CN110576872A - Rack rail train with power switching function and suspension hinge structure - Google Patents
Rack rail train with power switching function and suspension hinge structure Download PDFInfo
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- CN110576872A CN110576872A CN201911015175.9A CN201911015175A CN110576872A CN 110576872 A CN110576872 A CN 110576872A CN 201911015175 A CN201911015175 A CN 201911015175A CN 110576872 A CN110576872 A CN 110576872A
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- train
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- 239000000725 suspension Substances 0.000 title claims abstract description 42
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 241000251468 Actinopterygii Species 0.000 claims description 5
- 210000001015 abdomen Anatomy 0.000 claims description 5
- 230000009194 climbing Effects 0.000 description 19
- 230000009467 reduction Effects 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 231100000817 safety factor Toxicity 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/02—Rack railways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B15/00—Combinations of railway systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
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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
- B61F5/26—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
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
- B61H1/006—Band brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/061—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having interengaging clutch members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a rack rail train with a power switching function and a suspension hinge structure, and relates to the technical field of rail transit; the train comprises at least one train unit, wherein the train unit comprises a power vehicle I, a power vehicle II and a power vehicle III which are sequentially hinged; two ends of the bottom of the first power vehicle and one end of the bottom of the third power vehicle, which is far away from the second power vehicle, are respectively provided with a rack-rail wheel-rail integrated bogie; the two adjacent power vehicles are connected at the end parts through a suspension hinge connection device, and the gravity of the first power vehicle and the third power vehicle close to the end part of the second power vehicle can be transmitted to the second power vehicle; through implementing this technical scheme, can effectively reduce the configuration of power bogie to can realize exporting wheel or drive gear with power on same shaft, make train traction power can full play, can effectively satisfy the mixed line demand of maximum 40 per mill ordinary wheel track ramp and maximum 250 per mill tooth rail ramp.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a rack rail train with a power switching function and a suspension hinge structure.
Background
The rack-rail railway is a mountain-climbing railway, one or more special toothed rails are laid in the middle of a common railway track, one or more gears are correspondingly arranged on a bogie of a locomotive running on the rack-rail railway, and when a train runs on the rack-rail railway, traction force and braking force are transmitted by meshing the gears with racks of the rack-rail railway, so that the problem of insufficient adhesive force of the common locomotive on a large-slope railway is solved, and the rack-rail railway has strong climbing capability.
at present, a rack-and-pinion railway is generally a pure rack-and-pinion railway and is mainly used for tourist sightseeing railways in scenic spots, the maximum ramp can reach 250 per thousand, the line distance is generally short, and the traction and the braking applied to the linear train are transmitted by a driving gear positioned in the middle of a rack-and-pinion bogie axle. In addition, a mixed railway with staggered tooth track railways and common wheel track railways appears abroad, namely, on a common railway trunk line or branch line, tooth tracks are laid in the middle of the line at a place (more than 40 per thousand) with a large ramp, a train running on the line is generally provided with two types of bogies, one type is a common bogie driven by the adhesion of the wheel tracks, the other type is a tooth track bogie provided with a tooth track driving gear, and the two types of power bogies are proportionally configured according to the traction capacity of respective traction systems.
The requirement of building a mixed line of a 40 per mill common wheel track ramp and a 250 per mill tooth track ramp is also provided by users in China, so that a novel tooth track train needs to be researched by a technical worker in the field to meet the operation requirement on the mixed line of the wheel track and the tooth track; therefore, in the process of implementing the embodiment of the invention, the inventor finds that at least the following technical problems exist in designing a novel rack rail train: on one hand, due to different functions of the two bogies, when one bogie works, the traction power on the other bogie is in an idle state; because of the limitation of the quantity of the power bogies, the climbing capacity of the train is limited, and the train can only climb a mixed line of 40 per thousand of common wheel track ramp lines and 120 per thousand of tooth track ramp lines; the two types of bogies not only increase the equipment investment, but also cannot fully utilize the traction capacity, and increase the weight of the train and cannot meet the requirements of customers; on the other hand, two bogies are arranged under each carriage of a common train (as shown in fig. 9), or a bogie with an articulated structure is arranged at the joint of the two carriages, so that the number of bogies is reduced, but the bogie with the articulated structure is limited by the structure, and the bogie without a power structure is a trailer bogie, while the bogie of a cogged rail train with strong climbing capability is generally a bogie with power, so that the articulated bogie cannot be applied to the cogged rail train.
Disclosure of Invention
In order to solve the technical problem that the existing rack train cannot meet the requirement of a mixed line of a 40 per thousand common wheel track ramp and a 250 per thousand rack ramp, the invention aims to provide the rack train with a power switching function and a suspension hinge structure, and a suspension hinge connecting device is adopted between two adjacent carriages of each train, so that the configuration of a power bogie can be effectively reduced; the driving force of the climbing rack rail train is driven by a gear, and the maximum running resistance of the climbing rack rail train is the component force of the gravity of the train on the ramp along the ramp, so that the weight of the train is reduced, the climbing resistance of the train can be effectively reduced, and the climbing capability of the rack rail train is improved; meanwhile, the invention is provided with the wheel axle driving system capable of switching power, and can realize that the power is output to wheels or a driving gear on the same wheel axle, so that the traction power of the train can be fully exerted, and the requirements of a mixed line of a maximum 40 per mill common wheel track ramp and a maximum 250 per mill tooth track ramp can be effectively met.
The technical scheme adopted by the invention is as follows:
A rack rail train with a power switching function and a suspension hinge structure comprises at least one train unit, wherein the train unit comprises a power vehicle I, a power vehicle II and a power vehicle III which are sequentially hinged; and
The rack-rail and wheel-rail integrated bogie comprises a rack-rail and wheel-rail integrated bogie, wherein two ends of the bottom of the power vehicle II are respectively provided with the rack-rail and wheel-rail integrated bogie;
The suspension hinge connecting device is used for connecting the end parts of the first power vehicle and the second power vehicle and the end parts of the second power vehicle and the third power vehicle through the suspension hinge connecting device, so that the gravity of the first power vehicle and the third power vehicle, which is close to the end parts of the second power vehicle, is transmitted to the second power vehicle and is borne by the gear track and wheel track integrated bogie at the bottom of the second power vehicle.
optionally, the rack-and-pinion integrated bogie comprises a bogie frame for bearing the weight of the vehicle body and a primary suspension and a secondary suspension which are arranged on the bogie frame, the bogie frame is of a fish belly sinking type structure, two sets of wheel shaft driving systems are arranged on the lower portion of the bogie frame, each wheel shaft driving system comprises wheel pairs, a rack driving gear arranged between the wheel pairs and a driving mechanism used for driving the wheel pairs and the rack driving gear, and the rack driving gear is meshed with the circuit rack. Specifically, the secondary suspension adopts an air spring suspension system with high comfort, the weight of the whole carriage is transmitted to a framework through an air spring, the bogie framework is of a fish belly sinking type structure, the weight can be effectively and uniformly distributed on a wheel axle driving system at the lower part of the bogie framework, and the primary suspension adopts a conical rubber spring for positioning, so that the weight transmitted by the bogie framework can be effectively transmitted to the wheel axle driving system; and then drive with rack drive gear through actuating mechanism, realize the drive mode of two kinds of differences of rack train by same bogie, can effectively improve rack train climbing ability, more importantly can effectively reduce the configuration of power bogie, and then lighten train weight so that the resistance of rack train along the ramp reduces, can further improve rack train climbing ability, satisfy the mixed line operation demand of the biggest 40 thousandths ordinary wheeltrack ramp + the biggest 250 thousandths rack ramp.
optionally, the driving mechanism comprises a traction motor, a coupling, a secondary gearbox and a hollow shaft, the hollow shaft is sleeved on the axle between the wheel pairs through a bearing sleeve, the traction motor is in transmission connection with the hollow shaft through the coupling and the secondary gearbox, and the rack driving gear is fixedly mounted on the hollow shaft so that the hollow shaft transmits the torque of the traction motor to the rack driving gear; and a clutch is arranged at the end part of the hollow shaft so as to connect or separate the hollow shaft and the axle.
Optionally, the clutch includes chain wheel one, chain wheel two and drive portion A, chain wheel one is fixed the tip of hollow shaft, drive portion A is fixed on the axletree, the chain wheel cover is located on the axletree and its axial slip and radial spacing connection, drive portion A's power output shaft with chain wheel two transmission is connected for drive chain wheel two meshes to chain wheel one along the axletree axial mutually for the messenger transmits the hollow shaft moment of torsion for the axletree and the wheel pair of being connected with the axletree. The technical scheme is preferably a jaw clutch which can transmit larger traction force and braking force, has better structural strength and long service life, and can effectively prolong the maintenance and replacement period.
optionally, the driving part a is driven by a cylinder or a hydraulic cylinder. The preferred pneumatic cylinder drive that is of this technical scheme combines the structural design that chain wheel one and chain wheel two constitute, and its transmission is more stable, and life cycle is long.
Optionally, the clutch includes a first friction plate, a second friction plate and a driving part B, the first friction plate is fixed at the end of the hollow shaft, the driving part B is fixed on the axle, the second friction plate is sleeved on the axle and slides axially and is connected in a radial limiting manner, a power output shaft of the driving part B is in transmission connection with the second friction plate and is used for driving the second friction plate to abut against the first friction plate along the axial direction of the axle, and a spring is mounted on the first friction plate to separate the second friction plate from the first friction plate when the driving part B stops driving. This technical scheme adopts friction plate formula clutch, and its structure compares with the structure of jaw clutch, and compact structure does not have the risk of beating the tooth, and factor of safety is high, and it switches steadily and need not the parking conversion function, especially is fit for the train that moves on cogged rail and ordinary wheel rail hybrid line and uses, has better practicality.
Optionally, the driving part B is driven by a cylinder or a hydraulic cylinder. The technical scheme is characterized in that the air cylinder is selected for driving, and the structural design of the first friction plate and the second friction plate is combined, so that the structure is simple and reliable, the function conversion is stable, and the noise is low.
Optionally, a band brake is arranged on the hollow shaft, and the band brake comprises a brake drum fixedly connected with the end of the hollow shaft. The belt brake has good cohesion performance; occupies a smaller space of the hollow shaft; the brake device can generate larger brake torque, and has better wedging effect on a rack driving gear by matching with a rack driving gear structure on a rack line.
optionally, the suspension hinge connecting device comprises a left frame and a right frame which are fixedly connected with two adjacent power vehicles respectively, and a shaft ball connecting piece which is movably connected between the left frame and the right frame and connects the left frame and the right frame together; the shaft ball connecting piece comprises a traction shaft and a connecting rotating ball fixed in the middle of the traction shaft, a left framework connecting section is arranged in the middle of the outer side of the left framework in a protruding mode towards the right framework, a rotating ball hinge sleeve is arranged at the end of the left framework connecting section, and the connecting rotating ball is located in the rotating ball hinge sleeve and is hinged with the rotating ball hinge sleeve; the two ends of the outer side of the right framework are respectively provided with a right framework connecting section in a protruding mode towards the left framework, two ends, corresponding to the two ends of the traction shaft, of the right framework connecting sections are provided with traction shaft connecting sleeves used for being sleeved with the traction shaft, and the two ends of the traction shaft are rotatably connected with the corresponding traction shaft connecting sleeves. Therefore, the left frame and the right frame are connected together through the connecting rotating ball and the traction shaft, the connecting rotating ball can realize the transmission of longitudinal force and vertical force, the traction shaft can realize the transmission of longitudinal force, and the structural design of the connecting device can realize the purpose of simultaneously transmitting longitudinal force and vertical force; the weight of the first power vehicle and the third power vehicle close to the end part of the second power vehicle can be transmitted to the second power vehicle through the connecting device to achieve the suspended connecting effect, so that the structural configuration of the existing power vehicle bogie can be effectively reduced, and the weight of a train is further reduced; and the effect of traction power of the integrated bogie of the rack rail wheel rail is fully exerted, the mixed route of the rack rail train climbing large ramp with the structural design can be effectively realized, and the integrated bogie has remarkable practicability.
Optionally, the left frame and the right frame are respectively welded and fixed with the motor vehicles corresponding to the left frame and the right frame. Because the connecting device needs to transmit the gravity of the power vehicle in the vertical direction, the left framework and the right framework are respectively welded and fixed with the power vehicle corresponding to the left framework and the right framework, the connection stability of the left framework and the right framework can be effectively ensured, and the left framework and the right framework have higher safety factors.
As described above, the present invention has at least the following advantageous effects:
1. The bottom of each rack train unit is provided with four bogies, and compared with the structural design that the bottom of each common carriage of the traditional train is provided with two common bogies, the rack train unit can effectively reduce the configuration of power bogies.
2. the bogie designed by the invention is a rack-and-wheel-track integrated bogie, two different driving modes of a rack-and-track train are realized by the same bogie, the configuration of a power bogie can be further reduced, and the weight of the rack-and-track train is further lightened; the design of the integrated bogie of the rack and the wheel track can lead the rack train to have light weight and lead the traction power to be fully exerted, thereby further realizing that the rack train has strong climbing capability and effectively meeting the operation requirement of a mixed line of a maximum 40 per thousand common wheel track ramp and a maximum 250 per thousand rack ramp.
3. Compared with the traditional train driving system, the wheel axle driving system is provided with two clutches with power switching functions, one of the clutches is a jaw clutch, the jaw clutch can transmit larger traction force and braking force, has better structural strength and long service life, and can effectively shorten the maintenance and replacement period; the second is friction plate type clutch, and its structure compares with the structure of jaw clutch, and it does not have the risk of beating the tooth, and factor of safety is high, and its switches steadily and need not the parking conversion function, and need not to park in wheel rail and cogged rail circuit transition, need not the passenger and transfer, has better practicality.
4. The clutch with the power switching function is arranged on the shaft part of the wheel set, has the advantages of compact structure, simplicity, reliability, stable switching, low noise and convenient maintenance, can be effectively suitable for trains running on a tooth rail and common wheel rail mixed line, and is particularly suitable for meter rail lines with narrow wheel set spacing.
5. according to the invention, in combination with the design of the rack-rail wheel-rail integrated bogie, a suspension hinge connection device is designed between two adjacent power vehicles, and the structural design can effectively reduce the configuration of the power bogie, thereby not only reducing the weight of the whole rack-rail train unit and saving the energy consumption of ramp operation, but also reducing the purchase cost and the application and maintenance cost of the train; on the other hand, the structure ingeniously utilizes the connecting rotating ball to achieve transmission of longitudinal force and vertical force, transmission of longitudinal force is achieved through the traction shaft, the connecting device is structurally designed to achieve the purpose of transmitting longitudinal force and vertical force simultaneously, and then vertical loads of adjacent motor cars are borne, so that the design of a bogie at the joint of the motor cars can be effectively cancelled, the structure is simple in design, ingenious and reasonable, reliable connection stability can be obtained through a fixing mode that the left framework and the right framework are welded on the two adjacent motor cars, and the whole car has high safety factor.
6. Each rack rail train unit comprises three power vehicles but not limited to three power vehicles, a plurality of unit rack rail trains can run in a reconnection mode, existing train configuration equipment is fully utilized through reasonable power unit matching, operation efficiency is submitted, operation and maintenance cost is reduced, application requirements of customers can be fully met, and the method is suitable for being widely popularized and applied in the technical field.
Drawings
The invention will be described by way of specific embodiments and with reference to the accompanying drawings, in which
Fig. 1 is a schematic diagram of a train unit of a rack-and-pinion train with a power switching function and a suspension hinge structure according to an embodiment of the invention;
FIG. 2 is a schematic view of the rack and pinion track integral truck of FIG. 1;
FIG. 3 is a top view of FIG. 2;
Fig. 4 is a schematic structural view of a wheel axle drive system in embodiment 1 of the invention;
Fig. 5 is a schematic structural view of a wheel axle drive system in embodiment 2 of the invention;
FIG. 6 is a schematic view of the external structure of the suspension hinge connection of FIG. 1;
FIG. 7 is a side view of FIG. 6;
FIG. 8 is a schematic cross-sectional view of A-A of FIG. 7;
Fig. 9 is a prior art conventional train bogie in the background of the invention.
Description of reference numerals: 100-train unit; 110-power vehicle one; 120-motor vehicle two; 130-power car three; 140-end coupler; 200-a rack-and-pinion wheel-rail integrated bogie; 210-a bogie frame; 220-primary suspension; 230-secondary suspension; 240-axle drive system; 241-wheel pair; 242-rack drive gear; 243-traction motor; 244-coupling; 245-a two-stage gearbox; 246-hollow shaft; 247-axle; 248-axle boxes; 249-bearings; 250-a clutch; 251-crankset one; 252-dental plate two; 253-drive section a; 254-friction plate one; 255-friction plate two; 256-drive section B; 257-a spring; 260-a traction device; 270-unit brake; 280-band brake; 300-a suspended hinged connection; 310-a left framework; 311-left frame connection section; 312-rotating ball joint sleeve; 320-right frame; 321-a right frame connecting section; 322-traction shaft connection sleeve; 330-axle ball connection; 331-a traction shaft; 332-connecting a rotating ball; 400-common carriage; 410-ordinary bogie.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example 1
The embodiment is basically as shown in figure 1: the embodiment provides a rack-and-pinion train with a power switching function and a suspension hinge structure, which can be applied to a mixed line of a rack-and-pinion railway and a common wheel-and-rail railway, and comprises at least one train unit 100, wherein the embodiment takes the provision of one train unit 100 as an example, the train unit 100 comprises a first power vehicle 110, a second power vehicle 120 and a third power vehicle 130 which are hinged in sequence; the dual-purpose vehicle further comprises a rack and rail integrated bogie 200, wherein two ends of the bottom of the second power vehicle 120 are respectively provided with a rack and rail integrated bogie 200, and one ends of the bottoms of the first power vehicle 110 and the third power vehicle 130, which are far away from the second power vehicle 120, are respectively provided with a rack and rail integrated bogie 200. Therefore, four bogies are arranged at the bottom of each rack train unit 100, and compared with the structural design that two ordinary bogies 410 are arranged at the bottom of each ordinary carriage 400 of the conventional train as shown in fig. 9, the arrangement of power bogies can be effectively reduced.
as shown in fig. 2 and fig. 3, the rack-and-pinion integrated bogie 200 provided in this embodiment includes a bogie frame 210 for bearing the weight of the vehicle body, and a primary suspension 220 and a secondary suspension 230 provided on the bogie frame 210, specifically, the bogie frame 210 is a fish belly sinking type structure, two sets of axle driving systems 240 are provided at the lower portion of the bogie frame 210, a traction device 260 is further installed on the bogie frame 210, the traction device 260 is a center pin traction manner, and the other end of the center pin is connected to the vehicle body, although a center pin + traction pull rod manner may also be adopted; the secondary suspension 230 is a high-comfort air spring 257 suspension system, the weight of the whole carriage is transmitted to the frame through the air spring 257, the bogie frame 210 is of a fish belly sinking type structure, the weight can be effectively and equally distributed on the axle driving system 240 at the lower part of the bogie frame, the primary suspension 220 is positioned by the conical rubber spring 257, the weight transmitted by the bogie frame 210 can be effectively transmitted to the axle driving system 240, and the primary suspension 220 and the secondary suspension 230 are both suspension structures in the prior art and are not improvement points of the invention, so that the secondary suspension is not described in detail in the disclosure.
The axle driving system 240 is a traction motor frame suspension type + gear box axle suspension driving mode, as shown in fig. 4, the axle driving system 240 provided in this embodiment includes an axle pair 241, a rack driving gear 242 disposed between the axle pair 241, and a driving mechanism for driving the axle pair 241 and the rack driving gear 242, the axle pair 241 is mounted on the bogie frame 210 through an axle 247, and axle boxes 248 are disposed at two ends of the axle 247. Further, the driving mechanism comprises a traction motor 243, a coupling 244, a secondary gearbox 245 and a hollow shaft 246, the left end of the hollow shaft 246 is sleeved on an axle 247 between the wheel pairs 241 through a bearing, the traction motor 243 is suspended on the bogie frame 210, the traction motor 243 is in transmission connection with the hollow shaft 246 through the coupling 244 and the secondary gearbox 245, the rack driving gear 242 is fixedly installed on the hollow shaft 246 and is in radial limit connection with the hollow shaft 246, so that the hollow shaft 246 transmits the torque of the traction motor 243 to the rack driving gear 242, and the rack driving gear 242 is meshed with the track; and a clutch 250 is provided at a right end portion of the hollow shaft 246 to connect or disconnect the hollow shaft 246 with or from the axle 247; and then drive with rack drive gear 242 through actuating mechanism, realize the drive mode of two kinds of differences of rack train by same bogie, can effectively improve rack train climbing ability, more importantly can effectively reduce the configuration of power bogie, and then lighten train weight so that the resistance of rack train along the ramp reduces, can further improve and improve rack train climbing ability.
Preferably, the reduction gearbox of the driving mechanism provided by the embodiment adopts a two-stage reduction gearbox, and compared with a one-stage reduction gearbox adopted by a common urban rail vehicle, the reduction gearbox has a larger transmission ratio, and can increase the traction torque by nearly one time, so that the traction capacity of a train is increased by nearly one time, and the requirements of the use of a toothed rail line and a mixed line with larger gradient of a climbing line of the train are met.
as a further optimization of the technical solution of the present embodiment, the clutch 250 provided in the present embodiment includes a first chain wheel 251, a second chain wheel 252, and a driving portion a253, where the first chain wheel 251 is fixed at a right end of the hollow shaft 246, and its specific fixing manner can both adopt interference fit or threaded connection, the driving portion a253 is fixed on the axle 247 through a bearing, the second chain wheel 252 is sleeved on the axle 247 and slides axially and is limited radially, a power output shaft of the driving portion a253 is connected with the second chain wheel 252 in a transmission manner, and is used for driving the second chain wheel 252 to move axially along the axle 247, the driving portion a253 provided in the present embodiment is driven by an air cylinder, or driven by a hydraulic cylinder, for example, based on a hydraulic source drive provided with an oil inlet mechanism and an oil return mechanism, and the specific structure of the driving portion a253 is the prior art, and the present disclosure does; in this way, the driving portion a253 is used for driving the chain wheel two 252 to move towards the chain wheel one 251 along the axial direction of the axle 247 and to be meshed with the axle 247, so that the torque obtained by the hollow shaft 246 is transmitted to the axle 247 and the wheel pair 241 connected with the axle 247. The technical scheme is preferably the jaw clutch 250 which can transmit larger traction force and braking force, has better structural strength and long service life, and can effectively prolong the maintenance and replacement period.
The rack-and-pinion wheel-rail integrated bogie 200 provided by the embodiment is also provided with a unit brake 270 and a belt brake 280, wherein the unit brake 270 corresponds to the wheel set 241 and is installed on the bogie frame 210, and is mainly used for braking on a common wheel-and-rail line; the belt brake 280 is mounted on the hollow shaft 246, the belt brake 280 comprises a brake drum fixedly connected with the end of the hollow shaft 246, the belt brake 280 is mainly used for braking on a rack-and-pinion line, and the belt brake 280 has good cohesion performance; takes up less space in the hollow shaft 246; the brake device can generate larger brake torque, and has better wedging effect on the rack driving gear 242 by matching with the rack driving gear 242 structure on the mixed line.
The specific implementation of the axle driving system 240 of this embodiment is as follows: the gear-track train axle driving system 240 of the embodiment has two driving modes: firstly, when a train runs on a tooth track line, a first chain wheel 251 and a second chain wheel 252 in the clutch 250 are in a separated state, a bearing is arranged between an axle 247 and a hollow shaft 246 to ensure that the axle 247 and the hollow shaft 246 can independently complete rotation, traction torque generated by a traction motor 243 is transmitted into a secondary reduction gearbox through a coupling 244 and then transmitted to a tooth track driving gear 242 through a hollow shaft 246 in transmission connection with the secondary reduction gearbox, and the gear is meshed with a tooth track rack to generate traction force to enable the train to run; secondly, the train runs on a common wheel-track line, the driving part A253 of the clutch 250 drives the chain wheel II 252 to move towards the chain wheel I251 along the axial direction of the axle 247 and is meshed with the axle 247, the chain wheel I251 and the chain wheel II 252 are connected in a matching way to fix the hollow shaft 246 and the axle 247 into a whole, at the moment, the traction torque generated by the traction motor 243 is transmitted into the two reduction boxes through the coupling 244, then transmitted to the clutch 250 through the hollow shaft 246 in transmission connection with the two reduction boxes, transmitted to the axle 247 through the clutch 250 and transmitted to the wheel pair 241 through the axle 247, and the train runs by means of the adhesive force of the wheel pair 241 tread and the track surface. Therefore, the wheel axle driving system 240 in the embodiment can output power to wheels or driving gears on the same wheel axle by using the same driving mechanism and through the power switching function of the clutch 250, so that the traction power of the train can be fully exerted, and the requirement of a rack track line and a mixed line with larger gradient of a climbing line of the train is met.
The present embodiment further provides a floating hinge connecting device 300, as shown in fig. 1, wherein the first power vehicle 110 and the second power vehicle 120 and the third power vehicle 130 are connected at their ends by the floating hinge connecting device 300, so that the gravity of the first power vehicle 110 and the third power vehicle 130 near the ends of the second power vehicle 120 is transmitted to the second power vehicle 120 and is carried by the rack-and-pinion integrated bogie 200 at its bottom. Specifically, as shown in fig. 6, 7 and 8, the floating hinge connecting device 300 includes a left frame 310 and a right frame 320 respectively welded to two adjacent vehicles, for example, the left frame 310 is welded to the right end of the first vehicle 110, the left frame 310 is welded to the left end of the second vehicle 120, and the connecting device needs to transmit the gravity of the vehicles in the vertical direction, so that the connecting stability of the left frame 310 and the right frame 320 can be effectively ensured by welding and fixing the left frame 310 and the right frame 320 to the corresponding vehicles, and the safety factor of the connecting device is high.
The shaft ball connecting piece 330 is movably connected between the left frame 310 and the right frame 320 and connects the left frame 310 and the right frame 320 together; the axle ball connecting piece 330 comprises a traction shaft 331 and a connecting rotating ball 332 fixed in the middle of the traction shaft 331, the concrete fixing mode can adopt interference fit connection, the middle of the outer side of the left frame 310 is provided with a left frame connecting section 311 protruding towards the right frame 320, the end part of the left frame connecting section 311 is provided with a rotating ball hinge sleeve 312, and the connecting rotating ball 332 is positioned in the rotating ball hinge sleeve 312 and is hinged with the rotating ball hinge sleeve 312; two ends of the outer side of the right frame 320 protrude towards the left frame 310 to form right frame connecting sections 321, two ends of the two right frame connecting sections 321 corresponding to the traction shaft 331 are provided with traction shaft connecting sleeves 322 for sleeving the traction shaft 331, and two ends of the traction shaft 331 are sleeved in the corresponding traction shaft connecting sleeves 322 and can freely rotate relative to the corresponding traction shaft connecting sleeves 322. Therefore, the left frame 310 and the right frame 320 are connected together through the connecting rotating ball 332 and the traction shaft 331, the connecting rotating ball 332 can realize the transmission of longitudinal force and vertical force, the traction shaft 331 can realize the transmission of longitudinal force, and the structural design of the connecting device can realize the purpose of simultaneously transmitting longitudinal force and vertical force; thus, the weight of the first power vehicle 110 and the third power vehicle 130 close to the end of the second power vehicle 120 can be transmitted to the second power vehicle 120 through the connecting device to achieve the suspended connecting effect, the structural configuration of the existing power vehicle bogie can be effectively reduced, and the weight of a train is further reduced; and the effect of traction power of the integrated bogie 200 of the rack rail wheel rail is fully exerted, so that the mixed route of the rack rail train climbing a large ramp with the structural design can be effectively realized, and the practical applicability is obvious.
in conclusion, stress analysis shows that the maximum running resistance of the conventional climbing rack train is the component force of the gravity of the train on the ramp along the ramp, so that the weight of the rack train is reduced, the climbing resistance of the train can be effectively reduced, and the climbing capability of the rack train is improved; meanwhile, in the rack-and-pinion train unit 100 of the present embodiment, the four bogies all adopt the rack-and-pinion integrated bogie 200, and each bogie only needs to be provided with one wheel axle driving system 240, so that the reduction of the wheel axle driving system 240 can further reduce the configuration weight of the bogie, and the wheel axle driving system 240 in the present embodiment can utilize the same driving mechanism and the power switching function of the clutch 250 to output power to wheels and driving gears on the same wheel axle, so that the train traction power can be fully exerted, and the mixed line operation requirement of maximum 40% o common wheel-and-maximum 250% o rack-and-pinion ramp can be effectively met.
The clutch 250 with the power switching function is arranged on the shaft part of the wheel set, has compact structure, simplicity, reliability, stable switching, low noise and convenient maintenance, can be effectively suitable for trains running on a tooth rail and common wheel rail mixed line, and is particularly suitable for meter rail lines with narrow wheel set spacing; further, each rack train unit 100 includes three power vehicles but is not limited to three power vehicles, the three power vehicles are taken as an example in the embodiment, a plurality of unit rack trains can be actually configured to run in a reconnection manner according to user requirements, the rack train unit can be reconnected through a coupler 140 at the end portion of the rack train unit, and through reasonable power unit matching, existing train configuration equipment is fully utilized, operation efficiency is submitted, operation and maintenance costs are reduced, user application requirements can be fully met, and the method is suitable for being widely popularized and applied in the technical field.
Example 2
Example 2 is substantially the same as example 1 except that: the clutch 250 provided in this embodiment is a friction plate clutch 250, please refer to fig. 5, in which the clutch 250 specifically includes a first friction plate 254, a second friction plate 255, and a driving portion B256, and the driving portion B256 provided in this embodiment is preferably driven by an air cylinder, although it may be driven by a hydraulic cylinder, and the specific structure of the driving portion B256 is the prior art, which is not described in detail in this disclosure; the first friction plate 254 is fixed at the end of the hollow shaft 246 and is in radial limit connection with the hollow shaft, the air cylinder is fixedly arranged on the axle 247 and is communicated with an air inlet pipeline which is communicated with the existing air supply equipment to form an air cylinder driving system; the second friction plate 255 is sleeved on the axle 247, axially slides and is in radial limit connection, the power output shaft of the cylinder is in transmission connection with the second friction plate 255, when the cylinder admits air, the power output shaft of the cylinder axially moves relative to the axle 247 to further drive the second friction plate 255 to be tightly abutted against the first friction plate 254 along the axial direction of the axle 247 to realize friction fit, and the first friction plate 254 is provided with a spring 257 to separate the second friction plate 255 from the first friction plate 254 when the cylinder stops driving.
The specific implementation manner of this embodiment is: when the train runs on a mixed line of a common wheel track line and a tooth track line, gas is filled into the cylinder through the gas inlet pipe, so that the power output shaft of the cylinder drives the second friction plate 255 to move towards the first friction plate 254 along the axial direction of the axle 247 and to be abutted against the first friction plate 254 to realize friction fit, under the friction fit of the first friction plate 254 and the second friction plate 255, the traction torque generated by the traction motor 243 is transmitted into the two-stage reduction gearbox through the coupling 244, then is transmitted to the first friction plate 254 through the hollow shaft 246 in transmission connection with the two-stage reduction gearbox and is transmitted to the second friction plate 255 through the first friction plate 254, and is transmitted to an axle 247 connected with the air cylinder through a second friction plate 255, and then is transmitted to the wheel set 241 through the axle 247, the train runs by the adhesive force of the tread and the rail surface of the wheel set 241, and the rack drive gear 242 on the hollow shaft 246 also generates traction with the rack on the rack to move the train. Therefore, the wheel axle driving system 240 of this embodiment can output power to the wheels and the driving gear on the same wheel axle by using the same driving mechanism and the power switching function of the clutch 250, so that the traction power of the train can be fully exerted, and the requirement of a mixed line of a maximum 40 per mill common wheel track ramp and a maximum 250 per mill tooth track ramp is met.
This technical scheme adopts friction plate formula clutch 250, and its structure compares with jaw clutch 250's structure, and compact structure does not have the risk of beating the tooth, and factor of safety is high, and it switches steadily and need not the parking conversion function, and the train that especially is fit for operation on cogged rail and ordinary wheel rail hybrid line uses, has better practicality.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. The utility model provides a rack rail train with power switches function and suspension hinge structure which characterized in that: the train comprises at least one train unit, wherein the train unit comprises a power vehicle I, a power vehicle II and a power vehicle III which are sequentially hinged; and
the rack-rail and wheel-rail integrated bogie comprises a rack-rail and wheel-rail integrated bogie, wherein two ends of the bottom of the power vehicle II are respectively provided with the rack-rail and wheel-rail integrated bogie;
The suspension hinge connecting device is used for connecting the end parts of the first power vehicle and the second power vehicle and the end parts of the second power vehicle and the third power vehicle through the suspension hinge connecting device, so that the gravity of the first power vehicle and the third power vehicle, which is close to the end parts of the second power vehicle, is transmitted to the second power vehicle and is borne by the gear track and wheel track integrated bogie at the bottom of the second power vehicle.
2. The rack rail train with the power switching function and the suspension hinge structure as claimed in claim 1, wherein: the integral bogie of the rack and the wheel track comprises a bogie framework for bearing the weight of a vehicle body and a primary suspension and a secondary suspension which are arranged on the bogie framework, the bogie framework is of a fish belly sinking type structure, two sets of wheel shaft driving systems are arranged on the lower portion of the bogie framework, each wheel shaft driving system comprises a wheel pair, a rack driving gear arranged between the wheel pairs and a driving mechanism used for driving the wheel pair and the rack driving gear, and the rack driving gear is meshed with the circuit rack.
3. the rack rail train with the power switching function and the floating hinge structure according to claim 2, wherein: the driving mechanism comprises a traction motor, a coupling, a secondary gearbox and a hollow shaft, the hollow shaft is sleeved on an axle between wheel pairs through a bearing sleeve, the traction motor is in transmission connection with the hollow shaft through the coupling and the secondary gearbox, and the rack driving gear is fixedly arranged on the hollow shaft so that the torque of the traction motor is transmitted to the rack driving gear by the hollow shaft; and a clutch is arranged at the end part of the hollow shaft so as to connect or separate the hollow shaft and the axle.
4. the rack rail train with the power switching function and the floating hinge structure according to claim 3, wherein: the clutch includes chain wheel one, chain wheel two and drive portion A, chain wheel one is fixed the tip of hollow shaft, drive portion A is fixed on the axletree, the chain wheel cover is located on the axletree and its axial slip and radial spacing connection, drive portion A's power output shaft with two transmissions of chain wheel are connected for drive chain wheel two meshes to chain wheel one along the axletree axial mutually for the messenger transmits the hollow shaft moment of torsion for the axletree and the wheel pair of being connected with the axletree.
5. the rack rail train with the power switching function and the floating hinge structure according to claim 4, wherein: the driving part A is driven by an air cylinder or a hydraulic cylinder.
6. The rack rail train with the power switching function and the floating hinge structure according to claim 3, wherein: the clutch comprises a first friction plate, a second friction plate and a driving part B, wherein the first friction plate is fixed at the end part of the hollow shaft, the driving part B is fixed on the axle, the second friction plate is sleeved on the axle and slides axially and is in radial limiting connection, a power output shaft of the driving part B is in transmission connection with the second friction plate and is used for driving the second friction plate to abut against the first friction plate along the axial direction of the axle, and a spring is arranged on the first friction plate to separate the second friction plate from the first friction plate when the driving part B stops driving.
7. The rack rail train with the power switching function and the floating hinge structure according to claim 6, wherein: the driving part B is driven by an air cylinder or a hydraulic cylinder.
8. The rack rail train with a power switching function and a floating hinge structure according to any one of claims 3 to 7, wherein: the hollow shaft is provided with a belt brake, and the belt brake comprises a brake drum fixedly connected with the end part of the hollow shaft.
9. The rack rail train with the power switching function and the suspension hinge structure as claimed in claim 1, wherein: the suspension hinge connecting device comprises a left framework and a right framework which are respectively and fixedly connected with two adjacent power vehicles, and a shaft ball connecting piece which is movably connected between the left framework and the right framework and connects the left framework and the right framework together; the shaft ball connecting piece comprises a traction shaft and a connecting rotating ball fixed in the middle of the traction shaft, a left framework connecting section is arranged in the middle of the outer side of the left framework in a protruding mode towards the right framework, a rotating ball hinge sleeve is arranged at the end of the left framework connecting section, and the connecting rotating ball is located in the rotating ball hinge sleeve and is hinged with the rotating ball hinge sleeve; the two ends of the outer side of the right framework are respectively provided with a right framework connecting section in a protruding mode towards the left framework, two ends, corresponding to the two ends of the traction shaft, of the right framework connecting sections are provided with traction shaft connecting sleeves used for being sleeved with the traction shaft, and the two ends of the traction shaft are rotatably connected with the corresponding traction shaft connecting sleeves.
10. The rack rail train with power switching function and suspension hinge structure as claimed in claim 9, wherein: the left framework and the right framework are respectively welded and fixed with the power vehicles corresponding to the left framework and the right framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911015175.9A CN110576872A (en) | 2019-10-24 | 2019-10-24 | Rack rail train with power switching function and suspension hinge structure |
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| CN201911015175.9A CN110576872A (en) | 2019-10-24 | 2019-10-24 | Rack rail train with power switching function and suspension hinge structure |
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| CN110576872A true CN110576872A (en) | 2019-12-17 |
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| CN201911015175.9A Pending CN110576872A (en) | 2019-10-24 | 2019-10-24 | Rack rail train with power switching function and suspension hinge structure |
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| CN111216700A (en) * | 2020-01-08 | 2020-06-02 | 中车株洲电力机车有限公司 | Brake control method and device for rack rail train |
| CN112061147A (en) * | 2020-10-15 | 2020-12-11 | 中车资阳机车有限公司 | Take cogged rail traction function's tourism sightseeing train |
| CN112061146A (en) * | 2020-10-15 | 2020-12-11 | 中车资阳机车有限公司 | Low-floor tourism sightseeing train with toothed rail traction function |
| RU207924U1 (en) * | 2021-06-16 | 2021-11-24 | Общество с ограниченной ответственностью "ЖД ТРАНС" | TWO-STAGE TRACTION GEARBOX |
| CN114104008A (en) * | 2021-12-31 | 2022-03-01 | 沈阳新阳光机电科技有限公司 | Rack rail train with carriage having driving force |
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| CN114312900A (en) * | 2022-01-28 | 2022-04-12 | 中车长春轨道客车股份有限公司 | Brake wheel pair for non-power toothed rail bogie and non-power toothed rail bogie |
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| CN114368407A (en) * | 2022-01-28 | 2022-04-19 | 中车长春轨道客车股份有限公司 | Rack rail car bogie and rail vehicle |
| CN115892100A (en) * | 2022-11-09 | 2023-04-04 | 中铁二院工程集团有限责任公司 | Incomplete load power frame for improving traction force of toothed rail train |
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| CN111216700A (en) * | 2020-01-08 | 2020-06-02 | 中车株洲电力机车有限公司 | Brake control method and device for rack rail train |
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| CN114104008A (en) * | 2021-12-31 | 2022-03-01 | 沈阳新阳光机电科技有限公司 | Rack rail train with carriage having driving force |
| CN114312900A (en) * | 2022-01-28 | 2022-04-12 | 中车长春轨道客车股份有限公司 | Brake wheel pair for non-power toothed rail bogie and non-power toothed rail bogie |
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| CN115892100A (en) * | 2022-11-09 | 2023-04-04 | 中铁二院工程集团有限责任公司 | Incomplete load power frame for improving traction force of toothed rail train |
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| RU227643U1 (en) * | 2024-03-01 | 2024-07-29 | Общество с ограниченной ответственностью "Уральские локомотивы" | TWO-STAGE TRACTION DRIVE REDUCER |
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