CN114162166A - Inner axle box bogie adopting novel flexible framework and permanent magnet direct drive motor - Google Patents
Inner axle box bogie adopting novel flexible framework and permanent magnet direct drive motor Download PDFInfo
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- CN114162166A CN114162166A CN202210037919.2A CN202210037919A CN114162166A CN 114162166 A CN114162166 A CN 114162166A CN 202210037919 A CN202210037919 A CN 202210037919A CN 114162166 A CN114162166 A CN 114162166A
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- 238000013461 design Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 claims 1
- 239000004636 vulcanized rubber Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
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- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
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- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005389 magnetism Effects 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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
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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
- B61F5/04—Bolster supports or mountings
- B61F5/10—Bolster supports or mountings incorporating fluid 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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/12—Bolster supports or mountings incorporating dampers
- B61F5/127—Bolster supports or mountings incorporating dampers with fluid as a damping medium
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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
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
- B61G9/06—Draw-gear combined with buffing appliances with rubber springs
Abstract
The invention discloses an inner axle box bogie adopting a novel flexible framework and a permanent magnet direct drive motor, wherein the framework is generally H-shaped and consists of two T-shaped beams and two sets of slewing bearings which are connected with the two T-shaped beams, only the freedom degree of transverse rotation is released, and the two T-shaped beams are connected approximately rigidly in other directions, so that the bogie can adapt to the unsmooth line to the maximum extent. The driving device adopts the permanent magnet synchronous motor to directly drive, is arranged on the left inner shaft box body and the right inner shaft box body, adopts the motor shaft suspension and direct drive mode, can avoid adopting a gear transmission structure, has simple structure, can obviously reduce the axle distance of the bogie, and is favorable for reducing the dead weight of the bogie.
Description
Technical Field
The invention relates to the technical field of bogies, in particular to an inner axle box bogie adopting a novel flexible framework and a permanent magnet direct drive motor.
Background
The existing bogie mainly comprises three large-piece type and integral framework type bogies, the three large-piece type bogie has strong capability of adapting to line distortion, but has loose structure, small diamond-resistant rigidity and lower running speed, while the integral framework type bogie can eliminate diamond deformation, but has poor capability of adapting to line distortion, needs to adapt to line distortion by soft one-line vertical deformation, and has higher requirements on one-line suspension and tracks. The existing partially flexible monolithic frame reduces the torsional stiffness between the two side beams, which is mainly achieved by rubber joints or sheet steel cross beams. For a flexible framework adopting a rubber joint, the rubber joint bears larger torque, and two side beams of the flexible framework adopting the rubber joint can only rotate for a certain angle and can not realize free torsion between the two side beams; the cross beam adopts a thin steel plate to realize a flexible framework, the rotation angle between two side beams is limited, and free torsion cannot be realized. For bogies where the two side beams cannot be freely twisted, the line adaptability and curve passing ability are limited.
The existing rail transit traction system mostly adopts an alternating current asynchronous motor traction system, the traction system comprises a gear box, and the traction system has the unfavorable characteristics of low transmission efficiency, high maintenance cost, high operation noise, environmental pollution caused by oil in the gear box and the like in the using process.
The bogie is divided into an outer axle box bogie and an inner axle box bogie according to the structural type of the axle box mounted on the wheel pair. Compared with an inner axle box bogie, the outer axle box bogie has the defects of long axle journal center distance, heavy structure, heavy self weight, high unsprung mass, large wheel rail action force, high traction energy consumption and the like.
Disclosure of Invention
The invention mainly solves the technical problem that aiming at the defects of the prior art, the invention provides an integral hinged framework which has no rhombus deformation, zero torsional rigidity, good curve trafficability and strong line twisting adaptability and a railway vehicle inner axle box bogie of a permanent magnet direct-drive traction system matched with the integral hinged framework, wherein the technology is mainly realized by a hinged cross beam device and a permanent magnet direct-drive motor.
In order to solve the technical problem, the invention provides an inner axle box bogie adopting a novel flexible framework and a permanent magnet direct drive motor, which comprises the following components:
a framework comprising two sets of longitudinally disposed box side beams and a set of transversely disposed articulated cross beam arrangements, wherein: the ends of the two side beams are connected with the wheel pair through a series of suspension devices, the middle parts of the two side beams are connected with a transversely arranged hinged cross beam device, the two side beams can freely do point-head torsion to each other around a transverse shaft or a Y shaft in a vehicle dynamics generalized coordinate through the hinged cross beam device, and the rigidity in other directions is kept to be large.
Preferably, the hinged beam device consists of an outer hinged beam, an inner hinged beam, a left slewing bearing, a right slewing bearing, four middle traction rubber piles, a traction seat, a transition piece and a fixing plate. The outer hinged beam is in a cylindrical design, a straight notch is formed in the upper portion of the outer hinged beam, a traction pin connecting device in the center of the vehicle body can conveniently stretch down to be matched with the traction seat, and meanwhile, a worker can conveniently stretch a hand into the hinged beam device for dismounting and mounting when dismounting and mounting; the inner side hinged beam is of a box body structure, an upper cover plate is not arranged, the traction seat is connected with the inner side hinged beam through four traction rubber piles, and central holes are formed in the lower end plate of the inner side hinged beam and the bottom of the outer side hinged beam, so that a central traction device does not move up and down to collide with the lower end plate of the inner side hinged beam, accumulated water in the beam device in rainy and snowy weather is convenient to discharge, and the traction seat conveniently extends out of the transverse hydraulic shock absorber mounting seat downwards; the left slewing bearing and the right slewing bearing in the hinged beam device are in the same size, adopt slewing bearings, are arranged between the inner side hinged beam end cover and the outer side hinged beam end cover on the left and right sides respectively, the outer ring of each slewing bearing is fixed with the outer side hinged beam end cover through screws, and the inner ring of each slewing bearing is fixed with the inner side hinged beam end cover plate through screws.
Preferably, the outer side hinged beam end cover of the hinged beam device is directly welded with the side beam to form a T-shaped beam, the inner side hinged beam is connected with the side beam through a transition piece, one end of the transition piece is connected with the side beam through welding, the other end of the transition piece penetrates through the outer side hinged beam end cover, the pivoting support and the inner side hinged beam end cover in a columnar shape, the transition piece is fastened inside the inner side hinged beam end cover through a fixing plate to form the T-shaped beam, and the fixing plate is used for fixing the transition piece and the pivoting support on the inner side hinged beam end plate. The two T-shaped beams are connected through a slewing bearing with a certain span at the left and the right, so that the flexible framework still keeps an integral framework without rhomboid deformation, and the torsional rigidity between the beams at the two sides is zero, and free point-head torsional motion can be performed. The two rotary supports adopt bearings with the same inner diameter and outer diameter, and are fastened with the inner and outer hinged beam end plates through screws, so that the two rotary supports are convenient to detach.
The wheel pair comprises an axle, wheels and end covers, wherein the wheels and the end covers are installed at two ends of the axle.
The primary suspension device comprises an upper bearing saddle, a splayed rubber pile, a lower bearing saddle, an upper shaft box body, a bearing, a lower shaft box body and a rubber sealing ring.
The foundation brake device comprises four unit tread brake devices, and the unit tread brakes are hung on the side beams of the framework through three points.
The secondary suspension device comprises a left air spring, a right air spring, a vertical hydraulic damper, a transverse stop and a transverse hydraulic damper which are symmetrically arranged.
The permanent magnet direct-drive driving system is characterized in that a permanent magnet direct-drive motor comprises a stator, a rotor, a motor shell and a torque balancing rod, the rotor is fixed on an axle through a connecting key, so that the rotor directly drives the axle to rotate, the motor shell is divided into an upper shell and a lower shell which are symmetrically arranged, and two ends of the motor shell are respectively fixed with extending parts of axle box bodies on two sides through bolts.
Preferably, the inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor is arranged in an inner axle box mode, the framework is supported on the inner side of the wheel pair, the length of an axle can be effectively shortened, the unsprung mass of the bogie is reduced, the dead weight of the bogie is reduced, the abrasion of a curve wheel rail is effectively reduced, and the curve passing performance is improved.
Preferably, the torque balancing rod consists of a rod piece and spherical hinges at two sides, one end of the torque balancing rod is connected with the traction motor shell, the other end of the torque balancing rod is connected with the side beam, and the torque balancing rod provides counter torque for the traction motor and is balanced with the torque generated when the traction motor works.
Preferably, an air spring mounting seat is mounted on the upper end face of the side beam extending beam, and a transverse hydraulic shock absorber mounting seat is mounted on the lower end face of the side beam extending beam.
Preferably, a transverse stop is mounted inside the inner hinged beam end plate of the hinged beam device.
Compared with the prior art, the invention has the advantages that:
1. the bogie frame belongs to an H-shaped integral frame and is an integral stable structure, the flexible frame can bear forces in three directions and torques in two directions by virtue of the hinged cross beam device, namely, the balance of the forces in the three directions and the torques in the two directions can be carried out, only the freedom degree of transverse rotation is released, the load balancing performance of the bogie is good, the stability is high, the safety of passing through a curve is high, the capability of adapting to line distortion is strong, and the running speed of the bogie can be increased on various lines. And the bogie has no rhomboid deformation and zero torsional rigidity, and can simultaneously have excellent running stability and curve trafficability characteristic, thereby fundamentally solving the contradiction between the running stability and the curve trafficability characteristic of the traditional bogie.
2. By using the bogie frame, the two side beams of the bogie frame can easily generate relative torsional motion around the transverse shaft, so that the capability of the corresponding bogie for adapting to the unsmooth line is greatly enhanced, the flexible frame adopts a traction rubber pile, the arrangement of a traction pull rod is omitted, and the traction rubber pile has the advantages of light weight and good wear resistance. The mode of central traction of the traction rubber pile is adopted, the traction rubber pile is more suitable for compact power bogies, the traction motor is conveniently arranged on the bogie, and the traction rubber pile can be matched with bogies of different projects, so that the research and development cost of the bogie is reduced.
3. The bogie frame is innovative in structure, adopts the slewing bearing, has a small slewing angle, has good bearing capacity in the axial direction and the radial direction, is good in economic performance, and is free of maintenance in the using process.
4. The bogie frame adopts the permanent magnet direct drive motor to replace the traditional asynchronous motor driving system, saves the traditional gear box, greatly improves the efficiency of the whole bogie, and greatly improves the aspects of the whole reliability, the noise maintenance cost and the like.
5. The bogie frame adopts a mode of embedding the axle box, effectively shortens the length of an axle and reduces the unsprung mass of the bogie, thereby reducing the dead weight of the bogie, effectively reducing the abrasion of a curve wheel rail and improving the curve passing performance.
Drawings
Fig. 1 is a schematic structural diagram of an inner axle box bogie in embodiment 1, which adopts a novel flexible framework and a permanent magnet direct drive motor;
FIG. 2 is a structural plan view of an inner axle box bogie in embodiment 1, which adopts a novel flexible framework and a permanent magnet direct drive motor;
FIG. 3 is a structural sectional view A-A of an inner axle box bogie in embodiment 1, which adopts a novel flexible framework and a permanent magnet direct drive motor;
fig. 4 and 5 are schematic structural views of the articulated beam device according to embodiment 1;
FIG. 6 is a schematic structural view of a framework in example 1;
FIG. 7 is a schematic structural view of a suspension system according to embodiment 1;
fig. 8 is a structural sectional view B-B of the permanent magnet direct drive motor in embodiment 1;
the labels in the figure are: 1-wheel pair, 11-wheel, 12-axle, 2-frame, 21-left side beam, 211-overhanging beam, 22-hinged cross beam device, 221-outside hinged beam, 222-inside hinged beam, 223-left pivoting support, 224-right pivoting support, 225-traction seat, 226-laminated traction rubber pile, 227-fixing plate, 23-right side beam, 24-transition piece, 3-primary suspension device, 31-splayed rubber pile, 32-bearing, 33-upper shaft box body, 34-lower shaft box body, 35-splayed rubber pile upper cover plate, 36-splayed rubber pile lower cover plate, 37-inner side baffle, 38-outer side baffle, 39-rubber ring, 4-tread base brake device, 5-secondary suspension device, 51-transverse stop, 52-transverse hydraulic damper, 53-vertical hydraulic damper, 54-air spring, 6-permanent magnetic direct drive device, 61-motor shell, 62-stator, 63-rotor and 64-torque balance rod.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
As shown in fig. 1 to 8, the present invention provides an inner axle box bogie using a novel flexible frame and a permanent magnet direct drive motor, comprising:
wheel sets 1, wherein each wheel set 1 comprises two wheels 11 and an axle 12;
the framework 2, which is an H-shaped integral framework, includes two longitudinally arranged left and right side beams 21, 23 and a set of transversely arranged articulated cross beam devices 22, wherein: the articulated cross beam device 22 consists of an outer articulated beam 221, an inner articulated beam 222, a left slewing bearing 223, a right slewing bearing 224, four middle traction rubber piles 226 and a traction seat 225, two end parts of a left side beam 21 and a right side beam 23 are connected with the wheel set 1 through a series of suspension devices 3, the articulated cross beam device 22 which is transversely arranged is connected between the middle parts of the left side beam 21 and the right side beam 23, and the left side beam 21 and the right side beam 23 can rotate around the mutual free point of the central line of the articulated cross beam device 22 by means of the articulated cross beam device 22.
The primary suspension device 3 is arranged on the inner side of the wheel pair 1 and comprises a splayed rubber stack 31, a bearing 32, an upper shaft box body 33, a lower shaft box body 34, a splayed rubber stack upper cover plate 35, a splayed rubber stack lower cover plate 36, an inner side baffle 37, an outer side baffle 38 and a rubber ring 39.
The foundation brake device comprises four tread foundation brake devices 4 which are respectively arranged on the inner side of a bogie, and mounting seats of the foundation brake devices are arranged on a side beam web plate and a bottom plate of the bogie.
The secondary suspension device 5 comprises two air springs 54 which are arranged in bilateral symmetry, a vertical hydraulic shock absorber 53 and two transverse stoppers 51 which are arranged in the hinged cross beam device 22, wherein one end of the transverse hydraulic shock absorber 52 is connected with the lower end of a traction base 225, and the other end is connected with a lower bottom plate of a side beam.
The permanent magnet direct drive driving device 6 comprises a stator 62, a rotor 63, a motor shell 61 and a torque balance rod 64.
Specifically, a transition piece 24 is arranged between the outer hinged beam 221 and the left side beam 21 of the hinged cross beam device 22, one end of the transition piece 24 is connected with the left side beam 21 through welding, the other end of the transition piece 24 is a cylinder and extends into the hinged device through the outer hinged beam 221, the left pivoting support 223 and the inner hinged beam 222, the transition piece is fixed inside an end cover of the inner hinged beam 222 through a fixing plate 227, the inner hinged beam 222 extends into the outer hinged beam 221, the outer hinged beam 221 and the inner hinged beam 222 are connected through pivoting supports with a certain span on the left and the right, the outer hinged beam 221 and the inner hinged beam 222 can realize free torsion through the left pivoting support 223 and the right pivoting support 224, namely the torsional rigidity between the left side beam and the right side beam is zero.
The outer hinged beam 221 of the hinged beam device 22 is designed in a cylindrical surface mode, a straight notch is formed in the upper portion of the outer hinged beam 221, a traction pin connecting device in the center of the vehicle body can conveniently extend downwards to be matched with the traction seat 225, meanwhile, during dismounting, workers can conveniently extend hands into the hinged beam device 22 for dismounting, holes are formed in the lower portions of the outer hinged beam 221 and the inner hinged beam 222, and therefore the traction seat 225 can conveniently extend downwards out of a mounting seat of the transverse hydraulic shock absorber 52 and accumulated water in the hinged beam device 22 can be conveniently discharged through rainy and snowy weather; the inner hinged beam 222 is of a box structure and is not provided with an upper cover plate, the traction seat 225 and the inner hinged beam 222 are connected through four laminated traction rubber piles 226, and a hole is formed in the center of the lower end plate of the inner hinged beam 222 so as to prevent the central traction device from colliding with the lower end plate of the inner hinged beam 222 during vertical displacement; the slewing bearing in the hinged beam device 22 is of the same size, the left side and the right side of the slewing bearing are respectively arranged between the end plate of the inner hinged beam 222 and the end plate of the outer hinged beam 221, the outer ring of the slewing bearing is fixed with the end plate of the outer hinged beam through screws, and the inner ring of the slewing bearing is fixed with the end plate of the inner hinged beam 222 through screws. During assembly, the outer hinged beam 221 and the right side beam 23 are welded to form a T-shaped beam, the inner hinged beam 222 is connected with the left side beam 21 through a transition piece 24 to form another T-shaped beam, the two T-shaped beams are connected through a left-right pivoting support with a certain span, the inner hinged beam 222 extends into the outer hinged beam 221 after being provided with a laminated traction rubber stack 226 and a traction base 225, the two T-shaped beams are connected through the pivoting support, the outer ring of the pivoting support is fixed with the outer hinged beam 221 through a screw, the inner ring of the pivoting support is fixed with the inner hinged beam 222 through a screw, after assembly, the outer hinged beam 221 is connected with the left side beam 21 through the transition piece 24, one end of the transition piece 24 is welded with the left side beam 21, and the other end of the transition piece extends into the inner hinged beam 222 and is fixed through a fixing plate 227. The framework has no rhomboid deformation, and the torsional rigidity between the beams at the two sides is zero, so that the free point-head torsional movement can be carried out.
In use, when the right side beam 23 is subjected to a rightward lateral force, the right side beam 23 will have a rightward pulling force on the outer hinge beam 221, the force is transmitted to the outer ring of the slewing bearing through the end face of the outer hinge beam 221, the slewing bearing transmits the force to the inner ring through the structure thereof, the inner ring transmits the force to the end plate of the inner hinge beam 222, the force is transmitted to the transition piece 24 through the fixing plate 227 through the end plate at the other end of the inner hinge beam 222, and the transition piece 24 finally transmits the force to the left side beam 21. When the left side member 21 receives a lateral force to the left, the transmission path of the lateral force balance is opposite to the above path.
When the articulated cross beam device 22 is used, when the two side beams are subjected to vertical force of a vehicle body, two forces can generate bending moment on the articulated cross beam device 22, and because the articulated cross beam device 22 is provided with the left slewing bearing 223 and the right slewing bearing 224 which have a certain transverse distance in the transverse direction, corresponding force and bending moment can be generated by the left slewing bearing and the right slewing bearing to be balanced with the force and the bending moment. The use of the articulated beam arrangement 22 also allows for balancing when the side beams are subjected to longitudinal forces. Therefore, the flexible framework can bear forces in three directions and torques in two directions, only the degree of freedom of the flexible framework in rotating around the transverse shaft is released, no rhomboid deformation exists, and the torsional rigidity between the two side beams is zero, namely the two side beams can freely do point-to-point torsional motion, so that the bogie adopting the flexible framework has excellent load-sharing performance, line adaptability, curve trafficability and operation stability, and the contradiction between the operation stability and the curve trafficability can be fundamentally solved.
The primary suspension device 3 comprises a splayed rubber stack 31, a bearing 32, an upper shaft box body 33, a lower shaft box body 34, a splayed rubber stack upper cover plate 35, a splayed rubber stack lower cover plate 36, an inner side baffle 37, an outer side baffle 38 and a rubber ring 39, wherein the inner side baffle 37 and the outer side baffle 38 are installed on two transverse sides of the bearing 32 and used for fixing the bearing 32, the inner side baffle 37 and the outer side baffle 38 are installed on the axle 12, the splayed rubber stack 31 is connected with a side beam through the splayed rubber stack upper cover plate 35 and connected with the upper shaft box body 33 through the splayed rubber stack lower cover plate 36, the upper shaft box body 33 is connected with the lower shaft box body 34 through bolts and nuts, and is also connected with a motor shell 61 inwards through bolts and nuts and used for fixing the motor shell 61.
The secondary suspension device 5 comprises two air springs 54 which are symmetrically arranged left and right, a vertical hydraulic shock absorber 53 is arranged on the end plate of the side beam extension beam 211 left and right, two transverse stoppers 51 are arranged in the hinged cross beam device 22, one end of a transverse hydraulic shock absorber 52 is connected with the lower end of a traction seat 225, and the other end of the transverse hydraulic shock absorber is connected with the lower bottom plate of the side beam.
Permanent magnetism directly drives drive arrangement 6 and includes stator 62, rotor 63, motor housing 61 and moment of torsion balancing pole 64, rotor 63 passes through the connector key and installs on axletree 12 for rotor 63 directly drives axletree 12 and rotates, motor housing 61 divide into the casing of two upper and lower symmetric arrangements, and the axle box body internal extension part that stretches out two semicircle rings and both sides respectively at its both ends passes through the bolt fastening, and wherein moment of torsion balancing pole 64 is used for balanced motor, and moment of torsion balancing pole 64 both ends are rubber ball pivot elastic joint, and the mount pad on the motor housing 61 is connected to one end, and the I-beam mount pad that the curb girder inwards stretches out is connected to one end.
The bogie is arranged at the inner side of the framework 2 by adopting an arrangement mode of arranging the axle boxes in the bogie, so that the length of an axle 12 is effectively shortened, the unsprung mass and the dead weight of the bogie are reduced, and the curve passing performance is improved; by adopting the hinged cross beam device 22, the bogie has no rhomboid deformation and zero torsional rigidity, and has excellent running stability and curve trafficability; by adopting the permanent magnetic direct drive driving device 6, the traditional gear box can be saved, the efficiency of the whole vehicle is greatly improved, and the aspects of the whole reliability, the noise maintenance cost and the like are greatly improved; by adopting the primary suspension device 3, the horizontal positioning rigidity and the vertical suspension rigidity between the framework 2 and the wheel set 1 can be met; the secondary suspension device 5 can provide proper vertical suspension rigidity and horizontal shearing rigidity for the vehicle body and the bogie, meets the vertical deflection requirement of the empty and heavy vehicle, and has the advantages of no need of installing an anti-rolling torsion bar, simple structure and low cost.
The invention also provides a non-power bogie, which is still protected by the invention by removing the permanent magnetic direct drive driving device 6.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An inner axle box bogie adopting a novel flexible framework and a permanent magnet direct drive motor is characterized by comprising the following components:
the wheel sets (1), each wheel set (1) comprises two wheels (11) and an axle (12);
the framework (2) consists of two T-shaped beams and two sets of slewing bearings for connecting the two T-shaped beams, and specifically comprises two longitudinally arranged left side beams (21), two longitudinally arranged right side beams (23) and a set of transversely arranged hinged cross beam devices (22), wherein: articulated crossbeam device (22) are by outside articulated beam (221), inboard articulated beam (222), left slewing bearing (223), right slewing bearing (224), four traction rubber piles (226) and traction seat (225) constitute in the middle, and two tip of left side roof beam (21) and right side roof beam (23) are passed through a linkage of linkage (3) and are linked to each other with wheel pair (1), connect transversely arranged's articulated crossbeam device (22) between both middles of left side roof beam (21) and right side roof beam (23), left side roof beam (21) and right side roof beam (23) rely on articulated crossbeam device (22) can do around the mutual free point head rotation of articulated crossbeam device (22) central line.
The wheel set comprises a primary suspension device (3), wherein the primary suspension device (3) is arranged on the inner side of a wheel set (1) and comprises a splayed rubber stack (31), a bearing (32), an upper shaft box body (33), a lower shaft box body (34), a splayed rubber stack upper cover plate (35), a splayed rubber stack lower cover plate (36), an inner side baffle (37), an outer side baffle (38) and a rubber ring (39).
The foundation brake device comprises four groups of tread foundation brake devices (4) which are respectively arranged on the inner side of a bogie, and mounting seats of the foundation brake devices are arranged on a side beam web plate and a bottom plate of the bogie.
The secondary suspension device (5) comprises two air springs (54), a vertical hydraulic shock absorber (53), a transverse stop (51) and a transverse hydraulic shock absorber (52) which are arranged in bilateral symmetry, wherein the two transverse stops (51) are arranged in a hinged cross beam device (22), one end of the transverse hydraulic shock absorber (52) is connected with the lower end of a traction seat (225), and the other end of the transverse hydraulic shock absorber is connected with a lower bottom plate of a side beam.
The permanent-magnet direct-drive driving device (6) comprises a stator (62), a rotor (63), a motor shell (61) and a torque balancing rod (64), wherein the torque balancing rod (64) is used for providing torque for balancing the work of the motor.
2. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor as claimed in claim 1 is characterized in that the framework (2) is generally H-shaped and consists of two T-shaped beams and two sets of slewing bearings connecting the two, and the concrete is as follows: a transition piece (24) is arranged between an inner side hinged beam (222) of the hinged cross beam device (22) and the left side beam (21), one end of the transition piece (24) is fixedly connected with the left side beam (21), the other end of the transition piece (24) is columnar and penetrates through an end cover of the outer side hinged beam (221), a left rotary support (223) and an end plate of the inner side hinged beam (222) to penetrate into the hinged device, and the transition piece (24) is fastened inside the end cover of the inner side hinged beam (222) through a fixing plate (227), so that the left side beam (21) forms a T-shaped beam through the transition piece (24) and the inner side hinged beam, the end plate of the outer side hinged beam (221) and the right side beam (23) form another T-shaped beam through fixed connection, and the framework comprises two T-shaped beams and a left rotary support and a right rotary support which are connected with the T-shaped beams. The inner side hinged beam (222) extends into the outer side hinged beam (221), the outer side hinged beam (221) and the inner side hinged beam (222) are connected through a left slewing bearing and a right slewing bearing with a certain span, the outer side hinged beam (221) and the inner side hinged beam (222) can realize mutual free torsion through the left slewing bearing (223) and the right slewing bearing (224), namely the torsion rigidity between the left side beam and the right side beam is extremely low, and free point-head torsion motion can be realized.
3. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor as recited in claim 1, characterized in that the outer hinged beam (221) of the hinged beam device (22) adopts a cylindrical design, a straight notch is formed on the upper part of the outer hinged beam (221) to facilitate the extension of a vehicle body center towing pin connecting device to be matched with the towing seat (225) and facilitate the disassembly and assembly of workers, holes are formed on the lower parts of the outer hinged beam (221) and the inner hinged beam (222) to facilitate the downward extension of the towing seat (225) out of the mounting seat of the transverse hydraulic shock absorber (52) and the drainage of accumulated water in the hinged beam device (22) in rainy and snowy weather; the inner side hinged beam (222) is of a box body structure with an upward opening, and the traction seat (225) is connected with the inner side hinged beam (222) through four laminated traction rubber piles (226); the left and right pivoting supports in the hinged beam device (22) are in the same size, are arranged between the end plate of the inner hinged beam (222) and the end cover of the outer hinged beam (221) on the left and right sides respectively, the outer rings of the left and right pivoting supports are connected with the end cover of the outer hinged beam (221) through bolts, and the inner rings of the left and right pivoting supports are connected with the end cover plate of the inner hinged beam (222) through bolts. During assembly, the outer hinged beam (221) is fixedly connected with the right side beam (23) to form a T-shaped beam, the inner hinged beam (222) forms another T-shaped beam through the transition piece (24) and the left side beam (21), the inner hinged beam (222) extends into the inner part of the outer hinged beam (221) after being provided with the laminated traction rubber pile (226) and the traction base (225), the inner hinged beam and the outer hinged beam are connected through the slewing bearing, the end part of the outer hinged beam (221) is provided with an outer hinged beam end cover after the slewing bearing is arranged, the outer hinged beam (221) end cover is composed of two semicircular cover plates, and the outer hinged beam (221) sleeve and the slewing bearing outer ring are fixedly connected through bolts.
4. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor as claimed in claim 1, wherein the permanent magnet direct drive driving device (6) is mainly composed of a rotor (63) formed by a permanent magnet and is installed on the axle (12) through a connecting key, so that the rotor (63) directly drives the axle (12) to rotate when in operation, the motor housing (61) is divided into an upper shell and a lower shell which are symmetrically arranged, the stator and the end part of the mounting base housing thereof are installed on the left inner axle box body and the right inner axle box body, and the end part of the housing connects the two semicircular split housings through four bolts. The permanent magnet motor provides counter torque during operation through torque balancing pole (64), and torque balancing pole (64) one end carries out the fastening connection with permanent magnet motor shell (61) torque balancing pole seat, and the other end and framework curb girder torque balancing pole seat fastening connection, and wherein torque balancing pole (64) horizontal symmetry arranges about, and each torque balancing pole contains a pull rod body and two ball hinges.
5. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor according to claim 1 is characterized in that the splayed rubber pile (31) is fixedly connected with an upper cover plate (35) of the splayed rubber pile and a lower cover plate (36) of the splayed rubber pile through vulcanization, the axle box body is of a split structure and comprises an upper axle box body (33) and a lower axle box body (34), the upper axle box body (33) and the lower cover plate (36) of the splayed rubber pile realize longitudinal and transverse positioning through a groove and a stop block, a groove is formed in the bottom of the lower axle box body (34), and the upper axle box body (33) and the lower axle box body (34) are fixedly connected through bolts and nuts.
6. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor as claimed in claim 1 is characterized in that a laminated traction rubber pile (226) is adopted, the laminated traction rubber pile (226) is arranged inside an articulated cross beam device, the structure is compact in the longitudinal direction, the axle distance is reduced, the arrangement of the traction motor on the bogie is facilitated, and the structure is simpler and lighter.
7. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor as claimed in claim 1 is characterized in that the vertical suspension of the secondary suspension device (5) comprises two air springs (54) which are arranged in bilateral symmetry, and vertical hydraulic shock absorbers (53) are arranged on end plates of the side beam overhanging beam (211) in bilateral symmetry.
8. An internal axlebox bogie with new flexible frame and permanent magnet direct drive motor according to claim 1, characterized in that the two lateral stops (51) of the secondary suspension device (5) are metal plates of vulcanized rubber, arranged on the inside of the end plate of the inner hinge beam (222) of the articulated cross beam device (22) to control the lateral displacement between the car body and the bogie to provide proper stiffness for good lateral running performance.
9. The inner axle box bogie adopting the novel flexible framework and the permanent magnet direct drive motor as claimed in claim 1, wherein one end of the transverse hydraulic damper (52) of the secondary suspension device (5) is connected with a transverse hydraulic damper mounting seat extending downwards from a traction seat (225), and the other end is connected with a transverse hydraulic damper extending from a bottom plate of the side beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037919.2A CN114162166B (en) | 2022-01-13 | 2022-01-13 | Inner axle box bogie adopting novel flexible framework and permanent magnet direct drive motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037919.2A CN114162166B (en) | 2022-01-13 | 2022-01-13 | Inner axle box bogie adopting novel flexible framework and permanent magnet direct drive motor |
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| CN114162166A true CN114162166A (en) | 2022-03-11 |
| CN114162166B CN114162166B (en) | 2024-02-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116654095A (en) * | 2023-07-28 | 2023-08-29 | 昆山美仑工业样机有限公司 | New energy automobile frame based on motor suspension structure and stability enhancement method thereof |
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Cited By (2)
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| CN116654095A (en) * | 2023-07-28 | 2023-08-29 | 昆山美仑工业样机有限公司 | New energy automobile frame based on motor suspension structure and stability enhancement method thereof |
| CN116654095B (en) * | 2023-07-28 | 2023-10-13 | 昆山美仑工业样机有限公司 | New energy automobile frame based on motor suspension structure and stability enhancement method thereof |
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