Double-cooling high-rotating-speed coaxial speed increasing box

Abstract

The invention relates to the technical field of gear speed changing boxes for increasing the output rotating speed of power equipment, in particular to a double-cooling high-rotating-speed coaxial speed increasing box which comprises a shell, an input component, a speed changing component and an output component, a gear cavity is formed in the shell, one end of the input component is in transmission connection with the external power equipment, and the other end of the input component is in transmission connection with the speed changing component. The other end of the transmission component is in transmission connection with one end of the output component, and the other end of the output component is in transmission connection with external driven equipment; and the cooling device is arranged on the shell and is used for cooling the shell, the input component, the speed change component and / or the output component. In conclusion, the first cooling part is used for cooling the gear part, and the second cooling part is used for conveniently cooling the rotating shaft, the bearing and the bearing seat, so that the operating temperature is reduced, the stability is improved, and high-rotating-speed output can be stably performed for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of a gear transmission for increasing the output speed of a power device, and in particular to a double-cooling high-speed coaxial speed increaser. Background Art

[0002] The speed increaser is an important mechanical transmission device, which is mainly used to change the speed of the transmission shaft to meet the working requirements of different mechanical equipment. The speed increase or decrease is achieved through the meshing of gears inside, and it has a wide range of application scenarios. The speed increaser is a device used to increase the speed of the transmission system of mechanical equipment. It converts low-speed rotational power into high-speed rotational power output by changing the transmission ratio of the gears.

[0003] The speed increaser usually contains multiple gear sets, which are configured according to a certain transmission ratio. When the input shaft drives the gears to rotate, the speed increases or decreases through the meshing between the gears. The main function of the speed increaser is to adjust the speed to meet the working requirements of different mechanical equipment.

[0004] Speed ​​increasers are widely used in various industrial machinery, automobiles, ships and other industries. For example, in some mechanical equipment that requires high-speed rotating parts, such as high-speed grinders, centrifuges, high-speed water pumps, etc., speed increasers are essential components.

[0005] For example, a Chinese patent document with the announcement number CN203836150U discloses a speed increasing gearbox, including a casing and a gearbox housing disposed in the casing cavity, wherein the casing cavity and the exterior of the gearbox housing are both provided with a ceramic coating. The ceramic coating passively improves the heat bearing capacity, but does not actively dissipate the heat, and its ability to operate for a long time is relatively weak.

[0006] During the use of the existing speed increaser, the transmission between the gears is accompanied by the generation of heat. The heat accumulates inside the speed increaser and is difficult to dissipate by itself. The heat accumulation will affect the transmission of the gears inside the speed increaser, accelerate the wear of the gears, and shorten their service life. Therefore, a cooling device is required to cool the gears.

[0007] In addition, when the speed increaser is working, the contact area between the main shaft and the bearing will generate a lot of heat due to high-speed friction rotation. This heat will reduce the service life of the main shaft and the bearing, especially affect the operation stability of the speed increaser, causing its speed to drop or fail to work for a long time. Most of the existing speed increasers use the solution of using the natural heat dissipation of the shell to export this heat to the outside air, but this solution has low thermal conductivity and is not effective. Summary of the invention

[0008] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0009] The present invention provides a double-cooling high-speed coaxial speed increaser, comprising a shell, and an input member, a speed change member and an output member rotatably connected to the shell, wherein a gear cavity is provided inside the shell, one end of the input member is transmission-connected to an external power device, the other end of the input member extending into the gear cavity is transmission-connected to one end of the speed change member, the other end of the speed change member is transmission-connected to one end of the output member extending into the gear cavity, and the other end of the output member is transmission-connected to an external driven device; and a cooling device is also included, wherein the cooling device is installed on the shell and performs cooling operations on the shell, the input member, the speed change member and / or the output member.

[0010] As a further solution of the present invention: the cooling device is provided with a first cooling part, the first cooling part is provided with a first pump, a first fluid pipe and a first radiator, the first fluid pipe is respectively connected to the first pump, the first radiator and the gear cavity, the first pump drives the first cooling medium to flow between the first fluid pipe, the first pump, the first radiator and the gear cavity, and the first radiator is used for heat dissipation and temperature reduction of the first cooling medium.

[0011] As a further solution of the present invention: the first radiator is installed at the air outlet end of the external power equipment, so as to dissipate heat and cool the first cooling medium inside the first radiator.

[0012] As a further solution of the present invention: the cooling device is also provided with a second cooling part, the second cooling part is provided with a total water inlet, a cooling channel and a total water outlet which are connected to each other, the cooling channel is opened in the shell wall of the shell, the total water inlet is connected to the output end of the external water pump, so as to connect the liquid delivered by the external water pump, and the total water outlet is used to discharge the liquid inside the cooling channel.

[0013] As a further solution of the present invention: the input component is provided with an input main shaft, an input gear and an input bearing, the input gear is fixedly connected to the input main shaft, and the input main shaft is rotatably connected to the housing through the input bearing; a first shaft seat is provided at a position corresponding to the input bearing on the housing, and the input bearing is installed on the first shaft seat; a first water channel is opened on the side wall of the first shaft seat, one end of the first water channel is connected to the main water inlet, and the other end thereof is provided with a first water outlet.

[0014] As a further solution of the present invention: the speed shift component is provided with a speed shift main shaft, a second gear, a third gear, a second bearing and a third bearing, the second gear and the third gear are respectively fixed to the speed shift main shaft, and the two ends of the speed shift main shaft are rotatably connected to the housing through the second bearing and the third bearing respectively; the positions corresponding to the second bearing and the third bearing on the housing are respectively provided with a second shaft seat and a third shaft seat, the second bearing is installed on the second shaft seat, and the third bearing is installed on the third shaft seat; a second water channel is opened on the side wall of the second shaft seat, and the second water channel is provided with a second water inlet and a second water outlet, a third water channel is opened on the side wall of the third shaft seat, and the third water channel is provided with a third water inlet and a third water outlet, the second water inlet is connected to the first water outlet; the third water inlet is connected to the second water outlet.

[0015] As a further solution of the present invention: a transverse water channel is provided on the shell wall of the shell part between the second water channel and the third water channel, and the third water inlet and the second water outlet are connected through the transverse water channel.

[0016] As a further solution of the present invention: the output component is provided with an output main shaft, an output gear and an output bearing, the output gear is fixedly connected to the output main shaft, and the output main shaft is rotatably connected to the housing through the output bearing; a fourth shaft seat is provided on the housing at a position corresponding to the output bearing, and the output bearing is installed on the fourth shaft seat; a fourth water channel is opened on the side wall of the fourth shaft seat, one end of the fourth water channel is connected to the main water outlet, and the other end thereof is provided with a fourth water inlet, and the fourth water inlet is connected to the third water outlet.

[0017] As a further solution of the present invention: the output main shaft is coaxially arranged with the input main shaft.

[0018] As a further solution of the present invention: the water inlet and the water outlet of the third water channel and / or the fourth water channel are respectively located on both sides of the water channel and in the same radial direction of the water channel.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the first cooling part, the first cooling medium inside the gear cavity is used to cool the gear, and the gear can also be lubricated at the same time, which can reduce the working resistance and the operating temperature, thereby reducing the wear of the gear and increasing its service life.

[0020] 2. The second cooling part is also provided to perform corresponding heat dissipation and cooling treatment on the rotating shaft, bearing and bearing seat, thereby reducing the temperature during operation and maintaining the stability of operation, so that the speed increaser can operate stably for a long time. In particular, the total water inlet is connected to the output end of the external water pump, and the liquid delivered by the water pump is introduced into the cooling channel of the second cooling part, so that the cooling channel can be cooled without adding additional power equipment.

[0021] 3. The output spindle and the input spindle are also set to be coaxial, which makes the connection of the speed increaser more convenient, reduces vibration, and enables the speed increaser to drive the water pump at a high speed.

[0022] Therefore, after the above-mentioned improvements, the present invention can provide a dual-cooling high-speed coaxial speed increaser, which uses the first cooling part to cool the gear part of the speed increaser, and also uses the second cooling part to conveniently cool the rotating shaft, bearings and bearing seats of the speed increaser, thereby reducing the operating temperature of the speed increaser, improving its stability, and enabling it to stably output high speed for a long time.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the overall structure of the speed increasing box of the present invention; Figure 2 is a schematic structural diagram of the internal transmission gear of the present invention; Figure 3 It is a schematic diagram of the overall structure of the present invention from another angle; Figure 4 is a schematic structural diagram of the internal transmission gear of the present invention from another angle; Figure 5 is a schematic structural diagram of the first cooling unit of the present invention; Figure 6 It is a structural schematic diagram of the total water inlet and the total water outlet of the present invention; Figure 7 is a cross-sectional schematic diagram of an input spindle and an output spindle of the present invention; Figure 8is a cross-sectional schematic diagram of a speed change component of the present invention; Fig. 9 is a cross-sectional schematic diagram of the first water channel and the second water channel of the present invention; Fig.10 is a schematic cross-sectional view of a transverse water channel of the present invention; Fig.11 It is a cross-sectional schematic diagram of the third water channel and the fourth water channel of the present invention.

[0026] The reference numerals and names in the figures are as follows: 10 housing; 11 first shaft seat; 12 second shaft seat; 13 third shaft seat; 14 fourth shaft seat; 15 gear cavity; 20 input member; 21 input main shaft; 22 input gear; 23 input bearing; 30 speed change member; 31 speed change main shaft; 32 second gear; 33 third gear; 34 second bearing; 35 third bearing; 40 output member; 41 output main shaft; 42 output gear; 43 output bearing; 50 cooling device; 51 first cooling device part; 52 first pump; 53 first fluid pipe; 54 first radiator; 60 second cooling part; 61 total water inlet; 62 total water outlet; 63 transverse water channel; 64 first water channel; 65 first water inlet; 66 first water outlet; 67 cooling flow channel; 71 second water channel; 72 second water inlet; 73 second water outlet; 74 third water channel; 75 third water inlet; 76 third water outlet; 77 fourth water channel; 78 fourth water inlet; 79 fourth water outlet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0028] See also Figures 1 to 11In an embodiment of the present invention, a dual-cooling high-speed coaxial speed increaser includes a housing 10, and an input member 20, a speed change member 30 and an output member 40 rotatably connected to the housing 10, wherein a gear cavity 15 is provided inside the housing 10, wherein one end of the input member 20 located outside the housing 10 is transmission-connected to an external power device, and the other end thereof extending into the gear cavity 15 is transmission-connected to one end of the speed change member 30, and the other end of the speed change member 30 is transmission-connected to one end of the output member 40 extending into the gear cavity 15, and the other end of the output member 40 located outside the housing 10 is transmission-connected to an external driven device, so that the output power of the external power device is output to the external driven device for use after the speed change operation of the speed change member 30; and further includes a cooling device 50, wherein the cooling device 50 is installed on the housing 10 and performs cooling operations on the housing 10, the input member 20, the speed change member 30 and / or the output member 40.

[0029] Specifically, a speed increaser is usually a device that increases the speed of an external power device (such as an internal combustion engine) through a gear set, and converts low-speed rotational power into high-speed rotational power output by increasing the gear ratio. When the input gear 22 of the input main shaft 21 drives the second gear 32 of the speed change member 30 to rotate, the third gear 33 also fixed to the speed change main shaft 31 also rotates synchronously. The third gear 33 can also drive the meshing output gear 42 to rotate, thereby driving the output main shaft 41 to drive the external device to be driven.

[0030] Secondly, by adjusting the gear ratio between the second gear 32 and the third gear 33 of the speed change member 30, the speed of the output main shaft 41 can be increased or decreased. The main function of the speed increaser is to adjust the speed to meet the working requirements of different mechanical equipment. Therefore, the speed increaser in the present invention can be used to increase the speed or reduce the speed, and can be configured according to actual needs.

[0031] In one embodiment, the external power device is a large internal combustion engine, and the external driven device is a large water pump. In order to improve the pumping performance of the water pump, it is preferred to set the speed increaser to increase the speed, that is, to increase the output speed of the internal combustion engine. For example, the optimal speed of the internal combustion engine is 1500 to 2000 rpm. After increasing the speed through the speed increaser, the speed of the water pump can reach 3000 to 5000 rpm, thereby improving the performance of the water pump.

[0032] Precisely because the water pump requires a relatively high rotation speed, high temperatures are easily generated during the meshing and rotation of the gears inside the speed increaser. In addition, the rotational friction between the main shaft and the bearings of the speed increaser is also likely to generate high temperatures. Therefore, a corresponding cooling device 50 needs to be provided to cool the corresponding components, thereby reducing the operating temperature of the speed increaser and improving its stability so that it can output high speeds stably for a long time.

[0033] In another embodiment, if Figures 1 to 5 As shown, preferably, the cooling device 50 is provided with a first cooling part 51, the first cooling part 51 is provided with a first pump 52, a first fluid pipe 53 and a first radiator 54, the first fluid pipe 53 is respectively connected to the first pump 52, the first radiator 54 and the gear cavity 15, the first pump 52 is fixed to the shell 10, and drives the first cooling medium to flow between the first fluid pipe 53, the first pump 52, the first radiator 54 and the gear cavity 15, and the first radiator 54 is used for dissipating heat and cooling the first cooling medium.

[0034] Specifically, the first cooling medium is preferably cooling lubricating oil in the prior art, so that the gears in the gear cavity 15 can be cooled and lubricated. The first pump 52 is preferably an oil pump in the prior art, so that the corresponding cooling lubricating oil can be driven better.

[0035] like Figure 1 and Figure 3 As shown, preferably, the first radiator 54 is installed at the air outlet of the external power equipment, so as to dissipate heat and cool the first cooling medium inside the first radiator 54 .

[0036] Specifically, since the external power equipment usually uses an internal combustion engine, and the internal combustion engine also needs to be cooled, and usually has a corresponding cooling fan, the first radiator 54 can be installed at the front end of the cooling fan of the internal combustion engine, so that the wind blown by the cooling fan can also take away the heat on the first radiator 54, thereby cooling and cooling the internal first cooling medium. In this way, the cooling fan of the external power equipment can be fully utilized to reduce additional investment.

[0037] In yet another embodiment, Figure 1 , Figure 3 , Figure 6 and Figure 7As shown, preferably, the cooling device 50 is further provided with a second cooling part 60, and the second cooling part 60 is provided with a total water inlet 61, a cooling channel 67 and a total water outlet 62 which are connected to each other, and the cooling channel 67 is opened inside the shell wall of the shell 10, and is arranged around the input component 20, the speed change component 30 and the output component 40, and the total water inlet 61 is connected to the output end of the external water pump through a pipeline, so as to connect the liquid delivered by the external water pump, and the total water outlet 62 is used to discharge the liquid entering the cooling channel 67.

[0038] Specifically, in this embodiment, it is preferred to set the external driven equipment as a large water pump. The speed increaser can be used to increase the output power of the external power equipment and then transmit it to the large external water pump for use, so that the rotation speed of the external water pump is increased, thereby improving the delivery performance of the water pump.

[0039] Secondly, since the liquid delivered by the water pump is usually at room temperature, or its temperature is lower than the operating temperature of the corresponding components, the water pump can use its ability to pump the liquid to pump the liquid into the cooling channel 67, and take away the heat on the side wall of the cooling channel 67 accordingly, thereby cooling the input component 20, the speed change component 30 and the output component 40 surrounded by the cooling channel 67. In particular, the bearing seat, bearing and main shaft can be cooled to prevent the corresponding components from running at high temperatures, improve the operating stability of the entire speed increaser, and extend the service life of the corresponding components.

[0040] Again, when the speed increasing box is used to connect other driven equipment instead of directly driving the water pump, a small water pump can also be set up, that is, a second cooling medium can also be set up inside the cooling channel 67, and the second cooling medium can be pumped by the small water pump to circulate. It can be understood that a second radiator (not shown in the figure) can also be set up to dissipate heat and cool the second cooling medium.

[0041] In another embodiment, if Figures 7 to 9 As shown, preferably, the input member 20 is provided with an input main shaft 21, an input gear 22 and an input bearing 23, the input bearing 23 is installed on the housing 10, the input gear 22 is fixedly connected to the input main shaft 21, and the input main shaft 21 is rotatably connected to the housing 10 through the input bearing 23; a first shaft seat 11 is provided on the housing 10 at a position corresponding to the input bearing 23, and the input bearing 23 is installed on the first shaft seat 11; a first water channel 64 is opened in the side wall of the first shaft seat 11, one end of the first water channel 64 is connected to the total water inlet 61, and a first water outlet 66 is provided at the other end thereof.

[0042] Specifically, the first water channel 64 may also be provided with a first water inlet 65, and communicate with the main water inlet 61 through a pipeline, a pipe or a hidden water channel. The first shaft seat 11 may be a separate component provided separately, or may be an integrally formed component directly opened on the housing 10, and its shape and size are mainly set to facilitate the installation of the corresponding bearing. Therefore, it can be understood that the first water channel 64 may also be directly opened on the side wall of the housing 10, preferably opened on the corresponding shaft seat.

[0043] Secondly, the first water channel 64 can be a water groove with a certain depth from the position of the bearing to the outer wall of the shaft seat along the radial direction of the first shaft seat 11, or a water groove with a certain depth from the position of the outer wall of the shaft seat to the direction of the bearing along the radial direction of the first shaft seat 11, or a water groove with a certain depth from the outside of the shell 10 to the inside of the inner body along the axial direction of the first shaft seat 11. The first water channel 64 is arranged around the input main shaft 21 and the input bearing 23 to form a cooling channel 67 for cooling the input main shaft 21 and the input bearing 23.

[0044] Again, in order to make the first water channel 64 form the corresponding cooling channel 67, a corresponding sealing device, such as a sealing rubber ring, a sealing gasket or a sealing cover, needs to be provided at the opening of the water channel to seal the water channel and prevent leakage of the liquid inside.

[0045] In another embodiment, if Figures 8 to 11 As shown, preferably, the speed change member 30 is provided with a speed change main shaft 31, a second gear 32, a third gear 33, a second bearing 34 and a third bearing 35, the second gear 32 and the third gear 33 are respectively fixed to the speed change main shaft 31, and the two ends of the speed change main shaft 31 are rotatably connected to the housing 10 through the second bearing 34 and the third bearing 35 respectively; the housing 10 is provided with a second shaft seat 12 and a third shaft seat 13 at positions corresponding to the second bearing 34 and the third bearing 35, and the second bearing 34 is installed on the second The shaft seat 12, the third bearing 35 is installed on the third shaft seat 13; a second water channel 71 is opened in the side wall of the second shaft seat 12, the second water channel 71 is provided with a second water inlet 72 and a second water outlet 73, a third water channel 74 is opened in the side wall of the third shaft seat 13, the third water channel 74 is provided with a third water inlet 75 and a third water outlet 76, the second water inlet 72 is connected to the first water outlet 66 through a pipeline; the third water inlet 75 is connected to the second water outlet 73 through a pipeline. A transverse water channel 63 is provided inside the shell wall of the shell 10 between the second water channel 71 and the third water channel 74, the third water inlet 75 is connected to the second water outlet 73 through the transverse water channel 63.

[0046] Specifically, the second water channel 71 and the third water channel 74 can be arranged in the same manner as the first water channel 64, and can be arranged on the corresponding side wall of the housing 10 or on the corresponding side wall of the shaft seat. The opening direction and opening manner can also be the same as the first water channel 64. As long as the corresponding cooling flow channel 67 for cooling the second bearing 34 and the third bearing 35 can be formed, the corresponding sealing device can also be used to seal them.

[0047] Secondly, since the second water channel 71 and the third water channel 74 are respectively located at the two ends of the speed change component 30, a transverse water channel 63 can be set on the side wall of the shell 10 between the two ends, so as to connect the third water inlet 75 and the second water outlet 73. It can be understood that the connection between the third water inlet 75 and the second water outlet 73 can be achieved through the transverse water channel 63 directly set on the shell 10, or through the connection method of an external pipeline. Moreover, it can be understood that other water inlets and water outlets can also be connected through the connection method of an external pipeline, and can also be connected by setting a hidden water channel on the side wall of the shell 10. Among them, the advantage of the external pipeline is low production cost and convenient connection. The advantage of the built-in hidden water channel is that it prolongs the service life and can also avoid collision damage to the external pipeline. It also reduces the pipe joints, which reduces the number of accessories that may have problems, and improves the overall service life of the speed increaser.

[0048] In another embodiment, if Figure 8 and Fig.11 As shown, preferably, the output member 40 is provided with an output main shaft 41, an output gear 42 and an output bearing 43, the output gear 42 is fixedly connected to the output main shaft 41, and the output main shaft 41 is rotatably connected to the housing 10 through the output bearing 43; a fourth shaft seat 14 is provided at a position corresponding to the output bearing 43 on the housing 10, and the output bearing 43 is installed on the fourth shaft seat 14; a fourth water channel 77 is opened in the side wall of the fourth shaft seat 14, one end of the fourth water channel 77 is connected to the total water outlet 62, and the other end thereof is provided with a fourth water inlet 78, and the fourth water inlet 78 is connected to the third water outlet 76 through a pipeline.

[0049] Specifically, the fourth water channel 77 may also be provided with a fourth water outlet 79, and connected to the main water outlet 62 through a pipeline, a pipe or a hidden water channel. The main water outlet 62 may also be connected to the input end of an external water pump through a water pipe, so that the liquid discharged from the cooling channel 67 can be pumped back to the external water pump. Of course, the liquid discharged from the main water outlet 62 may also be directly discharged into an external water source. For example, when the external water pump is pumping water from a river, the water after passing through the cooling channel 67 may be directly discharged into the corresponding river.

[0050] In another embodiment, if Figures 5 to 7 As shown, preferably, the output main shaft 41 is coaxially arranged with the input main shaft 21. Specifically, in order to facilitate the connection of the speed increaser, reduce vibration, and facilitate the high-speed driving of the water pump, preferably, the input main shaft 21 and the output main shaft 41 are coaxially arranged, that is, the two are coaxially arranged.

[0051] In another embodiment, if Fig. 9 and Fig.11 As shown, preferably, the water inlet and the water outlet of the first water channel 64 or the second water channel 71 are respectively located on the same side of the water channel, and the water inlet and the water outlet of the third water channel 74 or the fourth water channel 77 are respectively located on both sides of the water channel and in the same radial direction of the water channel.

[0052] Specifically, the first water channel 64, the second water channel 71, the third water channel 74 or the fourth water channel 77 are all provided with a water inlet and a water outlet. Since the total water inlet 61 is provided in the first water channel 64 and the second water channel 71 is connected to the first water channel 64, the water temperature inside the first water channel 64 and the second water channel 71 is relatively low, and the speed of the input spindle 21 is relatively low, and the heat generated is relatively small, so the water inlet and the water outlet can be provided on the same side of the water channel, thereby simplifying the connection length and connection complexity of the water inlet and the water outlet, and reducing the production cost.

[0053] Secondly, in the third water channel 74 and the fourth water channel 77, the water flow has absorbed a certain amount of heat, so the water temperature is relatively high. At the same time, the speed of the output spindle 41 is relatively high after conversion, and more heat is generated. Therefore, the water inlet and the water outlet can be set on both sides of the water channel and located in the same radial direction. This is equivalent to the water flow entering the water inlet can flow evenly from the water channels on both sides of the water inlet to the water outlet, thereby better taking away the heat of the inner wall of the entire water channel and enhancing the cooling effect on the shaft seat, bearing or spindle.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A double-cooling high-speed coaxial speed increaser, characterized in that: The invention comprises a housing (10), and an input member (20), a speed change member (30) and an output member (40) which are rotatably connected to the housing (10); a gear cavity (15) is provided inside the housing (10); one end of the input member (20) is transmission-connected to an external power device, and the other end thereof extending into the gear cavity (15) is transmission-connected to one end of the speed change member (30); the other end of the speed change member (30) is transmission-connected to one end of the output member (40) extending into the gear cavity (15); and the other end of the output member (40) is transmission-connected to an external driven device; and further comprises a cooling device (50); the cooling device (50) is mounted on the housing (10) and performs a cooling operation on the housing (10), the input member (20), the speed change member (30) and / or the output member (40).

2. The double-cooling high-speed coaxial speed increaser according to claim 1, characterized in that: The cooling device (50) is provided with a first cooling part (51), the first cooling part (51) is provided with a first pump (52), a first fluid pipe (53) and a first radiator (54), the first fluid pipe (53) is respectively connected to the first pump (52), the first radiator (54) and the gear cavity (15), the first pump (52) drives a first cooling medium to flow between the first fluid pipe (53), the first pump (52), the first radiator (54) and the gear cavity (15), and the first radiator (54) is used to perform heat dissipation and temperature reduction processing on the first cooling medium.

3. The double-cooling high-speed coaxial speed increaser according to claim 2, characterized in that: The first radiator (54) is installed at the air outlet end of the external power equipment, thereby performing heat dissipation and temperature reduction processing on the first cooling medium inside the first radiator (54).

4. The double-cooling high-speed coaxial speed increaser according to claim 1, characterized in that: The cooling device (50) is further provided with a second cooling part (60), the second cooling part (60) being provided with a total water inlet (61), a cooling channel (67) and a total water outlet (62) which are connected to each other, the cooling channel (67) being opened in the shell wall of the shell (10), the total water inlet (61) being connected to the output end of an external water pump so as to receive the liquid delivered by the external water pump, and the total water outlet (62) being used to discharge the liquid inside the cooling channel (67).

5. The double-cooling high-speed coaxial speed increaser according to claim 1, characterized in that: The input member (20) is provided with an input main shaft (21), an input gear (22) and an input bearing (23); the input gear (22) is fixedly connected to the input main shaft (21); the input main shaft (21) is rotatably connected to the housing (10) via the input bearing (23); a first shaft seat (11) is provided at a position corresponding to the input bearing (23) on the housing (10); the input bearing (23) is mounted on the first shaft seat (11); a first water channel (64) is provided on a side wall of the first shaft seat (11); one end of the first water channel (64) is connected to the main water inlet (61), and the other end thereof is provided with a first water outlet (66).

6. The double-cooling high-speed coaxial speed increaser according to claim 5, characterized in that: The speed change component (30) is provided with a speed change main shaft (31), a second gear (32), a third gear (33), a second bearing (34) and a third bearing (35); the second gear (32) and the third gear (33) are respectively fixed to the speed change main shaft (31); two ends of the speed change main shaft (31) are rotatably connected to the housing (10) via the second bearing (34) and the third bearing (35); a second shaft seat (12) and a third shaft seat (13) are respectively provided on the housing (10) at positions corresponding to the second bearing (34) and the third bearing (35); the second bearing (34) is installed On the second shaft seat (12), the third bearing (35) is installed on the third shaft seat (13); a second water channel (71) is opened on the side wall of the second shaft seat (12), and the second water channel (71) is provided with a second water inlet (72) and a second water outlet (73); a third water channel (74) is opened on the side wall of the third shaft seat (13), and the third water channel (74) is provided with a third water inlet (75) and a third water outlet (76); the second water inlet (72) is connected to the first water outlet (66); and the third water inlet (75) is connected to the second water outlet (73).

7. The double-cooling high-speed coaxial speed increaser according to claim 6, characterized in that: A transverse water channel (63) is provided on the shell wall of the shell body (10) between the second water channel (71) and the third water channel (74), and the third water inlet (75) and the second water outlet (73) are connected via the transverse water channel (63).

8. A double-cooling high-speed coaxial speed increaser according to claim 6 or 7, characterized in that: The output member (40) is provided with an output main shaft (41), an output gear (42) and an output bearing (43); the output gear (42) is fixedly connected to the output main shaft (41); the output main shaft (41) is rotatably connected to the housing (10) via the output bearing (43); a fourth shaft seat (14) is provided at a position corresponding to the output bearing (43) on the housing (10); the output bearing (43) is mounted on the fourth shaft seat (14); a fourth water channel (77) is provided on a side wall of the fourth shaft seat (14); one end of the fourth water channel (77) is connected to the main water outlet (62); the other end of the fourth water channel (77) is provided with a fourth water inlet (78); the fourth water inlet (78) is in communication with the third water outlet (76).

9. The double-cooling high-speed shaft speed increaser according to claim 1, characterized in that: The output main shaft (41) and the input main shaft (21) are arranged coaxially.

10. The double-cooling high-speed shaft speed increaser according to claim 8, characterized in that: The water inlet and the water outlet of the third water channel (74) and / or the fourth water channel (77) are located on both sides of the water channel respectively and in the same radial direction of the water channel.

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