Grease lubrication test device for bearing of rotating equipment

Abstract

The invention belongs to the technical field of equipment maintenance, and particularly discloses a rotating equipment bearing grease lubrication test device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a pair of vertical plates, a shell is inserted between the vertical plates through an insertion shaft and rotationally arranged between the vertical plates, a first motor is fixedly installed on the outer wall of one vertical plate, and a second motor is fixedly installed on the outer wall of the other vertical plate. The output end of the first motor is fixedly connected with a driving belt wheel, the outer wall of one vertical plate is rotatably connected with a first matching gear in an inserted mode through a shaft, and the first motor is connected with a second matching gear through the driving belt wheel, a driven belt wheel, the first matching gear and the second matching gear after being powered on; the output torque can drive the shell and the testing mechanism installed in the shell to turn over along the shaft, then the specific angle of the shell and the testing mechanism can be adjusted to simulate use scenes at various installation angles, the turning angle can be visually judged through the scale hole in the process, meanwhile, the power-losing electromagnet can forcibly support the shell when the shell is idle, and the structure is simple and practical.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of equipment maintenance, and particularly relates to a bearing grease lubrication test device for rotating equipment. BACKGROUND

[0002] The rotating equipment bearing temperature of closed cooling water pumps, safety service water pumps, condensate water pumps and seawater circulating pumps is prone to high and severe fluctuations. This phenomenon is strongly associated with the amount of lubricating grease added in the bearing chamber. If the amount of lubricating grease added is too much, it will cause poor heat dissipation of the bearing, accelerate the overheating failure of the lubricating grease and lose the lubricating performance, resulting in the final damage of the bearing. If the amount of lubricating grease added is too little, it will cause the bearing rolling body and cage, inner and outer rings to fail to establish an oil film, resulting in direct metal friction and rapid damage of the bearing. However, due to the fully closed structure of the bearing chamber, the working state of the bearing rolling body and the micro-distribution of the lubricating grease inside the bearing chamber cannot be directly displayed, which makes it impossible to accurately judge the lubrication state of the bearing, so that accurate and effective treatment measures cannot be developed, becoming a professional and technical blind area that needs to be overcome in equipment reliability management.

[0003] After searching, the Chinese patent CN118275502A proposes a nuclear power plant rotating equipment bearing grease lubrication test device, which includes a support system and a power system, a loading system and a lubrication system installed on the support system. The detection system is installed on the lubrication system, and the lubrication system includes a rotating equipment bearing. The power system provides driving force for the rotating equipment bearing, and the loading system applies radial load to the rotating equipment bearing. The detection system judges the lubricating effect of the amount of lubricating grease corresponding to the rotating equipment bearing. The nuclear power plant rotating equipment bearing grease lubrication test device of the application completely simulates the actual working condition environment of closed cooling water pumps and safety service water pumps for test verification or troubleshooting analysis, reduces the blind disassembly workload of key sensitive equipment precision parts and the introduction of unknown safety risks of the unit.

[0004] Although the above-mentioned prior art can completely simulate the actual working condition environment of closed cooling water pumps and safety service water pumps for test verification or troubleshooting analysis, reduce the blind disassembly workload of key sensitive equipment precision parts and the introduction of unknown safety risks of the unit, but there are still the following defects in the above-mentioned prior art: In the process of actual use, the bearing may be installed vertically and horizontally, or may be installed at other inclined angles. The lubricating grease inside will also accumulate under the influence of gravity. The present technology cannot simulate the influence of the lubricating grease on the bearing in the inclined state. SUMMARY

[0005] The purpose of the application is to solve the shortcomings in the prior art and provide a rotating equipment bearing grease lubrication test device.

[0006] In order to achieve the above object, the application provides a rotating equipment bearing grease lubrication test device, which comprises a bottom plate, a pair of vertical plates are fixedly connected to the top of the bottom plate, a shell is rotatably arranged between the vertical plates through an inserted shaft, a first motor is fixedly installed on the outer wall of one of the vertical plates, a driving pulley is fixedly connected to the output end of the first motor, a first matching gear is rotatably connected to the outer wall of one of the vertical plates through an inserted shaft, a driven pulley is fixedly connected to one side of the first matching gear, and the driven pulley and the driving pulley are connected through a belt, a second matching gear is fixedly connected to one side of the outer wall of the shell, and the second matching gear is engaged with the first matching gear. A test mechanism is arranged in the shell, and the test mechanism is used for testing bearing grease.

[0007] In the above technical scheme, further, a rotating plate is fixedly connected to the other side of the outer wall of the shell, a circular ring is fixedly connected to the outer wall edge of the rotating plate, scale holes are formed in the outer wall of the circular ring, and lightweight holes are formed in the outer wall of the rotating plate.

[0008] In the above technical scheme, further, a magnetic matching plate is fixedly connected to the outer wall of the rotating plate, a loss-of-field electromagnet is fixedly installed on the outer wall of the other vertical plate, and the loss-of-field electromagnet is magnetically matched with the magnetic matching plate. In the above technical scheme, further, the test mechanism comprises a second motor fixedly installed in the shell, a driving shaft is fixedly connected to the output end of the second motor, and the other end of the driving shaft is rotatably connected to one side of the inner wall of the shell, a first fixing seat is fixedly connected to the outer wall of the bottom plate, the driving shaft is rotatably connected to and inserted into the other side of the outer wall of the first fixing seat, a torque sensor is fixedly installed on the inner wall of the first fixing seat, four second fixing seats are fixedly connected to the inner wall of the bottom plate, the driving shaft is rotatably connected to and inserted into the other side of one of the second fixing seats, a driven shaft is rotatably connected and inserted between the other three second fixing seats and one side of the inner wall of the shell, a first driven gear, a second driven gear and a third driven gear are fixedly connected to the outer walls of the three driven shafts, respectively, the first driven gear and the second driven gear are engaged with each other, a driving gear is fixedly connected to the outer wall of the driving shaft, and the driving gear is engaged with the second driven gear and the third driven gear, respectively, a fixed chamber is arranged on the outer walls of the driving shaft and the driven shaft, an installation seat is fixedly connected to the bottom of the fixed chamber, a bearing is fixedly installed in the fixed chamber, and the driving shaft and the driven shaft are fixedly connected and inserted into the other side of the bearing. A detection assembly is fixedly installed on the top of the fixed chamber. In the technical scheme, further, the third driven gear is larger than the driving gear, the third driven gear is larger than the second driven gear, and the second driven gear is larger than the first driven gear. In the technical scheme, further, the fixed chamber is externally provided with a temperature control chamber, the temperature control chamber is fixedly installed on the inner wall of the shell, and the driven shaft and the driving shaft are both rotationally connected and inserted into the outer wall of the temperature control chamber.

[0009] In the technical scheme, further, the detection assembly comprises a temperature sensor, a vibration sensor and a mass sensor.

[0010] Compared with the prior art, the present application has the following beneficial effects: After the first motor is powered on, the torque output by the first motor can drive the shell and the test mechanism installed in the shell to rotate along the shaft, so as to adjust the specific angle to simulate various installation angles, and the idle electromagnet can forcibly support the shell when the shell is idle. The second motor can synchronously drive multiple bearings to rotate for various tests through the connection of the first driven gear, the first driven gear, the driving gear and the third driven gear, different types of lubricating grease are injected into the interior of the bearings, the second motor is then driven by frequency conversion in stages, so that the first driven gear to the third driven gear gradually reaches a certain rotation rate, thereby simulating the rotation of the bearings under different lubricating greases, the same type of lubricating grease is injected into the interior of the bearings, thereby simulating the use of the same lubricating grease under different rotation rates, the temperature is adjusted by the temperature control chamber, thereby simulating the use of the bearings under different temperatures, and the use of the same lubricating grease under different rotation rates and the use of different lubricating greases under the same rotation rate can be simulated at one time through the design, and the test efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A first perspective structural schematic view of a bearing grease lubrication test device for a rotating equipment is provided. Figure 2 A second perspective structural schematic view of a bearing grease lubrication test device for a rotating equipment is provided. Figure 3 A test mechanism structural schematic view of a bearing grease lubrication test device for a rotating equipment is provided. Figure 4 A shell rotation transmission structural schematic view of a bearing grease lubrication test device for a rotating equipment is provided. Figure 5It is a kind of rotating equipment bearing grease lubrication test device shell internal structure schematic view proposed in the application.

[0012] In the figure: 1, the base plate; 2, the vertical plate; 3, the test mechanism; 4, the rotating plate; 5, the lightweight hole; 6, the magnetic matching plate; 7, the power-off electromagnet; 8, the ring; 9, the scale hole; 10, the shell; 11, the first motor; 12, the driving pulley; 13, the driven pulley; 14, the first matching gear; 15, the second matching gear; 16, the temperature control chamber; 17, the second motor; 18, the first fixed seat; 19, the torque sensor; 20, the second fixed seat; 21, the driven shaft; 22, the first driven gear; 23, the second driven gear; 24, the driving gear; 25, the third driven gear; 26, the mounting seat; 27, the fixed chamber; 28, the bearing; 29, the detection assembly; 30, the driving shaft. DETAILED DESCRIPTION In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0013] As Figures 1-5 shown in a kind of rotating equipment bearing grease lubrication test device, including base plate 1, the top of base plate 1 is fixedly connected with a pair of vertical plate 2, vertical plate 2 is inserted and rotationally arranged with shell 10 between by inserting shaft, the outer wall of one vertical plate 2 is fixedly installed with first motor 11, the output end of first motor 11 is fixedly connected with driving pulley 12, the outer wall of one vertical plate 2 is inserted and rotationally connected with first matching gear 14 by shaft, one side of first matching gear 14 is fixedly connected with driven pulley 13, and driven pulley 13 and driving pulley 12 are tensionedly connected between by belt, one side of the outer wall of shell 10 is fixedly connected with second matching gear 15, and second matching gear 15 is engaged between first matching gear 14, the inside of shell 10 is provided with test mechanism 3, test mechanism 3 is used to test bearing grease, first motor 11 is energized to drive driving pulley 12 to rotate, driven pulley 13 and first matching gear 14 are synchronously rotated by the connection of belt, first matching gear 14 and second matching gear 15 are engaged, so finally the whole shell 10 can be driven to rotate along the shaft, and the orientation and position of test mechanism 3 are adjusted, various angle installation modes that bearing can present in the process of actual use can be successfully simulated by this design, and the structure is simple and convenient to adjust.

[0014] A rotating plate 4 is fixedly connected to the other side of the outer wall of the housing 10. A ring 8 is fixedly connected to the outer edge of the rotating plate 4. The outer wall of the ring 8 is provided with evenly distributed scale holes 9. The outer wall of the rotating plate 4 is provided with evenly distributed lightweight holes 5. The rotating plate 4 rotates synchronously with the housing 10, and the corresponding scale holes 9 also rotate. The user can intuitively judge the angle at this time by the change of the scale holes 9, which can help the user record the relevant test data at what angle.

[0015] A magnetic mating plate 6 is fixedly connected to the outer wall of the rotating plate 4, and a de-energized electromagnet 7 is fixedly installed on the outer wall of the other vertical plate 2. The de-energized electromagnet 7 and the magnetic mating plate 6 are magnetically mated. When the de-energized electromagnet 7 is not energized, it has its own magnetic force and can attract the magnetic mating plate 6. It can cooperate with the first mating gear 14 and the second mating gear 15 and share the pressure it bears, thereby further improving the support capacity of the housing 10. When the de-energized electromagnet 7 is energized, its magnetic force disappears. At this time, the first motor 11 can drive the housing 10 to rotate to adjust its angle.

[0016] After the first motor 11 is powered on, it is connected by the active pulley 12, the driven pulley 13, the first mating gear 14 and the second mating gear 15. The torque it outputs can drive the housing 10 and the test mechanism 3 installed inside to rotate along the axis, thereby adjusting its specific angle to simulate various usage scenarios at different installation angles. During the process, the rotation angle can be intuitively judged through the scale hole 9. At the same time, when idle, the de-energized electromagnet 7 can forcibly support the housing 10. The structure is simple and practical. The testing mechanism 3 includes a second motor 17 fixedly installed inside the housing 10. The output end of the second motor 17 is fixedly connected to a drive shaft 30, and the other end of the drive shaft 30 is inserted into and rotatably connected to one side of the inner wall of the housing 10. A first fixing seat 18 is fixedly connected to the outer wall of the base plate 1, and the drive shaft 30 is rotatably connected to and inserted into the other side of the outer wall of the first fixing seat 18. A torque sensor 19 is fixedly installed on the inner wall of the first fixing seat 18. Four second fixing seats 20 are fixedly connected to the inner wall of the base plate 1, and the drive shaft 30 is rotatably connected to and inserted into the other side of one of the second fixing seats 20. The other three second fixing seats 20 are inserted between themselves and one side of the inner wall of the housing 10. The drive shaft 30 is rotatably connected to a driven shaft 21. A first driven gear 22, a second driven gear 23, and a third driven gear 25 are fixedly connected to the outer walls of the three driven shafts 21, and the first driven gear 22 and the second driven gear 23 mesh with each other. A drive gear 24 is fixedly connected to the outer wall of the drive shaft 30, and the drive gear 24 meshes with the second driven gear 23 and the third driven gear 25, respectively. A fixing chamber 27 is provided on the outer walls of both the driven shaft 21 and the drive shaft 30. A mounting base 26 is fixedly connected to the bottom of the fixing chamber 27. A bearing 28 is fixedly installed inside the fixing chamber 27, and the drive shaft 30 and the driven shaft 21 are both fixedly connected and inserted into the other side of the bearing 28. A detection component 29 is fixedly installed on the top of the fixed chamber 27. After the second motor 17 is powered on, it can drive the drive shaft 30 to rotate. Through the connection relationship of the first driven gear 22, the second driven gear 23, the drive gear 24 and the third driven gear 25, it can synchronously drive the three driven shafts 21 to rotate. The driven shafts 21 and the drive shaft 30 respectively drive the bearings 28 inside the fixed chamber 27 to rotate. During the process, the detection component 29 detects the internal condition of the bearings 28, so as to simulate the test of the bearing grease. At the same time, different greases can be injected for multiple tests. By using the frequency converter to drive the second motor 17 and working with the torque sensor 19, the experimental data at the specific rotation speed can be obtained. It should be noted that the driven shafts 21 and the drive shaft 30 tightly drive the bearings 28 to rotate, so the second motor 17 has enough spare force to drive all the bearings 28 to rotate. The shape of the third driven gear 25 is larger than that of the driving gear 24. The shape of the third driven gear 25 is larger than that of the second driven gear 23. The shape of the second driven gear 23 is larger than that of the first driven gear 22. During the synchronous rotation of the third driven gear 25, the second driven gear 23 and the first driven gear 22 driven by the driving gear 24, the difference in gear ratio between them causes them to rotate at different speeds. This design allows us to know the specific usage at different rotation speeds even when the same type of grease is injected into the interior of all bearings 28. A temperature control chamber 16 is provided outside the fixed chamber 27. The temperature control chamber 16 is fixedly installed on the inner wall of the housing 10, and the driven shaft 21 and the driving shaft 30 are rotatably connected and inserted into the outer walls of the temperature control chamber 16. This design can simulate the use scenarios of the bearing 28 at different temperatures.

[0017] The detection component 29 includes a temperature sensor, a vibration sensor, and a mass sensor, which enables the detection of grease inside the bearing.

[0018] Through the connection of the first driven gear 22, the driving gear 24, and the third driven gear 25, the second motor 17 can synchronously drive multiple bearings 28 to rotate for various tests. Different types of grease are injected into the interior of the bearings 28, and then the second motor 17 is driven by a staged frequency converter, so that the first driven gear 22 to the third driven gear 25 gradually reach a certain rotation speed, thereby simulating the rotation of the bearings 28 under different greases. Injecting the same type of grease into the interior of the bearings 28 can simulate the use of the same grease at different rotation speeds. By adjusting the temperature through the temperature control chamber 16, the use of the bearings 28 at different temperatures can be simulated. This design can simulate the use of the same grease at different speeds and different greases at the same speed in one test, resulting in high testing efficiency.

[0019] Working principle: After the first motor 11 is powered on, it is connected by the active pulley 12, the driven pulley 13, the first mating gear 14 and the second mating gear 15. The torque output by the motor can drive the housing 10 and the test mechanism 3 installed inside to rotate along the axis, thereby adjusting the specific angle to simulate various installation angle usage scenarios. During the process, the rotation angle can be intuitively judged through the scale hole 9. At the same time, when idle, the de-energized electromagnet 7 can forcibly support the housing 10. The structure is simple and practical. Through the connection of the first driven gear 22, the driving gear 24, and the third driven gear 25, the second motor 17 can synchronously drive multiple bearings 28 to rotate for various tests. Different types of grease are injected into the interior of the bearings 28, and then the second motor 17 is driven by a staged frequency converter, so that the first driven gear 22 to the third driven gear 25 gradually reach a certain rotation speed, thereby simulating the rotation of the bearings 28 under different greases. Injecting the same type of grease into the interior of the bearings 28 can simulate the use of the same grease at different rotation speeds. By adjusting the temperature through the temperature control chamber 16, the use of the bearings 28 at different temperatures can be simulated. This design can simulate the use of the same grease at different speeds and different greases at the same speed in one test, resulting in high testing efficiency.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A rotary equipment bearing grease lubrication test device comprising a base plate (1), characterized in that, The top of the bottom plate (1) is fixedly connected with a pair of vertical plates (2), the shell (10) is rotatably arranged between the vertical plates (2) by means of an inserting shaft, a first motor (11) is fixedly installed on the outer wall of one of the vertical plates (2), the output end of the first motor (11) is fixedly connected with a driving pulley (12), the outer wall of one of the vertical plates (2) is rotatably connected with a first matching gear (14) by means of an axle, the side of the first matching gear (14) is fixedly connected with a driven pulley (13), the driven pulley (13) and the driving pulley (12) are connected by means of a belt, one side of the outer wall of the shell (10) is fixedly connected with a second matching gear (15), and the second matching gear (15) is engaged with the first matching gear (14). The inside of the shell (10) is provided with a testing mechanism (3), and the testing mechanism (3) is used for testing bearing grease.

2. A rotary equipment bearing grease lubrication test apparatus according to claim 1, wherein The other side of the outer wall of the shell (10) is fixedly connected with a rotating plate (4), the outer wall edge of the rotating plate (4) is fixedly connected with a circular ring (8), the outer wall of the circular ring (8) is provided with uniformly distributed scale holes (9), and the outer wall of the rotating plate (4) is provided with uniformly distributed light weight holes (5).

3. A rotary equipment bearing grease lubrication test apparatus according to claim 2, wherein The outer wall of the rotating plate (4) is fixedly connected with a magnetic matching plate (6), the other vertical plate (2) is fixedly installed with a loss-of-field electromagnet (7), and the loss-of-field electromagnet (7) is magnetically matched with the magnetic matching plate (6).

4. A rotary equipment bearing grease lubrication test apparatus according to claim 1 wherein, The testing mechanism (3) comprises a second motor (17) fixedly installed inside the shell (10), an output end of the second motor (17) is fixedly connected with a driving shaft (30), and the other end of the driving shaft (30) is inserted and rotationally connected on one side of the inner wall of the shell (10), a first fixing seat (18) is fixedly connected on the outer wall of the bottom plate (1), and the driving shaft (30) is rotationally connected and inserted to the other side of the outer wall of the first fixing seat (18), a torque sensor (19) is fixedly installed on the inner wall of the first fixing seat (18), four second fixing seats (20) are fixedly connected on the inner wall of the bottom plate (1), and the driving shaft (30) is rotationally connected and inserted to the other side of one of the second fixing seats (20), a driven shaft (21) is inserted and rotationally connected between the other three second fixing seats (20) and one side of the inner wall of the shell (10), a first driven gear (22), a second driven gear (23) and a third driven gear (25) are fixedly connected on the outer walls of the three driven shafts (21) respectively, the first driven gear (22) and the second driven gear (23) are engaged with each other, a driving gear (24) is fixedly connected on the outer wall of the driving shaft (30), and the driving gear (24) is engaged with the second driven gear (23) and the third driven gear (25) respectively, fixed chambers (27) are arranged on the outer walls of the driven shaft (21) and the driving shaft (30), mounting seats (26) are fixedly connected on the bottoms of the fixed chambers (27), bearings (28) are fixedly installed in the fixed chambers (27), and the driving shaft (30) and the driven shaft (21) are fixedly connected and inserted to the other sides of the bearings (28). Detection assemblies (29) are fixedly installed on the tops of the fixed chambers (27).

5. A rotary equipment bearing grease lubrication test apparatus according to claim 4 wherein, The third driven gear (25) is larger than the driving gear (24) in shape, the third driven gear (25) is larger than the second driven gear (23) in shape, and the second driven gear (23) is larger than the first driven gear (22) in shape.

6. A rotary equipment bearing grease lubrication test apparatus according to claim 4 wherein, The fixed chambers (27) are provided with temperature control chambers (16) outside, the temperature control chambers (16) are fixedly installed on the inner wall of the shell (10), and the driven shaft (21) and the driving shaft (30) are rotationally connected and inserted to the outer walls of the temperature control chambers (16).

7. A rotary equipment bearing grease lubrication test apparatus according to claim 4 wherein, The detection assemblies (29) comprise temperature sensors, vibration sensors and mass sensors.

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