Gearbox and transmission system comprising same

Abstract

The embodiment of the invention discloses a gear box and a transmission system comprising the gear box, the gear box comprises a box body, a gear assembly and an oil collecting assembly, and the box body is provided with a containing cavity; the gear assembly is rotationally arranged in the containing cavity and comprises a large gear and a small gear which are meshed with each other. And the oil collecting assembly is arranged between the gear assembly and the top of the box body, is provided with at least one oil outlet, and is used for reducing and collecting lubricating oil splashed during rotation of the gear assembly and enabling the collected lubricating oil to flow to the gear assembly through the oil outlet so as to lubricate the gear assembly. The gear box provided by the embodiment of the invention is high in working efficiency, long in service life and low in energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of gear boxes, and in particular to a gear box and a transmission system comprising the gear box. Background Art

[0002] The gearbox is an important component in the mechanical transmission system, and its operating performance is directly related to the operating efficiency and reliability of the transmission device. However, in the related art, the gearbox has low working efficiency, short service life, and high energy consumption, which leads to a decrease in the operating efficiency and reliability of the mechanical transmission system. Summary of the invention

[0003] The technical problems to be solved by the embodiments of the present invention are low working efficiency, short service life and high energy consumption of the gearbox.

[0004] In order to solve the above problems, an embodiment of the present invention provides a gearbox, comprising:

[0005] A box body having a containing cavity;

[0006] a gear assembly rotatably disposed in the accommodating cavity, the gear assembly comprising a large gear and a small gear meshing with each other; and,

[0007] An oil collecting assembly is arranged between the gear assembly and the top of the casing, and has at least one oil outlet. The oil collecting assembly is used to reduce and collect the lubricating oil splashed by the rotation of the gear assembly, and allows the collected lubricating oil to flow to the gear assembly through the oil outlet to lubricate the gear assembly.

[0008] In some possible implementations of the present invention, the oil collecting assembly includes:

[0009] A first oil collecting member is disposed between the large gear and the top of the housing, the first oil collecting member being protruding in a direction away from the large gear; and

[0010] A second oil collecting member is disposed between the pinion gear and the top of the housing, and the second oil collecting member is protruded in a direction away from the pinion gear;

[0011] Wherein, the at least one oil outlet is located at least one of the first oil collecting member, the second oil collecting member, and between the first oil collecting member and the second oil collecting member.

[0012] In some possible implementations of the present invention, a first oil collecting groove is provided on a surface of the first oil collecting member away from the large gear along the circumferential direction of the large gear;

[0013] And / or, a second oil collecting groove is provided on a surface of the second oil collecting member away from the pinion gear along the circumferential direction of the pinion gear;

[0014] And / or, a third oil collecting groove is formed at the connection portion between the first oil collecting member and the second oil collecting member.

[0015] In some possible implementations of the present invention, the third oil collecting tank is respectively connected to the first oil collecting tank and the second oil collecting tank, and at least one oil outlet is provided in the third oil collecting tank.

[0016] In some possible implementations of the present invention, the first oil collecting member includes two first arc-shaped portions connected to each other, and the connecting portion of the two first arc-shaped portions forms the first oil collecting groove;

[0017] And / or, the second oil collecting member includes second arc-shaped portions connected to each other, and a connecting portion of two second arc-shaped portions forms the second oil collecting groove.

[0018] In some possible implementations of the present invention, the gearbox further includes:

[0019] A first baffle is provided on a surface of a connection portion between the first oil collecting member and the second oil collecting member facing the gear assembly; and

[0020] A second baffle is provided on a surface of the connecting portion of the first oil collecting member and the second oil collecting member facing the gear assembly;

[0021] Wherein, the meshing position of the large gear and the small gear is located between the first baffle plate and the second baffle plate.

[0022] In some possible implementations of the present invention, the gearbox further includes a heat dissipation component disposed around the box body.

[0023] In some possible embodiments of the present invention, the heat dissipation component includes a plurality of heat dissipation pipes for coolant to flow through, the plurality of heat dissipation pipes are arranged at intervals along a first direction, the heat dissipation pipes include a first pipe segment, a second pipe segment and a third pipe segment, the second pipe segment is connected between the first pipe segment and the second pipe segment, wherein the second pipe segment is located in the box body, and the box body is located between the first pipe segment and the third pipe segment.

[0024] In some possible implementations of the present invention, the heat dissipation component further includes:

[0025] A plurality of first heat dissipation fins are arranged in contact with the first outer surface of the box body, the plurality of first heat dissipation fins are arranged at intervals along the second direction, the first heat dissipation fins are provided with a plurality of first limiting holes arranged at intervals, and each of the first limiting holes corresponds to one of the first pipe sections;

[0026] A plurality of second heat dissipation fins are arranged in contact with the first outer surface of the box body, the plurality of second heat dissipation fins are arranged at intervals along the second direction, the second heat dissipation fins are provided with a plurality of second limiting holes arranged at intervals, and each of the second limiting holes corresponds to one of the third pipe sections;

[0027] The first outer surface and the second outer surface are arranged opposite to each other, and the first direction and the second direction are arranged to intersect each other.

[0028] In some possible implementations of the present invention, the cross-sectional shape of the first heat dissipating fin is a first trapezoid, and the wide side of the first trapezoid is arranged in contact with the first outer surface of the box body;

[0029] And / or, the cross-sectional shape of the second heat dissipating fin is a second trapezoid, and the wide side of the second trapezoid is arranged in contact with the second outer surface of the box body.

[0030] An embodiment of the present invention further provides a transmission system, comprising the gearbox described in any one of the above embodiments.

[0031] Compared with the prior art, the technical effects achieved by the embodiments of the present invention include:

[0032] The gearbox provided in the embodiment of the present invention comprises a housing, a gear assembly and an oil collecting assembly, wherein the housing has a containing cavity; the gear assembly is rotatably arranged in the containing cavity, and the gear assembly comprises a large gear and a small gear meshing with each other; the oil collecting assembly is arranged between the gear assembly and the top of the housing, and the oil collecting assembly has at least one oil outlet, and the oil collecting assembly is used to reduce and collect the lubricating oil splashed by the rotation of the gear assembly, and make the collected lubricating oil flow to the gear assembly through the oil outlet to lubricate the gear assembly. In the above technical scheme, the oil collecting assembly is arranged between the gear assembly and the top of the housing, and when the gear assembly is running, the oil collecting assembly can effectively collect the lubricating oil splashed by the rotation of the gear assembly, and guide the lubricating oil back to the gear assembly through the oil outlet to effectively lubricate the gear assembly, thereby improving the working efficiency and service life of the gearbox. Moreover, the oil collecting assembly is arranged between the gear assembly and the top of the housing, which can also reduce the splashing of the lubricating oil, thereby reducing the oil stirring loss of the gear assembly, and realizing the reduction of energy consumption of the gearbox. Therefore, the gearbox provided by the embodiment of the present invention has high working efficiency, long service life and low energy consumption, and can be applied to mechanical transmission systems to improve their operating efficiency and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0036] Figure 1 A schematic diagram of the structure of a gearbox provided by some embodiments of the present invention is shown;

[0037] Figure 2 A schematic diagram showing the structure of a gear assembly and an oil collecting assembly in a gear box provided by some embodiments of the present invention is shown;

[0038] Figure 3 A schematic diagram of the top view of the oil collecting assembly in the gear box provided by some embodiments of the present invention is shown;

[0039] Figure 4 A rear view structural schematic diagram of an oil collecting assembly in a gearbox provided by some embodiments of the present invention is shown;

[0040] Figure 5 Schematic diagrams of exploded structures of gear boxes provided in other embodiments of the present invention are shown;

[0041] Figure 6 Shows a schematic structural diagram of a gearbox provided by other embodiments of the present invention;

[0042] Figure 7 A schematic diagram showing the structure of a heat dissipation pipeline in a gear box provided by other embodiments of the present invention is shown;

[0043] Figure 8 A schematic structural diagram of a first heat dissipating fin in a gear box provided in some other embodiments of the present invention is shown.

[0044] Reference numerals

[0045] 10- Gear box;

[0046] 100- cabinet;

[0047] 200-gear assembly;

[0048] 210-large gear;

[0049] 220-pinion;

[0050] 300-Oil collecting assembly;

[0051] 310-first oil collecting part;

[0052] 311- first arc portion;

[0053] 312-first oil collecting tank;

[0054] 320-second set of oil parts;

[0055] 321- second arc portion;

[0056] 322-second oil collecting tank;

[0057] 330-the third oil tank;

[0058] 340- oil outlet;

[0059] 400-first baffle;

[0060] 500-second baffle;

[0061] 600-heat dissipation component;

[0062] 610-heat dissipation pipe;

[0063] 611- first pipe section;

[0064] 612-second pipe section;

[0065] 613-the third pipe section;

[0066] 620-first heat dissipation fin;

[0067] 621-first limiting hole;

[0068] 630- second heat dissipation fin;

[0069] 631-second limiting hole. DETAILED DESCRIPTION

[0070] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0072] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0073] In mechanical equipment such as industrial reducers (such as reducers in conveyor belts, mining equipment, cranes and other mechanical equipment), wind power generation equipment, automobiles and rail transportation vehicles (such as automobiles and subways, trains and other transportation vehicles), aerospace equipment (such as aircraft engines, etc.) and ship and marine engineering equipment, especially for mechanical equipment running at high speed and high load, there are higher requirements for the lubrication and heat dissipation of their mechanical transmission systems, and these requirements will affect their operating efficiency and reliability, and thus directly affect the operating efficiency and service life of the mechanical equipment. Therefore, the mechanical transmission system is required to have higher lubrication and heat dissipation effects.

[0074] In a mechanical transmission system, the operating performance of the gearbox is directly related to the operating efficiency and reliability of the mechanical transmission system, and the operating performance of the gearbox is closely related to its lubrication method. In the related art, the gearbox adopts oil immersion lubrication, that is, the gear assembly in the gearbox is completely immersed in lubricating oil, which can reduce friction, cool the gears, and extend the service life of the gears. However, the rotation of the gear assembly will stir the lubricating oil at the bottom of the box, causing a large amount of lubricating oil to splash in the gearbox, resulting in uneven lubrication of the gears and increased oil stirring losses, resulting in low working efficiency, short service life, and high energy consumption of the gearbox, thereby causing the operating efficiency and reliability of the mechanical transmission system to decrease.

[0075] In view of this, an embodiment of the present invention provides a gearbox and a transmission system including the gearbox, wherein the gearbox has high working efficiency, long service life and low energy consumption.

[0076] See also Figure 1As shown, an embodiment of the present invention provides a gearbox 10, including a housing 100, a gear assembly 200 and an oil collecting assembly 300, wherein the housing 100 has a containing cavity; the gear assembly 200 is rotatably disposed in the containing cavity, and the gear assembly 200 includes a large gear 210 and a small gear 220 that mesh with each other; the oil collecting assembly 300 is disposed between the gear assembly 200 and the top of the housing 100, and the oil collecting assembly 300 has at least one oil outlet 340, and the oil collecting assembly 300 is used to reduce and collect the lubricating oil splashed by the rotation of the gear assembly 200, and allow the collected lubricating oil to flow to the gear assembly 200 through the oil outlet 340 to lubricate the gear assembly 200.

[0077] Herein, the large gear 210 refers to a gear with a relatively large addendum diameter in the gear assembly 200 , and the small gear 220 refers to a gear with a relatively small addendum diameter in the gear assembly 200 .

[0078] In the gearbox 10 provided in the embodiment of the present invention, the oil collecting assembly 300 is disposed between the gear assembly 200 and the top of the housing 100. When the gear assembly 200 is running, the oil collecting assembly 300 can effectively collect the lubricating oil splashed by the rotation of the gear assembly 200, and guide the lubricating oil back to the gear assembly 200 through the oil outlet 340 to effectively lubricate the gear assembly 200, thereby improving the working efficiency and service life of the gearbox 10. Moreover, the oil collecting assembly 300 is disposed between the gear assembly 200 and the top of the housing 100, which can also reduce the splashing of the lubricating oil, thereby reducing the oil stirring loss of the gear assembly 200, and realizing the reduction of energy consumption of the gearbox 10.

[0079] In the above embodiment, the gearbox 10 also includes some conventional components well known in the art, such as a transmission shaft, etc., and the embodiments of the present invention will not be described in detail herein.

[0080] In the embodiment of the present invention, the oil collecting assembly 300 is disposed between the gear assembly 200 and the top of the housing 100. It can be understood that the oil collecting assembly 300 divides the housing chamber of the housing 100 into two, that is, the oil collecting assembly 300 and the bottom of the housing 100 form a first housing chamber for containing lubricating oil and the gear assembly 200, and the oil collecting assembly 300 and the top of the housing 100 form a second housing chamber, and there is a gap between the oil collecting assembly 300 and the side wall of the housing 100, and the splashing lubricating oil generated by the rotation of the gear assembly 200 enters the second housing chamber through the above gap. The oil collecting assembly 300 can collect the lubricating oil entering the second housing chamber and guide the lubricating oil back to the surface of the gear assembly 200 through the oil outlet 340, which helps to evenly lubricate the gear assembly 200. In order to increase the rate at which the lubricating oil collected by the oil collecting assembly 300 flows to the gear assembly 200, so as to maintain the large gear 210 and the small gear 220 in a good lubrication state to improve the working efficiency and service life of the gear box 10, the structure of the oil collecting assembly 300 can be improved.

[0081] See also Figure 2 As shown, in some embodiments of the present invention, the oil collecting assembly 300 includes a first oil collecting member 310 and a second oil collecting member 320, the first oil collecting member 310 is arranged between the large gear 210 and the top of the housing 100, and the first oil collecting member 310 protrudes in the direction away from the large gear 210; the second oil collecting member 320 is arranged between the small gear 220 and the top of the housing 100, and the second oil collecting member 320 protrudes in the direction away from the small gear 220; wherein, at least one oil outlet 340 is located at least one of the first oil collecting member 310, the second oil collecting member 320 and the space between the first oil collecting member 310 and the second oil collecting member 320.

[0082] In the above embodiment, the splashing lubricating oil generated by the rotation of the large gear 210 and the small gear 220 are collected by the first oil collecting member 310 and the second oil collecting member 320 respectively, and then respectively led back to the corresponding gear surfaces through the oil outlet 340. In addition, the first oil collecting member 310 is protruded in the direction away from the large gear 210 and the second oil collecting member 320 is protruded in the direction away from the small gear 220, which can accelerate the collected lubricating oil to flow to the oil outlet 340, and then flow to the surface of the gear assembly 200 through the oil outlet 340, which helps to keep the gear assembly 200 in a better lubricated state.

[0083] In addition, the location and number of the oil outlets 340 can also help the lubricating oil collected by the oil collecting assembly 300 to quickly flow to the surface of the gear assembly 200, further helping it to maintain a better lubricated state.

[0084] In some embodiments of the present invention, the first oil collecting member 310 has a plurality of oil outlets 340 arranged at intervals, and the oil outlets 340 are arranged opposite to the gear assembly 200; the second oil collecting member 320 also has a plurality of oil outlets 340 arranged at intervals, and the oil outlets 340 are arranged opposite to the gear assembly 200. The arrangement of the above-mentioned oil outlets 340 allows the lubricating oil collected by the oil collecting member to flow directly to the surfaces of the large gear 210 and the small gear 220 through the oil outlets 340, thereby improving the lubrication effect, thereby improving the working efficiency and service life of the gearbox 10.

[0085] It should be noted that other components in the gearbox 10 that need lubrication may also be provided with oil outlets 340 in the corresponding areas of the oil collecting assembly 300. For example, the oil collecting assembly 300 is provided with an oil outlet 340 in an area close to the inner surface of the housing 100, and the oil outlet 340 is provided opposite to the transmission shaft, which can reduce unnecessary friction between the transmission shaft and other components, thereby reducing energy consumption.

[0086] In other embodiments of the present invention, a plurality of oil outlets 340 may be spaced apart between the first oil collecting member 310 and the second oil collecting member 320. The lubricating oil collected by the oil collecting member flows directly to the meshing portion of the large gear 210 and the small gear 220 through the above-mentioned oil outlets 340. This can further maintain the meshing portion of the large gear 210 and the small gear 220 in a better lubricated state, thereby helping to improve the working efficiency and service life of the gearbox 10.

[0087] In the above embodiment, the shape of the oil outlet 340 is not particularly limited, and can be any shape, such as circular, elliptical, square, etc.

[0088] In some embodiments of the present invention, the width of the first oil collecting member 310 along the thickness direction of the large gear 210 is greater than or equal to the thickness of the large gear 210, and the width of the second oil collecting member 320 along the thickness direction of the small gear 220 is greater than or equal to the thickness of the small gear 220. This can increase the amount of lubricating oil collected, and then flow to the surface of the gear through the oil outlet 340, which can further help the gear maintain a better lubrication state.

[0089] See also Figure 3 As shown, in some embodiments of the present invention, a first oil collecting member 310 is provided with a first oil collecting groove 312 along the circumferential direction of the large gear 210 on a surface away from the large gear 210; and / or, a second oil collecting member 320 is provided with a second oil collecting groove 322 along the circumferential direction of the small gear 220 on a surface away from the small gear 220; and / or, a third oil collecting groove 330 is formed at the connection portion between the first oil collecting member 310 and the second oil collecting member 320.

[0090] In the above embodiment, by providing the first oil collecting groove 312 , the second oil collecting groove 322 and the third oil collecting groove 330 , the collection rate of the lubricating oil can be accelerated, so that the collected lubricating oil can effectively wet the gear surface through the oil outlet 340 .

[0091] Furthermore, in some embodiments of the present invention, the third oil collecting tank 330 is connected to the first oil collecting tank 312 and the second oil collecting tank 322 respectively, and at least one oil outlet 340 is disposed in the third oil collecting tank 330 .

[0092] In the above embodiment, it can be understood that the third oil collecting groove 330 is arranged opposite to the meshing part of the large gear 210 and the small gear 220. This can help the lubricating oil collected by the third oil collecting groove 330 to flow directly to the meshing part of the large gear 210 and the small gear 220, forming an effective lubricating film to separate the tooth surfaces, reducing the occurrence of direct contact between the materials of the meshing tooth surfaces, and taking away the heat generated by friction, thereby helping to improve the working efficiency and service life of the gears.

[0093] In addition, the structures of the first oil collecting member 310 and the second oil collecting member 320 may be improved to further improve the collection efficiency of the lubricating oil.

[0094] Please continue reading Figure 3 As shown, in some embodiments of the present invention, the first oil collecting member 310 includes two first arc-shaped portions 311 connected to each other, and the connecting portion of the two first arc-shaped portions 311 forms a first oil collecting groove 312; and / or, the second oil collecting member 320 includes two second arc-shaped portions 321 connected to each other, and the connecting portion of the two second arc-shaped portions 321 forms the second oil collecting groove 322.

[0095] In the above embodiment, a first oil collecting groove 312 is formed between the two first arc-shaped portions 311, which can quickly collect the splashing lubricating oil generated by the rotation of the large gear 210 into the first oil collecting groove 312, and flow to the surface of the large gear 210 through the oil outlet 340, so that it can maintain a good lubrication state; similarly, the second oil collecting groove 322 can also quickly collect the splashing lubricating oil generated by the rotation of the small gear 220 into the second oil collecting groove 322, and flow to the surface of the small gear 220 through the oil outlet 340, so that it can maintain a good lubrication state. Both the large gear 210 and the small gear 220 are kept in a good lubrication state, which can help improve the working efficiency and service life of the gearbox 10.

[0096] In addition, the ends of the two first arc-shaped portions 311 away from the connection portion are respectively connected to the inner wall surface of the housing 100, so that the splashing lubricating oil generated by the rotation of the two side surfaces of the large gear 210 can hit the surface of the first arc-shaped portion 311 facing the large gear 210 and flow down along the inner wall surface of the housing 100, which further helps to reduce the oil stirring loss and further reduce the energy consumption. Similarly, the ends of the two second arc-shaped portions 321 away from the connection portion are also respectively connected to the inner wall surface of the housing 100, further reducing the energy consumption of the gearbox 10.

[0097] For further information, see Figure 4 As shown, in some embodiments of the present invention, the gearbox 10 also includes a first baffle 400 and a second baffle 500, the first baffle 400 is arranged on the surface of the gear assembly 200 facing the connection portion of the first oil collecting member 310 and the second oil collecting member 320; the second baffle 500 is arranged on the surface of the gear assembly 200 facing the connection portion of the first oil collecting member 310 and the second oil collecting member 320; wherein the meshing portion of the large gear 210 and the small gear 220 is located between the first baffle 400 and the second baffle 500.

[0098] In the above embodiment, the first baffle 400 and the second baffle 500 are arranged so that the splashing lubricating oil generated by the rotation of the large and small gears 220 hits both sides of the baffle and flows down along the baffle. This can reduce the oil stirring loss while ensuring the lubrication of the gears, thereby further helping to improve the working efficiency and service life of the gearbox 10 and reduce energy consumption.

[0099] In the gearbox 10 provided in the embodiment of the present invention, its structure can be further improved to ensure that the gears can be fully lubricated while reducing the probability of lubricating oil deterioration caused by excessive temperature in the gearbox 10, so that the gearbox 10 can be used in the transmission system to improve its operating efficiency and reliability.

[0100] In some embodiments of the present invention, the gearbox 10 further includes a heat dissipation assembly 600 , which is disposed around the housing 100 .

[0101] For further information, see Figure 5-7 As shown, in some embodiments of the present invention, the heat dissipation component 600 includes a plurality of heat dissipation pipes 610 for coolant to flow through, the plurality of heat dissipation pipes 610 are arranged at intervals along a first direction, the heat dissipation pipes 610 include a first pipe segment 611, a second pipe segment 612 and a third pipe segment 613, the second pipe segment 612 is connected between the first pipe segment 611 and the second pipe segment 612, wherein the second pipe segment 612 is located in the box body 100, and the box body 100 is located between the first pipe segment 611 and the third pipe segment 613.

[0102] It can be understood that the cross-section of the heat dissipation pipe 610 in the above embodiment is U-shaped. When the gear assembly 200 rotates to generate heat, the coolant can be passed into the heat dissipation pipe 610, and the second pipe section 612 is immersed in the lubricating oil at the bottom of the box body 100. At this time, the heat in the box body 100 is transferred to the second pipe section 612 through heat conduction, and the coolant flowing to the second pipe section 612 absorbs heat and undergoes a phase change, that is, the liquid evaporates into a gaseous state to form a gas, and the gas diffuses from the second pipe section 612 to the first pipe section 611 and the third pipe section 613. Since the first pipe section 611 and the third pipe are placed outside the box body 100, that is, exposed to the air, the temperature of the outside air is relatively low, and the gas flowing into the first pipe section 611 and the third pipe section 613 will conduct heat to the pipe wall and gradually cool down. Moreover, the gas in the first pipe section 611 and the third pipe section 613 exchanges heat with the outside air through natural convection and radiation, so that its temperature is reduced, and then condensation occurs, that is, the gas turns back into liquid. After condensation, it forms liquid and flows back along the pipe wall to the second pipe section 612 to form a circulation, thereby effectively reducing the temperature of the box body 100.

[0103] For further information, see Figure 6 and Figure 8As shown, in some embodiments of the present invention, the heat dissipation assembly 600 also includes a plurality of first heat dissipation fins 620 and a plurality of second heat dissipation fins 630, the plurality of first heat dissipation fins 620 are arranged in contact with the first outer surface of the housing 100, the plurality of first heat dissipation fins 620 are arranged at intervals along the second direction, the first heat dissipation fins 620 are provided with a plurality of first limiting holes 621 arranged at intervals, and each first limiting hole 621 corresponds to a first pipe segment 611; the plurality of second heat dissipation fins 630 are arranged in contact with the first outer surface of the housing 100, the plurality of second heat dissipation fins 630 are arranged at intervals along the second direction, the second heat dissipation fins 630 are provided with a plurality of second limiting holes 631 arranged at intervals, and each second limiting hole 631 corresponds to a third pipe segment 613; wherein, the first outer surface and the second outer surface are arranged opposite to each other, and the first direction and the second direction are arranged to intersect.

[0104] In the above embodiment, the first direction refers to Figure 6 The second direction is the X direction. Figure 6 In the middle Y direction, the arrangement of the plurality of first heat dissipation fins 620 and the plurality of second heat dissipation fins 630 can enhance the heat dissipation capacity of the gear box 10 while also serving to fix the heat dissipation pipe 610 .

[0105] In order to further improve the heat dissipation capacity of the gear box 10, the structures of the first fins and the second fins may be improved.

[0106] See also Figure 8 As shown, in some embodiments of the present invention, the cross-sectional shape of the first heat dissipating fin 620 is a first trapezoid; and / or, the cross-sectional shape of the second heat dissipating fin 630 is a second trapezoid.

[0107] In the above embodiment, the cross-sectional shapes of the first heat dissipation fin 620 and the second heat dissipation fin 630 are both trapezoidal, which can better guide the air flow, reduce the generation of turbulence and the resistance of airflow, ensure that the heat dissipation process is more uniform and effective, and the heat dissipation efficiency is further improved. It can also help to evenly distribute and dissipate heat. In addition, the trapezoidal structure has good stability and can effectively reduce the stress concentration caused by thermal expansion and contraction caused by temperature changes, thereby reducing the fatigue risk of the fins and extending their service life.

[0108] Furthermore, in some embodiments of the present invention, the wide side of the first trapezoid is disposed in contact with the first outer surface of the box body 100 ; and / or, the wide side of the second trapezoid is disposed in contact with the second outer surface of the box body 100 .

[0109] In the above embodiment, the cross-sectional shape of the first heat dissipation fin 620 is a first trapezoid, and the wide side of the first trapezoid contacts the first outer surface of the box 100. It can be understood that the narrow side of the first trapezoid is away from the surface of the box 100, and the wide side contacts the outer surface of the box 100. Among them, the arrangement of the narrow side of the first trapezoid away from the surface of the box 100 can increase the contact area between the first heat dissipation fin 620 and the outside air to improve the heat dissipation efficiency. The wide side contacts the outer surface of the box 100, which can not only increase the contact area between the first heat dissipation fin 620 and the outer surface of the box 100, but also improve the structural strength and stability of the first heat dissipation fin 620, so that it is firmly connected to the heat dissipation pipe 610, and the risk of deformation or falling off of the first heat dissipation fin 620 under high speed or vibration conditions can be reduced, ensuring that the first heat dissipation fin 620 can still maintain an effective heat dissipation effect during long-term use. In addition, the wide side of the first trapezoid is in contact with the outer surface of the box 100, which can effectively shorten the path of heat conduction from the first heat dissipation fin 620 to the air, so that the heat can be dissipated more quickly. Similarly, the cross-sectional shape of the second heat dissipation fin 630 is a second trapezoid, and the wide side of the second trapezoid is in contact with the second outer surface of the box 100, which also has the same function as the first heat dissipation fin 620, and the embodiment of the present invention is not repeated here.

[0110] Based on the same inventive concept, an embodiment of the present invention further provides a transmission system, comprising the gearbox in any of the above embodiments.

[0111] In an embodiment of the present invention, the above-mentioned transmission system can be applied to mechanical equipment such as industrial reducers (such as reducers in conveyor belts, mining equipment, cranes and other mechanical equipment), wind power generation equipment, automobiles and rail transportation vehicles (such as automobiles and subways, trains and other transportation vehicles), aerospace equipment (such as aircraft engines, etc.) and ships and marine engineering equipment, especially for mechanical equipment running at high speed and high load, which can improve the working efficiency and service life of the above-mentioned mechanical equipment and reduce energy consumption.

[0112] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0113] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0114] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0115] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0116] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0117] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0118] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0119] The above is a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A gear box, characterized in that: include: A box body having a containing cavity; A gear assembly is rotatably disposed in the accommodating cavity, and the gear assembly includes a large gear and a small gear meshing with each other; as well as, An oil collecting assembly is arranged between the gear assembly and the top of the casing, and has at least one oil outlet. The oil collecting assembly is used to reduce and collect the lubricating oil splashed by the rotation of the gear assembly, and allows the collected lubricating oil to flow to the gear assembly through the oil outlet to lubricate the gear assembly.

2. The gearbox according to claim 1, characterized in that: The oil collecting assembly comprises: A first oil collecting member is disposed between the large gear and the top of the housing, the first oil collecting member being protruding in a direction away from the large gear; and A second oil collecting member is disposed between the pinion gear and the top of the housing, and the second oil collecting member is protruded in a direction away from the pinion gear; Wherein, the at least one oil outlet is located at least one of the first oil collecting member, the second oil collecting member, and between the first oil collecting member and the second oil collecting member.

3. The gearbox according to claim 2, characterized in that: A first oil collecting groove is provided on a surface of the first oil collecting member away from the large gear along the circumferential direction of the large gear; And / or, a second oil collecting groove is provided on a surface of the second oil collecting member away from the pinion gear along the circumferential direction of the pinion gear; And / or, a third oil collecting groove is formed at the connection portion between the first oil collecting member and the second oil collecting member.

4. The gearbox according to claim 3, characterized in that: The third oil collecting tank is connected to the first oil collecting tank and the second oil collecting tank respectively, and at least one oil outlet is provided in the third oil collecting tank; And / or, the first oil collecting member comprises two first arc-shaped portions connected to each other, and the connecting portion of the two first arc-shaped portions forms the first oil collecting groove; And / or, the second oil collecting member includes second arc-shaped portions connected to each other, and a connecting portion of two second arc-shaped portions forms the second oil collecting groove.

5. The gearbox according to claim 2, characterized in that: The gearbox also includes: A first baffle is provided on a surface of a connection portion between the first oil collecting member and the second oil collecting member facing the gear assembly; and A second baffle is provided on a surface of the connecting portion of the first oil collecting member and the second oil collecting member facing the gear assembly; Wherein, the meshing position of the large gear and the small gear is located between the first baffle plate and the second baffle plate.

6. The gearbox according to claim 1, characterized in that: The gear box also includes a heat dissipation component, which is arranged around the box body.

7. The gearbox according to claim 6, characterized in that: The heat dissipation component includes a plurality of heat dissipation pipes for coolant to flow through, the plurality of heat dissipation pipes are arranged at intervals along a first direction, the heat dissipation pipes include a first pipe segment, a second pipe segment and a third pipe segment, the second pipe segment is connected between the first pipe segment and the second pipe segment, wherein the second pipe segment is located in the box body, and the box body is located between the first pipe segment and the third pipe segment.

8. The gearbox according to claim 7, characterized in that: The heat dissipation component also includes: A plurality of first heat dissipation fins are arranged in contact with the first outer surface of the box body, the plurality of first heat dissipation fins are arranged at intervals along the second direction, the first heat dissipation fins are provided with a plurality of first limiting holes arranged at intervals, and each of the first limiting holes corresponds to one of the first pipe sections; A plurality of second heat dissipation fins are arranged in contact with the first outer surface of the box body, the plurality of second heat dissipation fins are arranged at intervals along the second direction, the second heat dissipation fins are provided with a plurality of second limiting holes arranged at intervals, and each of the second limiting holes corresponds to one of the third pipe sections; The first outer surface and the second outer surface are arranged opposite to each other, and the first direction and the second direction are arranged to intersect each other.

9. The gearbox according to claim 8, characterized in that The cross-sectional shape of the first heat dissipating fin is a first trapezoid, and the wide side of the first trapezoid is in contact with the first outer surface of the box body; And / or, the cross-sectional shape of the second heat dissipating fin is a second trapezoid, and the wide side of the second trapezoid is arranged in contact with the second outer surface of the box body.

10. A transmission system, characterized in that: A gearbox comprising any one of claims 1-9.

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