Device for monitoring state of oil flow in pipeline of equipment lubricating system

Abstract

The utility model discloses a device for monitoring the state of oil flow in a pipeline of an equipment lubricating system, and belongs to the technical field of monitoring of mechanical equipment lubricating systems. Comprising a monitoring camera, a digital flowmeter, a signal transmission module, a feedback control module and an alarm, wherein the monitoring camera and the digital flowmeter are arranged on the pipe wall of an oil return pipeline; the signal transmission module is respectively connected with the monitoring camera and the digital flowmeter; the feedback control module is respectively connected with the signal transmission module and a lubricating system; and the lubricating system and the alarm are uniformly regulated and controlled by the feedback control module. According to the utility model, the oil flow condition of the oil return pipeline of the lubricating system can be monitored in real time, and the damage to equipment caused by factors such as unsmooth oil supply, oil cut-off or false alarm of the lubricating system and the production loss caused by unnecessary shutdown can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of monitoring lubrication systems of mechanical equipment, and in particular relates to a device for monitoring the internal oil flow state of a pipeline of a lubrication system of an equipment. Background Art

[0002] Many large-scale mechanical equipment use the oil station lubrication system for centralized lubrication, such as Figure 1 As shown, the execution device 6 and the lubrication system 7 are connected to the oil return pipe 2 through a parallel oil supply pipe 11. The lubrication system is provided with pressure interlock protection to achieve uninterrupted operation. At present, the lubrication system interlock protection measures usually adopt pressure interlock protection. The lubrication system is provided with oil pump pressure, post-filter pressure and oil supply pressure. The oil supply pressure adopts a pressure relay with an upper limit and a lower limit. When the oil supply pressure is lower than the lower limit, the standby oil pump starts, and when it is higher than the upper limit, the standby pump stops working, and uninterrupted oil supply is achieved within an oil supply pressure range.

[0003] However, the lubrication of many executive equipment, such as the spindle bearings of centrifugal casting machines, is guaranteed by the flow of lubricating oil provided by the lubrication system. The amount of lubricating oil must be controlled within a reasonable range. On the one hand, it is necessary to ensure that the appropriate amount of oil meets the lubrication requirements of the equipment, and on the other hand, it is necessary to avoid excessive oil that causes poor heat dissipation of the bearings, resulting in excessive bearing temperature and early failure and damage of the bearings. Usually, the oil supply pressure of the lubrication system only reflects the oil supply pressure of the thin oil station system. It cannot reflect whether there is oil supply and the amount of oil in the lubrication parts of the executive equipment, nor can it use other means to monitor the oil flow of the lubricating oil in the return oil pipeline of the equipment lubrication system. Therefore, the oil supply pressure of the lubrication system alone cannot guarantee effective lubrication for the executive equipment. Once the lubrication of the equipment fails and effective measures are not taken, it will cause equipment failure due to poor lubrication, causing serious losses to the equipment and production.

[0004] Therefore, a device for monitoring the oil flow status inside the pipeline of an equipment lubrication system is needed, which can monitor the oil flow status in the oil return pipeline in real time. Utility Model Content

[0005] The purpose of the utility model is to provide a device for monitoring the oil flow status inside the pipeline of the equipment lubrication system, which can monitor the oil flow status of the oil return pipeline of the lubrication system in real time, prevent the equipment from being damaged due to factors such as poor oil supply, oil cut-off or false alarm of the lubrication system, and prevent production losses caused by unnecessary downtime.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for monitoring the oil flow status inside a pipeline of an equipment lubrication system comprises a monitoring camera and a digital flow meter arranged on the wall of the oil return pipeline, a signal transmission module connected to the monitoring camera and the digital flow meter respectively, a feedback control module connected to the signal transmission module and the lubrication system respectively, and an alarm connected to the feedback control module, wherein the lubrication system and the alarm are uniformly regulated by the feedback control module.

[0008] A further improvement of the technical solution of the utility model is that the oil return pipeline is "S"-shaped, and includes, along the oil return direction, a horizontal section connected to the actuator, a vertical section connected to the horizontal section through a first inflection point, and an inclined section with one end connected to the vertical section through a second inflection point and the other end inclined upward and connected to the lubrication system.

[0009] A further improvement of the technical solution of the utility model is that: the monitoring camera is arranged at the first inflection point of the oil return pipeline; and the digital flow meter is arranged at the inclined section of the oil return pipeline close to the second inflection point.

[0010] A further improvement of the technical solution of the utility model is that a connecting pipe connecting the inner and outer spaces of the oil return pipe is integrally formed at the first inflection point thereof, and the monitoring camera is detachably arranged in the connecting pipe.

[0011] A further improvement of the technical solution of the utility model is that a sealing rubber ring is provided between the monitoring camera and the inner wall of the connecting pipe.

[0012] A further improvement of the technical solution of the utility model is that the connection between the connecting pipe and the oil return pipeline is rounded.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0014] The utility model discloses a device for monitoring the oil flow status inside the pipeline of the equipment lubrication system, which can monitor the oil flow status of the oil return pipeline of the lubrication system in real time, thereby preventing damage to the equipment due to factors such as poor oil supply, oil cut-off or false alarm of the lubrication system, as well as production losses caused by unnecessary downtime.

[0015] The monitoring camera adopted by the utility model can monitor the oil flow status inside the oil return pipeline of the equipment in real time and intuitively. There is no need for operators to go to the lubrication point of the equipment to observe the oil flow status of the oil return pipeline. It is suitable for places with harsh and dangerous environments where people are not suitable to enter, which improves the safety when monitoring the oil flow situation and is more convenient and quick.

[0016] The digital flow meter used in the utility model cooperates with the inclined section of the oil return pipeline. The inclined section inclined upward at a certain angle can ensure full pipe oil return at the second turning point of the oil return pipeline, which is convenient for the digital flow meter to detect the oil flow state.

[0017] The monitoring camera and digital flow meter adopted in the utility model are both connected to the signal transmission module, the feedback control module is respectively connected to the signal transmission module and the lubrication system, and the alarm is connected to the feedback control module, thereby forming a complete and closed-loop oil flow status monitoring, the lubrication system and the alarm are both uniformly regulated by the feedback control module, which can not only detect the oil flow condition in the return oil pipeline, but also realize the alarm function. When the flow rate of the lubricating oil in the return oil pipeline is higher or lower than the maximum or minimum oil flow value preset in the feedback control module, the feedback control module can control the alarm to alarm and prompt the staff. At the same time, it can also control the oil supply pressure of the lubrication system to achieve the purpose of regulating the oil flow condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the connection between the execution device and the lubrication system in the background technology of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the oil flow state monitoring device inside the pipeline of the equipment lubrication system of the utility model;

[0020] Among them, 1. Monitoring camera, 2. Oil return pipeline, 3. Lubricating oil, 4. Digital flow meter, 5. Connecting pipe, 6. Execution equipment, 7. Lubrication system, 8. Signal transmission module, 9. Feedback control module, 10. Alarm, 11. Oil supply pipeline. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the embodiments:

[0022] like Figure 2 As shown, a device for monitoring the oil flow state inside the pipeline of the equipment lubrication system includes a monitoring camera 1, a digital flowmeter 4, a signal transmission module 8, a feedback control module 9 and an alarm 10. The monitoring camera 1 and the digital flowmeter 4 are respectively arranged on the pipe wall of the oil return pipeline 2, the signal transmission module 8 is respectively connected to the monitoring camera 1 and the digital flowmeter 4, the feedback control module 9 is respectively connected to the signal transmission module 8 and the lubrication system 7, and the alarm 10 is connected to the feedback control module 9, wherein the lubrication system 7 and the alarm 10 are uniformly controlled by the feedback control module 9. Along the signal transmission direction, the input of the signal transmission module 8 is respectively connected to the output of the monitoring camera 1 and the digital flowmeter 4, the output of the signal transmission module 8 is connected to the input of the feedback control module 9, and the output of the feedback control module 9 is respectively connected to the input of the lubrication system 7 and the alarm 10, thereby forming a closed-loop oil flow state monitoring.

[0023] Specifically, the oil return pipe 2 is "S"-shaped, and includes a horizontal section, a vertical section and an inclined section in sequence along the oil return direction. The horizontal section is connected to the actuator 6, the upper end of the vertical section is connected to the horizontal section through a first inflection point, one end of the inclined section is connected to the lower end of the vertical section through a second inflection point, and the other end of the inclined section is inclined upward and connected to the lubrication system 7, thereby forming an "S"-shaped structure.

[0024] The monitoring camera 1 is arranged at the first inflection point of the oil return pipe 2. A connecting pipe 5 is integrally formed at the first inflection point of the oil return pipe 2 to connect the inner and outer spaces of the oil return pipe 2. The monitoring camera 1 is detachably arranged in the connecting pipe 5. A sealing rubber ring 1-1 is arranged between the monitoring camera 1 and the inner wall of the connecting pipe 5. The connection between the connecting pipe 5 and the oil return pipe 2 is rounded so that the lubricating oil 3 in the oil return pipe 2 can smoothly pass through the first inflection point, avoid the lubricating oil 3 from being stored at the connection between the connecting pipe 5 and the oil return pipe 2, and can smoothly flow from the horizontal section of the oil return pipe 2 into the vertical section.

[0025] The digital flowmeter 4 is arranged at the inclined section of the oil return pipe 2 near the second inflection point, and the inclined section of the oil return pipe 2 is inclined upward at a certain angle, which can ensure that the lubricating oil 3 in the oil return pipe 2 forms a full pipe return oil at the second inflection point, so that the digital flowmeter 4 can detect the oil flow state. Preferably, the digital flowmeter 4 can be an ultrasonic flowmeter, a mass flowmeter or other flowmeters that meet the flow monitoring requirements.

[0026] The signal transmission module 8 can adopt wired transmission or wireless transmission. Wired transmission can use coaxial cable. Since it is located in a harsh environment, the use of coaxial cable can protect the signal transmission from external electromagnetic interference. It can also use optical fiber transmission or other transmission methods. Optical fiber transmission is suitable for long distances, high bandwidth and severe electromagnetic interference environments. The use of optical fiber transmission can effectively reduce signal attenuation and interference.

[0027] The feedback control module 9 may adopt a PLC (Programmable Logic Controller), which can perform logic processing according to input signals (such as flow data and alarm conditions), pre-set the maximum oil flow value and the minimum oil flow value, and output a control signal to control the alarm and the lubrication system. PLC usually has a strong anti-interference ability and is more suitable for use in an industrial environment. A controller such as a microcontroller unit (MCU) that can meet the control requirements can also be used.

[0028] The utility model can achieve the purpose of closed-loop monitoring of oil flow status, and can not only detect the flow of lubricating oil 3 in the oil return pipeline 2, but also realize the alarm function. The maximum oil flow value and the minimum oil flow value are pre-set in the feedback control module 9. When the lubricating system 7 provides lubricating oil 3 to the execution device 6, the monitoring camera 1 cooperates with the digital flow meter 4 to monitor the flow of lubricating oil 3 in the oil return pipeline 2, and transmits the flow information to the feedback control module 9 through the signal transmission module 8. The feedback control module 9 processes the flow information and compares it with the pre-set maximum or minimum oil flow value. When the oil flow is higher or lower than the pre-set maximum or minimum oil flow value in the feedback control module 9, the feedback control module 9 controls the alarm 10 to alarm. At the same time, the feedback control module 9 controls the oil supply pressure of the lubricating system 7 to adjust the oil flow, thereby realizing real-time monitoring of the oil flow status of the oil return pipeline of the lubricating system 7, preventing the execution device 6 from being damaged due to poor oil supply, oil interruption or false alarm of the lubricating system 7, and preventing production losses due to unnecessary downtime.

[0029] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for monitoring the oil flow status inside a pipeline of an equipment lubrication system, characterized in that: The system comprises a monitoring camera (1) and a digital flow meter (4) arranged on the wall of an oil return pipeline (2), a signal transmission module (8) connected to the monitoring camera (1) and the digital flow meter (4) respectively, a feedback control module (9) connected to the signal transmission module (8) and the lubrication system (7) respectively, and an alarm (10) connected to the feedback control module (9), wherein the lubrication system (7) and the alarm (10) are uniformly controlled by the feedback control module (9).

2. The device for monitoring the internal oil flow state of a pipeline in a lubrication system of an equipment according to claim 1, characterized in that: The oil return pipeline (2) is in an "S" shape and includes, in sequence along the oil return direction, a horizontal section connected to the actuator (6), a vertical section connected to the horizontal section via a first inflection point, and an inclined section having one end connected to the vertical section via a second inflection point and the other end inclined upwardly and connected to the lubrication system (7).

3. The device for monitoring the internal oil flow state of a pipeline in a lubrication system of an equipment according to claim 2, characterized in that: The monitoring camera (1) is arranged at a first inflection point of the oil return pipeline (2); and the digital flow meter (4) is arranged at a position close to a second inflection point in the inclined section of the oil return pipeline (2).

4. The device for monitoring the internal oil flow state of a pipeline in a lubrication system of an equipment according to claim 3, characterized in that: A connecting pipe (5) is integrally formed at the first inflection point of the oil return pipe (2) to connect the inner and outer spaces thereof, and the monitoring camera (1) is detachably arranged in the connecting pipe (5).

5. The device for monitoring the internal oil flow state of a pipeline in a lubrication system of an equipment according to claim 4, characterized in that: A sealing rubber ring (1-1) is provided between the monitoring camera (1) and the inner wall of the connecting tube (5).

6. The device for monitoring the internal oil flow state of a pipeline in a lubrication system of an equipment according to any one of claims 4 or 5, characterized in that: The connection between the connecting pipe (5) and the oil return pipe (2) is rounded.

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