CN219692092U - Additional railway wagon brake shoe abrasion detection device and railway wagon - Google Patents
Additional railway wagon brake shoe abrasion detection device and railway wagon Download PDFInfo
- Publication number
- CN219692092U CN219692092U CN202320082234.XU CN202320082234U CN219692092U CN 219692092 U CN219692092 U CN 219692092U CN 202320082234 U CN202320082234 U CN 202320082234U CN 219692092 U CN219692092 U CN 219692092U
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- brake shoe
- detection device
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- railway wagon
- wear detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000005299 abrasion Methods 0.000 title claims abstract description 27
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 239000011214 refractory ceramic Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 3
- 239000011888 foil Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010408 film Substances 0.000 description 32
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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Abstract
The utility model discloses an additional railway wagon brake shoe abrasion detection device and a railway wagon, relates to the technical field of railway vehicle braking, solves the problem that the existing intelligent brake shoe detection device influences the brake shoe braking effect, and avoids the influence of the detection device on the brake shoe braking, and specifically adopts the following scheme: the upper block is connected with an upper terminal through wireless transmission to be used for receiving and transmitting signals, the additional film is a tuning capacitor, and the tuning capacitor is of a film structure with hardness softer than that of the friction body.
Description
Technical Field
The utility model relates to the technical field of railway vehicle braking, in particular to an additional railway wagon brake shoe abrasion detection device and a railway wagon.
Background
The brake shoe is a braking part for stopping the train by directly rubbing wheels during running braking of the train, so that the wear condition of the brake shoe is required to be checked manually at regular intervals for ensuring the braking performance and running safety of the vehicle, and the conditions of braking accidents and the like caused by loss of braking performance after the friction material is prevented from being worn to a limited extent are avoided, so that manpower and time are wasted, and the checking result is inaccurate due to the influence of subjective judgment.
The inventor finds that in order to solve the defect of manual inspection, an intelligent brake shoe detection device (for example, publication number CN 115096172A) is provided, detection conductors are drilled and installed at two ends of a brake shoe in a threaded manner, and the detection conductors are connected with the detection device through a wire harness, so that on one hand, the brake shoe needs to be drilled, the mechanical property of the brake shoe is damaged, and the braking effect is affected; on the other hand, the detecting conductor is made of metal material, the hardness of the detecting conductor is larger than that of the friction body of the brake shoe, and when the detecting conductor is worn, the friction of the friction body is seriously affected, so that the braking is affected.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the additional railway wagon brake shoe abrasion detection device and the railway wagon, the detection device is connected with a brake shoe in a pasting mode, the mechanical property of the brake shoe is not damaged, the additional film of the detection device is of a film structure, the hardness is softer than that of a brake shoe friction body, the braking effect is not influenced, and the problem that the existing intelligent brake shoe detection device influences the braking effect of the brake shoe is solved.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
according to the first aspect, the embodiment of the utility model provides an additional railway wagon brake shoe abrasion detection device, which comprises an upper block and an additional film, wherein the upper block is adhered to the inner side surface of a brake shoe tile back, the additional film is adhered to the side surface of a friction body, the upper block is connected with the additional film through a metal contact, the upper block is integrated with an active electronic tag, a metal contact, a strain gauge and an internal connecting wire into a whole, the upper block is connected with an upper terminal through wireless transmission so as to be used for receiving and transmitting signals, the additional film is a tuning capacitor, and the tuning capacitor is of a film structure with hardness softer than that of the friction body.
As a further implementation mode, the active electronic tag is integrated by an antenna coil, a resistor, a crystal oscillator, a capacitor and a main control chip, the upper block is further provided with a battery, and the battery, the active electronic tag, the metal contact, the strain gauge and the internal connecting wire are packaged together through ceramics to form the upper block.
As a further implementation, the ceramic is a refractory ceramic.
As a further implementation manner, the strain gauge is positioned on the back of the upper block, the strain gauge is adhered to the metal on the inner side of the tile back, and the lower surface of the upper block is parallel to the upper surface of the additional film.
As a further implementation, the additional film is located within the wear limit marking zone on the friction body.
As a further implementation mode, the upper surface of the cambered surface of the additional film is flush with the upper surface of the cambered surface of the brake shoe, and the lower end of the cambered surface is flush with the lower end of the cambered surface of the brake shoe.
As a further implementation, the strain gauge is a conductor with a set resistance value.
As a further implementation manner, the strain gauge is of a patch type structure.
In a second aspect, another embodiment of the present utility model provides a railway wagon having a separately operable brake shoe wear detection device mounted on each brake shoe of the railway wagon.
As a further implementation mode, all brake shoe abrasion detection devices are connected with the upper terminal through wireless transmission.
The beneficial effects of the utility model are as follows:
1) The detection device is connected with the brake shoe in a sticking way, the mechanical property of the brake shoe is not damaged, and the additional film of the detection device is of a film structure, the hardness of the additional film is softer than that of the friction body of the brake shoe, and the braking effect is not influenced.
2) The upper block is packaged by high-temperature resistant ceramic, and the heat resistance of the upper block can be improved by ceramic packaging, so that the upper block is suitable for normal operation when high temperature is generated during the abrasion of brake shoes of various railway wagons.
3) The utility model reads the abrasion value of the brake shoe by the tuning change mode of the additional film capacitor, realizes the digital record of the abrasion value of the brake shoe of the railway wagon, and has simple operation, low cost and complete and accurate record compared with the manual inspection mode.
4) According to the utility model, the brake shoe pressure value is read through the resistance change mode of the strain gauge, so that the digital recording of the brake shoe pressure of the railway wagon is realized, the synchronous monitoring of the abrasion and the pressure of the brake shoe is realized, the operation is simple, the cost is low, and the recording is complete and accurate.
5) The upper block of the utility model is provided with the active electronic tag, and the device can monitor related data in real time by adopting an active electronic tag technology, thereby improving the safety coefficient of vehicle operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic structural view of a prior art brake shoe;
FIG. 2 is a schematic illustration of a prior art brake shoe wear limit marking zone;
FIG. 3 is a schematic illustration of an additional rail wagon brake shoe wear detection device according to one or more embodiments of the present utility model;
FIG. 4 is a schematic illustration of the mounting structure of an additional railway freight car brake shoe wear detection device in accordance with one or more embodiments of the present utility model;
FIG. 5 is a schematic view of a partially enlarged construction (partial perspective) of the construction shown in FIG. 4 at position A;
in the figure: the mutual spacing or size is exaggerated for showing the positions of all parts, and the schematic drawings are used only for illustration;
1, an antenna coil; 2. a resistor; 3. a crystal oscillator; 4. a capacitor; 5. a main control chip; 6. a metal contact; 7. a strain gage; 8. an internal connection; 9. a battery; 10. an additional film; 11. wear limit mark zone; 12. tile back; 13. a friction body.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
As described in the background art, the existing intelligent brake shoe detection device is provided with holes at two ends of a brake shoe and is provided with detection conductors in a threaded manner, the detection conductors are connected with the detection device through wire harnesses, and on one hand, the brake shoe needs to be drilled, so that the mechanical properties of the brake shoe are damaged, and the braking effect of the brake shoe is affected; on the other hand, the detection conductor is made of metal material, the hardness of the detection conductor is greater than that of the friction body of the brake shoe, when the detection conductor is worn, the friction of the friction body is seriously influenced, and further the braking is influenced.
Example 1
In a typical embodiment of the utility model, as shown in fig. 3-5, an additional railway wagon brake shoe abrasion detection device is provided, which comprises an upper block stuck to the inner side surface of a railway wagon brake shoe back 12 and an additional film 10 stuck to the side surface of a friction body 13, wherein the upper block is connected with the additional film through a metal contact 6 (a metal copper contact), the working current of the device is supplied by a battery 9 of the upper block, and the digital overhaul of the railway wagon brake shoe abrasion is realized through the tuning frequency change.
The upper block consists of an active electronic tag, a metal contact 6, a strain gauge 7 and an internal connecting wire 8, wherein the active electronic tag comprises an antenna coil 1, a resistor 2, a crystal oscillator 3, a capacitor 4 and a main control chip 5, the antenna coil 1, the resistor 2, the crystal oscillator 3, the capacitor 4 are integrated on the main control chip 5, a battery 9, the active electronic tag, the metal contact 6, the strain gauge 7 and the internal connecting wire 8 are packaged together through ceramics to form the upper block, the upper block is connected with an additional film 10 through the metal contact, the ceramics is high-temperature resistant ceramics, and the heat resistance of the upper block can be improved through the ceramic package so as to adapt to normal work when high temperature is generated when the brake shoes of various railway wagons are worn.
By adopting the active electronic tag technology, the device can monitor related data in real time, and the safety coefficient of vehicle operation is improved.
Specifically, the upper block is attached to the inside surface of the back of the shoe, the lower surface of the upper block is parallel to the upper surface of the additional film 10, and the strain gauge 7 on the back of the upper block is attached to the inside metal of the back of the shoe.
The upper block further comprises a battery 9, the battery 9 is a CR battery, and the battery 9 and the upper block are integrated into a whole, so that the number of accessories is reduced, and the space is saved.
The battery 9 is used for charging the capacitor 4, current is limited by the resistor 2 and then supplies power to the main control chip 5 to enable the main control chip 5 to work, the main control chip 5 reads the resistance state of the metal contact 6 and feeds back information to the upper terminal through the antenna coil 1, and the crystal oscillator 3 provides fixed clock frequency for the main control chip 5 to work.
In order to ensure the uniqueness of data reading, the ID data of each main control chip 5 is associated with the unique identification information (such as a car number) of the car, and after the car brake shoe is replaced, the upper terminal associates the ID data with the unique identification information of the car.
The additional film 10 is a tuning capacitor, the tuning capacitor has a thin film structure and is softer than the friction body 13, the additional film 10 is stuck on the side surface of the friction body 13 and is positioned in the abrasion limit marking area 11, and the additional film 10 is also provided with a metal contact 6, so that the additional film 10 is connected with the upper block through the metal contact 6.
Specifically, the additional film 10 is adhered and installed on the side surface of the friction body 13, the upper surface of the cambered surface of the additional film 10 is flush with the upper surface of the cambered surface of the brake shoe, and the lower end of the cambered surface is flush with the lower end of the cambered surface of the brake shoe.
The lower surface of the friction body 13 continuously moves upwards in the abrasion process of the brake shoe, when the friction body 13 is abraded into the abrasion limit marking area 11, the additional film 10 attached to the side surface of the friction body 13 is abraded along with the friction body 13, the capacitance tuning frequency value of the abraded additional film 10 (tuning capacitor) changes, the main control chip 5 in the upper block judges the abrasion condition of the brake shoe according to the capacitance tuning frequency value, and information is fed back to the upper terminal in a wireless transmission mode to inform maintenance personnel of the abrasion condition of the brake shoe, so that the driving safety of a vehicle is maintained.
The strain gauge 7 is of a patch type structure, the strain gauge 7 is a conductor with a set resistance value, when a vehicle brakes, the brake shoe receives pressure and conducts the pressure to the wheel, the shoe back 12 deforms when the brake shoe is pressed, the resistance value of the strain gauge 7 attached to the inner side of the shoe back changes along with the pressure of the brake shoe, the main control chip 5 can judge the pressure condition of the brake shoe according to the pressure condition of the brake shoe, and feed information back to an upper terminal through wireless transmission, the information fed back to the upper terminal further sends data to a vehicle maintenance database, manual maintenance or replacement of the brake shoe is guided, driving safety of the railway wagon is ensured, digital recording of the brake shoe pressure of the railway wagon is realized, and synchronous monitoring of the abrasion and the pressure of the brake shoe is realized.
It should be noted that if the brake shoe detection device is completely or partially lost due to accident during the running process of the vehicle, the device should be re-attached, installed and calibrated in time to maintain the running safety of the vehicle.
Example 2
In a typical embodiment of the utility model, a railway wagon is provided, each brake shoe of the railway wagon is correspondingly provided with a brake shoe abrasion detection device, the brake shoe abrasion detection device consists of an upper block and an additional film 10, the upper block is adhered to the inner side surface of a brake shoe backing 12 of the railway wagon, the additional film 10 is adhered to the side surface of a brake shoe friction body 13, and the upper block is connected with the additional film through a metal contact 6.
The additional film 10 is adhered and installed on the side face of the friction body 13 and is positioned in the abrasion limit marking area 11, the upper surface of the cambered surface of the additional film 10 is flush with the upper surface of the cambered surface of the brake shoe, and the lower end of the cambered surface is flush with the lower end of the cambered surface of the brake shoe.
All brake shoe abrasion detection devices are connected with the upper terminal through wireless transmission modes so as to collect abrasion conditions of each brake shoe of the vehicle, and can read data from a safe distance outside the vehicle body without influencing the running of the vehicle.
It can be understood that the brake shoe abrasion detection device on each brake shoe independently operates, the upper terminal and the brake shoe abrasion detection device can be in a one-to-many or many-to-many reading mode, no cable connection exists between the inside of the vehicle body and the whole train, the linkage and the unbinding of the vehicle are not influenced, the working efficiency is improved, the cost is reduced, and the reliability is improved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides an additional railway freight car brake shoe wear detection device, its characterized in that includes to paste in the last piece of brake shoe back of the body medial surface and paste in the additional membrane of friction body lateral surface, go up and connect through metal contact between piece and the additional membrane, go up the piece and be integrated as an organic wholely by active electronic tags, metal contact, foil gage and internal connection line, go up the piece and be connected with the host computer terminal through wireless transmission and be used for receiving and transmitting the signal, the additional membrane is tuning capacitor, tuning capacitor is the film structure of hardness softness than the friction body.
2. An additional railway wagon brake shoe abrasion detection device according to claim 1, wherein the active electronic tag is integrated by an antenna coil, a resistor, a crystal oscillator, a capacitor and a main control chip, the upper block is further provided with a battery, and the battery, the active electronic tag, the metal contact, the strain gauge and the internal connecting wire are packaged together through ceramics to form the upper block.
3. An add-on rail wagon brake shoe wear detection device in accordance with claim 2, wherein the ceramic is a refractory ceramic.
4. An additional railway wagon brake shoe wear detection device according to claim 1 wherein the strain gauge is located on the back of the upper block, the strain gauge is affixed to the metal inside the tile back, and the lower surface of the upper block is parallel to the upper surface of the additional film.
5. An add-on rail wagon brake shoe wear detection device in accordance with claim 1 wherein said additional film is located in a wear limit marking zone on the friction body.
6. An attached railway wagon brake shoe wear detection device according to claim 1, wherein the upper surface of the cambered surface of the attached film is flush with the upper surface of the cambered surface of the brake shoe, and the lower end of the cambered surface is flush with the lower end of the cambered surface of the brake shoe.
7. An add-on rail wagon brake shoe wear detection device as claimed in claim 1 wherein the strain gauge is a conductor of a set resistance value.
8. An add-on rail wagon brake shoe wear detection device as claimed in claim 1 wherein the strain gauge is of a patch type construction.
9. An additional railway wagon brake shoe wear detection device according to any one of claims 1-8, wherein each brake shoe of the railway wagon is provided with a brake shoe wear detection device which operates independently.
10. A railway wagon according to claim 9, wherein all brake shoe wear detection means are connected to the upper terminal by wireless transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320082234.XU CN219692092U (en) | 2023-01-12 | 2023-01-12 | Additional railway wagon brake shoe abrasion detection device and railway wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320082234.XU CN219692092U (en) | 2023-01-12 | 2023-01-12 | Additional railway wagon brake shoe abrasion detection device and railway wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692092U true CN219692092U (en) | 2023-09-15 |
Family
ID=87944023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320082234.XU Active CN219692092U (en) | 2023-01-12 | 2023-01-12 | Additional railway wagon brake shoe abrasion detection device and railway wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692092U (en) |
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2023
- 2023-01-12 CN CN202320082234.XU patent/CN219692092U/en active Active
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