CN109398006B - Railway bogie driving system - Google Patents
Railway bogie driving system Download PDFInfo
- Publication number
- CN109398006B CN109398006B CN201811447427.0A CN201811447427A CN109398006B CN 109398006 B CN109398006 B CN 109398006B CN 201811447427 A CN201811447427 A CN 201811447427A CN 109398006 B CN109398006 B CN 109398006B
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- bogie
- driving
- frame
- hydraulic
- wheel pair
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000009467 reduction Effects 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to a railway bogie driving system, which comprises a bogie mechanism and a hydraulic driving control mechanism; the bogie frame in the bogie mechanism is a sunken frame structure with a sunken middle area; the drive axle in the drive wheel pair is provided with a drive axle housing and a gear box; the hydraulic driving motor in the hydraulic driving mechanism is connected with the gear box, 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 an oil supply pipeline, an electromagnetic valve is arranged on the oil supply pipeline, and the controller is respectively connected with the servo variable pump and the electromagnetic valve. The railway bogie driving system adopts the hydraulic pump station matched with the servo variable pump to supply oil to the hydraulic driving motor so as to drive the bogie to run along the rail, is convenient for continuous traction, has small required installation space, and can meet the refitting and use requirements of various public and iron chassis.
Description
Technical Field
The present invention relates to a railway bogie drive system.
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 a device 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, conventional highway and railway vehicles mostly adopt non-rail wheel sets with rail wheel guiding and chassis tires self-running, and have the advantages of smaller traction force, low running speed and rapid tire abrasion. In addition, the conventional railway bogie is driven by a self-provided diesel engine or traction motor, and when the conventional railway bogie is driven by the diesel engine or traction motor, the space required by the bogie installation and arrangement is large, the operation is complex, and the conventional railway bogie is only suitable for railway traction locomotive chassis and railway engineering chassis, is not suitable for railway road-surfing refitting of various freight car chassis and engineering car chassis, and has a small application range.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a railway bogie driving system which has a compact structure and small installation space, is suitable for refitting and arranging various automobile chassis, and improves the application range.
The technical scheme for solving the technical problems is as follows:
a railway bogie driving system comprises a bogie mechanism and a hydraulic driving control mechanism;
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 set and a driven wheel set, the driving wheel set is arranged at one end of the bogie frame, the driving wheel set 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 driven wheel pair is arranged at the other end of the bogie frame; the rotary steering assembly comprises a fixed frame, a rotary core disc, a rotary frame and a side bearing structure, wherein the fixed frame is arranged in the middle area of the bogie frame, the rotary core disc is arranged on the fixed 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 fixed frame;
the hydraulic driving mechanism comprises a hydraulic driving motor, a hydraulic pump station, an oil supply pipeline and a controller, wherein 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, an electromagnetic valve is arranged on the oil supply pipeline, and the controller is respectively connected with the servo variable pump and the electromagnetic valve.
The beneficial effects of the invention are as follows:
compared with a railway bogie driven by a conventional diesel engine or traction motor, the railway bogie driving system adopts a hydraulic pump station 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 and improve the running speed. In addition, compared with the conventional bogie driving system, the railway bogie driving system has the advantages of more compact structure, small required installation space and simple operation and control, can be suitable for refitting arrangement of various freight car chassis, engineering car chassis and railway engineering car chassis, has wide universality and convenient use, and can meet refitting use requirements of various public and iron chassis.
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 driving axle housing is provided with a first bearing seat, the axle housing of the driven wheel pair is provided with a second bearing seat, one end of the bogie frame is arranged on the first bearing seat, and the other end of the bogie frame is arranged on the second bearing seat.
In one embodiment, the railway truck driving system further comprises a vibration reduction support, wherein the vibration reduction support is arranged at the bottom of the fixed frame or the truck frame.
In one embodiment, the vibration reduction support is multiple, and the vibration reduction support is uniformly distributed at four end angle positions of the fixing frame.
In one embodiment, a brake device is further arranged on the driven axle of the driven wheel pair.
In one embodiment, the brake device is provided in a central region of the driven axle.
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 structural view of a highway and railway vehicle including the bogie mechanism of FIG. 1;
FIG. 7 is a schematic view of the railway running state structure of the highway and railway dual-purpose vehicle of FIG. 6;
FIG. 8 is a schematic view of the highway running state structure of the highway and railway dual-purpose vehicle of FIG. 6;
fig. 9 is a schematic route diagram of a hydraulic drive control mechanism in a railway truck drive system of an embodiment.
In the drawings, the list of components represented by the various numbers is as follows:
100. the steering system comprises a steering frame mechanism, 110, a steering frame, 120, a wheel set assembly, 121, a driving wheel set, 122, a driven wheel set, 130, a rotary steering assembly, 131, a fixing frame, 132, a rotary core disc, 133, a rotary frame, 134, a side bearing structure, 140, a hydraulic motor driving motor, 150, a damping support, 160, a brake braking device, 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 drive system of an embodiment includes a truck mechanism 100 and a hydraulic drive control mechanism.
In the present embodiment, the bogie mechanism 100 includes a bogie frame 110, a wheel set assembly 120, and a swing steering assembly 130, and the bogie frame 110 is a depressed frame structure having a depressed central region as a whole. The wheel set assembly 120 comprises a driving wheel set 121 and a driven wheel set 122, the driving wheel set 121 is arranged at one end of the bogie frame 110, the driving wheel set 121 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 on the driving axle housing, 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 driven wheel pair 122 is provided at the other end of the bogie frame 110. The rotary steering assembly 130 comprises a fixing frame 121, a rotary core disc 132, a rotary frame 133 and a side bearing structure 134, the fixing frame 131 is arranged on the middle area of the bogie frame 110, the rotary core disc 132 is arranged on the fixing frame 131, the rotary core disc 132 is provided with a rotary mandrel, the rotary frame 133 is arranged on the rotary mandrel, and the side bearing structure 134 is arranged between the rotary frame 133 and the fixing frame 131 so as to peripherally support the rotary frame 133 and improve the stability of the whole mechanism.
With further reference to fig. 9, the hydraulic drive mechanism includes a hydraulic drive motor 140, a hydraulic pump station, an oil supply line, and a controller. The hydraulic drive motor is connected with the gear box to drive the drive axle to rotate. The hydraulic pump station includes an oil tank and a servo variable pump, the oil tank supplies oil to the hydraulic driving motor 140 through the servo variable pump and an oil supply pipeline, the oil supply pipeline is provided with a plurality of electromagnetic valves (for example, a two-position electromagnetic valve on a brake loop, a two-position electromagnetic valve on a bogie retracting loop and a three-position electromagnetic valve on a bogie mechanism driving loop), and the controller is respectively connected with the servo variable pump and each electromagnetic valve, so that the automatic control oil supply is realized to drive, accelerate and decelerate the steering mechanism 100.
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.
In addition, compared with the conventional bogie driving system, the railway bogie driving system of the embodiment has the advantages of more compact structure, effective reduction of the whole height, small required installation space and simple operation and control, and can be suitable for refitting and arranging various freight car chassis, engineering car chassis and railway engineering car chassis, has wide universality and convenient use, and can meet the refitting and use requirements of various public and railway chassis.
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. The vibration reduction support 150 can have a plurality of, and a plurality of vibration reduction support 150 evenly distributed are in four end angular positions of mount, improve the vibration reduction effect.
Preferably, 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 the stability of the whole bogie mechanism is ensured.
Preferably, the hydraulic drive motor 140 is a variable displacement motor that is matched to a servo variable displacement pump to meet traction needs.
Further, 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 disposed on the driven axle, and the bogie frame 110 is disposed on the driven axle housing and the driving axle housing of the driving wheel pair 121, respectively.
Further, a brake 160 is also provided on the driven axle of driven wheel pair 122. The brake device is preferably a caliper disc type parking locking brake device and is preferably arranged in the middle area of the driven axle, so that the braking performance is improved. The caliper disc type parking locking brake device comprises a fixed support, a brake caliper disc, a brake shoe, a force transmission lever and a one-way unlocking cylinder with a thrust spring. The fixed support is arranged on the driven axle housing, the brake caliper disc is arranged on the driven axle, the brake shoes are arranged on two sides of the brake caliper disc, two ends of the force transmission lever are respectively connected with the brake shoes and piston rods of the unidirectional unlocking cylinders, and the unidirectional unlocking cylinders are arranged on the fixed support. The thrust spring always pushes the force transmission lever and the brake shoe to lock the brake caliper disc under the condition that the unidirectional unlocking oil cylinder does not have pressure oil input to generate unlocking action, and 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 disc for brake unlocking.
Referring to fig. 6 to 8, the present invention further provides a road-railway dual-purpose vehicle running system, which comprises a wheel chassis, a bogie retracting mechanism 200 and the railway bogie driving system. 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 type 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 type 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 railway bogie to retract. 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 retractor 200 drops the truck 100 onto the wheel set assembly 120 on the rail to support the vehicle body and travel, and the wheeled chassis is spaced away from the rail.
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.
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. A railway bogie driving system, characterized by comprising a bogie mechanism and a hydraulic driving control mechanism;
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 driving wheel pair assembly comprises a driving wheel pair and a driven wheel pair, the driving wheel pair is arranged at one end of the bogie 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 driven wheel pair is arranged at the other end of the bogie frame; the rotary steering assembly comprises a fixed frame, a rotary core disc, a rotary frame and a side bearing structure, wherein the fixed frame is arranged in the middle area of the bogie frame, the rotary core disc is arranged on the fixed 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 fixed frame; the driving axle housing is provided with a first bearing seat, the axle housing of the driven wheel pair is provided with a second bearing seat, one end of the bogie frame is arranged on the first bearing seat, and the other end of the bogie frame is arranged on the second bearing seat;
the hydraulic drive control mechanism comprises a hydraulic drive motor, a hydraulic pump station, an oil supply pipeline and a controller, wherein the hydraulic drive motor is connected with the gear box to drive the drive axle to rotate, the hydraulic pump station comprises an oil tank and a servo variable pump, the oil tank supplies oil to the hydraulic drive motor through the servo variable pump and the oil supply pipeline, the oil supply pipeline is provided with an electromagnetic valve, and the controller is respectively connected with the servo variable pump and the electromagnetic valve; the hydraulic driving motor is a variable motor matched with the servo variable pump;
the railway bogie driving system also comprises a vibration reduction support saddle, wherein the vibration reduction support saddle is arranged at the bottom of the fixed frame or the bogie frame; the vibration reduction supports are multiple, and the vibration reduction supports are uniformly distributed at four end angle positions of the fixing frame.
2. The railway truck drive system of claim 1 wherein the driven axles of the driven wheel pair are further provided with a brake.
3. The railway truck drive system of claim 2 wherein the brake is provided in a central region of the driven axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811447427.0A CN109398006B (en) | 2018-11-29 | 2018-11-29 | Railway bogie driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811447427.0A CN109398006B (en) | 2018-11-29 | 2018-11-29 | Railway bogie driving system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109398006A CN109398006A (en) | 2019-03-01 |
| CN109398006B true CN109398006B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811447427.0A Active CN109398006B (en) | 2018-11-29 | 2018-11-29 | Railway bogie driving system |
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| CN (1) | CN109398006B (en) |
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| CN107571693A (en) * | 2017-09-20 | 2018-01-12 | 沈阳日上铁路设备厂 | Can traversing combined tractor |
| CN108313940A (en) * | 2018-03-27 | 2018-07-24 | 中铁建电气化局集团南方工程有限公司 | A kind of full landform traveling light job vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109398006A (en) | 2019-03-01 |
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