CN112706742B - Brake cylinder monitoring device and system and 25t axle load aluminum alloy coal hopper car - Google Patents
Brake cylinder monitoring device and system and 25t axle load aluminum alloy coal hopper car Download PDFInfo
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- CN112706742B CN112706742B CN202011476474.5A CN202011476474A CN112706742B CN 112706742 B CN112706742 B CN 112706742B CN 202011476474 A CN202011476474 A CN 202011476474A CN 112706742 B CN112706742 B CN 112706742B
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- brake cylinder
- pressure
- aluminum alloy
- coal hopper
- hopper car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D7/00—Hopper cars
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
Abstract
The application provides a brake cylinder monitoring devices, system and 25t axle load aluminum alloy coal hopper car. The 25t axle weight aluminum alloy coal hopper wagon comprises an end wall vertical plate, a supporting plate and a bottom plate. The brake cylinder monitoring device includes: strain gauge pressure sensors, pressure switches, and control devices. The strain type pressure sensor is arranged in an installation space formed by surrounding the vertical plate of the end wall, the supporting plate and the bottom plate. The strain type pressure sensor is communicated with a brake cylinder of a 25t axle weight aluminum alloy coal hopper car. The pressure switch is arranged in the installation space. The pressure switch is communicated with a brake cylinder of a 25t axle weight aluminum alloy coal hopper car. The pressure switch is used for determining whether to output the trigger signal according to the pressure value of the brake cylinder. The control device is respectively and electrically connected with the strain type pressure sensor and the pressure switch. When the control device receives the trigger signal, the control device enters a working state from a sleep state, detects the current pressure value in the brake cylinder through the strain type pressure sensor, and outputs the current pressure value.
Description
Technical Field
The application relates to the technical field of railway wagons, in particular to a brake cylinder monitoring device and system and a 25t axle load aluminum alloy coal hopper wagon.
Background
The railway transportation has the characteristics of high efficiency and environmental protection, and the advantages of the railway transportation can be reflected more and more along with the development of the world economy. With the rapid development of world economy, the transportation of bulk goods such as abundant minerals, grains, chemical raw materials and the like creates a solid and stable material foundation for the long-term and efficient operation of world railway freight.
During operation of a railway freight car, the pressure of a brake cylinder pressure pipe of the railway freight car needs to be checked. At present, pressure detection for a brake cylinder pressure pipe of a railway freight vehicle is to determine whether the pressure of the brake cylinder pressure pipe is in a normal range or not in a mode of manually checking a numerical value of a pressure gauge after the railway freight vehicle is stopped. However, during the operation of the railway freight vehicle, the pressure of the brake cylinder pressure pipe cannot be confirmed in a manual checking mode, and potential safety hazards exist.
Disclosure of Invention
On the basis, the brake cylinder monitoring device and system and the 25t axle weight aluminum alloy coal hopper car are needed to be provided aiming at the problem that the pressure of a brake cylinder pressure pipe cannot be confirmed in a manual checking mode in the running process of a railway freight car and potential safety hazards exist.
The utility model provides a brake cylinder monitoring devices, is applied to 25t axle load aluminum alloy coal hopper car, 25t axle load aluminum alloy coal hopper car includes headwall riser, backup pad and bottom plate, brake cylinder monitoring devices includes:
the strain type pressure sensor is arranged in an installation space formed by surrounding the end wall vertical plate, the supporting plate and the bottom plate, is communicated with a brake cylinder pressure pipe of the 25t axle weight aluminum alloy coal hopper car, and is used for detecting the pressure value of the brake cylinder pressure pipe;
the pressure switch is arranged in the installation space, is communicated with a brake cylinder pressure pipe of the 25t axle weight aluminum alloy coal hopper car, and is used for determining whether to output a trigger signal according to the pressure value of the brake cylinder pressure pipe; and
and the control device is respectively electrically connected with the strain type pressure sensor and the pressure switch, and when the control device receives the trigger signal, the control device enters a working state from a sleep state, detects the current pressure value in the brake cylinder pressure pipe through the strain type pressure sensor and outputs the current pressure value.
In one embodiment, the bottom plate is fixedly connected to one end of the supporting plate and the end wall vertical plate, respectively, the other end of the supporting plate is fixedly connected to the end wall vertical plate, and the end wall vertical plate, the supporting plate and the bottom plate surround to form the installation space.
In one embodiment, when the pressure value of the brake cylinder pressure pipe is gradually increased and reaches a first pressure threshold, the pressure switch outputs the trigger signal to the control device;
when the pressure value of the brake cylinder pressure pipe is gradually reduced and reaches a second pressure threshold value, the pressure switch outputs the trigger signal to the control device;
wherein the first pressure threshold is greater than the second pressure threshold.
In one embodiment, after the control device outputs the current pressure value, the control device automatically switches from the working state to the sleep state.
In one embodiment, the brake cylinder monitoring apparatus further includes:
the LoRa communication device, with the control device communication is connected, the LoRa communication device be used for with set up in the on-vehicle gateway communication connection of 25t axle load aluminum alloy coal hopper car.
In one embodiment, the brake cylinder monitoring apparatus further includes:
and the power supply device is electrically connected with the strain type pressure sensor, the control device and the LoRa communication device respectively.
In one embodiment, the brake cylinder pressure pipe is provided with a three-way ball valve, and the strain gauge pressure sensor is communicated with the three-way ball valve through a corrugated pipe.
A brake cylinder monitoring system comprising:
the brake cylinder monitoring device according to any one of the preceding embodiments, wherein the brake cylinder monitoring device is arranged on the 25t axle weight aluminum alloy coal hopper car; and
and the vehicle-mounted gateway is arranged on the 25t axle weight aluminum alloy coal hopper car and is in communication connection with the control device.
In one embodiment, the brake cylinder monitoring system further includes:
and the upper computer is in communication connection with the vehicle-mounted gateway and is used for determining whether the pressure in the brake cylinder pressure pipe is normal or not according to the current pressure value.
In one embodiment, when the upper computer determines that the pressure in the brake cylinder pressure pipe is abnormal, the upper computer gives an alarm through an indicator light or a warning window.
A 25t axle weight aluminum alloy coal hopper car comprising the brake cylinder monitoring devices of any one of the above embodiments, the 25t axle weight aluminum alloy coal hopper car comprising a plurality of brake cylinder pressure tubes, and each of the brake cylinder pressure tubes corresponds to one of the brake cylinder monitoring devices.
Compared with the prior art, the brake cylinder monitoring device, the brake cylinder monitoring system and the 25t axle weight aluminum alloy coal hopper car have the advantages that the strain type pressure sensors are arranged in the installation space formed by the surrounding of the vertical end wall plates, the supporting plate and the bottom plate, and are communicated with the brake cylinder pressure pipes of the 25t axle weight aluminum alloy coal hopper car. And arranging a pressure switch in the installation space, and determining whether to output a trigger signal according to the pressure value of the brake cylinder pressure pipe through the pressure switch. When the control device receives the trigger signal, the control device enters a working state from a sleep state, and simultaneously detects the current pressure value in the brake cylinder pressure pipe through the strain type pressure sensor and outputs the current pressure value. Therefore, when the 25t axle load aluminum alloy coal hopper car runs, the pressure in the brake cylinder pressure pipe can be detected in real time, and the running safety of the hopper car is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a brake cylinder monitoring device according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating an application of a brake cylinder monitoring device according to an embodiment of the present application;
FIG. 3 is a schematic block circuit diagram of a brake cylinder monitoring device according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an application of a brake cylinder monitoring device according to another embodiment of the present application;
FIG. 5 is a block circuit diagram of a brake cylinder monitoring system according to an embodiment of the present application;
FIG. 6 is a block circuit diagram of a 25t axle weight aluminum alloy coal hopper car according to an embodiment of the present application.
Description of reference numerals:
10. a brake cylinder monitoring device; 100. a strain gauge pressure sensor; 101. an end wall vertical plate; 102. a support plate; 103. a base plate; 104. an installation space; 110. a brake cylinder pressure pipe; 111. a three-way ball valve; 120. a bellows; 20. 25t of axle weight aluminum alloy coal hopper car; 200. a pressure switch; 30. a brake cylinder monitoring system; 300. a control device; 400. a LoRa communication device; 310. a vehicle-mounted gateway; 500. a power supply device; 600. and (4) an upper computer.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
The numbering of the components as such, e.g., "first", "second", etc., is used herein for the purpose of describing the objects only, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, an embodiment of the present application provides a brake cylinder monitoring device 10 for use in a 25t axle weight aluminum alloy coal hopper car 20. In one embodiment, the brake cylinder monitoring apparatus 10 may also be applied to other railway freight cars. The 25t axle weight aluminum alloy coal hopper wagon 20 comprises an end wall vertical plate 101, a supporting plate 102 and a bottom plate 103.
The brake cylinder monitoring device 10 includes: a strain gauge pressure sensor 100, a pressure switch 200, and a control device 300. The strain gauge pressure sensor 100 is disposed in an installation space 104 formed by the end wall riser 101, the support plate 102 and the bottom plate 103. The strain gauge pressure sensor 100 is in communication with a brake cylinder pressure tube 110 of the 25t axle weight aluminum alloy coal hopper car 20. The pressure switch 200 is disposed in the installation space 104. The pressure switch 200 is communicated with the brake cylinder pressure pipe 110 of the 25t axle weight aluminum alloy coal hopper car 20. The pressure switch 200 is used to determine whether to output a trigger signal according to the pressure value of the brake cylinder pressure pipe 110. The control device 300 is electrically connected to the strain gauge pressure sensor 100 and the pressure switch 200, respectively. When the control device 300 receives the trigger signal, the control device 300 detects a current pressure value within the brake cylinder pressure pipe 110 by the strain gauge pressure sensor 100 and outputs the current pressure value.
In one embodiment, the end wall riser 101 may be made of aluminum alloy. Similarly, the material of the bottom plate 103 may be aluminum alloy. In one embodiment, the material of the supporting plate 102 may be an aluminum alloy. Other materials, such as steel, may be used for the support plate 102.
In one embodiment, the end wall riser 101, the support plate 102, and the base plate 103 surround to form an installation space 104. Specifically, the supporting plate 102 is fixedly connected to the end wall vertical plate 101 and the bottom plate 103, the bottom plate 103 is fixedly connected to the end wall vertical plate 101, and the end wall vertical plate 101, the supporting plate 102 and the bottom plate 103 surround and form the installation space 104. Wherein, the installation space 104 is located at one side of the support plate 102 close to the end wall vertical plate 101. In one embodiment, the cross-sectional profile of the installation space 104 in the direction of travel of the 25t axle weight aluminum alloy coal hopper car 20 may be triangular. Therefore, the supporting capability of the supporting plate 102 can be improved, and the stability of the overall structure of the 25t axle weight aluminum alloy coal hopper car 20 can be improved.
In one embodiment, the manner in which the strain gauge pressure sensor 100 is disposed in the installation space 104 is not limited as long as the strain gauge pressure sensor 100 is secured in the installation space 104. In one embodiment, the strain gauge pressure sensor 100 is disposed in the installation space 104 and is fixedly connected to the bottom plate 103 by bolts. In one embodiment, the strain gauge pressure sensor 100 may also be fixedly connected to the base plate 103 by a snap-fit manner.
In one embodiment, the strain gauge pressure sensor 100 may be a resistive strain gauge pressure sensor. The resistance strain type pressure sensor has the advantages of small volume, light weight, high precision, adaptability, high temperature, low pressure and the like. The resistance strain type pressure sensor is adopted and matched with a diffusion type strain measurement method, large strain is diffused, and good linearity is guaranteed, so that the resistance strain type pressure sensor is more finely installed and stable in measurement.
It is understood that the manner of communicating the strain gauge pressure sensor 100 with the brake cylinder pressure pipe 110 of the 25t axle weight aluminum alloy coal hopper car 20 is not limited as long as the strain gauge pressure sensor 100 is in communication with the brake cylinder pressure pipe 110. In one embodiment, the strain gauge pressure sensor 100 may communicate with the brake cylinder pressure tube 110 through a hose and a three-way valve. The strain gauge pressure sensor 100 may also be in direct communication with the brake cylinder pressure tube 110 through a three-way valve. This may enable the strain gauge pressure sensor 100 to detect pressure changes within the brake cylinder pressure tube 110 in real time.
It is to be understood that the manner in which the pressure switch 200 communicates with the brake cylinder pressure tube 110 of the 25t axle weight aluminum alloy coal hopper car 20 is not limited, so long as communication between the pressure switch 200 and the brake cylinder pressure tube 110 is ensured. In one embodiment, the pressure switch 200 may communicate with the brake cylinder pressure tube 110 through a hose and a three-way valve. The pressure switch 200 can also be connected directly to the brake cylinder pressure line 110 via a three-way valve. This allows the pressure switch 200 to detect pressure changes within the brake cylinder pressure pipe 110 in real time.
In one embodiment, the pressure switch 200 is used to determine whether to output a trigger signal based on the pressure value of the brake cylinder pressure pipe 110. Specifically, when the pressure value of the brake cylinder pressure pipe 110 gradually increases and reaches a first pressure threshold value, the pressure switch 200 outputs the trigger signal to the control device 300. That is, when the pressure value of the brake cylinder pressure pipe 110 gradually increases to be equal to the first pressure threshold value, the pressure switch 200 outputs the trigger signal to the control device 300. When the control device 300 receives the trigger signal, the control device 300 is awakened. At this time, the control device 300 detects a current pressure value in the brake cylinder pressure pipe 110 by the strain gauge pressure sensor 100 and outputs the current pressure value. And when the control device 300 outputs the current pressure value, the control device 300 automatically enters a sleep state. In one embodiment, the specific value of the first pressure threshold can be set according to the actual requirement of the 25t axle weight aluminum alloy coal hopper car 20, and is not limited to the specific value.
When the pressure value of brake cylinder pressure pipe 110 decreases gradually and reaches a second pressure threshold value, pressure switch 200 also outputs the trigger signal to control device 300. That is, when the pressure value of the brake cylinder pressure pipe 110 is gradually decreased to be equal to the second pressure threshold value, the pressure switch 200 outputs the trigger signal to the control device 300. When the control device 300 receives the trigger signal, the control device 300 is awakened. At this time, the control device 300 detects a current pressure value in the brake cylinder pressure pipe 110 by the strain gauge pressure sensor 100 and outputs the current pressure value. And when the control device 300 outputs the current pressure value, the control device 300 automatically enters a sleep state. Therefore, the real-time detection of the pressure in the brake cylinder pressure pipe 110 can be completed, and the safety of the hopper car operation is improved.
In one embodiment, the specific value of the second pressure threshold can be set according to the actual requirement of the 25t axle weight aluminum alloy coal hopper car 20, and is not limited herein. In one embodiment, the first pressure threshold is greater than the second pressure threshold. That is, the first pressure threshold may be an upper alarm value and the second pressure threshold may be a lower alarm value.
It is to be understood that the manner in which the control device 300 is electrically connected to the strain gauge pressure sensor 100 and the pressure switch 200, respectively, is not limited as long as it is ensured that the strain gauge pressure sensor 100 can transmit the detected pressure value to the control device 300. In one embodiment, the control device 300 may be electrically connected to the strain gauge pressure sensor 100 through a wire. Specifically, the material of the conductive wire is not limited, and for example, the material of the conductive wire may be copper or aluminum. In one embodiment, the control device 300 may also be directly electrically connected to the strain gauge pressure sensor 100.
It is to be understood that the specific structure of the control device 300 is not limited as long as it has a function of detecting the current pressure value within the brake cylinder pressure pipe 110 by the strain gauge pressure sensor 100 and outputting the current pressure value. In one embodiment, the control device 300 may be an MCU (micro control unit). The control device 300 may also be an integrated control chip.
In one embodiment, the control device 300 wakes up when the control device 300 is receiving the trigger signal. I.e. the control device 300 enters the active state from the sleep state. At this time, the control device 300 may detect a current pressure value within the brake cylinder pressure pipe 110 by the strain gauge pressure sensor 100 and output the current pressure value. And when the control device 300 outputs the current pressure value, the control device 300 automatically enters a sleep state. This reduces the overall power consumption of the brake cylinder monitoring device 10.
The control device 300 can detect the current pressure value in the brake cylinder pressure pipe 110 through the logic, and outputs the current pressure value to the upper computer, so that the upper computer determines whether to alarm the pressure value in the brake cylinder pressure pipe 110 according to the current pressure value, and the operation safety of the 25t axle weight aluminum alloy coal hopper car 20 is improved.
In this embodiment, the strain gauge pressure sensor 100 is disposed in an installation space 104 formed by surrounding the end wall vertical plate 101, the supporting plate 102 and the bottom plate 103, and the strain gauge pressure sensor 100 is communicated with a brake cylinder pressure pipe 110 of the 25t axle weight aluminum alloy coal hopper car 20. The pressure switch 200 is disposed in the installation space 104, and whether a trigger signal is output is determined by the pressure switch 200 according to a pressure value of the brake cylinder. When the control device 300 receives the trigger signal, the control device 300 enters an operating state from a sleep state, and the control device 300 detects a current pressure value in the brake cylinder pressure pipe 110 through the strain gauge pressure sensor 100 and outputs the current pressure value. Therefore, when the 25t axle weight aluminum alloy coal hopper car 10 runs, the pressure in the brake cylinder pressure pipe 110 can be detected in real time, and the running safety of the hopper car is improved.
Referring to fig. 2, in one embodiment, the bottom plate 103 is fixedly connected to one end of the supporting plate 102 and the end wall vertical plate 101, respectively. The other end of the supporting plate 102 is fixedly connected with the end wall vertical plate 101. The end wall riser 101, the support plate 102 and the bottom plate 103 surround and form the installation space 104. In one embodiment, the end wall riser 101, the support plate 102, and the base plate 103 can be made of the same material.
It can be understood that the manner of fixedly connecting the bottom plate 103 and one end of the supporting plate 102 is not limited, as long as the bottom plate 103 and the supporting plate 102 are fixed. In one embodiment, one end of the supporting plate 102 may be fixedly connected to the base plate 103 by a bolt. In one embodiment, one end of the supporting plate 102 may also be fixedly connected to the bottom plate 103 by a rivet or a snap.
It can be understood that the fixed connection manner of the bottom plate 103 and the end wall vertical plate 101 is not limited, as long as the bottom plate 103 and the end wall vertical plate 101 are fixed to each other. In one embodiment, the end wall riser 101 can be fixedly attached to the base plate 103 by bolts. In one embodiment, the end wall riser 101 can also be fixedly attached to the base plate 103 by rivets or snaps.
It can be understood that the other end of the supporting plate 102 is fixedly connected to the end wall vertical plate 101 in any way, as long as the supporting plate 102 is fixed to the end wall vertical plate 101. In one embodiment, the other end of the support plate 102 may be fixedly connected to the end wall riser 101 by bolts. In one embodiment, the other end of the support plate 102 can also be fixedly connected to the end wall plate 101 by rivets or snaps. In one embodiment, the support plate 102 and the end wall riser 101 can be integrally formed.
In this embodiment, the supporting plate 102 is fixedly connected to the end wall vertical plate 101 and the bottom plate 103, respectively, the bottom plate 103 is fixedly connected to the end wall vertical plate 101, and the end wall vertical plate 101, the supporting plate 102 and the bottom plate 103 surround and form the installation space 104. Wherein, the installation space 104 is located at one side of the support plate 102 close to the end wall vertical plate 101. In one embodiment, the cross-sectional profile of the installation space 104 in the direction of travel of the 25t axle weight aluminum alloy coal hopper car 20 may be triangular. Therefore, the supporting capability of the supporting plate 102 can be improved, and the stability of the overall structure of the 25t axle weight aluminum alloy coal hopper car 20 can be improved.
Referring to fig. 3, in an embodiment, the brake cylinder monitoring device 10 further includes: the LoRa communication device 400. The LoRa communication device 400 is communicatively coupled to the control device 300. The LoRa communication device 400 is used for being in communication connection with the vehicle-mounted gateway 310 arranged on the 25t axle weight aluminum alloy coal hopper car 20.
In one embodiment, the LoRa communication device 400 may be replaced with other types of communication devices (e.g., 4G/5G wireless communication module, WiFi/bluetooth/ANT/ZigBee wireless communication module, etc.). When the control device 300 detects the current pressure value in the brake cylinder pressure pipe 110 through the strain gauge pressure sensor 100, the current pressure value can be sent to the on-board gateway 310 through the LoRa communication device 400, so that the on-board gateway 310 uploads the current pressure value to a monitoring platform (such as an upper computer). In this embodiment, the control device 300 uploads the current pressure value to the vehicle-mounted gateway 310 through the LoRa communication device 400, and the overall power consumption can be further reduced by adopting the communication mode of the LoRa communication device 400 under the condition that the transmission distance is constant.
In one embodiment, the brake cylinder monitoring device 10 further includes: the power supply device 500. The power supply device 500 is electrically connected to the strain gauge pressure sensor 100, the control device 300, and the LoRa communication device 400, respectively. It is to be understood that the specific structure of the power supply device 500 is not limited as long as it has a function of supplying power to the strain gauge pressure sensor 100, the control device 300, and the LoRa communication device 400. In one embodiment, the power supply device 500 may be a dry battery. The power supply device 500 may also be a battery.
Referring to fig. 4, in one embodiment, the brake cylinder pressure pipe 110 is provided with a three-way ball valve 111, and the strain gauge pressure sensor 100 is communicated with the three-way ball valve 111 through a bellows 120. In one embodiment, the three-way ball valve 111 may be mounted on the brake cylinder pressure tube 110. One end of the three-way ball valve 111 is communicated with one end of the bellows 120. The other end of the bellows 120 communicates with the strain gauge pressure sensor 100. Therefore, the three-way ball valve 111 and the corrugated pipe 120 are matched to lead a pressure measuring pipeline to the strain type pressure sensor 100, so that the pressure of the brake cylinder pressure pipe 110 is measured through the strain type pressure sensor 100.
In one embodiment, a three-way valve may be further disposed on the bellows 120. The pressure switch 200 communicates with the bellows 120 through the three-way valve. In this way, the three-way ball valve 111, the bellows 120 and the three-way valve cooperate to lead the pressure measuring circuit to the pressure switch 200, so that whether to output the trigger signal to the control device 300 is determined by the pressure switch 200 according to the pressure value of the brake cylinder pressure pipe 110. Thus, the control device 300 can be awakened by outputting the trigger signal through the pressure switch 200.
Referring to fig. 5, another embodiment of the present application provides a brake cylinder monitoring system 30. The brake cylinder monitoring system 30 comprises: the brake cylinder monitoring device 10 and the vehicle-mounted gateway 310 according to any one of the above embodiments. The brake cylinder monitoring device 10 is arranged on the 25t axle weight aluminum alloy coal hopper car 20. The vehicle-mounted gateway 310 is arranged on the 25t axle weight aluminum alloy coal hopper car 20. The onboard gateway 310 is communicatively connected to the control device 300.
In one embodiment, the vehicle gateway 310 may be a conventional vehicle gateway with information processing function. In one embodiment, the manner of installing the vehicle-mounted gateway 310 on the 25t axle weight aluminum alloy coal hopper car 20 is not limited, as long as the vehicle-mounted gateway 310 is fixed on the 25t axle weight aluminum alloy coal hopper car 20. In one embodiment, the onboard gateway 310 may be screwed to the 25t axle weight aluminum alloy coal hopper car 20. The vehicle-mounted gateway 310 can also be fastened to the 25t axle weight aluminum alloy coal hopper car 20 by a snap. In one embodiment, the onboard gateway 310 may be communicatively coupled to the control device 300 via an LoRa communication device 400. By adopting the communication mode realized by the LoRa communication device 400, the overall power consumption of the wagon top cover monitoring system 30 can be further reduced under the condition of a certain transmission distance.
In the brake cylinder monitoring system 30 of this embodiment, by the cooperation of the vehicle-mounted gateway 310 and the brake cylinder monitoring device 10, the pressure of the brake cylinder pressure pipe 110 can be detected in real time in the operation process of the 25t axle weight aluminum alloy coal hopper car 20, so that the operation safety of the 25t axle weight aluminum alloy coal hopper car 20 is improved.
In one embodiment, the brake cylinder monitoring system 30 further comprises: a battery management subsystem. The battery management subsystem is used for uniformly managing the power supply of the power supply device 500 and distributing energy according to the power consumption requirements of the strain type pressure sensor 100, the control device 300 and the LoRa communication device 400, so that the brake cylinder monitoring system 30 achieves the purpose of low power consumption and the service life of the system is prolonged.
In one embodiment, the brake cylinder monitoring system 30 further comprises: and an upper computer 600. The upper computer 600 is in communication connection with the vehicle-mounted gateway 310. The upper computer 600 is used for determining whether the pressure in the brake cylinder pressure pipe 110 is normal or not according to the current pressure value. In one embodiment, the communication mode between the upper computer 600 and the vehicle-mounted gateway 310 is not limited, as long as the communication between the upper computer 600 and the vehicle-mounted gateway 310 is ensured. In one embodiment, the upper computer 600 and the vehicle-mounted gateway 310 may communicate with each other in a 4G/5G communication manner. The upper computer 600 and the vehicle-mounted gateway 310 can also adopt other communication modes to realize communication, such as WiFi, Bluetooth and the like.
The upper computer 600 is used for determining whether the pressure in the brake cylinder pressure pipe 110 is normal or not according to the current pressure value. Specifically, when the control device 300 is awakened, the control device 300 may detect a current pressure value within the brake cylinder pressure pipe 110 through the strain gauge pressure sensor 100 and output the current pressure value to the upper computer 600. When the upper computer 600 determines that the pressure in the brake cylinder pressure pipe 110 is in an overpressure or underpressure state according to the current pressure value, the upper computer 600 gives an alarm, so that an operator is prompted that the pressure in the brake cylinder pressure pipe 110 is in the overpressure or underpressure state.
In one embodiment, the manner of the alarm of the upper computer 600 is not limited, for example, the upper computer 600 may alarm through an indicator light. The upper computer 600 can also pop up a warning window through the display platform to give an alarm. In this embodiment, the upper computer 600 is matched with the vehicle-mounted gateway 310, so that the pressure state in the brake cylinder pressure pipe 110 can be detected in real time, and the operation safety of the 25t axle weight aluminum alloy coal hopper car 20 is improved.
Referring to FIG. 6, another embodiment of the present application provides a 25t axle weight aluminum alloy coal hopper car 20. The 25t axle weight aluminum alloy coal hopper wagon 20 comprises the brake cylinder monitoring device 10 of any one of the embodiments described above. The 25t axle weight aluminum alloy coal hopper car 20 comprises a plurality of brake cylinder pressure pipes 110, and each brake cylinder pressure pipe 110 corresponds to one brake cylinder monitoring device 10. In the 25t axle weight aluminum alloy coal hopper wagon 20 of this embodiment, the brake cylinder monitoring device 10 detects the pressure in the brake cylinder pressure pipe 110 in real time, so as to improve the safety of the 25t axle weight aluminum alloy coal hopper wagon 20 in operation.
In summary, the present application will set up strain gauge pressure sensor 100 in headwall riser 101, backup pad 102 with bottom plate 103 is around forming in the installation space 104, and will strain gauge pressure sensor 100 with brake cylinder pressure pipe 110 intercommunication of 25t axle weight aluminum alloy coal hopper car 20. The pressure switch 200 is disposed in the installation space 104, and whether a trigger signal is output is determined by the pressure switch 200 according to a pressure value of the brake cylinder. When the control device 300 receives the trigger signal, the control device 300 enters an operating state from a sleep state, and the control device 300 detects a current pressure value in the brake cylinder pressure pipe 110 through the strain gauge pressure sensor 100 and outputs the current pressure value. Therefore, when the 25t axle weight aluminum alloy coal hopper car 10 runs, the pressure in the brake cylinder pressure pipe 110 can be detected in real time, and the running safety of the hopper car is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A brake cylinder monitoring device, characterized in that, be applied to 25t axle load aluminum alloy coal hopper car (20), 25t axle load aluminum alloy coal hopper car (20) includes headwall riser (101), backup pad (102) and bottom plate (103), brake cylinder monitoring device includes:
the strain type pressure sensor (100) is arranged in an installation space (104) formed by surrounding the end wall vertical plate (101), the supporting plate (102) and the bottom plate (103) and is communicated with a brake cylinder pressure pipe (110) of the 25t axle weight aluminum alloy coal hopper car (20); the brake cylinder pressure pipe (110) is provided with a three-way ball valve (111), and the strain type pressure sensor (100) is communicated with the three-way ball valve (111);
the pressure switch (200) is arranged in the installation space (104), is communicated with a brake cylinder pressure pipe (110) of the 25t axle weight aluminum alloy coal hopper car (20), and is used for determining whether to output a trigger signal according to the pressure value of the brake cylinder pressure pipe (110); and
and the control device (300) is respectively electrically connected with the strain type pressure sensor (100) and the pressure switch (200), when the control device (300) receives the trigger signal, the control device (300) enters a working state from a sleep state, detects the current pressure value in the brake cylinder pressure pipe (110) through the strain type pressure sensor (100), and outputs the current pressure value.
2. Brake cylinder monitoring device according to claim 1, characterized in that the bottom plate (103) is fixedly connected to one end of the supporting plate (102) and the end wall riser (101), respectively, that the other end of the supporting plate (102) is fixedly connected to the end wall riser (101), and that the end wall riser (101), the supporting plate (102) and the bottom plate (103) enclose the installation space (104).
3. Brake cylinder monitoring device according to claim 1, characterized in that the pressure switch (200) outputs the triggering signal to the control means (300) when the pressure value of the brake cylinder pressure pipe (110) increases gradually and reaches a first pressure threshold value;
-when the pressure value of the brake cylinder pressure pipe (110) decreases gradually and reaches a second pressure threshold, the pressure switch (200) outputs the triggering signal to the control means (300);
wherein the first pressure threshold is greater than the second pressure threshold.
4. Brake cylinder monitoring device according to claim 1, characterized in that the control means (300) automatically switches from an operating state to a sleep state after the control means (300) has outputted the current pressure value.
5. The brake cylinder monitoring arrangement according to claim 1, further comprising:
the LoRa communication device (400) is in communication connection with the control device (300), and the LoRa communication device (400) is used for being in communication connection with the vehicle-mounted gateway (310) arranged on the 25t axle load aluminum alloy coal hopper car (20).
6. The brake cylinder monitoring arrangement according to claim 5, further comprising:
a power supply device (500) electrically connected to the strain gauge pressure sensor (100), the control device (300), and the LoRa communication device (400), respectively.
7. Brake cylinder monitoring device according to any one of claims 1 to 6, characterized in that said strain-gauge pressure sensor (100) communicates with said three-way ball valve (111) through a bellows (120).
8. A brake cylinder monitoring system, comprising:
brake cylinder monitoring device according to any one of claims 1 to 7, which is arranged on the 25t axle-weight aluminium alloy coal hopper car (20); and
and the vehicle-mounted gateway (310) is arranged on the 25t axle weight aluminum alloy coal hopper car (20) and is in communication connection with the control device (300).
9. The brake cylinder monitoring system according to claim 8, further comprising:
and the upper computer (600) is in communication connection with the vehicle-mounted gateway (310) and is used for determining whether the pressure in the brake cylinder pressure pipe (110) is normal or not according to the current pressure value.
10. Brake cylinder monitoring system according to claim 9, characterized in that the upper computer (600) gives an alarm via an indicator light or a warning window when the upper computer (600) determines that the pressure in the brake cylinder pressure pipe (110) is abnormal.
11. A 25t axle weight aluminum alloy coal hopper car (20) comprising a brake cylinder monitoring device as claimed in any one of claims 1 to 7, said 25t axle weight aluminum alloy coal hopper car (20) comprising a plurality of brake cylinder pressure tubes (110), and one brake cylinder monitoring device per brake cylinder pressure tube (110).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011476474.5A CN112706742B (en) | 2020-12-15 | 2020-12-15 | Brake cylinder monitoring device and system and 25t axle load aluminum alloy coal hopper car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011476474.5A CN112706742B (en) | 2020-12-15 | 2020-12-15 | Brake cylinder monitoring device and system and 25t axle load aluminum alloy coal hopper car |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06239221A (en) * | 1993-02-18 | 1994-08-30 | Aisin Seiki Co Ltd | Liquid pressure supply device |
| DE19637484A1 (en) * | 1996-09-14 | 1998-03-19 | Wabco Gmbh | Two-line trailer brake system |
| DE102007052286B4 (en) * | 2007-11-02 | 2015-06-11 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Valve arrangement for controlling a brake system of a parking brake system of a rail vehicle |
| CN201566622U (en) * | 2009-12-19 | 2010-09-01 | 太原轨道交通装备有限责任公司 | 80t level coal hopper wagon |
| CN101786450A (en) * | 2010-02-26 | 2010-07-28 | 吉林大学 | Vehicle brake pipeline pressure monitor and early warning system for |
| RU2540212C1 (en) * | 2013-07-09 | 2015-02-10 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" | Acs device for train pneumoelectric brakes and method of its application |
| CN207131396U (en) * | 2017-07-24 | 2018-03-23 | 中国石油集团渤海钻探工程有限公司 | A kind of underground low power consumpting controling circuit waken up based on pressure signal |
| CN210083193U (en) * | 2019-05-22 | 2020-02-18 | 中国铁路总公司 | Railway freight car vehicle-mounted brake pressure monitoring device |
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