阅读说明：本技术 一种轮胎磨耗报警装置及具有其的轮胎总成 (Tire wear alarm device and have its tire assembly ) 是由 郭勇 张鑫 孟祥玉 高涛 王晨晨 于 2018-07-25 设计创作，主要内容包括：本发明提供了一种轮胎磨耗报警装置及具有其的轮胎总成,所述轮胎磨耗报警装置适于设置于轮胎内；所述轮胎适于行驶在可导电的道路上,且所述轮胎的外表面适于与所述可导电的道路接触；所述轮胎磨耗报警装置包括：磨耗件,所述磨耗件适于靠近所述轮胎的外表面设置；报警电路,所述报警电路的初始状态为断开；当所述磨耗件磨损至指定位置时,所述报警电路与所述可导电的道路形成闭合电路。本发明提供的轮胎磨耗报警装置,可在轮胎发生指定的磨损量时准确地、自动地报警。(The invention provides a tire wear warning device and a tire assembly with the same, wherein the tire wear warning device is suitable for being arranged in a tire; the tyre is suitable for running on an electrically conductive road, and the outer surface of the tyre is suitable for being in contact with the electrically conductive road; the tire wear warning device includes: a wear adapted to be disposed proximate an outer surface of the tire; the alarm circuit is in an initial state of disconnection; when the wearing part is worn to a designated position, the alarm circuit and the conductive road form a closed circuit. The tire wear alarm device provided by the invention can accurately and automatically alarm when the tire generates a specified wear amount.)

1. A tire wear alarm device is suitable for being arranged in a tire; the tyre is suitable for running on an electrically conductive road, and the outer surface of the tyre is suitable for being in contact with the electrically conductive road;

characterized in that the tire wear warning device comprises:

a wear adapted to be disposed proximate an outer surface of the tire;

the alarm circuit is in an initial state of disconnection;

when the wearing part is worn to a designated position, the alarm circuit and the conductive road form a closed circuit.

2. The tire wear warning device of claim 1, wherein the warning circuit includes a wire and an alarm; the wire is connected with the alarm in series to form a disconnected circuit, and two disconnected ends are formed;

when the wearing part is worn to a specified position, the two disconnected ends are in contact with the conductive road, so that the alarm circuit and the conductive road form a closed circuit.

3. The tire wear warning device of claim 2, wherein the warning circuit further comprises a power source; the power supply, the lead and the alarm are connected in series.

4. The tire wear warning device of claim 2, wherein the alarm is a buzzer.

5. The tire wear warning device of claim 2, further comprising a warning circuit housing; the alarm circuit shell wraps the alarm circuit.

6. The tire wear warning device of claim 5, wherein the warning circuit housing is generally "U" shaped, including two housing side portions and a housing bottom portion;

the shell side part comprises a connecting end and a contact end; the connecting end of the side part of the shell is connected with the bottom of the shell; the contact end of the side part of the shell is connected with the wearing part;

the contact end on the side part of the shell wraps the disconnected end of the alarm circuit; when the wearing part is worn to a specified position, the contact end of the side part of the shell and the disconnection end of the alarm circuit are both in contact with the conductive road.

7. The tire wear warning device of claim 6, wherein the housing bottom is provided with two retaining walls; the shell bottom wraps the alarm, and the alarm is located between the two limiting walls.

8. The tire wear warning device of claim 7, wherein the stopper wall is provided with a wire guide hole; the lead wire at least partially passes through the lead wire hole.

9. The tire wear warning device of claim 5, wherein the material of the warning circuit housing is the same as the material of the tire.

10. The tire wear warning device of any one of claims 5-9, wherein the warning circuit housing comprises two warning circuit half-housings; the two alarm circuit half shells wrap the alarm circuit; and the two alarm circuit half shells are fixedly connected.

11. The tire wear warning device of claim 1, wherein the wear piece is the same material as the tire.

12. The tire wear warning device of claim 1, further comprising a warning device housing; the alarm device shell wraps the wearing part and the alarm circuit; the alarm device shell is arranged in the tire.

13. The tire wear warning device of claim 12, wherein the warning device housing is generally cylindrical.

14. The tire wear warning device of claim 12, wherein the warning device housing is the same material as the tire.

15. The tire wear warning device of any one of claims 12-14, wherein the warning device housing comprises two warning device half-housings; the two alarm device half shells wrap the abrasion piece and the alarm circuit; and the two alarm device half shells are fixedly connected.

16. A tire assembly comprising a tire and the tire wear warning device of any one of claims 1-15;

the tyre is suitable for running on an electrically conductive road, and the outer surface of the tyre is suitable for being in contact with the electrically conductive road; the tire wear warning device is arranged in the tire.

17. The tire assembly of claim 16 wherein the outer surface of the tire is provided with wear holes; the tire abrasion alarming device is arranged in an abrasion hole of the tire.

18. The tire assembly of claim 17, wherein the wear holes are plural and are circumferentially arranged on the outer surface of the tire; and each wear hole is provided with one tire wear alarm device.

19. The tire assembly of claim 18 wherein a plurality of said wear holes are circumferentially arranged in front, middle and rear portions of the outer surface of the tire; and each wear hole is provided with one tire wear alarm device.

20. The tire assembly of claim 16 wherein the outer surface of the tire is grooved; the designated location is proximate to an outer surface of the tire and is a designated distance from a bottom of the groove.

21. The tire assembly of claim 20, wherein the specified distance is 0-3 mm.

22. A wheel comprising a tyre assembly according to any one of claims 16 to 21.

23. A rail vehicle, comprising running wheels; the running wheel of claim 22.

24. A rail vehicle, comprising horizontal wheels; the horizontal wheel is the wheel of claim 22.

25. A rail transit system comprising a rail and a rail vehicle according to claim 23 or 24; the track is a steel track.

Technical Field

The invention belongs to the technical field of vehicles, and particularly relates to a tire wear alarm device and a tire assembly with the same.

Background

In order to know the wear of the tire, a safety line is generally marked on a groove of the tire, and the distance between the tread and the safety line is observed to judge whether the tire needs to be replaced. However, the method for marking the safety line cannot know the wear condition of the tire in time, and if the wear of the tire exceeds the safety line and the vehicle is still running, accidents such as tire slipping and tire burst are easy to happen, and the safety of a driver and the safety of surrounding personnel are affected.

Disclosure of Invention

In view of the above technical problems, the present invention provides a tire, which can accurately and automatically alarm when a specified amount of wear occurs in the tire.

The specific technical scheme of the invention is as follows:

a tire wear alarm device is suitable for being arranged in a tire; the tyre is suitable for running on an electrically conductive road, and the outer surface of the tyre is suitable for being in contact with the electrically conductive road; the tire wear warning device includes:

a wear adapted to be disposed proximate an outer surface of the tire;

the alarm circuit is in an initial state of disconnection;

when the wearing part is worn to a designated position, the alarm circuit and the conductive road form a closed circuit.

The tire abrasion alarming device is arranged in the tire, the alarming circuit and the road are separated through the abrasion piece, and the alarming circuit is prevented from being damaged by particles on the road. When the abrasion part is abraded to a specified position, the alarm circuit is in contact with the conductive road to form a closed circuit, so that an alarm is given out, high automation of tire abrasion alarm is realized, safety performance of the tire is improved, and the tire abrasion alarm is simple and reliable in structure.

In addition, the tire provided according to the present invention may also have the following additional technical features.

In some examples of the invention, the alarm circuit comprises a wire and an alarm; the wire is connected with the alarm in series to form a disconnected circuit, and two disconnected ends are formed; when the wearing part is worn to a specified position, the two disconnected ends are in contact with the conductive road, so that the alarm circuit and the conductive road form a closed circuit. When the abrasion part is abraded to a specified position, two disconnected ends of the alarm circuit are in contact with the conductive road to form a closed circuit, so that an alarm is given out, high automation of tire abrasion alarm is realized, safety performance of the tire is improved, and the tire abrasion alarm is simple and reliable in structure.

In some examples of the invention, the alarm circuit further comprises a power supply; the power supply, the lead and the alarm are connected in series. The power supply is arranged in the alarm circuit, when two disconnected ends of the alarm circuit are in contact with the conductive road and form a closed circuit, the power supply can directly provide electric energy for alarming, high automation of tire wear alarming is realized, safety performance of the tire is improved, and the tire wear alarming device is simple and reliable in structure.

In some examples of the invention, the alarm is a buzzer. The alarm function is realized through the alarm sound of the buzzer, and people can be effectively warned.

In some examples of the invention, the tire wear warning device further comprises a warning circuit housing; the alarm circuit shell wraps the alarm circuit. The alarm circuit can be protected more effectively by wrapping the alarm circuit shell with the alarm circuit shell.

In some examples of the invention, the alarm circuit housing is substantially "U" shaped, comprising two housing sides and a housing bottom; the shell side part comprises a connecting end and a contact end; the connecting end of the side part of the shell is connected with the bottom of the shell; the contact end of the side part of the shell is connected with the wearing part; the contact end on the side part of the shell wraps the disconnected end of the alarm circuit; when the wearing part is worn to a specified position, the contact end of the side part of the shell and the disconnection end of the alarm circuit are both in contact with the conductive road. The U-shaped alarm circuit shell is convenient for arranging a lead of the alarm circuit and is beneficial to the contact between two disconnected ends of the alarm circuit and a road.

In some examples of the invention, the bottom of the housing is provided with two limiting walls; the shell bottom wraps the alarm, and the alarm is located between the two limiting walls. The two limiting walls limit the position of the alarm, so that the alarm is more stable in the movement of the tire.

In some examples of the invention, the limiting wall is provided with a wire guide hole; the lead wire at least partially passes through the lead wire hole.

In some examples of the invention, the material of the alarm circuit housing is the same as the material of the tire. The alarm circuit shell and the tire are made of the same material, so that the abrasion loss of the alarm circuit shell and the abrasion loss of the tire are kept consistent, the tire abrasion alarm device is higher in precision, and the alarm is more accurate.

In some examples of the invention, the alarm circuit housing comprises two alarm circuit half-housings; the two alarm circuit half shells wrap the alarm circuit; and the two alarm circuit half shells are fixedly connected.

In some examples of the invention, the wear member is the same material as the tire. The wearing part and the tire are made of the same material, so that the wearing amount of the wearing part is consistent with that of the tire, the precision of the tire wearing alarm device is higher, and the alarm is more accurate.

In some examples of the invention, the tire wear warning device further comprises a warning device housing; the alarm device shell wraps the wearing part and the alarm circuit; the alarm device shell is arranged in the tire. All parts of the tire wear alarm device are wrapped into a whole through the alarm device shell, so that the installation of the tire wear alarm device is greatly facilitated.

In some examples of the invention, the alarm device housing is substantially cylindrical.

In some examples of the invention, the material of the warning device housing is the same as the material of the tyre. The shell of the alarm device and the tire are made of the same material, so that the abrasion loss of the shell of the alarm device and the abrasion loss of the tire are kept consistent, the precision of the tire abrasion alarm device is higher, and the alarm is more accurate.

The alarm device shell comprises two alarm device half shells; the two alarm device half shells wrap the abrasion piece and the alarm circuit; and the two alarm device half shells are fixedly connected.

The invention also provides a tire assembly, which comprises a tire and the tire abrasion alarming device provided by the invention; the tyre is suitable for running on an electrically conductive road, and the outer surface of the tyre is suitable for being in contact with the electrically conductive road; the tire wear warning device is arranged in the tire. By adopting the tire wear alarm device provided by the invention, the tire assembly realizes high automation of tire wear alarm, improves the safety performance of the wheel, and has simple and reliable structure.

In some examples of the invention, the outer surface of the tire is provided with wear holes; the tire abrasion alarming device is arranged in an abrasion hole of the tire. The wear hole is formed in the outer surface of the tire, so that the tire wear warning device can be mounted conveniently.

In some examples of the invention, the wear holes are plural and arranged circumferentially on the outer surface of the tire; and each wear hole is provided with one tire wear alarm device. The tire wear alarm devices are arranged on the outer surface of the tire, so that the condition that the tire is locally worn but does not give an alarm can be avoided, and the safety performance of the tire is greatly improved.

In some examples of the invention, a plurality of the wear holes are circumferentially arranged at a front portion, a middle portion, and a rear portion of the outer surface of the tire; and each wear hole is provided with one tire wear alarm device. The front part, the middle part and the rear part of the outer surface of the tire are provided with the tire abrasion alarming devices, so that the condition that the tire is locally abraded or eccentrically worn but does not give an alarm can be avoided, and the safety performance of the tire is greatly improved.

In some examples of the invention, the outer surface of the tire is provided with grooves; the designated location is proximate to an outer surface of the tire and is a designated distance from a bottom of the groove. The outer surface of the tire is worn to the extent that the radial distance of the bottom of the groove is smaller than the specified distance, the alarm circuit is in contact with the conductive road and forms a closed circuit, the alarm is given, the vehicle driving safety problem caused by further wear of the tire is avoided, the high automation of tire wear alarm is realized, the safety performance of the tire is improved, and the tire is simple and reliable in structure.

In some examples of the invention, the specified distance is 0-3 mm.

The invention also provides a wheel comprising the tire assembly provided by the invention. By adopting the tire assembly provided by the invention, the high automation of tire wear alarm is realized, the safety performance of the wheel is improved, and the structure is simple and reliable.

The invention also provides a rail vehicle, which comprises walking wheels; the running wheels are the wheels provided by the invention. The running wheels serve the function of providing support and travel for the rail vehicle. By adopting the walking wheels provided by the invention, the rail vehicle realizes high automation of tire wear alarm, improves the safety performance of the rail vehicle, and has simple and reliable structure.

The invention also provides a rail vehicle, comprising horizontal wheels; the horizontal wheel is the wheel provided by the invention. The horizontal wheels serve the function of providing travel guidance and lateral stability for the rail vehicle. By adopting the horizontal wheel provided by the invention, the rail vehicle realizes high automation of tire wear alarm, improves the safety performance of the rail vehicle, and has simple and reliable structure.

The invention also provides a rail transit system, which comprises a rail and the rail vehicle provided by the invention; the track is a steel track. The tire abrasion alarming device is arranged in the abrasion hole, the abrasion piece separates the alarming circuit from the track, and the alarming circuit is prevented from being damaged by particles on the track. When the abrasion part is abraded to a specified position, the alarm circuit is in contact with the rail to form a closed circuit, an alarm is given, high automation of tire abrasion alarm is achieved, safety performance of the rail vehicle is improved, and the structure is simple and reliable.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a sectional view of a tire wear warning device provided in an embodiment of the present invention.

Fig. 2 is a schematic view of a tire wear warning device provided in an embodiment of the present invention.

Fig. 3 is an exploded view of a tire wear warning device provided in an embodiment of the present invention.

Fig. 4 is a sectional view of a tire wear warning device provided in an embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of a wheel provided by an embodiment of the present invention.

Fig. 6 is an enlarged view of the area a in fig. 5.

Fig. 7 is a schematic view of a wheel provided by an embodiment of the present invention.

Fig. 8 is a schematic diagram of a rail transit system provided by an embodiment of the present invention.

Fig. 9 is a schematic view of a rail transit system according to another embodiment of the present invention.

Reference numerals:

1000: a rail transit system;

100: a tire assembly; 101: a rim; 102: a retainer ring; 200: a wheel; 300: a bogie; 301: a frame; 302: a running wheel; 303: a horizontal wheel; 3031: a guide wheel; 3032: a stabilizing wheel; 400: a track; 400 a: a top surface of the rail; 400 b: an inner side wall of the track; 400 c: an outer side wall of the track;

1: a tire; 10: an outer surface of the tire; 11: a wear hole; 12; a pattern groove; 12 a: a bottom of a groove;

2: a tire wear alarm device; 21: a wear member;

22: an alarm circuit; 220: disconnecting the end; 221: a wire; 222: an alarm; 223: a power source;

23: an alarm circuit housing; 230: an alarm circuit half-shell; 231: a housing side portion; 231 a: a connecting end of the side of the housing; 231 b: a contact end of the side of the housing; 232: the bottom of the shell; 232 a: a limiting wall; 232 b: a wire guide hole;

24: an alarm device housing; 240; a half shell of the alarm device; 24 a: mounting holes;

p: a position is designated; d: the distance is specified.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "vertical", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The inventor of the present invention found through research and analysis that after the tire is severely worn, the rubber of the outer surface of the tire, which is responsible for providing the grip, disappears due to the wear, and the grip drops sharply. In rainy days, the pattern of the tire has the function of removing accumulated water on the tire, and after the tire is seriously worn, the pattern becomes shallow and even disappears, so that the grip force in rainy days is remarkably reduced. Therefore, after the tire is seriously worn, the vehicle is easy to slip or burst, even turn over, and serious traffic accidents are caused.

The inventor of the present invention also found through research and analysis that in order to understand the wear condition of the tire, a safety line is generally marked on a groove of the tire, and when the wear of the tire is found to exceed the safety line, the tire needs to be replaced. However, the wear of the tire is not always noticed by a general person, and the maintenance personnel is usually handed to check whether the tire needs to be replaced only when the vehicle is maintained. However, if the outer surface of the tire reaches or even exceeds the safety line due to factors such as severe wear, uneven positioning or impact of the tire before the tire is inspected, and a driver still drives the vehicle without finding the outer surface, traffic accidents are easy to happen, and the safety of the driver and the safety of surrounding personnel are affected. For the reasons, the inventor improves the existing tire to obtain the technical scheme of the invention.

A tire wear warning device 2, a tire assembly 100, a wheel 200, a rail vehicle, and a rail transit system 1000 provided according to an embodiment of the present invention will be described in detail below with reference to fig. 1 to 9. The wheel 200 includes a tire assembly 100, which can be used as a wheel of an automobile to drive the automobile on a road; the support can also be used as a traveling wheel of a rail vehicle, and plays a role in supporting and traveling the rail vehicle; the wheel can also be used as a horizontal wheel of a railway vehicle, is matched with a track, and plays a role in providing running guidance and transverse stability for the railway vehicle.

The direction of extension of the axis of rotation of the wheel 200 is axial, i.e. in the drawingxDirection of shaft extension, whereinxThe positive direction of the axis is the front direction,xthe negative axis direction is aft. The plane passing through the center of the wheel 200 and perpendicular to the axial direction is a circumferential plane. On the circumferential surface, the direction extending straight outward from the center of the wheel 200 is the radial direction, i.e., the direction in the drawingyThe axis extending direction, in which the direction close to the rotation axis of the wheel 200 is inward and the direction away from the rotation axis of the wheel 200 is outward. On the circumferential surface, the direction of rotation about the rotational axis of the wheel 200 is the circumferential direction, i.e., in the drawingwDirection of whichwThe positive direction is the clockwise direction,wthe negative direction is counter-clockwise.

As shown in fig. 5 to 6, the tire assembly 100 includes a tire 1 and a tire wear warning device 2. The tyre 1 is adapted to run on an electrically conductive road and the outer surface 10 of the tyre is adapted to be in contact with an electrically conductive road. The conductive road refers to: a road or track made at least in part of a conductor (metal such as steel) may conduct current as a circuit element in a circuit, and the outer surface 10 of the tire is adapted to contact the conductive part of the road. In some embodiments, tire assembly 100 is applied to running or steerable wheels of a rail vehicle, and the electrically conductive road is a steel rail.

As shown in fig. 5, the tire wear warning device 2 is provided in a tire. In some embodiments, the outer surface 10 of the tire is provided with a wear hole 11, and the tire wear warning device 2 is provided within the wear hole 11. In some embodiments, wear holes 11 are drilled into the outer surface 10 of the tire after the tire 1 is built. In other embodiments, projections are provided on the abutment mold of the tire 1 so that the wear holes 11 are automatically formed during the building of the tire 1.

As shown in fig. 1, the tire wear warning device 2 includes a wearing member 21 and a warning circuit 22. The wearing part 21 is arranged close to the outer surface 10 of the tyre and the alarm circuit 22 is initially open. When the wearing part 21 is worn to the designated position p, the alarm circuit 22 forms a closed circuit with the conductive road, namely, the tire wear alarm device 2 gives an alarm.

The tire wear warning device 2 is arranged in the wear hole 11, and the warning circuit 22 and the road are separated by the wear piece 21, so that the warning circuit 22 is prevented from being damaged by particles on the road. When the wearing part 21 is worn to the designated position p, the alarm circuit 22 is in contact with a conductive road to form a closed circuit, so that an alarm is given out, high automation of wear alarm of the tire assembly 100 is realized, the safety performance of the tire assembly 100 is improved, and the structure is simple and reliable.

As shown in fig. 1, the alarm circuit 22 includes a wire 221 and an alarm 222. The wire 221 is connected in series with the alarm 222 and forms two disconnected ends 220. When the abrasion part 21 is abraded to the designated position p, the two disconnected ends 220 are both contacted with the conductive road, so that the alarm circuit 22 and the conductive road form a closed circuit, namely the tire abrasion alarm device 2 gives an alarm at the moment, the high automation of abrasion alarm of the tire assembly 100 is realized, the safety performance of the tire assembly 100 is improved, and the structure is simple and reliable.

As shown in FIG. 1, in some embodiments, the alarm circuit 22 further includes a power supply 223; in some embodiments, power source 223 is a battery pack. The lead 221, alarm 222 and power supply 223 are connected in series and form two disconnected terminals 220. When the abrasion part 21 is abraded to the designated position p, the two disconnected ends 220 are both contacted with the conductive road, so that the alarm circuit 22 and the conductive road form a closed circuit, the power supply 223 can directly provide electric energy, and the tire abrasion alarm device 2 gives an alarm at the moment, thereby realizing high automation of abrasion alarm of the tire assembly 100, improving the safety performance of the tire assembly 100 and having simple and reliable structure.

In some embodiments, the alarm 222 is a buzzer. The alarm function is realized through the alarm sound of the buzzer, and people can be effectively warned.

As shown in fig. 1-2, the tire wear warning device 2 further includes a warning circuit housing 23. The alarm circuit shell 23 wraps the alarm circuit 22, and plays a more effective protection role for the alarm circuit 22.

As shown in FIGS. 1-2, in some embodiments, alarm circuit housing 23 is generally "U" -shaped, including two housing sides 231 and a housing bottom 232. The housing side 231 includes a connection end 231a and a contact end 231 b. The connection end 231a of the housing side is connected to the housing bottom 232. The contact end 231b of the housing side is connected to the wear member 21; in some embodiments, there are two wear members 21, each wear member 21 being connected to the contact end 231b of one of the housing sides. The contact end 231b of the side of the housing wraps around the disconnected end 220 of the alarm circuit 22. When the wearing part 21 is worn to the designated position p, the contact end 231b of the side part of the shell and the disconnection end 220 of the alarm circuit 22 are both contacted with the conductive road, so that the alarm circuit 22 and the conductive road form a closed circuit, namely the tire wearing alarm device 2 gives an alarm at the moment, the high automation of the wear alarm of the tire assembly 100 is realized, the safety performance of the tire assembly 100 is improved, and the structure is simple and reliable. The U-shaped alarm circuit housing 23 facilitates the arrangement of the conductors 221 of the alarm circuit 22 and facilitates the contact of the two disconnected ends 220 of the alarm circuit 22 with the road.

As shown in fig. 1, in some embodiments, the housing bottom 232 is provided with two retaining walls 232 a. The housing bottom 232 encloses the alarm 222 and the alarm 222 is located between two retaining walls 232 a. The two stop walls 232a define the position of the alarm 222, making the alarm 222 more stable in the movement of the tyre 1. In some embodiments, the housing bottom 232 also houses the power supply 223, and the power supply 223 is positioned between a retaining wall 232a and the alarm 222 to provide power for operation of the alarm 222.

As shown in fig. 1, in some embodiments, the limiting wall 232a is provided with a wire guide hole 232 b. The lead 221 is connected in series with the alarm 222 and the lead 221 passes through the lead opening 232b into the housing side 231 and finally forms the open end 220 of the alarm circuit 22 at the contact end 231b of the housing side.

In some embodiments, the material of the alarm circuit housing 23 is the same as the material of the tire 1, so that the amount of wear of the alarm circuit housing 23 and the tire 1 is consistent, thereby making the accuracy of the tire wear alarm device 2 more accurate. In some embodiments, the materials of both the alarm circuit housing 23 and the tire 1 are rubber.

As shown in FIG. 3, in some embodiments, the alarm circuit housing 23 includes two alarm circuit half-housings 230 and is made of rubber. After the alarm circuit 22 is disposed on one alarm circuit half case 230, the two alarm circuit half cases 230 are fixedly bonded together by vulcanization. The vulcanization is a process of adding a vulcanizing agent, an accelerator and other crosslinking auxiliaries into rubber, and converting macromolecules of the rubber into a three-dimensional network structure and crosslinking the macromolecules together under certain temperature and pressure conditions.

In some embodiments, the material of the wear member 21 is the same as the material of the tire 1, so that the amount of wear of the wear member 21 and the tire 1 is consistent, thereby making the accuracy of the tire wear warning device 2 more accurate. By setting the radial length of the wear member 21, the alarm condition of the tire wear alarm device 2 can be set. In some embodiments, the material of both the wear member 21 and the tire 1 is rubber.

As shown in fig. 4, the tire wear warning device 2 further includes a warning device housing 24. The wearing part 21, the alarm circuit 22 and the alarm circuit shell 23 are wrapped by the alarm device shell 24; in some embodiments, the alarm device housing 24 is provided with a mounting hole 24a, and the wear member 21, the alarm circuit 22, and the alarm circuit housing 23 are provided in the mounting hole 24 a. The alarm device housing 24 is arranged in the tire 1; in some embodiments, the warning device housing 24 mates with the wear hole 11 of the tire 1; in some embodiments, the warning device housing 24 is an interference fit with the wear hole 11 so that the tire wear warning device 2 does not fall off the tire 1. All parts of the tire abrasion alarm device 2 are wrapped into a whole through the alarm device shell 24, so that the high integration of the tire abrasion alarm device 2 is realized, and the installation of the tire abrasion alarm device 2 is greatly facilitated.

In some embodiments, the warning device housing 24 is generally cylindrical, i.e., the wear hole 11 is a circular hole, facilitating the machining of the wear hole 11 and the installation of the tire wear warning device 2.

In some embodiments, the material of warning device housing 24 is the same as the material of tire 1 so that the amount of wear of warning device housing 24 and tire 1 remains consistent, thereby making the accuracy of tire wear warning device 2 more accurate. In some embodiments, the material of the warning device housing 24 and the tire 1 is rubber.

In some embodiments, the bottom 232 of the alarm circuit housing 23 and the alarm device housing 24 are formed with through holes that communicate with each other. The through holes allow the alarm signal (sound, etc.) of the alarm 222 to be transmitted to the outside of the tire 1 more smoothly, thereby more effectively warning a person.

As shown in FIG. 3, in some embodiments, the alarm housing 24 includes two alarm housing halves 240 and is made of rubber. After arranging the alarm circuit 22, the alarm circuit housing 23 and the wearing member 21 on one alarm device half housing 240, the alarm device half housing 240 is bonded together by vulcanization.

As shown in fig. 5-7, the outer surface 10 of the tire is provided with grooves 12. The designated location p is proximate the outer surface 10 of the tire and is a designated distance d from the bottom 12a of the groove. When the outer surface 10 of the tire is worn to the extent that the radial distance from the bottom 12a of the groove is smaller than the designated distance d, the alarm circuit 22 is in contact with a conductive road and forms a closed circuit, namely, the tire wear alarm device 2 gives an alarm at the moment, so that the vehicle driving safety problem caused by further wear of the tire 1 is avoided, the high automation of the wear alarm of the tire assembly 100 is realized, the safety performance of the tire assembly 100 is improved, and the tire wear alarm device is simple and reliable in structure.

In some embodiments, the specified distance d is 0-3 mm; preferably, the specified distance d is 1.6mm or 2.4 mm.

As shown in fig. 7, in some embodiments, the wear holes 11 are multiple and arranged circumferentially on the outer surface 10 of the tire. Each wear hole 11 is provided with a tire wear warning device 2. The tire outer surface 10 is provided with a plurality of tire wear alarm devices 2, so that the condition that the tire 1 is locally worn but does not give an alarm can be avoided, and the safety performance of the tire assembly 100 is greatly improved.

As shown in fig. 7, in some embodiments, a plurality of wear holes 11 are circumferentially arranged at the front, middle and rear of the outer surface 10 of the tire. Each wear hole 11 is provided with a tire wear warning device 2. The front part, the middle part and the rear part of the outer surface 10 of the tire are provided with a plurality of tire abrasion alarming devices 2, so that the condition that the tire 1 is locally worn or eccentrically worn but does not give an alarm can be avoided, and the safety performance of the tire assembly 100 is greatly improved.

As shown in fig. 5 and 7, a wheel 200 according to an embodiment of the present invention includes a tire assembly 100, a rim 101, and a retainer ring 102. The tire assembly 100 is adapted to fit over a rim 101 and is retained by a retaining ring 102. The wheel 200 is in contact with the road through the tire assembly 100, thereby running on the road. By adopting the tire assembly 100, the wheel 200 realizes high automation of tire wear warning of the wheel 200, improves the safety performance of the wheel 200, and has a simple and reliable structure.

As shown in fig. 8-9, a rail vehicle is provided according to an embodiment of the present invention, including a bogie 300. The bogie 300 comprises running wheels 302 and a framework 301. The running wheels 302 are wheels 200 mounted on a frame 301 and adapted to engage in contact with the top surface 400a of the rail for supporting and driving the rail vehicle. The running wheels 302 are adopted by the rail vehicle, so that high automation of tire wear alarm is realized, the safety performance of the rail vehicle is improved, and the rail vehicle is simple and reliable in structure.

As shown in fig. 9, a railway vehicle provided according to an embodiment of the present invention includes a bogie 300. The bogie 300 comprises horizontal wheels 303 and a frame 301. The horizontal wheels 303 are wheels 200, and are mounted on the frame 301 and are suitable for being in contact fit with the inner side wall 400b of the track and/or the outer side wall 400c of the track, so as to play a role in running guidance and lateral stability for the railway vehicle. As shown in fig. 9, the horizontal wheel 303 may be a guide wheel 3031, which functions to provide travel guidance for the rail vehicle. As shown in fig. 9, horizontal wheels 303 may also be stabilizing wheels 3032, which function to provide lateral stability and prevent rollover of the rail vehicle. The rail vehicle adopts the horizontal wheels 303, so that the high automation of tire wear alarm is realized, the safety performance of the rail vehicle is improved, and the structure is simple and reliable.

As shown in fig. 8-9, a rail transit system 1000 according to an embodiment of the present invention includes a rail 400 and a rail vehicle. The rail 400 is a steel rail. In some embodiments, the track 400 is an overhead track beam. The tire wear warning device 2 is arranged in the tire 1, and the warning circuit 22 and the rail 400 are separated by the wearing piece 21, so that the warning circuit 22 is prevented from being damaged by particles on the rail 400. When the abrasion part 21 is abraded to the designated position p, the alarm circuit 22 is in contact with the track 400 to form a closed circuit, an alarm is given, high automation of tire abrasion alarm is achieved, safety performance of the railway vehicle is improved, and the structure is simple and reliable.

Other constructions and operations of the tire wear warning device 2, the tire assembly 100, the wheel 200, the rail vehicle, and the rail transit system 1000 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.