operation performance and the operation quality of the three-piece bogie are improved by adding elastic side bearings, two-stage stiffness springs and other technologies.
Modern railway transportation not only requires fast speed, but also requires a lot of pulls and stability of the pulls. With the improvement of speed, the wheel set can more easily excite the shaking head of the car body when moving along the steel rail, meanwhile, the transverse force of the wheel rail when the car passes through a curve is increased, the running quality of the car is reduced, and the derailment accident of the train can be caused when serious.
As is well known to those skilled in the relevant arts, the relationship between the vehicle linear hunting stability (hunting critical operating speed) and the vehicle curve passing characteristics is contradictory, so it is necessary to study how to achieve the best compromise between high speed stability and curve passing characteristics in truck design to achieve high quality operation of the vehicle in line with high speed and curve passing capability.
At present, the three-piece bogie and the integral frame type bogie do not consider the relation between the critical speed of straight line hunting of the vehicle and the stability of the vehicle running through a curve, and cannot meet the optimal requirements of the straight line running quality and the curve running quality of the vehicle. In recent years, flexible frame bogies have received widespread attention. Compared with a three-large-piece bogie and an integral frame bogie, the flexible frame bogie has higher line distortion adaptability and the linear hunting critical running speed is not obviously reduced.
Therefore, a flexible frame type bogie and a railway vehicle are required to be designed, the flexible frame type bogie can meet the requirements of the vehicle on the linear hunting critical running speed and the vehicle curve passing performance, and the bogie adaptation curve passing capability and the linear hunting critical speed adaptation function are improved.
Disclosure of Invention
In view of this, it is an object of the present invention to provide a flexible frame bogie. The flexible framework type bogie can meet the requirements of the vehicle on the linear hunting critical running speed and the vehicle curve passing performance, and improves the bogie adaptation curve passing capability and the effect of adapting to the linear hunting critical speed. It is another object of the present invention to provide a railway vehicle comprising the flexible frame bogie as described above.
The invention adopts the following technical scheme to realize the aim.
The invention provides a flexible framework type bogie, which comprises a flexible axle box, a suspension vibration damper and a flexible framework arranged on the flexible axle box and the suspension vibration damper;
The flexible framework comprises an L-shaped beam, a flexible connecting member, a T-shaped beam and a special-shaped abrasion pad; the L-shaped beam comprises a first side beam and an end beam; the first side beams and the end beams are connected at right angles at the end parts; the T-shaped beam comprises a cross beam and a second side beam; the end parts of the cross beams are connected with the middle parts of the second side beams at right angles; the end part of the end beam and the end part of the second side beam are flexibly fixedly connected through a flexible connecting member; the middle part of the first side beam is lapped with the lower surface of the end part of the cross beam through a special-shaped wearing pad;
The flexible axle box comprises an axle box body, a saddle-shaped elastic device, two suspension damping device bearing platforms and bearing mounting holes; the axle box body comprises a first protruding part, a second protruding part, a first epitaxial part and a second epitaxial part; the first protruding part and the second protruding part are symmetrically arranged along the symmetrical axis of the axle box body; the first extension part is arranged at one side of the first protruding part far away from the second protruding part; the second extension part is arranged at one side of the second bulge part far away from the first bulge part; the saddle-shaped elastic device comprises an elastic pad, a side pad and a saddle-shaped body; the side backing plates are arranged on two sides of the saddle-shaped body; the elastic pad is arranged at the top of the saddle-shaped body; the lower part of the saddle-shaped body is arc-shaped; the lower part of the saddle-shaped body is connected with the upper end edge of the first protruding part and the upper end edge of the second protruding part to form the bearing mounting hole; the two suspension vibration damper bearing platforms are respectively arranged on the top surface of the first epitaxial part and the top surface of the second epitaxial part of the axle box body;
The two suspension vibration reduction devices are respectively fixed on the two suspension vibration reduction device bearing platforms;
The suspension vibration reduction device comprises an inner spring, an outer spring and a spring cap; the inner spring is arranged inside the outer spring; the lower part of the inner spring and the lower part of the outer spring are sleeved on the suspension damping device bearing platform; the spring cap is buckled at the top end of the inner spring and the top end of the outer spring.
The flexible framework type bogie can meet the requirements of the vehicle on the linear hunting critical running speed and the vehicle curve passing performance, and improves the bogie adaptation curve passing capability and the effect of adapting to the linear hunting critical speed.
The flexible framework has good flexibility and can generate relative torsion movement in a three-dimensional plane, so that the side beams at two sides can be mutually independent in the directions of nodding, shaking and rolling. Compared with a common bogie structure, the structure is different in that the two beam frames of the flexible framework are rigidly connected by adopting flexible members instead of rigid hard connection, and the left side beam and the right side beam of the flexible framework can be relatively independent in the three-dimensional direction, so that the structure is better suitable for road surface line irregularity.
Preferably, the flexible axle box further comprises a connecting shaft and a first connecting seat;
The first connecting seat is arranged at one end part of the first extension part of the axle box body and is fixedly connected with the first extension part;
the connecting shaft is arranged at the upper part of the first connecting seat;
The flexible frame-type bogie further comprises a radial mechanism; the radial mechanism is connected on the connecting shafts of the two flexible axle boxes at the diagonal positions in a cross manner and is used for improving the diamond-resistance capability of the flexible framework type bogie; the radial mechanism is formed by intersecting and fixing a first connecting rod and a second connecting rod; the crossing center of the first connecting rod and the second connecting rod is opposite to the center of the flexible framework.
In the present invention, the connection shaft and the first connection seat may be connected by welding, riveting or bolting. This construction makes it possible to use more suitable assembly solutions for different installation spaces. According to one embodiment of the invention, the connecting shaft is connected to the first connecting socket by welding. According to a further embodiment of the invention, the connecting shaft is connected to the first connecting socket by riveting. According to a further embodiment of the invention, the connecting shaft is connected to the first connecting socket by means of a screw.
In the invention, the elastic pad, the side pad and the saddle-shaped body can be connected through the positioning block.
In the present invention, the inner spring is preferably a round spring, and the thickness of the round spring is not particularly limited. The outer spring is preferably a round spring, and the thickness of the round spring is not particularly limited.
According to the flexible framework type steering frame, preferably, the L-shaped beam further comprises a first mounting hole, a second connecting seat and a first spherical careful disc; the end beam is provided with a second connecting seat at one end far away from the first side beam; the middle part of the first side beam is provided with a first mounting hole and a first spherical careful disc;
The T-shaped beam further comprises a side beam connecting plate and a second spherical careful disc; a second spherical careful disc is arranged at the lower part of one end of the cross beam; one end of the second side beam is provided with a side beam connecting plate.
According to the flexible framework type steering frame, preferably, the first side beam of the L-shaped beam is connected with the end part of the cross beam of the T-shaped beam through the first mounting hole and the first spherical careful disc; the end beam of the L-shaped beam is flexibly fixedly connected with the second side beam of the T-shaped beam through a second connecting seat and a flexible connecting member at the end part;
The second side beam of the T-shaped beam is flexibly fixedly connected with the flexible connecting member and the end beam of the L-shaped beam through a side beam connecting plate at the end part; an elastic cushion block mounting hole is formed in one end of the cross beam of the T-shaped beam;
the first spherical careful disc and the second spherical careful disc are lapped through the special-shaped abrasion pad;
The flexible framework also comprises an elastic cushion block; the elastic cushion block is arranged between the first mounting hole and the end part of the cross beam through the elastic cushion block mounting hole and used for limiting the vertical movement of the first side beam and the cross beam.
According to the flexible framework type steering frame of the present invention, preferably, the flexible connection member includes a special-shaped connection bolt, an elastic spherical hinge, a third connection seat, a transition washer, a gasket and a nut; the special-shaped connecting bolt sequentially penetrates through the elastic spherical hinge, the third connecting seat, the transition gasket, the gasket and the nut and connects the parts; the special-shaped connecting bolts also connect the second connecting seat, the side beam connecting plate, the elastic spherical hinge, the third connecting seat, the transition gasket, the gasket and the nut, and realize flexible fixedly connection;
The third connecting seat is of an integrated structure and comprises an irregular flat plate and a connecting rod provided with a through hole; one end of the connecting rod provided with the through hole is connected with the irregular flat plate; the through hole is used for enabling the special-shaped connecting bolt to pass through; three holes are formed in the irregular flat plate and used for fixedly connecting the third connecting seat with a side beam connecting plate on the T-shaped beam; the elastic spherical hinge is arranged in the third connecting seat; the elastic spherical hinge is connected with the second connecting seat of the first side beam through a special-shaped connecting bolt;
The elastic spherical hinge is a joint-like flexible body, is of an integrated structure and consists of an inner part, an outer part and rubber vulcanization; the inside of the elastic spherical hinge is in a sphere structure or a cone structure; the outer part of the elastic spherical hinge is in a circular structure, a conical structure or an elliptic structure; the special-shaped connecting bolt is a variable cross-section connecting bolt and is in interference fit connection with the elastic spherical hinge to transfer force between the second side beam and the cross beam.
Preferably, the flexible framework comprises a suspension seat;
The flexible framework type bogie is provided with four groups of flexible axle boxes; the flexible framework type bogie further comprises a first wheel pair, a second wheel pair, a braking device, an elastic side bearing, a lower core disc and a frame guide seat; the first wheel set and the second wheel set are provided with wheel set bearings; the bearing mounting hole is used for the insertion of the wheel pair bearing; the four groups of flexible axle boxes are arranged at the outer sides of two ends of the first wheel pair and the second wheel pair;
an elastic side bearing and a lower center plate are arranged in the middle of the flexible framework; braking devices are arranged on two sides of the flexible framework
The middle part of the beam is provided with a lower center plate mounting hole for mounting the lower center plate; the other end of the cross beam of the T-shaped beam is provided with a side bearing mounting hole for mounting the elastic side bearing;
The lower parts of the first side beam and the second side beam of the T-shaped beam are respectively provided with a guide frame seat and a hanging seat; the flexible framework is arranged on the flexible axle box and the suspension vibration reduction system through the pedestal seat; the hanging seat is used for installing a braking device.
The structural design of the side bearing mounting hole and the elastic side bearing can improve the rotation resistance moment of the vehicle, so that the instability critical speed of the snaking motion of the vehicle is improved, the rolling motion of the vehicle body is limited, and the anti-overturning performance of the vehicle is facilitated.
The combination of the radial mechanism, the suspension vibration damper, the flexible axle box and the flexible framework can provide enough positive potential capability for wheel pairs, eliminate the attack angle between wheel tracks, enable the shearing deformation of the flexible framework of the railway vehicle to be restrained elastically, inhibit the diamond deformation, greatly improve the capability of restoring the positive potential of the railway vehicle, simultaneously relieve the action force between the wheel tracks, improve the radial capability between the wheel tracks of the railway vehicle, the running speed and the curve passing capability of the railway vehicle, improve the running quality of the railway vehicle, and meet the requirements of the linear snake running critical running speed of the railway vehicle and the curve passing performance of the railway vehicle.
According to the flexible framework type steering frame, preferably, the guide frame seat is of an integrally formed structure and is provided with a seat part and two leg parts; the two support legs are respectively connected with the bottom surface of the seat part at the position close to the end part; the two support leg parts are symmetrically arranged along the symmetry axis of the guide frame seat, and a certain distance is reserved between the two support leg parts;
two support leg parts of the guide frame seat are erected on two sides of the saddle-shaped elastic device of the flexible axle box.
According to the flexible framework type steering frame, preferably, the suspension vibration reduction device further comprises a hanging ring and a positioning pin; the hanging ring is arranged to connect the spring cap with the supporting leg part of the guide frame seat; the positioning pin is used for fixing the spring cap or the guide frame seat; the locating pin is arranged in the ring of the hanging ring.
According to the flexible framework type steering frame, preferably, the elastic pad is a structural member formed by combining elastic rubber and a metal plate; the elastic pad is of a plane or splayed structure; the side backing plate is a rubber structural member; the side backing plate is rectangular, round, oval, conical or polygonal in structure. According to the parameter requirements of different railway vehicles, the longitudinal and transverse three-dimensional rigidity of the elastic cushion and the side backing plate are adjusted, so that the performance requirements required by the running of the railway vehicles can be obtained.
According to one embodiment of the invention, the resilient pad is of planar configuration. According to another embodiment of the invention, the elastic pad has a splayed configuration.
According to yet another embodiment of the invention, the side bolster is of circular configuration. According to yet another embodiment of the invention, the side bolster is of polygonal configuration.
In another aspect, the present invention provides a railway vehicle comprising a flexible frame bogie as described above.
The flexible framework type bogie can meet the requirements of the vehicle on the linear hunting critical running speed and the vehicle curve passing performance, and improves the bogie adaptation curve passing capability and the effect of adapting to the linear hunting critical speed.
Drawings
Fig. 1 is a schematic perspective view of a flexible frame-type bogie of the present invention.
Fig. 2 is a schematic top view of the flexible frame truck of fig. 1.
Fig. 3 is a schematic view of the structure of the flexible frame bogie of fig. 1.
Fig. 4 is a schematic view of the structure of the L-beam of the flexible frame of fig. 3.
Fig. 5 is a schematic view of the structure of the T-beam of the flexible frame of fig. 3.
Fig. 6 is a schematic diagram of an assembly structure of the third connecting seat and the elastic spherical hinge of the flexible frame in fig. 3.
Fig. 7 is a schematic view of the flexible axle housing and suspension damper arrangement of the flexible frame truck of fig. 1.
Fig. 8 is a schematic structural view of the axle housing body of the flexible axle housing of fig. 7.
Fig. 9 is a schematic view of the saddle shaped spring device of the flexible axle housing of fig. 7.
Fig. 10 is a schematic view of the assembly of the radial mechanism of the flexible frame bogie of fig. 1 with the connection shaft of the flexible axlebox.
Fig. 11 is a schematic view of the structure of a flexible axle housing, suspension damper and frame pedestal of a flexible frame-type bogie of the present invention.
The reference numerals are explained as follows:
1-first wheel set, 2-flexible axle box, 21-axle box body, 211-first boss, 212-second boss, 213-first outer boss, 214-second outer boss, 22-saddle spring, 221-spring pad, 222-side pad, 223-saddle body, 23-suspension damper cap, 24-connecting axle, 25-bearing mounting hole, 26-first connecting seat, 3-suspension damper, 31-inner spring, 32-outer spring, 33-spring cap, 34-suspension ring, 35-dowel pin, 4-flexible frame, 41-L-beam, 411-first side beam, 412-first mounting hole, 413-first spherical-center-of gravity disk, 414-end beams, 415-second connecting seats, 42-flexible connecting members, 421-special-shaped connecting bolts, 422-elastic spherical hinges, 423-third connecting seats, 424-transition washers, 425-gaskets, 426-nuts, 43-T-shaped beams, 431-second side beams, 432-side beam connecting plates, 433-cross beams, 434-side bearing mounting holes, 435-elastic cushion mounting holes, 436-end parts, 437-second spherical careful discs, 45-hanging seats, 46-special-shaped wear pads, 47-elastic cushion blocks, 5-braking devices, 6-elastic side bearings, 7-radial mechanisms, 8-lower heart discs, 9-guide frame seats, 91-seat parts, 92-leg parts and 10-second wheel sets.
Detailed Description
The present invention will be further described with reference to specific examples, but the scope of the present invention is not limited thereto.
Example 1
Fig. 1 is a schematic perspective view of a flexible frame-type bogie of the present invention. Fig. 2 is a schematic top view of the flexible frame truck of fig. 1. Fig. 3 is a schematic view of the structure of the flexible frame bogie of fig. 1. Fig. 4 is a schematic view of the structure of the L-beam of the flexible frame of fig. 3. Fig. 5 is a schematic view of the structure of the T-beam of the flexible frame of fig. 3. Fig. 6 is a schematic diagram of an assembly structure of the third connecting seat and the elastic spherical hinge of the flexible frame in fig. 3. Fig. 7 is a schematic view of the flexible axle housing and suspension damper arrangement of the flexible frame truck of fig. 1. Fig. 8 is a schematic structural view of the axle housing body of the flexible axle housing of fig. 7. Fig. 9 is a schematic view of the saddle shaped spring device of the flexible axle housing of fig. 7. Fig. 10 is a schematic view of the assembly of the radial mechanism of the flexible frame bogie of fig. 1 with the connection shaft of the flexible axlebox. Fig. 11 is a schematic view of the structure of a flexible axle housing, suspension damper and frame pedestal of a flexible frame-type bogie of the present invention. As shown in fig. 1 to 11, the flexible frame type bogie comprises a first wheel set 1, a second wheel set 10, a suspension vibration damper 3, a brake device 5, an elastic side bearing 6, a radial mechanism 7, a lower core disc 8, a frame guide seat 9, four groups of flexible axle boxes 2 arranged outside two ends of the first wheel set 1 and the second wheel set 10, and a flexible frame 4 arranged on the flexible axle boxes 2 and the suspension vibration damper 3.
The first wheel set 1 and the second wheel set 10 are arranged parallel to each other. The first wheel set 1 and the second wheel set 10 each have a wheel set bearing. Four sets of flexible axle boxes 2 are arranged outside the two ends of the first wheel pair 1 and the second wheel pair 10. The middle part of the flexible framework 4 is provided with an elastic side bearing 6 and a lower heart disk 8. The flexible frame 4 is provided with braking means 5 on both sides. The radial mechanism 7 is cross-connected inside the two flexible axle boxes 2 in a diagonal position, which can improve the resistance of the bogie to diamond changes. The radial mechanism 7 is formed by intersecting and fixing a first connecting rod and a second connecting rod. The crossing center of the first link and the second link is arranged opposite to the center of the flexible frame 4. The flexible frame 4 is mounted on the axle housing 2 and the suspension damper 3 by means of the pedestal 9.
The flexible frame 4 comprises an L-shaped beam 41, a flexible connecting member 42, a T-shaped beam 43, a hanger bracket 45, a profiled wear pad 46 and a resilient pad 47.
The L-beam 41 is a welded integral rigid structure comprising a first side beam 411, a first mounting hole 412, an end beam 414, a second connection seat 415 and a first spherical careful disc 413. The first side beams 411 and the end beams 414 are connected at right angles at the ends. A second connection seat 415 is provided at an end of the end beam 414 remote from the first side beam 411. The middle part of the first side beam 411 is provided with a first mounting hole 412 and a first spherical careful disc 413.
The T-beam 43 is a welded integral rigid structure that includes a second side beam 431, a side beam web 432, a cross beam 433, and a second spherical careful disc 437. The end of the cross member 433 is connected at right angles to the middle of the second side member 431. A second spherical care disk 437 is provided at a lower portion of one end of the cross member 433. One end of the second side member 431 is provided with a side member connection plate 432.
The end beam 414 end of the L-shaped beam 41 is flexibly secured to the end of the second side beam 431 of the T-shaped beam 43 by flexible connecting members 42. The middle part of the first side member 411 of the L-shaped beam 41 is overlapped with the lower surface of the end part of the cross member 433 of the T-shaped beam 43 by the profiled wearing pad 46. An elastic cushion block 47 is placed between the middle part of the first side beam 411 of the L-shaped beam 41 and the upper surface of the end part of the cross beam 433 of the T-shaped beam 43 to limit the movement space.
The first side member 411 of the L-shaped beam 41 is connected to the end 436 of the cross member 433 of the T-shaped beam 43 through the first mounting hole 412 and the first spherical center-of-gravity plate 413. The end beam 414 of the L-shaped beam 41 is flexibly fixed to the second side beam 431 of the T-shaped beam 43 by the second connecting seat 415 of the end portion and the flexible connecting member 42. The first spherical care disc 413 and the second spherical care disc 437 are lapped by the profiled wear pad 46.
The second side member 431 of the T-beam 43 is flexibly secured to the end beam 414 of the L-beam 41 by the end side member attachment plate 432 and the flexible attachment member 42. The two ends of the cross beam 433 of the T-beam 43 are respectively provided with a side bearing mounting hole 434 and an elastic cushion mounting hole 435 for mounting the elastic side bearing 6 and the elastic cushion 47, respectively.
The elastic cushion 47 is disposed between the first mounting hole 412 and the end 436 of the cross member 433 through the elastic cushion mounting hole 435 to restrict the vertical movement of the first side member 411 and the cross member 433, thereby satisfying the linear and curved running requirements of the vehicle. The middle part of the beam 433 is provided with a lower center plate mounting hole for mounting the lower center plate 8, thereby realizing the falling mounting of the bogie and the upper center plate of the vehicle body.
The guide frame seat 9 and the hanger 45 are respectively provided at the lower part of the first side beam 411 of the L-shaped beam 41 and the lower part of the second side beam 431 of the T-shaped beam 43. The hanger 45 is used for mounting the brake 5.
The flexible connecting member 42 is a combination structure of an elastic spherical hinge and a special-shaped connecting bolt. The flexible connecting member 42 is an elastic structural member. The flexible connection member 42 includes a profile connection bolt 421, an elastic ball hinge 422, a third connection seat 423, a transition washer 424, a washer 425, and a nut 426. The elastic spherical hinge 422, the third connecting seat 423, the transition washer 424, the gasket 425, and the nut 426 all have holes. The special-shaped connecting bolt 421 sequentially penetrates through the elastic spherical hinge 422, the third connecting seat 423, the transition gasket 424, the gasket 425 and the nut 426, and connects the above parts. The special-shaped connecting bolts 421 also connect the second connecting seat 415 and the side beam connecting plates 432 with the elastic spherical hinge 422, the third connecting seat 423, the transition gasket 424, the gasket 425 and the nuts 426 to realize flexible fixation. The third connecting seat 423 is an integrally formed structure and comprises an irregular flat plate and a connecting rod provided with a through hole. One end of the connecting rod provided with the through hole is connected with the irregular flat plate. The through hole is used for allowing the special-shaped connecting bolt 421 to pass through. Three holes are provided in the irregular plate for consolidating the third connecting seat 423 with the side beam connecting plates 432 in the T-beam 43. The elastic ball hinge 422 is seated in the third coupling seat 423. The elastic spherical hinge 422 is connected with the second connecting seat 415 of the first side beam 411 through a special-shaped connecting bolt 421.
The elastic ball hinge 422 is a joint-like flexible body, which is an integral structure composed of an inner part, an outer part and rubber vulcanization. The elastic ball hinge 422 has a ball structure inside. The outer portion of the elastic ball hinge 422 has a circular structure. The special-shaped connecting bolt 421 is a variable cross-section connecting bolt, is in interference fit connection with the elastic spherical hinge 422, and transmits the force between the second side beam 431 and the cross beam 433.
The flexible axle housing 2 comprises an axle housing body 21, saddle shaped elastic means 22, two suspension damper caps 23, bearing mounting holes 25, a connecting shaft 24 and a first connecting seat 26.
The axle housing body 21 includes a first boss 211, a second boss 212, a first extension 213, and a second extension 214. The first protruding portion 211 and the second protruding portion 212 are symmetrically disposed along the symmetry axis of the axle box body 21. The first extension 213 is disposed on a side of the first protrusion 211 away from the second protrusion 212. The second extension 214 is disposed at a side of the second protrusion 212 remote from the first protrusion 211.
The saddle shaped elastic means 22 comprises an elastic pad 221, a side pad 222 and a saddle shaped body 223. The side pads 222 are disposed on either side of the saddle body 223. The elastic pad 221 is disposed on top of the saddle body 223. The lower part of the saddle body 223 is arc-shaped; the lower portion of the saddle body 223 is connected with the upper end edge of the first boss 211 and the upper end edge of the second boss 212 to form the bearing mounting hole 25. The bearing mounting holes 25 are for insertion of the wheel pair bearings.
The outer side of the bearing mounting hole 25 is of a groove structure; the groove structure is matched with the guide frame seat 9 for falling installation, so that the safety clearance requirement of the railway vehicle in the process of straight line and curve operation is ensured.
The elastic pad 221 is a structural member formed by combining elastic rubber and a metal plate. The elastic pad 221 has a planar structure. The side pad 222 is a rubber structure. The side pad 222 has a rectangular configuration.
Two suspension damper bosses 23 are provided on the top surface of the first extension 213 and the top surface of the second extension 214 of the axlebox body 21, respectively.
The two suspension damper units 3 are each fixed to two suspension damper unit holders 23.
The first connection seat 26 is provided at one end of the first extension 213 of the axlebox body 21, and is fixedly connected to the first extension 213. The connecting shaft 24 is arranged at the upper part of the first connecting seat 26 for realizing the fixation with the radial mechanism 7. The connecting shaft 24 is connected with the first connecting seat 26 through bolts.
The pedestal seat 9 is an integrally formed structure having a seat portion 91 and two leg portions 92. The two leg portions 92 are connected to the bottom surface of the seat portion 91 at positions near the end portions. The two leg portions 92 are symmetrically arranged along the symmetry axis of the pedestal 9, and a certain distance is provided between the two leg portions 92. The two legs 92 of the pedestal 9 are arranged on both sides of the saddle-shaped elastic means 22 of the flexible axlebox 2.
The suspension damping device 3 consists of an inner spring 31, an outer spring 32, a spring cap 33, a suspension ring 34 and two positioning pins 35. The inner spring 31 is disposed inside the outer spring 32. The lower part of the inner spring 31 and the lower part of the outer spring 32 are sleeved on the suspension damper bearing platform 23. The spring cap 33 is fastened to the top end of the inner spring 31 and the top end of the outer spring 32. The suspension ring 34 connects the spring cap 33 with the leg 92 of the pedestal 9. One of the positioning pins 35 is used for fixing the spring caps 33, respectively; the other positioning pins 35 are used for fixing the pedestal 9. The positioning pin 35 is disposed in the loop of the hanging ring 34.
Example 2
The rest is the same as in example 1 except for the following settings: the inside of the elastic ball hinge 422 has a cone structure.
Example 3
The rest is the same as in example 1 except for the following settings: the outer portion of the elastic ball hinge 422 has a tapered structure.
Example 4
The rest is the same as in example 1 except for the following settings: the outer portion of the elastic ball hinge 422 has an oval structure.
Example 5
The rest is the same as in example 1 except for the following settings: the connecting shaft 24 is connected with the first connecting seat 26 by welding.
Example 6
The rest is the same as in example 1 except for the following settings: the connecting shaft 24 is connected with the first connecting seat 26 by riveting.
Example 7
The rest is the same as in example 1 except for the following settings: the elastic pad 221 has a splayed structure.
Example 8
The rest is the same as in example 1 except for the following settings: the side pad 222 has a circular configuration.
Example 9
The rest is the same as in example 1 except for the following settings: the side pad 222 has an oval configuration.
Example 10
The rest is the same as in example 1 except for the following settings: the side pads 222 are tapered in configuration.
Example 11
The rest is the same as in example 1 except for the following settings: the side pad 222 has a polygonal structure.
Example 12
A rail vehicle comprising the flexible frame bogie of any one of embodiments 1 to 11.
The present invention is not limited to the above-described embodiments, and any modifications, improvements, substitutions, and the like, which may occur to those skilled in the art, fall within the scope of the present invention without departing from the spirit of the invention.
Claims (7)
1. The flexible framework type bogie is characterized by comprising a flexible axle box, a suspension vibration damper and a flexible framework arranged on the flexible axle box and the suspension vibration damper;
The flexible framework comprises an L-shaped beam, a flexible connecting member, a T-shaped beam and a special-shaped abrasion pad; the L-shaped beam comprises a first side beam and an end beam; the first side beams and the end beams are connected at right angles at the end parts; the T-shaped beam comprises a cross beam and a second side beam; the end parts of the cross beams are connected with the middle parts of the second side beams at right angles; the end part of the end beam and the end part of the second side beam are flexibly fixedly connected through a flexible connecting member; the middle part of the first side beam is lapped with the lower surface of the end part of the cross beam through a special-shaped wearing pad;
The flexible axle box comprises an axle box body, a saddle-shaped elastic device, two suspension damping device bearing platforms and bearing mounting holes; the axle box body comprises a first protruding part, a second protruding part, a first epitaxial part and a second epitaxial part; the first protruding part and the second protruding part are symmetrically arranged along the symmetrical axis of the axle box body; the first extension part is arranged at one side of the first protruding part far away from the second protruding part; the second extension part is arranged at one side of the second bulge part far away from the first bulge part; the saddle-shaped elastic device comprises an elastic pad, a side pad and a saddle-shaped body; the side backing plates are arranged on two sides of the saddle-shaped body; the elastic pad is arranged at the top of the saddle-shaped body; the lower part of the saddle-shaped body is arc-shaped; the lower part of the saddle-shaped body is connected with the upper end edge of the first protruding part and the upper end edge of the second protruding part to form the bearing mounting hole; the two suspension vibration damper bearing platforms are respectively arranged on the top surface of the first epitaxial part and the top surface of the second epitaxial part of the axle box body;
The two suspension vibration reduction devices are respectively fixed on the two suspension vibration reduction device bearing platforms;
the suspension vibration reduction device comprises an inner spring, an outer spring and a spring cap; the inner spring is arranged inside the outer spring; the lower part of the inner spring and the lower part of the outer spring are sleeved on the suspension damping device bearing platform; the spring cap is buckled at the top end of the inner spring and the top end of the outer spring;
the flexible axle housing further comprises a connecting shaft and a first connecting seat;
The first connecting seat is arranged at one end part of the first extension part of the axle box body and is fixedly connected with the first extension part;
the connecting shaft is arranged at the upper part of the first connecting seat;
The flexible frame-type bogie further comprises a radial mechanism; the radial mechanism is connected on the connecting shafts of the two flexible axle boxes at the diagonal positions in a cross manner and is used for improving the diamond-resistance capability of the flexible framework type bogie; the radial mechanism is formed by intersecting and fixing a first connecting rod and a second connecting rod; the crossing center of the first connecting rod and the second connecting rod is opposite to the center of the flexible framework;
The L-shaped beam further comprises a first mounting hole, a second connecting seat and a first spherical careful disc; the end beam is provided with a second connecting seat at one end far away from the first side beam; the middle part of the first side beam is provided with a first mounting hole and a first spherical careful disc;
The T-shaped beam further comprises a side beam connecting plate and a second spherical careful disc; a second spherical careful disc is arranged at the lower part of one end of the cross beam; one end of the second side beam is provided with a side beam connecting plate;
the first side beam of the L-shaped beam is connected with the end part of the cross beam of the T-shaped beam through a first mounting hole and a first spherical careful disc; the end beam of the L-shaped beam is flexibly fixedly connected with the second side beam of the T-shaped beam through a second connecting seat and a flexible connecting member at the end part;
The second side beam of the T-shaped beam is flexibly fixedly connected with the flexible connecting member and the end beam of the L-shaped beam through a side beam connecting plate at the end part; an elastic cushion block mounting hole is formed in one end of the cross beam of the T-shaped beam;
the first spherical careful disc and the second spherical careful disc are lapped through the special-shaped abrasion pad;
The flexible framework also comprises an elastic cushion block; the elastic cushion block is arranged between the first mounting hole and the end part of the cross beam through the elastic cushion block mounting hole and used for limiting the vertical movement of the first side beam and the cross beam.
2. The flexible frame-type bogie of claim 1, wherein the flexible connection member comprises a profiled connection bolt, an elastic spherical hinge, a third connection seat, a transition washer, a washer, and a nut; the special-shaped connecting bolt sequentially penetrates through the elastic spherical hinge, the third connecting seat, the transition gasket, the gasket and the nut and connects the parts; the special-shaped connecting bolts also connect the second connecting seat, the side beam connecting plate, the elastic spherical hinge, the third connecting seat, the transition gasket, the gasket and the nut, and realize flexible fixedly connection;
The third connecting seat is of an integrated structure and comprises an irregular flat plate and a connecting rod provided with a through hole; one end of the connecting rod provided with the through hole is connected with the irregular flat plate; the through hole is used for enabling the special-shaped connecting bolt to pass through; three holes are formed in the irregular flat plate and used for fixedly connecting the third connecting seat with a side beam connecting plate on the T-shaped beam; the elastic spherical hinge is arranged in the third connecting seat; the elastic spherical hinge is connected with the second connecting seat of the first side beam through a special-shaped connecting bolt;
The elastic spherical hinge is a joint-like flexible body, is of an integrated structure and consists of an inner part, an outer part and rubber vulcanization; the inside of the elastic spherical hinge is in a sphere structure or a cone structure; the outer part of the elastic spherical hinge is in a circular structure, a conical structure or an elliptic structure; the special-shaped connecting bolt is a variable cross-section connecting bolt and is in interference fit connection with the elastic spherical hinge to transfer force between the second side beam and the cross beam.
3. The flexible frame truck of claim 2 wherein said flexible frame further comprises a hanger;
The flexible framework type bogie is provided with four groups of flexible axle boxes; the flexible framework type bogie further comprises a first wheel pair, a second wheel pair, a braking device, an elastic side bearing, a lower core disc and a frame guide seat; the first wheel set and the second wheel set are provided with wheel set bearings; the bearing mounting hole is used for the insertion of the wheel pair bearing; the four groups of flexible axle boxes are arranged at the outer sides of two ends of the first wheel pair and the second wheel pair;
an elastic side bearing and a lower center plate are arranged in the middle of the flexible framework; braking devices are arranged on two sides of the flexible framework;
The middle part of the beam is provided with a lower center plate mounting hole for mounting the lower center plate; the other end of the cross beam of the T-shaped beam is provided with a side bearing mounting hole for mounting the elastic side bearing;
The lower parts of the first side beam and the second side beam of the T-shaped beam are respectively provided with a guide frame seat and a hanging seat; the flexible framework is arranged on the flexible axle box and the suspension vibration reduction system through the pedestal seat; the hanging seat is used for installing a braking device.
4. A flexible frame-type bogie as claimed in claim 3 wherein the pedestal base is of an integrally formed construction having a seat portion and two leg portions; the two support legs are respectively connected with the bottom surface of the seat part at the position close to the end part; the two support leg parts are symmetrically arranged along the symmetry axis of the guide frame seat, and a certain distance is reserved between the two support leg parts;
two support leg parts of the guide frame seat are erected on two sides of the saddle-shaped elastic device of the flexible axle box.
5. The flexible frame truck of claim 4 wherein said suspension vibration dampening device further comprises a sling and a locating pin; the hanging ring is arranged to connect the spring cap with the supporting leg part of the guide frame seat; the positioning pin is used for fixing the spring cap or the guide frame seat; the locating pin is arranged in the ring of the hanging ring.
6. The flexible frame truck according to any one of claims 1 to 5 wherein said resilient pad is a structural member of resilient rubber combined with a metal plate; the elastic pad is of a plane or splayed structure; the side backing plate is a rubber structural member; the side backing plate is rectangular, round, oval, conical or polygonal in structure.
7. A rail vehicle comprising a flexible frame bogie as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773171.3A CN114056366B (en) | 2020-08-04 | 2020-08-04 | Flexible framework type bogie and railway vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773171.3A CN114056366B (en) | 2020-08-04 | 2020-08-04 | Flexible framework type bogie and railway vehicle |
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| CN114056366B true CN114056366B (en) | 2024-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2423259C1 (en) * | 2009-12-14 | 2011-07-10 | Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" (ОАО "ВЭлНИИ") | Railway vehicle bogie |
| CN102963387A (en) * | 2012-07-10 | 2013-03-13 | 南车南京浦镇车辆有限公司 | Direct-driving type bogie structure |
| US8474383B1 (en) * | 2012-08-31 | 2013-07-02 | Strato, Inc. | Transom for a railway car truck |
| CN108238061A (en) * | 2018-02-09 | 2018-07-03 | 中车长江车辆有限公司 | Flexible axle box and its assembly method and bogie |
| CN111137316A (en) * | 2018-11-06 | 2020-05-12 | 阿尔斯通运输科技公司 | Railway vehicle bogie |
-
2020
- 2020-08-04 CN CN202010773171.3A patent/CN114056366B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2423259C1 (en) * | 2009-12-14 | 2011-07-10 | Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" (ОАО "ВЭлНИИ") | Railway vehicle bogie |
| CN102963387A (en) * | 2012-07-10 | 2013-03-13 | 南车南京浦镇车辆有限公司 | Direct-driving type bogie structure |
| US8474383B1 (en) * | 2012-08-31 | 2013-07-02 | Strato, Inc. | Transom for a railway car truck |
| CN108238061A (en) * | 2018-02-09 | 2018-07-03 | 中车长江车辆有限公司 | Flexible axle box and its assembly method and bogie |
| CN111137316A (en) * | 2018-11-06 | 2020-05-12 | 阿尔斯通运输科技公司 | Railway vehicle bogie |
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| CN114056366A (en) | 2022-02-18 |
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