Thin oil lubrication bearing body based on oil flinger

Abstract

The invention relates to the technical field of thin oil lubricated bearing bodies, and discloses a thin oil lubricated bearing body based on an oil flinger, the thin oil lubricated bearing body comprises an outer shell, an outer bearing is mounted on the inner wall of the outer shell, an inner bearing is arranged on the right side of the outer bearing, and shaft bodies are mounted on the inner walls of the inner bearing and the outer bearing; a tooth-shaped oil flinger is installed at the tail end of the shaft body, and an installation groove is formed in the inner wall of the outer shell. Through the arrangement of the oil distribution block and the outer shell, the groove body and the connecting groove are formed in the oil distribution block and the outer shell correspondingly, lubricating oil flows to the inner side bearing through the groove body and the connecting groove through the tooth-shaped oil flinger, the inner side bearing can be lubricated, and therefore the problem that the bearing close to the outer side in equipment can be lubricated through the oil flinger is solved; the problems that the lubricating effect of the inner side bearing cannot achieve the lubricating effect of the outer side bearing, and the inner side bearing is burnt out after long-time operation are solved, meanwhile, the oil distribution block and the outer shell can be detached, and cleaning and machining of the oil distribution block and the outer shell are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of thin oil lubricated bearing bodies, in particular to a thin oil lubricated bearing body based on an oil throwing plate. Background Art

[0002] The purpose of bearing lubrication is to ensure the normal operation of the bearing, avoid direct contact between the raceway and the rolling element surface, reduce friction and wear inside the bearing, extend the service life of the bearing, enhance the performance of the bearing, and prevent rust and corrosion caused by foreign matter invading the bearing. The existing pump shaft is lubricated with thin oil. The principle of thin oil lubrication is based on the low viscosity of thin oil. Thin oil has a low viscosity and can effectively penetrate into the tiny gaps and clearances of mechanical parts to form a lubricating film. This lubricating film can prevent the contact between the metal surface bracket, reduce friction, and reduce wear. At the same time, thin oil can also effectively take away the heat generated during friction to prevent equipment overheating.

[0003] In order to improve the rotation accuracy and stability of the machine, reduce the wear and friction of the bearings, and reduce noise and vibration, two bearings are used in the equipment. The bearing close to the outside can be lubricated by an oil-slinging pan, while the lubrication effect of the inner bearing cannot reach that of the outer bearing. Long-term operation will cause the inner bearing to burn out. Since the bearing body will generate a lot of heat due to long-term operation, the thin oil will be thrown onto the shaft by the oil-slinging pan to take away the heat generated by friction. After long-term use of the thin oil, the iron cuttings generated by the friction between the components will be mixed in the thin oil, resulting in poor fluidity of the thin oil, and the thin oil will become thick. At this time, the thin oil cannot enter the bearing body better. Failure to replace the thin oil for a long time will also cause the bearing to burn out. Since the running time and load capacity of each equipment are different, the degree of change of the thin oil is also different. Therefore, it is necessary to formulate the thin oil replacement time according to the operation situation of the equipment, which will increase the workload. Irregular replacement of the thin oil will lead to waste of thin oil and increase the cost of maintenance. Summary of the invention

[0004] The present invention provides a thin oil lubricated bearing body based on an oil slinger plate, which solves the problems raised by the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a thin oil lubrication bearing body based on an oil-slinging plate, comprising an outer shell, an outer bearing is installed on the inner wall of the outer shell, an inner bearing is provided on the right side of the outer bearing, a shaft body is installed on the inner walls of the inner bearing and the outer bearing, a toothed oil-slinging plate is installed on the tail end of the shaft body, an installation groove is provided on the inner wall of the outer shell, an oil separator block is provided on the inner wall of the installation groove, a connecting groove is provided on the top of the inner cavity of the outer shell, a groove body is provided on the outer edge of the top of the oil separator block, a detection channel is provided in the inner cavity of the oil separator block, and a viscosity detection mechanism is installed on the outer wall of the outer shell.

[0006] As a preferred technical solution of the present invention, the top of the oil inlet of the tank body is an upper inclined groove, the top of the oil inlet of the tank body is a lower inclined groove, and the upper inclined groove corresponds to the toothed oil slinger plate.

[0007] As a preferred technical solution of the present invention, the groove body and the connecting groove are inclined surfaces, and the groove body and the connecting groove are inclined toward the inner bearing direction.

[0008] As a preferred technical solution of the present invention, threaded holes are provided at the bottom of the installation groove and the bottom of the oil separator block, and fixing bolts are threadedly connected to the inner walls of the threaded holes.

[0009] As a preferred technical solution of the present invention, a head sealing cover is installed on the outer edge of the right side of the outer shell, and a tail sealing cover is installed on the outer edge of the left side of the outer shell. The distance between the head sealing cover and the inner bearing is 2 cm, and the distance between the head sealing cover and the inner bearing is connected with the connecting groove.

[0010] As a preferred technical solution of the present invention, an oil groove is provided at the bottom of the inner cavity of the outer shell, and the oil groove is located below the inner bearing and the outer bearing.

[0011] As a preferred technical solution of the present invention, the viscosity detection mechanism includes an oil-passing shell, the inner cavity of the oil-passing shell is provided with a transverse through groove, the inner cavity of the oil-passing shell is provided with an L through groove, and the L through groove is connected to the transverse through groove.

[0012] As a preferred technical solution of the present invention, the transverse through groove is in a wave shape, and the L-shaped through groove is connected to the outer shell.

[0013] As a preferred technical solution of the present invention, a transverse plate is fixedly mounted on the inner wall of the L-shaped slot, a drain groove is formed on the top of the transverse plate, and a pipe is fixedly mounted on the bottom of the transverse plate, and the pipe corresponds to the drain groove.

[0014] As a preferred technical solution of the present invention, a circular shell is fixedly assembled on the outer edge of the oil-passing shell, a connecting rod is movably connected to the inner wall of the circular shell, a rotating impeller is fixedly sleeved on the inner wall of the connecting rod, and a detection block is fixedly assembled on the outer edge of the connecting rod.

[0015] As a preferred technical solution of the present invention, a mounting bracket is fixedly installed on the outer edge of the oil-passing shell, a speed detection head is fixedly installed on the top of the mounting bracket, a display module is fixedly installed on the top of the oil-passing shell, the display module is electrically connected to the speed detection head, and the end of the connecting rod away from the circular shell is movably connected to the mounting bracket.

[0016] The present invention has the following beneficial effects: 1. The thin oil lubricated bearing body based on the oil-slinging plate, through the arrangement of the oil separator block and the outer shell, respectively opens a groove body and a connecting groove on the oil separator block and the outer shell, and the lubricating oil flows to the inner bearing through the groove body and the connecting groove through the toothed oil-slinging plate, so that the inner bearing can be lubricated, thereby solving the problem that the bearing close to the outer side of the equipment can be lubricated by the oil-slinging plate, while the lubrication effect of the inner bearing cannot reach the lubrication effect of the outer bearing, and long-term operation will cause the inner bearing to burn out. At the same time, the oil separator block and the outer shell can be disassembled, which is convenient for cleaning and processing of the oil separator block and the outer shell.

[0017] 2. The thin oil lubrication bearing body based on the oil-slinging plate has a detection channel opened on one side of the groove body on the oil separator block. The detection channel is connected to the consistency detection mechanism. The toothed oil-slinging plate simultaneously throws the lubricating oil into the detection channel. The lubricating oil is retained through the transverse groove, the L groove and the pipeline. The flow of the lubricating oil drives the rotating impeller, the connecting rod and the detection block to rotate. When the consistency of the lubricating oil is low, the rotating impeller, the connecting rod and the detection block rotate fast. When the consistency of the lubricating oil is high, the rotating impeller, the connecting rod and the detection block rotate slowly. The speed detected by the speed detection head is transmitted to the display module for display. When the value gradually becomes smaller, it means that the viscosity of the lubricating oil becomes thicker, thereby solving the problem that the thick thin oil cannot enter the bearing body better. Failure to replace the thin oil for a long time will cause the bearing to burn out. Since the operating time and load capacity of each equipment are different, the degree of change of the thin oil is also different. Therefore, it is necessary to formulate the thin oil replacement time according to the equipment operation situation, which will lead to an increase in workload. Irregular replacement of the thin oil will lead to waste of thin oil and increase the cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front-end three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the rear end of the present invention; Figure 3 This is a schematic diagram of the structure of the viscosity detection mechanism of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the bearing position of the present invention; Figure 5 For the present invention Figure 4 A is an enlarged structural diagram; Figure 6 This is a schematic diagram of the structure of the viscosity detection mechanism of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in FIG. Figure 8 This is a schematic diagram of the connection structure between the oil separation block and the outer shell of the present invention; Fig. 9 This is a schematic diagram of the outer shell structure of the present invention; Fig.10 It is a schematic diagram of the oil separation block structure of the present invention.

[0019] In the figure: 1. outer shell; 2. outer bearing; 3. inner bearing; 4. shaft; 5. toothed oil slinger; 6. mounting groove; 7. oil separator; 8. threaded hole; 9. fixing bolt; 10. viscosity detection mechanism; 11. head sealing cover; 12. tail sealing cover; 61. Connecting groove; 62. Oil groove; 71. tank body; 72. detection channel; 711, upper chute; 712, lower chute; 1001, oil-passing shell; 1002, transverse through groove; 1003, L through groove; 1004, horizontal plate; 1005, leakage groove; 1006, pipeline; 1007, circular shell; 1008, connecting rod; 1009, rotating impeller; 1010, detection block; 1011, mounting bracket; 1012, speed detection head; 1013, display module. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 10 A thin oil lubricated bearing body based on an oil-slinging plate comprises an outer shell 1, an outer bearing 2 is installed on the inner wall of the outer shell 1, an inner bearing 3 is arranged on the right side of the outer bearing 2, a shaft 4 is installed on the inner wall of the inner bearing 3 and the outer bearing 2, a toothed oil-slinging plate 5 is installed on the tail end of the shaft 4, an installation groove 6 is opened on the inner wall of the outer shell 1, an oil separation block 7 is arranged on the inner wall of the installation groove 6, a connecting groove 61 is opened on the top of the inner cavity of the outer shell 1, a groove body 71 is opened on the outer edge of the top of the oil separation block 7, a detection channel 72 is opened in the inner cavity of the oil separation block 7, and a viscosity detection device is installed on the outer wall of the outer shell 1 The mechanism 10 drives the toothed oil-slinging plate 5 to rotate by rotating the shaft body 4. At this time, the toothed oil-slinging plate 5 throws the lubricating oil from the bottom of the outer shell 1 to the top of the outer shell 1, and then enters the groove body 71. At this time, the lubricating oil flows toward the inner bearing 3, and the lubricating oil flows to the inner bearing 3 through the groove body 71 and the connecting groove 61, so that the inner bearing 3 can be lubricated. At the same time, the toothed oil-slinging plate 5 throws the oil into the detection channel 72 on the side of the outer shell 1. At this time, the lubricating oil enters the consistency detection mechanism 10, and the consistency detection mechanism 10 detects the consistency of the lubricating oil.

[0022] In a preferred embodiment, the top of the oil inlet of the tank body 71 is an upper inclined groove 711, and the top of the oil inlet of the tank body 71 is a lower inclined groove 712. The upper inclined groove 711 corresponds to the toothed oil slinger plate 5. By setting the oil inlet of the tank body 71 as an upward inclined surface, the toothed oil slinger plate 5 throws the oil onto the upper inclined groove 711. At this time, the lubricating oil enters the tank body 71 along the upper inclined groove 711. At this time, the contact between the lubricating oil and the upper inclined groove 711 will cause the lubricating oil to rebound. At this time, the rebounded lubricating oil contacts the lower inclined groove 712, so that the lower inclined groove 712 can block 80% of the lubricating oil from flowing back, so that there is sufficient lubricating oil in the tank body 71, which greatly improves the lubrication efficiency.

[0023] In a preferred embodiment, the groove body 71 and the connecting groove 61 are inclined surfaces, and the groove body 71 and the connecting groove 61 are inclined toward the inner bearing 3. By setting the inclined surface, the inclined surface can increase the flow rate of the liquid when the lubricating oil enters the groove body 71 and the connecting groove 61, thereby improving the rationality of the device.

[0024] In a preferred embodiment, threaded holes 8 are provided at the bottom of the mounting groove 6 and the bottom of the oil separator block 7, and fixing bolts 9 are threadedly connected to the inner walls of the threaded holes 8. The oil separator block 7 is installed in the inner cavity of the outer shell 1 by the fixing bolts 9, so that the oil separator block 7 can be disassembled. After long-term use, it is convenient to clean the slots on the inner wall of the oil separator block 7 and the outer shell 1, and it is also convenient to process the slots inside the oil separator block 7 and the outer shell 1.

[0025] In a preferred embodiment, a head sealing cover 11 is installed on the outer edge of the right side of the outer shell 1, and a tail sealing cover 12 is installed on the outer edge of the left side of the outer shell 1. The distance between the head sealing cover 11 and the inner bearing 3 is 2 cm, and the distance between the head sealing cover 11 and the inner bearing 3 is connected with the connecting groove 61. By setting the distance between the head sealing cover 11 and the inner bearing 3 to 2 cm, the lubricating oil can be filled between the head sealing cover 11 and the inner bearing 3, the lubricating oil can better enter the inner bearing 3 to lubricate the inner bearing 3, and at the same time the length of the entire bearing body can be shortened.

[0026] In a preferred embodiment, an oil groove 62 is opened at the bottom of the inner cavity of the outer shell 1, and the oil groove 62 is located below the inner bearing 3 and the outer bearing 2. The oil groove 62 plays the role of oil circulation, so that the lubricating oil on both sides of the inner bearing 3 and the outer bearing 2 in the outer shell 1 can be kept in a balanced state, so that the bottom of the inner bearing 3 and the outer bearing 2 can be soaked in lubricating oil, the outer bearing 2 can be lubricated by directly throwing oil through the toothed oil-flinging plate 5, and the inner bearing 3 can be lubricated by the toothed oil-flinging plate 5 to lubricate the lubricating oil through the groove body 71 and the connecting groove 61.

[0027] In a preferred embodiment, the consistency detection mechanism 10 includes an oil-passing shell 1001, the inner cavity of the oil-passing shell 1001 is provided with a transverse groove 1002, the inner cavity of the oil-passing shell 1001 is provided with an L groove 1003, the L groove 1003 is connected with the transverse groove 1002, the transverse groove 1002 is connected with the detection channel 72, and the toothed oil-slinging plate 5 corresponds to the detection channel 72, so the toothed oil-slinging plate 5 can throw the lubricating oil into the detection channel 72 and enter the transverse groove 1002, and then flow into the L groove 1003, so that the lubricating oil can enter the consistency detection mechanism 10, thereby improving the rationality of the device.

[0028] In a preferred embodiment, the shape of the transverse groove 1002 is wavy, and the L groove 1003 is connected to the outer shell 1. By setting the shape of the transverse groove 1002 to be wavy, the lubricating oil thrown up by the toothed oil-slinging plate 5 splashes very irregularly when entering the detection channel 72 and the transverse groove 1002. The lubricating oil is adjusted by the wavy transverse groove 1002, so that the lubricating oil enters the L groove 1003 more smoothly, thereby improving the stability of the lubricating oil and improving the accuracy of the lubricating oil viscosity detection.

[0029] In a preferred embodiment, a transverse plate 1004 is fixedly mounted on the inner wall of the L-slot 1003, a leakage groove 1005 is opened on the top of the transverse plate 1004, and a pipe 1006 is fixedly mounted on the bottom of the transverse plate 1004, and the pipe 1006 corresponds to the leakage groove 1005. The lubricating oil is stabilized by the transverse groove 1002, and then flows into the transverse plate 1004 on the L-slot 1003, and then the lubricating oil enters the pipe 1006 through the leakage groove 1005. At this time, the pipe 1006 is filled with lubricating oil, and then the lubricating oil flows down through the pipe 1006, so that the lubricating oil flows downward in a columnar shape, further improving the stability of the lubricating oil.

[0030] In a preferred embodiment, the outer edge of the oil-passing shell 1001 is fixedly equipped with a circular shell 1007, the inner wall of the circular shell 1007 is movably connected with a connecting rod 1008, the inner wall of the connecting rod 1008 is fixedly sleeved with a rotating impeller 1009, and the outer edge of the connecting rod 1008 is fixedly equipped with a detection block 1010. The lubricating oil flowing down the pipeline 1006 will contact the rotating impeller 1009, and the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 are driven to rotate by the flow of the lubricating oil. When the viscosity of the lubricating oil is different, the rotation speed of the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 will be different, so the viscosity of the lubricating oil can be detected.

[0031] In a preferred embodiment, a mounting bracket 1011 is fixedly mounted on the outer edge of the oil-passing shell 1001, a speed detection head 1012 is fixedly mounted on the top of the mounting bracket 1011, and a display module 1013 is fixedly mounted on the top of the oil-passing shell 1001. The display module 1013 is electrically connected to the speed detection head 1012. The end of the connecting rod 1008 away from the circular shell 1007 is movably connected to the mounting bracket 1011. The detection block 1010 is detected by the speed detection head 1012. When the viscosity of the lubricating oil is low, the rotation speeds of the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 are fast. When the viscosity of the lubricating oil is high, the rotation speeds of the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 are slow. At this time, the rotation speed detected by the speed detection head 1012 is transmitted to the display module 1013 for display. When the value gradually becomes smaller, it means that the viscosity of the lubricating oil becomes thicker and the lubricating oil needs to be replaced.

[0032] Working principle: when in use, the bottom of the outer shell 1 contains lubricating oil, which is driven by the rotation of the shaft body 4 to drive the toothed oil-slinging plate 5 to rotate, and the lubricating oil is brushed to the top of the outer shell 1 through the toothed oil-slinging plate 5. At this time, the outer bearing 2 can be lubricated, and the lubricating oil is thrown into the groove body 71 by the toothed oil-slinging plate 5, and then flows to between the outer shell 1 and the head sealing cover 11 through the connecting groove 61. At this time, the lubricating oil fills the space between the head sealing cover 11 and the inner bearing 3, and the lubricating oil can lubricate the inner bearing 3. Then the lubricating oil flows to the bottom of the outer shell 1. At this time, the lubricating oil on the left and right sides of the outer shell 1 is connected, and the bottoms of the outer bearing 2 and the inner bearing 3 can be soaked in lubricating oil, which can reduce the size of the bearing body. At the same time, the toothed oil-slinging plate 5 also throws the lubricating oil into the detection channel 72, and then the lubricating oil enters the wavy transverse through groove 1002, and the wavy transverse through groove 1002 is used to The splashing lubricating oil is decelerated and stabilized, and then the lubricating oil flows into the horizontal plate 1004 in the L-groove 1003, and the lubricating oil enters the pipe 1006 through the leakage groove 1005. At this time, the pipe 1006 is full of lubricating oil, and then the lubricating oil flows down through the pipe 1006. The lubricating oil contacts the rotating impeller 1009, and the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 are driven to rotate by the flow of the lubricating oil. When the viscosity of the lubricating oil is low, the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 rotate fast. When the viscosity of the lubricating oil is high, the rotating impeller 1009, the connecting rod 1008 and the detection block 1010 rotate slowly. At this time, the rotation speed detected by the rotation speed detection head 1012 is transmitted to the display module 1013 for display. When the value gradually becomes smaller, it means that the viscosity of the lubricating oil becomes thicker.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thin oil lubricated bearing body based on an oil slinger, comprising an outer shell (1), characterized in that: An outer bearing (2) is mounted on the inner wall of the outer shell (1), an inner bearing (3) is mounted on the right side of the outer bearing (2), a shaft (4) is mounted on the inner walls of both the inner bearing (3) and the outer bearing (2), a toothed oil slinger (5) is mounted on the tail end of the shaft (4), a mounting groove (6) is formed on the inner wall of the outer shell (1), an oil separator (7) is mounted on the inner wall of the mounting groove (6), a connecting groove (61) is formed on the top of the inner cavity of the outer shell (1), a groove body (71) is formed on the outer edge of the top of the oil separator (7), a detection channel (72) is formed in the inner cavity of the oil separator (7), and a viscosity detection mechanism (10) is mounted on the outer wall of the outer shell (1).

2. The thin oil lubricated bearing body based on an oil slinger according to claim 1, characterized in that: The top of the oil inlet of the tank body (71) is an upper inclined groove (711), the top of the oil inlet of the tank body (71) is a lower inclined groove (712), and the upper inclined groove (711) corresponds to the toothed oil slinger (5).

3. The thin oil lubricated bearing body based on an oil slinger according to claim 1, characterized in that: The groove body (71) and the connecting groove (61) are inclined surfaces, and the groove body (71) and the connecting groove (61) are inclined in the direction of the inner bearing (3).

4. The thin oil lubricated bearing body based on an oil slinger according to claim 1, characterized in that: The bottom of the installation groove (6) and the bottom of the oil separation block (7) are both provided with threaded holes (8), and the inner walls of the threaded holes (8) are threadedly connected with fixing bolts (9).

5. The thin oil lubricated bearing body based on an oil slinger according to claim 1, characterized in that: A head sealing cover (11) is installed on the outer edge of the right side of the outer shell (1), and a tail sealing cover (12) is installed on the outer edge of the left side of the outer shell (1). The distance between the head sealing cover (11) and the inner bearing (3) is 2 cm, and the distance between the head sealing cover (11) and the inner bearing (3) is connected to the connection groove (61).

6. The thin oil lubricated bearing body based on an oil slinger according to claim 1, characterized in that: An oil groove (62) is provided at the bottom of the inner cavity of the outer shell (1), and the oil groove (62) is located below the inner bearing (3) and the outer bearing (2).

7. The thin oil lubricated bearing body based on an oil slinger according to claim 1, characterized in that: The viscosity detection mechanism (10) comprises an oil-passing housing (1001), the inner cavity of the oil-passing housing (1001) is provided with a transverse through groove (1002), the inner cavity of the oil-passing housing (1001) is provided with an L through groove (1003), and the L through groove (1003) is connected to the transverse through groove (1002).

8. The thin oil lubricated bearing body based on an oil slinger according to claim 7, characterized in that: The transverse through groove (1002) is wavy in shape, and the L-shaped through groove (1003) is connected to the outer shell (1).

9. The thin oil lubricated bearing body based on an oil slinger according to claim 8, characterized in that: A transverse plate (1004) is fixedly mounted on the inner wall of the L-shaped slot (1003), a drain groove (1005) is provided on the top of the transverse plate (1004), and a pipe (1006) is fixedly mounted on the bottom of the transverse plate (1004), the pipe (1006) corresponding to the drain groove (1005).

10. The thin oil lubricated bearing body based on an oil slinger according to claim 7, characterized in that: A circular shell (1007) is fixedly mounted on the outer edge of the oil-passing shell (1001); a connecting rod (1008) is movably connected to the inner wall of the circular shell (1007); a rotating impeller (1009) is fixedly sleeved on the inner wall of the connecting rod (1008); and a detection block (1010) is fixedly mounted on the outer edge of the connecting rod (1008); A mounting bracket (1011) is fixedly mounted on the outer edge of the oil-passing housing (1001), a rotation speed detection head (1012) is fixedly mounted on the top of the mounting bracket (1011), a display module (1013) is fixedly mounted on the top of the oil-passing housing (1001), the display module (1013) is electrically connected to the rotation speed detection head (1012), and one end of the connecting rod (1008) away from the circular housing (1007) is movably connected to the mounting bracket (1011).

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