CN111336222B - Four-speed transmission with power output - Google Patents
Four-speed transmission with power output Download PDFInfo
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- CN111336222B CN111336222B CN201911340690.4A CN201911340690A CN111336222B CN 111336222 B CN111336222 B CN 111336222B CN 201911340690 A CN201911340690 A CN 201911340690A CN 111336222 B CN111336222 B CN 111336222B
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- clutch
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- shaft
- gear pair
- power
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- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
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- 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
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- 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
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- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions
- F16H2003/008—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions comprising means for selectively driving countershafts
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- 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
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- 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
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- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Abstract
本发明公开了一种带动力输出的四挡变速器，四挡变速器包括输入轴、输出轴、中间轴、第一离合器、第二离合器、第三离合器、第四离合器、壳体和动力电机；所述输入轴的中心线与所述输出轴的中心线共线设置，所述输入轴的输入端与所述输出轴的输出端分别贯穿所述壳体相对的两侧壁设置在壳体上，输入轴通过所述第一离合器或所述第二离合器将动力传导中间轴，然后中间轴传导通过所述第三离合器或所述第四离合器，将动力传导到输出轴，所述中间轴的一端与所述动力电机的转动端传动连接。使得混合动力车的结构更加紧凑，占用空间小。
The invention discloses a four-speed transmission with power output, which comprises an input shaft, an output shaft, an intermediate shaft, a first clutch, a second clutch, a third clutch, a fourth clutch, a housing and a power motor; the center line of the input shaft is arranged in a colinear manner with the center line of the output shaft, the input end of the input shaft and the output end of the output shaft respectively penetrate the two opposite side walls of the housing and are arranged on the housing, the input shaft transmits power to the intermediate shaft through the first clutch or the second clutch, and then the intermediate shaft transmits power through the third clutch or the fourth clutch to the output shaft, and one end of the intermediate shaft is drivingly connected to the rotating end of the power motor. This makes the structure of the hybrid vehicle more compact and occupies less space.
Description
Technical Field
The invention relates to the field of speed changers, in particular to a four-gear speed changer with power output.
Background
The speed changer can change different torques input before and after through different gear changes and different power driving. The transmission can be switched in different gear positions by switching different clutches of the transmission, and meanwhile, the hybrid power driving of the transmission can be realized by adding a power motor to an engine in the hybrid power vehicle system. The hybrid electric vehicle has the characteristics of energy conservation and low emission. The existing hybrid power system is generally used on a small-sized automobile, the existing hybrid power system of a large-sized automobile is relatively bulky, and if a power motor is additionally arranged, the two ends of the power motor are generally connected with a transmission respectively, so that the transmission is large in size and large in occupied space.
Disclosure of Invention
Therefore, it is desirable to provide a four-speed transmission with power output to solve the problem of large volume occupation of the transmission in a hybrid vehicle.
In order to achieve the above object, the present inventors have provided a four-speed transmission with power output, the four-speed transmission including an input shaft, an output shaft, an intermediate shaft, a first clutch, a second clutch, a third clutch, a fourth clutch, a housing, and a power motor;
The center line of the input shaft and the center line of the output shaft are arranged in a collinear way, the input end of the input shaft and the output end of the output shaft respectively penetrate through two opposite side walls of the shell and are arranged on the shell, the input shaft conducts power to the intermediate shaft through the first clutch or the second clutch, and then the intermediate shaft conducts power to the output shaft through the third clutch or the fourth clutch;
One end of the intermediate shaft is in transmission connection with the rotating end of the power motor, the power motor is arranged outside the shell, and the power motor is used for transmitting power to the intermediate shaft.
Further, the first clutch and the second clutch are a first switching type double clutch, the third clutch and the fourth clutch are a second switching type double clutch, and the first switching type double clutch and the second switching type double clutch are the same switching type double clutch;
the switching double clutch comprises a first clutch block, a second clutch block and a piston unit, wherein the first clutch block is positioned on one side of the piston unit, the second clutch block is positioned on the other side of the piston unit, and the piston unit is used for enabling the first clutch block and the second clutch block to be in clutch;
A first gear pair is arranged between the input shaft and the intermediate shaft, one gear of the first gear pair is movably sleeved on the input shaft, the other gear of the first gear pair is arranged on the intermediate shaft, a second gear pair is arranged between the input shaft and the intermediate shaft, one gear of the second gear pair is movably sleeved on the input shaft, the other gear of the second gear pair is arranged on the intermediate shaft, a third gear pair is arranged between the output shaft and the intermediate shaft, one gear of the third gear pair is movably sleeved on the output shaft, the other gear of the third gear pair is arranged on the intermediate shaft, a fourth gear pair is arranged between the output shaft and the intermediate shaft, one gear of the fourth gear pair is movably sleeved on the output shaft, and the other gear of the fourth gear pair is arranged on the intermediate shaft;
The first clutch block of the first switching type double clutch is used for the gear clutch of the input shaft and the first gear pair, the second clutch block of the first switching type double clutch is used for the gear clutch of the input shaft and the second gear pair, and the first clutch block of the first switching type double clutch and the second clutch block of the first switching type double clutch are mutually exclusive clutch;
The first clutch block of the second switching type double clutch is used for the gear clutch of the output shaft and the third gear pair, the second clutch block of the second switching type double clutch is used for the gear clutch of the output shaft and the fourth gear pair, and the first clutch block of the second switching type double clutch and the second clutch block of the second switching type double clutch are mutually exclusive clutch.
Further, the piston unit comprises a double-ended piston body and a cavity;
the cross section of double-end piston body is the I shape, the one end setting of double-end piston body is in the cavity, and the other end of double-end piston body is located the outside of cavity, and the both ends of cavity are connected with a hydraulic unit respectively.
Further, the first clutch block comprises a first friction plate group, the second clutch block comprises a second friction plate group, the first friction plate group is located on one side of the other end of the double-head piston body, the second friction plate group is located on the other side of the other end of the double-head piston body, and the double-head piston body is used for driving one group of the first friction plate group or the second friction plate group to be combined and the other group of the first friction plate group or the second friction plate group to be separated.
Further, the second gear pair and the third gear pair are composed of the same gear pair.
Further, a key groove is formed in the shaft surface of the intermediate shaft, and the output end of the power motor is fixedly connected in the key groove.
Further, the number of the intermediate shafts is multiple, the intermediate shafts are annularly arrayed around the central lines of the input shaft and the output shaft, the multiple intermediate shafts are identical in structure, and each intermediate shaft is connected with a power motor.
Further, the power motor is a direct current power motor.
Different from the prior art, the power motor additionally arranged on the intermediate shaft in the technical scheme and the power positioned on the input shaft jointly drive the transmission. When needed, the power motor can also independently provide power for the transmission to drive the transmission to operate. During common operation, the power motor shares the load of the output shaft and the power of the input shaft to realize the output of the hybrid power. Because the power motor is arranged on the middle shaft at the side edge of the speed changer, and is not arranged on the output shaft, the structure is more compact, and the occupied space is reduced.
Drawings
FIG. 1 is a simplified schematic diagram of a four speed transmission according to an embodiment;
FIG. 2 is a schematic illustration of a configuration of a four speed transmission according to an embodiment;
FIG. 3 is another structural schematic diagram of a four speed transmission according to the present embodiment;
Fig. 4 is a schematic structural diagram of a switching dual clutch according to an embodiment.
Reference numerals illustrate:
1. A four speed transmission;
11. an input shaft;
12. An output shaft;
13. An intermediate shaft;
14. A housing;
15. A first gear pair;
16. A second gear pair;
161. A common gear pair;
17. a third gear pair;
18. a fourth gear pair;
2. a power motor;
3. A switching clutch;
31. A first clutch block;
311. a first friction plate group;
32. A second clutch block;
321. a second friction plate group;
33. A double-ended piston body;
34. A cavity;
35. a hydraulic unit;
36. A first switching clutch;
37. A second switching clutch;
k1, a first clutch;
K2, a second clutch;
K3, a third clutch;
k4, a fourth clutch.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides a four-speed transmission with power output, which includes an input shaft 11, an output shaft 12, an intermediate shaft 13, a first clutch K1, a second clutch K2, a third clutch K3, a fourth clutch K4, a housing 14, and a power motor 2, wherein a center line of the input shaft 11 is arranged in line with a center line of the output shaft 12, an input end of the input shaft 11 and an output end of the output shaft 12 are respectively arranged on the housing 14 through opposite side walls of the housing 14, the input shaft 11 transmits power to the intermediate shaft 13 through the first clutch K1 or the second clutch K2, then the intermediate shaft 13 transmits power to the output shaft 12 through the third clutch K3 or the fourth clutch K3, and a center line of the intermediate shaft 13 is arranged in the housing 14 in parallel with the center line of the input shaft 11. The housing 14 may protect various components of the four-speed transmission, such as the input shaft 11, the output shaft 12, the intermediate shaft 13, the first clutch k1, the second clutch k2, the third clutch k3, and the fourth clutch k4. One end of the intermediate shaft 13 is in transmission connection with a rotating end of the power motor 2, the power motor 2 is arranged outside the shell 14, the power motor 2 is used for transmitting power to the intermediate shaft 13, and the power motor 2 can be a direct current power motor, an alternating current power motor, a permanent magnet synchronous motor and the like.
In some embodiments, to provide a power source for the four-speed transmission 1, a power mechanism may be connected to the input end of the input shaft 11, and the power mechanism is configured to drive the input shaft 11 to rotate.
In this embodiment, the connection between the power motor and the intermediate shaft is a direct connection. Specifically, a key groove is formed in the shaft surface of the intermediate shaft, and the output end of the power motor can be inserted into and fixed in the key groove in an interference fit mode. Or the direct connection may be other embodiments, for example, the output end of the power motor and one end of the intermediate shaft are connected through a coupling.
In some embodiments, the connection of the power motor and the intermediate shaft may be a geared connection. Specifically, a gear is sleeved on the output shaft of the power motor, a gear is sleeved on the intermediate shaft, and the gear on the power motor is meshed with the gear on the intermediate shaft, so that the power motor drives the output shaft to rotate.
In general, in order to implement the operation of the clutch, the clutch is disposed on the power input end, one end of the clutch is connected to the power input end, and the other end is connected to the power output end. In this embodiment, the power input end may be an input shaft, and the power output end may be a gear rotatably sleeved on the input shaft, or the power output end may be an output shaft, and the power input end may be a gear rotatably sleeved on the output shaft.
In some embodiments, the first clutch k1, the second clutch k2, the third clutch k3 and the fourth clutch k4 are existing clutch structures, such as friction clutches and hydraulic clutches, and the clutches only play a role in transmitting power. In the case of friction clutches, one friction clutch is provided next to each gear wheel of each gear pair. One end of the friction clutch is fixed on the input shaft (or the output shaft), the other end of the friction clutch is connected with a gear of the gear pair, when the friction clutch is in a closed state, the input shaft (or the output shaft) is in transmission with the gear, and when the friction clutch is in an off state, the input shaft (or the output shaft) is not in transmission with the gear.
The existing clutch is adopted to solve the problem that the conventional transmission has teeth when the clutch is switched in order to optimize the structure of the transmission and make the overall structure simpler because the two clutches are simultaneously in a combined state, so in the embodiment, the first clutch and the second clutch form a first switching type double clutch 36, the third clutch and the fourth clutch form a second switching type double clutch 37, and the first switching type double clutch and the second switching type double clutch are the same switching type double clutch 3. The switching double clutch 3 comprises a first clutch block 31, a second clutch block 32 and a piston unit. The first clutch block 31 is located at one side of the piston unit, the second clutch block 32 is located at the other side of the piston unit, and the piston unit is used for enabling the first clutch block 31 and the second clutch block 32 to be engaged and disengaged. The piston unit of the switching double clutch 3 can only independently push the first clutch block 31 or the second clutch block 32 to be in the on state, so that the condition of being in the on state at the same time is avoided.
Referring to fig. 2, in some embodiments, a first gear pair is disposed between the input shaft and the intermediate shaft, a gear of the first gear pair 15 is movably sleeved on the input shaft, another gear of the first gear pair 15 is disposed on the intermediate shaft, a second gear pair 16 is disposed between the input shaft and the intermediate shaft, a gear of the second gear pair 16 is movably sleeved on the input shaft, another gear of the second gear pair 16 is disposed on the intermediate shaft, a third gear pair 17 is disposed between the output shaft and the intermediate shaft, a gear of the third gear pair 17 is movably sleeved on the output shaft, another gear of the third gear pair 17 is disposed on the intermediate shaft, a fourth gear pair 18 is disposed between the output shaft and the intermediate shaft, a gear of the fourth gear pair 18 is movably sleeved on the output shaft, and another gear of the fourth gear pair 18 is disposed on the intermediate shaft. The input shaft is in transmission connection with the intermediate shaft through the first gear pair and the second gear pair, and the output shaft is in transmission connection with the intermediate shaft through the third gear pair and the fourth gear pair. The first clutch block (realizing the function of a first clutch K1) of the first switching type double clutch is used for the gear clutch of the input shaft and the first gear pair, the second clutch block (realizing the function of the first clutch K2) of the first switching type double clutch is used for the gear clutch of the input shaft and the second gear pair, and the first clutch block of the first switching type double clutch and the second clutch block of the first switching type double clutch are mutually exclusive clutch. The first clutch block (realizing the function of a first clutch K3) of the second switching type double clutch is used for the gear clutch of the output shaft and the third gear pair, the second clutch block (realizing the function of the first clutch K4) of the second switching type double clutch is used for the gear clutch of the output shaft and the fourth gear pair, and the first clutch block of the second switching type double clutch and the second clutch block of the second switching type double clutch are mutually exclusive clutch. Through the gear pair and the switching double clutch, whether the power of the input shaft is transmitted to the intermediate shaft can be realized, and through the difference of the gear ratios of the gear pair arranged on the input shaft, the power of the input shaft can be transmitted to the intermediate shaft with different torques. Meanwhile, whether the power of the intermediate shaft is transmitted to the output shaft or not can be realized, and the power of the intermediate shaft can be transmitted to the output shaft in different torques through the difference of the gear ratios of the gear pairs arranged on the output shaft. The gear change of the four-gear gearbox is realized by controlling the change of torque in the power transmission process.
The piston unit can be pushed left and right respectively, so that the clutch blocks on two sides can be engaged and disengaged. In this embodiment, one piston unit includes a double-ended piston body 33 and a cavity 34, the cross section of the double-ended piston body 33 is i-shaped, one end of the double-ended piston body 33 is disposed in the cavity 34, and the other end of the double-ended piston body 33 is located outside the cavity 34. The double-end piston body 33 only can push one clutch block and the gear pair to form a combined state, so that one switching double clutch 3 can only be in a combined state with one gear pair, and can be in a separated state with the other gear pair, the condition that the clutch blocks on two sides are simultaneously combined can not occur, and the gear shifting of the transmission is more accurate and flexible. Meanwhile, the other end of the double-ended piston body is arranged outside the cavity 34 and used for pushing the clutch blocks on two sides to clutch, so that the transverse width of the double-ended piston body 33 is reduced, and the structure is compact.
Referring to fig. 3, in order to reduce the excessive gear arrangement and to optimize the structure, in the present embodiment, the second gear pair 16 and the third gear pair 17 are formed as the same gear pair, i.e. a common gear pair, and the gear pair formed by the second gear pair 16 and the third gear pair 17 is herein referred to as a common gear pair 161. One gear of the common gear pair 161 may be movably disposed on the input shaft or may be movably disposed on the output shaft, and the other gear may be disposed on the intermediate shaft. Here, taking the case that the common gear pair is movably disposed on the output shaft, the second clutch block of the first switching type dual clutch 36 is used for a gear clutch of the input shaft and the common gear pair 161, and the first clutch block of the second switching type dual clutch 37 is used for a gear clutch of the output shaft and the common gear pair 161. The remaining first gear pair 15 and third gear pair 18 remain unchanged, and the function of each clutch block of the remaining switching double clutch is that the first clutch block of the first switching double clutch 36 is used for the input shaft to clutch with a gear of the first gear pair 15, and the second clutch block of the second switching double clutch 37 is used for the output shaft to clutch with a gear of the fourth gear pair.
In order to realize the clutch structure inside the clutch, a clutch mode of friction plates can be adopted, the first clutch block comprises a first friction plate group, the second clutch block comprises a second friction plate group, the first friction plate group is positioned on one side of the other end of the double-end piston body, the second friction plate group is positioned on the other side of the other end of the double-end piston body, and the double-end piston body is used for driving one group of the first friction plate group or the second friction plate group to be combined and the other group to be separated. Namely, the friction plate of the first clutch block or the friction plate of the second clutch block is pushed by the double-headed piston body, so that the first clutch block or the second clutch block can be engaged.
In this embodiment, the double-ended piston body is used for pushing the first friction plate group and the second friction plate group, and in order to provide power for the double-ended piston body, two ends of the cavity of the switching double clutch are respectively connected with a hydraulic unit for driving the movement of the double-ended piston body. The hydraulic unit 35 includes a hydraulic pump and a hydraulic pipe, one end of the hydraulic pipe is connected with the hydraulic pump, the other end of the hydraulic pipe is communicated with the cavity, the hydraulic pipe includes a first hydraulic pipe and a second hydraulic pipe, the first hydraulic pipe is communicated with the cavity on the left side of the double-headed piston body, and the second hydraulic pipe is communicated with the cavity on the right side of the double-headed piston body. The hydraulic pipeline is filled with hydraulic oil, and the hydraulic pipeline is full of hydraulic oil and can respectively convey the hydraulic oil to the cavity. Therefore, after the hydraulic oil in the hydraulic pipeline on one side is pressurized, the oil pressure in the cavity is unbalanced, and the double-end piston body is driven to move in the cavity, so that the aim of controlling the double-end piston body to move in the cavity through the oil pressure of the hydraulic oil is fulfilled.
In the present embodiment, the first gear pair, the common gear pair, and the first switching double clutch are exemplified. Through exerting pressure to the hydraulic oil in the second hydraulic pressure pipeline, the pressure of the hydraulic oil in the second hydraulic pressure pipeline is greater than first hydraulic pressure pipeline, promotes the double-end piston body to one side of first hydraulic pressure pipeline removes to make between first clutch block and the first gear pair of first switching formula double clutch be the state of closing, at this moment the second clutch block of first switching formula double clutch with a gear of sharing gear pair is the state of leaving. Similarly, the pressure of hydraulic oil in the first hydraulic pipeline is larger than that of the second hydraulic pipeline, the double-headed piston body is pushed to move to one side of the second hydraulic pipeline, so that the second clutch block of the first switching type double clutch and a gear of the common gear pair are in a combined state, and at the moment, the first clutch block of the first switching type double clutch and the first gear pair are in a separated state. Further, the pressure in the hydraulic pipelines at two sides is equal, and then the double-headed piston body is located at the middle position in the cavity, so that the second clutch block of the first switching type double clutch is in a state of being away from the common gear, and the first clutch block of the first switching type double clutch is in a state of being away from the first gear pair, namely, a neutral gear state is realized.
In this embodiment, the number of intermediate shafts is two, the intermediate shafts are annularly arranged around the central line of the input shaft or the output shaft, and any one end of the intermediate shaft may be provided with the power motor. The power motor may be provided on the same side as the input shaft or on the same side as the output shaft, as the actual need arises. In certain embodiments, the number of intermediate shafts is a plurality, and may be two, three, or four or even more. The plurality of intermediate shafts are disposed in a circumferential array on a central axis of the input shaft or the output shaft. The intermediate shafts as two may be provided at upper and lower positions of the input shaft and the output shaft, respectively. The intermediate shafts have the same structure, such as gears with the same teeth number and the same tooth width. Therefore, the load of the input shaft and the load of the output shaft can be distributed through the plurality of intermediate shafts, so that the bending strength of the input shaft, the intermediate shafts and the output shaft can be enhanced, the bearing capacity of the input shaft and the output shaft can be improved, and the purpose of improving the load can be achieved. Meanwhile, under the condition of the same output power, the lengths of the single bodies of the power motors can be greatly reduced relative to one power motor, so that the length of the hybrid power system can be greatly reduced, and the structure is compact. Particularly in the field of mine vehicles and the like which need high-power motors, a plurality of small-power motors can be adopted as the power motors of the existing passenger vehicles, so that the cost can be greatly reduced. The power motor drives the operation of the transmission either together with the power mechanism or separately. When the power motors are driven together, the power motors are driven as auxiliary power matched with a power system, and in some cases, the power motors can also independently drive a transmission to work.
It should be noted that, although the foregoing embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concepts of the present invention, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solution, directly or indirectly, to other relevant technical fields, all of which are included in the scope of the invention.
Claims (4)
1. A four-gear transmission with power output is characterized by comprising an input shaft, an output shaft, an intermediate shaft, a first clutch, a second clutch, a third clutch, a fourth clutch, a shell and a power motor;
The center line of the input shaft and the center line of the output shaft are arranged in a collinear way, the input end of the input shaft and the output end of the output shaft respectively penetrate through two opposite side walls of the shell and are arranged on the shell, the input shaft conducts power to the intermediate shaft through the first clutch or the second clutch, and then the intermediate shaft conducts power to the output shaft through the third clutch or the fourth clutch;
One end of the intermediate shaft is in transmission connection with the rotating end of the power motor, the power motor is arranged outside the shell, and the power motor is used for transmitting power to the intermediate shaft;
the first clutch and the second clutch are first switching type double clutches, the third clutch and the fourth clutch are second switching type double clutches, and the first switching type double clutches and the second switching type double clutches are the same switching type double clutches;
the switching double clutch comprises a first clutch block, a second clutch block and a piston unit, wherein the first clutch block is positioned on one side of the piston unit, the second clutch block is positioned on the other side of the piston unit, and the piston unit is used for enabling the first clutch block and the second clutch block to be in clutch;
A first gear pair is arranged between the input shaft and the intermediate shaft, one gear of the first gear pair is movably sleeved on the input shaft, the other gear of the first gear pair is arranged on the intermediate shaft, a second gear pair is arranged between the input shaft and the intermediate shaft, one gear of the second gear pair is movably sleeved on the input shaft, the other gear of the second gear pair is arranged on the intermediate shaft, a third gear pair is arranged between the output shaft and the intermediate shaft, one gear of the third gear pair is movably sleeved on the output shaft, the other gear of the third gear pair is arranged on the intermediate shaft, a fourth gear pair is arranged between the output shaft and the intermediate shaft, one gear of the fourth gear pair is movably sleeved on the output shaft, and the other gear of the fourth gear pair is arranged on the intermediate shaft;
The first clutch block of the first switching type double clutch is used for the gear clutch of the input shaft and the first gear pair, the second clutch block of the first switching type double clutch is used for the gear clutch of the input shaft and the second gear pair, and the first clutch block of the first switching type double clutch and the second clutch block of the first switching type double clutch are mutually exclusive clutch;
the first clutch block of the second switching type double clutch is used for the gear clutch of the output shaft and the third gear pair, the second clutch block of the second switching type double clutch is used for the gear clutch of the output shaft and the fourth gear pair, and the first clutch block of the second switching type double clutch and the second clutch block of the second switching type double clutch are mutually exclusive clutch;
the piston unit comprises a double-ended piston body and a cavity;
The cross section of the double-headed piston body is I-shaped, one end of the double-headed piston body is arranged in the cavity, the other end of the double-headed piston body is positioned outside the cavity, and two ends of the cavity are respectively connected with a hydraulic unit;
The first clutch block comprises a first friction plate group, the second clutch block comprises a second friction plate group, the first friction plate group is positioned on one side of the other end of the double-head piston body, the second friction plate group is positioned on the other side of the other end of the double-head piston body, and the double-head piston body is used for driving one group of the first friction plate group or the second friction plate group to be combined and the other group to be separated;
The power motor is a direct current power motor.
2. A power take-off four speed transmission according to claim 1, wherein the second gear pair and the third gear pair are formed as the same pair of gears.
3. The four-speed transmission with power output according to claim 1, wherein a key groove is arranged on the shaft surface of the intermediate shaft, and the output end of the power motor is fixedly connected in the key groove.
4. The four-speed transmission with power output according to claim 1, wherein a plurality of intermediate shafts are arranged in an annular array around the central lines of the input shaft and the output shaft, the plurality of intermediate shafts have the same structure, and each intermediate shaft is connected with a power motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340690.4A CN111336222B (en) | 2019-12-23 | 2019-12-23 | Four-speed transmission with power output |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911340690.4A CN111336222B (en) | 2019-12-23 | 2019-12-23 | Four-speed transmission with power output |
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| CN111336222A CN111336222A (en) | 2020-06-26 |
| CN111336222B true CN111336222B (en) | 2025-06-17 |
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| CN112594333B (en) * | 2020-12-16 | 2022-02-08 | 深圳市羡鱼动力技术有限公司 | Integrated power distribution device of cooking robot |
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| CN110513468A (en) * | 2019-05-28 | 2019-11-29 | 无锡明恒混合动力技术有限公司 | A kind of axial double clutch for hybrid gearbox |
| CN211259506U (en) * | 2019-12-23 | 2020-08-14 | 福建中维动力科技股份有限公司 | Four-gear transmission with power output |
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| CH296104A (en) * | 1941-07-21 | 1954-01-31 | Gmbh J M Voith | Multi-speed change gear. |
| US6427549B1 (en) * | 2001-01-10 | 2002-08-06 | New Venture Gear, Inc. | Dual countershaft twin clutch automated transmission |
| DE102005043700A1 (en) * | 2005-09-14 | 2007-05-31 | Daimlerchrysler Ag | Schaltklauengetriebe and switching method for such |
| CN108343714A (en) * | 2018-02-02 | 2018-07-31 | 才亚民 | Automotive transmission and its control method |
| CN108426003A (en) * | 2018-05-21 | 2018-08-21 | 福州钻智汽车科技有限公司 | A kind of single control chip double clutch parallel shaft transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513468A (en) * | 2019-05-28 | 2019-11-29 | 无锡明恒混合动力技术有限公司 | A kind of axial double clutch for hybrid gearbox |
| CN211259506U (en) * | 2019-12-23 | 2020-08-14 | 福建中维动力科技股份有限公司 | Four-gear transmission with power output |
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