CN109204359B - Rail vehicle and steering wheel structure thereof - Google Patents
Rail vehicle and steering wheel structure thereof Download PDFInfo
- Publication number
- CN109204359B CN109204359B CN201811131189.2A CN201811131189A CN109204359B CN 109204359 B CN109204359 B CN 109204359B CN 201811131189 A CN201811131189 A CN 201811131189A CN 109204359 B CN109204359 B CN 109204359B
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- frame
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- 238000003825 pressing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F3/00—Types of 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
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
Abstract
The invention discloses a railway vehicle and a steering wheel structure thereof, wherein a fork frame of the steering wheel structure is arranged on a transverse frame of a steering wheel bracket and is in rotary connection with the transverse frame through a longitudinal swinging pin shaft, a slewing bearing is arranged on the fork frame, an outer ring of the slewing bearing is fixedly connected with the fork frame, an inner ring of the slewing bearing is used for being connected with a vehicle frame, a driving wheel group is arranged between two vertical frames of the steering wheel bracket and is in rotary connection with the vertical frames at two sides through transverse steering wheel shafts, connecting frames are arranged at the bottom ends of the two vertical frames, a tensioning wheel frame is arranged at the inner side of the connecting frames, the tensioning wheel frame comprises a vertical plate and transverse plates arranged at the upper end and the lower end of the vertical plate, the tensioning wheel is arranged between the two transverse plates, the transverse plates are connected with the tensioning wheel through vertical tensioning wheel pin shafts, and the tensioning wheel is pressed on a rail elevation; when the steering wheel structure is used, the installation error of each part can be eliminated through the swinging of the fork frame relative to the steering wheel bracket, the centering of the rail vehicle during running is ensured, the running sliding resistance is reduced, and the running stability and the running efficiency of the vehicle are improved.
Description
Technical Field
The invention relates to the technical field of railway vehicle steering, in particular to a steering wheel structure of a railway vehicle. The invention also relates to a rail vehicle comprising a steering wheel arrangement as described above.
Background
Rail vehicles are increasingly used in public transportation, shop transportation and other fields, wherein a steering wheel structure is one of the components of the rail vehicles, and has important influence on the transportation safety and stability of the rail vehicles.
At present, a steering wheel structure generally adopts a double-track unpowered or monorail powered structure, wherein the double-track unpowered steering mechanism has low cost and reliable steering, but the track cost is high, the monorail powered steering mechanism has complex structure and high cost, the matching of the steering angle of the unpowered steering mechanism and the track is not high, the reduction of the track width is not facilitated, meanwhile, the running resistance of the vehicle is greatly increased when the matching of the steering angle is insufficient, the wheel slippage is increased, and the running efficiency and the running stability of the vehicle are reduced.
The patent with the application number of CN201711088121.6 discloses a steering wheel assembly of a rail logistics trolley, which solves the problem that the steering wheels of the rail transportation trolley cannot pass through a curve to cause blockage, so that the transportation rail is smooth, but the vehicle running centering performance is greatly influenced by the coplanar error of front and rear wheel installation, the vehicle is difficult to keep running in the middle of the rail, and the steering wheels are difficult to ensure to be parallel to the tangential direction of the rail; in the forward or backward process of the vehicle, the stress of the guide wheels is inconsistent, so that the guide wheels are easy to deflect, and when the guide wheels are inappropriately deflected, the running stability and the running efficiency of the vehicle are affected to different degrees; in addition, when different vehicles and rails are matched, elastic potential energy elements with different rigidities are required to be selected, so that the production is inconvenient.
Therefore, how to solve the problems of poor running stability and low efficiency and the like caused by poor neutrality when the railway vehicle runs is a technical problem which needs to be solved by the technicians in the field at present.
Disclosure of Invention
The invention aims to provide a steering wheel structure of a railway vehicle, which can ensure the centering of the railway vehicle during running, reduce running slip resistance and improve the running stability and running efficiency of the vehicle. Another object of the present invention is to provide a railway vehicle comprising the above steering wheel structure.
In order to solve the technical problems, the invention provides a steering wheel structure of a railway vehicle, which comprises a steering wheel bracket, a fork frame, a slewing bearing, a running wheel group, a connecting frame, a tensioning wheel frame and a tensioning wheel,
the steering wheel bracket comprises a transverse frame and two vertical frames symmetrically arranged at the left end and the right end of the transverse frame, the fork frame is arranged on the transverse frame and is rotationally connected with the transverse frame through a swing pin shaft which is longitudinally arranged, the slewing bearing is arranged on the fork frame, the outer ring of the slewing bearing is fixedly connected with the fork frame, the inner ring of the slewing bearing is used for being connected with a frame, the running wheel set is arranged between the two vertical frames and is rotationally connected with the vertical frames at the two sides through a transverse steering wheel shaft, the running wheel set is used for being arranged on a track to be supported by the track and rotationally run along the track,
the two vertical frame bottom ends all are equipped with the link, the link is located the track both sides, the tensioning wheel carrier is installed the inboard of link, the tensioning wheel carrier includes the riser and establishes the diaphragm at both ends about the riser, the take-up pulley is established two between the diaphragm, just the diaphragm with the take-up pulley passes through vertical take-up pulley round pin hub connection, and will the take-up pulley compresses tightly on the track facade.
Preferably, a longitudinal arc-shaped protrusion is arranged in the middle of the upper surface of the cross frame and is used for propping against the lower surface of the middle part of the fork frame, so that a swinging gap is formed between the upper surface of the cross frame and the lower surface of the fork frame.
Preferably, the steering wheel shaft is fixedly connected with the running wheel set, and the outer end part of the steering wheel shaft extends out of the vertical frame and is used for being connected with a rotating power device.
Preferably, the bottom end of the vertical frame is bent outwards to form a support plate, a first connecting plate matched with the support plate is arranged at the top end of the connecting frame, and the first connecting plate is connected with the support plate through bolts.
Preferably, the connecting frame and the steering wheel bracket are integrally formed.
Preferably, the tensioning wheel frame is rotationally connected with the connecting frame through a vertical tensioning swing pin shaft, a transverse through hole is formed in the connecting frame, a pressing plate is fixedly arranged outside the connecting frame, a tensioning threaded hole is formed in the pressing plate and corresponds to the transverse through hole, the tensioning wheel frame further comprises a ball head ejector rod, a tensioning spring and a tensioning adjusting bolt, the round head of the ball head ejector rod abuts against the vertical plate, the rod portion of the ball head ejector rod is inserted into the transverse through hole, the tensioning spring is arranged in the transverse through hole, one end of the tensioning spring abuts against the rod portion of the ball head ejector rod, the tensioning adjusting bolt is connected with the tensioning threaded hole in a matched mode, the end of the screw rod of the tensioning adjusting bolt extends into the transverse through hole and abuts against the other end of the tensioning spring, and the ball head ejector rod can push the tensioning wheel frame to rotate around the tensioning swing pin shaft through compression of the tensioning spring, and the tensioning wheel is pressed on a track vertical face.
Preferably, the device further comprises a step push rod arranged in the transverse through hole, a guide hole is formed in the rod portion of the ball head push rod, the small-diameter end of the step push rod penetrates through the tensioning spring to be inserted into the guide hole, and the screw end of the tensioning adjusting bolt abuts against the large-diameter end of the step push rod.
Preferably, the connecting frame comprises a second connecting plate which is vertically arranged, the transverse through hole is formed in the second connecting plate, a vertical through hole which is used for being connected with the tensioning wheel frame is formed in the inner side of the second connecting plate, and the axis of the transverse through hole is not intersected with the axis of the vertical through hole; the tensioning wheel frame is characterized in that one end of each transverse plate is provided with a first pin hole matched with the corresponding vertical through hole, the other end of each transverse plate is provided with a second pin hole for installing the tensioning wheel, and two ends of each vertical plate of the tensioning wheel frame are respectively connected to the middle parts of the two transverse plates.
Preferably, two tensioning wheel frames are installed on each connecting frame, and the two tensioning wheel frames positioned on one side of the track are symmetrically arranged in front-back direction relative to the vertical center plane of the running wheel set.
The invention also provides a railway vehicle, which comprises a frame and a steering wheel structure arranged at the bottom of the frame, wherein the steering wheel structure is specifically any one of the steering wheel structures.
The invention provides a steering wheel structure of a railway vehicle, which comprises a steering wheel support, a fork frame, a slewing bearing, a driving wheel set, a connecting frame, a tensioning wheel frame and tensioning wheels, wherein the steering wheel support comprises a transverse frame and two vertical frames symmetrically arranged at the left end and the right end of the transverse frame, the fork frame is arranged on the transverse frame and is rotationally connected with the transverse frame through a longitudinally arranged swinging pin shaft, the slewing bearing is arranged on the fork frame, the outer ring of the slewing bearing is fixedly connected with the fork frame, the inner ring of the slewing bearing is used for being connected with a frame, the driving wheel set is arranged between the two vertical frames and is rotationally connected with the vertical frames at the two sides through transverse steering wheel shafts, the driving wheel set is used for being arranged on a rail to be supported by the rail and rotationally driven along the rail, the bottom ends of the two vertical frames are respectively provided with the connecting frames, the connecting frame is arranged at the two sides of the rail, the tensioning wheel frame is arranged at the inner side of the connecting frame, the tensioning wheel frame comprises a vertical plate and transverse plates arranged at the upper end and the lower end of the vertical plate, the tensioning wheel is arranged between the two transverse plates, and the tensioning plate is connected with the tensioning wheel through a vertical tensioning wheel pin shaft, and the tensioning wheel is tightly pressed on the vertical face.
The steering wheel structure of the rail vehicle is arranged at the bottom of the frame through the slewing bearing when in use, and is arranged on the rail through the driving wheel groups, the tensioning wheels are positioned at two sides of the rail and are tightly pressed on the vertical surface of the rail, and as the fork frame for supporting the frame can swing left and right around the swinging pin shaft relative to the steering wheel bracket, the installation error of each part can be eliminated through swinging, the centering of the rail vehicle during driving is ensured, the vehicle can be kept to drive at the middle position of the rail, and the driving stability and the running efficiency of the vehicle are improved.
The rail vehicle provided by the invention comprises the steering wheel structure, and the rail vehicle has the same technical effects as the steering wheel structure, and the technical effects are not described in detail herein.
Drawings
FIG. 1 is a schematic view of a steering wheel structure of a rail vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic view of a steering wheel bracket according to an embodiment of the present invention;
FIG. 3 is a schematic view of a fork according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of one embodiment of a steerable wheel structure of a railway vehicle provided by the present invention;
FIG. 5 is an enlarged schematic view of portion A of FIG. 4;
FIG. 6 is a schematic structural view of an embodiment of a connector provided by the present invention;
fig. 7 is a schematic structural view of an embodiment of the tensioning wheel frame provided by the present invention.
The figures are marked as follows:
the steering wheel support 1, the transverse frame 1-1, the vertical frame 1-2, the arc-shaped bulge 1-3, the support plate 1-4, the fork frame 2, the slewing bearing 3, the swinging pin shaft 4, the running wheel group 5, the connecting frame 6, the first connecting plate 6-1, the second connecting plate 6-2, the transverse through hole 6-3, the vertical through hole 6-4, the pressing plate 7, the steering wheel shaft 8, the tensioning wheel frame 9, the transverse plate 9-1, the vertical plate 9-2, the tensioning wheel 10, the tensioning wheel pin shaft 11, the track 12, the tensioning swinging pin shaft 13, the ball head ejector rod 14, the tensioning adjusting bolt 15, the tensioning spring 16 and the step push rod 17.
Detailed Description
The core of the invention is to provide a steering wheel structure of a railway vehicle, which can ensure the centering of the railway vehicle during running, reduce running sliding resistance and improve the running stability and running efficiency of the vehicle. Another core of the present invention is to provide a railway vehicle comprising the above steering wheel structure.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an embodiment of a steering wheel structure of a railway vehicle according to the present invention; FIG. 2 is a schematic view of a steering wheel bracket according to an embodiment of the present invention; fig. 3 is a schematic structural view of an embodiment of the fork according to the present invention.
The invention provides a steering wheel structure of a railway vehicle, which comprises a steering wheel bracket 1, a fork frame 2, a slewing bearing 3, a running wheel set 5, a connecting frame 6, a tensioning wheel frame 9 and a tensioning wheel 10, wherein:
the steering wheel bracket 1 specifically comprises a transverse frame 1-1 and two vertical frames 1-2 symmetrically arranged at the left end and the right end of the transverse frame 1-1, wherein a fork frame 2 is arranged on the transverse frame 1-1 and is rotationally connected with the transverse frame 1-1 through a swinging pin shaft 4 longitudinally arranged, so that the fork frame 2 can swing around the swinging pin shaft 4 by a certain angle;
the slewing bearing 3 is arranged on the fork frame 2, the outer ring of the slewing bearing 3 is fixedly connected with the fork frame 2, and the inner ring of the slewing bearing 3 is used for being connected with the frame of the railway vehicle, so that the railway vehicle can relatively rotate from the wheel set part below the outer ring and the frame part above the inner ring when required, and the steering of the vehicle is realized; the outer ring of the slewing bearing 3 and the fork frame 2, and the inner ring of the slewing bearing 3 and the frame can be connected by bolts, so that the disassembly and assembly are convenient;
the running wheel set 5 is arranged between the two vertical frames 1-2 of the steering wheel bracket 1 and is rotationally connected with the vertical frames 1-2 at the two sides through a transverse steering wheel shaft 8, in particular, the running wheel set 5 can be fixedly sleeved on the middle position of the steering wheel shaft 8, the vertical frames 1-2 are provided with transverse mounting holes, the two ends of the steering wheel shaft 8 can be respectively arranged in the transverse mounting holes of the two vertical frames 1-2 through bearing blocks and bearings, when in use, the running wheel set 5 is arranged on a track 12, the running wheel set 5 is supported by the track 12, and the running wheel set 5 can drive the steering wheel bracket 1, a frame and the like to roll along the extending direction of the track 12,
optionally, one end or two ends of the steering wheel shaft 8 can extend out of the vertical frame 1-2 and be used for being connected with a rotating power device so as to realize power input or rotating signal output, so that the steering wheel shaft 8 rotates to drive the running wheel set 5 to roll along the track 12;
the connecting frame 6 is used for connecting the steering wheel bracket 1 and the tensioning wheel frame 9, the bottom ends of the two vertical frames 1-2 of the steering wheel bracket 1 are respectively provided with the connecting frame 6, when the running wheel group 5 is positioned on the track 12, the two connecting frames 6 are respectively positioned at two sides of the track 12,
the tensioning wheel frames 9 are arranged on the inner sides of the connecting frames 6, the tensioning wheel frames 9 are arranged on the inner sides of the two connecting frames 6, each tensioning wheel frame 9 specifically comprises a vertical plate 9-2 and transverse plates 9-1 arranged at the upper end and the lower end of the vertical plate 9-2, a tensioning wheel 10 is arranged between the two transverse plates 9-1, the transverse plates 9-1 and the tensioning wheel 10 are connected through vertical tensioning wheel pin shafts 11, and the tensioning wheel 10 is tightly pressed on the vertical face of the track 12, so that the tensioning wheel 10 can rotate around the vertical tensioning wheel pin shafts 11 relative to the tensioning wheel frames 9, and when the running wheel set 5 rolls along the extending direction of the track 12, the running wheel set 5 drives the tensioning wheel 10 to keep tightly pressed and rolled along the vertical face of the track 12 through the steering wheel support 1, the connecting frames 6 and the tensioning wheel frames 9.
According to the steering wheel structure of the rail vehicle, the steering wheel structure is installed at the bottom of the vehicle frame through the slewing bearing 3 when in use, and is arranged on the rail 12 through the running wheel groups 5, the tensioning wheels 10 are positioned at two sides of the rail 12 and are tightly pressed on the vertical face of the rail 12, and as the fork frame 2 for supporting the vehicle frame can swing left and right around the swinging pin shaft 4 relative to the steering wheel bracket 1, the installation error of each part can be eliminated through swinging, the centering of the rail vehicle during running is ensured, the vehicle can be kept to run at the middle position of the rail 12, and the running stability and the running efficiency of the vehicle are improved.
In the steering wheel structure of the railway vehicle provided by the embodiment of the invention, in order to enable the fork frame 2 to swing left and right around the swing pin shaft 4 by a certain angle relative to the steering wheel bracket 1, a certain gap is required between the upper surface and the lower surface of the two ends of the fork frame 2, which correspond to the two ends of the steering wheel bracket 1, and the gap size influences the swing angle of the fork frame 2, specifically, a longitudinal arc-shaped bulge 1-3 can be arranged in the middle position of the transverse frame 1-1, when the fork frame 2 is arranged on the transverse frame 1-1, the lower surface of the middle part of the fork frame 2 is propped against the arc-shaped bulge 1-3, and then a swing gap is formed between the upper surfaces of the two ends of the transverse frame 1-1 and the lower surfaces of the two ends of the fork frame 2; the height of the arc-shaped protrusions 1-3 may be set according to a desired swing angle of the fork 2. It is also possible to provide the arc-shaped protrusions 1-3 on the lower surface of the fork 2 at the middle position, and it is also within the scope of the present invention.
Alternatively, the fork frame 2 can be made into an arc structure with two ends tilted upwards, or the transverse frame 1-1 of the steering wheel bracket 1 can be made into an arc structure with two ends bent downwards, so that a swinging gap can be generated between the fork frame 2 and the steering wheel bracket 1, and the invention is also within the protection scope of the invention.
Further, in order to facilitate connection between the fork 2 and the steering wheel bracket 1, a longitudinal swing pin hole may be formed in the middle of the cross frame 1-1, flanges may be formed at front and rear ends of the fork 2, mounting through holes matched with the swing pin hole are formed in the flanges, a swing pin shaft 4 passes through the mounting through holes and the swing pin hole during connection, and the swing pin shaft 4 may be fixed on the flanges of the fork 2.
Referring to fig. 4 to 7, fig. 4 is a cross-sectional view of an embodiment of a steering wheel structure of a railway vehicle according to the present invention; FIG. 5 is an enlarged schematic view of portion A of FIG. 4; fig. 6 is a schematic structural diagram of an embodiment of the connecting frame 6 according to the present invention; fig. 7 is a schematic structural view of an embodiment of the tensioning frame 9 according to the present invention.
In order to facilitate connection between the connecting frame 6 and the steering wheel bracket 1, the steering wheel structure of the railway vehicle provided by the embodiment of the invention is characterized in that the bottom end of the vertical frame 1-2 can be outwards bent to form the support plate 1-4, meanwhile, the top end of the connecting frame 6 is provided with the first connecting plate 6-1 matched with the support plate 1-4, the first connecting plate 6-1 and the support plate 1-4 can be connected by bolts, the connection is reliable, and the disassembly and the assembly are convenient.
Alternatively, the connecting frame 6 may be combined with the steering wheel bracket 1 into one component, that is, the connecting frame 6 and the steering wheel bracket 1 may be integrally formed, which is also within the scope of the present invention.
On the basis of the specific embodiments, as the turning radius of the curve of the track 12 is different in actual application, in order to improve the adaptability of the steering wheel, in the steering wheel structure of the railway vehicle provided by the specific embodiments of the invention, the tensioning wheel frame 9 is preferably in rotary connection with the connecting frame 6 through the vertical tensioning swing pin shaft 13, so that the tensioning wheel 10 and the tensioning wheel frame 9 can rotate around the tensioning swing pin shaft 13 relative to the connecting frame 6, the change of the compressing position of the tensioning wheel frame 9 is realized, the pressure of the compressing tensioning wheel 10 is adjusted, the compressing force of the compressing wheel on the vertical face of the track 12 is further adjusted, and the tensioning device capable of fixing the compressing position of the tensioning wheel frame 9 is arranged on the connecting frame 6; namely, the initial pressing force of the tensioning wheel 10 on the vertical face of the rail 12 can be adjusted, and the initial pressing force can be adjusted to be most suitable for the condition of the curve of the rail 12 according to actual conditions, so that the centering of the rail vehicle during running is ensured, and the resistance loss is reduced.
Specifically, a transverse through hole 6-3 may be provided on the connecting frame 6, a pressing plate 7 is fixed outside the connecting frame 6, a tensioning threaded hole is provided on the pressing plate 7 at a position corresponding to the transverse through hole 6-3, the tensioning device specifically includes a ball head ejector rod 14, a tensioning spring 16 and a tensioning adjusting bolt 15, the round head of the ball head ejector rod 14 abuts against a riser 9-2 of the tensioning frame, the rod portion of the ball head ejector rod is inserted into the transverse through hole 6-3, the tensioning spring 16 is arranged in the transverse through hole 6-3, one end of the tensioning spring abuts against the rod portion of the ball head ejector rod 14, the tensioning adjusting bolt 15 is connected with the tensioning threaded hole in a matching manner, and the end of the screw rod extends into the transverse through hole 6-3 and abuts against the other end of the tensioning spring 16, namely the tensioning spring 16 is arranged between the end of the screw rod of the tensioning adjusting bolt 15 and the rod portion of the ball head ejector rod 14; the compression amount of the tensioning spring 16 can be adjusted by screwing the tensioning adjusting bolt 15 and adjusting the screw amount of the screw, so that the ball head ejector rod 14 pushes the tensioning wheel frame 9 to rotate around the tensioning swing pin shaft 13, the tensioning wheel 10 is further pressed on the vertical face of the track 12, meanwhile, the pressing position of the tensioning wheel frame 9 can be changed by adjusting the screw amount of the screw of the tensioning adjusting bolt 15, and the pressure of the tensioning wheel 10 is adjusted, so that the tensioning wheel is simple and convenient.
Further, in order to ensure that the tensioning adjusting bolt 15 can press the tensioning spring 16, the tensioning device can further comprise a step push rod 17 arranged in the transverse through hole 6-3, a guide hole is formed in the rod part of the ball head push rod 14, the small diameter end of the step push rod 17 penetrates through the tensioning spring 16 and is inserted into the guide hole, the screw end of the tensioning adjusting bolt 15 abuts against the large diameter end of the step push rod 17, the diameter of the tensioning spring 16 is smaller than that of the large diameter end of the step push rod 17, and after the tensioning device is installed in place, the two ends of the tensioning spring 16 abut against the step end face of the step push rod 17 and the rod part end face of the ball head push rod 14 respectively; when the tensioning adjusting bolt 15 is screwed, the screw rod of the tensioning adjusting bolt pushes the step push rod 17 from the left side to move rightwards along the guide hole, the right end face of the large diameter end of the step push rod 17 extrudes the tensioning spring 16 to push the ball head push rod 14 to press the tensioning wheel frame 9, and the guide hole can play a guide role.
Further, in order to facilitate connection between the tensioning wheel frame 9 and the connecting frame 6, the connecting frame 6 may further include a second connecting plate 6-2 connected to the first connecting plate 6-1 and vertically disposed, the transverse through hole 6-3 is disposed on the second connecting plate 6-2, the pressing plate 7 is fixed outside the second connecting plate 6-2, a vertical through hole 6-4 for connection with the tensioning wheel frame 9 is disposed inside the second connecting plate 6-2, meanwhile, one ends of two transverse plates 9-1 of the tensioning wheel frame 9 are respectively provided with a first pin hole matched with the vertical through hole 6-4, the other ends of the two transverse plates 9-1 are respectively provided with a second pin hole for mounting the tensioning wheel 10, and two ends of a vertical plate 9-2 of the tensioning wheel frame 9 are respectively connected to the middle parts of the two transverse plates 9-1; wherein, in order to ensure that the ball head ejector rod 14 can push the tensioning wheel frame 9 to rotate around the tensioning swing pin shaft 13 by screwing the tensioning adjusting bolt 15, the axis of the transverse through hole 6-3 is not intersected with the axis of the vertical through hole 6-4.
On the basis of the above embodiments, in the steering wheel structure of the railway vehicle provided by the embodiment of the invention, each connecting frame 6 can be provided with two tensioning wheel frames 9, and the two tensioning wheel frames 9 positioned at one side of the rail 12 are symmetrically arranged in front-back direction relative to the vertical central plane of the running wheel set 5, and because each tensioning wheel frame 9 is provided with one tensioning wheel 10, the two tensioning wheels 10 positioned at one side of the rail 12 are also symmetrically arranged in front-back direction relative to the vertical central plane of the running wheel set 5; the tensioning wheels 10 which are arranged in a 2 multiplied by 2 mode are adopted, the compacting force of the tensioning wheels 10 on two sides on the track 12 can be kept consistent when the vehicle moves forwards and backwards, the steering wheel structure is ensured to be consistent with the tangential direction of the curve of the track 12, the running sliding resistance is reduced to the greatest extent, and the center of the steering wheel structure is kept on the center surface of the track 12 as far as possible.
In addition to the above steering wheel structure, the specific embodiment of the present invention further provides a rail vehicle including the above steering wheel structure, and the structure of other parts of the rail vehicle is referred to the prior art, and will not be described herein.
In the description of the present application, it should be understood that the directions or relationships indicated by the terms "front", "rear", "left", "right", "transverse", "longitudinal", "vertical", etc. are based on the directions or relationships of positions shown in the drawings, and are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The rail vehicle and the steering wheel structure thereof provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (9)
1. The utility model provides a steering wheel structure of rail vehicle, characterized by includes steering wheel support (1), fork (2), slewing bearing (3), driving wheelset (5), link (6), tensioning wheel frame (9) and take-up pulley (10), steering wheel support (1) include crossbearer (1-1) and symmetry set up two erects frame (1-2) in both ends about fork (1-1), fork (2) are established on fork (1-1), and through vertically set up swing round pin axle (4) with fork (1-1) swivelling joint, slewing bearing (3) are established on fork (2), and its outer lane with fork (2) fixed connection, its inner circle is used for being connected with the frame, driving wheelset (5) are established between two erects frame (1-2), and through horizontal steering wheel axle (8) with both sides erects frame (1-2) swivelling joint, driving wheelset (5) are used for setting up on track (12) in order to follow track (12) by rotation support,
the bottom ends of the two vertical frames (1-2) are respectively provided with the connecting frames (6), the connecting frames (6) are positioned on two sides of a track (12), the tensioning wheel frames (9) are arranged on the inner sides of the connecting frames (6), each tensioning wheel frame (9) comprises a vertical plate (9-2) and transverse plates (9-1) arranged at the upper end and the lower end of each vertical plate (9-2), a tensioning wheel (10) is arranged between the two transverse plates (9-1), the transverse plates (9-1) are connected with the tensioning wheel (10) through vertical tensioning wheel pin shafts (11), and the tensioning wheels (10) are tightly pressed on the vertical faces of the track (12);
the middle position of the upper surface of the transverse frame (1-1) is provided with a longitudinal arc-shaped bulge (1-3), and the arc-shaped bulge (1-3) is used for propping against the lower surface of the middle part of the fork frame (2), so that a swinging gap is formed between the upper surface of the transverse frame (1-1) and the lower surface of the fork frame (2).
2. Steering wheel structure according to claim 1, characterized in that the steering wheel axle (8) is fixedly connected with the running wheel set (5), and that the outer end of the steering wheel axle (8) extends out of the vertical frame (1-2) and is intended for connection with a rotational power device.
3. Steering wheel structure according to claim 1, characterized in that the bottom end of the vertical frame (1-2) is bent outwards to form a support plate (1-4), the top end of the connecting frame (6) is provided with a first connecting plate (6-1) matched with the support plate (1-4), and the first connecting plate (6-1) is connected with the support plate (1-4) through bolts.
4. Steering wheel arrangement according to claim 1, characterized in that the connecting frame (6) is integrally formed with the steering wheel carrier (1).
5. Steering wheel structure according to any one of claims 1 to 4, characterized in that the tensioning wheel frame (9) is rotatably connected with the connecting frame (6) through a vertical tensioning swing pin shaft (13), a transverse through hole (6-3) is arranged on the connecting frame (6), a pressing plate (7) is fixedly arranged outside the connecting frame (6), a tensioning threaded hole is arranged on the pressing plate (7) at a position corresponding to the transverse through hole (6-3), a ball head ejector rod (14), a tensioning spring (16) and a tensioning adjusting bolt (15) are further included, the round head of the ball head ejector rod (14) abuts against the vertical plate (9-2), the rod part of the ball head ejector rod is inserted into the transverse through hole (6-3), the tensioning spring (16) is arranged in the transverse through hole (6-3), one end of the tensioning spring (16) abuts against the rod part of the ball head ejector rod (14), the tensioning adjusting bolt (15) is connected with the tensioning threaded hole in a matched mode, the end of the screw rod extends into the transverse through hole (6-3) and abuts against the tensioning spring (16) so that the other end of the tensioning spring (16) can enable the tensioning wheel frame (9) to rotate around the tensioning pin shaft (13), and pressing the tensioning wheel (10) on the vertical face of the rail (12).
6. The steering wheel structure according to claim 5, further comprising a stepped push rod (17) provided in the lateral through hole (6-3), wherein a guide hole is provided at a rod portion of the ball head push rod (14), a small diameter end of the stepped push rod (17) is inserted into the guide hole through the tension spring (16), and a screw end of the tension adjusting bolt (15) abuts against a large diameter end of the stepped push rod (17).
7. Steering wheel structure according to claim 5, characterized in that the connection frame (6) comprises a second connection plate (6-2) arranged vertically, the transverse through hole (6-3) is arranged on the second connection plate (6-2), a vertical through hole (6-4) for connecting with the tensioning wheel frame (9) is arranged inside the second connection plate (6-2), and the axis of the transverse through hole (6-3) is not intersected with the axis of the vertical through hole (6-4); one end of each of the two transverse plates (9-1) of the tensioning wheel frame (9) is provided with a first pin hole matched with the corresponding vertical through hole (6-4), the other end of each of the two transverse plates (9-1) is provided with a second pin hole for installing the tensioning wheel (10), and two ends of each of the vertical plates (9-2) of the tensioning wheel frame (9) are respectively connected to the middle parts of the two transverse plates (9-1).
8. Steering wheel structure according to claim 5, characterized in that two tensioning wheel frames (9) are mounted on each connecting frame (6), and the two tensioning wheel frames (9) located on one side of the track (12) are symmetrically arranged in front-back direction relative to the vertical central plane of the running wheel set (5).
9. A rail vehicle comprising a frame and a steering wheel structure mounted to the bottom of the frame, characterized in that the steering wheel structure is in particular a steering wheel structure according to any one of claims 1 to 8.
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| CN201811131189.2A CN109204359B (en) | 2018-09-27 | 2018-09-27 | Rail vehicle and steering wheel structure thereof |
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| CN201811131189.2A CN109204359B (en) | 2018-09-27 | 2018-09-27 | Rail vehicle and steering wheel structure thereof |
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| CN109204359B true CN109204359B (en) | 2024-02-27 |
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| US11667309B2 (en) * | 2020-02-27 | 2023-06-06 | Nomadd Desert Solar Solutions Pte. Ltd. | System for stabilizing a track-wheel based device on a support track |
| CN111674420B (en) * | 2020-06-23 | 2021-10-26 | 株洲时代新材料科技股份有限公司 | Adaptive guide wheel device for railway vehicle and design method thereof |
| CN112172849A (en) * | 2020-09-17 | 2021-01-05 | 北部湾大学 | Self-adaptive adjustment trolley device for conveying tubercle bacillus samples |
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