CN209920966U

CN209920966U - Guide wheel mechanism of dual-purpose vehicle for track and dual-purpose vehicle for track

Info

Publication number: CN209920966U
Application number: CN201920439455.1U
Authority: CN
Inventors: 胡松松; 许创
Original assignee: Construction Machinery Branch of XCMG
Current assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-01-10
Anticipated expiration: 2029-04-03

Abstract

The present disclosure provides a guide wheel mechanism of a rail dual-purpose vehicle and the rail dual-purpose vehicle. The guide wheel mechanism has a track running state and a road running state, and comprises: the transition frame comprises a vehicle body connecting part which is detachably connected with the vehicle body of the rail dual-purpose vehicle; the deflection frame is hinged with the transition frame; the guide wheel assembly is connected to the deflection frame; the first end of the driving cylinder is hinged to the transition frame, the second end of the driving cylinder is hinged to the deflection frame, and the driving cylinder is used for adjusting the distance between the guide wheel assembly and the transition frame so as to control the guide wheel mechanism to switch between a track running state and a road running state; wherein, the transition frame, the deflection frame, the guide wheel component and the driving cylinder form a modular structure which is integrally detachable with the vehicle body through the vehicle body connecting part. The rail and road dual-purpose vehicle and the guide wheel mechanism thereof can shorten the switching time of the wheel rail and improve the quick response capability.

Description

Guide wheel mechanism of dual-purpose vehicle for track and dual-purpose vehicle for track

Technical Field

The disclosure relates to the technical field of rail and rail dual-purpose vehicles, in particular to a guide wheel mechanism of a rail and rail dual-purpose vehicle and the rail and rail dual-purpose vehicle.

Background

In recent years, the track traffic in China is developed vigorously, the area where the track passes is increased continuously, the terrain and the geology are more and more complex, the probability of disasters such as fire, flood, snow, earthquake and the like in the adjacent area of the track is increased greatly, higher and higher requirements are put forward for the emergency rescue requirement and the response time of the track, and the application requirement of the track vehicle with other functions is wider and wider.

Compared with a special rail vehicle, the rail dual-purpose vehicle is more flexible and flexible, the cost of the whole life cycle is lower than that of the special rail vehicle, and the rail dual-purpose vehicle can meet the requirements of modernization on energy conservation, environmental protection and high efficiency.

The chinese utility model patent with publication number CN202911485U and entitled "guiding device and convertible railway and highway vehicle" discloses a guiding device of a convertible railway and highway vehicle. As shown in fig. 1, the guide device includes: axle bed 1, setting are in pivot 11 in the axle bed 1, setting are in leading wheel 2, pneumatic cylinder connecting seat 3, pneumatic cylinder 31, fixing base 4 and fixing at the 11 both ends of pivot and are fixed connecting rod 41 on fixing base 4, a tip of pneumatic cylinder 31 is connected on pneumatic cylinder connecting seat 3, and another tip is connected on connecting rod 41, and fixing base 4 is fixed on axle bed 1, still is provided with damping piece 5 between fixing base 4 and the axle bed 1. By arranging the vibration reduction block 5 between the fixed seat 4 and the shaft seat 1, when the guide wheel 2 rotates on the rail, the vibration generated between the guide wheel 2 and the rail is effectively relieved by the vibration reduction block 5, the vibration intensity of a cab in the rail-road dual-purpose vehicle is weakened, the vibration reduction performance of the guide device is improved, and the vibration reduction effect of the rail-road dual-purpose vehicle is optimized.

Chinese patent application CN103009945A entitled "guide wheel mechanism and convertible rail car and highway" discloses a guide wheel mechanism. The guide wheel mechanism comprises two guide wheels 5, and the two guide wheels 5 are connected together through a wheel shaft. The wheel shaft is provided with a wheel shaft seat. Each guide wheel 5 is correspondingly provided with a guide link mechanism. The guide link mechanism comprises an oil cylinder frame 1, a sliding frame 2, a first rotating arm 3, a second rotating arm 4 and an oil cylinder 11. The oil cylinder frame 1 is fixed on a frame of a rail-road dual-purpose vehicle, a cylinder body of an oil cylinder 11 is hinged on the oil cylinder frame 1, a sliding frame 2 is horizontally and slidably connected onto the oil cylinder frame 1, a piston rod of the oil cylinder 11 is hinged with one end of the sliding frame 2, the upper end of a first rotating arm 3 is hinged on the frame, the upper end of a second rotating arm 4 is hinged at the other end of the sliding frame 2, the lower end of the first rotating arm 3 is hinged at the middle part of the second rotating arm 4, and a wheel axle seat 50 is fixed at the lower end of the second rotating. The sliding frame 2 is provided with a sliding groove 21, the oil cylinder frame is provided with a sliding block 12, and the sliding block 12 is connected in the sliding groove 21 in a sliding mode.

The hinge point that prior art's dual-purpose vehicle guide wheel mechanism of rail and chassis are connected is more dispersed, and the whole dismouting of being not convenient for is consuming time hard during the dismouting. These shortcomings can cause untimely rescue, low efficiency of operation transition, fussy disassembly, and limited function expansion of bulk and vehicles after disassembly. Since the addition of the rail device affects the approach angle, departure angle, and the like of the vehicle, if the guide wheel mechanism is mounted on the vehicle and runs on the road for a long distance, the long-distance transition of the road is affected.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a guide wheel mechanism of a rail dual-purpose vehicle and the rail dual-purpose vehicle, and aims to shorten the wheel-rail switching time of the rail dual-purpose vehicle and improve the quick response capability of the rail dual-purpose vehicle.

The first aspect of the present disclosure provides a guide wheel mechanism of a rail-bound vehicle, having a track running state and a road running state, comprising:

the transition frame comprises a vehicle body connecting part which is detachably connected with the vehicle body of the rail dual-purpose vehicle;

the deflection frame is hinged to the transition frame;

the guide wheel assembly is connected to the deflection frame; and

the first end of the driving cylinder is hinged to the transition frame, the second end of the driving cylinder is hinged to the deflection frame, and the driving cylinder is used for adjusting the distance between the guide wheel assembly and the transition frame so as to control the guide wheel mechanism to be switched between the rail running state and the road running state;

the transition frame, the swing frame, the guide wheel assembly and the driving cylinder form a modular structure which is integrally detachable with the vehicle body through the vehicle body connecting part.

In some embodiments, the transition frame comprises:

the transition frame body is provided with two first corner parts respectively positioned at two sides of the first end of the transition frame and two second corner parts respectively positioned at two sides of the second end of the transition frame;

the two first connecting lug plates are respectively and fixedly connected to two first corners of the transition frame body, and the vehicle body connecting part comprises a first hanging hole arranged on the first connecting lug plates; and

the second connects the otic placode, two the second connect the otic placode respectively fixed connection in two second bights of transition frame framework, automobile body connecting portion including set up in second on the second connect the otic placode and hang the hole.

In some embodiments of the present invention, the,

the first connecting lug plate is provided with a first hinge hole for being hinged with the deflection frame;

the second connecting lug plate is provided with a second hinge hole which is used for being hinged with the first end of the driving cylinder;

the beat frame includes that third connects otic placode and fourth to connect the otic placode, be provided with on the third connects the otic placode with the third hinge hole that first hinge hole corresponds the setting, be provided with on the fourth connects the otic placode be used for with the articulated fourth hinge hole of second end of actuating cylinder.

In some embodiments of the present invention, the,

the deflection frame comprises a deflection frame body and a mounting seat, a first end of the deflection frame body is hinged to a first end of the transition frame, and the mounting seat is arranged at a second end of the deflection frame body;

the guide wheel assembly comprises a guide wheel, a wheel shaft, a primary spring and a spring seat, the guide wheel is rotatably arranged on the wheel shaft, the spring seat is fixedly connected to the wheel shaft, the mounting seat is in floating connection with the spring seat through a threaded connection assembly, and the primary spring is arranged between the mounting seat and the spring seat.

In some embodiments of the present invention, the,

a first positioning spigot is arranged on one side, opposite to the first series of springs, of the mounting seat surface, and a first end of each first series of springs is in positioning fit with the first positioning spigot;

and a second positioning spigot is arranged on one side of the spring seat facing the first series of springs, and the second end of the first series of springs is in positioning fit with the second positioning spigot.

In some embodiments, the guide wheel assembly comprises:

a guide wheel;

a wheel shaft, on which the guide wheel is rotatably mounted; and

the braking device is used for carrying out service braking and/or parking braking on the guide wheel, is positioned on the outer side of the guide wheel and comprises a first braking part arranged on the wheel shaft and a second braking part arranged on the guide wheel.

In some embodiments, the steering wheel mechanism further comprises a position locking structure for locking the relative positions of the transition frame and the yaw frame in the road driving condition.

In some embodiments, the position locking structure comprises:

the first locking hole is arranged on the transition frame;

the second locking hole is arranged on the deflection frame;

a locking member engaged with the first locking hole and the second locking hole in the road running state, and disengaged from at least one of the first locking hole and the second locking hole in the rail running state.

The second aspect of the disclosure provides a rail-mounted vehicle, which comprises a vehicle body and a guide wheel mechanism, wherein the guide wheel mechanism is the guide wheel mechanism of the first aspect of the disclosure, and the guide wheel mechanism is detachably connected with the whole vehicle body through a vehicle body connecting part arranged on a transition frame of the guide wheel mechanism.

In some embodiments, the guide wheel mechanism is connected to the vehicle body by a pin.

Based on this the utility model provides a rail dual-purpose vehicle's leading wheel mechanism, transition frame, the deflection frame, leading wheel subassembly and actuating cylinder form through the whole detachable modular structure of automobile body connecting portion with the automobile body, be convenient for realize rail dual-purpose vehicle's function conversion, but whole quick assembly disassembly, it is simple, swift to change, can shorten rail dual-purpose vehicle's wheel rail switching time, improve rail dual-purpose vehicle's quick response ability, do benefit to the efficiency when effectively improving rail dual-purpose vehicle and carry out tasks such as transition, rescue.

The dual-purpose vehicle for the rail has the guide wheel mechanism, so that the dual-purpose vehicle for the rail has the advantages of the guide wheel mechanism.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a schematic structural view of a guide device of an all-terrain vehicle in the prior art.

Fig. 2 is a schematic structural diagram of a guide wheel mechanism of a rail-road vehicle in the prior art.

Fig. 3 is a partial structural schematic view of a rail-mounted vehicle according to an embodiment of the present disclosure.

Fig. 4 is a schematic perspective view of the guide wheel mechanism of the dual-purpose rail vehicle shown in fig. 3 in a road driving state.

Fig. 5 is a side view of the structure of fig. 4.

Fig. 6 is a schematic perspective view illustrating a guide wheel mechanism of the dual-purpose rail vehicle shown in fig. 3 in a track running state.

Fig. 7 is a side view of the structure of fig. 6.

Fig. 8 is a schematic front view of the structure of fig. 6.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present disclosure, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present disclosure.

In the description of the present disclosure, it is to be understood that the positional or orientational relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom" are merely for convenience in describing the present disclosure and for simplicity in description, and in the absence of a contrary indication, these directional terms are not intended to indicate and imply that the referenced device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be taken as limiting the scope of the present disclosure; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

As shown in fig. 3, an embodiment of the present disclosure provides a rail-bound vehicle. The track-bound vehicle includes a vehicle body 100 and a guide wheel mechanism 200. The guide wheel mechanism 200 is detachably connected to the vehicle body 100 integrally by a vehicle body connecting portion provided on the transition frame 210. The guide wheel mechanism 200 has a track running state and a road running state. As shown in fig. 3, the guide wheel mechanism 200 in the road driving state is denoted by reference numeral 200, and the guide wheel mechanism 200 in the rail driving state is denoted by reference numeral 200' for distinguishing the road driving state, both of the rail driving state and the road driving state of the same guide wheel mechanism 200 are shown.

In addition, fig. 4 to 5 show the structure of the guide wheel mechanism 200 in a road running state, and fig. 6 to 8 show the structure of the guide wheel mechanism 200 in a track running state.

As shown in fig. 3 to 8, the embodiment of the present disclosure provides a guide wheel mechanism 200 of a rail vehicle. The guide wheel mechanism 200 includes a transition frame 210, a yaw frame 220, a guide wheel assembly 240, and a drive cylinder 230.

The transition frame 210 includes a body attachment portion for detachably attaching to the body 100 of the rail vehicle. The yaw frame 220 is hinged to the transition frame 210. The guide wheel assembly 240 is connected to the yaw frame 220. A first end of the actuating cylinder 230 is hinged to the transition frame 210 and a second end of the actuating cylinder 230 is hinged to the yaw frame 220. The driving cylinder 230 is used to adjust the distance between the guide wheel assembly 240 and the transition frame 210 to control the guide wheel mechanism 200 to switch between the track driving state and the road driving state. Among them, the transition frame 210, the yaw frame 220, the guide wheel assembly 240, and the driving cylinder 230 form a modular structure that is integrally detachable with the vehicle body 100 through a vehicle body coupling portion.

In this rail dual-purpose vehicle and leading wheel mechanism thereof, transition frame 210, beat frame 220, leading wheel subassembly 240 and actuating cylinder 230 form through the whole detachable modular structure of automobile body connecting portion with automobile body 100, be convenient for realize rail dual-purpose vehicle's function conversion, if dismantle the leading wheel mechanism after the functional device such as change snow removal shovel, round brush, but whole quick assembly disassembly, it is simple, swift to change, can shorten rail dual-purpose vehicle's wheel rail switching time, improve rail dual-purpose vehicle's quick response ability, do benefit to the efficiency when effectively improving rail dual-purpose vehicle and carrying out tasks such as transition, rescue.

As shown in fig. 4-8, in some embodiments, the transition frame 210 includes a first connection ear plate 213 and a second connection ear plate 214. The transition frame body has two first corners located at both sides of the first end of the transition frame and two second corners located at both sides of the second end of the transition frame. The two first connecting ear plates 213 are respectively and fixedly connected to two first corners of the transition frame body, and the vehicle body connecting portion includes a first hooking hole 2131 disposed on the first connecting ear plate 213. The two second connecting ear plates 214 are respectively and fixedly connected to two second corners of the transition frame body, and the vehicle body connecting portion includes a second hooking hole 2141 formed in the second connecting ear plate 214.

The guide wheel mechanism 200 is connected with the car body 100 through the hitching hole, so that the guide wheel mechanism 200 can be quickly disassembled and assembled.

As shown in fig. 4 to 8, the first connecting ear plate 213 is provided with a first hinge hole for being hinged to the swing frame 220. The second connecting ear plate 214 is provided with a second hinge hole 2142 for being hinged to the first end of the driving cylinder 230. The yaw frame 220 includes a third connecting lug 223 and a fourth connecting lug 226. The third connecting ear plate 223 is provided with a third hinge hole 2231 corresponding to the first hinge hole, and the fourth connecting ear plate 226 is provided with a fourth hinge hole for hinging with the second end of the driving cylinder 230.

As shown in fig. 4, 6, and 8, the yaw frame 220 includes a yaw frame body 221 and a mount 222. The first end of the frame body 221 is hinged to the first end of the transition frame 210, and the mounting seat 222 is disposed at the second end of the frame body 221. The guide wheel assembly 240 includes a guide wheel 241, an axle 242, a tie spring 247, and a spring seat 248. The guide wheel 241 is rotatably mounted on the wheel shaft 242. The spring seat 248 is fixedly attached to the axle 242. The mount 222 is floatingly coupled to the spring seat 248 by a threaded coupling assembly 2471. A series of springs 247 are disposed between the mounting block 222 and the spring block 248.

The guide wheel mechanism adopts a series of springs 247 to realize a damping function, and the three-way running stability is high.

In some embodiments, a first positioning notch is formed on a side of the mounting base 222 facing the first fastening spring 247, and a first end of the first fastening spring 247 is positioned and matched with the first positioning notch. The spring seat 248 is provided with a second positioning stop at a side facing the first tie spring 247, and a second end of the first tie spring 247 is in positioning engagement with the second positioning stop.

Two ends of the primary spring 247 are respectively embedded into the positioning spigots arranged on the spring seat 248 and the swing frame 220, so that high-frequency vibration can be effectively filtered and the stability in high-speed operation can be improved.

As shown in fig. 3-8, the guide wheel assembly 240 further includes a braking device. The brake device is used for applying service and/or parking brakes to the guide wheel 241. The braking means is located outside the guide wheel 241 and includes a first braking portion mounted on the wheel shaft 242 and a second braking portion mounted on the guide wheel 241. The arresting gear is installed in the leading wheel 241 outside, conveniently overhauls.

In some embodiments, the guide wheel mechanism 200 further comprises a position locking structure for locking the relative position between the transition frame 210 and the yaw frame 220 in a road driving state. The guide wheel mechanism 200 is provided with a position locking structure, so that accidents caused by locking failure of the driving cylinder 230 in a highway high-speed running state of a vehicle can be avoided, and a dual-guarantee effect is achieved.

As shown in fig. 4 to 7, the position locking structure includes a first locking hole 2132, a second locking hole 2241 and a locking piece 225. The first locking hole 2132 is disposed on the transition frame 210. The second locking hole 2241 is provided on the yaw frame 220. In the road running state, the lock member 225 is engaged with the first lock hole 2132 and the second lock hole 2241; in the rail running state, the lock piece 225 is disengaged from at least one of the first lock hole 2132 and the second lock hole 2241.

As shown in fig. 4 to 7, the first locking hole 2132 is disposed on the first connecting ear plate 213. The deflection frame 220 further includes a fifth connecting ear plate 224 disposed on the deflection frame body 211, and the second locking hole 2241 is disposed on the fifth connecting ear plate 224. The fifth connecting ear panel 224 is a double ear panel. The locking member 225 is a pin with a limiting end, and a cotter 226 is disposed at a free end of the pin to prevent the pin from being released from the first locking hole 2132 or the second locking hole 2241.

The present embodiment is described in more detail below with reference to fig. 4 to 8.

As shown in fig. 4-8, a first end of the yaw frame 220 is hinged to a first end of the transition frame 210. The guide wheel assembly 240 is connected to a second end of the yaw frame 220. A first end of drive cylinder 230 is hingedly coupled to a second end of transition frame 210 and a second end of drive cylinder 230 is hingedly coupled to a second end of yaw frame 220.

As shown in fig. 4 to 8, the transition frame 210 is formed by welding rectangular steel pipes and plates.

As shown in fig. 4 and 6, the transition frame body includes a first rod 211 and a second rod 212. The first rod 211 extends from the first end to the second end of the transition frame 210, and the two first rods 211 are arranged side by side at intervals. The two second rod bodies 212 are arranged side by side at intervals, wherein two ends of one second rod body 212 are respectively and fixedly connected with first ends of the two first rod bodies 211, and the other second rod body 212 is respectively and fixedly connected with second ends of the two first rod bodies 211 from two ends of the second rod body 212. The transition frame body is of an integral rectangular structure.

In order to improve the overall strength of the transition frame body, first reinforcing plates 215 are further respectively disposed at the connecting portions between the first ends of the first rod bodies 211 and the corresponding second rod bodies 212, i.e., at the two first corners.

In order to improve the connection strength between the first connection lug plate 213 and the transition frame body, a second reinforcing plate 216 is provided between the first connection lug plate 213 and the transition frame body.

In order to reinforce the strength between the second connection lug plate 214 and the transition frame body, a third reinforcing plate 217 is provided between the second connection lug plate 214 and the transition frame body.

In order to increase the connection strength between the second connecting ear plate 214 and the first rod 211, a welding hole 2143 is further formed in a portion of the second connecting ear plate 214 opposite to the first rod 211, and a welding portion is added in the welding hole 2143.

In addition, a first support 2111, a second support 2112 and a third support 2113 are welded to the transition frame 210; a fourth support 228 is also welded to the yaw frame 220. Each support member is used for mounting and supporting the fluid line of the fixed driving cylinder, the control valve and other components.

As shown in fig. 4 to 8, two third connecting lugs 223 are spaced apart from each other at a first end of the yaw frame body 221, and two fourth connecting lugs 226 are disposed on the mounting plate 222. Wherein the first connecting ear plate 213 is a single ear plate, and the second connecting ear plate 214, the third connecting ear plate 223 and the fourth connecting ear plate are double ear plates.

The deflection frame 221 is mainly an integral rectangular frame structure formed by welding plates. In order to enhance the overall strength of the yaw frame body 221, a support structure may be provided as needed in the internal space formed by the plate material girth welding.

As shown in fig. 4 to 8, in order to improve the connection strength between the yaw frame body 221 and the mount 222, a plurality of fourth reinforcing plates 227 are further provided between the yaw frame body 221 and the mount 222.

The transition frame 210 is fixedly connected to the chassis of the vehicle body 100 through two first hooking holes 2131 and two second hooking holes 2141 as vehicle body connection parts and a pin. The first end of the yaw frame 220 is hinged to the first end of the transition frame 210 via a pin. The cylinder body 231 of the oil cylinder as the driving cylinder 230 is hinged with the second end of the transition frame 210 through a pin shaft, and the piston rod 231 of the oil cylinder is hinged with the second end of the deflection frame 220 through a pin shaft. The oil cylinder stretches and retracts to drive the deflection frame 220 and the guide wheel assembly 240 arranged at the second end of the deflection frame 220 to rotate around the hinge axis at the hinge joint of the deflection frame 220 and the transition frame 210. When the vehicle is in a highway driving state, the piston rod 232 of the oil cylinder extends to the maximum stroke, and after the first locking hole 2132 on the deflection frame 220 and the second locking hole 2241 on the transition frame 210 reach a coaxial state, the deflection frame 220 and the transition frame 210 are connected through the pin shaft serving as the locking piece 225, so that the oil cylinder reaches a mechanical locking state, accidents caused by hydraulic locking failure of the oil cylinder of a rail dual-purpose vehicle in a highway high-speed driving state are avoided, and a dual-guarantee effect is achieved.

As shown in fig. 4, 6 and 8, the guide wheel assembly 240 includes a guide wheel 241, an axle 242, a set of springs 247, a spring seat 248 and a brake.

The biasing frame 220 is resiliently connected to the guide wheel assembly 240 by a spring 247.

The guide wheel assembly 240 in this embodiment includes 8 springs 247 and corresponding threaded connection assemblies 2471. The threaded connection assembly 2471 includes a double-start screw, a nut, and a retainer ring. The spring seat 248 is provided with a threaded hole corresponding to the double-threaded screw, the mounting seat 222 is provided with a through hole 2221 corresponding to the double-threaded screw, the second end of the double-threaded screw passes through the corresponding through hole 2221 and the series of springs 247 from the side of the mounting seat 222 far away from the spring seat 228, and the threaded section of the second end of the double-threaded screw is matched with the corresponding threaded hole on the spring seat 248, so that the double-threaded screw is fixedly connected with the spring seat 248. The shank of the double-ended screw is a sliding fit with the bore 2221. The first end of double-end screw is equipped with the retaining ring that the diameter is greater than perforation 2221, and the nut is located keeping away from one side of double-end screw second end of retaining ring and cooperates with the screw thread section of double-end screw's first end. The primary spring 247 applies an opposite force to the spring seat 248 and the mounting seat 222 after assembly, and the mounting seat 222 abuts against the retainer ring under the action of the spring force when the primary spring 247 is in the initial state. When the guide wheel 241 contacts the ground, if the mounting base 222 applies an additional force to the first spring 247 downward due to the vibration of the rail vehicle, if the force applied to the first spring 247 by the mounting base 222 overcomes the elastic force of the first spring 247, the mounting base 222 moves toward the spring base 248 until the elastic force of the first spring 247 is balanced again, and when the additional force of the mounting base 222 is eliminated, the mounting base 222 and the retainer ring are restored to the state of being attached to each other.

The brake device is attached to the outside of the guide wheel 241, and includes a brake disk 243, a brake holder 244, a service brake control unit 245, and a parking brake control unit 246.

The number of the guide wheels 241 is two, the two guide wheels 241 are connected together through an axle 242, and the axle 242 and the guide wheels 241 are connected through bearings to realize relative rotation.

There are two brake disks 243, brake base 244, service brake control unit 245, and parking brake control unit 246. The two brake seats 244 are connected to both ends of the wheel shaft 242 as first brake portions by flat keys and fixed by bolts, respectively. The two brake disks 243 are fixedly connected to the outer end surfaces of the two guide wheels 241 as second brake portions by bolts. The service brake control part 245 and the parking brake control part 246 are fixedly installed on the brake base 244 through bolts, and the service brake control part 245 and the parking brake control part 246 are installed on the outermost side, so that the maintenance is convenient.

As can be seen from the above description, the dual-purpose rail vehicle and the guide wheel mechanism thereof according to the above embodiments of the present disclosure have at least one of the following advantages:

the guide wheel mechanism adopts a modular design, is convenient for realizing the quick assembly and disassembly of the whole guide wheel mechanism, and is beneficial to improving the efficiency of the rail dual-purpose vehicle in executing tasks such as transition, rescue and the like.

The damping element of the guide wheel mechanism adopts a series spring 247, and the upper end and the lower end of the series spring 247 are respectively embedded into the spring seat 248 and the positioning rabbets arranged on the deflection frame 220, so that the high-frequency vibration can be effectively filtered, and the stability in high-speed operation can be improved.

When the vehicle runs on a highway, the oil cylinder can reach a mechanical locking state through the position locking structure, so that accidents caused by hydraulic locking failure of the oil cylinder when the vehicle runs on the highway and the rail dual-purpose vehicle runs on the highway are avoided, and the dual-guarantee function is achieved.

The braking device is arranged on the outer side of the guide wheel, and is convenient to overhaul.

Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the embodiments of the disclosure or equivalent replacements of parts of the technical features may be made, which are all covered by the technical solution claimed by the disclosure.

Claims

1. A guide wheel mechanism (200) of a dual-purpose vehicle for a track having a track running state and a road running state, comprising:

a transition frame (210) including a vehicle body attachment portion for detachably attaching to a vehicle body (100) of the rail vehicle;

a yaw frame (220), the yaw frame (220) being hinged to the transition frame (210);

a guide wheel assembly (240) connected to the yaw frame (220); and

a driving cylinder (230), a first end of the driving cylinder (230) is hinged to the transition frame (210), a second end of the driving cylinder (230) is hinged to the deflection frame (220), the driving cylinder (230) is used for adjusting the distance between the guide wheel assembly (240) and the transition frame (210) to control the guide wheel mechanism (200) to switch between the track running state and the road running state;

wherein the transition frame (210), the yaw frame (220), the guide wheel assembly (240), and the driving cylinder (230) form a modular structure that is integrally detachable with the vehicle body (100) through the vehicle body coupling portion.

2. The guide wheel mechanism (200) of claim 1, wherein the transition frame (210) comprises:

the two first connecting lug plates (213) are respectively and fixedly connected to two first corners of the transition frame body, and the vehicle body connecting part comprises a first hanging hole (2131) arranged on the first connecting lug plates (213); and

second connect otic placode (214), two second connect otic placode (214) respectively fixed connection in two second bights of transition frame framework, car body connecting portion including set up in second hookup hole (2141) on second connect otic placode (214).

3. The guide wheel mechanism (200) of claim 2,

the first connecting lug plate (213) is provided with a first hinge hole for being hinged with the swing frame (220);

the second connecting lug plate (214) is provided with a second hinge hole (2142) which is used for being hinged with the first end of the driving cylinder (230);

the swing frame (220) includes that third connects otic placode (223) and fourth and connects otic placode (226), be provided with on third connects otic placode (223) with first articulated hole corresponds third articulated hole (2231) that sets up, be provided with on fourth connects otic placode (226) be used for with the articulated fourth articulated hole of second end of driving cylinder (230).

4. The guide wheel mechanism (200) of claim 1,

the swing frame (220) comprises a swing frame body (221) and a mounting seat (222), a first end of the swing frame body (221) is hinged to a first end of the transition frame (210), and the mounting seat (222) is arranged at a second end of the swing frame body (221);

the guide wheel assembly (240) comprises a guide wheel (241), an axle (242), a series of springs (247) and a spring seat (248), the guide wheel (241) is rotatably installed on the axle (242), the spring seat (248) is fixedly connected to the axle (242), the installation seat (222) and the spring seat (248) are in floating connection through a threaded connection assembly (2471), and the series of springs (247) are arranged between the installation seat (222) and the spring seat (248).

5. The guide wheel mechanism (200) of claim 4,

a first positioning spigot is arranged on one side, facing the first series of springs (247), of the mounting seat (222), and a first end of each first series of springs (247) is matched with the first positioning spigot in a positioning mode;

one side of the spring seat (248) facing the first series of springs (247) is provided with a second positioning spigot, and the second end of the first series of springs (247) is matched with the second positioning spigot in a positioning mode.

6. The guide wheel mechanism (200) of claim 1, wherein the guide wheel assembly (240) comprises:

a guide wheel (241);

an axle (242), the guide wheel (241) being rotatably mounted on the axle (242); and

the braking device is used for carrying out service braking and/or parking braking on the guide wheel (241), is positioned outside the guide wheel (241), and comprises a first braking part arranged on the wheel shaft (242) and a second braking part arranged on the guide wheel (241).

7. The guide wheel mechanism (200) according to any one of claims 1-6, characterized in that the guide wheel mechanism (200) further comprises a position locking structure for locking the relative positions of the transition frame (210) and the yaw frame (220) in the road driving condition.

8. The guide wheel mechanism (200) of claim 7, wherein the position locking mechanism comprises:

a first locking hole (2132) disposed on the transition frame (210);

a second locking hole (2241) provided in the yaw frame (220);

and a locking member (225) that is engaged with the first locking hole (2132) and the second locking hole (2241) in the road running state, and is disengaged from at least one of the first locking hole (2132) and the second locking hole (2241) in the track running state.

9. A road-rail vehicle comprising a vehicle body (100) and a guide wheel mechanism (200), characterized in that the guide wheel mechanism (200) is the guide wheel mechanism (200) according to any one of claims 1 to 8, and the guide wheel mechanism (200) is integrally detachably connected with the vehicle body (100) through a vehicle body connecting part arranged on a transition frame (210) of the guide wheel mechanism.

10. The dual-purpose vehicle for roads and rails according to claim 9, wherein the guide wheel mechanism (200) is connected to the vehicle body (100) by a pin.