Lubricating grease hardening condition testing device and lubricating system

Abstract

The utility model belongs to the technical field of lubricating grease performance detection, and particularly relates to a lubricating grease hardening condition testing device and a lubricating system.The lubricating grease hardening condition testing device comprises a control unit, a flowmeter and a differential pressure gauge, and the control unit comprises a timer module; the flow meter is arranged on the lubricating main pipeline and is connected with the control unit; the differential pressure gauge is connected to an inlet and an outlet of the distributor and is connected with the control unit, the differential pressure gauge is used for measuring the pressure difference between the inlet and the outlet of the distributor so as to judge the hardening condition of lubricating grease in the distributor, and if the pressure difference exceeds a set value, the control unit sends a signal to inform a background maintenance terminal that the distributor needs to be cleaned and maintained; the flow meter measures the lubricating grease flow of the lubricating system main pipeline, transmits information to the control unit, knows that the lubricating grease flow speed within a certain time through the timer module, and indicates that the lubricating grease hardening degree of the lubricating main pipeline is high and the lubricating pipeline needs to be cleaned and maintained if the difference value between the lubricating grease flow speed and the initial flow speed is larger than a set value.

Description

Technical Field

[0001] The utility model belongs to the technical field of lubricating grease performance detection, and in particular relates to a lubricating grease hardening condition testing device and a lubrication system. Background Art

[0002] The automatic bearing lubrication system is an important part of mechanical equipment, and its operating status directly affects the performance and life of the equipment. However, in the actual operation process, the lubrication system may have problems such as hardening of grease in the lubrication system and blockage, which mainly manifests as pipe blockage and distributor blockage, leading to pipe burst, grease leakage and other problems.

[0003] Before the existing bearing automatic grease lubrication system is put into operation, the detection of grease is mainly focused on physical properties and pumpability. There is no good detection device for the deposition of grease in the pipes and distributors during the operation of the system, and it is impossible to accurately know the cleaning and maintenance cycle of the lubrication system pipes and distributors, which often leads to pipe bursts and distributor blockages, polluting the equipment operating environment, causing poor equipment lubrication and abnormal wear. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a grease hardening condition testing device and a lubrication system, which can accurately know the cleaning and maintenance cycle of the lubrication system pipeline and the distributor.

[0005] The utility model provides a grease hardening condition testing device, comprising:

[0006] A control unit, the control unit comprising a timer module;

[0007] A flow meter is arranged on the lubrication main line, and the flow meter is connected to the control unit;

[0008] A differential pressure gauge is connected to the inlet and outlet of the distributor, and the differential pressure gauge is connected to the control unit.

[0009] Optionally, the control unit further includes a controller, a storage module and a communication module, the storage module and the communication module are respectively connected to the controller, and the flow meter and the differential pressure meter are respectively communicatively connected to the communication module.

[0010] Optionally, the controller is a PLC or a single chip microcomputer.

[0011] Optionally, the communication module is integrated into the controller and is a wireless communication module.

[0012] Optionally, the grease hardening condition testing device further comprises a vibration sensor arranged at the lubrication main line and / or the distributor, and the vibration sensor is connected to the control unit.

[0013] Optionally, the vibration sensor is an acceleration sensor or a displacement sensor.

[0014] Optionally, the grease hardening condition testing device further comprises a temperature sensor arranged on the lubrication main line and / or the distributor, and the temperature sensor is connected to the control unit.

[0015] Optionally, the temperature sensor is a patch temperature sensor.

[0016] Optionally, the grease hardening condition testing device further comprises a safety valve arranged on the lubrication main line and / or the rear end branch line of the distributor.

[0017] The utility model also provides a lubrication system, comprising the lubrication grease hardening condition testing device, a lubrication pump, a lubrication main line and a distributor.

[0018] The beneficial effect of the utility model is that the differential pressure gauge is used to measure the pressure difference between the inlet and outlet of the distributor, and transmits the information to the control unit. When the pressure difference between the inlet and outlet of the distributor exceeds the set value, the control unit sends a signal to notify the background maintenance terminal, which is known by the maintenance personnel. The maintenance personnel can promptly operate the special maintenance device to clean and maintain the distributor; the flow meter measures the grease flow of the main line of the lubrication system, and transmits the information to the control unit. The technician can understand the grease flow rate within a certain period of time through the timer module. By comparing with the initial flow rate, when the difference between the measured grease flow rate and the initial flow rate is greater than the set value, it indicates that the grease hardening degree of the lubrication main line is high and is prone to blockage, and the lubrication line needs to be cleaned and maintained. In addition, the time for refilling the lubrication system each time is certain. The technician can compare the changes in the detected pressure difference value and flow rate value during several consecutive grease replenishments, judge the hardening trend of the grease in the main line and the distributor, and predict the approximate maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a grease hardening condition testing device provided by the utility model.

[0020] In the figure: 11, control unit; 111, timer module; 112, controller; 113, storage module; 114, communication module; 12, flow meter; 13, differential pressure gauge; 14, vibration sensor; 15, temperature sensor; 16, safety valve; 20, lubrication pump; 30, lubrication main line; 40, distributor; 50, branch line. DETAILED DESCRIPTION

[0021] like Figure 1As shown, the grease hardening condition testing device provided by the utility model includes: a control unit 11, a flow meter 12 and a differential pressure gauge 13, the control unit 11 includes a timer module 111; the flow meter 12 is arranged on the lubrication main line 30, and the flow meter 12 is connected to the control unit 11; the differential pressure gauge 13 is connected to the inlet and outlet of the distributor 40, and the differential pressure gauge 13 is connected to the control unit 11.

[0022] Compared with the prior art, the utility model provides a grease hardening condition testing device, the differential pressure gauge 13 is used to measure the pressure difference between the inlet and outlet of the distributor 40, and transmit the information to the control unit 11. When the pressure difference between the inlet and outlet of the distributor 40 exceeds the set value, the control unit 11 sends a signal to notify the background maintenance terminal, and the maintenance personnel are informed. The maintenance personnel can promptly operate a special maintenance device to clean and maintain the distributor 40; the flow meter 12 measures the grease flow rate of the main line of the lubrication system, and transmits the information to the control unit 11. The technician can understand the grease flow rate within a certain period of time through the timer module 111. By comparing with the initial flow rate, when the difference between the measured grease flow rate and the initial flow rate is greater than the set value, it indicates that the grease hardening degree of the lubrication main line 30 is high and blockage is prone to occur, and the lubrication line needs to be cleaned and maintained.

[0023] In addition, the regreasing time of the lubrication system is certain each time. The technician can compare the changes in the detected pressure difference and flow rate values ​​during several consecutive regreasing operations to determine the hardening trend of the grease in the main line and the distributor 40, and can predict the approximate maintenance time.

[0024] In one embodiment, the control unit 11 further includes a controller 112, a storage module 113 and a communication module 114, the storage module 113 and the communication module 114 are respectively connected to the controller 112, and the flow meter 12 and the differential pressure gauge 13 are respectively connected to the communication module 114. Specifically, the controller 112 is a PLC or a single-chip microcomputer, the flow meter 12 and the differential pressure gauge 13 are respectively connected to the communication interface of the communication module 114 by wire, or the flow meter 12 and the differential pressure gauge 13 are respectively connected to the communication module 114 through 4G, 5G or WIFI. The controller 112 sends instructions to the background terminal through the communication module 114, and the storage module 113 is used to store the information processed by the controller 112 and the control program.

[0025] In one embodiment, the communication module 114 is integrated into the controller 112 and is a wireless communication module, which can reduce the difficulty of installation and adapt to more places. Of course, in some embodiments, the communication module 114 can also be a wired communication module.

[0026] In one embodiment, the grease hardening condition test device further includes a vibration sensor 14 disposed at the lubrication main line 30 and / or the distributor 40, and the vibration sensor 14 is connected to the control unit 11. Specifically, the vibration sensor 14 is fixedly installed at a position close to the lubrication main line 30, and can detect the vibration condition of the lubrication main line 30. When the vibration distance continues to exceed the set value, it may be that the lubrication main line 30 or the distributor 40 is blocked, and abnormal vibration is generated when the grease is replenished, and inspection or maintenance is required. Through the vibration sensors 14 at different positions, it can be known which of the lubrication main line 30 and the distributor 40 has a problem. It can be used as a safety measure when the flow meter 12 or the differential pressure gauge 13 fails.

[0027] In this embodiment, the vibration sensor 14 is an acceleration sensor or a displacement sensor.

[0028] In one embodiment, the grease hardening condition testing device also includes a temperature sensor 15 arranged on the lubrication main line 30 and / or the distributor 40. The temperature sensor 15 is connected to the control unit 11 and is used to detect the operating temperatures of the lubrication main line 30 and the distributor 40 respectively to avoid damage to the lubrication system caused by abnormal temperature. Combined with the above-mentioned technical solution, the safety of the lubrication system is further guaranteed.

[0029] In one embodiment, the temperature sensor 15 is a patch-type temperature sensor, which is easier to install on the lubrication main line 30 and the distributor 40 , and has more complete contact and higher reliability.

[0030] In one embodiment, the grease hardening condition test device further includes a safety valve 16 disposed on the lubrication main line 30 and / or the branch line 50 at the rear end of the distributor 40. When the lubrication pump 20 is running to replenish grease, if the pressure on the lubrication main line 30 and / or the distributor 40 increases abnormally due to blockage or other reasons, the safety valve 16 can prevent the pipe from bursting. The safety valve 16 is a pressure-sensitive electronic safety valve 16, which is connected to the control unit 11 for communication. When the safety valve 16 is working, the controller 112 can control the lubrication pump 20 to stop running to avoid continuous discharge of grease.

[0031] The lubricating grease hardening condition testing device provided by the utility model is used for the lubrication system of a wind turbine generator.

[0032] The utility model also provides a lubrication system, including a grease hardening condition testing device, a lubrication pump 20, a lubrication main line 30 and a distributor 40. The grease hardening condition testing device can be used to timely maintain the lubrication system, improve the stability and safety of the lubrication system operation, and thus increase the service life of the lubrication system.

[0033] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0034] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A grease hardening condition testing device, characterized in that: include: A control unit (11), the control unit (11) comprising a timer module (111); a flow meter (12) disposed on the main lubrication line (30), wherein the flow meter (12) is connected to the control unit (11); A differential pressure gauge (13) is connected to the inlet and outlet of the distributor (40), and the differential pressure gauge (13) is connected to the control unit (11).

2. The grease hardening condition testing device according to claim 1, characterized in that: The control unit (11) further comprises a controller (112), a storage module (113) and a communication module (114); the storage module (113) and the communication module (114) are respectively connected to the controller (112); and the flow meter (12) and the differential pressure meter (13) are respectively connected to the communication module (114) in a communication manner.

3. The grease hardening condition testing device according to claim 2, characterized in that: The controller (112) is a PLC or a single-chip microcomputer.

4. The grease hardening condition testing device according to claim 2, characterized in that: The communication module (114) is integrated into the controller (112) and is a wireless communication module.

5. The grease hardening condition testing device according to claim 1, characterized in that: It also includes a vibration sensor (14) arranged at the lubrication main line (30) and / or the distributor (40), wherein the vibration sensor (14) is connected to the control unit (11).

6. The grease hardening condition testing device according to claim 5, characterized in that: The vibration sensor (14) is an acceleration sensor or a displacement sensor.

7. The grease hardening condition testing device according to claim 1, characterized in that: It also includes a temperature sensor (15) arranged on the lubrication main line (30) and / or the distributor (40), wherein the temperature sensor (15) is connected to the control unit (11).

8. The grease hardening condition testing device according to claim 7, characterized in that: The temperature sensor (15) is a patch type temperature sensor.

9. The grease hardening condition testing device according to claim 1, characterized in that: It also includes a safety valve (16) arranged on the main lubrication pipeline (30) and / or on the branch pipeline (50) at the rear end of the distributor (40).

10. A lubrication system, characterized in that: The invention comprises a grease hardening condition testing device as claimed in any one of claims 1 to 9, a lubrication pump (20), a lubrication main line (30) and a distributor (40).

Images