System for protecting equipment after bearing failure and mechanical equipment

Abstract

The utility model discloses a system for protecting equipment after bearing failure and mechanical equipment, the system is characterized in that a switch of a switch element is arranged in an equipment power supply system, and a coil of the switch element is connected with a detector and a power supply to form a power supply loop; the cutting element is arranged on the equipment driving shaft, the coil is arranged on one side of the cutting element and is opposite to the cutting element, the cutting element is installed on the equipment driving shaft, when a bearing fails, the equipment driving shaft can radially deflect while rotating, and when the radial deflection amplitude exceeds a preset distance value, the cutting element can cut the detector so that a power supply loop of the coil can be disconnected. And the equipment power supply system stops outputting electric energy, and the equipment starts shutdown protection. The system can realize shutdown protection of the mechanical equipment at the initial stage of bearing failure, improves the use safety of the mechanical equipment, reduces the frequency of shutdown inspection and maintenance of the equipment, effectively reduces the maintenance cost of the mechanical equipment, and has the advantages of low cost and convenience in installation.

Description

Technical Field

[0001] This utility model relates to the field of equipment protection, and in particular to a system for protecting equipment after bearing failure. It also relates to a mechanical device using the above system. Background Technology

[0002] Bearings are indispensable components in equipment, serving to support the journals or ends of rotating parts and ensuring smooth transmission between moving components. However, due to factors such as long-term operation, overload, poor lubrication, and improper installation, bearings may experience failures such as wear, cracks, and corrosion. If these failures are not detected and addressed promptly, they may lead to machine damage or even more serious safety accidents, causing significant economic losses to enterprises. Therefore, the development and application of bearing failure protection systems are of great practical significance. Utility Model Content

[0003] This utility model provides a system and mechanical equipment for protecting equipment after bearing failure. It can realize the shutdown protection of mechanical equipment in the early stage of bearing failure, improve the safety of mechanical equipment, reduce the frequency of equipment shutdown for inspection and maintenance, effectively reduce the maintenance cost of mechanical equipment, and has the advantages of low cost and easy installation.

[0004] According to one aspect of this utility model, a system for protecting equipment after bearing failure is provided, comprising a switching element, a detector, a power supply, and a cutting element. The switching element includes a switch and a coil. The switch is disposed in the equipment power supply system and is used to control the on / off state of the power output of the equipment power supply system. The coil is connected to the detector and the power supply to form a power supply circuit. The cutting element is mounted on the equipment drive shaft. The detector is located on one side of the cutting element and is disposed opposite to it. When the bearing has not failed, the power supply supplies power to the coil, the coil generates an electromagnetic field and drives the switch to close, and the equipment power supply system outputs power normally. After the bearing fails, the radial swing amplitude of the equipment drive shaft exceeds a preset distance value. The cutting element cuts the detector to disconnect the power supply circuit of the coil, thereby causing the switch to open and the equipment power supply system to stop outputting power.

[0005] Furthermore, the detector includes a fixed base, a probe, and a wire. The fixed base is provided with two electrical connectors, which are respectively connected to the coil and the power supply. The probe is mounted on the fixed base and extends toward the drive shaft of the device. The probe contains the wire, and the two ends of the wire are respectively connected to the two electrical connectors. The wire maintains a preset distance from the cutting element.

[0006] Furthermore, the diameter of the wire is 0.05mm to 0.2mm.

[0007] Furthermore, the probe is made of soft plastic or rubber.

[0008] Furthermore, the preset distance between the wire and the cutting element is 0.1mm to 0.5mm.

[0009] Furthermore, the cutting element includes a clamp and a blade, the clamp being fixedly mounted on the equipment drive shaft, and the blade being fixedly mounted on the clamp.

[0010] Furthermore, the blade is a disc blade, or the blade is a triangular blade, and multiple triangular blades are evenly spaced on the clamp.

[0011] Furthermore, both the clamp and the blade are made of hard, non-conductive material.

[0012] Furthermore, an indicator light is also provided on the power supply circuit of the coil. When the bearing is not in failure, the indicator light is on to indicate that the equipment is working normally. After the bearing fails, the indicator light is off to indicate that the equipment is shut down.

[0013] In addition, this utility model also provides a mechanical device that uses the system described above for protecting the device after bearing failure.

[0014] This utility model has the following beneficial effects:

[0015] This invention discloses a system for protecting equipment after bearing failure. It utilizes a switching element within the equipment's power supply system to control the flow of electrical energy from the controller. The switching element's coil is connected to a detector and power supply to form a power circuit. The coil is positioned opposite a cutting element, which is mounted on the equipment's drive shaft. When the bearing fails, the drive shaft rotates and experiences radial yaw. If this yaw exceeds a preset distance, the cutting element cuts the detector, disconnecting the power supply circuit and causing the switch to open. This stops the power supply system and activates the equipment's shutdown protection. This system provides shutdown protection for machinery in the early stages of bearing failure, improving equipment safety, reducing the frequency of downtime for inspection and maintenance, effectively lowering maintenance costs, and offering advantages such as low cost and easy installation.

[0016] In addition, the mechanical equipment of this utility model also has the above-mentioned advantages.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a system for protecting equipment after bearing failure according to a preferred embodiment of this application when the bearing has not failed.

[0020] Figure 2 This is a schematic diagram of the structure of a system for protecting equipment after bearing failure, according to a preferred embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the detector structure according to a preferred embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the cutting element according to a preferred embodiment of this application.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Switching element; 2. Detector; 3. Power supply; 4. Cutting element; 11. Switch; 12. Coil; 21. Mounting base; 22. Probe; 23. Wire; 41. Clamp; 42. Blade; 100. Equipment power supply system; 200. Equipment drive shaft; 300. Bearing. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Reference Figure 1 and Figure 2As shown, a preferred embodiment of this application provides a system for protecting equipment after bearing failure. The system includes a switching element 1, a detector 2, a power supply 3, and a cutting element 4. The switching element 1 includes a switch 11 and a coil 12. The switch 11 is installed in the equipment power supply system 100 and is used to control the on / off of the power output of the equipment power supply system 100. The coil 12 is connected to the detector 2 and the power supply 3 to form a power supply circuit. When the power supply circuit normally supplies power to the coil 12, the coil 12 generates an electromagnetic field to drive the switch 11 to close. At this time, the equipment power supply system 100 outputs power normally, and the mechanical equipment works normally. When the power supply circuit is disconnected, the coil 12 is de-energized, the electromagnetic field disappears, the switch 11 opens, the equipment power supply system 100 stops outputting power, and the mechanical equipment stops. The cutting element 4 is mounted on the equipment drive shaft 200 and rotates with the equipment drive shaft 200. The equipment drive shaft 200 is mounted on the bearing 300. The detector 2 is located on one side of the cutting element 4 and is set opposite to it. When the bearing 300 fails, the equipment drive shaft 200 will sway radially while rotating. The cutting element 4 will also sway radially while rotating. When the radial sway of the cutting element 4 exceeds the preset distance value, the cutting element 4 will cut the detector 2 on one side, causing the power supply circuit of the coil 12 to be disconnected, so that the coil 12 is de-energized, which in turn causes the switch 11 to open and the equipment power supply system 100 to stop outputting power, thereby realizing equipment shutdown protection.

[0027] It is understood that when the bearing 300 is not faulty, the power supply 3 normally supplies power to the coil 12, the coil 12 generates an electromagnetic field and drives the switch 11 to close, and the equipment power supply system 100 normally outputs electrical energy. However, after the bearing 300 fails, if the radial swing amplitude of the equipment drive shaft 200 exceeds a preset distance value, the cutting element 4 will cut the detector 2 to disconnect the power supply circuit of the coil 12, thereby causing the switch 11 to open, the equipment power supply system 100 to stop outputting electrical energy, and the equipment to activate the shutdown protection. Preferably, the switching element 1 is a remote control switch such as a relay or contactor. In addition, the power supply 3 is set according to the power requirements of the switching element 1, generally using a 24V DC power supply. If the selected switching element 1 operates on AC power, then the power supply 3 uses an AC power supply.

[0028] It is understood that the system for protecting equipment after bearing failure in this embodiment, by setting the switch 11 of the switching element 1 in the equipment power supply system 100 to control the on / off of power output by the controller, connects the coil 12 of the switching element 1 to the detector 2 and the power supply 3 to form a power supply circuit, and places the coil 12 on one side of the cutting element 4 and opposite it, and installs the cutting element 4 on the equipment drive shaft 200, when the bearing 300 fails, the equipment drive shaft 200 will radially wobble while rotating. As long as the radial wobble exceeds a preset distance value, the cutting element 4 will cut the detector 2, thereby disconnecting the power supply circuit of the coil 12, causing the switch 11 to open, the equipment power supply system 100 to stop outputting power, and the equipment to activate the shutdown protection. This system can achieve shutdown protection of mechanical equipment in the early stage of bearing 300 failure, improve the safety of mechanical equipment use, reduce the frequency of equipment shutdown for inspection and maintenance, effectively reduce the maintenance cost of mechanical equipment, and has the advantages of low cost and easy installation.

[0029] Among them, such as Figure 3 As shown, the detector 2 includes a mounting base 21, a probe 22, and a wire 23. The mounting base 21 has two electrical connectors connected to the coil 12 and the power supply 3, respectively. The probe 22 is mounted on the mounting base 21 and extends towards the device drive shaft 200. The wire 23 is housed within the probe 22, with both ends connected to the two electrical connectors. The wire 23, the coil 12, and the power supply 3 form a power supply circuit. A preset distance is maintained between the wire 23 and the cutting element 4. This preset distance can be set according to actual needs. It is understood that when the radial sway of the cutting element 4 exceeds this preset distance, the cutting element 4 will cut the wire 23, thus disconnecting the power supply circuit of the coil 12.

[0030] Optionally, the diameter of the wire 23 is 0.05mm to 0.2mm, preferably 0.1mm, a fine copper wire, to ensure that the cutting element 4 can quickly and reliably cut the wire 23. Additionally, the probe 22 is made of soft plastic or rubber, wherein the soft plastic can be PE, PP, PC, PU, ​​or other soft plastics, to ensure that the cutting element 4 can quickly and reliably cut the probe 22. Furthermore, preferably, the preset distance between the wire 23 and the cutting element 4 is 0.1mm to 0.5mm, more preferably 0.2mm, to ensure that the wire inside the detector 2 is cut off at the initial stage of bearing 300 failure, i.e., when the device drive shaft 200 exhibits slight radial oscillation. In other embodiments of this invention, the probe 22 can be omitted, and the wire 23 can be a wire wrapped with insulating material.

[0031] Additionally, the cutting element 4 includes a clamp 41 and a blade 42. The clamp 41 is fixedly mounted on the equipment drive shaft 200, and the blade 42 is fixedly mounted on the clamp 41. When the radial sway of the equipment drive shaft 200 exceeds a preset distance value, the blade 42 can cut the wire 23 in the probe 22. Figure 4 As shown, the blade 42 is a triangular blade, and multiple triangular blades are evenly spaced on the clamp 41. The number of blades 42 can be set as needed, for example, three, four, five, or six. Alternatively, the blade 42 can be a disc blade, ensuring timely cutting of the wire 23 even at low rotation speeds. Both the clamp 41 and the blade 42 are made of hard, non-conductive materials, such as ceramics, graphene, or fiberglass. In other embodiments, the blade 42 and the clamp 41 can be integrally formed.

[0032] Optionally, an indicator light is also provided on the power supply circuit of the coil 12. When the bearing 300 is not faulty, the indicator light is on to indicate that the equipment is working normally. After the bearing 300 fails, the indicator light is off to indicate that the equipment is stopped. Thus, the on or off status of the indicator light can remind the operator of the equipment's working status. In addition, the indicator light can also be used to determine whether the power supply circuit of the coil 12 has been cut off. An on light means that the power supply circuit is normal, and an off light means that the power supply circuit has been cut off.

[0033] In addition, another embodiment of the present invention provides a mechanical device, preferably employing the system described above for protecting the device after bearing failure.

[0034] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0035] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A system for protecting equipment after bearing failure, characterized in that, The device includes a switching element (1), a detector (2), a power supply (3), and a cutting element (4). The switching element (1) includes a switch (11) and a coil (12). The switch (11) is installed in the device power supply system (100) and is used to control the on / off state of the power output of the device power supply system (100). The coil (12) is connected to the detector (2) and the power supply (3) to form a power supply circuit. The cutting element (4) is installed on the device drive shaft (200). The detector (2) is located on one side of the cutting element (4) and is adjacent to it. In the configuration, when the bearing (300) is not damaged, the power supply (3) supplies power to the coil (12), the coil (12) generates an electromagnetic field and drives the switch (11) to close, and the equipment power supply system (100) outputs electrical energy normally; after the bearing (300) is damaged, the radial swing amplitude of the equipment drive shaft (200) exceeds the preset distance value, the cutting element (4) cuts the detector (2) to disconnect the power supply circuit of the coil (12), thereby causing the switch (11) to open, and the equipment power supply system (100) to stop outputting electrical energy.

2. The system for protecting equipment after bearing failure as described in claim 1, characterized in that, The detector (2) includes a mounting base (21), a probe (22), and a wire (23). The mounting base (21) is provided with two electrical connectors, which are respectively connected to the coil (12) and the power supply (3). The probe (22) is mounted on the mounting base (21) and extends toward the device drive shaft (200). The probe (22) is provided with the wire (23). The two ends of the wire (23) are respectively connected to the two electrical connectors. The wire (23) maintains a preset distance from the cutting element (4).

3. The system for protecting equipment after bearing failure as described in claim 2, characterized in that, The diameter of the conductor (23) is 0.05 mm to 0.2 mm.

4. The system for protecting equipment after bearing failure as described in claim 2, characterized in that, The probe (22) is made of soft plastic or rubber.

5. The system for protecting equipment after bearing failure as described in claim 2, characterized in that, The preset distance between the conductor (23) and the cutting element (4) is 0.1mm to 0.5mm.

6. The system for protecting equipment after bearing failure as described in claim 1, characterized in that, The cutting element (4) includes a clamp (41) and a blade (42). The clamp (41) is fixedly mounted on the equipment drive shaft (200), and the blade (42) is fixedly mounted on the clamp (41).

7. The system for protecting equipment after bearing failure as described in claim 6, characterized in that, The blade (42) is a disc blade, or the blade (42) is a triangular blade, and multiple triangular blades are evenly spaced on the clamp (41).

8. The system for protecting equipment after bearing failure as described in claim 6, characterized in that, Both the clamp (41) and the blade (42) are made of hard, non-conductive material.

9. The system for protecting equipment after bearing failure as described in claim 1, characterized in that, An indicator light is also provided on the power supply circuit of the coil (12). When the bearing (300) is not damaged, the indicator light is on to indicate that the equipment is working normally. After the bearing (300) is damaged, the indicator light is off to indicate that the equipment is shut down.

10. A mechanical device, characterized in that, The system described in any one of claims 1 to 9 is used to protect equipment after bearing failure.

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