WO2020215315A1 - 轴承润滑系统及其控制方法 - Google Patents

轴承润滑系统及其控制方法 Download PDF

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Publication number
WO2020215315A1
WO2020215315A1 PCT/CN2019/084561 CN2019084561W WO2020215315A1 WO 2020215315 A1 WO2020215315 A1 WO 2020215315A1 CN 2019084561 W CN2019084561 W CN 2019084561W WO 2020215315 A1 WO2020215315 A1 WO 2020215315A1
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Prior art keywords
grease
bearing
module
sensor
amount
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PCT/CN2019/084561
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English (en)
French (fr)
Inventor
关冉
唐瑜
黄春亮
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舍弗勒技术股份两合公司
关冉
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Application filed by 舍弗勒技术股份两合公司, 关冉 filed Critical 舍弗勒技术股份两合公司
Priority to CN201980095779.0A priority Critical patent/CN113728192A/zh
Priority to PCT/CN2019/084561 priority patent/WO2020215315A1/zh
Publication of WO2020215315A1 publication Critical patent/WO2020215315A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
    • F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant

Definitions

  • the invention relates to the field of bearing lubrication, in particular to a bearing lubrication system and a control method thereof.
  • the current bearing lubrication system mainly focuses on relubrication, and is generally based on manually setting a fixed cycle to relubricate the bearing.
  • this bearing lubrication system may lead to insufficient lubrication or wasted grease to some extent.
  • the present invention proposes a bearing lubrication system that improves bearing lubrication according to the actual working condition of the grease in the bearing.
  • a bearing lubrication system including: a bearing (6); a grease pumping module (1) for pumping from the bearing (6) through a grease delivery pipe (8) Grease; a grease sensor (2) for detecting information corresponding to the grease pumped out by the grease pumping module (1); a grease injection module (4) for passing the grease The delivery pipe (8) injects grease into the bearing (6); and a controller (3) for pumping out the grease module (1) based on the information detected by the grease sensor (2) ) The pumping of the grease and the grease injection by the grease injection module (4) are controlled.
  • the grease sensor (2) is arranged in the grease delivery pipe (8) and is arranged close to the grease pumping module (1).
  • the grease sensor (2) is arranged in the grease pumping module (1).
  • the controller (3) feedback controls the grease pumping module (1) based on the information detected by the grease sensor (2).
  • the amount of grease pumped out and the amount of grease injected by the grease injection module (4) so that the amount of grease injected by the grease injection module (4) is equal to or greater than the grease
  • the amount of grease pumped out by the pump out module (1) is equal to or greater than the grease.
  • the grease pumping module (1) periodically pumps out a first amount of grease, and the grease sensor (2) detects that the Information corresponding to a quantity of grease, wherein, in the case that the information corresponding to the first quantity of grease detected by the grease sensor (2) satisfies a predetermined condition, the controller ( 3) Feedback control of the grease injection module (4) according to the information so that the grease injection module (4) injects a second amount of grease equal to or greater than the first amount, and in the lubrication If the information corresponding to the first amount of grease detected by the grease sensor (2) does not meet the predetermined condition, the controller (3) feedbacks and controls the grease pump out according to the information
  • the module (1) and the grease injection module (4) are used to replace at least a part of the grease in the bearing (6), so that the grease detected by the grease sensor (2) and the grease pump The information corresponding to the grease pumped by the output module (1) satisfies the predetermined condition.
  • the grease pumping module (1) pumps out the first amount of grease for a period shorter than a preset grease replacement cycle time.
  • the bearing lubrication system includes a plurality of bearings (6), and the bearing lubrication system further includes a switching module, and the switching module is used to connect to the plurality of bearings. (6), and the controller (3) according to the grease sensor (2) and the grease pumping module (1) to switch from the switch module to the bearing ( 6) Information about the grease pumped out, the grease pumping out of the bearing (6) performed by the grease pumping module (1) and the grease injection module (4) The grease injection into the bearing (6) is controlled.
  • it further includes a sending module, which is used to send the information detected by the grease sensor (2) to the cloud.
  • a display module is further included, and the display module is used to display the information detected by the grease sensor (2).
  • the bearing includes at least one of a tapered roller bearing, a cylindrical roller bearing, a ball bearing, a spherical roller bearing, and a sliding bearing.
  • the information corresponding to the grease pumped by the grease pumping module (1) includes the temperature of the grease, the water content of the grease, At least one of the metal particle content of the grease and the degree of aging of the grease.
  • a control method of a bearing lubrication system comprising: a bearing (6); a grease pumping module (1) for passing through the bearing (6)
  • the grease delivery pipe (8) pumps out the grease;
  • the grease sensor (2) is used to detect the information corresponding to the grease pumped out by the grease pump out module (1);
  • the grease injection module ( 4) for injecting grease into the bearing (6) via the grease delivery pipe (8)
  • the control method includes: a detection step for making the grease sensor (2) detect and The information corresponding to the grease pumped out by the grease pumping module (1); and the control steps are used to control the grease pumping module (1) according to the information detected by the grease sensor (2) )
  • the pumping of the grease and the grease injection by the grease injection module (4) are controlled.
  • the control step includes: feedback control of the grease pumped by the grease pumping module (1) according to the information detected by the grease sensor (2) The amount of grease and the amount of grease injected by the grease injection module (4) so that the amount of grease injected by the grease injection module (4) is equal to or greater than the grease pumped out The amount of grease pumped by the module (1).
  • the grease pumping module (1) periodically pumps a first amount of grease
  • the grease sensor (2) detects Information corresponding to the first amount of grease
  • the control In the step, the grease injection module (4) is feedback controlled according to the information so that the grease injection module (4) injects a second amount of grease equal to or greater than the first amount, and in the In the case that the information corresponding to the first amount of grease detected by the grease sensor (2) does not satisfy the predetermined condition, in the control step, feedback control of the grease pump based on the information
  • the output module (1) and the grease injection module (4) are used to replace at least a part of the grease in the bearing (6), so that the grease detected by the grease sensor (2) and the grease
  • the information corresponding to the grease pumped by the pumping module (1) satisfies the predetermined condition.
  • the bearing lubrication system includes a plurality of bearings (6), and the bearing lubrication system further includes a switching module, and the switching module is used to connect the plurality of bearings ( 6).
  • the control step includes: according to the grease sensor (2) and the grease pumping module (1) to switch from the switch module to the bearing ( 6) Information related to the grease pumped out, the grease pumping out of the bearing (6) performed by the grease pumping module (1) and the grease injection module (4) The grease injection into the bearing (6) is controlled.
  • the grease pumping module and the grease pumping can be performed according to the actual working condition of the grease in the bearing detected by the grease sensor.
  • the grease injection by the injection module is controlled.
  • the grease pumping module and the grease injecting module can be controlled in conjunction to intelligently relubricate the bearing, so that insufficient lubrication, excessive lubrication or grease waste can be avoided to a certain extent.
  • the lubrication status of the bearing can also be monitored through the grease condition information detected by the grease sensor.
  • Fig. 1 shows a structural block diagram of a bearing lubrication system according to an embodiment of the present invention.
  • Fig. 2 shows a schematic layout of a bearing lubrication system according to another embodiment of the present invention.
  • Fig. 3 shows a flow chart of a control method of a bearing lubrication system according to another embodiment of the present invention.
  • the current bearing lubrication system may lead to insufficient lubrication or waste of grease to a certain extent.
  • the current bearing lubrication system mainly focuses on the relubrication of the system, and the problem of draining old grease is often ignored.
  • the old grease should be extruded through the designed tunnel, but since the fluidity of the grease deteriorates during use, most of the grease actually being extruded is newly injected grease.
  • the newly injected grease is squeezed out, if the performance of the old grease is reduced, the new grease will not be effectively replenished and the relubrication will not be effective, which will cause poor lubrication, and the extruded grease will cause the cabin Environmental pollution.
  • the performance of the original old grease does not decrease, there is no need to add new grease, but because a fixed relubrication cycle is set, new grease is added, which will cause grease waste.
  • a grease sensor is installed in or near the bearing to detect the grease condition.
  • the grease sensor installed in the bearing cannot detect the grease condition well. , That is, it is difficult to detect the grease that actually helps lubrication. Therefore, the location of the grease sensor in the current bearing lubrication system cannot effectively detect the grease that actually contributes to the lubrication.
  • the present invention provides a bearing lubrication system, which can control the injection and pumping of grease into the bearing according to the actual working condition of the grease in the bearing, thereby intelligently controlling the bearing lubrication, and to a certain extent Solve the problem of insufficient lubrication, over-lubrication or waste of grease.
  • Fig. 1 shows a structural block diagram of a bearing lubrication system according to an embodiment of the present invention.
  • the bearing lubrication system may include: a bearing (6); a grease pumping module (1) for passing through the grease delivery pipe (8) from the bearing (6) (not shown in Figure 1) Pump grease; grease sensor (2), used to detect the information corresponding to the grease pumped out by the grease pump module (1), that is, the grease condition in the bearing; grease injection module (4) , Used for injecting grease into the bearing (6) through the grease delivery pipe (8); and the controller (3), used for the lubrication in the bearing (6) based on the information detected by the grease sensor (2)
  • the grease condition controls the pumping of the grease performed by the grease pumping module (1) and the injection of the grease performed by the grease injection module (4).
  • grease can be pumped from the bearing (6) through the grease pumping module (4), and then the grease in the bearing (6) can be detected by the grease sensor (2) Status and feedback the grease status to the controller (3). Then, the controller (3) can control the pumping of the grease performed by the grease pumping module (1) and the injection of the grease performed by the grease injection module (4) according to the grease status to replace the bearing (6) At least a part of grease.
  • the bearing lubrication system according to the embodiment of the present invention can control the grease pumping module (1) and the grease injection module (4) in a coordinated manner, and the bearing can be replaced according to the actual working condition of the grease in the bearing ( 6) Grease, which can intelligently improve the lubrication condition of the bearing lubrication system.
  • the bearing lubrication system according to the embodiment of the present invention can solve the problems of insufficient lubrication, excessive lubrication, or waste of grease to a certain extent.
  • the grease pumping module (4) is provided in the embodiment of the present invention, it can make the old grease in the bearing flow and pump out through the pump pressure, so it can effectively solve the problem of frequent discharge due to poor flow of the old grease. The problem with new grease.
  • Fig. 2 shows a schematic layout of a bearing lubrication system according to another embodiment of the present invention.
  • the bearing lubrication system can include a mechanical structure with a bearing (6) (as shown on the left side of Figure 2), a grease pumping module (1), a grease sensor (2), and a grease injection module (4), and the controller (3).
  • the mechanical structure equipped with a bearing (6) has a shaft (5), a sealing element (10), a pressure reducing valve (13) and an end cover (14).
  • the bearing (6) may include at least one of a tapered roller bearing, a cylindrical roller bearing, a ball bearing, a spherical roller bearing, and a sliding bearing.
  • the bearing types listed above are only examples, and the bearing applied to the bearing lubrication system of the embodiment of the present invention may also be any other type of bearing.
  • the bearing (6) is assembled with the sealing element (10) in the housing (7).
  • the pressure reducing valve (13) is designed to release pressure when the air pressure is greater than the trigger.
  • the pressure reducing valve (13) is used to prevent the sealing element (10) from malfunctioning due to the large air pressure caused by the grease pumping out of the module (1).
  • the pressure reducing valve (13) has an air filtering structure to avoid polluting the grease in the bearing (6).
  • the mechanical structure shown on the left side of Fig. 2 is only an example of the mechanical structure provided with the bearing (6), and the present invention is not limited to this, and the bearing lubrication system of the embodiment of the present invention can be applied to the bearing (6) Of any institutional structure.
  • the grease pumping module (1) and the grease injection module (4) are connected to the end cover (14) through the grease delivery pipe (8) to pump the grease from the bearing (6) or inject it into the bearing (6) Grease, so as to realize the lubrication of the bearing (6).
  • a check valve (9) and a flow meter (11) are provided to control the pumping of grease from the bearing (6), and Measure the amount of grease pumped out.
  • a check valve (9) and a flow meter (11) are also provided to control the injection of grease into the bearing (6) , And measure the amount of grease injected.
  • the grease sensor (2) is used to detect information corresponding to the grease pumped by the grease pumping module (1).
  • the information may include at least one of the temperature of the grease, the water content of the grease, the metal particle content of the grease, and the aging degree of the grease.
  • the information detected by the grease sensor (2) is not limited to the above-mentioned information, and may be any information that can reflect the condition of the grease in the bearing (6).
  • the grease sensor (2) is arranged in the grease delivery pipe (8) and is arranged near the grease pumping module (1). Thus, the grease sensor (2) can effectively detect the condition of the grease actually working in the bearing.
  • the grease sensor (2) may be arranged in the grease pumping module (1) or at the outlet of the grease pumped by the grease pumping module (1).
  • the installation positions of the grease sensor (2) listed above are only examples, and the present invention is not limited to this.
  • the grease sensor (2) can be installed at any position as long as it can effectively detect the actual grease working in the bearing. The condition is fine.
  • the old grease with poor fluidity in the bearing (6) can flow and be pumped from the bearing (6).
  • the grease sensor (2) in or near the grease pumping module (1), the condition of the grease actually working in the bearing can be effectively detected.
  • the controller (3) is connected to the grease pumping module (1), the grease sensor (2) and the grease injection module (4) through the cable (12), and according to the information detected by the grease sensor (2), That is, the grease condition in the bearing (6) controls the pumping of the grease performed by the grease pumping module (1) and the injection of the grease performed by the grease injection module (4).
  • the controller (3) can feedback control the amount of grease pumped by the grease pumping module (1) and the grease injection according to the information detected by the grease sensor (2)
  • the amount of grease injected by the module (4) is such that the amount of grease injected by the grease injection module (4) is equal to or greater than the amount of grease pumped by the grease pumping module (1).
  • the controller (3) can control the grease pumping module (1) and the grease injection module (4) in conjunction with the feedback of the information detected by the grease sensor (2), so as The actual working conditions in the bearing (6) control the replacement of the grease in the bearing (6).
  • the bearing can be lubricated intelligently, and the problems of insufficient lubrication, excessive lubrication or waste of grease can be solved to a certain extent.
  • the bearing lubrication system of the embodiment of the present invention may include a plurality of bearings (6).
  • the bearing lubrication system may also include a switching module (not shown in the figure), which is used to switch between the multiple bearings (6).
  • switching modules may be controllable distributors or controllable solenoid valves.
  • the switching module may be any other component as long as the switching between the bearings can be realized.
  • the controller (3) controls the lubrication according to the information detected by the grease sensor (2) related to the grease pumped by the bearing (6) to which the grease pumping module (1) is switched from the switching module
  • the grease pumping module (1) controls the grease pumping from the bearing (6) and the grease injection module (4) to control the grease injection to the bearing (6).
  • the switching module switches the control object of the controller (3) to a certain bearing (6) as needed, and the grease pumping module (1) can pass from the bearing (6) through the grease delivery pipe (8)
  • the grease is pumped out
  • the grease sensor (2) can detect the information related to the grease pumped from the bearing (6) by the grease pumping module (1)
  • the controller (3) can check the grease sensor (2) )
  • Grease pumping out and grease injection into the bearing (6) performed by the grease injection module (4) are controlled.
  • the control of the relubrication of the bearing (6) can be realized intelligently.
  • the bearing lubrication system according to the embodiment of the present invention can intelligently realize the control of the relubrication of the multiple bearings (6).
  • the bearing lubrication system according to the embodiment of the present invention can also similarly control the relubrication of one group of bearings (6) or multiple groups of bearings (6).
  • the bearing lubrication system of the embodiment of the present invention can also be connected to the cloud (cloud server).
  • the bearing lubrication system of the embodiment of the present invention may further include a sending module (not shown in the figure), which is used to send the information detected by the grease sensor (2), namely The grease status in the bearing (6) is sent to the cloud for further big data analysis. Therefore, the controller (3) can effectively control the replacement of the grease in the bearing (6) according to the result of big data analysis.
  • the bearing lubrication system of the embodiment of the present invention may further include a display module (not shown in the figure), which is used to display the information detected by the grease sensor (2).
  • a display module By setting the display module, the user of the bearing lubrication system can intuitively see the actual working condition of the grease in the bearing (6).
  • FIG. 3 is a flowchart showing a control method of a bearing lubrication system according to another embodiment of the present invention.
  • control method may include the following steps:
  • Step S301 the grease pumping module (1) periodically pumps out a small amount (first amount) of grease
  • Step S302 the grease sensor (2) detects information corresponding to the first amount of grease
  • Step S303 In the case that the information corresponding to the first amount of grease detected by the grease sensor (2) satisfies a predetermined condition, the controller (3) feedback controls the grease injection module (4) according to the information, So that the grease injection module (4) injects an amount of grease equal to or greater than the first amount; and
  • Step S304 In the case that the information corresponding to the first amount of grease detected by the grease sensor (2) does not meet the predetermined condition, the controller (3) feedbacks and controls the grease pumping module according to the information (1) and the grease injection module (4) to replace at least part of the grease in the bearing (6), so that what is detected by the grease sensor (2) and the grease pumped out by the grease pumping module (1) The information corresponding to the grease meets the predetermined conditions.
  • the pump pressure of the grease pumping module (1) is used to periodically pump a small amount (that is, a first amount) of grease from the bearing (6).
  • the period of the grease pumping module (1) pumping out the first amount of grease is shorter than the preset grease replacement cycle time (normal grease replacement cycle time of the bearing lubrication system).
  • the grease sensor (2) detects information corresponding to the first amount of grease pumped out (such as the temperature of the grease, the water content of the grease, the metal particle content of the grease, and the degree of aging of the grease, etc. ) To obtain the condition of the grease pumped out, and then provide feedback to the controller (3).
  • the controller (3) it is determined whether the condition of the pumped grease satisfies a predetermined condition, that is, whether the grease condition is good.
  • a predetermined condition that is, whether the grease condition is good
  • the controller (3) controls the grease injection module (4) so that the grease injection module (4) injection is equal to or greater than the first
  • the second amount of grease Since the grease may be volatilized to a certain extent when the grease is injected, the second amount is usually greater than the first amount.
  • the controller (3) controls the grease pumping module (1) and the grease injection module (4), At least part of the grease in the bearing (6) is replaced, so that the information corresponding to the grease pumped out by the grease pumping module (1) detected by the grease sensor (2) meets the predetermined condition.
  • the controller (3) can make the grease pumping module (1) pump more grease from the bearing (6), and control the grease injection module (4) ), so that the grease injection module (4) injects a third amount of grease that is greater than or equal to the total amount of grease pumped out (which includes the first amount of grease previously pumped out).
  • the controller (3) can first make the grease pumping module (1) pump out the preset fourth amount (which is usually greater than the first amount) Then, the grease injection module (4) injects grease equal to or greater than the sum of the first amount and the fourth amount. Then, the grease pumping module (1) is used to pump the first amount of grease again, and the grease sensor (2) is used to detect the grease condition of the pumped grease.
  • the controller (3) judges the grease condition, and if the grease condition is good, causes the grease injection module (4) to inject a second amount of grease equal to or greater than the first amount, and if the grease condition If it is not good, repeat the process of pumping out the fourth amount of grease from the grease pumping module (1) and the grease injecting module (4) injecting grease equal to or greater than the sum of the first amount and the fourth amount until The grease sensor (2) detects that the grease pumped out is in good condition. In addition, when it is determined that the grease condition is good, the controller (3) causes the grease injection module (4) to inject a second amount of grease equal to or greater than the first amount.
  • the controller (3) can first inject the grease injection module (4) according to the grease holding capacity in the bearing (6), etc. The appropriate fifth amount of grease. Then, the controller (3) causes the grease pumping module (1) to pump out the fifth amount (or less than the fifth amount) of grease, and uses the grease sensor (2) to detect the amount of grease pumped out Grease condition.
  • the controller (3) judges the grease condition, and if the grease condition is good, causes the grease injection module (4) to inject a second amount of grease equal to or greater than the first amount, and if the grease condition If it is not good, repeat the above process of the grease pumping module (1) pumping out the fifth amount of grease and the grease injection module (4) injecting the fifth amount of grease until the grease sensor (2) detects The grease pumped out is in good condition.
  • the controller (3) causes the grease injection module (4) to inject a second amount of grease equal to or greater than the first amount.
  • the grease may be volatilized to a certain extent when the grease is injected, the amount of grease injected is usually greater than the amount of grease pumped out when replacing the grease to ensure the bearing (6) The total amount of grease is appropriate.
  • the grease can be replaced according to the actual grease condition in the bearing, so that the grease condition of the bearing can be effectively improved and the bearing can be properly lubricated.
  • the amount of grease in the bearing can be kept stable, and grease leakage, seal failure, insufficient lubrication, and excessive lubrication can be avoided. As a result, the service life of the bearing will also be improved, and the cost of grease will be reduced.
  • the bearing lubrication system of the embodiment of the present invention has the following advantages.
  • the relubrication cycle time can be adjusted according to the actual grease condition, thereby intelligently controlling the bearing Re-lubrication, thereby avoiding insufficient lubrication, over-lubrication or waste of grease to a certain extent.
  • the failure of the bearing sealing element can be avoided.

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Abstract

本发明提供一种轴承润滑系统及其控制方法，该轴承润滑系统包括：轴承(6)；润滑脂泵出模块(1)，用于从轴承(6)经由润滑脂输送管(8)泵出润滑脂；润滑脂传感器(2)，用于检测与润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；润滑脂注入模块(4)，用于经由润滑脂输送管(8)向轴承(6)注入润滑脂；以及控制器(3)，用于根据润滑脂传感器(2)所检测到的信息，对润滑脂泵出模块(1)所进行的润滑脂的泵出和润滑脂注入模块(4)所进行的润滑脂的注入进行控制。根据本发明实施例提供的轴承润滑系统，可以连动地控制润滑脂泵出模块(1)和润滑脂注入模块(4)，由此可以根据轴承的实际工作状况智能地对轴承进行润滑，从而可以在一定程度上避免润滑不足、润滑过度和润滑脂浪费。

Description

轴承润滑系统及其控制方法 技术领域
本发明涉及轴承润滑领域，尤其涉及一种轴承润滑系统及其控制方法。
背景技术
在例如风力涡轮机应用中，需要对风力涡轮机中的轴承进行润滑。目前的轴承润滑系统主要聚焦于再润滑，并且一般基于手动设置固定周期来进行对轴承的再润滑。然而，这种轴承润滑系统可能在一定程度上导致润滑不足或润滑脂浪费。
发明内容
有鉴于此，本发明提出了一种根据润滑脂在轴承中的实际工作状况来改善轴承润滑的轴承润滑系统。
根据本发明的一方面，提供了一种轴承润滑系统，包括：轴承(6)；润滑脂泵出模块(1)，用于从所述轴承(6)经由润滑脂输送管(8)泵出润滑脂；润滑脂传感器(2)，用于检测与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；润滑脂注入模块(4)，用于经由所述润滑脂输送管(8)向所述轴承(6)注入润滑脂；以及控制器(3)，用于根据所述润滑脂传感器(2)所检测到的信息，对所述润滑脂泵出模块(1)所进行的润滑脂泵出和所述润滑脂注入模块(4)所进行的润滑脂注入进行控制。
对于上述轴承润滑系统，在一种可能的实现方式中，所述润滑脂传感器(2)设置在所述润滑脂输送管(8)中，并靠近所述润滑脂泵出模块(1)设置。
对于上述轴承润滑系统，在一种可能的实现方式中，所述润滑脂传感器(2)设置在所述润滑脂泵出模块(1)中。
对于上述轴承润滑系统，在一种可能的实现方式中，所述控制器(3)根据所述润滑脂传感器(2)所检测到的信息，反馈控制所述润滑脂泵出模块(1)所泵出的润滑脂的量和所述润滑脂注入模块(4)所注入的润滑脂的量，以使得所述润滑脂注入模块(4)所注入的润滑脂的量等于或大于所述润滑脂泵出模块(1)所泵出的润滑脂的量。
对于上述轴承润滑系统，在一种可能的实现方式中，所述润滑脂泵出模块(1)周期性地泵出第一量的润滑脂，所述润滑脂传感器(2)检测与所述第一量的润滑脂相对应的信息，其中，在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息满足预定条件的情况下，所述控制器(3)根据该信息反馈控制所述润滑脂注入模块(4)，以使所述润滑脂注入模块(4)注入等于或大于所述第一量的第二量的润滑脂，以及在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息不满足所述预定条件的情况下，所述控制器(3)根据该信息反馈控制所述润滑脂泵出模块(1)和所述润滑脂注入模块(4)，以更换所述轴承(6)中的至少一部分润滑脂，从而使得所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息满足所述预定条件。
对于上述轴承润滑系统，在一种可能的实现方式中，所述润滑脂泵出模块(1)泵出所述第一量的润滑脂的周期短于预设的润滑脂更换循环时间。
对于上述轴承润滑系统，在一种可能的实现方式中，所述轴承润滑系统包括多个轴承(6)，所述轴承润滑系统还包括切换模块，所述切换模块用于在所述多个轴承(6)之间进行切换，以及所述控制器(3)根据所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)从所述切换模块切换至的轴承(6)所泵出的润滑脂有关的信息，对所述润滑脂泵出模块(1)所进行的从该轴承(6)的润滑脂泵出和所述润滑脂注入模块(4)所进行的向该轴承(6)的润滑脂注入进行控制。
对于上述轴承润滑系统，在一种可能的实现方式中，还包括发送模块，所述发送模块用于将所述润滑脂传感器(2)所检测到的信息发送至云端。
对于上述轴承润滑系统，在一种可能的实现方式中，还包括显示模块，所述显示模块用于显示所述润滑脂传感器(2)所检测到的信息。
对于上述轴承润滑系统，在一种可能的实现方式中，所述轴承包括圆锥滚子轴承、圆柱滚子轴承、滚珠轴承、球面滚子轴承和滑动轴承其中至少之一。
对于上述轴承润滑系统，在一种可能的实现方式中，与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息包括该润滑脂的温度、该润滑脂的含水量、该润滑脂的金属颗粒物含量以及该润滑脂的老化程度其中至少之一。
根据本发明的另一方面，提供了一种轴承润滑系统的控制方法，所述轴承润滑系统包括：轴承(6)；润滑脂泵出模块(1)，用于从所述轴承(6)经由润滑脂输送管(8)泵出润滑脂；润滑脂传感器(2)，用于检测与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；以及润滑脂注入模块(4)，用于经由所述润滑脂输送管(8)向所述轴承(6)注入润滑脂，所述控制方法包括：检测步骤，用于使所述润滑脂传感器(2)检测与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；以及控制步骤，用于根据所述润滑脂传感器(2)所检测到的信息，对所述润滑脂泵出模块(1)所进行的润滑脂泵出和所述润滑脂注入模块(4)所进行的润滑脂注入进行控制。
对于上述控制方法，在一种可能的实现方式中，所述控制步骤包括：根据所述润滑脂传感器(2)所检测到的信息，反馈控制所述润滑脂泵出模块(1)所泵出的润滑脂的量和所述润滑脂注入模块(4)所注入的润滑脂的量，以使得所述润滑脂注入模块(4)所注入的润滑脂的量等于或大于所述润滑脂泵出模块(1)所泵出的润滑脂的量。
对于上述控制方法，在一种可能的实现方式中，使所述润滑脂泵出模块(1)周期性地泵出第一量的润滑脂，使所述润滑脂传感器(2)检测与所述第一量的润滑脂相对应的信息，其中，在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息满足预定条件的情况下，在所述控制步骤中，根据该信息反馈控制所述润滑脂注入模块(4)，以使所述润滑脂注入模块(4)注入等于或大于所述第一量的第二量的润滑脂，以及在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息不满足所述预定条件的情况下，在所述控制步骤中，根据该信息反馈控制所述润滑脂泵出模块(1)和所述润滑脂注入模块(4)，以更换所述轴承(6)中的至少一部分润滑脂，从而使得所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息满足所述预定条件。
对于上述控制方法，在一种可能的实现方式中，所述轴承润滑系统包括多个轴承(6)，所述轴承润滑系统还包括切换模块，所述切换模块用于在所述多个轴承(6)之间进行切换，在所述控制步骤中，包括：根据所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)从所述切换模块切换至的轴承(6)所泵出的润滑脂有关的信息，对所述润滑脂泵出模块(1)所进行的从该轴承(6) 的润滑脂泵出和所述润滑脂注入模块(4)所进行的向该轴承(6)的润滑脂注入进行控制。
通过本发明实施例的轴承润滑系统及其控制方法，可以根据润滑脂传感器所检测到的润滑脂在轴承中的实际工作状况来对润滑脂泵出模块所进行的润滑脂的泵出和润滑脂注入模块所进行的润滑脂的注入进行控制。由此，可以连动地控制润滑脂泵出模块和润滑脂注入模块，从而智能地对轴承进行再润滑，从而使得可以在一定程度上避免润滑不足、润滑过度或润滑脂浪费。此外，通过润滑脂传感器所检测的润滑脂状况信息，还可以监控轴承的润滑状态。
根据下面参考附图对示例性实施例的详细说明，本发明的其它特征及方面将变得清楚。
附图说明
包含在说明书中并且构成说明书的一部分的附图与说明书一起示出了本发明的示例性实施例、特征和方面，并且用于解释本发明的原理。
图1示出根据本发明一实施例的轴承润滑系统的结构框图。
图2示出根据本发明的另一实施例的轴承润滑系统的布置示意图。
图3示出根据本发明的又一实施例的轴承润滑系统的控制方法的流程图。
附图标记列表
1润滑脂泵出模块；2润滑脂传感器；3控制器；4润滑脂注入模块；5轴；6轴承；7壳体；8润滑脂输送管；9单向阀；10密封元件；11流量计；12电缆；13减压阀；14端盖
具体实施方式
以下将参考附图详细说明本发明的各种示例性实施例、特征和方面。附图中相同的附图标记表示功能相同或相似的元件。尽管在附图中示出了实施例的各种方面，但是除非特别指出，不必按比例绘制附图。
在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。
另外，为了更好的说明本发明，在下文的具体实施方式中给出了众多 的具体细节。本领域技术人员应当理解，没有某些具体细节，本发明同样可以实施。在另外一些实例中，对于本领域技术人员熟知的方法、手段、元件和电路未作详细描述，以便于凸显本发明的主旨。
如背景技术所述，目前的轴承润滑系统可能在一定程度上导致润滑不足或润滑脂浪费。
具体而言，目前的轴承润滑系统主要聚焦于系统的再润滑，而旧的润滑脂(grease)排泄的问题往往被忽略。通常情况下，旧的润滑脂应当通过所设计的隧道挤出，但是由于润滑脂的流动性在使用过程中变差，因此目前实际上被挤出的润滑脂大多是新注入的润滑脂。此外，在新注入润滑脂被挤出时，如果旧润滑脂性能下降时，则由于新润滑脂未有效补充会造成不能有效再润滑，因此会引起润滑不良，并且挤出的润滑脂会造成机舱环境污染。另一方面，如果原有的旧润滑脂性能并未下降，则原本不用添加新的润滑脂，但是由于设置了固定的再润滑周期，因此添加了新的润滑脂，这会造成润滑脂浪费。
此外，在对轴承润滑系统进行再润滑时，通常基于手动设置固定周期来进行润滑脂的更换、即对轴承的再润滑。然而，对于风力涡轮机而言，以手动设置固定周期来进行润滑脂的更换变得越来越难，这是因为陆地风力涡轮机现在变得更高并且存在越来越多的海上风力涡轮机。此外，在手动设置时，润滑脂再循环时间通常是固定的，并且不能根据轴承工作状况而改变，因此这也将在一定程度上导致润滑不足或润滑脂浪费。
此外，为了及时掌握轴承中的润滑脂的工作状况，通过在轴承中或其附近设置润滑脂传感器来检测润滑脂状况。然而，在实际应用中，由于轴承中有一部分润滑脂很少流动，并且轴承转速和外界温度等引起的润滑脂分布情况不同，因此安装在轴承中的润滑脂传感器不能很好地检测润滑脂状况，即很难检测到实际上有助于润滑的润滑脂。因此，目前的轴承润滑系统中的润滑脂传感器的设置位置不能有效地检测实际上有助于润滑的润滑脂。
此外，在现有的轴承润滑系统中，无论是旧润滑脂泵出还是新润滑脂注入，都是基于手动设置的润滑脂再循环时间的，这也经常导致润滑不足或润滑脂浪费。
有鉴于上述问题，本发明提供了一种轴承润滑系统，其可以根据润滑脂 在轴承中的实际工作状况来控制润滑脂向轴承的注入和泵出，由此智能控制轴承润滑，并且在一定程度上解决润滑不足、润滑过度或润滑脂浪费的问题。
以下将具体阐述本发明的实施例的轴承润滑系统的结构、布置及其控制方法。
图1示出根据本发明一实施例的轴承润滑系统的结构框图。如图1所示，该轴承润滑系统可以包括：轴承(6)；润滑脂泵出模块(1)，用于从轴承(6)经由润滑脂输送管(8)(图1中未示出)泵出润滑脂；润滑脂传感器(2)，用于检测与润滑脂泵出模块(1)所泵出的润滑脂相对应的信息、即轴承中的润滑脂状况；润滑脂注入模块(4)，用于经由润滑脂输送管(8)向轴承(6)注入润滑脂；以及控制器(3)，用于根据润滑脂传感器(2)所检测到的信息、即轴承(6)中的润滑脂状况，对润滑脂泵出模块(1)所进行的润滑脂的泵出和润滑脂注入模块(4)所进行的润滑脂的注入进行控制。
根据本发明实施例的轴承润滑系统，可以通过润滑脂泵出模块(4)从轴承(6)中泵出润滑脂，然后可以通过润滑脂传感器(2)来检测轴承(6)中的润滑脂状况，并将该润滑脂状况反馈至控制器(3)。接着，控制器(3)可以根据该润滑脂状况来控制润滑脂泵出模块(1)所进行的润滑脂的泵出和润滑脂注入模块(4)所进行的润滑脂的注入，以更换轴承(6)中的至少一部分润滑脂。由此，根据本发明实施例的轴承润滑系统可以连动地控制润滑脂泵出模块(1)和润滑脂注入模块(4)，并且可以根据润滑脂在轴承中的实际工作状况来更换轴承(6)中的润滑脂，由此可以智能地改善轴承润滑系统的润滑状况。与基于固定的润滑脂再循环时间来对轴承进行润滑相比，根据本发明实施例的轴承润滑系统可以在一定程度上解决润滑不足、润滑过度或润滑脂浪费的问题。此外，由于本发明实施例中设置有润滑脂泵出模块(4)，其可以通过泵压力来使轴承中的旧润滑脂流动并泵出，因此可以有效解决由于旧润滑脂流动差而经常排出新润滑脂的问题。
图2示出根据本发明的另一实施例的轴承润滑系统的布置示意图。
如图2所示，该轴承润滑系统可以包括具备轴承(6)的机械结构(如图2左侧所示)、润滑脂泵出模块(1)、润滑脂传感器(2)、润滑脂注入模块(4)、以及控制器(3)。
此外，如图2左侧所示，在具备轴承(6)的机械结构中，具有轴(5)、密封 元件(10)、减压阀(13)和端盖(14)。在一种可能的实现方式中，轴承(6)可以包括圆锥滚子轴承、圆柱滚子轴承、滚珠轴承、球面滚子轴承和滑动轴承其中至少之一。当然，以上列举的轴承类型仅是示例，本发明实施例的轴承润滑系统所应用的轴承还可以是其它任何类型的轴承。轴承(6)在壳体(7)中与密封元件(10)组装在一起。减压阀(13)被设计成在气压大于触发器时释放压力。减压阀(13)用于防止密封元件(10)由于润滑脂泵出模块(1)所引起的大的空气压力而导致发生故障。减压阀(13)具有空气过滤结构，以避免污染轴承(6)中的润滑脂。注意，如图2左侧所示的机械结构仅仅是具备轴承(6)的机械结构的一个示例，并且本发明不限于此，并且本发明实施例的轴承润滑系统可以应用于具备轴承(6)的任何机构结构。
润滑脂泵出模块(1)和润滑脂注入模块(4)通过润滑脂输送管(8)与端盖(14)连接，以将润滑脂从轴承(6)泵出或向轴承(6)注入润滑脂，从而实现对轴承(6)的润滑。在与润滑脂泵出模块(1)连接的润滑脂输送管(8)中，设置有单向阀(9)和流量计(11)，以控制润滑脂从轴承(6)的泵出，并且测量所泵出的润滑脂量。类似地，在与润滑脂注入模块(4)连接的润滑脂输送管(8)中，也设置有单向阀(9)和流量计(11)，以控制润滑脂向轴承(6)的注入，并测量所注入的润滑脂量。
润滑脂传感器(2)用于检测与润滑脂泵出模块(1)所泵出的润滑脂相对应的信息。在一种可能的实现方式中，该信息可以包括润滑脂的温度、润滑脂的含水量、润滑脂的金属颗粒物含量以及润滑脂的老化程度其中至少之一。注意，润滑脂传感器(2)所检测到的信息不限于上述信息，并且可以是能够体现轴承(6)中的润滑脂的状况的任何信息。在一种可能的实现方式中，如图2所示，润滑脂传感器(2)设置在润滑脂输送管(8)中，并靠近润滑脂泵出模块(1)设置。由此，润滑脂传感器(2)可以有效地检测到实际在轴承中工作的润滑脂的状况。在另一种可能的实现方式中，润滑脂传感器(2)可以设置在润滑脂泵出模块(1)中或者润滑脂泵出模块(1)所泵出的润滑脂的出口处。以上列举的润滑脂传感器(2)的设置位置仅是示例，并且本发明不限于此，润滑脂传感器(2)可以设置在任意位置，只要能够有效地检测到实际在轴承中工作的润滑脂的状况即可。
通过设置润滑脂泵出模块(1)，可以使轴承(6)中的流动性变差的旧润滑 脂流动并从轴承(6)泵出。此外，通过将润滑脂传感器(2)设置在润滑脂泵出模块(1)中或及附近，可以有效地检测到实际在轴承中工作的润滑脂的状况。
控制器(3)通过电缆(12)与润滑脂泵出模块(1)、润滑脂传感器(2)和润滑脂注入模块(4)连接，并且根据润滑脂传感器(2)所检测到的信息、即轴承(6)中的润滑脂状况来对润滑脂泵出模块(1)所进行的润滑脂的泵出和润滑脂注入模块(4)所进行的润滑脂的注入进行控制。在一种可能的实现方式中，控制器(3)可以根据润滑脂传感器(2)所检测到的信息，反馈控制润滑脂泵出模块(1)所泵出的润滑脂的量和润滑脂注入模块(4)所注入的润滑脂的量，以使得润滑脂注入模块(4)所注入的润滑脂的量等于或大于润滑脂泵出模块(1)所泵出的润滑脂的量。由此，控制器(3)可以通过接收润滑脂传感器(2)所检测到的信息的反馈，连动地控制润滑脂泵出模块(1)和润滑脂注入模块(4)，从而根据润滑脂在轴承(6)中的实际工作状况来控制轴承(6)中的润滑脂的更换。与以基于手动设置的固定的再润滑循环时间对轴承(6)进行润滑相比，可以智能地对轴承进行润滑，并且在一定程度上解决润滑不足、润滑过度或润滑脂浪费的问题。
需要注意的是，在图2中，仅示出一个轴承(6)。然而，本发明不限于此，并且本发明实施例的轴承润滑系统可以包括多个轴承(6)。在这种情况下，轴承润滑系统还可以包括切换模块(图中未示出)，该切换模块用于在多个轴承(6)之间进行切换。切换模块的示例可以是可控制分配器或可控制电磁阀。然而，本发明不限于此，切换模块可以是任何其它构件，只要能够实现轴承之间的切换即可。相应地，控制器(3)根据润滑脂传感器(2)所检测到的与润滑脂泵出模块(1)从切换模块切换至的轴承(6)所泵出的润滑脂有关的信息，对润滑脂泵出模块(1)所进行的从该轴承(6)的润滑脂泵出和润滑脂注入模块(4)所进行的向该轴承(6)的润滑脂注入进行控制。
具体而言，在切换模块根据需要将控制器(3)的控制对象切换至某一轴承(6)，润滑脂泵出模块(1)可以从该轴承(6)经由润滑脂输送管(8)泵出润滑脂，润滑脂传感器(2)可以检测与润滑脂泵出模块(1)从该轴承(6)泵出的润滑脂有关的信息，并且控制器(3)可以根据润滑脂传感器(2)所检测到的与润滑脂泵出模块(1)从该轴承(6)所泵出的润滑脂有关的信息，对润滑脂泵出模块(1)所进行的从该轴承(6)的润滑脂泵出和润滑脂注入模块(4)所进行的向该轴承(6) 的润滑脂注入进行控制。由此，可以智能地实现对该轴承(6)的再润滑的控制。
由此，根据本发明实施例的轴承润滑系统，可以智能地实现对多个轴承(6)的再润滑的控制。此外，根据本发明实施例的轴承润滑系统还可以类似地对一组轴承(6)或多组轴承(6)的再润滑进行控制。
此外，本发明实施例的轴承润滑系统还可以连接至云端(云服务器)。相应地，在一种可能的实现方式中，本发明实施例的轴承润滑系统还可以包括发送模块(图中未示出)，其用于将润滑脂传感器(2)所检测到的信息、即轴承(6)中的润滑脂状况发送至云端，以进行进一步的大数据分析。由此，控制器(3)可以根据大数据分析的结果来有效控制对轴承(6)中的润滑脂的更换。
此外，本发明实施例的轴承润滑系统还可以包括显示模块(图中未示出)，其用于显示润滑脂传感器(2)所检测到的信息。通过设置显示模块，轴承润滑系统的使用者可以直观地看到润滑脂在轴承(6)中的实际工作状况。
以下将具体阐述轴承润滑系统的控制方法。图3是示出根据本发明的又一实施例的轴承润滑系统的控制方法的流程图。
如图3所示，该控制方法可以包括以下步骤：
步骤S301、润滑脂泵出模块(1)周期性地泵出少量(第一量)的润滑脂；
步骤S302、润滑脂传感器(2)检测与第一量的润滑脂相对应的信息；
步骤S303、在润滑脂传感器(2)所检测到的与第一量的润滑脂相对应的信息满足预定条件的情况下，控制器(3)根据该信息反馈控制润滑脂注入模块(4)，以使润滑脂注入模块(4)注入等于或大于第一量的量的润滑脂；以及
步骤S304、在润滑脂传感器(2)所检测到的与第一量的润滑脂相对应的信息不满足预定条件的情况下，所述控制器(3)根据该信息反馈控制润滑脂泵出模块(1)和润滑脂注入模块(4)，以更换轴承(6)中的至少一部分润滑脂，从而使得润滑脂传感器(2)所检测到的与润滑脂泵出模块(1)所泵出的润滑脂相对应的信息满足预定条件。
具体而言，利用润滑脂泵出模块(1)的泵压力周期性地从轴承(6)中泵出少量(即第一量)润滑脂。在一种可能的实现方式中，润滑脂泵出模块(1)泵出第一量的润滑脂的周期短于预设的润滑脂更换循环时间(轴承润滑系统的正常润滑脂更换循环时间)。接着，润滑脂传感器(2)检测与所泵出的第一量的润滑脂相对应的信息(诸如润滑脂的温度、润滑脂的含水量、润滑脂的金属 颗粒物含量以及润滑脂的老化程度等)，由此得到所泵出的润滑脂的状况，然后向控制器(3)提供反馈。在控制器(3)中，判断所泵出的润滑脂的状况是否满足预定条件、即润滑脂状况是否良好。在判断为润滑脂状况满足预定条件、即润滑脂状况良好的情况下，控制器(3)对润滑脂注入模块(4)进行控制，以使润滑脂注入模块(4)注入等于或大于第一量的第二量的润滑脂。由于在注入润滑脂时润滑脂可能存在一定程度的挥发，因此第二量通常大于第一量。
另一方面，在判断为润滑脂状况不满足预定条件、即润滑脂状况不好的情况下，控制器(3)对润滑脂泵出模块(1)和润滑脂注入模块(4)进行控制，以更换轴承(6)中的至少一部分润滑脂，从而使得润滑脂传感器(2)所检测到的与润滑脂泵出模块(1)所泵出的润滑脂相对应的信息满足预定条件。具体而言，在润滑脂状况不好的情况下，控制器(3)可以使润滑脂泵出模块(1)从轴承(6)中泵出更多润滑脂，并且控制润滑脂注入模块(4)，以使润滑脂注入模块(4)注入大于或等于总泵出润滑脂量(其包括之前泵出的第一量的润滑脂)的第三量的润滑脂。
在一种可能的实现方式，在润滑脂状况不好的情况下，控制器(3)可以首先使润滑脂泵出模块(1)泵出预设的第四量(其通常大于第一量)的润滑脂，然后使润滑脂注入模块(4)注入等于或大于第一量与第四量的总和的润滑脂。接着，再次使润滑脂泵出模块(1)泵出第一量的润滑脂，并使用润滑脂传感器(2)检测所泵出的润滑脂的润滑脂状况。然后，控制器(3)对润滑脂状况进行判断，并且如果润滑脂状况良好，则使润滑脂注入模块(4)注入等于或大于第一量的第二量的润滑脂，以及如果润滑脂状况不好，则重复上述润滑脂泵出模块(1)泵出第四量的润滑脂和润滑脂注入模块(4)注入等于或大于第一量与第四量的总和的润滑脂的过程，直至润滑脂传感器(2)检测到所泵出的润滑脂的润滑脂状况良好为止。此外，在判断为润滑脂状况良好的情况下，控制器(3)使润滑脂注入模块(4)注入等于或大于第一量的第二量的润滑脂。
在另一种可能的实现方式中，在润滑脂状况不好的情况下，控制器(3)可以首先根据轴承(6)中对润滑脂的容纳能力等来使润滑脂注入模块(4)注入适当的第五量的润滑脂。然后，控制器(3)使润滑脂泵出模块(1)泵出第五量(或少于第五量)的润滑脂，并使用润滑脂传感器(2)来检测所泵出的润滑脂的润滑脂状况。然后，控制器(3)对润滑脂状况进行判断，并且如果润滑脂状况良 好，则使润滑脂注入模块(4)注入等于或大于第一量的第二量的润滑脂，以及如果润滑脂状况不好，则重复上述的润滑脂泵出模块(1)泵出第五量的润滑脂和润滑脂注入模块(4)注入第五量的润滑脂的过程，直至润滑脂传感器(2)检测到所泵出的润滑脂的润滑脂状况良好为止。此外，在判断为润滑脂状况良好的情况下，控制器(3)使润滑脂注入模块(4)注入等于或大于第一量的第二量的润滑脂。
注意，由于在注入润滑脂时润滑脂可能存在一定程度的挥发，因此在更换润滑脂时，所注入的润滑脂的量通常大于所泵出的润滑脂的量，以确保轴承(6)中的总润滑脂量适当。
以上列举了在判断为润滑脂状况不好的情况下更换轴承(6)中的润滑脂的两种具体方式，但是本发明实施例不限于此，并且可以采用其它任何方式来更换轴承(6)中的润滑脂，只要使得更换轴承(6)中的至少一部分润滑脂之后润滑脂传感器(2)所检测到的与润滑脂泵出模块(1)所泵出的润滑脂相对应的信息满足预定条件即可。
需要说明的是，以上的具体控制方法可以类似地应用于对多个轴承(一组轴承或多组轴承)的再润滑的控制。
通过采用根据本发明实施例的轴承润滑系统的控制方法，可以根据轴承中的实际的润滑脂状况来更换润滑脂，从而能够有效改善轴承的润滑脂状况并对轴承进行适当润滑。此外，通过如上所述的控制方法，可以保持轴承中的润滑脂量稳定，并且可以避免润滑脂泄漏、密封失效、润滑不足和过度润滑。由此，轴承的使用寿命也将得到改善，并且润滑脂成本将降低。
与已知的现有技术相比，本发明实施例的轴承润滑系统具有如下优点。
1)通过设置润滑脂泵出模块，可以使轴承中的流动性差的润滑脂从轴承泵出，由此可以避免由于旧润滑脂难以挤出而导致的润滑脂泄漏。
2)通过将润滑脂传感器设置在润滑脂泵出模块中或其附近，并检测润滑脂泵出模块所泵出的少量润滑脂的润滑脂状况，可以有效地检测实际在轴承中工作的润滑脂的状况。
3)通过根据润滑脂传感器所检测到的润滑脂状况来连动地控制润滑脂泵出模块和润滑脂注入模块，可以根据实际润滑脂状况来调整再润滑循环时间，从而智能地控制对轴承的再润滑，由此在一定程度上避免润滑不足、过 度润滑或润滑脂浪费。此外，由于可以避免轴承中的润滑脂过多，因此可以避免轴承密封元件失效。
4)可以有效监控实际上的润滑状况。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种轴承润滑系统，其特征在于，包括：
    轴承(6)；
    润滑脂泵出模块(1)，用于从所述轴承(6)经由润滑脂输送管(8)泵出润滑脂；
    润滑脂传感器(2)，用于检测与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；
    润滑脂注入模块(4)，用于经由所述润滑脂输送管(8)向所述轴承(6)注入润滑脂；以及
    控制器(3)，用于根据所述润滑脂传感器(2)所检测到的信息，对所述润滑脂泵出模块(1)所进行的润滑脂泵出和所述润滑脂注入模块(4)所进行的润滑脂注入进行控制。
  2. 根据权利要求1所述的轴承润滑系统，其特征在于，所述润滑脂传感器(2)设置在所述润滑脂输送管(8)中，并靠近所述润滑脂泵出模块(1)设置。
  3. 根据权利要求1所述的轴承润滑系统，其特征在于，所述润滑脂传感器(2)设置在所述润滑脂泵出模块(1)中。
  4. 根据权利要求1所述的轴承润滑系统，其特征在于，所述控制器(3)根据所述润滑脂传感器(2)所检测到的信息，反馈控制所述润滑脂泵出模块(1)所泵出的润滑脂的量和所述润滑脂注入模块(4)所注入的润滑脂的量，以使得所述润滑脂注入模块(4)所注入的润滑脂的量等于或大于所述润滑脂泵出模块(1)所泵出的润滑脂的量。
  5. 根据权利要求4所述的轴承润滑系统，其特征在于，
    所述润滑脂泵出模块(1)周期性地泵出第一量的润滑脂，
    所述润滑脂传感器(2)检测与所述第一量的润滑脂相对应的信息，
    其中，在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息满足预定条件的情况下，所述控制器(3)根据该信息反馈控制所述润滑脂注入模块(4)，以使所述润滑脂注入模块(4)注入等于或大于所述第一量的第二量的润滑脂，以及
    在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息不满足所述预定条件的情况下，所述控制器(3)根据该信息反馈控制所述润滑脂泵出模块(1)和所述润滑脂注入模块(4)，以更换所述轴承(6)中的至少一部分润滑脂，从而使得所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息满足所述预定条件。
  6. 根据权利要求5所述的轴承润滑系统，其特征在于，所述润滑脂泵出模块(1)泵出所述第一量的润滑脂的周期短于预设的润滑脂更换循环时间。
  7. 根据权利要求1所述的轴承润滑系统，其特征在于，
    所述轴承润滑系统包括多个轴承(6)，
    所述轴承润滑系统还包括切换模块，所述切换模块用于在所述多个轴承(6)之间进行切换，以及
    所述控制器(3)根据所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)从所述切换模块切换至的轴承(6)所泵出的润滑脂有关的信息，对所述润滑脂泵出模块(1)所进行的从该轴承(6)的润滑脂泵出和所述润滑脂注入模块(4)所进行的向该轴承(6)的润滑脂注入进行控制。
  8. 根据权利要求1至7中任一项所述的轴承润滑系统，其特征在于，还包括发送模块，所述发送模块用于将所述润滑脂传感器(2)所检测到的信息发送至云端。
  9. 根据权利要求1至7中任一项所述的轴承润滑系统，其特征在于，还包括显示模块，所述显示模块用于显示所述润滑脂传感器(2)所检测到的信息。
  10. 根据权利要求1至7中任一项所述的轴承润滑系统，其特征在于，所述轴承包括圆锥滚子轴承、圆柱滚子轴承、滚珠轴承、球面滚子轴承和滑动轴承其中至少之一。
  11. 根据权利要求1至7中任一项所述的轴承润滑系统，其特征在于，与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息包括该润滑脂的温度、该润滑脂的含水量、该润滑脂的金属颗粒物含量以及该润滑脂的老化程度其中至少之一。
  12. 一种轴承润滑系统的控制方法，其特征在于，所述轴承润滑系统包括：轴承(6)；润滑脂泵出模块(1)，用于从所述轴承(6)经由润滑脂输送管(8)泵出润滑脂；润滑脂传感器(2)，用于检测与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；以及润滑脂注入模块(4)，用于经由所述润滑脂输送管(8)向所述轴承(6)注入润滑脂，所述控制方法包括：
    检测步骤，用于使所述润滑脂传感器(2)检测与所述润滑脂泵出模块(1)所泵出的润滑脂相对应的信息；以及
    控制步骤，用于根据所述润滑脂传感器(2)所检测到的信息，对所述润滑脂泵出模块(1)所进行的润滑脂泵出和所述润滑脂注入模块(4)所进行的润滑脂注入进行控制。
  13. 根据权利要求12所述的控制方法，其特征在于，在所述控制步骤中，包括：
    根据所述润滑脂传感器(2)所检测到的信息，反馈控制所述润滑脂泵出模块(1)所泵出的润滑脂的量和所述润滑脂注入模块(4)所注入的润滑脂的量，以使得所述润滑脂注入模块(4)所注入的润滑脂的量等于或大于所述润滑脂泵出模块(1)所泵出的润滑脂的量。
  14. 根据权利要求13所述的控制方法，其特征在于，
    使所述润滑脂泵出模块(1)周期性地泵出第一量的润滑脂，
    使所述润滑脂传感器(2)检测与所述第一量的润滑脂相对应的信息，
    其中，在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息满足预定条件的情况下，在所述控制步骤中，根据该信息反馈控制所述润滑脂注入模块(4)，以使所述润滑脂注入模块(4)注入等于或大于所述第一量的第二量的润滑脂，以及
    在所述润滑脂传感器(2)所检测到的与所述第一量的润滑脂相对应的信息不满足所述预定条件的情况下，在所述控制步骤中，根据该信息反馈控制所述润滑脂泵出模块(1)和所述润滑脂注入模块(4)，以更换所述轴承(6)中的至少一部分润滑脂，从而使得所述润滑脂传感器(2)所检测到的与所述润滑脂 泵出模块(1)所泵出的润滑脂相对应的信息满足所述预定条件。
  15. 根据权利要求12所述的控制方法，其特征在于，
    所述轴承润滑系统包括多个轴承(6)，
    所述轴承润滑系统还包括切换模块，所述切换模块用于在所述多个轴承(6)之间进行切换，
    在所述控制步骤中，包括：
    根据所述润滑脂传感器(2)所检测到的与所述润滑脂泵出模块(1)从所述切换模块切换至的轴承(6)所泵出的润滑脂有关的信息，对所述润滑脂泵出模块(1)所进行的从该轴承(6)的润滑脂泵出和所述润滑脂注入模块(4)所进行的向该轴承(6)的润滑脂注入进行控制。
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