CN113928362B - Framework device for built-in non-power bogie of axle box of high-speed motor train unit - Google Patents
Framework device for built-in non-power bogie of axle box of high-speed motor train unit Download PDFInfo
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- CN113928362B CN113928362B CN202111330958.3A CN202111330958A CN113928362B CN 113928362 B CN113928362 B CN 113928362B CN 202111330958 A CN202111330958 A CN 202111330958A CN 113928362 B CN113928362 B CN 113928362B
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- 238000003466 welding Methods 0.000 claims abstract description 65
- 238000005242 forging Methods 0.000 claims abstract description 53
- 230000007704 transition Effects 0.000 claims abstract description 47
- 239000000725 suspension Substances 0.000 claims abstract description 15
- 241000271559 Dromaiidae Species 0.000 claims abstract 2
- 239000006096 absorbing agent Substances 0.000 claims description 35
- 230000035939 shock Effects 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000005096 rolling process Methods 0.000 claims description 18
- 238000003801 milling Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910001095 light aluminium alloy Inorganic materials 0.000 claims description 3
- 230000001965 increasing effect Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—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
- B61F5/307—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating fluid springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—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
- B61F5/308—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating damping devices
-
- 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)
- Vehicle Body Suspensions (AREA)
Abstract
The utility model provides a high-speed EMUs axle box built-in frame device for non-power bogie belongs to rail vehicle bogie frame device field, and it includes: the combined type side beam comprises a box-shaped welding side beam and a forging side beam, a forging cross beam, a lightweight integrated mounting seat, a transverse stop, a side beam brake cylinder hanging seat, a rotating arm positioning seat, two cross beam brake cylinder hanging seats and a traction pull rod seat; the two combined side beams and the two forged cross beams form a framework. According to the invention, by virtue of the characteristics of high structural strength and small thickness of the forged side beam, the cantilever quality and the occupied longitudinal space when the side beam wing-shaped transition seat extends outwards are greatly reduced, so that the structural strength is ensured, the functions of reducing the weight at the far end and increasing the layout space of a primary suspension plate spring and a clamp brake unit are realized, the welding workload is obviously reduced, the thermal deformation area is welded, and the mechanical strength and the quality of a welding seam are improved.
Description
Technical Field
The invention belongs to the field of railway vehicle bogie frame devices, and particularly relates to a frame device for a built-in non-power bogie of an axle box of a high-speed motor train unit.
Background
The bogie frame is one of key components on the rail transit vehicle, which are responsible for bearing the weight of the vehicle body and transmitting acting force between the wheel rail and the vehicle body; the framework is used for bearing and transmitting force and simultaneously bearing the tasks of installing components such as wheel sets, traction devices, primary suspension, secondary suspension, shock absorbers, brake units and the like, so that other components can be well realized, and interference is avoided under certain deflection; the frame must therefore have good strength, rigidity and stability so that the rail transit vehicle can run quickly, flexibly, safely, stably and smoothly along the rail.
The traditional framework is generally in an external axle box form of an axle box mechanism positioned outside a wheel, and a cantilever axle box with a rubber cantilever node is adopted, so that the framework has large volume and heavy weight, has poor adaptability to continuous large-angle torsion road sections of a track line, and the framework has the mass which belongs to the mass among springs, so that the load born by a wheel set and a vehicle body can be increased sharply due to the larger framework weight when the train runs at a high speed, the wheel track is worn greatly, the running maintenance cost is high, and the running stability and the comfort of the vehicle are influenced. Compared with a wide and heavy axle box external framework, the axle box internal framework has the advantages of small volume and light weight, but the side beams of the framework are positioned on the inner sides of two wheel pairs and limited by the inner side distance of the wheel pairs, the transverse space for arranging auxiliary equipment such as a traction center, a braking mechanism and the like is extremely intense, the space for arranging the auxiliary equipment arranged on the framework is compact, the assembly and maintenance are difficult, the assembly space cannot be reserved for newly added functional parts, and the axle box internal framework has weaker bearing capacity on diamond-shaped loads, so that the conventional reduction design is difficult to achieve reasonable balance among larger air spring spacing size, higher structural strength of the framework, better vibration reduction and overall weight of the framework.
For a high-speed motor train unit train with the design speed exceeding 400 km per hour, the stress condition of a bogie frame is more complex, and therefore, due to the consideration of structural strength and safety, the bogie of the existing high-speed motor train unit train adopts an external box type all-welded frame of an axle box, which has the advantages of large size and weight of the whole frame, multiple welding lines, serious welding deformation and poor flexibility. And the axle box built-in framework with small volume and light weight is difficult to be applied to a high-speed motor train unit train with the design speed exceeding 400 km per hour.
Disclosure of Invention
In order to solve the problems that the existing bogie frames for high-speed motor train units with the design speed exceeding 400 km all adopt the box-type all-welded frameworks with high structural strength, the frameworks face the problems of large size and weight of the whole framework, large number of welding seams, serious welding deformation, large adjustment difficulty, poor flexibility of the frameworks, severe wheel rail abrasion and the like, the existing weight reduction design of the other axle box built-in frameworks is difficult to achieve reasonable balance among the structural strength of the higher frameworks, better vibration reduction and diamond load bearing capacity and the whole mass of the lighter frameworks, and the space between air springs and the space between the internal gaps of the whole frameworks are small, so that the transverse layout space of auxiliary equipment such as traction, braking and the like is too compact, and the assembly and maintenance are difficult, and the assembly space cannot be reserved for newly added functional pieces.
The technical scheme adopted for solving the technical problems is as follows:
a frame device for a built-in non-power bogie of an axle box of a high-speed motor train unit comprises: the combined type side beam comprises a box-shaped welding side beam and a forging side beam, a forging cross beam, a lightweight integrated mounting seat, a transverse stop, a side beam brake cylinder hanging seat, a rotating arm positioning seat, two cross beam brake cylinder hanging seats and a traction pull rod seat; two combined side beams and two forging cross beams form a framework;
The middle part of the box-shaped welding side beam protrudes outwards, and an air spring mounting seat on the box-shaped welding side beam is arranged at the position where the middle part protrudes outwards, and the axis of a central hole of the air spring mounting seat is vertically upwards; a series of vertical shock absorber mounting seats are arranged on the inner side wall of one end of the forged side beam, a series of suspension plate spring mounting seats are arranged on the lower side wall of the end, an L-shaped transition connecting plate is arranged at the other end of the forged side beam, and the forged side beam is fixedly connected with the end parts of the side beam wing-shaped transition seats of the box-shaped welding side beam through the L-shaped transition connecting plate in a welding way;
The light integrated mounting seat is fixedly connected to the outer side wall of the middle part of the box-shaped welding side beam, the transverse stop is fixedly connected to the inner side wall of the middle part of the box-shaped welding side beam, the side beam brake cylinder hanging seat is fixedly connected to the inner side wall of the side beam wing-shaped transition seat, the rotating arm positioning seat is fixedly connected to the lower side wall of the side beam wing-shaped transition seat, the two beam brake cylinder hanging seats are fixedly connected to the outer side wall of the middle part of the two forging beam tubes in a one-to-one correspondence manner, the traction pull rod seat is fixedly connected to the lower side wall of one end of the forging beam tube, and the two traction pull rod seats are rotationally symmetrical by taking the center of the framework as the center;
The two forging crossbeams are fixedly connected to the inner side wall of the middle part of the box-shaped welding side beam through transition connecting plates at two ends, the two forging crossbeams are positioned at two sides of the transverse stop, the upper side wall of one transition connecting plate of each forging crossbeam is provided with a transverse damper mounting seat, and the two transverse damper mounting seats are rotationally symmetrical with the center of the framework as the center.
The traction rod seat comprises a half integrated traction rod seat and a half independent traction rod seat, the half integrated traction rod seat and the transition connecting plate are integrally formed through forging and milling processes, and the half independent traction rod seat is welded on the beam tube; each forging beam forms a beam mechanism together with a corresponding beam brake cylinder hanging seat fixedly connected with the forging beam and a corresponding traction pull rod seat fixedly connected with the forging beam; each combined side beam forms a side beam mechanism together with a corresponding light-weight integrated mounting seat fixedly connected to the outer side wall of the side beam and two transverse stops, two side beam brake cylinder hanging seats and two rotating arm positioning seats fixedly connected to the inner side wall of the side beam.
The light integrated mounting seat is fixedly connected to the outer side wall of the middle part of the box-shaped welding side beam, which protrudes outwards, through a bolt, and the transverse stop is fixedly connected to the inner side wall of the middle part of the box-shaped welding side beam through a bolt.
The connecting section of the transition connecting plate and the transition connecting section of the forged side beam is an outward-tilting cantilever, and the outward-tilting cantilever extends obliquely to the outside of the side beam in a horizontal plane; the first included angle formed by the side wall of the camber cantilever and the outer end face of the wing-shaped transition seat of the side beam is beta, the value range of the angle of the first included angle beta is 3-9 degrees, and the optimal value is 5 degrees; the two forging side beams are positioned at the same longitudinal end part of the combined side beam, the second included angle formed by the outer end surfaces of the wing-shaped transition seats of the side beams is alpha, the value range of the angle of the second included angle alpha is 6-18 degrees, and the optimal value of the angle of the second included angle is 10 degrees; the base part of the side beam brake cylinder hanging seat is cylindrical, the value range of a third included angle gamma formed between the rotation axis of the base part and the transverse central line s of the combined side beam is 3-8 degrees, and the optimal value of the third included angle gamma is 5 degrees.
The light integrated mounting seat comprises an integrally formed anti-side rolling torsion bar mounting seat, an anti-meandering shock absorber mounting seat and a secondary vertical shock absorber mounting seat; the overlooking structure of the light integrated mounting seat is triangular, and the connecting line of the barycenters of the shaft seats of the anti-side rolling torsion bar mounting seat and the secondary vertical shock absorber mounting seat is parallel to the combined side beam; an anti-hunting damper mounting seat positioned at the other vertex of the triangular structure, the opening of which faces the outside of the combined side beam; the opening of the anti-rolling torsion bar mounting seat is parallel to the combined side beam; the opening direction of the secondary vertical shock absorber mounting seat is parallel to the rotation axis of the forging cross beam; the rotation axis of the self-installation shaft seat of the anti-rolling torsion bar installation seat and the rotation axis of the self-installation shaft seat of the secondary vertical shock absorber installation seat are parallel to the axis direction of the shaft hole of the air spring installation seat; the anti-meandering shock absorber mounting seat is provided with a rotating axis of the shaft seat, an axis of the air spring mounting seat and a rotating axis of the forging cross beam, and the rotating axis, the air spring mounting seat and the rotating axis are perpendicular to each other in different planes.
The lightweight integrated mounting seat is formed by integrally machining lightweight aluminum alloy materials through forging and milling processes, and a lightening hole is formed in the middle of the lightweight integrated mounting seat.
The beneficial effects of the invention are as follows: the cross section of the box-shaped welding side beam protruding outwards from the middle of the box-shaped welding side beam is gradually increased from the two ends to the middle of the box-shaped welding side beam, the capacity of the whole framework for resisting diamond load can be enhanced through the variable cross section design, the distance value of the air springs on the two combined side beams can be effectively increased, the inter-spring mass extends along the transverse extension of the framework, the arrangement space for expanding auxiliary equipment such as the original compact air springs and traction centers is expanded, and the torque damping value between the two anti-side-rolling torsion bar seats of the lightweight integrated mounting seat is improved.
The forged side beam is welded and fixedly connected with the end part of the side beam wing-shaped transition seat of the box-shaped welding side beam through the L-shaped transition connecting plate, so that the cantilever quality and the occupied longitudinal space when the side beam wing-shaped transition seat extends outwards originally are greatly reduced by virtue of the characteristics of high structural strength and small thickness of the forged side beam, the functions of reducing the weight of the far end and increasing the layout space of a series of suspension plate springs and clamp brake units are further achieved while the structural strength is ensured, the welding workload is obviously reduced, the thermal deformation area is welded, and the mechanical strength and the quality of a welding seam are improved.
The transverse shock absorber mounting seat and the transition connecting plate are combined into a structural design of a forged integrated piece, so that the process steps that the traditional transverse shock absorber is additionally welded with a beam pipe independently in the form of a beam brake cylinder hanging seat are reduced, the heat shrinkage deformation of a welding and fixedly connecting mode and the generation probability of welding flaws are reduced, and the welding manufacturing and repairing procedures are reduced; the rotationally symmetrical layout mode can offset the reverse torque generated on the framework in a rotationally symmetrical mode, and the effect of reducing the meandering and torsional pendulum is achieved.
The transition connecting plate and the half integrated traction pull rod seat are combined into the structural design of the forged integrated part, and the process steps that the old two independent traction pull rod seats are welded with the beam pipe independently are reduced, so that the heat shrinkage deformation and the welding defect generation probability of a welding and fixedly connecting mode are reduced, and the welding manufacturing and repairing procedures are reduced.
The light integrated mounting seat is fixedly connected to the outer side wall protruding outwards from the middle of the box-shaped welding side beam through bolts, so that the thermal shrinkage deformation and the probability of occurrence of welding flaws in a welding and fixedly connecting mode are reduced, welding manufacturing and repairing procedures are reduced, and production and maintenance replacement efficiency is improved.
The transition connecting plate is connected with a series of suspension plate spring mounting seats through an outward-inclined cantilever, the outward-inclined cantilever extends obliquely to the outside of the side beam in a horizontal plane, and the angle of a first included angle beta formed between the outward-inclined cantilever and the outer end surface of the wing-shaped transition seat of the side beam is 3-9 degrees, and the optimal value is 5 degrees; the angle of the second included angle alpha formed by the outer end surfaces of the wing-shaped transition seats of the two forged side beams positioned at the same longitudinal end parts of the combined side beam ranges from 6 degrees to 18 degrees, and the optimal value of the second included angle alpha is 10 degrees; the base part of the side beam brake cylinder hanging seat is cylindrical, and the value range of a third included angle gamma formed between the rotation axis of the base part and the transverse central line s of the combined side beam is 3-8 degrees, and the optimal value of the third included angle gamma is 5 degrees. The parameter setting of the size chain is determined by a large number of experimental verification, the parameter design of the size chain enables the distance value of the far ends of the two side beam mechanisms to be obviously increased, and the layout space of the first vertical shock absorber mounting seat and the first suspension plate spring is improved, so that the occupation of the first suspension device to the transverse space of the framework is released. The space between the beam brake cylinder hanging seat and the two side beam brake cylinder hanging seats is obviously increased by the compact and staggered structure, the layout space is increased, the maximum number of the axle-mounted brake disc mechanisms arranged along the axle is increased from old two to three, the braking effect of the axle-mounted brake mechanisms is further enhanced, the train running at high speed has smaller braking distance, and the performance and the safety of the train are improved. In addition, the cantilever axle boxes originally arranged on the outer sides of the left steel wheel and the right steel wheel of the wheel pair mechanism are changed into the cantilever axle boxes arranged on the inner sides of the left steel wheel and the right steel wheel, so that the theoretical span of the forging cross beam is effectively shortened, the torque of the whole framework is reduced, and the strength is higher.
The light integrated mounting seat has a triangular overlooking structure, and the connecting line of the barycenters of the shaft seats of the anti-side rolling torsion bar mounting seat and the secondary vertical shock absorber mounting seat is parallel to the combined side beam; an anti-hunting damper mounting seat positioned at the other vertex of the triangular structure, the opening of which faces the outside of the combined side beam; the opening of the anti-rolling torsion bar mounting seat is parallel to the combined side beam; the opening direction of the secondary vertical shock absorber mounting seat is parallel to the rotation axis of the forging cross beam; the rotation axis of the self-installation shaft seat of the anti-rolling torsion bar installation seat and the rotation axis of the self-installation shaft seat of the secondary vertical shock absorber installation seat are parallel to the axis direction of the shaft hole of the air spring installation seat; the anti-meandering shock absorber mounting seat is provided with a rotating axis of the shaft seat, an axis of the air spring mounting seat and a rotating axis of the forging cross beam, and the rotating axis, the air spring mounting seat and the rotating axis are perpendicular to each other in different planes. According to the structural design, the anti-rolling torsion bar, the anti-meandering shock absorber and the secondary vertical shock absorber are all migrated from the inside of the framework to the outside of the framework, so that the layout space inside the framework is better released, the assembly and maintenance of the auxiliary components of the framework are convenient, and the assembly space is reserved for newly added functional components. The light-weight integrated mounting seat is formed by integrally machining a light aluminum alloy material through forging and milling processes, and a lightening hole is formed in the middle of the light-weight integrated mounting seat. The structural design greatly reduces the weight of the light-weight integrated mounting seat, saves the manufacturing cost and the assembly time, and enables the application of the light-weight aluminum alloy material to be possible while ensuring the structural strength of the light-weight integrated mounting seat.
Drawings
FIG. 1 is a perspective view of a frame device for a non-power bogie in an axle box of a high-speed motor train unit according to the present invention;
FIG. 2 is a schematic view of the explosive assembly of FIG. 1;
Fig. 3 is a schematic perspective view of a frame device for a built-in non-power bogie of an axle box of a high-speed motor train unit under a turning view;
FIG. 4 is a top view of the frame assembly for a non-power bogie of the present invention for a high speed motor train unit axle box;
FIG. 5 is a schematic perspective view of two beam mechanisms;
FIG. 6 is a top view of the side sill mechanism of the present invention;
FIG. 7 is a schematic view of an exploded assembly of the side sill mechanism of the present invention in a perspective view;
FIG. 8 is an enlarged partial view of section I of FIG. 6;
FIG. 9 is a schematic illustration of the assembly relationship of the box weld beam and two swivel arm positioning blocks of the present invention;
fig. 10 is a schematic perspective view of a lightweight integrated mount according to the present invention at different viewing angles.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 10, the frame device for a non-power steering frame built in an axle box of a high-speed motor train unit according to the present invention includes: the combined side beam comprises a box-type welding side beam 1 and a forging side beam 2, a forging cross beam 7, a lightweight integrated mounting seat 3, a transverse stop 4, a side beam brake cylinder hanging seat 5, a rotating arm positioning seat 6, two cross beam brake cylinder hanging seats 8 and a traction pull rod seat 9; the two combined side beams and the two forged cross beams 7 form a frame.
The middle part of the box-shaped welding side beam 1 protrudes outwards, and an air spring mounting seat 1-1 on the box-shaped welding side beam 1 is arranged at a position where the middle part protrudes outwards, and the axis of a central hole of the air spring mounting seat is vertically upwards; the outside protruding structure enables the cross section of the box-shaped welding side beam 1 to be gradually increased from two ends to the middle part, the variable cross section design can not only enhance the capacity of the whole framework for resisting diamond-shaped load, but also effectively increase the distance value of the air springs on the two combined side beams, extend the inter-spring mass along the transverse extension of the framework, expand the arrangement space for the original compact air springs, traction centers and other auxiliary equipment, and improve the torque damping value between the two lightweight integrated mounting seats 3 and the anti-rolling torsion bar seats; a vertical shock absorber mounting seat 2-1 is arranged on the inner side wall at one end of a forged side beam 2, a suspension plate spring mounting seat 2-2 is arranged on the lower side wall at the end, an L-shaped transition connecting plate 2-3 is arranged at the other end of the forged side beam 2, and the forged side beam 2 is fixedly welded with the end part of the side beam wing-shaped transition seat 1-2 of the box-shaped welding side beam 1 through the L-shaped transition connecting plate 2-3, so that the cantilever quality and the occupied longitudinal space when the side beam wing-shaped transition seat 1-2 extends outwards originally are greatly reduced by virtue of the characteristics of high structural strength and small thickness of the forged side beam 2, the functions of reducing weight at the far end and increasing the layout space of the vertical shock absorber 10 and the suspension plate spring 11 are further realized while the structural strength is ensured, the welding workload and the welding area thermal deformation area are remarkably reduced, and the mechanical strength and quality of welding seams are improved.
The integrated mount pad 3 of lightweight links firmly on the lateral wall that the middle part outside is outstanding in box welding curb girder 1, transverse stop 4 links firmly on the inside wall in box welding curb girder 1 middle part, curb girder brake jar hanger 5 links firmly on the inside wall of curb girder wing form transition seat 1-2, rocking arm positioning seat 6 links firmly on the lower lateral wall of curb girder wing form transition seat 1-2, two crossbeam brake jar hangers 8 one-to-one link firmly on the lateral wall in the middle part of two forging crossbeam 7 crossbeam pipes 7-1, traction pull rod seat 9 links firmly on the lower lateral wall of forging crossbeam 7 crossbeam pipe 7-1 one end, two traction pull rod seats 9 take the framework center as central rotational symmetry setting.
The two forging crossbeams 7 are fixedly connected to the inner side wall of the middle part of the box-shaped welding side beam 1 through transition connecting plates 7-2 at two ends, the two forging crossbeams 7 are positioned at two sides of the transverse stop 4, the upper side wall of one transition connecting plate 7-2 of each forging crossbeam 7 is provided with a transverse damper mounting seat 7-2-1, and the two transverse damper mounting seats 7-2-1 are rotationally symmetrically arranged by taking the center of a framework as the center. The structural design of combining the transverse damper mounting seat 7-2-1 and the transition connecting plate 7-2 into a forging integrated piece reduces the process steps that the traditional transverse damper is additionally welded with the transverse beam pipe 7-1 singly in the form of the transverse beam brake cylinder hanging seat 8, thereby reducing the heat shrinkage deformation and the probability of occurrence of welding flaws in a welding and fixedly connecting mode, and reducing the welding manufacturing and repairing procedures; the rotationally symmetrical layout mode can offset the reverse torque generated on the framework in a rotationally symmetrical mode, and the effect of reducing the meandering and torsional pendulum is achieved.
The traction rod seat 9 comprises a half integrated traction rod seat 9-1 and a half independent traction rod seat 9-2, the half integrated traction rod seat 9-1 and the transition connecting plate 7-2 are integrally formed through forging and milling processes, the transition connecting plate 7-2 and the half integrated traction rod seat 9-1 are combined into a structural design of a forged integral piece, and the technical steps that the two existing independent traction rod seats 9-2 are independently welded with the beam tube 7-1 are reduced, so that the heat shrinkage deformation and the welding defect generation probability of a welding and fixedly connecting mode are reduced, and the welding manufacturing and repairing procedures are reduced; the other half of the independent traction rod seat 9-2 is welded on the beam tube 7-1.
Each forging beam 7 forms a beam mechanism together with a corresponding beam brake cylinder hanging seat 8 fixedly connected with the forging beam and a corresponding traction pull rod seat 9 fixedly connected with the forging beam; each combined side beam forms a side beam mechanism together with a corresponding light-weight integrated mounting seat 3 fixedly connected to the outer side wall of the side beam, and two transverse stop blocks 4, two side beam brake cylinder hanging seats 5 and two rotating arm positioning seats 6 fixedly connected to the inner side wall of the side beam.
The light-weight integrated mounting seat 3 is fixedly connected to the outer side wall of the middle part of the box-type welding side beam 1, which protrudes outwards, through bolts, and the transverse stop 4 is fixedly connected to the inner side wall of the middle part of the box-type welding side beam 1 through bolts. Thereby reducing the thermal shrinkage deformation and the probability of generating welding flaws in a welding and fixedly connecting mode, reducing the welding manufacturing and repairing procedures, and improving the production, maintenance and replacement efficiency.
The connecting section of the transition connecting plate 2-3 and the transition connecting section primary suspension plate spring mounting seat 2-2 of the forged side beam 2 is an outward-tilting cantilever 2-4, and the outward-tilting cantilever 2-4 extends obliquely to the outside of the side beam in a horizontal plane; the first included angle formed by the side wall of the camber cantilever 2-4 and the outer end surface of the side beam wing-shaped transition seat 1-2 is beta, the value range of the angle of the first included angle beta is 3-9 degrees, and the optimal value is 5 degrees; the two forged side beams 2 are positioned at the same longitudinal end part of the combined side beam, the second included angle formed by the outer end surfaces of the wing-shaped transition seats 1-2 of the side beams is alpha, the value range of the angle of the second included angle alpha is 6-18 degrees, and the optimal value of the angle is 10 degrees; the structural design greatly increases the distance value between the distal ends of the two side beam mechanisms, improves the layout space of the primary vertical shock absorber 10 and the primary suspension plate spring 11, and releases the occupation of the primary suspension device to the transverse space of the framework; in addition, the structural design changes the cantilever axle boxes 13 originally arranged on the outer sides of the left steel wheel 12-2 and the right steel wheel 12-2 of the wheel pair mechanism 12 to be arranged on the opposite inner sides of the left steel wheel 12-2 and the right steel wheel, so that the theoretical span of the forging cross beam 7 is effectively shortened, the torque of the whole framework is reduced, and the strength is higher.
The base part of the side beam brake cylinder hanging seat 5 is cylindrical, and the value range of a third included angle gamma formed between the rotation axis of the base part and the transverse central line s of the combined side beam is 3-8 degrees, and the optimal value of the third included angle gamma is 5 degrees. The structural design ensures that the space value between the beam brake cylinder hanging seat 8 and the two beam brake cylinder hanging seats 5 is obviously increased by the compact and staggered arrangement structure of the beam brake cylinder hanging seat 5 and the beam brake cylinder hanging seat 8, improves the layout space, and ensures that the maximum number of the axle-mounted brake disc mechanisms 14 arranged along the axle is increased from two old to three, thereby further enhancing the braking effect of the axle-mounted brake mechanisms, ensuring that a train running at high speed has smaller braking distance and improving the performance and the safety of the train.
The light integrated mounting seat 3 comprises an integrally formed anti-rolling torsion bar mounting seat 3-1, an anti-meandering shock absorber mounting seat 3-2 and a secondary vertical shock absorber mounting seat 3-3; the overlooking structure of the light integrated mounting seat 3 is triangular, and the connecting line of the barycenters of the shaft seats of the anti-rolling torsion bar mounting seat 3-1 and the two-system vertical shock absorber mounting seat 3-3 is parallel to the combined side beam; an anti-hunting damper mount 3-2 located at the other vertex of the triangle structure with its opening facing the outside of the combination side member; the opening of the anti-rolling torsion bar mounting seat 3-1 is parallel to the combined side beam; the opening direction of the secondary vertical shock absorber mounting seat 3-3 is parallel to the rotation axis of the forging cross beam 7; the rotation axis of the self-installation shaft seat of the anti-rolling torsion bar installation seat 3-1 and the rotation axis of the self-installation shaft seat of the secondary vertical shock absorber installation seat 3-3 are parallel to the axis direction of the shaft hole of the air spring installation seat 1-1; the rotation axis of the self-installation shaft seat of the anti-meandering shock absorber installation seat 3-2, the axis of the air spring installation seat 1-1 and the rotation axis of the forging cross beam 7 are perpendicular to each other in different planes. According to the structural design, the anti-rolling torsion bar, the anti-meandering shock absorber and the secondary vertical shock absorber are integrated outside the framework, so that the structure of the framework can be greatly simplified, and the auxiliary components of the framework are fixed in a bolt mounting mode, so that the assembly and maintenance of the auxiliary components of the framework are convenient, and an assembly space is reserved for newly added functional components.
The light-weight integrated mounting seat 3 is integrally formed by adopting a light aluminum alloy material through forging and milling processes, and a lightening hole is formed in the middle of the light-weight integrated mounting seat 3. The structural design greatly reduces the weight of the lightweight integrated mounting seat 3, saves the manufacturing cost and the assembly time, ensures the structural strength of the lightweight integrated mounting seat, greatly reduces the weight of the framework, and enables the framework structure of two dissimilar materials of the lightweight aluminum alloy material and the steel material to be possible.
Claims (6)
1. The utility model provides a high-speed EMUs axle box built-in frame device for non-power bogie, its characterized in that, this frame device includes: the combined side beam comprises a box-type welding side beam (1) and a forging side beam (2), a forging cross beam (7), a lightweight integrated mounting seat (3), a transverse stop (4), a side beam brake cylinder hanging seat (5), a rotating arm positioning seat (6), two cross beam brake cylinder hanging seats (8) and a traction pull rod seat (9); two combined side beams and two forging cross beams (7) form a framework;
The middle part of the box-shaped welding side beam (1) protrudes outwards, and an air spring mounting seat (1-1) on the box-shaped welding side beam (1) is arranged at a position where the middle part protrudes outwards, and the axis of a central hole of the air spring mounting seat is vertically upwards; a series of vertical shock absorber mounting seats (2-1) are arranged on the inner side wall of one end of the forged side beam (2), a series of suspension plate spring mounting seats (2-2) are arranged on the lower side wall of the end, an L-shaped transition connecting plate (2-3) is arranged at the other end of the forged side beam (2), and the forged side beam (2) is fixedly connected with the end parts of the side beam wing-shaped transition seats (1-2) of the box-shaped welding side beam (1) through the L-shaped transition connecting plate (2-3) in a welding way;
The integrated mounting seat (3) is fixedly connected to the outer side wall of the middle part of the box-shaped welding side beam (1) protruding outwards, the transverse stop (4) is fixedly connected to the inner side wall of the middle part of the box-shaped welding side beam (1), the side beam brake cylinder lifting seat (5) is fixedly connected to the inner side wall of the side beam wing-shaped transition seat (1-2), the rotating arm positioning seat (6) is fixedly connected to the lower side wall of the side beam wing-shaped transition seat (1-2), the two beam brake cylinder lifting seats (8) are fixedly connected to the outer side wall of the middle part of the beam tube (7-1) of the two forging beams (7) in a one-to-one correspondence manner, the traction pull rod seat (9) is fixedly connected to the lower side wall of one end of the beam tube (7-1) of the forging beam (7), and the two traction pull rod seats (9) are rotationally symmetrically arranged by taking the center of the framework as the center;
The two forging crossbeams (7) are fixedly connected to the inner side wall of the middle of the box-shaped welding side beam (1) through transition connecting plates (7-2) at two ends, the two forging crossbeams (7) are located at two sides of the transverse stop (4), the upper side wall of one transition connecting plate (7-2) of each forging crossbeam (7) is provided with a transverse damper mounting seat (7-2-1), and the two transverse damper mounting seats (7-2-1) are rotationally symmetrical with the center of the framework as the center.
2. The frame device for the built-in non-power bogie of the axle box of the high-speed motor train unit according to claim 1, wherein the traction pull rod seat (9) comprises a half integrated traction pull rod seat (9-1) and a half independent traction pull rod seat (9-2), the half integrated traction pull rod seat (9-1) and the transition connecting plate (7-2) are integrally formed through forging and milling processes, and the half independent traction pull rod seat (9-2) is welded on the beam tube (7-1); each forging beam (7) forms a beam mechanism together with a corresponding beam brake cylinder hanging seat (8) fixedly connected with the forging beam and a corresponding traction pull rod seat (9) fixedly connected with the forging beam; each combined side beam forms a side beam mechanism together with a corresponding light-weight integrated mounting seat (3) fixedly connected to the outer side wall of the side beam, and eight side beam mechanism together with two transverse stop blocks (4), two side beam brake cylinder hanging seats (5) and two rotating arm positioning seats (6) fixedly connected to the inner side wall of the side beam.
3. The frame device for the built-in non-power steering frame of the axle box of the high-speed motor train unit according to claim 1, wherein the lightweight integrated mounting seat (3) is fixedly connected to the outer side wall protruding outwards from the middle of the box-shaped welding side beam (1) through bolts, and the transverse stop (4) is fixedly connected to the inner side wall of the middle of the box-shaped welding side beam (1) through bolts.
4. The frame device for a built-in non-power bogie of an axle box of a high-speed motor train unit according to claim 1, wherein the connecting section of the transition connecting plate (2-3) and the primary suspension plate spring mounting seat (2-2) of the forged side beam (2) is an outward-tilting cantilever (2-4), and the outward-tilting cantilever (2-4) extends obliquely to the outside of the side beam in a horizontal plane; the first included angle formed by the side wall of the camber cantilever (2-4) and the outer end surface of the side beam wing-shaped transition seat (1-2) is beta, the value range of the angle of the first included angle beta is 3-9 degrees, and the optimal value is 5 degrees; the two forged side beams (2) are positioned at the same longitudinal end part of the combined side beam, the second included angle formed by the outer end surfaces of the wing-shaped transition seats (1-2) of the side beams is alpha, the value range of the angle of the second included angle alpha is 6-18 degrees, and the optimal value of the angle is 10 degrees; the base part of the side beam brake cylinder hanging seat (5) is cylindrical, and the value range of a third included angle gamma formed between the rotation axis of the base part and the transverse central line s of the combined side beam is 3-8 degrees, and the optimal value of the third included angle gamma is 5 degrees.
5. The frame device for the non-power bogie in the axle box of the high-speed motor train unit according to claim 1, wherein the lightweight integrated mounting base (3) comprises an integrally formed anti-roll torsion bar mounting base (3-1), an anti-meandering shock absorber mounting base (3-2) and a secondary vertical shock absorber mounting base (3-3); the overlooking structure of the lightweight integrated mounting seat (3) is triangular, and the connecting line of the barycenters of the shaft seats of the anti-rolling torsion bar mounting seat (3-1) and the secondary vertical shock absorber mounting seat (3-3) is parallel to the combined side beam; an anti-hunting damper mounting seat (3-2) positioned at the other vertex of the triangular structure, the opening of which faces the outside of the combined side beam; the opening of the anti-rolling torsion bar mounting seat (3-1) is parallel to the combined side beam; the opening direction of the secondary vertical shock absorber mounting seat (3-3) is parallel to the rotation axis of the forging cross beam (7); the rotation axis of the self-installation shaft seat of the anti-rolling torsion bar installation seat (3-1) and the rotation axis of the self-installation shaft seat of the secondary vertical shock absorber installation seat (3-3) are parallel to the axis direction of the shaft hole of the air spring installation seat (1-1); the anti-meandering shock absorber mounting seat (3-2) is provided with a rotating axis of the shaft seat, an axis of the air spring mounting seat (1-1) and a rotating axis of the forging cross beam (7), and the rotating axes are perpendicular to each other in different planes.
6. The frame device for the built-in non-power steering frame of the axle box of the high-speed motor train unit according to claim 5, wherein the light-weight integrated mounting seat (3) is integrally formed by adopting a light aluminum alloy material through forging and milling processes, and a lightening hole is formed in the middle of the light-weight integrated mounting seat (3).
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