Gear reducer with fault diagnosis function

Abstract

The invention relates to the technical field of gear reducers, in particular to a gear reducer with a fault diagnosis function, which comprises a gear box, a cooling structure and a diagnosis component, the cooling structure comprises an oil tank arranged outside the gear box, and a cooling component is arranged at the bottom of the oil tank; the cooling structure further comprises an oil injection assembly and an oil return assembly which are arranged in the gearbox. The oil injection assembly comprises an oil injection seat, oil injection nozzles are distributed on the oil injection seat, an adjusting piece used for adjusting the flow of the oil injection nozzles is arranged in the oil injection seat, a driving piece is arranged in the gearbox, and the oil injection seat is driven by the driving piece to slide in a reciprocating mode when the cooling assembly works. The oil return assembly comprises an oil return coil, the oil return coil is connected with the oil tank through an oil return pipe, an oil pump is arranged on the oil return pipe, and a filter part is arranged on the oil return pipe. The oil spraying seat slides on the sliding rail in a reciprocating mode, so that the oil spraying nozzle can move in a reciprocating mode, the coverage area of sprayed cooling oil can be well increased, and the cooling and lubricating effects of the oil spraying nozzle on the gear box are improved.

Description

Technical Field

[0001] The invention relates to the technical field of gear reducers, and in particular to a gear reducer with a fault diagnosis function. Background Art

[0002] A gear reducer is a mechanical transmission device that transmits high-speed rotational power and reduces the output speed through a gear transmission mechanism. Its main function is to reduce the input high-speed rotational power to a low speed of the output shaft through gear transmission, while increasing the output torque.

[0003] At present, the gear set in the gearbox will generate heat during the rotation process. Therefore, the gear set in the gearbox will be cooled and lubricated through the cooling structure to improve the gear life of the gearbox. The cooling and lubrication of the gear set of the existing gearbox generally adopts the spray lubrication method to fully lubricate the gears and quickly take away the generated heat. For example, the patent number CN109681583B discloses an internal self-cooling double reducer and its clearance elimination method, in which the first space is cooled by spraying to prevent the oil from stirring. However, in actual use, the positions of the two spray ports in the first space are fixed, resulting in the sprayed cooling oil only covering the connection between the first passive gear, the second passive gear and the input gear, that is, the spray coverage area is fixed, thereby affecting its cooling effect. Summary of the invention

[0004] The object of the present invention is to provide a gear reducer with a fault diagnosis function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A gear reduction box with a fault diagnosis function comprises a gear box and a cooling structure and a diagnostic component arranged in the gear box, wherein the cooling structure comprises an oil tank arranged outside the gear box, and a cooling component for cooling the oil tank is arranged at the bottom of the oil tank; The cooling structure also includes an oil injection assembly and an oil return assembly arranged in the gear box, the oil tank is used to supply oil to the oil injection assembly, and the oil return assembly is used to pump the cooling oil in the gear box into the oil tank; The fuel injection assembly includes a fuel injection seat, a fuel injection nozzle is arranged on the fuel injection seat, a regulating member for adjusting the flow of the fuel injection nozzle is arranged in the fuel injection seat, and a driving member is arranged in the gear box. When the cooling assembly is working, the driving member drives the fuel injection seat to slide back and forth; The oil return assembly includes an oil return coil arranged at the bottom of the gear box, the oil return coil is connected to the oil tank through an oil return pipe, an oil pump is arranged on the oil return pipe, and a filter element for filtering the cooling oil is arranged on the oil return pipe.

[0006] Preferably, the oil tank is provided with an oil storage cavity located at the top and a cooling cavity located at the bottom; The cooling assembly comprises a heat-conducting fin arranged in the oil storage cavity, the heat-conducting fin extends into the cooling cavity, and a blowing member for driving air flow is also arranged in the cooling cavity.

[0007] Preferably, ventilation slots connected to the cooling cavity are provided at both ends of the oil tank, and the blowing member includes a double-axis motor arranged in the cooling cavity, and fan blades located at the ventilation slots are provided on the output shaft of the double-axis motor.

[0008] Preferably, a sliding cavity and an oil cavity communicating with the sliding cavity are provided in the oil injection seat; The adjusting member includes a piston column arranged in a sliding cavity through a first spring, a fuel injector nozzle arranged on the lower side of a fuel injection seat, a flow channel hole corresponding to the fuel injector nozzle is arranged on the piston column, a traction rod extending out of the fuel injection seat is arranged on the piston column, and an electric push rod for pushing the traction rod to move is arranged outside the fuel injection seat.

[0009] Preferably, the driving member includes a rotatable shaft, the upper end of the shaft extends into the cooling chamber, the upper end of the shaft is provided with a first bevel gear, the output shaft of the dual-axis motor is provided with a second bevel gear meshing with the first bevel gear, the lower end of the shaft is provided with a turntable, the lower side of the turntable is hingedly provided with a traction plate at the edge, and the other end of the traction plate is hingedly connected to the corresponding fuel injection seat.

[0010] Preferably, the filter element comprises a filter cartridge, a filter plate is arranged in the filter cartridge, a vibrator is arranged in the filter cartridge, and when the cooling assembly is working, the filter plate is driven to vibrate by the vibrator.

[0011] Preferably, the lower end of the filter cartridge is opened, a plugging cover is threadedly connected to the lower end opening of the filter cartridge, the filter plate is liftably arranged in the filter cartridge by a second spring, a push rod extending through the filter cartridge is provided on the filter plate, the output shaft of the dual-axis motor extends through the oil tank, and the vibrating member is arranged at the protruding end of the dual-axis motor.

[0012] Preferably, the vibrating member comprises a wheel disc arranged on the output shaft of the dual-axis motor, the outer wall of the wheel disc is provided with an annular groove along its circumference, the annular groove is provided with a groove for the push rod to extend into, and a guide surface for the push rod to slide out is provided on one side wall of the groove.

[0013] Preferably, a slide rail is provided on the inner top wall of the gear box along its extension direction, and the oil injection seat is slidably mounted on the slide rail.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention enables the oil spray nozzle to reciprocate by sliding the oil spray seat back and forth on the slide rail, so that the coverage area of ​​the cooling oil spray can be better increased, thereby improving the cooling and lubricating effect on the gear box.

[0015] 2. The present invention cools the cooling oil that flows back into the oil tank through a cooling assembly, thereby ensuring that the cooling oil enters the gear reduction box again for cooling and lubrication, that is, the cooling oil can be circulated to cool and lubricate the gear reduction box.

[0016] 3. The present invention can better filter the cooling oil flowing in the oil return pipe through the filter element to ensure that the cooling oil returning to the oil tank does not contain impurities such as metal debris, that is, to prevent impurities from entering the oil injection assembly and causing blockage, thereby affecting the use of the cooling structure.

[0017] 4. The present invention, through the arrangement of the driving member and the vibrating member, enables the cooling assembly to drive the oil injection seat to slide back and forth on the slide rail during cooling. At the same time, it can cause the filter plate to vibrate to avoid clogging, thereby ensuring the filtering effect of the filter element and making the cooling structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of a gear reducer with fault diagnosis function in the present invention.

[0019] Figure 2 It is a schematic diagram of the structure between the cooling structure and the box cover in the present invention.

[0020] Figure 3 It is a structural schematic diagram of the cooling structure in the present invention.

[0021] Figure 4 It is a cross-sectional schematic diagram of the cooling structure in the present invention.

[0022] Figure 5 for Figure 4 Enlarged schematic diagram of part A.

[0023] Figure 6 This is one of the partial structural schematic diagrams of the cooling structure in the present invention.

[0024] Figure 7 This is the second partial structural schematic diagram of the cooling structure in the present invention.

[0025] Figure 8 for Figure 4 Schematic diagram of the enlarged portion B.

[0026] The meaning of the symbols in the figure is: 100, gear box; 101, box cover; 110, oil tank; 200, fuel injection seat; 201, fuel injection nozzle; 210, oil return coil; 220, oil return pipe; 221, oil pump; 230, filter cartridge; 301, ventilation slot; 311, oil inlet hole; 320, slide rail; 401, oil storage chamber; 402, cooling chamber; 411, heat-conducting fins; 420, dual-axis motor; 421, fan blades; 422, second bevel gear; 430, rotating shaft; 431, first bevel gear; 432, rotating disk; 501, sliding chamber; 502, oil storage chamber; 510, first spring; 520, piston rod; 521, flow channel hole; 522, traction rod; 710, electric push rod; 720, traction plate; 730, wheel disc; 731, ring groove; 732, groove; 810, filter plate; 811, push rod; 820, plugging cover; 830, second spring. DETAILED DESCRIPTION

[0027] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0028] The following is combined with Figure 1-Figure 8 This embodiment is described in further detail.

[0029] like Figure 1-Figure 4 As shown, a gear reduction box with a fault diagnosis function in this embodiment includes a gear box 100 and a cooling structure and a diagnostic component arranged in the gear box 100. The cooling structure includes an oil tank 110 arranged outside the gear box 100. A cooling component for cooling the oil tank 110 is arranged at the bottom of the oil tank 110; The cooling structure also includes an oil injection assembly and an oil return assembly disposed in the gear box 100. The oil tank 110 is used to supply oil to the oil injection assembly, and the oil return assembly is used to pump the cooling oil in the gear box 100 into the oil tank 110. The fuel injection assembly includes a fuel injection seat 200, on which a fuel injection nozzle 201 is arranged, and a regulating member for adjusting the flow of the fuel injection nozzle 201 is arranged in the fuel injection seat 200, and a driving member is arranged in the gear box 100, and when the cooling assembly is working, the fuel injection seat 200 is driven by the driving member to slide back and forth; The oil return assembly includes an oil return coil 210 disposed at the bottom of the gearbox 100. The oil return coil 210 is connected to the oil tank 110 via an oil return pipe 220. An oil pump 221 is disposed on the oil return pipe 220. The oil return pipe 220 is provided with a filter element for filtering the cooling oil.

[0030] The diagnostic components in this embodiment include a data acquisition module and a data analysis module, wherein the data acquisition module collects data such as the temperature, pressure, output shaft speed of the gear box 100 through corresponding sensors, and inputs the collected temperature, pressure, output shaft speed and other data into the data analysis module, which analyzes the data and identifies the fault, so that the gear reducer has the function of fault diagnosis.

[0031] In actual use of this embodiment, the oil tank 110 is arranged on the box cover 101 at the top of the gear box 100 along the extension direction of the gear box 100. The oil tank 110 contains cooling oil for cooling and lubricating the gear box 100, wherein the oil tank 110, the oil spray assembly and the oil return assembly form a cooling oil circulation flow path, so that under the action of the oil pump 221, the cooling oil in the oil tank 110 can enter the liquid spray assembly and be sprayed out through the oil spray nozzle 201 to spray and cool the gear set in the gear box 100. The cooling oil after cooling and lubrication flows to the bottom of the gear box 100 and is returned to the oil tank 110 through the action of the oil pump 221 and the oil return pipe 220, thereby allowing the cooling oil to be circulated and used, so that it can cool and lubricate the gear reduction box; The cooling assembly is provided to cool the cooling oil returning to the oil tank 110, thereby ensuring that the cooling oil re-enters the gear reduction box for cooling and lubrication. Specifically, Figure 3 As shown, in order to better allow the cooling oil at the bottom of the gear box 100 to flow back into the oil tank 110 through the oil return pipe 220, the oil return coil 210 is horizontally arranged at the bottom of the gear box 100, and an oil inlet hole 311 is arranged on the lower side wall of the oil return coil 210; In this embodiment, the cooling oil flowing in the oil return pipe 220 can be preferably filtered by the filter element to ensure that the cooling oil returning to the oil tank 110 does not contain impurities such as metal debris, that is, to prevent impurities from entering the oil injection assembly, causing blockage and affecting the use of the cooling structure; In this embodiment, the adjustment member is provided so that in actual use, the amount of oil sprayed by the oil spray nozzle 201 can be controlled to adjust the oil level in the gear box 100; Among them, through the setting of the driving member, in actual use, when the cooling component is working, the driving member drives the oil spray seat 200 to slide back and forth, so that the oil spray nozzle 201 can move back and forth, so that it can better increase the coverage area of ​​the cooling oil spray, thereby improving its cooling and lubrication effect on the gearbox 100.

[0032] Combination Figure 6As shown, in this embodiment, the oil tank 110 is provided with an oil storage chamber 401 located at the top and a cooling chamber 402 located at the bottom; The cooling assembly includes a heat-conducting fin 411 disposed in the oil storage cavity 401 . The heat-conducting fin 411 extends into the cooling cavity 402 . A blowing member for driving air flow is also disposed in the cooling cavity 402 .

[0033] In this embodiment, the oil storage chamber 401 is connected to the oil return pipe 220 so that the cooling oil can flow back into the oil storage chamber 401; wherein, the heat-conducting fins 411 can conduct the heat in the cooling oil in the oil storage chamber 401 to the cooling chamber 402, and under the action of the blowing member, the heat entering the cooling chamber 402 is dissipated, thereby better cooling the cooling oil flowing back into the oil storage chamber 401 so that it can enter the gear box 100 for cooling and lubrication.

[0034] In this embodiment, ventilation slots 301 connected to the cooling cavity 402 are provided at both ends of the oil tank 110, and the blowing member includes a dual-axis motor 420 arranged in the cooling cavity 402, and the output shaft of the dual-axis motor 420 is provided with fan blades 421 located at the ventilation slots 301.

[0035] Through the structure in this embodiment, the dual-axis motor 420 can drive the fan blades 421 to rotate, so that the outside air enters the cooling chamber 402 through the air permeable slots 301 on one side, and the air in the cooling chamber 402 is discharged from the air permeable slots 301 on the other side, thereby realizing air flow in the cooling chamber 402, so as to improve the cooling effect of the cooling component on the cooling oil in the oil storage chamber 401.

[0036] Combination Figure 5 As shown, in this embodiment, a sliding cavity 501 and an oil storage cavity 502 communicating with the sliding cavity 501 are provided in the oil injection seat 200; The adjusting member includes a piston column 520 arranged in the sliding cavity 501 through a first spring 510, the fuel injection nozzle 201 is arranged on the lower side of the fuel injection seat 200, a flow channel hole 521 is arranged on the piston column 520 corresponding to the fuel injection nozzle 201, a traction rod 522 extending out of the fuel injection seat 200 is arranged on the piston column 520, and an electric push rod 710 is arranged outside the fuel injection seat 200 for pushing the traction rod 522 to move.

[0037] In actual use of this embodiment, a slide rail 320 is provided on the cover 101 of the gear box 100 along its extension direction, and the oil injection seat 200 is slidably mounted on the slide rail 320; In this embodiment, the oil storage chamber 502 is connected to the oil storage chamber 401 through a hose, so that the cooling oil in the oil storage chamber 401 enters the oil storage chamber 502 through the hose under the action of the oil pump 221; wherein, through the setting of the flow channel hole 521 and the oil nozzle 201, the cooling oil in the oil storage chamber 502 passes through the flow channel hole 521 and is sprayed out by the oil nozzle 201, so as to realize the oil injection operation of the oil injection assembly.

[0038] The side wall of the piston rod 520 slides against the inner wall of the sliding cavity 501 to avoid a gap between the sliding cavity 501 and the piston rod 520, which would cause leakage of cooling oil and affect the oil injection effect of the oil injection assembly. Specifically, in order to improve the oil injection effect of the oil injection assembly, in this embodiment, two oil injection seats 200 are relatively and slidably installed on the slide rail 320. At the same time, oil return pipes 220 are relatively arranged on both sides of the oil return coil 210. The oil return pipes 220 are connected to the oil storage chamber 401. The oil return pipes 220 are provided with oil pumps 221 and filters to ensure the return speed of the cooling oil and the recycling effect of the cooling oil.

[0039] Among them, one end of the sliding cavity 501 is open, and a blocking ring is threadedly installed at the opening, thereby preferably realizing the disassembly and assembly of the first spring 510 and the piston column 520 in the sliding cavity 501; wherein, one end of the traction rod 522 extends through the blocking ring and is fixedly connected to the output end of the electric push rod 710, and at the same time, the electric push rod 710 is fixedly connected to the side wall of the fuel injection seat 200, so that the electric push rod 710 can drive the piston column 520 to move in the sliding cavity 501, thereby controlling the misalignment degree between the flow channel hole 521 and the fuel injection nozzle 201, so as to control the fuel injection rate of the fuel injection nozzle 201; Specifically, when the injection rate of the oil injector 201 is greater than the oil pumping rate of the oil pump 221, the cooling oil level in the gear box 100 rises; when the injection rate of the oil injector 201 is equal to the oil pumping rate of the oil pump 221, the cooling oil level in the gear box 100 remains basically unchanged; when the injection rate of the oil injector 201 is less than the oil pumping rate of the oil pump 221, the cooling oil level in the gear box 100 decreases. The above-mentioned adjustment method is used to meet different operating conditions of the gear reducer.

[0040] In this embodiment, the driving member includes a rotatable shaft 430, the upper end of the shaft 430 extends into the cooling chamber 402, the upper end of the shaft 430 is provided with a first bevel gear 431, the output shaft of the dual-axis motor 420 is provided with a second bevel gear 422 meshing with the first bevel gear 431, the lower end of the shaft 430 is provided with a turntable 432, the lower side of the turntable 432 is hingedly provided with a traction plate 720 at the edge, and the other end of the traction plate 720 is hingedly connected to the corresponding injection seat 200.

[0041] In this embodiment, the rotating shaft 430 is rotatably installed on the box cover 101 through a bearing seat. Through the above-mentioned structural setting, when the dual-axis motor 420 drives the fan blades 421 to rotate, the first bevel gear 431 and the second bevel gear 422 cooperate to drive the rotating shaft 430 to rotate, thereby driving the turntable 432 to rotate, so that under the action of the traction plate 720, the slide rail 320 limits the position of the injection seat 200, and the injection seat 200 is pulled back and forth along the slide rail 320, thereby driving the injection nozzle 201 to reciprocate, so as to increase its coverage area of ​​the injection, so as to promote its cooling effect on the gear box 100.

[0042] Specifically, driving members are relatively arranged in the gear box 100 , and the driving members are respectively matched with the output shafts on both sides of the dual-axis motor 420 , so that the dual-axis motor 420 can drive the two oil injection seats 200 to slide reciprocatingly on the slide rail 320 .

[0043] Combination Figure 7-Figure 8 As shown, in this embodiment, the filter element includes a filter cartridge 230, a filter plate 810 is provided in the filter cartridge 230, and a vibrating element is provided in the filter cartridge 230. When the cooling assembly is working, the filter plate 810 is driven to vibrate by the vibrating element.

[0044] In this embodiment, the filter cartridge 230 is arranged on the box cover 101 along the vertical direction, wherein the filter plate 810 is provided with filter holes for filtering the cooling oil, and the filter plate 810 is used to separate the filter cartridge 230 so that the filter cartridge 230 forms an upper chamber and a lower chamber, and the oil return pipe 220 includes a lower pipe section connected to the lower chamber and an upper pipe section connected to the upper chamber and the oil storage chamber 401, thereby, under the action of the oil pump 221, the cooling oil is filtered by the filter plate 810 in the filter cartridge 230 and flows into the oil storage chamber 401, and the impurities in the cooling oil fall into the lower chamber; Among them, by setting the vibration part, it can drive the filter plate 810 to vibrate up and down in the filter tube 230, which can better avoid the clogging of the filter holes of the filter plate 810 and affect its filtering effect on the cooling oil.

[0045] In this embodiment, the lower end of the filter cartridge 230 is opened, and a plug cover 820 is threadedly connected to the lower end opening of the filter cartridge 230. The filter plate 810 is liftably arranged in the filter cartridge 230 through a second spring 830. The filter plate 810 is provided with a push rod 811 extending through the filter cartridge 230. The output shaft of the dual-axis motor 420 extends through the oil tank 110, and the vibration member is arranged at the protruding end of the dual-axis motor 420.

[0046] In this embodiment, the vibrating member includes a wheel 730 arranged on the output shaft of the dual-axis motor 420, and the outer wall of the wheel 730 is provided with an annular groove 731 along its circumference, and the annular groove 731 is provided with a groove 732 for the push rod 811 to extend into, and a guide surface for the push rod 811 to slide out is provided on one side wall of the groove 732.

[0047] The filter plate 810 is slidably installed in the filter cartridge 230. Specifically, a step portion is formed at the separation position between the lower chamber and the upper chamber, so that the second spring 830 pushes the filter plate 810 to abut against the step portion, so that the push rod 811 penetrates the filter cartridge 230 and extends into the corresponding annular groove 731, and the upper end of the push rod 811 extends into the groove 732. At this time, the output shaft of the dual-axis motor 420 rotates to drive the wheel plate 730 to rotate, so that the push rod 811 can slide out of the groove 732 along the guide surface, and then push the filter plate 810 to move downward, and cooperate with the action of the second spring 830 to make the wheel plate 730 rotate, so that the push rod 811 slides into the adjacent groove 732, and then the filter plate 810 is reset. As a result, the wheel plate 730 continues to rotate, which can make the push rod 811 slide into and out of the groove 732, and preferably realize the vibration of the filter plate 810 to avoid clogging of the filter plate 810. When it is necessary to discharge the impurities in the filter cartridge 230, the gear reduction box is disassembled and the plugging cover 820 is threadedly removed, so that the impurities in the filter cartridge 230 can be discharged to ensure the continuous use of the filter element.

[0048] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A gear reduction box with a fault diagnosis function, comprising a gear box (100) and a cooling structure and a diagnostic component arranged in the gear box (100), characterized in that: The cooling structure comprises an oil tank (110) arranged outside the gear box (100), and a cooling component for cooling the oil tank (110) is arranged at the bottom of the oil tank (110); The cooling structure also includes an oil injection assembly and an oil return assembly disposed in the gear box (100); the oil tank (110) is used to supply oil to the oil injection assembly, and the oil return assembly is used to pump cooling oil in the gear box (100) into the oil tank (110); The oil injection assembly comprises an oil injection seat (200), an oil injection nozzle (201) is arranged on the oil injection seat (200), an adjusting member for adjusting the flow rate of the oil injection nozzle (201) is arranged in the oil injection seat (200), a driving member is arranged in the gear box (100), and when the cooling assembly is working, the driving member drives the oil injection seat (200) to slide back and forth; The oil return assembly comprises an oil return coil (210) disposed at the bottom of the gear box (100); the oil return coil (210) is connected to the oil tank (110) via an oil return pipe (220); an oil pump (221) is disposed on the oil return pipe (220); and a filter element for filtering cooling oil is disposed on the oil return pipe (220).

2. The gear reducer with fault diagnosis function according to claim 1, characterized in that: An oil storage chamber (401) located at an upper portion and a cooling chamber (402) located at a lower portion are provided in the oil tank (110); The cooling assembly comprises a heat-conducting fin (411) disposed in the oil storage cavity (401); the heat-conducting fin (411) extends into the cooling cavity (402); and a blowing member for driving air flow is also disposed in the cooling cavity (402).

3. The gear reducer with fault diagnosis function according to claim 2, characterized in that: Air permeable slots (301) communicating with the cooling cavity (402) are provided at both ends of the oil tank (110); the blowing member comprises a dual-axis motor (420) disposed in the cooling cavity (402); and fan blades (421) located at the air permeable slots (301) are provided on the output shaft of the dual-axis motor (420).

4. The gear reducer with fault diagnosis function according to claim 3, characterized in that: The oil injection seat (200) is provided with a sliding cavity (501) and an oil storage cavity (502) communicating with the sliding cavity (501); The regulating member comprises a piston column (520) arranged in a sliding cavity (501) via a first spring (510); a fuel injection nozzle (201) is arranged on the lower side of the fuel injection seat (200); a flow channel hole (521) is arranged on the piston column (520) corresponding to the fuel injection nozzle (201); a traction rod (522) extending out of the fuel injection seat (200) is arranged on the piston column (520); and an electric push rod (710) for pushing the traction rod (522) to move is arranged outside the fuel injection seat (200).

5. The gear reducer with fault diagnosis function according to claim 4, characterized in that: The driving member comprises a rotatable rotating shaft (430), the upper end of the rotating shaft (430) extending into the cooling chamber (402), the upper end of the rotating shaft (430) being provided with a first bevel gear (431), the output shaft of the dual-shaft motor (420) being provided with a second bevel gear (422) meshing with the first bevel gear (431), the lower end of the rotating shaft (430) being provided with a rotating disk (432), the lower side surface of the rotating disk (432) being hingedly provided with a traction plate (720) at the edge, the other end of the traction plate (720) being hingedly connected to the corresponding oil injection seat (200).

6. The gear reducer with fault diagnosis function according to claim 3, characterized in that: The filter element comprises a filter cartridge (230), a filter plate (810) is arranged in the filter cartridge (230), a vibration element is arranged in the filter cartridge (230), and when the cooling assembly is in operation, the vibration element drives the filter plate (810) to vibrate.

7. The gear reducer with fault diagnosis function according to claim 6, characterized in that: The filter cartridge (230) is provided with an opening at the lower end, a plugging cover (820) is threadedly connected to the opening at the lower end of the filter cartridge (230), a filter plate (810) is movably arranged in the filter cartridge (230) via a second spring (830), a push rod (811) is provided on the filter plate (810) and extends through the filter cartridge (230), an output shaft of the dual-axis motor (420) extends through the oil tank (110), and a vibrating member is provided at the extended end of the dual-axis motor (420).

8. The gear reducer with fault diagnosis function according to claim 7, characterized in that: The vibrating member comprises a wheel disc (730) arranged on the output shaft of the dual-axis motor (420); an annular groove (731) is provided on the outer wall of the wheel disc (730) along its circumference; a groove (732) for the push rod (811) to extend into is provided in the annular groove (731); and a guide surface for the push rod (811) to slide out is provided on one side wall of the groove (732).

9. The gear reducer with fault diagnosis function according to claim 5, characterized in that: A slide rail (320) is provided on the inner top wall of the gear box (100) along its extension direction, and the oil injection seat (200) is slidably mounted on the slide rail (320).

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