Eaton auxiliary brake water loss alarm system

Abstract

The utility model relates to the technical field of alarm system, and disclose a kind of Eaton auxiliary brake water break alarm system, including first waterway sensing device, for detecting the water flow state in cooling waterway;Pressure switch, install in the air path of brake system, for detecting whether brake is in working condition;Sound-light alarm, with the relay connection, for sending alarm signal when detecting water break or water pressure deficiency;The utility model detects the water flow state of cooling waterway in real time by first waterway sensing device, diffusion silicon pressure sensor is formed liquid level and pressure double detection mechanism, simultaneously, pressure switch only starts alarm system when brake air path pressure reaches set threshold value, avoid false alarm interference under non-working state, ensure that brake works when cooling anomaly can trigger sound-light alarm in time, force operator to promptly investigate fault, from source block the problem such as dynamic friction disc crack, brake failure caused by insufficient cooling.

Description

Technical Field

[0001] This utility model relates to the field of alarm system technology, and in particular to the Eaton auxiliary brake water cut-off alarm system. Background Technology

[0002] Eaton brakes consist of three main components: cylinder and piston, dynamic friction disc and static friction disc. Eaton brakes mostly use a water-cooled disc design for effective heat dissipation, making them suitable for high-power equipment. The special friction materials and piston design improve the braking torque and controllability.

[0003] The main drawbacks and problems of existing Eaton auxiliary brakes are: 1. High environmental requirements: The cooling system has strict requirements on water quality and quantity. Poor water quality or insufficient water quantity will seriously affect the heat dissipation effect and the service life of the stationary and moving discs; 2. Maintenance: The cooling system needs to be maintained and inspected regularly to ensure its normal operation; 3. The rated working pressure of Eaton brakes is 0.8 bar to 10.3 bar. The inlet and outlet of the cooling pipe of the cooling system are located at the 6 o'clock and 12 o'clock positions, respectively. The pressure of the cooling medium in this brake system is 4.0 bar (65 psi). However, the cooling capacity must meet the minimum cooling flow rate required for the rated thermal power of the brake. The minimum flow rate of water as coolant is 738 L / min (195 gA / min). If the water pressure and flow rate are less than this value, the moving friction disc is prone to cracking during operation, which will not only cause brake damage, but also endanger personal safety. In actual use, the cooling system often runs out of water because the operator forgets to turn on the cooling system switch, or the water pressure is low and the flow rate is small due to disrepair, pipe blockage, water pump aging, etc., which cannot meet the cooling needs of the braking system. This can lead to the Eaton auxiliary braking device overheating, damage to the moving and stationary discs, reduced or failed braking function, and even serious safety accidents. Utility Model Content

[0004] This invention proposes an Eaton auxiliary brake water shortage alarm system to solve the problems of existing Eaton auxiliary brakes having stringent requirements for the cooling system, requiring regular maintenance, and being prone to insufficient cooling due to human operation or equipment problems, which can lead to component damage, functional failure, or even safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an Eaton auxiliary brake water shortage alarm system, comprising: The first water path sensing device is used to detect the water flow status in the cooling water path; A pressure switch is installed in the air circuit of the braking system to detect whether the brakes are in operation. An audible and visual alarm, connected to the relay, is used to issue an alarm signal when a water outage or insufficient water pressure is detected. Relay; The power supply provides power to the entire alarm system. The control circuit connects the first water circuit sensing device, relay, audible and visual alarm, and pressure switch to realize logic control of the Eaton auxiliary brake water cut-off alarm system.

[0006] Preferably, the first water circuit sensing device is a float-type water level sensor or a flow sensor, which is installed at the inlet or inlet of the cooling water circuit.

[0007] Preferably, it also includes a diffused silicon pressure sensor for real-time monitoring of the pressure in the cooling water circuit and is connected to the control circuit.

[0008] Preferably, a convex pipe is connected to the cooling water line, and an electrically controlled valve is installed at the lower end of the convex pipe.

[0009] Preferably, it also includes a backup sensor, which includes a connected telescopic rod and a second water path sensor, for providing redundant detection when the first water path sensor fails, and the second water path sensor is installed inside the convex pipe.

[0010] Preferably, the pressure switch is located in the brake air circuit and closes only when the air supply pressure in the air circuit reaches a set threshold, so that the alarm system enters a standby state.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) This application can provide early warning and timely intervention for cooling abnormalities. The system avoids serious failures such as cracking of dynamic friction disc and burning of brake components caused by insufficient cooling, and reduces the replacement frequency of high-value core components. At the same time, the existence of backup sensors can avoid sudden equipment damage caused by failure of the main sensor, reduce the high cost of emergency repairs, and in the long run, significantly reduce the maintenance and replacement costs of Eaton brakes and reduce the overall operating cost.

[0012] (2) The water flow status of the cooling water circuit is monitored in real time by the first water circuit sensing device. Combined with the diffused silicon pressure sensor, a dual detection mechanism of liquid level and pressure is formed. At the same time, the pressure switch only activates the alarm system when the brake air circuit pressure reaches the set threshold, avoiding false alarm interference in non-working state. It ensures that abnormal cooling during brake operation can trigger the sound and light alarm in time, forcing the operator to troubleshoot the fault in time (such as turning on the circulating water pump and clearing the pipeline), blocking the problem of dynamic friction disc cracking and brake failure caused by insufficient cooling from the source, and avoiding equipment damage and personal safety accidents.

[0013] (3) By adding a backup sensing device and a structure that works with the convex pipe and the electric control valve, when the first water circuit sensing device fails, the control circuit can automatically trigger the electric control valve to open the convex pipe, and the telescopic rod will drive the second water circuit sensing device to extend into the water circuit for supplementary monitoring, forming a dual guarantee of main monitoring and backup redundancy. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a circuit block diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the first water channel sensing device, the convex tube, and the spare sensing element of this utility model. Figure 3 This is a schematic diagram of the structure of the spare sensing element of this utility model; Figure 4 This is a flowchart illustrating the process of this utility model.

[0016] In the diagram: 1. First water circuit sensing device; 2. Relay; 3. Power supply; 4. Audible and visual alarm; 5. Pressure switch; 6. Protruding tube; 7. Diffused silicon pressure sensor; 8. Electrically controlled valve; 9. Spare sensing element; 91. Telescopic rod; 92. Second water circuit sensing device. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-4 As shown, an Eaton auxiliary brake water shortage alarm system includes a first water circuit sensing device 1, a relay 2, a power supply 3, an audible and visual alarm 4, and a pressure switch 5. The first water circuit sensing device 1 is a float-type water level sensor or flow sensor, installed in the inlet or loop of the cooling water circuit, and is used to detect the water flow status in the cooling water circuit. The pressure switch 5 is located in the brake air circuit and closes only when the air supply pressure in the air circuit reaches a set threshold, so that the alarm system enters the standby state. The relay 2 is electrically connected to the first water circuit sensing device 1 and the audible and visual alarm 4. The audible and visual alarm 4 is connected to the relay 2 and is used to issue an alarm signal when water shortage or insufficient water pressure is detected. The power supply 3 supplies power to the entire alarm system. Secondly, it also includes a control circuit, which connects the first water circuit sensing device 1, relay 2, audible and visual alarm 4 and pressure switch 5 to realize logic control of the Eaton auxiliary brake water cut-off alarm system.

[0019] Based on the above, when the cooling system is short of water or the water pressure is too low, the components installed on the cooling pipes ( Figure 2 In the cooling pipe (a in the diagram), the first water circuit sensing device 1 automatically closes the alarm circuit relay 2 under the action of the buoyancy of the float, so that the alarm device starts to work. The audible and visual alarm 4 emits a light alarm and a voice alarm saying "Brake circulating water not turned on", prompting the operator to turn on the circulating water pump in time. If the alarm continues, the operation should be stopped immediately, the cooling system fault should be checked, the cause of the fault should be eliminated, and the mechanical damage and personal safety accidents caused by lack of water in Eaton brakes should be prevented in time.

[0020] To ensure the alarm only activates when the Eaton brakes are in operation, a pressure switch 5 was installed in the air supply line of the brake system to control the opening and closing of the alarm circuit. The pressure switch 5 will only close and the alarm will activate when air is supplied and the brakes are engaged.

[0021] In addition, see Figure 2 and Figure 3 As shown, it also includes a diffused silicon pressure sensor 7, which is used to monitor the pressure of the cooling water circuit in real time and is connected to the control circuit. The float level sensor and the diffused silicon pressure sensor 7 are connected to the main control module through a parallel circuit to form dual detection of liquid level and pressure. When the float gets stuck due to poor water quality, the diffused silicon pressure sensor 7 can detect the water pressure (triggering an alarm when it is below 1.5 bar). If the pressure sensor fails, the float can trigger an alarm through changes in liquid level, avoiding missed alarms due to the failure of a single sensor.

[0022] Additionally, see Figure 2 and Figure 3 As shown, a convex pipe 6 is connected to the cooling water line, and an electrically controlled valve 8 is installed at the lower end of the convex pipe 6.

[0023] It also includes a backup sensor 9, which includes a connected telescopic rod 91 and a second water path sensor 92, used to provide redundant detection when the first water path sensor 1 fails. The telescopic rod 91 is an electric telescopic rod, and the second water path sensor 92 is installed inside the convex pipe 6. The second water path sensor 92 is a float-type water level sensor or a flow sensor.

[0024] As described above, under normal operating conditions, the convex pipe 6 is closed, and the second water circuit sensor 92 does not contact the water in the water circuit. When the first water circuit sensor 1 malfunctions due to mechanical failure (such as damaged sensor probe or aging internal components), circuit failure (such as short circuit or signal transmission interruption), or external interference (such as water circuit impurities clogging the detection end), and is unable to continue performing water circuit monitoring tasks, the system will activate a backup emergency mechanism: First, the electronically controlled valve 8 is triggered by the preset control logic to open the convex pipe 6. Then, the telescopic rod 91 linked with the second water circuit sensor 92 will extend downwards according to the command, causing the second water circuit sensor 92 to move downwards synchronously until its detection end is completely immersed in the cooling water circuit. This allows the backup second water circuit sensor 92 to quickly take over the monitoring function of the first water circuit sensor 1, obtain real-time water circuit data, and promptly fill the functional gap in water circuit monitoring. This ensures that the entire cooling water circuit alarm system will not be interrupted due to the failure of a single sensor, and always maintains the effective monitoring and alarm capability for abnormal water circuit conditions, ensuring the safe and stable operation of the alarm system.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An Eaton auxiliary brake water shut-off alarm system characterized by, include: The first water circuit sensing device (1) is used to detect the water flow status in the cooling water circuit; Pressure switch (5) is installed in the air circuit of the brake system to detect whether the brake is in working condition; The audible and visual alarm (4) is connected to the relay (2) and is used to issue an alarm signal when a water outage or insufficient water pressure is detected. The relay (2) is electrically connected to the first water circuit sensing device (1); Power supply (3) supplies power to the entire alarm system; The control circuit connects the first water circuit sensing device (1), relay (2), audible and visual alarm (4) and pressure switch (5) to realize the logic control of Eaton auxiliary brake water cut-off alarm system.

2. The Eaton auxiliary brake water shut-off alarm system of claim 1, wherein: The first water circuit sensing device (1) is a float-type water level sensor or flow sensor, which is installed at the inlet or in the loop of the cooling water circuit.

3. The Eaton auxiliary brake water shut-off alarm system of claim 1, wherein: It also includes a diffused silicon pressure sensor (7) for real-time monitoring of the pressure of the cooling water circuit and is connected to the control circuit.

4. The Eaton auxiliary brake water shut-off alarm system of claim 1, wherein: A convex pipe (6) is connected to the cooling water line, and an electric control valve (8) is installed at the lower end of the convex pipe (6).

5. The Eaton auxiliary brake water shut-off alarm system of claim 4, wherein: It also includes a backup sensor (9), which includes a connected telescopic rod (91) and a second water path sensor (92) for providing redundant detection when the first water path sensor (1) fails, and the second water path sensor (92) is installed inside the convex tube (6).

6. The Eaton auxiliary brake water shut-off alarm system of claim 1, wherein: The pressure switch (5) is installed in the brake air circuit and closes only when the air supply pressure in the air circuit reaches the set threshold, so that the alarm system enters the standby state.

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