CN213685178U - Simple engine transmission system for vehicle - Google Patents
Simple engine transmission system for vehicle Download PDFInfo
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- CN213685178U CN213685178U CN202022444895.1U CN202022444895U CN213685178U CN 213685178 U CN213685178 U CN 213685178U CN 202022444895 U CN202022444895 U CN 202022444895U CN 213685178 U CN213685178 U CN 213685178U
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- gear
- transmission
- engine
- planet carrier
- driving shaft
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Abstract
The utility model discloses a simple engine transmission system for vehicles, which comprises an engine and two driving wheels, wherein the output shaft of the engine is connected with a sun gear transmission component through a transmission component, a pair of planetary gear sets are symmetrically fixed at the left and right ends of the sun gear transmission component, the internal teeth of an annular gear ring of the planetary gear sets are meshed with the planet gears of a planet carrier, and the external teeth are meshed with a connecting gear; the planet carrier is connected with a driving shaft in an axially separable way, and the driving shaft is connected with a driving wheel; the transmission device is connected with the driving shaft in an axially separable manner. The system greatly simplifies the structure of the existing engine transmission system, realizes the effect that the final transmission can be realized only by the cooperative work of a plurality of original sets of transmission equipment through one set of integral transmission system, reduces the production cost, improves the transmission efficiency, and also reduces the difficulty and the cost of daily maintenance.
Description
Technical Field
The utility model relates to an engine transmission system specifically says to a simple engine transmission system for vehicle.
Background
The conventional fuel engine motor vehicle transmission structure generally comprises a clutch, a synchronizer, a hydraulic torque converter, a gearbox, a differential mechanism, a transmission shaft and the like, and finally the power of the engine can be transmitted to a driving wheel to realize the running of the vehicle. The transmission structure is complex, low in transmission efficiency and high in cost, and meanwhile, the requirement for daily maintenance of the vehicle is high.
Therefore, it is a direction of research desired by those skilled in the art to develop a vehicle engine transmission system having a simple structure.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, the present invention is directed to: a simple vehicle engine transmission system is provided.
The technical solution of the utility model is that: a simple engine transmission system for a vehicle comprises an engine and two driving wheels, wherein an output shaft of the engine is connected with a sun gear transmission member through a transmission assembly, a pair of planetary gear sets are symmetrically fixed at the left end and the right end of the sun gear transmission member, each planetary gear set comprises an annular gear ring and a planet carrier, the annular gear ring is provided with inner teeth and outer teeth, the inner teeth of the annular gear ring are meshed with planet gears of the planet carrier, and the outer teeth of the annular gear ring are meshed with a connecting gear; the planet carrier is connected with a driving shaft in an axially separable way, and the driving shaft is connected with a driving wheel;
the transmission device is connected with the driving device and is used for controlling the transmission device to rotate or stop, the ring gear is provided with external teeth, the external teeth of the ring gear are meshed with the connecting gear, and the transmission device is connected with the driving shaft in an axially separable way;
the planet carrier is connected with a planet carrier brake, and the connecting gear is connected with a connecting gear brake.
Furthermore, the sun gear component comprises a central shaft, the left end and the right end of the central shaft are respectively provided with a sun gear, and the sun gear is fixed with the center of the annular gear ring.
Further, the transmission assembly comprises a first bevel gear and a second bevel gear which are meshed with each other, the first bevel gear is axially fixed on an output shaft of the engine, and the second bevel gear is axially fixed on the central shaft.
Further, the ring gear controlling the rotation of the transmission means is: when the rotating speed of the ring gear is lower than the idling speed of the engine, the ring gear does not drive the transmission device to rotate; when the ring gear speed exceeds the engine idle speed, the ring gear drives the transmission to rotate.
Further, the axially separable connection of the planet carrier with the driving shaft means that: a first movable pin for connecting the planet carrier is axially and slidably arranged on the driving shaft so as to control the locking or the separation of the driving shaft and the planet carrier.
Further, the end, far away from the annular gear ring, of the planet carrier is provided with a first clamping groove for clamping and fixing the first movable pin.
Further, the transmission device is connected with the driving shaft in an axially separable way, and the transmission device is connected with the driving shaft in an axially separable way by the following steps: and a second movable pin for connecting the transmission device is axially and slidably arranged on the driving shaft so as to control the driving shaft to be locked or separated with or from the transmission device.
Furthermore, the rotating device is provided with a second clamping groove for clamping and fixing the second movable pin.
Use the utility model provides a simple engine transmission system for vehicle, its beneficial effect is: the system has a simple structure, improves the transmission efficiency, reduces the production cost, and also reduces the difficulty and the cost of daily maintenance.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an installation schematic diagram of the first movable pin and the second movable pin of the present invention.
Shown in the figure: 1-engine, 1.1-output shaft, 2-drive wheel, 3-transmission assembly, 31-first bevel gear, 32-second bevel gear, 4-sun gear transmission member, 41-center shaft, 42-sun gear, 5-annular gear ring, 6-planet carrier, 7-planet gear, 8-connecting gear, 9-drive shaft, 10-transmission device, 11-annular gear, 12-planet carrier brake, 13-connecting gear brake, 14-first movable pin, 15-second movable pin, 16-first clamping groove, 17-second clamping groove.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:
as shown in fig. 1 and 2, a simple engine transmission system for a vehicle includes an engine 1 and two driving wheels 2, an output shaft 1.1 of the engine 1 is connected with a sun gear transmission member 4 through a transmission assembly 3, a pair of planetary gear sets are symmetrically fixed at left and right ends of the sun gear transmission member 4, the two planetary gear sets each include an annular ring gear 5 and a planet carrier 6, the annular ring gear 5 has inner teeth and outer teeth, the inner teeth are engaged with planet gears 7 of the planet carrier 6, and the outer teeth are engaged with a connecting gear 8; the two planet carriers 6 are respectively connected with a driving shaft 9 in an axially separable way, and the two driving shafts 9 are respectively connected with a driving wheel 2;
the transmission device comprises two sets of transmission devices 10 and two sets of ring gears 11 which are connected with the corresponding transmission devices 10 and are used for controlling the transmission devices 10 to rotate or stop, wherein the ring gears 11 are provided with external teeth, the external teeth are meshed with the connecting gear 8, and the transmission devices 10 are connected with the driving shaft 9 in an axially separable mode.
The two planet carriers 6 are both connected with a planet carrier brake 12, and the two connecting gears 8 are connected with a connecting gear brake 13. The planet carrier brake 12 and the connecting gear brake 13 are respectively used for implementing a braking function on the planet carrier 6 and the connecting gear 8, friction plates can be adopted for design, the planet carrier brake 12 and the connecting gear brake 13 are controlled to rub with the planet carrier 6 and the connecting gear 8 through an external control component (not shown), and the friction force can be adjusted to realize the control of the braking force.
The sun gear member 4 includes a central shaft 41, and a sun gear 42 is provided at each of left and right ends of the central shaft 41, and the sun gear 42 is fixed to the ring gear 5. The sun gear 42 rotates to rotate the ring gear 5.
The transmission assembly 3 comprises a first bevel gear 31 and a second bevel gear 32 which are meshed with each other, the first bevel gear 31 is axially fixed on the output shaft 1.1 of the engine 1, and the second bevel gear 32 is axially fixed on a central shaft 41. When the output shaft 1.1 of the engine 1 rotates, the first bevel gear 31 is driven to rotate, when the first bevel gear 31 rotates, the second bevel gear 32 is driven to rotate, and the second bevel gear 32 drives the central shaft 41 to rotate.
The control of the rotation of the transmission 10 by the ring gear 11 means that: the transmission device 10 is preferably a hydraulic transmission device 10, and when the rotating speed of the ring gear 11 is lower than the idling speed of the engine 1, the ring gear 11 does not drive the transmission device 10 to rotate; when the rotational speed of the ring gear 11 exceeds the idling speed of the engine 1, the ring gear 11 drives the transmission 10 to rotate.
As shown in fig. 2, the axially separable connection of the carrier 6 to the drive shaft 9 means: a first movable pin 14 for connecting the planet carrier 6 is axially slidably nested on the driving shaft 9 to control the locking or the separation of the driving shaft 9 and the planet carrier 6. The end of the planet carrier 6 remote from the ring gear 5 has a first engaging groove 16 for the first movable pin 14 to engage and fix. The first movable pin 14 has helical teeth (not shown), and the first engaging groove 16 has a tooth groove (not shown) therein in the same direction as the helical teeth for maintaining the locked state.
As shown in fig. 2, the axially separable connection of the transmission 10 to the drive shaft 9 means: a second movable pin 15 for connecting the transmission device 10 is axially slidably nested on the driving shaft 9 to control the locking or the separation of the driving shaft 9 and the transmission device 10. The rotating device is provided with a second clamping groove 17 for clamping and fixing the second movable pin 15. The second movable pin 15 has helical teeth (not shown), and the second engaging groove 17 has a tooth groove (not shown) therein in the same direction as the helical teeth for maintaining the locked state.
When the vehicle needs to move in the forward direction, the first movable pin 14 is pushed by an external mechanical device (not shown) to be embedded into the first clamping groove 16 of the planet carrier 6, and the first movable pin 14 and the planet carrier 6 are kept in a synchronous movement locking state. Since the first movable pin 14 is always rotationally locked with the driving shaft 9, the driving shaft 9 is driven to rotate in the forward direction when the planet carrier 6 rotates in the forward direction. The disengagement of the second movable pin 15 from the transmission 10 is now controlled by an external mechanical device (not shown).
When the vehicle needs to run in the reverse direction, the second movable pin 15 is pushed by an external mechanical device (not shown) to be embedded into the second clamping groove 17 of the transmission device 10, and the second movable pin 15 and the transmission device 10 are kept in a motion synchronization locking state. Since the second movable pin 15 and the driving shaft 9 are always rotationally locked synchronously, when the transmission device 10 rotates reversely, the driving shaft 9 is driven to rotate reversely. The separation of the first movable pin 14 from the carrier 6 is now controlled by an external mechanical device (not shown).
The working principle of the utility model is as follows:
when the vehicle is at rest at idle (engine 1 running), the carrier brake 12 is at maximum braking force and the locking carrier 6 is at rest. The connecting gear brake 13 is in a released state. The output shaft 1.1 of the engine 1 transmits power through the transmission assembly 3 to the sun gear member 4 and through the planet gears 7 ultimately drives the ring gear 5 into rotation.
When the vehicle is started forward, the carrier brake 12 releases the braking state, and the connecting gear brake 13 gradually increases the braking force. At this time, the output shaft 1.1 of the engine 1 drives the sun gear member 4 through the transmission assembly 3, and the sun gear member 4 drives the planet gears 7, so that the planet carrier 6 and the annular ring gear 5 rotate reversely at the same time through resistance distribution. When the carrier brake 12 is gradually increased in braking force, the reverse rotational speed of the ring gear 5 is reduced, and the forward rotational speed of the carrier 6 is increased. Since the planet carrier 6 directly drives the drive shaft 9 and the drive shaft 9 connects the two drive wheels 2, the vehicle starts to accelerate gradually when the planet carrier 6 starts to rotate in the forward direction.
When the vehicle slides, the braking force of the connecting gear brake 13 is released (the planet carrier brake 12 is in a brake release state), the driving wheel 2 drives the driving shaft 9 to rotate, the driving shaft 9 drives the planet carrier 6 to rotate, and the planet carrier 6 drives the annular gear ring 5 to rotate in the positive direction. At this time, the two sets of sun gears 42, the planet carrier 6 and the ring gear 5 all rotate in the forward direction.
When the vehicle is reversing, the planet carrier brake 12 exerts a certain braking force, keeping the planet carrier 6 movable when it is driven beyond a certain power, and the connecting gear brake 13 releases the brake. At the same time the first movable pin 14, which is connected to the planet carrier 6, is retracted away from the planet carrier 6 and the second movable pin 15 locks the gear 10. Because the power output of the output shaft 1.1 of the engine 1 is transmitted to the sun gear member 4, the sun gear member 4 drives the annular gear ring 5 to rotate reversely through the planet gear 7, the annular gear ring 5 drives the connecting gear 8 to rotate, and the connecting gear 8 drives the annular gear 11 to rotate. When the ring gear 11 rotates, hydraulic pressure is formed, and when the hydraulic pressure reaches a certain value, the transmission device 10 is driven to rotate. And since the second movable pin 15 remains locked to the transmission 10, at this time the transmission 10 will bring the driving shaft 9 to reverse rotation, and finally the driving wheel to reverse movement.
Differential function of vehicle drive wheels 2: when the two driving wheels 2 encounter different resistances during running, the resistances are fed back to the driving shaft 9 in the reverse direction and then fed back to the planet carrier 6 through the driving shaft 9, and at this time, the output shaft 1.1 of the engine 1 drives the central shaft 41 to rotate in the forward direction, and finally the resistances are fed back to the annular gear ring 5. And the moment balance formed between the connecting gear 8 connected with the annular gear ring 5 and the connecting gear brake 13 is broken, so that the running speeds of the annular gear ring 5 and the connecting gear 8 on different driving wheels 2 are different, and the differential function of the driving wheels 2 is realized. When the driving force resistance generated during reversing is different, the final resistance can be fed back to the planet carrier 6, so that the two planet carriers 6 realize different rotating speeds, and the differential function of the driving wheel 2 during reversing is finally realized.
It is to be understood that the foregoing is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, which is defined by the following claims and drawings.
Claims (6)
1. A simple engine transmission system for a vehicle, comprising an engine and two drive wheels, characterized in that: the output shaft of the engine is connected with a sun gear transmission member through a transmission assembly, a pair of planetary gear sets are symmetrically fixed at the left end and the right end of the sun gear transmission member, each planetary gear set comprises an annular gear ring and a planet carrier, each annular gear ring is provided with inner teeth and outer teeth, the inner teeth of each annular gear ring are meshed with the planet gears of the planet carrier, and the outer teeth of each annular gear ring are meshed with a connecting gear; the planet carrier is connected with a driving shaft in an axially separable way, and the driving shaft is connected with a driving wheel;
the transmission device is connected with the driving device and is used for controlling the transmission device to rotate or stop, the ring gear is provided with external teeth, the external teeth of the ring gear are meshed with the connecting gear, and the transmission device is connected with the driving shaft in an axially separable way;
the planet carrier is connected with a planet carrier brake, and the connecting gear is connected with a connecting gear brake.
2. A simple vehicular engine transmission system according to claim 1, characterized in that: the sun gear component comprises a central shaft, the left end and the right end of the central shaft are respectively provided with a sun gear, and the sun gear is fixed with the center of the annular gear ring.
3. A simple vehicular engine transmission system according to claim 2, characterized in that: the transmission assembly comprises a first bevel gear and a second bevel gear which are meshed with each other, the first bevel gear is axially fixed on an output shaft of the engine, and the second bevel gear is axially fixed on the central shaft.
4. A simple vehicular engine transmission system according to claim 1, characterized in that: the ring gear controls the transmission to rotate: when the rotating speed of the ring gear is lower than the idling speed of the engine, the ring gear does not drive the transmission device to rotate; when the ring gear speed exceeds the engine idle speed, the ring gear drives the transmission to rotate.
5. A simple vehicular engine transmission system according to claim 1, characterized in that: the planet carrier is connected with the driving shaft in an axially separable way and is characterized in that: a first movable pin for connecting the planet carrier is axially and slidably arranged on the driving shaft so as to control the locking or the separation of the driving shaft and the planet carrier.
6. A simple vehicular engine transmission system according to claim 1, characterized in that: the transmission device is connected with the driving shaft in an axially separable way, and the transmission device is characterized in that: and a second movable pin for connecting the transmission device is axially and slidably arranged on the driving shaft so as to control the driving shaft to be locked or separated with or from the transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022444895.1U CN213685178U (en) | 2020-10-28 | 2020-10-28 | Simple engine transmission system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022444895.1U CN213685178U (en) | 2020-10-28 | 2020-10-28 | Simple engine transmission system for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213685178U true CN213685178U (en) | 2021-07-13 |
Family
ID=76762210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022444895.1U Active CN213685178U (en) | 2020-10-28 | 2020-10-28 | Simple engine transmission system for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213685178U (en) |
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2020
- 2020-10-28 CN CN202022444895.1U patent/CN213685178U/en active Active
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