CN217944892U - Hybrid power takeoff device, hybrid power system and working machine - Google Patents
Hybrid power takeoff device, hybrid power system and working machine Download PDFInfo
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- CN217944892U CN217944892U CN202221946025.7U CN202221946025U CN217944892U CN 217944892 U CN217944892 U CN 217944892U CN 202221946025 U CN202221946025 U CN 202221946025U CN 217944892 U CN217944892 U CN 217944892U
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- shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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- Y02T10/62—Hybrid vehicles
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Abstract
The utility model relates to the field of operating machinery, and provides a hybrid power take-off device, a hybrid power system and operating machinery, wherein the hybrid power take-off device comprises a power take-off shaft, and the input end of the power take-off shaft is connected with a power take-off port of an internal combustion engine assembly; the planet wheel assembly is used for being in transmission connection with the hydraulic transmission shaft; and the planet wheel assembly can be selectively connected with the output end of the power take-off shaft or the rotating shaft of the electric drive assembly. The utility model provides a hybrid power take-off, hybrid power system and operation machinery utilize the speed reduction of planet wheel subassembly to increase the turn round characteristic, effectively reduce the moment of torsion of electric drive assembly, reduce the volume of electric drive assembly; when dragging different loads, can realize different load outputs through changing planet wheel subassembly reduction ratio, be favorable to unifying the model of electric drive subassembly, be favorable to arranging of hybrid power take-off and the effective control of cost.
Description
Technical Field
The utility model relates to an operation machinery technical field especially relates to a hybrid power take-off, hybrid power system and operation machinery.
Background
At present, a diesel engine is adopted as a power source of a traditional wheel crane, a power take-off device is arranged at an outlet of a gearbox, when the crane works on the ground, the engine drives the power take-off device to perform oil pump work, the application of the crane is very mature, but the crane also has the disadvantage of low energy utilization rate, so that the environment pollution is serious, the economy is low, and the noise is high.
In the prior art, a motor is additionally arranged between traditional power take-off shafts, and the motor is designed to be in a through shaft form, so that when an engine works, a rotating shaft of a motor rotor is used as a part of a transmission shaft, and the output of the engine is not influenced; meanwhile, the motor can be used for operation, and the motor rotates to drive the transmission shaft to transmit energy to the transmission shaft, so that the output of hybrid power is realized. However, as the load demand increases, a motor with larger torque and size needs to be selected, so that the cost is increased and the space occupation is large, different motors are required to be adapted to different loads, the motor types cannot be unified, and the cost is too high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hybrid power take-off, hybrid power system and operation machinery for solve among the prior art along with the defect that the load demand grow leads to motor cost to increase.
The utility model provides a hybrid power take-off, include:
the input end of the power take-off shaft is connected with a power take-off port of the internal combustion engine assembly;
the planetary wheel assembly is used for being in transmission connection with the hydraulic transmission shaft; and the planet wheel assembly can be selectively connected with the output end of the power take-off shaft or the rotating shaft of the electric drive assembly.
According to the utility model provides a pair of hybrid power take-off, the planet wheel subassembly includes:
the input end of the power take-off shaft is connected with a power take-off port of the internal combustion engine assembly;
the planet wheel assembly is used for being in transmission connection with the hydraulic transmission shaft; and the planet wheel assembly can be selectively connected with the output end of the power take-off shaft or the rotating shaft of the electric drive assembly.
According to the utility model provides a pair of hybrid power take-off, the planet wheel subassembly includes:
the sun gear is connected with a rotating shaft of the electric drive assembly;
a planetary gear meshed with the sun gear;
the planet carrier is connected with the output end of the power take-off shaft and is in splined connection with the hydraulic transmission shaft; the planet carrier is connected with the planet wheel;
the gear ring is fixedly arranged relative to the shell of the electric drive assembly, and the inner periphery of the gear ring is meshed with the planet gear;
the rotating shaft of the electric drive assembly is a hollow shaft, the hydraulic transmission shaft penetrates through the hollow shaft, and a gap is reserved between the hydraulic transmission shaft and the hollow shaft.
According to the utility model provides a hybrid power take-off device, the planet carrier comprises a front planet carrier and a rear planet carrier, and the front planet carrier and the rear planet carrier are respectively arranged at two sides of the planet wheel; the front planet carrier is connected with the output end of the power take-off shaft, and the front planet carrier is connected with the hydraulic transmission shaft through splines.
According to the utility model provides a pair of hybrid power take-off, the output of power take-off passes through the flange with preceding planet carrier is connected.
According to the utility model provides a pair of hybrid power take-off, the planet wheel subassembly still includes the shell, the inside of shell is provided with the ring gear, just the shell with electric drive subassembly fixed connection.
According to the utility model provides a pair of hybrid power take-off, the shell with between the planet carrier with all be provided with the bearing between the sun gear.
According to the utility model provides a pair of hybrid power take-off, the inboard of shell still is provided with bearing seal.
According to the utility model provides a pair of hybrid power take-off, the pivot of electric drive subassembly with sun gear splined connection.
The utility model also provides a hybrid power system, include:
an internal combustion engine assembly for providing a first power;
the electric drive assembly is used for providing second power;
a hybrid power take-off as described above.
The utility model also provides an operation machine, include as above the hybrid power system.
The utility model provides a hybrid power take-off, the input of power take-off is used for being connected with the power take-off of internal-combustion engine subassembly, through setting up the planet wheel subassembly alternative and be connected with the output of power take-off or the pivot of electric drive subassembly, utilizes the speed reduction of planet wheel subassembly to increase the turn round characteristic, effectively reduces the moment of torsion of electric drive subassembly, reduces the volume of electric drive subassembly; when dragging different loads, can realize different load outputs through changing planet wheel subassembly reduction ratio, be favorable to unifying the motor model, be favorable to arranging of hybrid power take off and the effective control of cost.
The utility model provides a pair of hybrid power system, owing to include as above hybrid power take-off, consequently possess as above various advantages.
The utility model provides a pair of working machine, owing to include as above hybrid power system, consequently possess as above various advantages.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an installation structure of a hybrid power take-off device provided by the present invention;
fig. 2 is a schematic diagram of an internal structure of the planet wheel assembly provided by the present invention;
fig. 3 is a schematic view of the working principle of the hybrid power take-off provided by the present invention;
fig. 4 is a sectional view of an installation structure of a hybrid power take-off provided by the present invention;
reference numerals are as follows:
1. a power take-off shaft; 2. a planet wheel assembly; 3. an internal combustion engine assembly; 4. a hydraulic transmission shaft; 5. an electric drive assembly; 6. a rotating shaft; 7. a main drive shaft;
21. a sun gear; 22. a planet wheel; 23. a planet carrier; 231. a front planet carrier; 232. a rear planet carrier; 24. a ring gear; 25. a flange; 26. a housing; 27. a bearing; 28. and (5) sealing the bearing.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The hybrid power take-off of the present invention will be described with reference to fig. 1 to 4.
As shown in fig. 1, the utility model provides a hybrid power take-off device, which comprises a power take-off shaft 1 and a planet wheel component 2, wherein the input end of the power take-off shaft 1 is connected with the power take-off port of an internal combustion engine component 3; the planet wheel assembly 2 is used for being in transmission connection with the hydraulic transmission shaft 4; and the planetary wheel assembly 2 can be selectively connected with the output end of the power take-off shaft 1 or the rotating shaft of the electric drive assembly 5.
The internal combustion engine component 3 can be connected with a gearbox, the output of the gearbox is divided into two parts, one part of the output is used as the output of a main transmission shaft 7, the other part of the output is used as the output of a power take-off shaft and is used as a first power source of a hydraulic system, and an electric drive component 5 and a planetary wheel component 2 are additionally arranged on the power take-off shaft 1 and are used as a second power source.
The utility model utilizes the deceleration and torque increasing characteristics of the planet wheel component 2, effectively reduces the torque of the electric drive component 5, and reduces the volume of the electric drive component 5; when dragging different loads, can realize different load outputs through the reduction ratio that changes planet wheel subassembly 2, be favorable to unifying the motor model, reduce the space and account for the ratio, be favorable to hybrid power take-off's the effective control of arranging and cost.
In the embodiment of the present invention, the planetary gear assembly 2 includes a sun gear 21, a planetary gear 22, a planet carrier 23 and a gear ring 24, the sun gear 21 is connected to the rotating shaft 6 of the electric driving assembly 5, that is, the electric driving assembly 5 can drive the sun gear 21 to rotate when driving; the planet wheel 22 is meshed with the sun wheel 21, when the sun wheel 21 is used as a driving wheel, the planet wheel 22 is a driven wheel, and the planet wheel 22 is driven to rotate by the sun wheel 21; the planet carrier 23 is connected with the output end of the power take-off shaft 1, and the planet carrier 23 is in splined connection with the hydraulic transmission shaft 4; and the planet carrier 23 is connected with the planet wheels 22; the ring gear 24 is fixedly arranged relative to the housing of the electric drive assembly 5, and the inner periphery of the ring gear 24 meshes with the planet gears 22; the rotating shaft 6 of the electric drive assembly 5 is a hollow shaft, so that the hydraulic transmission shaft 4 can conveniently penetrate through the hollow shaft, a gap is reserved between the hydraulic transmission shaft 4 and the hollow shaft, and the rotation of the rotating shafts of the hydraulic transmission shaft 4 and the electric drive assembly 5 is not influenced by each other.
The internal combustion engine assembly 3 may be an engine or other driving mechanism. The following description will be made by taking an engine as an example.
When the engine is used for operation, the input end of the power take-off shaft 1 is connected with the power take-off port of the engine, the engine drives the power take-off shaft 1 to rotate, the output end of the power take-off shaft 1 is connected with the planet carrier 23, the output end of the power take-off shaft 1 drives the planet carrier 23 to rotate, the planet carrier 23 is in splined connection with the hydraulic transmission shaft 4, and the planet carrier 23 drives the hydraulic transmission shaft 4 to rotate and serves as a power source of the hydraulic system.
The electric driving component 5 may be a motor, and may also be another electric driving mechanism, and the motor is taken as an example to be described below.
When a motor operation mode is adopted, the rotating shaft 6 rotates, the rotating shaft 6 is connected with the sun wheel 21, the rotating shaft 6 drives the sun wheel 21 to rotate, the gear ring 24 is fixed, the sun wheel 21 is meshed with the planet wheel 22, the planet wheel 22 is connected with the planet carrier 23, the sun wheel 21 rotates to drive the planet carrier 23 to rotate, the planet carrier 23 is connected with the hydraulic transmission shaft 4, and the planet carrier 23 drives the hydraulic transmission shaft 4 to rotate to transmit energy to the hydraulic transmission shaft 4. When different torques are required due to load change, the radiuses of the sun wheel 21 and the planet wheels 22 can be adjusted, the reduction ratio is changed, and the output target is achieved.
Specifically, as shown in fig. 2, the planet carrier 23 includes a front planet carrier 231 and a rear planet carrier 232, and the front planet carrier 231 and the rear planet carrier 232 are respectively disposed on two sides of the planet wheel 22; the front planet carrier 231 is connected with the output end of the power take-off shaft 1, and the front planet carrier 231 is connected with the hydraulic transmission shaft 4 through a spline.
In the embodiment of the present invention, the output end of the power take-off shaft 1 is connected to the front carrier 231 through the flange 25.
In the embodiment of the present invention, the planetary gear assembly 2 further includes a housing 26, the inside of the housing 26 is provided with the gear ring 24, and the housing 26 is fixedly connected with the electric drive assembly 5. The housing 26 and the electric driving assembly 5 may be connected by bolts or other fasteners, and are not limited in this regard, as long as the fixed connection can be achieved. The provision of the housing 26 serves to protect the planet gears 22, the sun gear 21 and the planet carrier 23 whilst providing a mounting platform for the ring gear 24.
The embodiment of the utility model provides an in, all be provided with bearing 27 between shell 26 and the planet carrier 23, between planet carrier 23 and the sun gear 21, can alleviate the friction, make rotatory more smooth and easy, reduce energy resource consumption.
Further, the inside of the housing 26 is provided with a bearing seal 28 to prevent external contaminants from entering the bearing 27.
As shown in fig. 3, in particular, the rotating shaft 6 of the electric drive assembly is splined to the sun gear 21. One of the rotary shaft 6 and the sun gear 21 of the electric drive assembly is provided with an internal spline and the other is provided with an external spline.
As shown in fig. 4, the hybrid power takeoff device provided by the utility model utilizes the coaxiality of the planetary wheel assembly 2 to integrate the electric drive assembly 5 and the planetary wheel assembly 2, and the hydraulic transmission shaft 4 penetrates through the sun gear 21 and the rotating shaft 6 of the electric drive assembly 5, so that the space arrangement is compact, the structure is stable, and the transmission efficiency is high; meanwhile, the torque of the electric drive assembly 5 is effectively reduced by using the speed reduction and torque increase characteristics of the planet wheel assembly 2, the volume of the electric drive assembly 5 is reduced, and the cost of the electric drive assembly 5 is reduced; in addition, the change of the reduction ratio can be realized by changing the radiuses of the sun wheel 21 and the planet wheel 22 in the planet wheel assembly 2, different load outputs can be realized by changing the reduction ratio, the unified model of the electric drive assembly 5 and the unified volume of the electric drive assembly 5 are facilitated, and the arrangement of the hybrid power take-off device and the effective control of the cost are facilitated.
In another aspect, an embodiment of the present invention provides a hybrid power system, including an internal combustion engine assembly, an electric drive assembly, and a hybrid power takeoff device as described above, wherein the internal combustion engine assembly is configured to provide a first power; the electric drive assembly is used for providing second power; the hybrid power take-off is disposed between the internal combustion engine assembly and the electric drive assembly.
An embodiment of the utility model provides a hybrid system, owing to include as above hybrid power take-off, consequently possess as above various advantages.
An embodiment of another aspect of the present invention provides a working machine, including a vehicle, and a hybrid power system as described above.
The internal combustion engine driving assembly is in transmission connection with a running mechanism of a lower vehicle, part of power is transmitted to the running mechanism and used for driving the operation machine to run, the internal combustion engine assembly 3 is further provided with a power take-off port in transmission connection with a power take-off shaft 1, the power take-off shaft 1 is in transmission connection with a hydraulic oil pump of an upper vehicle, and the other part of power of the internal combustion engine assembly 3 is transmitted to the hydraulic oil pump.
An embodiment of the utility model provides a working machine, owing to include as above hybrid power take-off, consequently possess as above various advantages.
In an embodiment of the present invention, the work machine may be a crane.
In an embodiment of the present invention, the work machine may be an excavator.
The work machine may be any other work machine having an on-board and an off-board.
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 it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A hybrid power take-off, comprising:
the input end of the power take-off shaft is connected with a power take-off port of the internal combustion engine assembly;
the planetary wheel assembly is used for being in transmission connection with the hydraulic transmission shaft; and the planet wheel assembly can be selectively connected with the output end of the power take-off shaft or the rotating shaft of the electric drive assembly.
2. A hybrid power take-off according to claim 1 wherein the planet wheel assembly comprises:
the sun wheel is connected with a rotating shaft of the electric drive component;
a planetary gear meshed with the sun gear;
the planet carrier is connected with the output end of the power take-off shaft and is in splined connection with the hydraulic transmission shaft; the planet carrier is connected with the planet wheel;
the gear ring is fixedly arranged relative to a shell of the electric drive assembly, and the inner periphery of the gear ring is meshed with the planet gears;
the rotating shaft is a hollow shaft, the hydraulic transmission shaft penetrates through the hollow shaft, and a gap is reserved between the hydraulic transmission shaft and the hollow shaft.
3. The hybrid power take-off of claim 2, wherein the planet carrier comprises a front planet carrier and a rear planet carrier, the front planet carrier and the rear planet carrier being respectively disposed on both sides of the planet gear; the front planet carrier is connected with the output end of the power take-off shaft, and the front planet carrier is connected with the hydraulic transmission shaft through splines.
4. A hybrid power take-off according to claim 3, wherein the output of the power take-off shaft is connected to the forward carrier by a flange.
5. A hybrid power take-off according to claim 2, wherein the planet wheel assembly further comprises a housing, the ring gear being disposed within the housing, and the housing being fixedly connected to the electric drive assembly.
6. A hybrid power take-off according to claim 5, wherein bearings are provided between the housing and the planet carrier, and between the planet carrier and the sun gear.
7. A hybrid power take-off according to claim 6 wherein the inside of the housing is further provided with a bearing seal.
8. The hybrid power take-off of claim 2 wherein the shaft of the electric drive assembly is splined to the sun.
9. A hybrid powertrain system, comprising:
an internal combustion engine assembly for providing a first power;
the electric driving assembly is used for providing second power;
a hybrid power take-off as claimed in any one of claims 1 to 8.
10. A work machine comprising the hybrid system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221946025.7U CN217944892U (en) | 2022-07-26 | 2022-07-26 | Hybrid power takeoff device, hybrid power system and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221946025.7U CN217944892U (en) | 2022-07-26 | 2022-07-26 | Hybrid power takeoff device, hybrid power system and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217944892U true CN217944892U (en) | 2022-12-02 |
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ID=84224629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221946025.7U Active CN217944892U (en) | 2022-07-26 | 2022-07-26 | Hybrid power takeoff device, hybrid power system and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217944892U (en) |
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2022
- 2022-07-26 CN CN202221946025.7U patent/CN217944892U/en active Active
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