CN110939691A - Compound planetary transmission device - Google Patents
Compound planetary transmission device Download PDFInfo
- Publication number
- CN110939691A CN110939691A CN202010110381.4A CN202010110381A CN110939691A CN 110939691 A CN110939691 A CN 110939691A CN 202010110381 A CN202010110381 A CN 202010110381A CN 110939691 A CN110939691 A CN 110939691A
- Authority
- CN
- China
- Prior art keywords
- gear
- oil pump
- gear set
- reduction gear
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0441—Arrangements of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0479—Gears or bearings on planet carriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0486—Gearings with gears having orbital motion with fixed gear ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H2037/048—Combinations of parallel shaft and orbital motion gearing, wherein the orbital motion gear has more than one connection with the parallel shaft gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
Abstract
The invention provides a composite planetary transmission device, which relates to the technical field of speed change equipment, and comprises: a reduction gear set, a planetary reduction gear set and a mechanical oil pump; the reduction gear set comprises a first gear and a second gear, and the transmission ratio between the first gear and the second gear is greater than 1; the reduction gear set is connected with the planetary reduction gear set, and the mechanical oil pump is arranged in the second gear. The problem of current transmission occupy great installation space is solved. The speed is changed by adopting a combined mode of the reduction gear set and the planetary reduction gear set, so that a larger transmission ratio can be relatively obtained, the installation space can be correspondingly reduced, and the mechanical oil pump is installed in the second gear with a larger shaft diameter in the reduction gear set, so that the problem that the mechanical oil pump is installed in the external space and occupies a larger installation space is avoided, and the whole transmission device is compact in structure.
Description
Technical Field
The invention relates to the technical field of torque transmission, in particular to a composite planetary transmission device.
Background
The transmission is used to vary the speed and torque of the power plant. The existing transmission device changes speed through a reduction gear, when a larger transmission ratio is needed, the reduction gear hardly guarantees the speed change requirement, even if the preset speed change requirement can be met, a plurality of groups of reduction gear sets need to be adopted for changing speed, and the problem of large diameter difference among the gears of the reduction gear sets also exists, so that the radial space of the transmission device structure is large; at present, the speed is changed by adopting a double-row or more than three-row planetary reduction gear set, the radial space of a transmission mechanism is correspondingly reduced, but the internal space of the planetary reduction gear set is smaller, so that an external installation space is required to be occupied when a mechanical oil pump for lubricating the transmission device is installed, and the installation space of the whole transmission device is still increased.
Disclosure of Invention
The invention aims to provide a compound planetary transmission device to solve the problem that the existing compound planetary transmission device occupies a large installation space.
The invention provides a compound planetary transmission device, comprising: a reduction gear set, a planetary reduction gear set and a mechanical oil pump;
the reduction gear set comprises a first gear and a second gear, and the transmission ratio between the first gear and the second gear is greater than 1;
the reduction gear set is in transmission connection with the planetary reduction gear set, and the mechanical oil pump is arranged in a shaft hole of the second gear.
Further, the first gear is connected with a torque input end, the first gear is meshed with the second gear, and the second gear is connected with the planetary reduction gear set.
Further, the planetary reduction gear set includes a ring gear and a sun gear;
the sun gear is connected with the second gear, and the gear ring is fixedly connected with a shell of the compound planetary transmission device.
Further, the planetary reduction gear set includes a ring gear and a sun gear;
the gear ring is connected with the second gear, and the sun gear is fixedly connected with the transmission device shell.
Further, an inner rotor of the mechanical oil pump is connected with the second gear.
Further, still include electric oil pump, electric oil pump sets up in the outside of transmission casing for carry out the auxiliary lubrication cooling to compound planetary transmission.
Further, the electric oil pump is fixed on the transmission device shell through a fixing bolt.
Furthermore, the device also comprises a filter and a partition oil way;
one end of the filter is communicated with one end of the partition plate oil way, and the other end of the partition plate oil way is communicated with an oil inlet of the mechanical oil pump, so that lubricating oil is conveyed to the mechanical oil pump through the filter and the partition plate oil way.
Furthermore, the planetary reduction gear set is connected with a torque input end, the planetary reduction gear set is in transmission connection with the first gear, and the first gear is meshed with the second gear.
Further, the first gear is in spline connection with the torque input end.
According to the compound planetary transmission device provided by the invention, the reduction gear set comprises the first gear and the second gear, the reduction gear set is connected with the planetary reduction gear set, and the mechanical oil pump is arranged in the second gear. The speed is changed by adopting a combination mode of the reduction gear set and the planetary reduction gear set, so that a relatively large transmission ratio can be obtained, the installation space can be correspondingly reduced, the mechanical oil pump is installed in the second gear with a large shaft diameter in the reduction gear set, the problem that the mechanical oil pump is installed in the external space and occupies a large installation space is avoided, and the whole composite planetary transmission device is compact in structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic transmission diagram of a compound planetary transmission provided in embodiment 1 of the present invention;
fig. 2 is a partial sectional view of a compound planetary transmission provided in embodiment 1 of the invention (a planetary reduction gear set is not fully shown);
fig. 3 is a schematic transmission diagram of a compound planetary transmission provided in embodiment 2 of the present invention;
fig. 4 is a schematic transmission diagram of a compound planetary transmission provided in embodiment 3 of the invention;
FIG. 5 is a sectional view of a separator provided in example 4 of the present invention;
fig. 6 is a sectional view of an electric oil pump provided in embodiment 4 of the present invention.
Icon: 11-a reduction gear set; 12-a planetary reduction gear set; 13-a mechanical oil pump; 14-a transmission housing; 15-an electric oil pump; 16-a filter; 17-oil path; 111-a first gear; 112-a second gear; 1121-a core; 113-a bearing; 121-a gear ring; 122-sun gear; 123-planet carrier; 131-an oil inlet of a mechanical oil pump; 132-mechanical oil pump housing; 133-mechanical oil pump limit ring; 134-mechanical oil pump outer rotor; 135-mechanical oil pump inner rotor; 136-an interface; 151-electric oil pump oil inlet; 152-an electric oil pump oil outlet; 2-torque input.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 2, the present invention provides a compound planetary transmission device including: a reduction gear set 11, a planetary reduction gear set 12, and a mechanical oil pump 13; the reduction gear set 11 comprises a first gear 111 and a second gear 112, and the transmission ratio between the first gear 111 and the second gear 112 is greater than 1; the reduction gear set 11 is connected to the planetary reduction gear set 12, and the mechanical oil pump 13 is disposed in the second gear 112.
Specifically, the reduction gear set 11 includes a first gear 111 and a second gear 112, and a transmission ratio between the first gear 111 and the second gear 112 is greater than 1; the reduction gear set 11 is connected to the planetary reduction gear set 12, and the mechanical oil pump 13 is disposed in the second gear 112. By adopting the combination mode of the reduction gear set 11 and the planetary reduction gear set 12 to change speed, a relatively large transmission ratio can be obtained, and the installation space can be correspondingly reduced, and the mechanical oil pump 13 is arranged in the second gear 112 with a large shaft diameter in the reduction gear set 11, so that the problem that the mechanical oil pump 13 is arranged in the external space and occupies a large space is avoided, and the whole composite planetary transmission device has a compact structure.
Wherein, change speed through the compound mode that adopts reduction gear set 11 and planetary reduction gear set 12, it is little to have solved the drive ratio that all adopts reduction gear set 11 to carry out the speed reduction, and there is the footpath difference between the gear big, lead to compound planetary transmission's the big problem of radial space, when can avoiding again adopting planetary reduction gear set 12 to carry out the variable speed, lead to carrying out lubricated refrigerated mechanical oil pump 13 to compound planetary transmission and can't set up in planetary reduction gear set 12's inside, need occupy planetary reduction gear set 12's exterior space, the problem of whole space increase.
The reduction gear set 11 includes a second gear 112 with a larger shaft diameter, and the mechanical oil pump 13 is installed in the second gear 112, so that it is ensured that the mechanical oil pump 13 has a larger installation space and the installation stability is ensured.
The mechanical oil pump 13 is driven by the second gear 112 to pump oil from the oil pan, so as to lubricate and cool the overall composite planetary transmission device.
Specifically, the compound planetary transmission further includes a transmission housing 14, and the reduction gear set 11 is connected to the planetary reduction gear set 12 and fixed in the transmission housing 14.
Preferably, the first gear 111 is connected to the torque input 2, the first gear 111 is connected to the second gear 112, and the second gear 112 is connected to the planetary reduction gear set 12.
Specifically, the power transmission process of the compound planetary transmission device is realized by connecting the first gear 111 with the torque input end 2, connecting the first gear 111 with the second gear 112, and connecting the second gear 112 with the planetary reduction gear set 12: the power of the torque input end 2 is transmitted to the first gear 111, and the second gear 112 performs secondary speed change of the power transmission planetary reduction gear set 12 through speed ratio change of the first gear 111 and the second gear 112.
Specifically, taking the compound planetary transmission as a speed reducer for illustration, the rotation speed of the torque input end 2 is reduced by the transmission ratio of the reduction gear set 11, and then reduced by the transmission ratio of the planetary reduction gear set 12.
As shown in fig. 1 and 2, in the present embodiment, the planetary reduction gear set 12 includes a ring gear 121 and a sun gear 122; the ring gear 121 is connected to the second gear 112, and the sun gear 122 is fixedly connected to the transmission housing 14.
Specifically, the ring gear 121 of the planetary reduction gear set 12 is connected to the second gear 112, and the sun gear 122 is fixedly connected to the transmission housing 14. And then the power transmission process of the compound planetary transmission device is as follows: the torque input 2 transmits power to the first gear 111, and the second gear 112 transmits power to the ring gear 121 through the gear ratio change of the first gear 111 and the second gear 112, and performs a secondary gear change through the planetary reduction gear set 12.
The planetary reduction gear set 12 further includes a carrier 123, and the carrier 123 is used for outputting power of the compound planetary transmission device. It is worth mentioning that the power transmission process of the compound planetary transmission device is as follows: the power of the torque input end 2 is transmitted to the first gear 111, and is subjected to gear ratio change of the first gear 111 and the second gear 112, the second gear 112 transmits the power to the ring gear 121, and is subjected to secondary gear change through the planetary reduction gear set 12, and finally is output from the planet carrier 123.
Preferably, the first gear 111 is connected with the torque input end 2 through a spline.
Specifically, the first gear 111 is spline-connected to the torque input end 2, so that the power of the torque input end 2 can be transmitted to the first gear 111, and the power transmission is stable.
The torque input end 2 includes a spline shaft, and the inner surface of the first gear 111 is an internal spline, so that the first gear 111 is spline-connected to the torque input end 2.
The first gear 111 is in spline connection with the torque input end 2, so that the first gear 111 and the torque input end 2 are stressed uniformly, the first gear can bear larger load, and the guide performance is good.
The mechanical oil pump 13 may be a rotary pump; the rotor oil pump is sequentially provided with a mechanical oil pump inner rotor 135, a mechanical oil pump outer rotor 134, a mechanical oil pump limiting ring 133 and a mechanical oil pump shell 132 from inside to outside, the mechanical oil pump inner rotor 135 is connected with the planetary reduction gear set through a spline, the mechanical oil pump shell 132 is integrally connected with the transmission device shell 14, and the filter 16 is connected with the oil circuit 17 through an interface 136.
The inner rotor of the mechanical oil pump 13 is connected to the second gear 112, and both have the same rotational state.
The mechanical oil pump 13 and the second gear 112 may be connected by a spline or a flat key.
In one embodiment of the present embodiment, the mechanical oil pump 13 is spline-connected to the second gear 112, so that the mechanical oil pump is fixedly connected. The inner surface of the inner rotor of the mechanical oil pump 13 is provided with an inner spline, the middle part of the second gear 112 is provided with a core 1121 protruding towards the mechanical oil pump 13, the outer surface of the core 1121 is provided with an outer spline, the inner spline of the inner surface of the inner rotor of the mechanical oil pump 13 is in fit connection with the outer surface of the core 1121 of the second gear through the outer spline, and then the core 1121 of the second gear drives the mechanical oil pump 13 to rotate, so that the oil pan is used for lubricating and cooling the integral composite planetary transmission device. The mechanical oil pump 13 is splined to the core 1121 of the second gear 112, so that the mechanical oil pump 13 and the sun gear 122 are stressed evenly, a large load can be borne, and the guiding performance is good.
In another embodiment, the outer wall of the core 1121 of the second gear 112 has a flat cross-sectional shape, and correspondingly, the hole at the middle position of the inner rotor of the mechanical oil pump 13 has a flat shape.
Preferably, the reduction gear set 11 further includes a bearing 113, an outer ring of the bearing 113 is connected with the second gear 112, and an inner ring is connected with the oil pump housing.
Specifically, the bearing 113 is used to receive axial and radial forces of the second gear 112.
Preferably, the first bearing is an angular contact bearing.
Specifically, the angular contact bearing mainly bears a large circumferential load, and the larger the contact angle is, the larger the load bearing capacity is. The angular contact bearing can bear radial load and circumferential load at the same time, can work at a high rotating speed, the larger the contact angle is, the larger the axial bearing capacity is, and the high-precision and high-speed bearing usually has a contact angle of 15 degrees.
Example 2
As shown in fig. 3, the difference from embodiment 1 is that the planetary reduction gear set 12 includes a ring gear 121, a planetary gear, and a sun gear 122; preferably, the sun gear 122 is connected to the second gear 112, and the ring gear 121 is fixedly connected to a housing of the compound planetary gear set.
Specifically, the sun gear 122 of the planetary reduction gear set 12 is connected to the second gear 112, and the ring gear 121 is fixedly connected to the housing of the compound planetary transmission. And then the power transmission process of the compound planetary transmission device is as follows: the power of the torque input 2 is transmitted to the first gear 111, and is shifted by the gear ratio of the first gear 111 and the second gear 112, and the second gear 112 transmits the power to the sun gear 122, and is shifted twice by the planetary reduction gear set 12.
The planetary reduction gear set 12 further includes a carrier 123, and the carrier 123 is used for outputting power of the compound planetary transmission device. It is worth mentioning that the power transmission process of the compound planetary transmission device is as follows: the power of the torque input end 2 is transmitted to the first gear 111, and is shifted by the first gear 111 and the second gear 112, and the second gear 112 transmits the power to the sun gear 122, and is shifted twice by the planetary reduction gear set 12, and is finally output from the carrier 123.
In this case, the power of the reduction gear set 11 is transmitted to the sun gear 122 or the ring gear 121, and the transmission ratio of the corresponding planetary reduction gear set 12 is changed accordingly.
Example 3
As shown in fig. 4, the compound planetary transmission in this embodiment is different from embodiment 2 in that the planetary reduction gear set 12 is connected to the torque input 2, the planetary reduction gear set 12 is connected to the first gear 111, and the first gear 111 is meshed with the second gear 112.
Specifically, the planetary reduction gear set 12 is connected to the torque input end 2, the planetary reduction gear set 12 is connected to the first gear 111, and the first gear 111 is meshed with the second gear 112, so that the power of the torque input end 2 is changed in speed by the transmission ratio of the planetary reduction gear set 12 and in speed by the transmission ratio of the reduction gear set 11.
Wherein, the power transmission process of the compound planetary transmission device is as follows: the power of the torque input 2 is transmitted to the sun gear 122 of the planetary reduction gear set 12, and the planetary reduction gear set 12 transmits the power to the first gear 111 through the speed change of the transmission ratio of the planetary reduction gear set 12, and finally is transmitted out through the second gear 112 to perform the secondary speed change through the reduction gear set 11.
Example 4
As shown in fig. 5 and 6, in the present embodiment, the compound planetary transmission device differs from embodiment 1 in that the compound planetary transmission device further includes an electric oil pump 15, and the electric oil pump 15 is disposed outside the compound planetary transmission device and is used for auxiliary cooling and lubrication of the compound planetary transmission device.
When the oil pressure of the mechanical oil pump 13 is insufficient, the lubrication of the composite planetary transmission device and the cooling of the torsion input end need to be carried out through the external electric oil pump 15; when the torque input end 2 has a high rotation speed, the corresponding sun gear 122 also has a high rotation speed, so that the inner rotor 135 of the mechanical oil pump is driven to operate at a high rotation speed, the oil inlet and outlet amount is large, and the lubricating and cooling of the composite planetary transmission device and the cooling of the motor can be sufficiently realized. In the prior art, only the electric oil pump 15 is commonly used, so that the electric oil pump 15 is required to work all the time, and the energy consumption is high; the electric oil pump 15 and the mechanical oil pump 13 are jointly used, the power of the mechanical oil pump 13 is derived from the external torque input end 2, and the electric oil pump 15 only intervenes in work when the oil pressure of the mechanical oil pump 13 is insufficient, so that consumption reduction is realized.
The compound planetary transmission device also comprises a filter 16 and an oil way 17; one end of the filter 16 is communicated with one end of the oil path 17, and the other end of the oil path 17 is communicated with the mechanical oil pump oil inlet 131, so that the lubricating oil is conveyed to the mechanical oil pump through the filter 16 and the oil path 17.
Specifically, an oil outlet of the filter 16 is communicated with an oil inlet end of the oil path 17, and an oil outlet of the oil path 17 is communicated with an oil inlet 131 of the mechanical oil pump, so that the lubricating oil is conveyed to the mechanical oil pump through the filter 16 and the oil path 17.
The electric oil pump 15 includes an electric oil pump oil inlet 151 and an electric oil pump oil outlet 152, and performs auxiliary lubrication and cooling on the compound planetary transmission device.
The electric oil pump 15 may be fixed to an outer wall of the transmission housing by fixing bolts.
The electric oil pump oil inlet 151 is connected with the filter 16, the electric oil pump oil outlet 152 is communicated with the housing oil path, and the electric oil pump 15 guides oil in the filter 16 into the housing oil path for providing pressure oil and lubricating oil.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A compound planetary transmission, comprising: a reduction gear set, a planetary reduction gear set and a mechanical oil pump;
the reduction gear set comprises a first gear and a second gear, and the transmission ratio between the first gear and the second gear is greater than 1;
the reduction gear set is in transmission connection with the planetary reduction gear set, and the mechanical oil pump is arranged in a shaft hole of the second gear.
2. A compound planetary transmission as in claim 1, wherein the first gear is connected to a torque input, the first gear is in mesh with a second gear, and the second gear is connected to the planetary reduction gear set.
3. The compound planetary transmission as in claim 2, wherein the planetary reduction gear set comprises a ring gear and a sun gear;
the sun gear is connected with the second gear, and the gear ring is fixedly connected with a shell of the compound planetary transmission device.
4. The compound planetary transmission as in claim 2, wherein the planetary reduction gear set comprises a ring gear and a sun gear;
the gear ring is connected with the second gear, and the sun gear is fixedly connected with the transmission device shell.
5. A compound planetary transmission according to claim 4, characterized in that the inner rotor of the mechanical oil pump is connected with the second gear.
6. A compound planetary transmission according to claim 1, further comprising an electric oil pump disposed outside the transmission housing for assisting in lubricating and cooling the compound planetary transmission.
7. A compound planetary transmission as claimed in claim 6, wherein the electric oil pump is fixed to the transmission case by fixing bolts.
8. A compound planetary transmission according to claim 1, further comprising a filter and a separator oil passage;
one end of the filter is communicated with one end of the partition plate oil way, and the other end of the partition plate oil way is communicated with an oil inlet of the mechanical oil pump, so that lubricating oil is conveyed to the mechanical oil pump through the filter and the partition plate oil way.
9. A compound planetary transmission as in claim 1, wherein the planetary reduction gear set is connected to a torque input, the planetary reduction gear set is in driving connection with the first gear, and the first gear is in meshing engagement with a second gear.
10. A compound planetary transmission as in claim 2, wherein the first gear is splined to the torque input.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110381.4A CN110939691A (en) | 2020-02-24 | 2020-02-24 | Compound planetary transmission device |
| CN202022839372.7U CN214578680U (en) | 2020-02-24 | 2020-11-30 | Compound planetary transmission device and speed reducer |
| CN202011374526.8A CN112503150A (en) | 2020-02-24 | 2020-11-30 | Compound planetary transmission device and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110381.4A CN110939691A (en) | 2020-02-24 | 2020-02-24 | Compound planetary transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110939691A true CN110939691A (en) | 2020-03-31 |
Family
ID=69913875
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010110381.4A Pending CN110939691A (en) | 2020-02-24 | 2020-02-24 | Compound planetary transmission device |
| CN202022839372.7U Active CN214578680U (en) | 2020-02-24 | 2020-11-30 | Compound planetary transmission device and speed reducer |
| CN202011374526.8A Pending CN112503150A (en) | 2020-02-24 | 2020-11-30 | Compound planetary transmission device and speed reducer |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022839372.7U Active CN214578680U (en) | 2020-02-24 | 2020-11-30 | Compound planetary transmission device and speed reducer |
| CN202011374526.8A Pending CN112503150A (en) | 2020-02-24 | 2020-11-30 | Compound planetary transmission device and speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN110939691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503150A (en) * | 2020-02-24 | 2021-03-16 | 盛瑞传动股份有限公司 | Compound planetary transmission device and speed reducer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526316B (en) * | 2022-02-24 | 2023-03-24 | 浙江顺天传动科技股份有限公司 | Triangular gear transmission type combined sealing speed reducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2604541Y (en) * | 2003-02-14 | 2004-02-25 | 自贡市川力实业有限公司 | Cycloid oil pump for motor engine |
| CN102826003A (en) * | 2011-06-15 | 2012-12-19 | 现代摩比斯株式会社 | Wheel drive unit |
| CN105972191A (en) * | 2015-03-13 | 2016-09-28 | 丰田自动车株式会社 | Lubricating structure for hybrid vehicle |
| CN107339595A (en) * | 2017-07-25 | 2017-11-10 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil pump assembly |
| CN206817137U (en) * | 2017-06-22 | 2017-12-29 | 湖南机油泵股份有限公司 | A kind of compact-sized rotor-type oil pump |
| CN208169068U (en) * | 2018-04-28 | 2018-11-30 | 中国石油天然气集团有限公司 | A kind of compound gearing for pressure break plunger pump |
| DE102017213413A1 (en) * | 2017-08-02 | 2019-02-07 | Zf Friedrichshafen Ag | Oil pump drive |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4225342B2 (en) * | 2006-10-04 | 2009-02-18 | トヨタ自動車株式会社 | In-wheel motor structure |
| CN102052120B (en) * | 2010-11-27 | 2013-01-02 | 奇瑞汽车股份有限公司 | Engine oil pump |
| JP6423403B2 (en) * | 2016-10-14 | 2018-11-14 | トヨタ自動車株式会社 | Oil passage structure of power transmission device |
| CN110939691A (en) * | 2020-02-24 | 2020-03-31 | 盛瑞传动股份有限公司 | Compound planetary transmission device |
-
2020
- 2020-02-24 CN CN202010110381.4A patent/CN110939691A/en active Pending
- 2020-11-30 CN CN202022839372.7U patent/CN214578680U/en active Active
- 2020-11-30 CN CN202011374526.8A patent/CN112503150A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2604541Y (en) * | 2003-02-14 | 2004-02-25 | 自贡市川力实业有限公司 | Cycloid oil pump for motor engine |
| CN102826003A (en) * | 2011-06-15 | 2012-12-19 | 现代摩比斯株式会社 | Wheel drive unit |
| CN105972191A (en) * | 2015-03-13 | 2016-09-28 | 丰田自动车株式会社 | Lubricating structure for hybrid vehicle |
| CN206817137U (en) * | 2017-06-22 | 2017-12-29 | 湖南机油泵股份有限公司 | A kind of compact-sized rotor-type oil pump |
| CN107339595A (en) * | 2017-07-25 | 2017-11-10 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil pump assembly |
| DE102017213413A1 (en) * | 2017-08-02 | 2019-02-07 | Zf Friedrichshafen Ag | Oil pump drive |
| CN208169068U (en) * | 2018-04-28 | 2018-11-30 | 中国石油天然气集团有限公司 | A kind of compound gearing for pressure break plunger pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503150A (en) * | 2020-02-24 | 2021-03-16 | 盛瑞传动股份有限公司 | Compound planetary transmission device and speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN214578680U (en) | 2021-11-02 |
| CN112503150A (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2551143C2 (en) | System of counter-rotating propellers for aircraft turbine machine | |
| CN109654208B (en) | Continuously variable transmission | |
| CN110939691A (en) | Compound planetary transmission device | |
| CN109654182B (en) | Continuously variable transmission | |
| EP2385611B1 (en) | An electromechanical device | |
| CN109723773B (en) | Continuously variable transmission | |
| CN109723799B (en) | Composite harmonic speed reducer | |
| CN111051695B (en) | Wind turbine gearbox planet carrier with improved lubricant path | |
| CN109654207B (en) | Continuously variable transmission | |
| CN212177791U (en) | Compact structure buncher | |
| CN213094009U (en) | Driving device | |
| CN212455404U (en) | Through shaft continuously variable transmission | |
| CN209892700U (en) | Stepless speed variator | |
| WO2020238280A1 (en) | Continuously variable transmission | |
| CN216143118U (en) | Highly modularized speed change device | |
| CN111486212B (en) | Compact structure continuously variable transmission | |
| CN217401608U (en) | Dual-motor direct drive system and vehicle | |
| CN214367541U (en) | Transfer case, hydraulic pump electric drive system and electric loader | |
| CN214083718U (en) | High-rotation-speed electric drive axle structure | |
| CN217883039U (en) | Multi-motor coupling structure | |
| CN216692095U (en) | Double-input multi-output parallel operation transfer case | |
| CN220227691U (en) | Gear box and transmission chain | |
| CN211117471U (en) | Double-split gearbox with herringbone teeth | |
| CN214092989U (en) | Planetary gear lubricating system, gearbox assembly and automobile | |
| CN114704596A (en) | Double-motor direct drive system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200331 |