Air cooling island fan speed reducer

Abstract

The utility model provides an air cooling island fan speed reducer, and belongs to the technical field of speed reducers. The air cooling island fan speed reducer comprises a box body, an input cavity, an input shaft, a first bevel gear, an intermediate shaft, a second bevel gear, first outer teeth, an output shaft, a gear and an oil flinger. The oil flinger is arranged on the outer side of the input shaft in a sleeving mode, so that when the input shaft rotates, the input shaft can drive the oil flinger to rotate in lubricating oil, the lubricating oil is brought up and splashed to the top of the box body, parts located at the top of the box body are lubricated and cooled, and therefore the effect that a circulating pump does not need to be additionally arranged is achieved. By means of the structure, lubricating oil can be splashed to the top of the box body, the production cost of the product is reduced, meanwhile, the product can adapt to the industrial and mining environment where a circulating pump cannot be installed, and the use experience of the product is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of speed reducer, specifically relates to an air cooling island fan speed reducer. BACKGROUND

[0002] In the related art, the input shaft of the speed reducer is connected with the driving device, and the output shaft of the speed reducer is connected with the fan, so that when the driving device works, the driving device drives the fan to rotate through the speed reducer, thereby achieving the effect of cooling.

[0003] The prior art (authorized announcement number: CN216009501U) discloses a speed reducer convenient for heat dissipation, which comprises a speed reducer body, a shaft coupling is arranged on the outer surface of the front end of the speed reducer body, a heat dissipation mechanism for improving the heat dissipation performance of the speed reducer body is arranged on the outer surface of the upper end of the speed reducer body, and a dustproof device for preventing dust and ash is arranged on the outer surface of the upper end of the heat dissipation mechanism. When heat is generated and gathered at the top of the speed reducer body after the speed reducer is started, the heat is transferred to the heat dissipation fins through the heat-conducting silicone grease coating, the heat of the speed reducer is transferred to the plurality of heat dissipation fins, the area of heat dissipation is increased, the fan is started, and air rapidly dissipates heat from the heat dissipation fins, so that the speed reducer body is conveniently heat dissipated, the stability of the device is improved, and the service life is increased.

[0004] In the prior art, when the lubricating oil is poured into the speed reducer body, a circulating pump needs to be additionally arranged to lubricate the parts at the top of the speed reducer body, thereby increasing the production cost of the product. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that in the prior art, a circulating pump needs to be additionally arranged to lubricate the parts at the top of the speed reducer body, thereby increasing the production cost of the product, the utility model provides an air cooling island fan speed reducer, which adopts a method that a flinger is sleeved on the outer side of the input shaft, so that when the input shaft rotates, the input shaft can drive the flinger to rotate in the lubricating oil, thereby bringing up and splashing the lubricating oil to the top of the box body to lubricate and cool the parts located at the top of the box body, and the effect that the lubricating oil can be splashed to the top of the box body without additionally arranging a circulating pump is achieved, thereby reducing the production cost of the product. The specific technical scheme is as follows:

[0006] The application discloses an air-cooled island fan speed reducer which comprises a box body, an input chamber, an input shaft, a first bevel gear, an intermediate shaft, a second bevel gear, a first external gear, an output shaft, a gear and an oil throwing disc.

[0007] In addition, the air-cooled island fan speed reducer provided by the application can have the following additional technical features.

[0008] In the technical scheme, the air-cooled island fan speed reducer further comprises a first bearing, a first bearing cover, a first spacer sleeve and an end plate; two first bearings are sleeved on two ends of the intermediate shaft and embedded in the box body; two first bearing covers are installed on upper and lower sidewalls of the box body and located on upper and lower sides of the intermediate shaft; two first spacer sleeves are located between the two first bearing covers and the intermediate shaft and simultaneously abut against the first bearings and the first bearing covers; and two end plates are connected with the two ends of the intermediate shaft and abut against the two first bearings.

[0009] In the technical scheme, the air-cooled island fan speed reducer further comprises an oil receiving box and a first oil guide groove; the oil receiving box is installed in the box body and located above the oil throwing disc; and the first oil guide groove sequentially penetrates through a sidewall of the oil receiving box, an inner wall of the box body and a sidewall of a first spacer sleeve.

[0010] In the technical scheme, the air-cooled island fan speed reducer further comprises a second bearing, a second spacer sleeve and a second bearing cover; two second bearings are sleeved on two ends of the output shaft and embedded in the box body; two second spacer sleeves are arranged around the outer side of the output shaft, one end of each of the two second spacer sleeves abuts against one of the two second bearings; and the second bearing cover is fixed on the upper and lower sidewalls of the box body and abuts against the two second spacer sleeves.

[0011] In the technical scheme, the air-cooled island fan speed reducer further comprises a second oil guide groove, an annular oil guide groove and a third oil guide groove; the second oil guide groove is arranged on the side wall of the oil receiving box and is located below the first oil guide groove; the annular oil guide groove is annular, is arranged in the box body, is arranged on the outer side of the first bearing and is in communication with the second oil guide groove; and the third oil guide groove passes through the side wall of the second spacer sleeve and the inner wall of the box body in sequence and is in communication with the annular oil guide groove.

[0012] In the technical scheme, the air-cooled island fan speed reducer further comprises a third bearing; two third bearing sleeves are arranged on the outer side of the input shaft, and the two third bearings are embedded in the input chamber; and a space is formed between the two third bearings.

[0013] In the technical scheme, the air-cooled island fan speed reducer further comprises a fourth oil guide groove, a fifth oil guide groove, a first oil injection groove, a second oil injection groove and an oil return groove; the fourth oil guide groove is arranged on the inner wall of the box body and is in communication with the oil receiving box; the fifth oil guide groove is arranged in the input chamber, is located above the input shaft and is in communication with the fourth oil guide groove; the first oil injection groove is arranged in the input chamber, one end of the first oil injection groove is in communication with the fifth oil guide groove, the other end of the first oil injection groove is in communication with the inside of the input chamber, and the first oil injection groove is located between the two third bearings; the second oil injection groove is arranged in the input chamber, one end of the second oil injection groove is in communication with the fifth oil guide groove, and the other end of the second oil injection groove is in communication with the inside of the input chamber; and the oil return groove is arranged in the input chamber, is located below the input shaft, one end of the oil return groove is in communication with the inside of the input chamber, and the other end of the oil return groove is in communication with the inside of the box body.

[0014] Compared with the prior art, the air-cooled island fan speed reducer has the beneficial effects that:

[0015] 1. The oil throwing disc is sleeved on the outer side of the input shaft, so that when the input shaft rotates, the input shaft can drive the oil throwing disc to rotate in the lubricating oil, thereby bringing up and splashing the lubricating oil to the top of the box body to lubricate and cool the components located at the top of the box body, thereby realizing that the lubricating oil can be splashed to the top of the box body without additionally arranging a circulating pump, reducing the production cost of the product, and enabling the product to adapt to the industrial and mining environment where the circulating pump cannot be installed, thereby improving the use experience of the product.

[0016] 2. The two first bearing covers are respectively arranged on the upper and lower side walls of the box body, and the first spacer sleeve is simultaneously attached to the first bearing and the first bearing cover, so that the box body supports the two first bearing covers, thereby fixing the first bearing in the box body through the first spacer sleeve and the first bearing cover, avoiding displacement of the first bearing, and improving the stability of the intermediate shaft rotation.

[0017] 3. By sequentially passing the first oil guide groove through the side wall of the oil receiving box, the inner wall of the box body and the side wall of a first spacer sleeve, the lubricating oil in the oil receiving box can flow through the box body and the first spacer sleeve in sequence through the first oil guide groove, so that the lubricating oil can flow above the first bearing, thereby achieving lubrication of the first bearing.

[0018] 4. By fixing two second bearing covers on the upper and lower side walls of the box body, the box body supports the two second bearing covers; by fitting the two second bearing covers with the two second spacer sleeves respectively, and fitting the two second spacer sleeves with the two second bearings respectively, the second bearing cover limits the second bearing through the second spacer sleeve, thereby avoiding displacement of the second bearing, further improving the stability of the output shaft rotation.

[0019] 5. By arranging the annular oil guide groove in the box body, the annular oil guide groove is arranged outside the first bearing, and the annular oil guide groove is in communication with the second oil guide groove, so that the lubricating oil flowing out of the second oil guide groove can flow into the annular oil guide groove, thereby flowing around the first bearing. By sequentially passing the third oil guide groove through the side wall of the second spacer sleeve and the inner wall of the box body, and making the third oil guide groove in communication with the annular oil guide groove, the lubricating oil in the annular oil guide groove can flow to the upper side of the second bearing through the third oil guide groove, thereby achieving lubrication of the second bearing.

[0020] 6. By arranging two third bearing sleeves outside the input shaft, and embedding the two third bearings into the input chamber, the input chamber supports the input shaft through the two third bearings, thereby improving the stability of the input shaft rotation.

[0021] 7. By arranging the first oil injection groove in the input chamber, one end of the first oil injection groove is in communication with the fifth oil guide groove, the other end of the first oil injection groove is in communication with the inside of the input chamber, and the first oil injection groove is located between the two third bearings, so that the lubricating oil in the fifth oil guide groove flows into the input chamber through the first oil injection groove, thereby achieving lubrication of the two third bearings. By arranging the second oil injection groove in the input chamber, one end of the second oil injection groove is in communication with the fifth oil guide groove, and the other end of the second oil injection groove is in communication with the inside of the input chamber, so that the lubricating oil in the fifth oil guide groove can flow into the input chamber through the second oil injection groove; by arranging the oil return groove in the input chamber, one end of the oil return groove is in communication with the inside of the input chamber, and the other end of the oil return groove is in communication with the inside of the box body, so that the lubricating oil in the input chamber flows back to the box body through the oil return groove, thereby achieving circulation of the lubricating oil in the box body. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1A sectional view of a fan speed reduction of the air cooling island of the utility model;

[0023] Figure 2 A Figure 1 A local enlarged view of A of the utility model;

[0024] Figure 3 A Figure 1 A local enlarged view of B of the utility model;

[0025] Wherein, Figures 1 to 3 The correspondence between the reference signs and the component names in the drawings is as follows:

[0026] 10 box, 11 input chamber, 12 input shaft, 13 first bevel gear, 14 intermediate shaft, 15 second bevel gear, 16 first external tooth, 17 output shaft, 18 gear, 19 oil throwing disc, 20 first bearing, 21 first bearing cover, 22 first spacer sleeve, 23 end plate, 24 oil receiving box, 25 first oil guide groove, 26 second bearing, 27 second spacer sleeve, 28 second bearing cover, 29 second oil guide groove, 30 annular oil guide groove, 31 third oil guide groove, 32 third bearing, 33 fourth oil guide groove, 34 fifth oil guide groove, 35 first oil injection groove, 36 second oil injection groove, 37 oil return groove. DETAILED DESCRIPTION

[0027] The utility model is further illustrated below by specific implementation examples and drawings. Figures 1 to 3 The utility model is further illustrated below by specific implementation examples and drawings.

[0028] A fan speed reduction machine of an air cooling island, like Figures 1 to 3As shown, the air-cooled island fan speed reducer comprises a box 10, an input chamber 11, an input shaft 12, a first bevel gear 13, an intermediate shaft 14, a second bevel gear 15, a first external tooth 16, an output shaft 17, a gear 18 and an oil throwing disc 19; the box 10 is a hollow cavity; the input chamber 11 is a hollow cavity, the input chamber 11 is installed on the side wall of the box 10, and the inside of the input chamber 11 is communicated with the inside of the box 10; at least part of the input shaft 12 is located in the input chamber 11, the input shaft 12 is rotatably connected with the input chamber 11, one end of the input shaft 12 is located in the box 10, and the other end of the input shaft 12 is located outside the input chamber 11; the first bevel gear 13 is connected with one end of the input shaft 12, and the first bevel gear 13 is located in the box 10; the intermediate shaft 14 is located in the box 10, the intermediate shaft 14 is rotatably connected with the box 10, and the intermediate shaft 14 is perpendicular to the input shaft 12; the second bevel gear 15 is sleeved outside the intermediate shaft 14, and the second bevel gear 15 is engaged with the first bevel gear 13; the first external tooth 16 is arranged on the outer wall of the intermediate shaft 14, and the first external tooth 16 is located below the second bevel gear 15; at least part of the output shaft 17 is located in the box 10, the output shaft 17 is rotatably connected with the box 10, one end of the output shaft 17 is located outside the box 10, and the output shaft 17 is located on one side of the intermediate shaft 14; the gear 18 is sleeved outside the output shaft 17, and the second external tooth of the gear 18 is engaged with the first external tooth 16; the oil throwing disc 19 is located in the box 10, and the oil throwing disc 19 is sleeved outside the input shaft 12.

[0029] The input chamber 11 is installed on the side wall of the box 10, and the inside of the input chamber 11 is communicated with the inside of the box 10, so that the box 10 supports the input chamber 11; at least part of the input shaft 12 is located in the input chamber 11, and the input shaft 12 is rotatably connected with the input chamber 11, so that the input chamber 11 supports the input shaft 12, so that the input shaft 12 can rotate in the input chamber 11; one end of the input shaft 12 is located in the box 10, the other end of the input shaft 12 is located outside the input chamber 11, and the first bevel gear 13 is connected with one end of the input shaft 12, so that the driving device can be connected with the input shaft 12 outside the input chamber 11, so as to drive the input shaft 12 to rotate, and then drive the first bevel gear 13 to rotate in the box 10. The intermediate shaft 14 is located in the box 10, and the intermediate shaft 14 is rotatably connected with the box 10, so that the box 10 supports the intermediate shaft 14, so that the intermediate shaft 14 can rotate in the box 10; the second bevel gear 15 is sleeved outside the intermediate shaft 14, and the second bevel gear 15 is engaged with the first bevel gear 13, so that when the input shaft 12 drives the first bevel gear 13 to rotate, the first bevel gear 13 drives the intermediate shaft 14 to rotate by engaging the second bevel gear 15, so that the intermediate shaft 14 rotates in the box 10; the first external tooth 16 is arranged on the outer wall of the intermediate shaft 14, and the first external tooth 16 is located below the second bevel gear 15, so that the intermediate shaft 14 rotates synchronously with the first external tooth 16. The output shaft 17 is rotatably connected with the box 10, and one end of the output shaft 17 is located outside the box 10, so that the box 10 supports the output shaft 17, so that the output shaft 17 can rotate in the box 10, so as to connect the load device with the output shaft 17; the gear 18 is sleeved outside the output shaft 17, and the second external tooth of the gear 18 is engaged with the first external tooth 16, so that when the intermediate shaft 14 drives the first external tooth 16 to rotate, the first external tooth 16 engages the gear 18 to rotate, so as to drive the output shaft 17 to rotate. The oil throwing disc 19 is sleeved outside the input shaft 12, and the oil throwing disc 19 is located in the box 10, so that the input shaft 12 can drive the oil throwing disc 19 to rotate, so that the oil throwing disc 19 can throw the lubricating oil stored in the box 10 to the top of the box 10, and then lubricate the components located at the top of the box 10.

[0030] In the specific use of the product, the driving device is connected with the input shaft 12, and the load device is connected with the output shaft 17; then, the lubricating oil is injected into the box body 10; then, the driving device is started, so that the driving device drives the input shaft 12 to rotate; when the input shaft 12 rotates, the input shaft 12 drives the intermediate shaft 14 to rotate through the first bevel gear 13 and the second bevel gear 15; when the intermediate shaft 14 rotates, the intermediate shaft 14 drives the output shaft 17 to rotate through the first external gear 16 and the gear 18, so that the output shaft 17 drives the load device to work normally. When the input shaft 12 rotates, the input shaft 12 rotates the oil throwing disc 19, so that at least part of the oil throwing disc 19 rotates in the lubricating oil, and then the lubricating oil is brought up and splashed to the top of the box body 10 to lubricate and cool the components located at the top of the box body 10.

[0031] With the above structure, the oil throwing disc 19 is sleeved on the outside of the input shaft 12, so that when the input shaft 12 rotates, the input shaft 12 can drive the oil throwing disc 19 to rotate in the lubricating oil, thereby bringing up the lubricating oil and splashing it to the top of the box body 10 to lubricate and cool the components located at the top of the box body 10, thereby realizing that the lubricating oil can be splashed to the top of the box body 10 without another circulating pump, thereby reducing the production cost of the product, and at the same time, the product can adapt to the industrial and mining environment where the circulating pump cannot be installed, thereby improving the use experience of the product.

[0032] In the embodiment of the utility model, as shown in Figures 1 to 3 The air-cooled island fan speed reducer further comprises: a first bearing 20, a first bearing cover 21, a first spacer sleeve 22 and an end plate 23; two first bearings 20 are respectively sleeved on the two ends of the intermediate shaft 14, and the two first bearings 20 are embedded in the box body 10; two first bearing covers 21 are respectively installed on the upper and lower two side walls of the box body 10, and the two first bearing covers 21 are respectively located on the upper and lower sides of the intermediate shaft 14; two first spacer sleeves 22 are respectively located between the two first bearing covers 21 and the intermediate shaft 14, and the first spacer sleeve 22 is simultaneously fitted with the first bearing 20 and the first bearing cover 21; two end plates 23 are respectively connected with the two ends of the intermediate shaft 14, and the two end plates 23 are respectively fitted with the two first bearings 20.

[0033] The two first bearings 20 are sleeved on the two ends of the intermediate shaft 14 respectively, and the two first bearings 20 are embedded in the box body 10, so that the box body 10 supports the intermediate shaft 14, thereby improving the stability of rotation of the intermediate shaft 14; the two first bearing covers 21 are installed on the upper and lower two side walls of the box body 10 respectively, and the first spacer sleeves 22 are in contact with the first bearings 20 and the first bearing covers 21 at the same time, so that the box body 10 supports the two first bearing covers 21, thereby fixing the first bearings 20 in the box body 10 through the first spacer sleeves 22, so as to avoid displacement of the first bearings 20, thereby improving the stability of rotation of the intermediate shaft 14; the two end plates 23 are connected with the two ends of the intermediate shaft 14 respectively, and the two end plates 23 are in contact with the two first bearings 20 respectively, so that the end plates 23 fix the first bearings 20 on the outer side of the intermediate shaft 14, thereby avoiding relative displacement between the intermediate shaft 14 and the first bearings 20, so as to improve the use experience of the product.

[0034] In the embodiment of the utility model, as shown in Figures 1 to 3 The air-cooled island fan speed reducer further comprises an oil receiving box 24 and a first oil guide groove 25; the oil receiving box 24 is installed in the box body 10, and the oil receiving box 24 is located above the oil throwing disc 19; the first oil guide groove 25 sequentially penetrates the side wall of the oil receiving box 24, the inner wall of the box body 10 and the side wall of a first spacer sleeve 22.

[0035] The oil receiving box 24 is installed in the box body 10, and the oil receiving box 24 is located above the oil throwing disc 19, so that when the oil throwing disc 19 brings up and splashes lubricating oil to the top of the box body 10, the oil receiving box 24 can receive and contain the lubricating oil; the first oil guide groove 25 sequentially penetrates the side wall of the oil receiving box 24, the inner wall of the box body 10 and the side wall of a first spacer sleeve 22, so that the lubricating oil in the oil receiving box 24 can flow through the box body 10 and the first spacer sleeve 22 in sequence through the first oil guide groove 25, thereby realizing that the lubricating oil can flow above the first bearing 20, and further realizing lubrication of the first bearing 20.

[0036] In the embodiment of the utility model, as shown in Figures 1 to 3 The air-cooled island fan speed reducer further comprises a second bearing 26, a second spacer sleeve 27 and a second bearing cover 28; the two second bearings 26 are sleeved on the two ends of the output shaft 17 respectively, and the two second bearings 26 are embedded in the box body 10; the two second spacer sleeves 27 are arranged on the outer side of the output shaft 17 respectively, one end of the two second spacer sleeves 27 is in contact with the two second bearings 26 respectively; the second bearing cover 28 is fixed on the upper and lower two side walls of the box body 10 respectively, and the two second bearing covers 28 are in contact with the two second spacer sleeves 27 respectively.

[0037] The two second bearings 26 are sleeved on the two ends of the output shaft 17 respectively, and the two second bearings 26 are embedded in the box body 10, so that the box body 10 supports the output shaft 17 through the two second bearings 26, and the stability of the rotation of the output shaft 17 is improved; the two second bearing covers 28 are fixed on the upper and lower two side walls of the box body 10 respectively, so that the box body 10 supports the two second bearing covers 28; the two second bearing covers 28 are attached to the two second spacers 27 respectively, and the two second spacers 27 are attached to the two second bearings 26 respectively, so that the second bearing cover 28 limits the second bearing 26 through the second spacer 27, thereby avoiding displacement of the second bearing 26, and further improving the stability of the rotation of the output shaft 17.

[0038] In the embodiment of the utility model, as shown in Figures 1 to 3 The air-cooled island fan speed reducer further comprises a second oil guide groove 29, an annular oil guide groove 30 and a third oil guide groove 31; the second oil guide groove 29 is arranged on the side wall of the oil receiving box 24, and the second oil guide groove 29 is located below the first oil guide groove 25; the annular oil guide groove 30 is annular, the annular oil guide groove 30 is arranged in the box body 10, the annular oil guide groove 30 is arranged on the outer side of the first bearing 20, and the annular oil guide groove 30 is in communication with the second oil guide groove 29; the third oil guide groove 31 passes through the side wall of the second spacer 27 and the inner wall of the box body 10 in sequence, and the third oil guide groove 31 is in communication with the annular oil guide groove 30.

[0039] The second oil guide groove is arranged on the side wall of the oil receiving box 24, and the second oil guide groove 29 is located below the first oil guide groove 25, so that the lubricating oil in the oil receiving box 24 can flow out through the second oil guide groove; the annular oil guide groove 30 is arranged in the box body 10, the annular oil guide groove 30 is arranged on the outer side of the first bearing 20, and the annular oil guide groove 30 is in communication with the second oil guide groove 29, so that the lubricating oil flowing out through the second oil guide groove 29 can flow into the annular oil guide groove 30 and flow around the first bearing 20. The third oil guide groove 31 passes through the side wall of the second spacer 27 and the inner wall of the box body 10 in sequence, and the third oil guide groove 31 is in communication with the annular oil guide groove 30, so that the lubricating oil in the annular oil guide groove 30 can flow to the upper side of the second bearing 26 through the third oil guide groove 31, thereby lubricating the second bearing 26.

[0040] In the embodiment of the utility model, as shown in Figures 1 to 3 The air-cooled island fan speed reducer further comprises a third bearing 32; the two third bearings 32 are sleeved on the outer side of the input shaft 12, and the two third bearings 32 are embedded in the input chamber 11; wherein the two third bearings 32 are spaced apart.

[0041] By sleeving two third bearings 32 outside the input shaft 12 and embedding the two third bearings 32 into the input chamber 11, the input chamber 11 supports the input shaft 12 through the two third bearings 32, thereby improving the stability of rotation of the input shaft 12.

[0042] In the embodiment of the utility model, as shown in the figure, Figures 1 to 3 As shown in the figure, the air-cooled island fan speed reducer further comprises a fourth oil guide groove 33, a fifth oil guide groove 34, a first oil injection groove 35, a second oil injection groove 36 and an oil return groove 37; the fourth oil guide groove 33 is arranged on the inner wall of the box body 10 and is in communication with the oil receiving box 24; the fifth oil guide groove 34 is arranged in the input chamber 11 and is located above the input shaft 12 and is in communication with the fourth oil guide groove 33; the first oil injection groove 35 is arranged in the input chamber 11, one end of the first oil injection groove 35 is in communication with the fifth oil guide groove 34, the other end of the first oil injection groove 35 is in communication with the inside of the input chamber 11, and the first oil injection groove 35 is located between the two third bearings 32; the second oil injection groove 36 is arranged in the input chamber 11, one end of the second oil injection groove 36 is in communication with the fifth oil guide groove 34, and the other end of the second oil injection groove 36 is in communication with the inside of the input chamber 11; the oil return groove 37 is arranged in the input chamber 11, the oil return groove 37 is located below the input shaft 12, one end of the oil return groove 37 is in communication with the inside of the input chamber 11, and the other end of the oil return groove 37 is in communication with the inside of the box body 10.

[0043] The fourth oil guide groove 33 is arranged on the inner wall of the box body 10 and communicates with the oil receiving box 24, so that the lubricating oil stored in the oil receiving box 24 can flow into the fourth oil guide groove 33; the fifth oil guide groove 34 is arranged in the input chamber 11 and communicates with the fourth oil guide groove 33, so that the lubricating oil in the fourth oil guide groove 33 can flow into the fifth oil guide groove 34; the first oil injection groove 35 is arranged in the input chamber 11, one end of the first oil injection groove 35 communicates with the fifth oil guide groove 34, the other end of the first oil injection groove 35 communicates with the inside of the input chamber 11, and the first oil injection groove 35 is located between the two third bearings 32, so that the lubricating oil in the fifth oil guide groove 34 can flow into the input chamber 11 through the first oil injection groove 35, thereby achieving the lubrication of the two third bearings 32. The second oil injection groove 36 is arranged in the input chamber 11, one end of the second oil injection groove 36 communicates with the fifth oil guide groove 34, and the other end of the second oil injection groove 36 communicates with the inside of the input chamber 11, so that the lubricating oil in the fifth oil guide groove 34 can flow into the input chamber 11 through the second oil injection groove 36; the oil return groove 37 is arranged in the input chamber 11, one end of the oil return groove 37 communicates with the inside of the input chamber 11, and the other end of the oil return groove 37 communicates with the inside of the box body 10, so that the lubricating oil in the input chamber 11 can flow back to the box body 10 through the oil return groove 37, thereby achieving the circulation of the lubricating oil in the box body 10.

[0044] In the description of the present application, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited, the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application; the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fan speed reducer for an air-cooled island, characterized in that, The air-cooled island fan reducer includes: The housing is a hollow cavity; An input chamber, which is a hollow cavity, is installed on the side wall of the housing, and the interior of the input chamber is connected to the interior of the housing; An input shaft, at least a portion of which is located within the input chamber, is rotatably connected to the input chamber, with one end of the input shaft located inside the housing and the other end located outside the input chamber; A first bevel gear is connected to one end of the input shaft and is located inside the housing. An intermediate shaft is located inside the housing, is rotatably connected to the housing, and is perpendicular to the input shaft. The second bevel gear is mounted on the outside of the intermediate shaft and meshes with the first bevel gear. The first external tooth is disposed on the outer wall of the intermediate shaft and is located below the second bevel gear; An output shaft, at least a portion of which is located within the housing, is rotatably connected to the housing, with one end of the output shaft located outside the housing and the output shaft located on one side of the intermediate shaft; A gear, wherein a second external tooth is provided on the outer wall of the gear, the gear is fitted on the outside of the output shaft, and the second external tooth of the gear meshes with the first external tooth; An oil slinger is located inside the housing and is fitted onto the outside of the input shaft. The first bearing, two first bearings are respectively mounted on both ends of the intermediate shaft, and the two first bearings are embedded in the housing; The first bearing cover, two first bearing covers are respectively installed on the upper and lower side walls of the housing, and the two first bearing covers are respectively located on the upper and lower sides of the intermediate shaft; The first spacer, the two first spacers are respectively located between the two first bearing caps and the first bearing, and the first spacers are simultaneously in contact with the intermediate shaft and the first bearing cap; The two end plates are respectively connected to both ends of the intermediate shaft, and the two end plates are respectively attached to the two first bearings; An oil receiving box is installed inside the housing and is located above the oil slinger. The first oil guide groove passes sequentially through the side wall of the oil receiving box, the inner wall of the box body, and the side wall of the first partition sleeve. The second oil guide groove is disposed on the side wall of the oil receiving box and is located below the first oil guide groove; An annular oil guide groove, the annular oil guide groove being annular in shape, the annular oil guide groove being disposed inside the housing, the annular oil guide groove being arranged around the outside of the first bearing, and the annular oil guide groove being connected to the second oil guide groove; The third oil guide groove passes through the side wall of the second partition and the inner wall of the box in sequence, and the third oil guide groove is connected to the annular oil guide groove.

2. The air-cooled island fan reducer according to claim 1, characterized in that, The air-cooled island fan reducer also includes: The second bearings are respectively mounted on both ends of the output shaft and embedded in the housing. The second spacer, the two second spacers are respectively wrapped around the outside of the output shaft, and one end of the two second spacers is respectively attached to the two second bearings; The second bearing cover is fixed on the upper and lower side walls of the housing, and the two second bearing covers are respectively attached to the two second spacers.

3. The air-cooled island fan reducer according to claim 2, characterized in that, The air-cooled island fan reducer also includes: The third bearing, two of which are mounted on the outside of the input shaft and embedded in the input cavity; There is a gap between the two third bearings.

4. The air-cooled island fan reducer according to claim 3, characterized in that, The air-cooled island fan reducer also includes: A fourth oil guide groove is provided on the inner wall of the housing and is connected to the oil receiving box. The fifth oil guide groove is disposed in the input chamber, located above the input shaft, and is connected to the fourth oil guide groove. The first oil injection groove is disposed in the input chamber. One end of the first oil injection groove is connected to the fifth oil guide groove, and the other end of the first oil injection groove is connected to the interior of the input chamber. The first oil injection groove is located between the two third bearings. The second oil injection groove is disposed in the input chamber. One end of the second oil injection groove is connected to the fifth oil guide groove, and the other end of the second oil injection groove is connected to the interior of the input chamber. An oil return groove is provided in the input chamber and located below the input shaft. One end of the oil return groove is connected to the interior of the input chamber, and the other end of the oil return groove is connected to the interior of the housing.

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