CN109398004B - Railway bogie and road and railway dual-purpose vehicle running system - Google Patents
Railway bogie and road and railway dual-purpose vehicle running system Download PDFInfo
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- CN109398004B CN109398004B CN201811445748.7A CN201811445748A CN109398004B CN 109398004 B CN109398004 B CN 109398004B CN 201811445748 A CN201811445748 A CN 201811445748A CN 109398004 B CN109398004 B CN 109398004B
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- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
- B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
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Abstract
The invention relates to a railway bogie and a road-railway dual-purpose vehicle running system comprising the same, wherein the railway bogie comprises a bogie mechanism and a clamp disc type parking locking brake device; the bogie frame in the bogie mechanism is a sunken frame structure with a sunken middle area; the caliper disc type parking locking brake device comprises a fixed support, a brake disc, a brake shoe, a force transmission lever, a unidirectional unlocking oil cylinder and a built-in thrust spring thereof, wherein the fixed support is arranged on a driven axle housing, the brake disc is arranged on a driven axle, the brake shoe is arranged on two sides of the brake disc, two ends of the force transmission lever are respectively connected with the brake shoe and the unidirectional unlocking oil cylinder, and the unidirectional unlocking oil cylinder is arranged on the fixed support. The railway bogie has compact structure, small required installation space and good braking performance, and can be suitable for refitting and arranging various freight automobile chassis, engineering automobile chassis and railway engineering automobile chassis.
Description
Technical Field
The invention relates to a railway bogie and a road-railway dual-purpose vehicle running system comprising the same.
Background
Railway bogies refer to devices that can run and adaptively steer on a railway track. The highway and railway dual-purpose vehicle is mainly developed for meeting the self-running requirement of railway maintenance and overhaul construction, and is suitable for running of a railway maintenance and overhaul construction vehicle and traction of other vehicles.
However, the conventional highway and railway dual-purpose vehicle adopts a common self-propelled bogie, has poor braking performance, requires large height space for installation and arrangement, is only suitable for engineering automobile chassis, and has a small application range.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the railway bogie with compact structure, small required installation space and good braking performance and the road-railway dual-purpose vehicle running system comprising the railway bogie.
The technical scheme for solving the technical problems is as follows:
a railway bogie comprises a bogie mechanism and a clamp disc type parking locking brake device;
the bogie mechanism comprises a bogie framework, a wheel pair assembly and a rotary steering assembly, wherein the bogie framework is of a sunken frame structure with a sunken middle area; the wheel set assembly comprises a driving wheel pair and a driven wheel pair, and the driving wheel pair is arranged at one end of the bogie frame; the driven wheel pair is arranged at the other end of the bogie frame, the driven wheel pair comprises a driven axle housing, a driven axle and two driven wheels, the driven axle is connected with the two driven wheels, the driven axle housing is arranged on the driven axle, the bogie frame is respectively arranged on the driven axle housing and the driving axle housing of the driving wheel pair, the rotary steering assembly comprises a fixing frame, a rotary core disc, a rotary frame and a side bearing structure, the fixing frame is arranged on the middle area of the bogie frame, the rotary core disc is arranged on the fixing frame, the rotary core disc is provided with a rotary core shaft, the rotary frame is arranged on the rotary core shaft, and the side bearing structure is arranged between the rotary frame and the fixing frame;
the caliper disc type parking locking brake device comprises a fixed support, a brake disc, a brake shoe, a force transmission lever and a one-way unlocking cylinder with a thrust spring arranged inside, wherein the fixed support is arranged on the driven axle housing, the brake disc is arranged on the driven axle, the brake shoe is arranged on two sides of the brake disc, two ends of the force transmission lever are respectively connected with the brake shoe and a piston rod of the one-way unlocking cylinder, and the one-way unlocking cylinder is arranged on the fixed support;
the thrust spring always pushes the force transmission lever and the brake shoe to lock the brake disc under the condition that the unidirectional unlocking oil cylinder does not have pressure oil input to generate unlocking action, so that the unidirectional unlocking oil cylinder is used for unpowered parking brake; the thrust spring and the brake shoe are pulled to unlock under the condition that the unidirectional unlocking oil cylinder obtains pressure oil input, so that the brake caliper disc is loosened for brake unlocking.
The beneficial effects of the invention are as follows:
the railway bogie has the advantages of compact structure, small required installation space and good braking performance, can be suitable for refitting and arranging various freight automobile chassis, engineering automobile chassis and railway engineering automobile chassis, has wide universality and convenient use, and can meet the refitting and use requirements of various public and iron chassis.
In one embodiment, the driving wheel pair comprises a driving axle and two driving wheels, the driving axle comprises a driving axle shaft, a driving axle housing and a gear box, the driving axle shaft is connected with the two driving wheels, the driving axle shaft is sleeved with the driving axle shaft, the gear box is arranged on the driving axle housing, and gears in the gear box are meshed with gears on the driving axle shaft.
In one embodiment, the railway bogie further comprises a hydraulic driving mechanism, the hydraulic driving mechanism comprises a hydraulic driving motor, a hydraulic pump station, an oil supply pipeline and a controller, the hydraulic driving motor is connected with the gear box to drive the driving axle to rotate, the hydraulic pump station comprises an oil tank and a servo variable pump, the oil tank supplies oil to the hydraulic driving motor through the servo variable pump and the oil supply pipeline, and the controller is respectively connected with the servo variable pump and an electromagnetic valve on the oil supply pipeline.
In one embodiment, the servo variable pump and the oil supply pipeline further supply oil to the one-way unlocking oil cylinder, and the controller is respectively connected with the servo variable pump and the electromagnetic valve on the oil supply pipeline to supply oil to the one-way unlocking oil cylinder.
In one embodiment, the hydraulic drive motor is a variable displacement motor that is matched to the servo variable displacement pump.
In one embodiment, the bogie mechanism further comprises a vibration reduction support provided at the bottom of the fixed frame or the bogie frame.
A road and railway dual-purpose vehicle running system, which comprises a wheel chassis, a bogie retracting mechanism and a railway bogie as described in any one of the above;
the railway bogie is arranged below the girder of the wheel type chassis;
the bogie retraction mechanism is fixedly arranged on a girder of the wheel type chassis and comprises a retraction swing arm and a hydraulic driving oil cylinder, one end of the retraction swing arm is hinged with a fixed support of the girder of the wheel type chassis, the other end of the retraction swing arm is hinged with the revolving frame, and the hydraulic driving oil cylinder is hinged on a hinge hole in the middle of the retraction swing arm and is used for driving the railway bogie to retract;
under a highway running state, the bogie retracting mechanism retracts the railway bogie to the wheel pair assembly to be far away from a highway pavement, and chassis wheels of the wheel type chassis run along the highway pavement; in a railway running state, the bogie retracting mechanism drops the railway bogie to the wheel pair assembly to be placed on a rail so as to support a vehicle body and walk, and the wheel chassis is far away from the rail.
Drawings
FIG. 1 is a schematic structural view of a truck mechanism in a railway truck drive system of an embodiment;
FIG. 2 is another perspective structural schematic view of the truck mechanism of FIG. 1;
FIG. 3 is a schematic view of a cross-sectional A-A configuration of the bogie mechanism of FIG. 2;
FIG. 4 is a schematic view of a further view of the bogie mechanism of FIG. 1;
FIG. 5 is a schematic view of a B-B cross-sectional configuration of the truck mechanism of FIG. 4;
FIG. 6 is a schematic illustration of the brake rigging in the truck assembly of FIG. 1;
FIG. 7 is a schematic structural view of a highway and railway vehicle including the bogie mechanism of FIG. 1;
FIG. 8 is a schematic view of the railway running state structure of the highway and railway dual-purpose vehicle of FIG. 7;
FIG. 9 is a schematic view of the highway running state structure of the highway and railway dual-purpose vehicle of FIG. 8;
fig. 10 is a schematic route view of a hydraulic drive control mechanism of the highway and railway vehicle in fig. 1.
In the drawings, the list of components represented by the various numbers is as follows:
100. the steering frame comprises a steering frame mechanism, 110, a steering frame, 120, a wheel pair assembly, 121, a driving wheel pair, 122, a driven wheel pair, 130, a rotary steering assembly, 131, a fixed frame, 132, a rotary core disc, 133, a rotary frame, 134, a side bearing structure, 140, a hydraulic motor driving motor, 150, a shock absorption support, 160, a clamp disc type parking locking brake device, 161, a brake clamp disc, 162, a brake shoe, 163, a force transmission lever, 164, a unidirectional unlocking oil cylinder, 1640, a thrust spring, 200, a steering frame retracting mechanism, 300 and a hydraulic pump station.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1-5, a railway truck in accordance with one embodiment includes a truck mechanism 100 and a clamp-on parking lock brake apparatus 160.
In the present embodiment, the bogie mechanism 100 includes a bogie frame 100, a wheel set assembly 120 and a swing steering assembly 130. The bogie frame 110 is a depressed frame structure with a depressed central region as a whole. The wheel set assembly 120 includes a driving wheel set 121 and a driven wheel set 122, the driving wheel set 121 is provided at one end of the bogie frame 110, and the driven wheel set 122 is provided at the other end of the bogie frame 110. The driven wheel pair 122 includes a driven axle housing, a driven axle and two driven wheels, the driven axle is connected to the two driven wheels, the driven axle housing is provided on the driven axle, and the bogie frame 110 is provided on the driven axle housing and the driving axle housing of the driving wheel pair, respectively. The rotary steering assembly 130 includes a fixing frame 131, a rotary core disc 132, a rotary frame 133, and a side bearing structure 134, the fixing frame 131 is disposed on a middle region of the bogie frame 110, the rotary core disc 132 is disposed on the fixing frame 131 and preferably is a central region, the rotary core disc 132 is provided with a rotary mandrel, the rotary frame 133 is disposed on the rotary mandrel, and the side bearing structure 134 is disposed between the rotary frame 133 and the fixing frame 131 to peripherally support the rotary frame 133, thereby improving stability.
With further reference to fig. 6, the disc parking lock brake 160 includes a fixed support, a brake disc 161, a brake shoe 162, a force transmission lever 163, and a one-way unlocking cylinder 164 with a thrust spring 1640 incorporated therein. The fixed support is arranged on the driven axle housing, the brake disc 161 is arranged on the driven axle, the brake shoes 162 are arranged on two sides of the brake disc 161, two ends of the force transmission lever 163 are respectively connected with the brake shoes 162 and piston rods of the unidirectional unlocking oil cylinders 164, and the unidirectional unlocking oil cylinders 164 are arranged on the fixed support. The thrust spring 1640 always pushes the force transmission lever 163 and the brake shoe 162 to lock the brake caliper 161 for the unpowered parking brake when the unlocking action is generated by the non-pressure oil input of the unidirectional unlocking cylinder 164. The thrust spring 1640 and brake shoe 162 are pulled open to unlock upon pressure oil input from the one-way unlocking cylinder 164 to release the brake caliper 161 for brake unlocking.
The railway bogie of the embodiment has compact structure, can effectively reduce the whole height, has small required installation space and good braking performance, can be suitable for refitting and arranging various freight automobile chassis, engineering automobile chassis and railway engineering automobile chassis, has wide universality and convenient use, and can meet the refitting and use requirements of various public and iron chassis.
Preferably, the drive wheel pair 121 includes a drive axle and two drive wheels. The drive axle comprises a drive axle shaft, a drive axle housing and a gear box, wherein the drive axle shaft is connected with two driving wheels, the drive axle shaft is sleeved on the drive axle housing, the gear box is arranged on the drive axle housing, and gears in the gear box are meshed with gears on the drive axle shaft. The driving axle housing is provided with a first bearing seat, the driven axle housing of the driven wheel pair is provided with a second bearing seat, one end of the bogie frame 110 is arranged on the first bearing seat, and the other end of the bogie frame 110 is arranged on the second bearing seat, so that stability is improved.
Further, the bogie mechanism 100 further comprises a vibration reduction support 150, and the vibration reduction support 150 is disposed at the bottom of the fixed bracket 131 or the bogie frame 110. Specifically, the vibration reduction support 150 has a plurality of vibration reduction supports 150, and the vibration reduction supports 150 are uniformly distributed at four end angular positions of the fixing bracket 131, so as to improve the vibration reduction effect.
Further, referring to fig. 10, the railway bogie of the present embodiment further includes a hydraulic driving mechanism. The hydraulic drive mechanism comprises a hydraulic drive motor, a hydraulic pump station 300, an oil supply pipeline and a controller. The hydraulic drive motor is connected to the gear box to drive the drive axle to rotate, the hydraulic pump station 300 includes an oil tank and a servo variable pump, the oil tank supplies oil to the hydraulic drive motor through the servo variable pump and an oil supply pipeline, and the controller is respectively connected to each electromagnetic valve on the servo variable pump and the oil supply pipeline (for example, a two-position electromagnetic valve on a brake circuit, a two-position electromagnetic valve on a bogie retracting circuit, and a three-position electromagnetic valve on a bogie mechanism driving circuit). The hydraulic driving motor is a variable motor matched with the servo variable pump.
Further, the servo variable pump and oil supply line also supply oil to the one-way unlocking cylinder 164. The controller is connected to the servo variable pump and each solenoid valve on the oil supply line to supply oil to the one-way unlocking cylinder 164.
Compared with a railway bogie driven by a conventional diesel engine or traction motor, the railway bogie driving system of the embodiment adopts a hydraulic pump station matched with a servo variable pump to supply oil to the hydraulic driving motor so as to drive the bogie to run along a rail, and can provide continuous traction force and improve the running speed.
Referring further to fig. 7 to 9, the present invention further provides a road-rail dual-purpose vehicle running system, which comprises a wheel chassis, a bogie retraction mechanism 200 and the railway bogie. The bogie mechanism 100 is provided below the girder of the wheel chassis. The bogie retracting mechanism 200 is fixedly arranged on a girder of the wheel chassis, the bogie retracting mechanism 200 comprises a retracting swing arm and a hydraulic driving oil cylinder, one end of the retracting swing arm is hinged with a fixed support of the girder of the wheel chassis, the other end of the retracting swing arm is hinged with a rotary frame, and the hydraulic driving oil cylinder is hinged on a hinge hole in the middle of the retracting swing arm and is used for driving the bogie mechanism 100 to retract. Specifically, a hinge seat is provided on the top wall of the swing frame 133. In other embodiments, the hinge base may be further provided on a side wall of the turret 133, so that the whole mechanism is more compact and installation space can be further saved.
In the highway operating condition, the truck retraction mechanism 200 retracts the truck mechanism 100 to the wheel set assembly 120 away from the highway surface along which the chassis wheels of the wheeled chassis travel. In the railway operating condition, the truck retraction mechanism drops the truck mechanism 100 to the wheelset assembly 120 to rest on the rails to support the vehicle body and travel, with the wheeled chassis away from the rails.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (3)
1. The railway bogie is characterized by comprising a bogie mechanism and a clamp disc type parking locking brake device;
the bogie mechanism comprises a bogie framework, a wheel pair assembly and a rotary steering assembly, wherein the bogie framework is of a sunken frame structure with a sunken middle area; the wheel set assembly comprises a driving wheel pair and a driven wheel pair, and the driving wheel pair is arranged at one end of the bogie frame; the driven wheel pair is arranged at the other end of the bogie frame, the driven wheel pair comprises a driven axle housing, a driven axle and two driven wheels, the driven axle is connected with the two driven wheels, the driven axle housing is arranged on the driven axle, the bogie frame is respectively arranged on the driven axle housing and the driving axle housing of the driving wheel pair, the rotary steering assembly comprises a fixing frame, a rotary core disc, a rotary frame and a side bearing structure, the fixing frame is arranged on the middle area of the bogie frame, the rotary core disc is arranged on the fixing frame, the rotary core disc is provided with a rotary core shaft, the rotary frame is arranged on the rotary core shaft, and the side bearing structure is arranged between the rotary frame and the fixing frame; the driving wheel pair comprises a driving axle and two driving wheels, the driving axle comprises a driving axle shaft, a driving axle housing and a gear box, the driving axle shaft is connected with the two driving wheels, the driving axle shaft is sleeved with the driving axle shaft, the gear box is arranged on the driving axle housing, and gears in the gear box are meshed with gears on the driving axle shaft;
the caliper disc type parking locking brake device comprises a fixed support, a brake disc, a brake shoe, a force transmission lever and a one-way unlocking cylinder with a thrust spring arranged inside, wherein the fixed support is arranged on the driven axle housing, the brake disc is arranged on the driven axle, the brake shoe is arranged on two sides of the brake disc, two ends of the force transmission lever are respectively connected with the brake shoe and a piston rod of the one-way unlocking cylinder, and the one-way unlocking cylinder is arranged on the fixed support; the thrust spring always pushes the force transmission lever and the brake shoe to lock the brake disc under the condition that the unidirectional unlocking oil cylinder does not have pressure oil input to generate unlocking action, so that the unidirectional unlocking oil cylinder is used for unpowered parking brake; the thrust spring and the brake shoe are pulled to unlock under the condition that the unidirectional unlocking oil cylinder obtains pressure oil input so as to release the brake caliper disc for brake unlocking;
the railway bogie further comprises a hydraulic driving mechanism, a hydraulic pump station, an oil supply pipeline and a controller, wherein the hydraulic driving mechanism comprises a hydraulic driving motor, the hydraulic pump station, the oil supply pipeline and the controller, the hydraulic driving motor is connected with the gear box to drive the driving axle to rotate, the hydraulic pump station comprises an oil tank and a servo variable pump, the oil tank supplies oil to the hydraulic driving motor through the servo variable pump and the oil supply pipeline, and the controller is respectively connected with the servo variable pump and an electromagnetic valve on the oil supply pipeline; the servo variable pump and the oil supply pipeline also supply oil to the one-way unlocking oil cylinder, and the controller is respectively connected with the servo variable pump and the electromagnetic valve on the oil supply pipeline to supply oil to the one-way unlocking oil cylinder; the hydraulic drive motor is a variable motor matched with the servo variable pump.
2. The railway truck of claim 1, wherein the truck mechanism further comprises a vibration-dampening mount, the vibration-dampening mount being coupled to the mount or the truck frame.
3. A road and rail vehicle travel system comprising a wheeled chassis, a bogie retraction mechanism and a railway bogie as claimed in claim 1 or 2;
the railway bogie is arranged below the girder of the wheel type chassis;
the bogie retraction mechanism is fixedly arranged on a girder of the wheel type chassis and comprises a retraction swing arm and a hydraulic driving oil cylinder, one end of the retraction swing arm is hinged with a fixed support of the girder of the wheel type chassis, the other end of the retraction swing arm is hinged with the revolving frame, and the hydraulic driving oil cylinder is hinged on a hinge hole in the middle of the retraction swing arm and is used for driving the railway bogie to retract;
under a highway running state, the bogie retracting mechanism retracts the railway bogie to the wheel pair assembly to be far away from a highway pavement, and chassis wheels of the wheel type chassis run along the highway pavement; in a railway running state, the bogie retracting mechanism drops the railway bogie to the wheel pair assembly to be placed on a rail so as to support a vehicle body and walk, and the wheel type chassis wheels are far away from the rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445748.7A CN109398004B (en) | 2018-11-29 | 2018-11-29 | Railway bogie and road and railway dual-purpose vehicle running system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445748.7A CN109398004B (en) | 2018-11-29 | 2018-11-29 | Railway bogie and road and railway dual-purpose vehicle running system |
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| Publication Number | Publication Date |
|---|---|
| CN109398004A CN109398004A (en) | 2019-03-01 |
| CN109398004B true CN109398004B (en) | 2023-12-26 |
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| CN201811445748.7A Active CN109398004B (en) | 2018-11-29 | 2018-11-29 | Railway bogie and road and railway dual-purpose vehicle running system |
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| CN205112893U (en) * | 2015-11-11 | 2016-03-30 | 武汉理工大学 | Dual -purpose cement concrete trucd mixer of rail |
| CN105501011A (en) * | 2015-12-22 | 2016-04-20 | 常州市瑞泰工程机械有限公司 | Railway running gear of road-railer |
| EP3305562A1 (en) * | 2016-09-07 | 2018-04-11 | Maintenance du Centre | Vehicle with nacelle for intervention on railway track |
| CN107053979A (en) * | 2017-04-17 | 2017-08-18 | 重庆交通大学 | Combined automatic transfer vehicle |
| CN107053980A (en) * | 2017-04-21 | 2017-08-18 | 石家庄铁道大学 | Combined snow removing vehicle hydraulic system |
| CN207156868U (en) * | 2017-08-26 | 2018-03-30 | 湖北时瑞达重型工程机械有限公司 | A kind of transmission system of combined tractor |
| CN107571693A (en) * | 2017-09-20 | 2018-01-12 | 沈阳日上铁路设备厂 | Can traversing combined tractor |
| CN107757272A (en) * | 2017-09-30 | 2018-03-06 | 苏州大方特种车股份有限公司 | A kind of road rail vehicle |
| CN108715117A (en) * | 2018-07-10 | 2018-10-30 | 徐工集团工程机械有限公司 | A kind of dual-purpose assembly of rail |
| CN108773248A (en) * | 2018-07-27 | 2018-11-09 | 中车长江车辆有限公司 | A kind of road rail vehicle |
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