Intelligent monitoring system for looseness of fastener of urban rail vehicle

Abstract

An urban rail vehicle fastener loosening intelligent monitoring system disclosed by the present invention comprises an intelligent gasket body and a monitoring control system, the intelligent gasket body comprises a cover plate, a pressure monitoring assembly and a base, the intelligent gasket body is provided with a bolt hole, and the intelligent gasket body further comprises a plurality of elastic force monitoring assemblies, the elastic force monitoring assemblies are arranged in a surrounding mode at equal angles with the circle center of the bolt hole as the center. The monitoring control system comprises a comprehensive processing unit and an acquisition detection module; according to the intelligent monitoring system for looseness of the urban rail vehicle fastener, through automatic monitoring, the frequency and the error rate of manual inspection are greatly reduced, the labor intensity of workers is relieved, the maintenance cost is saved, secondly, real-time monitoring and informatization management of the fastener state are achieved, the equipment state can be grasped in time, the maintenance decision can be optimized, the management cost is reduced, and the intelligent monitoring system is suitable for popularization and application. The safety and the maintenance efficiency of the metro vehicle are effectively improved, and a reliable guarantee is provided for intelligent management of rail transit.

Description

Technical Field

[0001] The invention belongs to the technical field of urban rail vehicles, and in particular to an intelligent monitoring system for loose fasteners of urban rail vehicles. Background Art

[0002] With the development of urban rail transit, subways, as important public transportation tools in modern cities, have undertaken increasingly heavy passenger transport tasks. However, the loosening of key parts of subway vehicles, especially fasteners, may cause serious safety hazards, easily lead to the falling off of related components, and may further cause major safety accidents such as train derailment. At present, in order to ensure the connection safety of fasteners, subway operation and maintenance units need to invest a lot of manpower and material resources for regular inspection and maintenance, which is not only time-consuming and labor-intensive, but also may have the risk of untimely detection. In response to the above problems, the present application proposes an intelligent monitoring system for loose fasteners of urban rail vehicles, which determines whether the fasteners are loose by real-time monitoring of the pressure changes between the bolts and gaskets, so as to achieve early loosening warning and precise maintenance, reduce the occurrence of safety accidents, and effectively reduce maintenance costs. Summary of the invention

[0003] Purpose of the invention: To provide an intelligent monitoring system for loose fasteners of urban rail vehicles, which can determine whether the fasteners are loose by real-time monitoring of the pressure changes between bolts and washers, so as to achieve early loosening warning and precise maintenance, reduce the occurrence of safety accidents, and effectively reduce maintenance costs.

[0004] Technical solution:

[0005] An intelligent monitoring system for loose fasteners of urban rail vehicles, comprising an intelligent gasket body and a monitoring control system, wherein the intelligent gasket body comprises a cover plate, a pressure monitoring component and a base, wherein the pressure monitoring component is arranged between the cover plate and the base, wherein the pressure monitoring component comprises a pressure sensor and an integrated body, wherein the cover plate, the base and the pressure sensor are all provided with bolt holes with the same center and the same diameter, and further comprising a plurality of elastic force monitoring components, wherein the plurality of elastic force monitoring components are arranged around the center of the bolt hole at equal angles on a surface of the cover plate facing the pressure sensor, wherein the pressure sensor is further provided with a plurality of positioning members, wherein the plurality of positioning members are arranged around the center of the bolt hole at equal angles on the pressure sensor, and wherein the positioning members are arranged correspondingly to the elastic force monitoring member;

[0006] The monitoring and control system includes an integrated processing unit and an acquisition and detection module. The acquisition and detection module receives the force signal and inputs the corresponding data into the integrated processing unit through the data transmission module. The integrated processing unit summarizes the pressure data and performs data positioning, data processing and data transmission. The acquisition and detection module includes a pressure monitoring module and an elastic force monitoring module. The pressure monitoring module is used to acquire and receive the pressure data transmitted by the pressure monitoring component, and the elasticity monitoring module is used to acquire and receive the elastic force data transmitted by each of the elastic force monitoring components.

[0007] In a further embodiment, the elasticity monitoring assembly includes a support spring, a force sensor and two fixing seats, wherein one of the fixing seats is a first fixing seat fixed to the cover plate, the force sensor is arranged in the first fixing seat, and the other fixing seat is a second fixing seat, the second fixing seat is fixed to the bottom of the support spring, and the top of the support spring is fixedly connected to the first fixing seat;

[0008] The second fixing seat is cooperatively connected to the positioning member.

[0009] In a further embodiment, a guide member is further provided between the first fixed seat and the second fixed seat, the guide member comprising a guide rod, the guide rod being located in the support spring, the top end of the guide rod being fixed on the first fixed seat, the bottom end of the guide rod passing through a guide hole provided on the second fixed seat, the guide rod being slidably connected to the guide hole via a guide sliding member.

[0010] In a further embodiment, the guide sliding member includes a guide sliding block installed in the guide hole, the guide sliding block slides up and down in a guide sliding groove, and the guide sliding groove is provided on the rod body of the guide rod.

[0011] In a further embodiment, the positioning member includes a supporting positioning ring seat, which is used to support the second fixed block. The side longitudinal section of the supporting positioning ring seat is an inverted isosceles trapezoidal shape. A positioning hole is also provided in the supporting positioning ring seat, and the positioning hole cooperates with the bottom end of the guide rod to be inserted.

[0012] In a further embodiment, a distance monitoring component is also included, and the distance monitoring includes a plurality of distance monitoring parts. The plurality of distance monitoring parts are arranged on the smart gasket body at equal angles around the center of the bolt hole, and the distance monitoring parts are used to limit the position of the bolt in the bolt hole.

[0013] In a further embodiment, the distance monitoring components are provided in two groups, wherein one group of the distance monitoring components is provided in the cover plate corresponding to the bolt holes provided on the cover plate, and the other group of the distance monitoring components is provided in the base corresponding to the bolt holes provided on the base.

[0014] In a further embodiment, the distance monitoring member includes a limit block and an elastic support member, the elastic support member is arranged in a telescopic slot, the telescopic slot is provided on the smart gasket body and communicates with the bolt hole;

[0015] The limit block is located in the bolt hole and connected to the elastic support member, the elastic support member includes a support rod, a limit spring and a distance sensor, one end of the support rod extends out of the telescopic slot and is fixedly connected to the limit block, the other end is located in the telescopic slot and is connected to one end of the limit spring, and the other end of the limit spring is fixed in the telescopic slot;

[0016] The distance sensor is arranged in the telescopic slot to detect the position of the support rod.

[0017] In a further embodiment, a surface of the limiting block facing the bolt is arc-shaped.

[0018] In a further embodiment, the acquisition detection module further includes a distance detection module, which collects the distance data detected by the distance detection component and transmits it to the integrated processing unit through the data transmission module.

[0019] Beneficial effects of the present invention:

[0020] (1) Through automated monitoring, the frequency and error rate of manual inspections are greatly reduced, the labor intensity is reduced, and maintenance costs are saved. Secondly, real-time monitoring and information management of fastener status are realized, which can timely grasp the equipment status, optimize maintenance decisions, reduce management costs, and effectively improve the safety and maintenance efficiency of subway vehicles, providing reliable guarantees for the intelligent management of rail transit;

[0021] (2) Setting up several elastic force monitoring components for use with pressure monitoring components can further and accurately receive pressure data and improve the accuracy of detection. In addition, the surrounding distribution of several elastic force monitoring components can perform separate monitoring at each position. Therefore, when a fault or other abnormality occurs, the fault location can be accurately and quickly determined and the cause of the fault can be analyzed, and a solution can be formulated in a timely manner, thereby improving the efficiency of fault resolution, facilitating management, and better ensuring the operation of rail transit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the top view of the first pressure monitoring component and the base of Example 1 of the present invention.

[0023] Figure 2 It is a schematic diagram of the bottom view of the cover plate of Example 1 of the present invention.

[0024] Figure 3 It is a schematic diagram of the front cross-sectional structure of the cover plate of Example 1 of the present invention.

[0025] Figure 4 The present invention Figure 3 Enlarged structural diagram at A in the middle.

[0026] Figure 5 It is a front cross-sectional schematic diagram of the support and positioning ring seat of Example 1 of the present invention.

[0027] Figure 6 It is a schematic diagram of a control system of Example 1 of the present invention.

[0028] Figure 7 It is a schematic diagram of the top view structure of the gasket body of Example 2 of the present invention.

[0029] Figure 8 It is a schematic diagram of the front cross-sectional structure of the gasket body of Example 2 of the present invention.

[0030] Fig. 9 It is a schematic diagram of a control system of Example 2 of the present invention.

[0031] The accompanying drawings are marked as follows: base 1, pressure monitoring assembly 2, pressure sensor 21, integrated body 22, cover plate 3, bolt hole 4, positioning member 5, support positioning ring seat 51, positioning hole 52, elastic force monitoring assembly 6, support spring 61, force sensor 62, first fixed seat 63, second fixed seat 64, guide hole 641, guide member 65, guide rod 651, guide sliding member 652, distance detection assembly 7, limit block 71, support rod 711, distance sensor 72, limit spring 73, telescopic slot 74. DETAILED DESCRIPTION

[0032] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] Example 1

[0035] Reference Figure 1-6The present invention discloses an intelligent monitoring system for loosening of fasteners of urban rail vehicles, including an intelligent gasket body and a monitoring and control system, wherein the intelligent gasket body includes a cover plate 3, a pressure monitoring component 2 and a base 1, wherein the pressure monitoring component 2 is arranged between the cover plate 3 and the base 1, and specifically, the cover plate 3 and the base 1 can be fixed by connection methods such as snap-fitting and embedding to avoid the cover plate 3 and the base 1 being misaligned due to factors such as vibration, and the cover plate 3 and the base 1 can also be fixed at the connected end positions, and the fixing method includes welding, thereby avoiding the ends of the cover plate 3 and the base 1 from warping as the bolts become tighter, and stably connecting the cover plate 3 and the base 1 can effectively The overall stability is ensured, and the monitoring effect can be improved while protecting the pressure monitoring component. The pressure monitoring component 2 includes a pressure sensor 21 and an integrated body 22. The pressure sensor 21 is in a circular ring shape. The integrated body 22 includes a signal control and processing module, a wireless transmission module and a power supply module. The cover plate 3, the base 1 and the pressure sensor 21 are all provided with bolt holes 4 with the same center and the same diameter, and also include a plurality of elastic force monitoring components 6. The plurality of elastic force monitoring components 6 are arranged around the center of the bolt hole 4 at equal angles on the side of the cover plate 3 facing the pressure sensor 21. The pressure sensor 21 is also provided with a plurality of positioning members 5. A plurality of positioning members 5 are arranged on the pressure sensor 21 at equal angles with the center of the bolt hole 4 as the center. The positioning members 5 are arranged correspondingly to the elastic force monitoring components 6. The positioning members 5 and the elastic force monitoring components 6 are located at the periphery of the bolt hole 4. When the cover plate 3 is covered on the pressure monitoring component 2, the elastic force monitoring components 6 at the corresponding positions are connected to the positioning members 5. At this time, the pressure sensor 21 is subjected to uniform force, and each elastic force monitoring component 6 also applies force uniformly, so that it can be ensured during installation that there is no deviation between the force at a certain position and that at other positions between the bolts, structures and nuts. Even if there is a deviation, it can be determined according to the data of the pressure sensor 21 and the elastic force monitoring components at each position. The data transmitted by the component 6 is adjusted in time; the monitoring and control system includes a comprehensive processing unit and a collection and detection module, the collection and detection module receives the force signal, and inputs the corresponding data into the comprehensive processing unit through the data transmission module, the comprehensive processing unit summarizes the pressure data, and performs data positioning, data processing and data transmission, and uploads the final result to the ground or the front of the vehicle for relevant personnel to monitor or automatically monitor, the collection and detection module includes a pressure monitoring module and an elastic force monitoring module, the pressure monitoring module is used to collect and receive the pressure data transmitted by the pressure monitoring component 2, and the elasticity monitoring module is used to collect and receive the elastic force data transmitted by each of the elastic force monitoring components 6.

[0036] The elastic monitoring assembly includes a support spring 61, a force sensor 62 and two fixing seats, one of which is a first fixing seat 63 fixed on the cover plate 3, and the force sensor 62 is arranged in the first fixing seat 63, and the other fixing seat is a second fixing seat 64, and the second fixing seat 64 is fixed to the bottom of the support spring 61, and the top of the support spring 61 is fixedly connected to the first fixing seat 63; the second fixing seat 64 cooperates with the positioning member 5 to cover the cover plate 3 on the base 1 and cover the pressure monitoring assembly 2, and the second fixing seat 64 is connected to the positioning member 5 at the corresponding position, and the support spring 61 is compressed as the cover plate 3 and the base 1 are closed. The smart gasket body is assembled. When bolts and nuts are used to connect and fix the smart gasket body, as the nuts and bolts resist each other, the force sensor 62 detects the force signal and transmits it to the acquisition and detection module. The acquisition and detection module detects the force applied to each force sensor 62 and matches it with the force data transmitted by the pressure sensor 21 to ensure that the force data of the pressure sensor 21 is the first preset data and that the force data of each force sensor 62 is the same as the second preset data, thereby ensuring that the force between the bolt and the nut is a balanced force and that uneven force will not occur at a certain angle of the pressure sensor 21, thereby affecting the tightness of the connection between the nut and the bolt.

[0037] A guide member 65 is also provided between the first fixed seat 63 and the second fixed seat 64, and the guide member 65 includes a guide rod 651. The guide rod 651 is located in the support spring 61, and the top end of the guide rod 651 is fixed on the first fixed seat 63, and the bottom end passes through a guide hole 641 provided on the second fixed seat 64. The guide rod 651 is slidably connected to the guide hole 641 through a guide sliding member 652.

[0038] The guide sliding member 652 includes a guide sliding member installed in the guide hole 641, and the guide sliding member slides up and down in the guide sliding groove. The guide sliding groove is arranged on the rod body of the guide rod 651. The sliding direction and sliding range of the guide sliding member in the guide sliding groove are consistent with the extension and retraction direction and extension and retraction range of the support spring 61. The setting of the guide sliding member 652 can avoid the deviation of the support spring 61, so that the support spring 61 can be extended and retracted at a preset position.

[0039] The positioning member 5 includes a supporting positioning ring seat 51, and the supporting positioning ring seat 51 is used to support the second fixed block. The side longitudinal section of the supporting positioning ring seat 51 is in the shape of an inverted isosceles trapezoid. A positioning hole 52 is also provided in the supporting positioning ring seat 51. The positioning hole 52 cooperates with the bottom end of the guide rod 651 to be inserted. When the second fixed seat 64 is inserted into the supporting positioning ring seat 51, the guide rod 651 is also inserted into the positioning hole 52 at the corresponding position. At this time, the elastic force monitoring component 6 is limited between the pressure sensor 21 and the cover plate 3. As the nut loosens, the pressure between the base 1 and the cover plate 3 will decrease, thereby reducing the pressure sensed by the pressure sensor 21. If the pressure at a certain angle position between the base 1 and the cover plate 3 is different from the pressure at other positions, the position can also be determined by the data transmitted by the elastic force monitoring components 6 at different positions.

[0040] Example 2

[0041] Reference Figure 7-9 On the basis of Example 1, the difference from Example 1 is that the present invention discloses an intelligent monitoring system for loosening of urban rail vehicle fasteners, which also includes a distance monitoring component. The distance monitoring includes a plurality of distance monitoring parts. The plurality of distance monitoring parts are arranged on the intelligent gasket body at equal angles around the center of the bolt hole 4. The distance monitoring parts are used to limit the position of the bolt in the bolt hole 4, so that the bolt is located in the correct position in the bolt hole 4 to avoid uneven force caused by skewness.

[0042] The distance monitoring components are provided with two groups, wherein one group of the distance monitoring components is provided in the cover plate 3 corresponding to the bolt holes 4 provided on the cover plate 3, and the other group of the distance monitoring components is provided in the base 1 corresponding to the bolt holes 4 provided on the base 1, which can further limit the position of the bolts, thereby making the position accuracy and connection stability of the bolts higher.

[0043] The distance monitoring component includes a limit block 71 and an elastic support component, the elastic support component is arranged in a telescopic groove 74, the telescopic groove 74 is opened on the smart gasket body, that is, the base 1 and the cover plate 3 and connected to the bolt hole 4; the limit block 71 is located in the bolt hole 4 and is connected to the elastic support component, the elastic support component includes a support rod 711, a limit spring 73 and a distance sensor 72, one end of the support rod 711 extends out of the telescopic groove 74 and is fixedly connected to the limit block 71, and the other end is located in the telescopic groove 74 and is connected to one end of the limit spring 73, and the other end of the limit spring 73 is fixed to the The telescopic slot 74; the distance sensor 72 is arranged in the telescopic slot 74 to detect the position of the support rod 711. The bolt is inserted into the bolt hole 4, and the outer wall of the bolt fits with the limit block 71. The limit block 71 is forced to move in the direction of the telescopic slot 74. At this time, the limit spring 73 is compressed, and the support rod 711 also slides deep into the telescopic slot 74. When the position data of the support rod 711 in the telescopic slot 74 monitored by the distance sensors 72 in several telescopic slots 74 are consistent, it means that the bolt is in the correct preset position without deviation, and it can also better ensure the balanced degree of force when the nut is fixed later.

[0044] The side of the limiting block 71 facing the bolt is arc-shaped, and the arc shape can better match the shape of the bolt.

[0045] The acquisition and detection module also includes a distance detection module, which collects the distance data detected by the distance detection component 7 and transmits it to the integrated processing unit through the data transmission module.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0047] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An intelligent monitoring system for loose fasteners of urban rail vehicles, comprising an intelligent gasket body and a monitoring control system, wherein the intelligent gasket body comprises a cover plate, a pressure monitoring component and a base, wherein the pressure monitoring component is arranged between the cover plate and the base, wherein the pressure monitoring component comprises a pressure sensor and an integrated body, wherein the cover plate, the base and the pressure sensor are all provided with bolt holes with the same center and the same diameter, wherein: It also includes a plurality of elastic force monitoring components, which are arranged around the center of the bolt hole at equal angles on the side of the cover plate facing the pressure sensor, and a plurality of positioning members are arranged around the center of the bolt hole at equal angles on the pressure sensor, and the positioning members are arranged correspondingly to the elastic force monitoring components; The monitoring and control system includes an integrated processing unit and an acquisition and detection module. The acquisition and detection module receives the force signal and inputs the corresponding data into the integrated processing unit through the data transmission module. The integrated processing unit summarizes the pressure data and performs data positioning, data processing and data transmission. The acquisition and detection module includes a pressure monitoring module and an elastic force monitoring module. The pressure monitoring module is used to acquire and receive the pressure data transmitted by the pressure monitoring component, and the elasticity monitoring module is used to acquire and receive the elastic force data transmitted by each of the elastic force monitoring components.

2. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 1 is characterized in that: The elasticity monitoring assembly includes a support spring, a force sensor and two fixing seats, one of which is a first fixing seat fixed on the cover plate, the force sensor is arranged in the first fixing seat, and the other fixing seat is a second fixing seat, the second fixing seat is fixed on the bottom of the support spring, and the top of the support spring is fixedly connected to the first fixing seat; The second fixing seat is cooperatively connected to the positioning member.

3. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 2 is characterized in that: A guide member is also provided between the first fixed seat and the second fixed seat, and the guide member includes a guide rod, and the guide rod is located in the support spring. The top end of the guide rod is fixed on the first fixed seat, and the bottom end passes through a guide hole provided on the second fixed seat. The guide rod is slidably connected to the guide hole through a guide sliding member.

4. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 3 is characterized in that: The guide sliding member comprises a guide sliding block installed in the guide hole, the guide sliding block slides up and down in a guide sliding groove, and the guide sliding groove is provided on the rod body of the guide rod.

5. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 4 is characterized in that: The positioning member includes a supporting positioning ring seat, which is used to support the second fixing block. The side longitudinal section of the supporting positioning ring seat is an inverted isosceles trapezoidal shape. A positioning hole is also provided in the supporting positioning ring seat, and the positioning hole cooperates with the bottom end of the guide rod to be inserted.

6. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 1 is characterized in that: It also includes a distance monitoring component, which includes a plurality of distance monitoring parts. The plurality of distance monitoring parts are arranged on the smart gasket body at equal angles around the center of the bolt hole. The distance monitoring parts are used to limit the position of the bolt in the bolt hole.

7. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 6 is characterized in that: The distance monitoring components are provided in two groups, wherein one group of the distance monitoring components is provided in the cover plate corresponding to the bolt holes provided in the cover plate, and the other group of the distance monitoring components is provided in the base corresponding to the bolt holes provided on the base.

8. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 6 is characterized in that: The distance monitoring component includes a limit block and an elastic support component, wherein the elastic support component is arranged in a telescopic slot, and the telescopic slot is arranged on the smart gasket body and connected to the bolt hole; The limit block is located in the bolt hole and connected to the elastic support member, the elastic support member includes a support rod, a limit spring and a distance sensor, one end of the support rod extends out of the telescopic slot and is fixedly connected to the limit block, the other end is located in the telescopic slot and is connected to one end of the limit spring, and the other end of the limit spring is fixed in the telescopic slot; The distance sensor is arranged in the telescopic slot to detect the position of the support rod.

9. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 8 is characterized in that: A side of the limiting block facing the bolt is arc-shaped.

10. The intelligent monitoring system for loose fasteners of urban rail vehicles according to claim 6, characterized in that: The acquisition detection module also includes a distance detection module, which collects the distance data detected by the distance detection component and transmits it to the integrated processing unit through the data transmission module.

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