CN218670569U - Oil supply system for transmission, transmission and vehicle - Google Patents
Oil supply system for transmission, transmission and vehicle Download PDFInfo
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- CN218670569U CN218670569U CN202223286116.5U CN202223286116U CN218670569U CN 218670569 U CN218670569 U CN 218670569U CN 202223286116 U CN202223286116 U CN 202223286116U CN 218670569 U CN218670569 U CN 218670569U
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Abstract
The utility model provides an oil feeding system, derailleur and vehicle for derailleur, the utility model discloses an oil feeding system for derailleur, two oil inlets of pair electronic pump respectively with inhale the filter intercommunication, lubricated oil circuit unit includes lubricated fuel feeding main road to and connect in a plurality of lubricated fuel feeding branch roads of lubricated fuel feeding main road one end, the other end of lubricated fuel feeding main road and the first oil-out intercommunication of pair electronic pump, execution oil circuit unit includes the clutch and carries out the fuel feeding oil circuit, the second oil-out intercommunication of its one end and pair electronic pump, the other end is used for the actuating mechanism fuel feeding for the clutch. The utility model discloses an oil feeding system for derailleur is not adopting the valve body structure and not using under the condition of solenoid valve, satisfies the clutch respectively and carries out the pressure demand to and the cooling and lubrication demand of bearing, gear, motor, clutch, this pair electronic pump is installed on gearbox housing, does not occupy the derailleur inner space, and does benefit to the overall cost that reduces oil feeding system by a wide margin.
Description
Technical Field
The utility model relates to a vehicle fuel feeding technical field, in particular to an oil feeding system for derailleur. And simultaneously, the utility model discloses still relate to an use this a derailleur for oil feeding system of derailleur to and a vehicle of using this derailleur.
Background
At present, an oil supply system of a DHT (Dedicated Hybrid Transmission) generally adopts an electronic pump as an execution pump, the displacement of the electronic pump is small, and a relatively high oil pressure can be established to control a clutch; meanwhile, the other electronic pump is used as a lubricating pump, the displacement of the electronic pump is large, and large flow can be provided, so that the lubricating requirements of all parts of the transmission are met. The oil supply system has the advantages that the cost is high and the occupied space is large due to the adoption of the two independent electronic pumps.
In addition, the oil supply system of the DHT can also adopt one or two mechanical pumps, or the mechanical pump and the electronic pump are matched for use, and meanwhile, the electromagnetic valve, the mechanical pump and/or the electronic pump are/is arranged, and the parts are arranged on the valve body to form the hydraulic module.
The hydraulic module generally comprises an upper valve body, a lower valve body and a middle partition plate, oil passages are arranged in the upper valve body and the lower valve body, the upper valve body and the lower valve body are separated by the middle partition plate, an electromagnetic valve used for controlling the pressure and the direction of oil pressure is fixed on the upper valve body or the lower valve body, after the upper valve body and the lower valve body are assembled together, a closed oil passage is formed due to the separation of the middle partition plate, oil is supplied to the hydraulic module through an oil pump, and different oil passages are communicated to different positions on a transmission to meet the requirements of cooling or lubricating different parts.
Adopt hydraulic module to carry out the fuel feeding has two drawbacks, and firstly hydraulic module must occupy the inside certain space of derailleur, causes the difficulty for the overall arrangement of whole case, is unfavorable for the lightweight design, and secondly upper and lower valve body and well intermediate spacer are expensive, are unfavorable for cost control.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to an oil supply system for a transmission, so as to reduce the occupied space and reduce the cost.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an oil supply system for a transmission comprises a suction filter, a duplex electronic pump, a lubricating oil path unit and an execution oil path unit;
the suction filter is used for being installed in an oil pan of the transmission;
a first oil inlet and a second oil inlet of the duplex electronic pump are respectively communicated with the suction filter;
the lubricating oil path unit comprises a lubricating oil supply main path and a plurality of lubricating oil supply branches connected in parallel to one end of the lubricating oil supply main path, and the other end of the lubricating oil supply main path is communicated with a first oil outlet of the duplex electronic pump;
the execution oil way unit comprises a clutch execution oil supply oil way, one end of the clutch execution oil supply oil way is communicated with the second oil outlet of the duplex electronic pump, and the other end of the clutch execution oil supply oil way is used for supplying oil to an execution mechanism of the clutch.
Furthermore, each lubricating oil supply branch is provided with a first throttling hole.
Further, the plurality of lubricating oil supply branches comprise a bearing oil supply branch, and the bearing oil supply branch is used for supplying oil to a bearing of the transmission; and/or the presence of a gas in the gas,
the plurality of lubrication oil supply branches include a gear oil supply branch for supplying oil to a gear of the transmission.
Furthermore, the plurality of lubricating oil supply branches comprise motor oil supply branches, and the motor oil supply branches are used for supplying oil to the motor;
the motor oil supply branch circuits are multiple and are respectively communicated with the lubricating oil supply main circuit.
Furthermore, a plurality of the lubricating oil supply branches comprise a clutch lubricating oil supply branch, and the clutch lubricating oil supply branch is used for supplying oil for clutch lubrication.
Furthermore, the oil supply system further comprises a pressure filter, an oil inlet of the pressure filter is connected to the oil supply path for the clutch, and an oil outlet of the pressure filter is communicated to the oil pan.
Further, a pressure sensor is arranged on the clutch execution oil supply oil path and is arranged at the downstream of the filter press;
and a second throttling hole is formed in a communication oil way of the filter press and the clutch execution oil supply oil way.
Furthermore, an energy accumulator is arranged on the clutch execution oil supply oil path, and the energy accumulator is arranged at the downstream of the pressure filter.
Compared with the prior art, the utility model discloses following advantage has:
a oil feeding system for derailleur, under the condition that does not adopt the valve body structure and does not use the solenoid valve, satisfy clutch execution pressure demand respectively to and the cooling and lubrication demand of bearing, gear, motor, clutch, this pair electronic pump is installed on gearbox housing, need not to adopt hydraulic module, does not occupy the derailleur inner space, and does benefit to the overall cost that reduces oil feeding system by a wide margin.
In addition, the first throttling hole is formed in each lubricating oil supply branch, so that the flow of oil liquid in each lubricating oil supply branch can be conveniently controlled. The plurality of lubricating oil supply branches comprise a bearing oil supply branch, a gear oil supply branch and a clutch lubricating oil supply branch, and lubrication oil supply of the bearing, the gear and the clutch is favorably met. Make a plurality of lubricated fuel feeding branch roads include a plurality of motor fuel feeding branch roads, do benefit to and carry out the fuel feeding for a plurality of motors.
In addition, the filter press is arranged, when the clutch is in a non-working state, a certain amount of oil is still stored in the oil path, and when the clutch is switched to a working state from the non-working state, the oil can be quickly supplied to an actuating mechanism of the clutch, so that the working efficiency of the clutch is improved. The energy accumulator is arranged, so that the oil pressure can be stabilized, and the fluctuation of the oil pressure can be prevented. And the pressure sensor is arranged, so that the pressure in the oil way can be monitored, and the safe and reliable operation of the clutch can be ensured.
Another object of the present invention is to provide a transmission, wherein the transmission is provided with the oil supply system for the transmission.
Furthermore, another object of the present invention is to provide a vehicle, wherein the transmission is provided on the vehicle.
Derailleur and vehicle and aforementioned an oil feeding system for derailleur, have the same beneficial effect for prior art, no longer describe herein.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of an oil supply system for a transmission according to an embodiment of the present invention.
Description of the reference numerals:
1. an oil pan; 2. a suction filter; 3. a duplex electronic pump; 4. a filter press; 5. a second orifice; 6. an accumulator; 7. a pressure sensor; 8. a clutch; 9. a first oil jet; 10. a first orifice; 11. a first motor oil supply branch; 12. a second oil jet; 13. the second motor oil supply branch; 14. a third oil jet; 15. a gear oil supply branch; 16. a fourth oil jet; 17. a bearing oil supply branch; 18. a fifth oil jet; 19. a clutch lubricating oil supply branch; 20. the clutch executes the oil supply oil path; 21. lubricating oil supply main path
301. A first oil inlet; 302. a second oil inlet; 303. a first oil outlet; 304. a second oil outlet.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The embodiment relates to an oil supply system for a transmission, which can save the existing hydraulic module, is beneficial to saving the occupied space and reducing the cost.
Based on the above design concept, an exemplary structure of the oil supply system for the transmission of the present embodiment is shown in fig. 1, and in an overall structure, it mainly includes a suction filter 2, a dual electronic pump 3 connected to the suction filter 2, and a lubricating oil path unit and an actuating oil path unit connected to the dual electronic pump 3. The suction filter 2 is used for being installed in an oil pan 1 of a transmission, the lubricating oil circuit unit is used for meeting the lubricating and cooling oil supply requirements of the transmission, a motor and a clutch 8, and the executing oil circuit unit is used for meeting the oil supply requirements of a clutch executing mechanism.
In this embodiment, the first oil inlet 301 and the second oil inlet 302 of the dual electronic pump 3 are respectively communicated with the suction filter 2, the lubricating oil path unit includes a lubricating oil supply main path 21 and a plurality of lubricating oil supply branches connected in parallel to one end of the lubricating oil supply main path 21, and the other end of the lubricating oil supply main path 21 is communicated with the first oil outlet 303 of the dual electronic pump 3.
The execution oil path unit comprises a clutch execution oil supply path 20, one end of the clutch execution oil supply path 20 is communicated with the second oil outlet 304 of the duplex electronic pump 3, and the other end of the clutch execution oil supply path is used for supplying oil to an execution mechanism of the clutch 8. The oil can enter the clutch 8 through the clutch execution oil supply path 20, and the friction plate of the clutch 8 is pressed tightly through the oil pressure, so that the torque is transmitted.
In a preferred embodiment, each of the lubrication oil supply branches is provided with a first orifice 10 to facilitate control of the oil flow rate of each of the lubrication oil supply branches, and in this embodiment, the first orifices 10 are provided in a bearing oil supply branch 17, a gear oil supply branch 15, each of the motor oil supply branches, and a clutch lubrication oil supply branch 19, which will be described below.
In a preferred embodiment, the plurality of lubrication oil supply branches includes a bearing oil supply branch 17, one end of the bearing oil supply branch 17 is connected to the lubrication oil supply main path 21, and the other end is provided with a fifth oil jet 18 opened toward the bearing so as to supply oil to the bearing of the transmission. The structure, shape and mounting on the transmission of the bearing oil supply branch 17 can be referred to in the prior art.
In the preferred embodiment, the plurality of lubrication oil supply branches includes a gear oil supply branch 15, one end of the gear oil supply branch 15 is connected to the lubrication oil supply main path 21, and the other end is provided with a fourth oil injection port 16 opened toward the gear so as to supply oil to the gear of the transmission. Here, the structure, shape and mounting manner of the gear oil supply branch 15 on the transmission can be referred to the prior art.
In a preferred embodiment, the plurality of lubricating oil supply branches include motor oil supply branches, each motor oil supply branch has one end connected to the lubricating oil supply main path 21 and the other end provided with an oil nozzle with an opening facing the gear, the plurality of motor oil supply branches are respectively communicated with the lubricating oil supply main path 21.
Specifically, the number of the motor oil supply branches is the same as that of the motors matched with the transmission, so that the motor oil supply branches supply oil to the motors respectively to meet the lubricating and cooling requirements of the motors. For example, each motor oil supply branch can be further provided with a plurality of branch oil paths, so that the plurality of branch oil paths respectively meet the lubricating and cooling requirements of a bearing, a stator and a rotor of the motor.
In this embodiment, the plurality of motor oil supply branches include a first motor oil supply branch 11 and a second motor oil supply branch 13, where the first motor oil supply branch 11 is used for supplying oil to the GM generator, and the second motor oil supply branch 13 is used for supplying oil to the TM motor.
For one end of the first motor oil supply branch 11 communicated with the lubricating oil supply main path 21, the other end of the first motor oil supply branch 11 is provided with a second oil injection port 12, and for one end of the second motor oil supply branch 13 communicated with the lubricating oil supply main path 21, the other end of the second motor oil supply branch 13 is provided with a third oil injection port 14. Here, the structure, shape and mounting manner of the first and second motor oil supply branches 11 and 13 on the motor may refer to the prior art.
In a preferred embodiment, the plurality of lubrication oil supply branches includes a clutch lubrication oil supply branch 19, one end of the clutch lubrication oil supply branch 19 is communicated with the lubrication oil supply main path 21, and the other end is provided with a first oil injection port 9 which is opened towards the clutch 8, so as to meet the lubrication oil supply of the clutch 8. Here, the structure, shape and installation of the clutch lubrication oil supply branch 19 can be referred to the prior art.
As a preferred embodiment, the oil supply system further includes a pressure filter 4, an oil inlet of the pressure filter 4 is connected to the clutch performance oil supply passage 20, and an oil outlet of the pressure filter 4 is communicated to the inside of the oil pan 1.
In the preferred embodiment, the clutch actuation oil supply line 20 is provided with a pressure sensor 7, and the pressure sensor 7 is arranged at the downstream of the pressure filter 4, and can measure specific oil pressure data which can be transmitted to a control system so as to control the oil flow through the control system, thereby being beneficial to ensuring safe and reliable operation of the clutch 8.
In the structure, the second throttling hole 5 is formed in the communicating oil way of the oil supply oil way 20 executed by the filter press 4 and the clutch, a part of oil enters the filter press 4 through the second throttling hole 5 and then returns to the oil pan 1, the filter press 4 filters the oil in the process, and the oil is purified.
In the preferred embodiment, the accumulator 6 is provided in the clutch oil supply passage 20, and the accumulator 6 is provided downstream of the filter press 4 to prevent the oil pressure from fluctuating. Preferably, the accumulator 6 and the pressure sensor 7 are connected to the same position of the clutch oil supply path 20 and are disposed near the end connected to the clutch 8, so as to better ensure safe and reliable operation of the clutch 8.
The embodiment is used for an oil supply system of a transmission, the duplex electronic pump 3 can rotate in two forward and reverse directions, the duplex electronic pump 3 is controlled to rotate in the forward direction, a high oil pressure is established for the clutch execution oil supply oil path 20, and the pressure in the oil path is controlled by adjusting the rotating speed. When the duplex electronic pump 3 rotates in the positive direction, the clutch 8 is controlled to be combined, so that torque is transmitted, and meanwhile, enough cooling and lubricating flow can be provided for the main lubricating oil supply path 21. When the dual electronic pump 3 rotates reversely, the pressure of the clutch execution oil supply passage 20 cannot be built up, but sufficient cooling lubrication flow can be provided for the lubrication oil supply main passage 21.
When the clutch 8 is to be opened (non-working state), oil pressure is not needed in the cavity of the clutch 8 at the moment, the duplex electronic pump 3 is changed from positive rotation to reverse rotation and does not supply oil to the oil circuit any more, and the hydraulic oil in the oil circuit returns to the oil pan 1 through the second throttling hole 5 and the pressure filter 4 at the moment, so that the pressure relief of the oil circuit is realized.
After the oil circuit is decompressed, the clutch 8 is opened under the action of the self return spring, and torque transmission is not carried out any more. Meanwhile, the one-way valve is arranged in the pressure filter 4, a back pressure is generated in the oil path of the clutch 8, so that oil liquid can not flow back to the oil pan 1 completely when the oil path is depressurized, namely the oil liquid is full of the oil path at the moment, only the pressure is low, a lower back pressure can be kept in the oil path, and the purpose of reducing the time for oil charging and pressure building of the clutch 8 next time is facilitated.
When the clutch 8 is in the open state, the clutch execution oil supply path 20 does not need oil pressure, and the dual electronic pump 3 is reversely rotated, so that oil is not supplied to the clutch execution oil supply path 20, and only enough oil is supplied to the lubrication oil supply main path 21.
As with the oil supply system, hydraulic oil can respectively reach the second oil injection port 12, the third oil injection port 14, the fourth oil injection port 16 and the fifth oil injection port 18 through the throttling holes so as to respectively provide oil required by cooling and lubricating for a bearing, a gear, a TM motor and a GM generator in the transmission. And, hydraulic oil can also reach first oil spout 9 through first orifice 10, for the required fluid of clutch 8 cooling lubrication that provides.
In addition, the oil supply system adopts the duplex electronic pump 3, the pressure requirement of the clutch execution oil supply oil way 20 and the oil flow requirement of the lubrication oil supply main circuit 21 can be met simultaneously, the cost is lower compared with the conventional double-electronic-pump scheme, and the cost can be greatly reduced compared with the conventional scheme of adopting a hydraulic module to supply oil. The duplex electronic pump 3 of the embodiment can be installed on a transmission shell, and compared with a conventional structure adopting double electronic pumps and a hydraulic module, the duplex electronic pump can greatly reduce the occupied space of an oil supply system.
In addition, under the condition that a valve body structure is not adopted and an electromagnetic valve is not used, the pressure requirement of the clutch execution oil supply oil way 20 and the cooling and lubricating requirements of a bearing, a gear, a motor and the clutch 8 are met respectively, the duplex electronic pump 3 is installed on a transmission shell, a hydraulic module is not needed, the internal space of the transmission is not occupied, and the overall cost of an oil supply system is favorably and greatly reduced.
Meanwhile, the embodiment also relates to a transmission, and the transmission is provided with the oil supply system for the transmission. The transmission of the embodiment can reduce cost and occupied space by applying the oil supply system for the transmission, and is convenient to arrange on a vehicle.
In addition, the embodiment also relates to a vehicle, and the vehicle is provided with the transmission. The transmission vehicle of the embodiment can reduce the weight of the vehicle, is beneficial to the compact arrangement of the vehicle and the reduction of the vehicle cost by applying the transmission, and has better practicability.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An oil supply system for a transmission, characterized in that:
comprises a suction filter (2), a duplex electronic pump (3), a lubricating oil circuit unit and an execution oil circuit unit;
the suction filter (2) is used for being mounted into an oil pan (1) of the transmission;
a first oil inlet (301) and a second oil inlet (302) of the duplex electronic pump (3) are respectively communicated with the suction filter (2);
the lubricating oil path unit comprises a lubricating oil supply main path (21) and a plurality of lubricating oil supply branch paths connected in parallel to one end of the lubricating oil supply main path (21), and the other end of the lubricating oil supply main path (21) is communicated with a first oil outlet (303) of the duplex electronic pump (3);
the execution oil circuit unit comprises a clutch execution oil supply oil circuit (20), one end of the clutch execution oil supply oil circuit (20) is communicated with a second oil outlet (304) of the duplex electronic pump (3), and the other end of the clutch execution oil supply oil circuit is used for supplying oil to an execution mechanism of the clutch (8).
2. The oil supply system for a transmission according to claim 1, wherein:
and each lubricating oil supply branch is provided with a first throttling hole (10).
3. The oil supply system for a transmission according to claim 2, wherein:
the plurality of lubricating oil supply branches comprise a bearing oil supply branch (17), and the bearing oil supply branch (17) is used for supplying oil to a bearing of the speed changer; and/or the presence of a gas in the gas,
the plurality of lubricating oil supply branches comprise a gear oil supply branch (15), and the gear oil supply branch (15) is used for supplying oil to a gear of the transmission.
4. The oil supply system for a transmission according to claim 2, wherein:
the plurality of lubricating oil supply branches comprise motor oil supply branches, and the motor oil supply branches are used for supplying oil to the motor;
the motor oil supply branch circuits are multiple and are respectively communicated with the lubricating oil supply main circuit (21).
5. The oil supply system for a transmission according to claim 2, wherein:
the lubricating oil supply branches comprise clutch lubricating oil supply branches (19), and the clutch lubricating oil supply branches (19) are used for supplying lubricating oil to the clutch (8).
6. The oil supply system for a transmission according to any one of claims 1 to 5, wherein:
the oil supply system further comprises a pressure filter (4), an oil inlet of the pressure filter (4) is connected to the clutch execution oil supply oil path (20), and an oil outlet of the pressure filter (4) is communicated into the oil pan (1).
7. The oil supply system for a transmission according to claim 6, wherein:
a pressure sensor (7) is arranged on the clutch execution oil supply oil way (20), and the pressure sensor (7) is arranged at the downstream of the filter press (4);
and a second throttling hole (5) is formed in a communication oil way of the filter press (4) and the clutch execution oil supply oil way (20).
8. The oil supply system for a transmission according to claim 6, wherein:
and an energy accumulator (6) is arranged on the clutch execution oil supply oil way (20), and the energy accumulator (6) is arranged at the downstream of the pressure filter (4).
9. A transmission, characterized by:
the transmission is provided with the oil supply system for a transmission according to any one of claims 1 to 8.
10. A vehicle, characterized in that:
the vehicle is provided with the transmission of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223286116.5U CN218670569U (en) | 2022-12-07 | 2022-12-07 | Oil supply system for transmission, transmission and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223286116.5U CN218670569U (en) | 2022-12-07 | 2022-12-07 | Oil supply system for transmission, transmission and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218670569U true CN218670569U (en) | 2023-03-21 |
Family
ID=85548278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223286116.5U Active CN218670569U (en) | 2022-12-07 | 2022-12-07 | Oil supply system for transmission, transmission and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218670569U (en) |
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2022
- 2022-12-07 CN CN202223286116.5U patent/CN218670569U/en active Active
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