A device for preventing oil leakage of reducer

Abstract

The present invention relates to the technical field of anti-leakage oil devices for reducers, and discloses an anti-leakage oil device for reducers, including a reducer, wherein the reducer includes a main body mechanism, a protective shell is installed on the side of the main body mechanism, a limiting mechanism is installed at the connection between the main body mechanism and the protective shell, and a temporary sealing mechanism is installed on the inner wall of the limiting mechanism. The present invention is conducive to the delivery of compressed air to the limiting groove by providing a limiting mechanism, and increases the limiting force of the limiting plate on the main body mechanism and the protective shell, so as to avoid the limiting plate driving the main body mechanism and the protective shell to fall off during the movement, and at the same time increases the sealing performance of the main body mechanism, the protective shell, the limiting plate and the annular plate, so as to avoid the leaked lubricating oil from flowing into the working environment and causing certain pollution to the on-site environment. The present invention is conducive to the compressed air driving the compressed air circle to be in an expanded state and attached to the connection between the main body mechanism and the protective shell by providing a temporary sealing mechanism, so as to play a role of temporary blocking.

Description

Technical Field

[0001] The invention relates to the technical field of reducer oil leakage prevention devices, and more specifically to a reducer oil leakage prevention device. Background Art

[0002] A reducer is a device used to reduce speed, transmit power, and increase torque. Common reducers are mainly composed of motors, gears, shafts and bearings, housings, control systems, and power supply systems. The specific working process of a reducer is as follows: when working, under the action of the control system and the power supply system, the motor is controlled to generate high-speed rotational force. Under the action of the gears, shafts and bearings, the high-speed rotational force is decelerated and transferred to the output shaft, while the speed is reduced and the torque is increased. The decelerated power is transmitted to the application load through the output shaft to meet the needs of various industrial production fields.

[0003] During the use of the reducer, in order to ensure that the gears and shafts can be used normally, lubricating oil is provided inside the casing. At the same time, in order to ensure that the lubricating oil inside the casing does not leak, sealant is applied to the joints of the casing or sealing rubber pads are installed. However, the sealant and the sealing rubber pad are very likely to age during long-term use, thereby losing elasticity, causing poor sealing and oil leakage. When the reducer leaks oil, the reducer will have the following problems: 1. Oil leakage will cause the loss of lubricating oil inside the reducer, which will increase the friction generated when the machine is running, thereby reducing the performance and efficiency of the machine; 2. Due to insufficient oil supply, the reducer gears may wear and stick, and the bearings may also have defects, further affecting the normal operation of the machine; 3. The loss of lubricating oil will aggravate the wear of the reducer components, which may cause premature damage to the equipment, thereby shortening the service life of the equipment;

[0004] From the above, it can be seen that oil leakage in the reducer has a relatively large impact on its overall performance. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a speed reducer oil leakage prevention device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a reducer oil leakage prevention device, comprising a reducer, the reducer comprising a main body mechanism, a protective shell is installed on the side of the main body mechanism, a limiting mechanism is installed at the connection between the main body mechanism and the protective shell, and a temporary sealing mechanism is installed on the inner wall of the limiting mechanism;

[0007] The limiting mechanism comprises a limiting plate, the side of which is sleeved on the inner wall of the annular plate, the number of the annular plates is two groups, and auxiliary support plates are installed at positions close to the annular plates;

[0008] A sealed space can be formed between the limit plate, the annular plate, the main body mechanism and the protective shell. A first air pressure monitor is installed on the limit plate near the annular plate. A collection module is arranged inside the first air pressure monitor. The first air pressure monitor collects a real-time first pressure value U in the sealed space formed between the limit plate, the annular plate, the main body mechanism and the protective shell and transmits it to the collection module.

[0009] Furthermore, a rubber pad is movably mounted on the outer wall of the limit plate near the first air pressure monitor, a hollow pillar is installed at the bottom of the rubber pad, a hollow column is movably mounted on the outer wall of the hollow pillar, a first spring is installed on the inner wall of the hollow pillar, a limit groove is opened on the inner wall of the limit plate near the rubber pad, and an air hole is opened on the inner wall of the limit plate near the limit groove.

[0010] Furthermore, the temporary sealing mechanism includes an air pump, and a second Y-shaped tube is installed at the output end of the air pump. The side of the second Y-shaped tube passes through a fixedly connected limiting frame, and a compressed air ring is installed inside the limiting frame. The second Y-shaped tube is installed with a fourth solenoid valve near the limiting frame to control the compressed air to enter the limiting frame. The compressed air generated by the air pump is transported to the compressed air ring through the second Y-shaped tube and the limiting frame. The compressed air drives the compressed air ring to be in an expanded state and attached to the connection between the main mechanism and the protective shell.

[0011] Furthermore, a third solenoid valve is installed on the second Y-shaped tube at a position away from the fourth solenoid valve, a delivery pipe is installed on the side of the third solenoid valve, a first Y-shaped tube is installed on the delivery pipe at a position away from the third solenoid valve, a first solenoid valve is installed on the side of the first Y-shaped tube, and a second solenoid valve is installed on the first Y-shaped tube at a position away from the first solenoid valve.

[0012] Furthermore, the first Y-shaped tube is installed on the inner wall of the auxiliary support plate, and a second spring is installed on the outer wall of the auxiliary support plate near the first Y-shaped tube. A second air pressure monitor is installed on the outer wall of the auxiliary support plate near the second spring. The second air pressure monitor collects the real-time second pressure value W in the sealed space formed by the limit plate, the annular plate and the auxiliary support plate, and transmits it to the collection module.

[0013] Furthermore, it also includes an analysis unit, a control unit and a remote signal transmission module;

[0014] The analysis unit receives the real-time first pressure value U and the real-time second pressure value W collected by the acquisition module. The analysis unit simulates the simulated first pressure value Un generated by the first air pressure monitor when there is no leakage at the connection between the main body mechanism and the protective shell, and integrates the simulated first pressure value Un to form a first threshold range. The analysis unit simulates the simulated second pressure value Wn generated by the second air pressure monitor when the main body mechanism and the protective shell are in a normal connection state, and integrates the simulated second pressure value Wn to form a second threshold range;

[0015] The analysis unit compares the real-time first pressure value U with the first threshold range. When the real-time first pressure data U is not within the first threshold range, it is determined that the main body and the protective shell are leaking oil, and the analysis unit sends a first control instruction to the control unit.

[0016] The analysis unit compares the real-time second pressure value W with the second threshold range. When the real-time second pressure value W is not within the second threshold range, it is determined that the main body structure and the protective shell are not completely connected, and the analysis unit sends a second control instruction to the control unit.

[0017] Furthermore, the control unit receives a first control instruction, controls the temporary sealing mechanism to input current, and performs temporary blocking operations on the oil leakage of the main mechanism and the protective shell. The control unit receives a second control instruction, controls the temporary sealing mechanism to input current, and performs temporary limiting operations on the main mechanism and the protective shell. The control unit receives the first control instruction and the second control instruction, controls the remote signal transmission module to send an early warning message to the staff, reminding the staff to arrive at the scene for inspection.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention is provided with a limiting mechanism, which is conducive to the air pump passing current to generate adsorbed air, which is transported to the inside of the limiting groove through the temporary sealing mechanism, drives the main body mechanism, the protective shell and the limiting groove to generate adsorbed air, ensures that the limiting plate is attached to the surface of the main body mechanism and the protective shell, and when the analysis unit determines that there is a leakage at the connection between the main body mechanism and the protective shell, the air pump inputs current to generate adsorbed air, and a part of the compressed air is transported to the connection between the limiting plate and the annular plate through the temporary sealing mechanism, drives the limiting plate to move in the direction of the annular plate, and the limiting plate in the driving state drives the main body mechanism and the protective shell to move to a similar position, so as to achieve the effect of temporarily limiting and fastening the main body mechanism and the protective shell, avoid the expansion of the leakage of the main body mechanism and the protective shell, and at the same time achieve the effect of assisting in blocking the leakage of the main body mechanism and the protective shell. At the same time, another part of the compressed air is transported to the limiting groove, increasing the limiting force of the limiting plate on the main body mechanism and the protective shell, avoiding the phenomenon that the limiting plate drives the main body mechanism and the protective shell to fall off during the movement, and at the same time increasing the sealing of the main body mechanism, the protective shell, the limiting plate and the annular plate, so as to avoid the leaked lubricating oil flowing into the working environment and causing certain pollution to the on-site environment.

[0020] 2. The present invention is provided with a temporary sealing mechanism, which is conducive to the second air pressure monitor to collect the real-time second pressure value W in the sealed space formed by the limit plate, the annular plate and the auxiliary support plate, and transmit it to the collection module, and the collection module transmits it to the analysis unit. When the analysis unit determines that there is an incomplete connection between the main body mechanism and the protective shell, the air pump generates adsorbed air and transmits it to the limit mechanism through the second Y-shaped tube, the delivery tube and the first Y-shaped tube, which plays a role of temporary auxiliary fixation. When the analysis unit determines that there is a leakage between the main body mechanism and the protective shell, the air pump generates compressed air and transmits it to the inside of the compressed air circle through the second Y-shaped tube and the limit frame. The compressed air drives the compressed air circle to be in an expanded state and adheres to the connection between the main body mechanism and the protective shell, which plays a role of temporary blocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the back side of the overall structure of the present invention.

[0023] Figure 3 It is a front schematic diagram of the overall structure of the limiting plate of the present invention.

[0024] Figure 4 for Figure 3 Schematic diagram of the enlarged cross-section of the structure at point A in the middle.

[0025] Figure 5 It is a schematic cross-sectional view of the structure of the hollow pillar part of the present invention.

[0026] Figure 6 It is a schematic diagram of the back side of the overall structure of the limiting plate of the present invention.

[0027] Figure 7 It is a partial structural schematic diagram of the limiting plate of the present invention.

[0028] Figure 8 It is a schematic diagram of the overall structure of the annular plate of the present invention.

[0029] Fig. 9 for Figure 8 Enlarged schematic diagram of the structure at point B in the middle.

[0030] Fig.10 It is a schematic diagram of the overall structure of the air pump of the present invention.

[0031] The accompanying drawings are marked as follows: 1. reducer; 101. main body; 102. protective shell; 2. limiting mechanism; 201. limiting plate; 2011. first air pressure monitor; 2012. air hole; 2013. limiting groove; 202. annular plate; 203. rubber pad; 204. hollow column; 205. hollow pillar; 206. first spring; 207. auxiliary support plate; 3. temporary sealing mechanism; 301. air pump; 302. second air pressure monitor; 303. second spring; 304. first Y-type tube; 305. first solenoid valve; 306. delivery pipe; 307. limiting frame; 308. compressed air ring; 309. second Y-type tube; 310. third solenoid valve; 311. fourth solenoid valve; 312. second solenoid valve. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The reducer oil leakage prevention device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained without creative work by ordinary technicians in this field belong to the scope of protection of the present invention.

[0033] Reference Figure 1 to Figure 2 as well as Figure 8 As shown, the present invention provides a reducer oil leakage prevention device, including a reducer 1, the reducer 1 includes a main body mechanism 101, a protective shell 102 is installed on the side of the main body mechanism 101, a limiting mechanism 2 is installed at the connection between the main body mechanism 101 and the protective shell 102, and a temporary sealing mechanism 3 is installed on the inner wall of the limiting mechanism 2.

[0034] In the embodiment of the present application, the specific working process of this part of the application embodiment is: during installation, the protective shell 102 is installed on the side of the main body 101, and the limiting mechanism 2 is installed on the main body 101 at the same time, and the oil leakage at the connection between the main body 101 and the protective shell 102 is monitored in real time. When the main body 101 and the protective shell 102 leak, the limiting mechanism 2 and the temporary sealing mechanism 3 input current to temporarily seal the leakage of the main body 101 and the protective shell 102.

[0035] Reference Figures 1 to 9 As shown, the present invention provides a device for preventing oil leakage of a reducer, wherein the limiting mechanism 2 comprises a limiting plate 201, the side of the limiting plate 201 is sleeved on the inner wall of an annular plate 202, the number of the annular plates 202 is two groups, and auxiliary support plates 207 are installed at positions close to the annular plates 202;

[0036] A sealed space can be formed between the limit plate 201, the annular plate 202, the main body 101 and the protective shell 102. The limit plate 201 is provided with a first air pressure monitor 2011 at a position close to the annular plate 202. A collection module is provided inside the first air pressure monitor 2011. The first air pressure monitor 2011 collects a real-time first pressure value U in the sealed space formed between the limit plate 201, the annular plate 202, the main body 101 and the protective shell 102 and transmits it to the collection module.

[0037] The outer wall of the limit plate 201 is movably connected with a rubber pad 203 at a position close to the first air pressure monitor 2011, a hollow pillar 205 is installed at the bottom of the rubber pad 203, a hollow column 204 is movably connected to the outer wall of the hollow pillar 205, a first spring 206 is installed on the inner wall of the hollow pillar 205, a limit groove 2013 is opened on the inner wall of the limit plate 201 at a position close to the rubber pad 203, and an air hole 2012 is opened on the inner wall of the limit plate 201 at a position close to the limit groove 2013.

[0038] In the embodiment of the present application, the specific working process of the embodiment of this part of the application is as follows: during installation, the limit plate 201 and the annular plate 202 move to the connection between the main body 101 and the protective shell 102, and the rubber pad 203 contacts the outer wall of the main body 101 and the protective shell 102. The rubber pad 203 drives the hollow pillar 205 to drive the first spring 206 to be in a compressed state. The first spring 206 in the compressed state applies a spring force to the rubber pad 203, driving the rubber pad 203 to adhere to the outer wall of the main body 101 and the protective shell 102. At the same time, the air pump 301 is passed through an electric current to generate adsorbed air, which is transported to the inside of the limit groove 2013 through the temporary sealing mechanism 3, driving the main body 101, the protective shell 102 and the limit groove 2013 to generate adsorbed air, ensuring that the limit plate 201 is attached to the surface of the main body 101 and the protective shell 102. When the analysis unit determines that there is a leakage at the connection between the main body 101 and the protective shell 102, the air pump 301 inputs an electric current to generate adsorbed air , a part of the compressed air is delivered to the connection between the limit plate 201 and the annular plate 202 through the temporary sealing mechanism 3, driving the limit plate 201 to move in the direction of the annular plate 202, and the limit plate 201 in the driving state drives the main mechanism 101 and the protective shell 102 to move to a similar position, so as to achieve the function of temporarily limiting and fastening the main mechanism 101 and the protective shell 102, avoiding the expansion of the leakage of the main mechanism 101 and the protective shell 102, and at the same time achieving the function of assisting in blocking the leakage of the main mechanism 101 and the protective shell 102, and at the same time another part of the compressed air is delivered to the limit groove 2013, increasing the limiting force of the limit plate 201 on the main mechanism 101 and the protective shell 102, avoiding the limit plate 201 driving the main mechanism 101 and the protective shell 102 to fall off during the movement process, and at the same time increasing the sealing of the main mechanism 101, the protective shell 102, the limit plate 201 and the annular plate 202, avoiding the leaked lubricating oil from flowing into the working environment and causing certain pollution to the on-site environment.

[0039] Reference Figures 8 to 10 As shown, the present invention provides a device for preventing oil leakage of a reducer, the temporary sealing mechanism 3 includes an air pump 301, a second Y-shaped tube 309 is installed at the output end of the air pump 301, the side of the second Y-shaped tube 309 passes through a fixed connection limit frame 307, a compressed air ring 308 is installed inside the limit frame 307, the second Y-shaped tube 309 is installed with a fourth solenoid valve 311 at a position close to the limit frame 307, which is used to control the compressed air to enter the limit frame 307, the compressed air generated by the air pump 301 is transported to the compressed air ring 308 through the second Y-shaped tube 309 and the limit frame 307, and the compressed air drives the compressed air ring 308 to be in an expanded state and attached to the connection between the main mechanism 101 and the protective shell 102;

[0040] The second Y-shaped tube 309 is provided with a third solenoid valve 310 at a position far away from the fourth solenoid valve 311, a delivery pipe 306 is provided on the side of the third solenoid valve 310, a first Y-shaped tube 304 is provided on the delivery pipe 306 at a position far away from the third solenoid valve 310, a first solenoid valve 305 is provided on the side of the first Y-shaped tube 304, and a second solenoid valve 312 is provided on the first Y-shaped tube 304 at a position far away from the first solenoid valve 305;

[0041] The first Y-shaped tube 304 is installed on the inner wall of the auxiliary support plate 207, and a second spring 303 is installed on the outer wall of the auxiliary support plate 207 near the first Y-shaped tube 304. A second air pressure monitor 302 is installed on the outer wall of the auxiliary support plate 207 near the second spring 303. The second air pressure monitor 302 collects the real-time second pressure value W in the sealed space formed by the limit plate 201, the annular plate 202 and the auxiliary support plate 207, and transmits it to the collection module.

[0042] In the embodiment of the present application, the outer wall of the first Y-shaped tube 304 is connected to the inside of the air hole 2012 at a position close to the second solenoid valve 312, and the adsorbed air generated by the air pump 301 is transported to the inside of the limiting groove 2013 through the second Y-shaped tube 309, the delivery tube 306, the first Y-shaped tube 304 and the air hole 2012;

[0043] The second spring 303 is installed on the side of the limiting plate 201 at a position away from the auxiliary support plate 207 to ensure that the limiting plate 201 moves parallely inside the annular plate 202 .

[0044] In the embodiment of the present application, the specific working process of this part of the embodiment of the application is as follows: the second air pressure monitor 302 collects the real-time second pressure value W in the sealed space formed by the limit plate 201, the annular plate 202 and the auxiliary support plate 207, and transmits it to the collection module, and the collection module transmits it to the analysis unit. When the analysis unit determines that there is an incomplete connection between the main body 101 and the protective shell 102, the air pump 301 generates adsorbed air and transmits it to the limit mechanism 2 through the second Y-tube 309, the delivery tube 306, and the first Y-tube 304, which plays a role of temporary auxiliary fixation. When the analysis unit determines that there is a leakage between the main body 101 and the protective shell 102, the air pump 301 generates compressed air and transmits it to the inside of the compressed air circle 308 through the second Y-tube 309 and the limit frame 307. The compressed air drives the compressed air circle 308 to be in an expanded state and attached to the connection between the main body 101 and the protective shell 102, which plays a role of temporary blocking.

[0045] Reference Figures 1 to 10 As shown, the present invention provides a speed reducer oil leakage prevention device, which also includes an analysis unit, a control unit and a remote signal transmission module;

[0046] The analysis unit receives the real-time first pressure value U and the real-time second pressure value W collected by the acquisition module. The analysis unit simulates the simulated first pressure value Un generated by the first air pressure monitor 2011 when there is no leakage at the connection between the main body 101 and the protective shell 102, and integrates the simulated first pressure value Un to form a first threshold range. The analysis unit simulates the simulated second pressure value Wn generated by the second air pressure monitor 302 when the main body 101 and the protective shell 102 are in a normal connection state, and integrates the simulated second pressure value Wn to form a second threshold range.

[0047] The analysis unit compares the real-time first pressure value U with the first threshold range. When the real-time first pressure data U is not within the first threshold range, it is determined that the main body 101 and the protective shell 102 have oil leakage, and the analysis unit sends a first control instruction to the control unit.

[0048] The analysis unit compares the real-time second pressure value W with the second threshold range. When the real-time second pressure value W is not within the second threshold range, it is determined that the main body 101 and the protective shell 102 are not completely connected, and the analysis unit sends a second control instruction to the control unit.

[0049] The control unit receives the first control instruction, controls the temporary sealing mechanism 3 to input current, and performs temporary blocking operations on the oil leaks of the main mechanism 101 and the protective shell 102. The control unit receives the second control instruction, controls the temporary sealing mechanism 3 to input current, and performs temporary limiting operations on the main mechanism 101 and the protective shell 102. The control unit receives the first control instruction and the second control instruction, controls the remote signal transmission module to send early warning information to the staff, and reminds the staff to arrive at the scene for inspection.

[0050] The specific workflow of this application is as follows:

[0051] Step 1: During installation, the protective shell 102 is installed on the side of the main body 101, and the limiting mechanism 2 is installed on the main body 101. The oil leakage at the connection between the main body 101 and the protective shell 102 is monitored in real time. When the main body 101 and the protective shell 102 leak, the limiting mechanism 2 and the temporary sealing mechanism 3 input current to temporarily seal the leakage of the main body 101 and the protective shell 102.

[0052] Step 2: During installation, the limit plate 201 and the annular plate 202 are moved to the connection between the main body 101 and the protective shell 102, and the rubber pad 203 contacts the outer wall of the main body 101 and the protective shell 102. The rubber pad 203 drives the hollow pillar 205 to drive the first spring 206 to be in a compressed state. The first spring 206 in a compressed state applies a spring force to the rubber pad 203, driving the rubber pad 203 to adhere to the outer wall of the main body 101 and the protective shell 102. At the same time, the air pump 301 is supplied with current to generate adsorbed air, which is transported to the inside of the limit groove 2013 through the temporary sealing mechanism 3, driving the main body 101, the protective shell 102 and the limit groove 2013 to generate adsorbed air, ensuring that the limit plate 201 is attached to the surface of the main body 101 and the protective shell 102. When the analysis unit determines that there is a leakage at the connection between the main body 101 and the protective shell 102, the air pump 301 inputs current to generate adsorbed air, and a part of the compressed air passes through the temporary sealing mechanism 3. When the sealing mechanism 3 is delivered to the connection between the limit plate 201 and the annular plate 202, the limit plate 201 is driven to move in the direction of the annular plate 202. The limit plate 201 in the driving state drives the main mechanism 101 and the protective shell 102 to move to a similar position, so as to temporarily limit and fasten the main mechanism 101 and the protective shell 102, thereby preventing the leakage of the main mechanism 101 and the protective shell 102 from expanding, and at the same time, assisting in blocking the leakage of the main mechanism 101 and the protective shell 102. At the same time, another part of the compressed air is delivered to the limit groove 2013 to increase the limiting force of the limit plate 201 on the main mechanism 101 and the protective shell 102, thereby preventing the limit plate 201 from driving the main mechanism 101 and the protective shell 102 to fall off during the movement, and at the same time, increasing the sealing performance of the main mechanism 101, the protective shell 102, the limit plate 201 and the annular plate 202, thereby preventing the leaked lubricating oil from flowing into the working environment and causing certain pollution to the on-site environment.

[0053] Step three, the second air pressure monitor 302 collects the real-time second pressure value W in the sealed space formed by the limit plate 201, the annular plate 202 and the auxiliary support plate 207, and transmits it to the collection module, and the collection module transmits it to the analysis unit. When the analysis unit determines that there is an incomplete connection between the main body 101 and the protective shell 102, the air pump 301 generates adsorbed air and transmits it to the limit mechanism 2 through the second Y-tube 309, the delivery tube 306, and the first Y-tube 304, which plays a role of temporary auxiliary fixation. When the analysis unit determines that there is a leakage between the main body 101 and the protective shell 102, the air pump 301 generates compressed air and transmits it to the inside of the compressed air circle 308 through the second Y-tube 309 and the limit frame 307. The compressed air drives the compressed air circle 308 to be in an expanded state and attached to the connection between the main body 101 and the protective shell 102, which plays a role of temporary blocking.

[0054] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the case of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reducer oil leakage prevention device, comprising a reducer (1), characterized in that: The reducer (1) comprises a main body mechanism (101), a protective shell (102) is installed on the side of the main body mechanism (101), a limit mechanism (2) is installed at the connection between the main body mechanism (101) and the protective shell (102), and a temporary sealing mechanism (3) is installed on the inner wall of the limit mechanism (2); The limiting mechanism (2) comprises a limiting plate (201), the side surface of the limiting plate (201) being sleeved on the inner wall of the annular plate (202), the number of the annular plates (202) being two groups, and auxiliary support plates (207) being installed at positions close to the annular plates (202); A sealed space can be formed between the limit plate (201), the annular plate (202), the main body mechanism (101) and the protective shell (102); a first air pressure monitor (2011) is installed on the limit plate (201) at a position close to the annular plate (202); a collection module is arranged inside the first air pressure monitor (2011); the first air pressure monitor (2011) collects a real-time first pressure value U in the sealed space formed between the limit plate (201), the annular plate (202), the main body mechanism (101) and the protective shell (102), and transmits it to the collection module; The outer wall of the limit plate (201) is movably sleeved with a rubber pad (203) at a position close to the first air pressure monitor (2011); a hollow pillar (205) is installed at the bottom of the rubber pad (203); a hollow pillar (204) is movably sleeved on the outer wall of the hollow pillar (205); a first spring (206) is installed on the inner wall of the hollow pillar (205); a limit groove (213) is provided on the inner wall of the limit plate (201) at a position close to the rubber pad (203); and an air hole (212) is provided on the inner wall of the limit plate (201) at a position close to the limit groove (2013); The temporary sealing mechanism (3) comprises an air pump (301), the output end of the air pump (301) is provided with a second Y-shaped tube (309), the side of the second Y-shaped tube (309) passes through a fixedly connected limit frame (307), a compressed air ring (308) is provided inside the limit frame (307), the second Y-shaped tube (309) is provided with a fourth solenoid valve (311) at a position close to the limit frame (307), and is used to control the compressed air to enter the limit frame (307), the compressed air generated by the air pump (301) is transported to the inside of the compressed air ring (308) through the second Y-shaped tube (309) and the limit frame (307), and the compressed air drives the compressed air ring (308) to be in an expanded state and attached to the connection between the main mechanism (101) and the protective shell (102); The second Y-shaped tube (309) is provided with a third solenoid valve (310) at a position away from the fourth solenoid valve (311); a delivery tube (306) is provided on a side of the third solenoid valve (310); a first Y-shaped tube (304) is provided on the delivery tube (306) at a position away from the third solenoid valve (310); a first solenoid valve (305) is provided on a side of the first Y-shaped tube (304); and a second solenoid valve (312) is provided on the first Y-shaped tube (304) at a position away from the first solenoid valve (305); The first Y-shaped tube (304) is installed on the inner wall of the auxiliary support plate (207); a second spring (303) is installed on the outer wall of the auxiliary support plate (207) at a position close to the first Y-shaped tube (304); a second air pressure monitor (302) is installed on the outer wall of the auxiliary support plate (207) at a position close to the second spring (303); the second air pressure monitor (302) collects a real-time second pressure value W in the sealed space formed by the limit plate (201), the annular plate (202) and the auxiliary support plate (207), and transmits it to the collection module; It also includes an analysis unit, a control unit and a remote signal transmission module; The analysis unit receives the real-time first pressure value U and the real-time second pressure value W collected by the acquisition module. The analysis unit simulates the simulated first pressure value Un generated by the first air pressure monitor (2011) when no leakage occurs at the connection between the main body (101) and the protective shell (102), and integrates the simulated first pressure value Un to form a first threshold range. The analysis unit simulates the simulated second pressure value Wn generated by the second air pressure monitor (302) when the main body (101) and the protective shell (102) are in a normal connection state, and integrates the simulated second pressure value Wn to form a second threshold range. The analysis unit compares the real-time first pressure value U with the first threshold range, and when the real-time first pressure data U is not within the first threshold range, it is determined that the main body (101) and the protective shell (102) have oil leakage, and the analysis unit sends a first control instruction to the control unit; The analysis unit compares the real-time second pressure value W with the second threshold range, and when the real-time second pressure value W is not within the second threshold range, it is determined that the main body (101) and the protective shell (102) are in an incompletely connected state, and the analysis unit sends a second control instruction to the control unit; The control unit receives a first control instruction, controls the temporary sealing mechanism (3) to input current, and performs a temporary plugging operation on the oil leaking part of the main mechanism (101) and the protective shell (102); the control unit receives a second control instruction, controls the temporary sealing mechanism (3) to input current, and performs a temporary position limiting operation on the main mechanism (101) and the protective shell (102); and the control unit receives the first control instruction and the second control instruction, controls the remote signal transmission module to send a warning message to the staff, and reminds the staff to arrive at the site for inspection; The outer wall of the first Y-shaped tube (304) is connected to the inside of the air hole (2012) at a position close to the second solenoid valve (312), and the adsorbed air generated by the air pump (301) is transported to the inside of the limiting groove (2013) through the second Y-shaped tube (309), the delivery tube (306), the first Y-shaped tube (304) and the air hole (2012); The second spring (303) is installed on the side of the limiting plate (201) at a position away from the auxiliary support plate (207) to ensure that the limiting plate (201) moves parallely inside the annular plate (202); The specific working process of the reducer oil leakage prevention device: Step 1: During installation, the protective shell (102) is installed on the side of the main body (101), and the limiting mechanism (2) is installed on the main body (101). The oil leakage at the connection between the main body (101) and the protective shell (102) is monitored in real time. When the main body (101) and the protective shell (102) leak, the limiting mechanism (2) and the temporary sealing mechanism (3) input current to temporarily seal the leaking parts of the main body (101) and the protective shell (102); Step 2: During installation, the limit plate (201) and the annular plate (202) are moved to the connection between the main body (101) and the protective shell (102), and the rubber pad (203) contacts the outer wall of the main body (101) and the protective shell (102). The rubber pad (203) drives the hollow support (205) to drive the first spring (206) to be in a compressed state. The first spring (206) in the compressed state applies a spring force to the rubber pad (203), driving the rubber pad (203) to adhere to the outer wall of the main body (101) and the protective shell (102). At the same time, the air pump (301) is supplied with electric current to generate adsorbed air, which is transported to the interior of the limit groove (2013) through the temporary sealing mechanism (3), driving the main body mechanism (101), the protective shell (102) and the limit groove (2013) to generate adsorbed air, ensuring that the limit plate (201) is attached to the surfaces of the main body mechanism (101) and the protective shell (102); when the analysis unit determines that a leakage occurs at the connection between the main body mechanism (101) and the protective shell (102), the air pump (301) is supplied with electric current to generate adsorbed air, and a portion of the compressed air is transported to the interior of the limit groove (2013). The liquid is transported to the connection between the limit plate (201) and the annular plate (202) through the temporary sealing mechanism (3), and the limit plate (201) is driven to move in the direction of the annular plate (202). The limit plate (201) in the driven state drives the main body (101) and the protective shell (102) to move to a similar position, thereby achieving the function of temporarily limiting and fastening the main body (101) and the protective shell (102), thereby preventing the leakage of the main body (101) and the protective shell (102) from expanding, and at the same time achieving the function of assisting in blocking the main body (101) and the protective shell ( 102), while another part of the compressed air is delivered to the limit groove (2013), thereby increasing the limit force of the limit plate (201) on the main body (101) and the protective shell (102), thereby preventing the limit plate (201) from driving the main body (101) and the protective shell (102) to fall off during the movement, and at the same time increasing the sealing performance of the main body (101), the protective shell (102), the limit plate (201) and the annular plate (202), thereby preventing the leaked lubricating oil from flowing into the working environment and causing certain pollution to the on-site environment; Step 3: The second air pressure monitor (302) collects the real-time second pressure value W in the sealed space formed by the limit plate (201), the annular plate (202) and the auxiliary support plate (207), and transmits it to the collection module, which transmits it to the analysis unit. When the analysis unit determines that the connection between the main body (101) and the protective shell (102) is not complete, the air pump (301) generates adsorbed air and transmits it to the limit mechanism (2) through the second Y-shaped tube (309), the delivery tube (306) and the first Y-shaped tube (304), thereby playing a role of temporary auxiliary fixation. When the analysis unit determines that there is a leakage between the main body (101) and the protective shell (102), the air pump (301) generates compressed air and transmits it to the inside of the compressed air ring (308) through the second Y-shaped tube (309) and the limit frame (307). The compressed air drives the compressed air ring (308) to be in an expanded state and attached to the connection between the main body (101) and the protective shell (102), thereby playing a role of temporary blocking.

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