CN114056366A - Flexible framework type bogie and railway vehicle - Google Patents
Flexible framework type bogie and railway vehicle Download PDFInfo
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- CN114056366A CN114056366A CN202010773171.3A CN202010773171A CN114056366A CN 114056366 A CN114056366 A CN 114056366A CN 202010773171 A CN202010773171 A CN 202010773171A CN 114056366 A CN114056366 A CN 114056366A
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- bogie
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- 239000000725 suspension Substances 0.000 claims abstract description 42
- 238000013016 damping Methods 0.000 claims abstract description 29
- 238000005299 abrasion Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 10
- 230000001788 irregular Effects 0.000 claims description 9
- 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 8
- 239000002184 metal Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 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
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- 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
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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
- 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
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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
- 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
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- 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 damping device and a flexible framework arranged on the flexible axle box and the suspension damping 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 a bearing mounting hole; the two suspension vibration damping devices are respectively fixed on the two suspension vibration damping device bearing platforms; the suspension damping device 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 straight line snaking critical operating speed of the railway vehicle and the curve passing performance of the railway vehicle, so that the bogie has the functions of being adaptive to the curve passing capacity and being adaptive to the straight line snaking 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 developed vigorously nowadays, and the railway traffic is developed rapidly. The railway transportation is in a new era characterized by 'high-speed passenger transportation and heavy-load freight transportation', the dynamic operation environment of the railway transportation is qualitatively changed along with the continuous improvement of the operation speed and the load capacity of the train, and more rigorous requirements are provided for the operation quality of the rail vehicles.
The bogie mainly plays roles of steering (smoothly passing through curves), bearing (realizing a load-carrying target), traveling (realizing running speed and running quality) and braking (realizing that train running vehicles stop within a specified distance) when the rail transit vehicles run in a train. The bogie is the key and the foundation for realizing heavy-load speed acceleration and ensuring the running quality of the rail transit vehicle.
The running quality of the railway vehicle mainly depends on the smoothness, the stability and the curve passing performance of the vehicle during running. The smoothness of vehicle running refers to the comfort of passengers or the integrity of transported goods; the vehicle running stability refers to vehicle safety, and mainly refers to vehicle snaking motion 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.
Currently, the rail vehicle truck bogie in the world mainly comprises two structural types, namely a three-piece type and an integral framework type. The three-piece bogie frame is loosely connected in a traditional mode, has the advantages of being simple in structure, reliable in performance, low in cost, good in wheel load uniformity and strong in line irregularity adapting capability, but poor in rhombus deformation resistance, low in snake instability critical speed, poor in transverse stability, difficult to run at high speed, suitable for the conditions of large shaft, low speed, poor braking distance requirement and line irregularity, and capable of meeting the requirements of heavy-load transportation. The integrally welded framework type bogie frame is a rigid integrated structure, has the characteristics of no diamond deformation, light weight, light unsprung mass, high critical speed of hunting instability, easiness in ensuring the design of transverse stability, poor capability of adapting to unsmooth lines and complex stress of the framework, is suitable for the conditions of small axle weight, high speed, strict requirement on braking distance and better lines, and meets the requirement on rapid transportation.
The existing truck main type three-piece bogie improves the diamond-resistant rigidity by additionally arranging a cross support technology, a spring supporting plate pendulum technology, an auxiliary framework and other technologies so as to obtain high running speed; the running performance and the running quality of the three-piece bogie are improved by adding the elastic side bearing, the two-stage stiffness spring and other technologies.
Modern railway transportation not only requires high speed, but also requires more pulling and stable pulling. Along with the increase of the speed, the wheel set can more easily excite the oscillating motion of the train body when moving along the steel rail, and meanwhile, the transverse force of the wheel rail when the train passes through a curve is increased, so that the running quality of the train is reduced, and train derailment accidents can be caused in serious cases.
As is well known to those skilled in the relevant art, the relationship between vehicle straight-line hunting stability (hunting critical operating speed) and vehicle curve-passing characteristics is contradictory, and therefore, it is necessary to study in truck design how to obtain the best compromise between high-speed stability and curve-passing characteristics to achieve high-quality operation of vehicle straight-line high-speed and curve-passing capability.
At present, the three large-piece type bogie and the integral framework type bogie still do not consider the relationship between the vehicle straight line snaking critical speed and the vehicle passing curve running stability, and can not meet the optimal requirements of the vehicle straight line and curve running quality. In recent years, flexible frame bogies have received much attention. Compared with the three-piece bogie and the integral framework bogie, the flexible framework bogie has higher line distortion adaptability, and the critical operation speed of straight line snaking is not obviously reduced.
Therefore, a flexible framework type bogie and a railway vehicle need to be designed, the flexible framework type bogie can meet the requirements of the vehicle straight line snaking critical operation speed and the vehicle curve passing performance, and the curve passing capability and the function of adapting to the straight line snaking critical speed of the bogie are improved.
Disclosure of Invention
In view of the above, 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 straight line snaking critical operation speed and the vehicle curve passing performance, and improves the function of the bogie in adapting to the curve passing capacity and the straight line snaking critical speed. It is a further object of the present invention to provide a railway vehicle comprising the flexible frame bogie described above.
The invention adopts the following technical scheme to achieve the purpose.
The invention provides a flexible framework type bogie which comprises a flexible axle box, a suspension damping device and a flexible framework, wherein the flexible framework is arranged on the flexible axle box and the suspension damping device;
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 beam and the end beam are connected at the end part at a right angle; the T-shaped beam comprises a cross beam and a second side beam; the end part of the cross beam is connected with the middle part of the second side beam at a right angle; the end part of the end beam is flexibly and fixedly connected with the end part of the second side beam through a flexible connecting member; the middle part of the first side beam is in lap joint with the lower surface of the end part of the cross beam through 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 a bearing mounting hole; the axle box body comprises a first boss, a second boss, a first extension part and a second extension part; the first boss and the second boss are symmetrically arranged along the symmetry axis of the axle box body; the first extending part is arranged on one side of the first protruding part far away from the second protruding part; the second extending part is arranged on one side of the second convex part far away from the first convex part; the saddle-shaped elastic device comprises an elastic pad, a side surface base plate and a saddle-shaped body; the side base 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 bulge and the upper end edge of the second bulge to form the bearing mounting hole; the two suspension damping device bearing platforms are respectively arranged on the top surface of the first extension part and the top surface of the second extension part of the axle box body;
the two suspension vibration damping devices are respectively fixed on the two suspension vibration damping device bearing platforms;
the suspension damping device comprises an inner spring, an outer spring and a spring cap; the inner spring is arranged inside the outer spring; the lower parts of the inner spring and 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 straight line snaking critical operating speed of the vehicle and the curve passing performance of the vehicle, and improves the curve passing adaptability of the bogie and the function of adapting to the straight line snaking critical speed.
The flexible framework has good flexibility and can generate relative torsional motion in a three-dimensional plane, so that the side beams at two sides can be mutually independent in the nodding, shaking and rolling directions. Compared with the common bogie structure, the flexible bogie has the difference that the two beam frames of the flexible framework adopt flexible members to replace rigid and hard connection, and the left side beam and the right side beam can be relatively independent in the three-direction, so that the non-smooth road surface line can be better adapted.
According to the flexible frame type steering frame of the invention, 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 a first extending part of the axle box body and is fixedly connected with the first extending part;
the connecting shaft is arranged at the upper part of the first connecting seat;
the flexible frame bogie further comprises a radial mechanism; the radial mechanism is connected to the connecting shafts of the two flexible axle boxes at the diagonal positions in a crossed manner and is used for improving the rhombus change resistance of the flexible framework type bogie; the radial mechanism is formed by fixing a first connecting rod and a second connecting rod in a crossed manner; the crossing center of the first connecting rod and the second connecting rod is arranged opposite to the center of the flexible framework.
In the present invention, the connecting shaft and the first connecting 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 connection shaft is connected to the first connection socket by welding. According to a further embodiment of the invention, the connecting shaft is connected to the first connecting seat by riveting. According to a further embodiment of the invention, the connecting shaft is connected to the first connecting seat by means of a bolt.
In the invention, the elastic cushion, the side base plate and the saddle-shaped body can be connected through the positioning block.
In the present invention, the inner spring is preferably a circular spring, and the thickness of the circular spring is not particularly limited. The outer spring is preferably a circular spring, and the thickness of the circular 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 center plate; a second connecting seat is arranged at one end of the end beam, which is 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 center plate;
the T-shaped beam further comprises a side beam connecting plate and a second spherical center plate; a second spherical small center plate 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 center plate; the end beam of the L-shaped beam is flexibly and 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 and fixedly connected with the flexible connecting member and the end beam of the L-shaped beam through the side beam connecting plate at the end part; one end of a cross beam of the T-shaped beam is provided with an elastic cushion block mounting hole;
the first spherical surface small center disc and the second spherical surface small center disc are in lap joint through the special-shaped abrasion pad;
the flexible framework further 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 motion of the first side beam and the cross beam.
According to the flexible framework type steering frame, preferably, the flexible connecting component comprises a special-shaped connecting bolt, an elastic spherical hinge, a third connecting 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 washer, the gasket and the nut and connects the parts; the special-shaped connecting bolt is used for connecting the second connecting seat, the side beam connecting plate, the elastic spherical hinge, the third connecting seat, the transition washer, the gasket and the nut and realizing flexible fixed connection;
the third connecting seat is of 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 enabling the special-shaped connecting bolt to penetrate through; the irregular flat plate is provided with three holes for fixedly connecting the third connecting seat with the 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 which is of an integral structure and is formed by vulcanizing the inside, the outside and rubber; the interior of the elastic spherical hinge is of a spherical structure or a conical structure; the outer part of the elastic spherical hinge is of a circular structure, a conical structure or an oval structure; the special-shaped connecting bolt is a variable cross-section connecting bolt, is connected with the elastic spherical hinge in an interference fit manner, and transmits force between the second side beam and the cross beam.
According to the flexible framework type steering frame, preferably, the flexible framework further comprises a hanging 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 center plate and a guide frame seat; the first wheel pair and the second wheel pair are provided with wheel pair bearings; the bearing mounting hole is used for inserting the wheel set bearing; the four groups of flexible axle boxes are arranged on the outer sides of two ends of the first wheel pair and the second wheel pair;
the middle part of the flexible framework is provided with an elastic side bearing and a lower center plate; the 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 a 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 part of the first side beam of the L-shaped beam and the lower part of 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 damping system through the guide frame 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 turning resistance moment of the vehicle, thereby improving the instability critical speed of the snake-shaped motion of the vehicle, limiting the rolling and swinging motion of the vehicle body and being beneficial to the overturn resistance of the vehicle.
The combination of the radial mechanism, the suspension vibration damper, the flexible axle box and the flexible framework can provide enough righting capacity for the wheel pair, eliminate the attack angle between the wheel rails, enable the shearing deformation of the flexible framework of the railway vehicle to be elastically restricted, and inhibit the rhombus deformation, greatly improve the righting capacity of the railway vehicle, relieve the acting force between the wheel rails, improve the radial capacity between the wheel rails of the railway vehicle and the running speed and curve passing capacity of the railway vehicle, improve the running quality of the railway vehicle, and give consideration to the requirements of the straight-line snake-shaped critical running speed and the curve passing capacity of the railway vehicle.
According to the flexible framework type steering frame, preferably, the guide frame seat is an integrally formed structure and is provided with a seat part and two leg parts; the two leg parts are respectively connected with the bottom surface of the seat part close to the end part; the two leg parts are symmetrically arranged along the symmetry axis of the guide frame seat, and a certain distance is reserved between the two leg parts;
two 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 damping device further comprises a hanging ring and a positioning pin; the hanging ring is arranged to connect the spring cap with the leg part of the guide frame seat; the positioning pin is used for fixing the spring cap or the guide frame seat; the positioning pin is arranged in the ring of the hanging ring.
According to the flexible framework type steering frame, preferably, the elastic cushion is a structural member formed by combining elastic rubber and a metal plate; the elastic cushion is of a plane or splayed structure; the side base plate is a rubber structural part; the side base plate is in a rectangular, circular, oval, conical or polygonal structure. According to different rail vehicle parameter requirements, the longitudinal and transverse vertical rigidity and the side base plate of the elastic pad are adjusted, and the performance requirements required by the operation of the rail vehicle can be obtained.
According to one embodiment of the invention, the resilient pad is of planar construction. According to another embodiment of the present invention, the elastic pad has a splayed structure.
According to yet another embodiment of the invention, the side pads are of circular configuration. According to yet another embodiment of the invention, the side pads are 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 straight line snaking critical operating speed of the vehicle and the curve passing performance of the vehicle, and improves the curve passing adaptability of the bogie and the function of adapting to the straight line snaking critical speed.
Drawings
Fig. 1 is a schematic perspective view of a flexible frame type bogie according to the present invention.
Fig. 2 is a schematic top view of the flexible frame bogie 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 structural view of an L-beam of the flexible framework of fig. 3.
Fig. 5 is a schematic structural view of a T-beam of the flexible framework of fig. 3.
Fig. 6 is a schematic view of an assembly structure of the third connecting seat and the elastic ball hinge of the flexible frame in fig. 3.
Fig. 7 is a schematic view of the flexible axle boxes and suspension dampers of the flexible frame bogie of fig. 1.
Fig. 8 is a schematic view of the axle housing body of the flexible axle housing of fig. 7.
Fig. 9 is a schematic view of the saddle spring arrangement 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 connecting shaft of the flexible axle box.
Fig. 11 is a schematic view of the construction of the flexible axle box, suspension damper and pedestal base of a flexible frame bogie of the present invention.
The reference numerals are explained below:
1-first wheel pair, 2-flexible axle housing, 21-axle housing body, 211-first boss, 212-second boss, 213-first extension, 214-second extension, 22-saddle spring arrangement, 221-spring pad, 222-side pad, 223-saddle body, 23-suspension damper bearing platform, 24-connecting shaft, 25-bearing mounting hole, 26-first connecting seat, 3-suspension damper arrangement, 31-inner spring, 32-outer spring, 33-spring cap, 34-lifting ring, 35-positioning pin, 4-flexible frame, 41-L beam, 411-first side beam, 412-first mounting hole, 413-first spherical small center plate, 414-end beam, 415-second connecting seat, 42-flexible connecting member, 421-special-shaped connecting bolt, 422-elastic spherical hinge, 423-third connecting seat, 424-transition washer, 425-gasket, 426-nut, 43-T-shaped beam, 431-second side beam, 432-side beam connecting plate, 433-cross beam, 434-side bearing mounting hole, 435-elastic cushion block mounting hole, 436-end part, 437-second spherical small center plate, 45-hanging seat, 46-special-shaped wearing pad, 47-elastic cushion block, 5-braking device, 6-elastic side bearing, 7-radial mechanism, 8-lower center plate, 9-guide frame seat, 91-seat part, 92-foot part and 10-second wheel pair.
Detailed Description
The present invention will be further described with reference to the following 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 according to the present invention. Fig. 2 is a schematic top view of the flexible frame bogie 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 structural view of an L-beam of the flexible framework of fig. 3. Fig. 5 is a schematic structural view of a T-beam of the flexible framework of fig. 3. Fig. 6 is a schematic view of an assembly structure of the third connecting seat and the elastic ball hinge of the flexible frame in fig. 3. Fig. 7 is a schematic view of the flexible axle boxes and suspension dampers of the flexible frame bogie of fig. 1. Fig. 8 is a schematic view of the axle housing body of the flexible axle housing of fig. 7. Fig. 9 is a schematic view of the saddle spring arrangement 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 connecting shaft of the flexible axle box. Fig. 11 is a schematic view of the construction of the flexible axle box, suspension damper and pedestal base of a flexible frame bogie of the present invention. As shown in fig. 1 to 11, the flexible frame type bogie comprises a first wheel pair 1, a second wheel pair 10, a suspension damping device 3, a braking device 5, an elastic side bearing 6, a radial mechanism 7, a lower center plate 8, a guide frame seat 9, four groups of flexible axle boxes 2 arranged at the outer sides of two ends of the first wheel pair 1 and the second wheel pair 10, and a flexible frame 4 arranged on the flexible axle boxes 2 and the suspension damping device 3.
The first wheel pair 1 and the second wheel pair 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 center plate 8. The flexible frame 4 is provided with braking means 5 on both sides. The radial mechanism 7 is connected to the inner sides of the two flexible axle boxes 2 in the diagonal positions in a crossing mode, and therefore the rhombus-resistant capacity of the bogie can be improved. The radial mechanism 7 is formed by fixing a first connecting rod and a second connecting rod in a crossed manner. The crossing center of the first link and the second link is disposed opposite to the center of the flexible frame 4. The flexible frame 4 is mounted on the axle housing 2 and the suspension damping device 3 via a pedestal base 9.
The flexible framework 4 comprises an L-beam 41, a flexible connecting member 42, a T-beam 43, a hanger 45, a profiled wear pad 46 and a spring pad 47.
The L-beam 41 is a welded integral rigid structure, and includes a first side beam 411, a first mounting hole 412, an end beam 414, a second connecting seat 415, and a first spherical center plate 413. The first side beam 411 and the end beam 414 are connected at right angles at the ends. A second connection mount 415 is provided at an end of the end beam 414 remote from the first side beam 411. The first side beam 411 has a first mounting hole 412 and a first spherical center plate 413 at the middle.
The T-beam 43 is a welded integral rigid structure, and includes a second side beam 431, a side beam connecting plate 432, a cross beam 433, and a second spherical center plate 437. The ends of the cross member 433 are connected at right angles to the middle of the second side member 431. A second spherical center disk 437 is arranged at the lower part of one end of the beam 433. The second side member 431 has a side member connecting plate 432 at one end.
The end part of the end beam 414 of the L-shaped beam 41 is flexibly fixed with the end part of the second side beam 431 of the T-shaped beam 43 through a flexible connecting member 42. The middle of the first side beam 411 of the L-shaped beam 41 is overlapped with the lower surface of the end of the cross beam 433 of the T-shaped beam 43 by a profiled wear pad 46. An elastic pad 47 is arranged 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, and the action space is limited.
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 via the first mounting hole 412 and the first spherical center plate 413. The end beam 414 of the L-shaped beam 41 is flexibly connected to the second side beam 431 of the T-shaped beam 43 via the second connecting seat 415 and the flexible connecting member 42 at the end. The first spherical center disk 413 and the second spherical center disk 437 are overlapped by a profiled wear pad 46.
The second side beam 431 of the T-shaped beam 43 is flexibly fixed to the end beam 414 of the L-shaped beam 41 via a side beam connecting plate 432 and a flexible connecting member 42 at the end. Two ends of a cross beam 433 of the T-shaped beam 43 are respectively provided with a side bearing mounting hole 434 and an elastic cushion block mounting hole 435, and the side bearing mounting hole 434 and the elastic cushion block mounting hole are respectively used for mounting the elastic side bearing 6 and the elastic cushion block 47.
The elastic cushion block 47 is arranged between the first mounting hole 412 and the end part 436 of the cross beam 433 through the elastic cushion block mounting hole 435, so that the vertical motion of the first side beam 411 and the cross beam 433 is limited, and the linear and curved running requirements of the vehicle are met. The middle part of the beam 433 is provided with a lower center plate mounting hole for mounting a lower center plate 8, and the bogie and the upper center plate of the vehicle body are arranged in a falling mode.
The pedestal 9 and the hanger 45 are provided respectively under the first side member 411 of the L-shaped beam 41 and under the second side member 431 of the T-shaped beam 43. The hanger 45 is used for mounting the brake 5.
The flexible connecting member 42 is a structure combining an elastic spherical hinge and a special-shaped connecting bolt. The flexible connecting member 42 is an elastic structure. The flexible connection member 42 includes a profiled connection bolt 421, an elastic ball hinge 422, a third connection seat 423, a transition washer 424, a washer 425, and a nut 426. Wherein, the elastic spherical hinge 422, the third connecting seat 423, the transition washer 424, the washer 425 and the nut 426 are all provided with holes. The special-shaped connecting bolt 421 penetrates through the elastic spherical hinge 422, the third connecting seat 423, the transition washer 424, the gasket 425 and the nut 426 in sequence, and connects the above parts. The special-shaped connecting bolt 421 connects the second connecting seat 415 and the side beam connecting plate 432 with the elastic spherical hinge 422, the third connecting seat 423, the transition washer 424, the gasket 425 and the nut 426, so as to realize flexible fixation. The third connecting seat 423 is an integrally formed structure, and includes an irregular flat plate and a connecting rod having 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 passing the special-shaped connecting bolt 421. The irregular flat plate is provided with three holes for fastening the third connecting seat 423 to the side sill connecting plate 432 of the T-beam 43. The elastic ball hinge 422 is seated in the third coupling seat 423. The elastic ball hinge 422 is coupled to the second connection seat 415 of the first side beam 411 by a special-shaped connection bolt 421.
The elastic spherical hinge 422 is a joint-like flexible body which is an integrated structure and is composed of an inner part, an outer part and rubber vulcanization. The elastic spherical hinge 422 is of a spherical structure. The outer portion of the elastic ball hinge 422 is a circular structure. The special-shaped connecting bolt 421 is a variable cross-section connecting bolt, is connected with the elastic spherical hinge 422 in an interference fit manner, 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, a saddle shaped resilient means 22, two suspension damper abutments 23, bearing mounting holes 25, a connecting axle 24 and a first connecting seat 26.
The axle box body 21 includes a first boss 211, a second boss 212, a first extension 213, and a second extension 214. The first protrusion 211 and the second protrusion 212 are symmetrically disposed along the symmetry axis of the axle box body 21. The first extension portion 213 is disposed on a side of the first protrusion portion 211 away from the second protrusion portion 212. The second extension portion 214 is disposed on a side of the second protrusion portion 212 away from the first protrusion portion 211.
The outer side of the bearing mounting hole 25 is of a groove-shaped structure; the groove-shaped structure is matched with the guide frame seat 9 to be installed in a falling mode, and the requirement of safety clearance during linear and curve running of the railway vehicle is met.
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 pads 222 are rubber structural members. The side pads 222 are rectangular in configuration.
Two suspension damper bearers 23 are provided on the top surface of the first outward extension 213 and the top surface of the second outward extension 214 of the axle box body 21, respectively.
The two suspension dampers 3 are fixed to the two suspension damper bearing blocks 23, respectively.
The first connecting seat 26 is provided at one end of the first extended portion 213 of the axle box body 21, and is fixed to the first extended portion 213. The connecting shaft 24 is arranged at the upper part of the first connecting seat 26 for realizing the fixation thereof with the radial mechanism 7. The connecting shaft 24 is connected to the first connecting base 26 by bolts.
The guide frame 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 near the ends thereof. The two leg portions 92 are symmetrically disposed along the symmetry axis of the guide frame base 9, and a certain distance is provided between the two leg portions 92. The two leg portions 92 of the pedestal base 9 span on both sides of the saddle-shaped resilient means 22 of the flexible axle housing 2.
The suspension damping device 3 is composed of an inner spring 31, an outer spring 32, a spring cap 33, a lifting ring 34 and two positioning pins 35. The inner spring 31 is disposed inside the outer spring 32. The lower portions of the inner spring 31 and the outer spring 32 are fitted over the suspension damper mount 23. A spring cap 33 is fastened to the top end of the inner spring 31 and the top end of the outer spring 32. The hanging ring 34 connects the spring cap 33 with the leg portion 92 of the pedestal base 9. One of the positioning pins 35 is used for fixing the spring cap 33; the other positioning pins 35 are used to fix the pedestal 9. The positioning pin 35 is disposed in the loop of the bail 34.
Example 2
The same as in example 1 except for the following settings: the interior of the elastic spherical hinge 422 is in a cone structure.
Example 3
The same as in example 1 except for the following settings: the outer portion of the elastic ball hinge 422 is a tapered structure.
Example 4
The same as in example 1 except for the following settings: the outer portion of the elastic spherical hinge 422 is an oval structure.
Example 5
The same as in example 1 except for the following settings: the connecting shaft 24 and the first connecting seat 26 are connected by welding.
Example 6
The same as in example 1 except for the following settings: the connecting shaft 24 is connected to the first connecting base 26 by caulking.
Example 7
The same as in example 1 except for the following settings: the elastic pad 221 has a splayed structure.
Example 8
The same as in example 1 except for the following settings: the side pads 222 are circular in configuration.
Example 9
The same as in example 1 except for the following settings: the side pads 222 are oval in configuration.
Example 10
The same as in example 1 except for the following settings: the side pads 222 are tapered.
Example 11
The same as in example 1 except for the following settings: the side pads 222 are polygonal in configuration.
Example 12
A railway vehicle comprising the flexible frame bogie of any one of embodiments 1-11.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and substitutions which may occur to those skilled in the art may be made without departing from the spirit of the invention.
Claims (10)
1. A flexible framework type bogie is characterized by comprising a flexible axle box, a suspension damping device and a flexible framework arranged on the flexible axle box and the suspension damping device;
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 beam and the end beam are connected at the end part at a right angle; the T-shaped beam comprises a cross beam and a second side beam; the end part of the cross beam is connected with the middle part of the second side beam at a right angle; the end part of the end beam is flexibly and fixedly connected with the end part of the second side beam through a flexible connecting member; the middle part of the first side beam is in lap joint with the lower surface of the end part of the cross beam through 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 a bearing mounting hole; the axle box body comprises a first boss, a second boss, a first extension part and a second extension part; the first boss and the second boss are symmetrically arranged along the symmetry axis of the axle box body; the first extending part is arranged on one side of the first protruding part far away from the second protruding part; the second extending part is arranged on one side of the second convex part far away from the first convex part; the saddle-shaped elastic device comprises an elastic pad, a side surface base plate and a saddle-shaped body; the side base 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 bulge and the upper end edge of the second bulge to form the bearing mounting hole; the two suspension damping device bearing platforms are respectively arranged on the top surface of the first extension part and the top surface of the second extension part of the axle box body;
the two suspension vibration damping devices are respectively fixed on the two suspension vibration damping device bearing platforms;
the suspension damping device comprises an inner spring, an outer spring and a spring cap; the inner spring is arranged inside the outer spring; the lower parts of the inner spring and 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.
2. The flexible truss bogie of claim 1, wherein 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 a first extending part of the axle box body and is fixedly connected with the first extending part;
the connecting shaft is arranged at the upper part of the first connecting seat;
the flexible frame bogie further comprises a radial mechanism; the radial mechanism is connected to the connecting shafts of the two flexible axle boxes at the diagonal positions in a crossed manner and is used for improving the rhombus change resistance of the flexible framework type bogie; the radial mechanism is formed by fixing a first connecting rod and a second connecting rod in a crossed manner; the crossing center of the first connecting rod and the second connecting rod is arranged opposite to the center of the flexible framework.
3. The flexible truss-type bogie of claim 1, wherein the L-beam further comprises a first mounting hole, a second attachment seat, and a first spherical center disk; a second connecting seat is arranged at one end of the end beam, which is 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 center plate;
the T-shaped beam further comprises a side beam connecting plate and a second spherical center plate; a second spherical small center plate 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.
4. The flexible truss-type bogie of claim 3, wherein the first side beam of the L-beam is interconnected with an end of the cross beam of the T-beam by a first mounting hole and a first spherical center disk; the end beam of the L-shaped beam is flexibly and 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 and fixedly connected with the flexible connecting member and the end beam of the L-shaped beam through the side beam connecting plate at the end part; one end of a cross beam of the T-shaped beam is provided with an elastic cushion block mounting hole;
the first spherical surface small center disc and the second spherical surface small center disc are in lap joint through the special-shaped abrasion pad;
the flexible framework further 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 motion of the first side beam and the cross beam.
5. The flexible framed bogie of claim 4, wherein the flexible connection member comprises a profiled connection bolt, an elastic ball 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 washer, the gasket and the nut and connects the parts; the special-shaped connecting bolt is used for connecting the second connecting seat, the side beam connecting plate, the elastic spherical hinge, the third connecting seat, the transition washer, the gasket and the nut and realizing flexible fixed connection;
the third connecting seat is of 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 enabling the special-shaped connecting bolt to penetrate through; the irregular flat plate is provided with three holes for fixedly connecting the third connecting seat with the 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 which is of an integral structure and is formed by vulcanizing the inside, the outside and rubber; the interior of the elastic spherical hinge is of a spherical structure or a conical structure; the outer part of the elastic spherical hinge is of a circular structure, a conical structure or an oval structure; the special-shaped connecting bolt is a variable cross-section connecting bolt, is connected with the elastic spherical hinge in an interference fit manner, and transmits force between the second side beam and the cross beam.
6. The flexible truss-type bogie of claim 5, wherein the flexible truss further comprises a hanger bracket;
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 center plate and a guide frame seat; the first wheel pair and the second wheel pair are provided with wheel pair bearings; the bearing mounting hole is used for inserting the wheel set bearing; the four groups of flexible axle boxes are arranged on the outer sides of two ends of the first wheel pair and the second wheel pair;
the middle part of the flexible framework is provided with an elastic side bearing and a lower center plate; the two sides of the flexible framework are provided with braking devices;
the middle part of the beam is provided with a lower center plate mounting hole for mounting a 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 part of the first side beam of the L-shaped beam and the lower part of 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 damping system through the guide frame seat; the hanging seat is used for installing a braking device.
7. The flexible frame-type bogie of claim 5, wherein the pedestal base is an integrally formed structure having a base portion and two leg portions; the two leg parts are respectively connected with the bottom surface of the seat part close to the end part; the two leg parts are symmetrically arranged along the symmetry axis of the guide frame seat, and a certain distance is reserved between the two leg parts;
two leg parts of the guide frame seat are erected on two sides of the saddle-shaped elastic device of the flexible axle box.
8. The flexible framed bogie of claim 7, wherein the suspension dampening device further comprises a bail and a locating pin; the hanging ring is arranged to connect the spring cap with the leg part of the guide frame seat; the positioning pin is used for fixing the spring cap or the guide frame seat; the positioning pin is arranged in the ring of the hanging ring.
9. A flexible frame bogie as claimed in any one of claims 1 to 8 in which the resilient pads are structural members of resilient rubber bonded to a metal plate; the elastic cushion is of a plane or splayed structure; the side base plate is a rubber structural part; the side base plate is in a rectangular, circular, oval, conical or polygonal structure.
10. A railway vehicle comprising a flexible frame bogie as claimed in any one of claims 1 to 9.
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 CN114056366B (en) | 2024-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN114056366B (en) | 2024-05-03 |
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