CN215634868U - Power system of automatic gearbox - Google Patents
Power system of automatic gearbox Download PDFInfo
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- CN215634868U CN215634868U CN202121533281.9U CN202121533281U CN215634868U CN 215634868 U CN215634868 U CN 215634868U CN 202121533281 U CN202121533281 U CN 202121533281U CN 215634868 U CN215634868 U CN 215634868U
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- torsional vibration
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- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 abstract description 11
- 230000002238 attenuated effect Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000001052 transient effect Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model provides an automatic gearbox power system which comprises an engine and a transmission, wherein the engine comprises a flywheel and a flywheel shell, the flywheel is rotationally connected with the flywheel shell, the automatic gearbox power system also comprises a torsional vibration damper arranged between the engine and the transmission, the torsional vibration damper comprises a disc body, a plurality of vibration damping springs are uniformly arranged on the disc body along the circumferential direction, the disc body and the flywheel are coaxially arranged and are fixedly connected with the flywheel, the vibration damping springs are abutted against the flywheel, and the torsional vibration damper is directly or separately connected with the transmission. The torsional vibration damper is arranged between the engine and the transmission, and compared with an elastic flexible disk, the torsional vibration damper is convenient to install, reduces the torsional rigidity of a combined part of a crankshaft of the engine and a transmission system, and coordinates the torsional vibration natural frequency of the transmission system; the torsional damping of the transmission system is increased, the torsional resonance response amplitude is restrained, and transient torsional vibration generated by impact can be attenuated; attenuating noise and vibration of the power system at low speed; when the vehicle is started, the impact load energy is relaxed, and the smoothness is good.
Description
Technical Field
The utility model relates to the technical field of vehicle power systems, in particular to an automatic gearbox power system.
Background
The engine of the power system is connected with the transmission in a direct connection mode and a split connection mode. The following disadvantages mainly exist:
(1) as shown in fig. 1, the engine is directly connected to the transmission 1 (non-splined input shaft), the connection between the engine and the transmission 1 is an elastic flexible disk 5, one end of the elastic flexible disk 5 is fixedly connected to a flywheel 3 on the engine, and the other end is connected to the transmission 1 through a transmission adapter 4. The elastic flexible disk 5 is formed by overlapping a plurality of layers of elastic steel plates, and has high rigidity and poor torsional vibration resistance. The installation is difficult, and the front end of the flywheel shell 2 and the flywheel 3 need to be provided with the fabrication holes 11.
(2) As shown in fig. 2, the engine is connected with the transmission 1 in a split manner, the main parts are an elastic coupling 6 and an output shaft 7, the output shaft 7 is rotatably connected with the engine housing through a bearing 12, the elastic coupling 6 is arranged in the engine housing and fixedly connected with the flywheel 3, the elastic coupling 6 and the output shaft 7 are connected through a spline and transmit torque, and one end of the output shaft 7 extending out of the engine housing is connected with the transmission 1; the elastic coupling 6 is expensive, and the coupling has various forms, so that the flywheels 3 connected with the coupling are various.
(3) The hydraulic torsional damper is adopted as a transition connecting device, so that the structure is complex and the price is high.
(4) The flywheel and the flywheel housing which are matched with the common manual gear speed change have poor universality, and are inconvenient for warehouse management.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a power system of an automatic gearbox, aiming at overcoming the defects of poor torsional vibration resistance and high price of a connecting piece between an engine and a transmission in the prior art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an automatic transmission driving system, includes engine and derailleur, the engine includes flywheel and flywheel shell, the flywheel is located in the flywheel shell with the flywheel shell rotates to be connected, still including locating the torsional damper between engine and the derailleur, torsional damper includes the disk body, evenly be equipped with a plurality of damping springs along circumference on the disk body, the disk body with the coaxial setting of flywheel and with flywheel fixed connection, damping spring supports and locates on the flywheel, torsional damper with the direct or split type connection of derailleur.
A damping spring on the torsional damper is attached to the flywheel to coordinate the torsional vibration natural frequency of the transmission system; the torsional damping of the transmission system can be increased, the torsional resonance response amplitude is inhibited, and transient torsional vibration generated by impact can be attenuated; attenuating noise and vibration of the power system at low speed; when the vehicle is started, the impact load energy is relaxed, and the smoothness is good.
Furthermore, in order to connect the torsional vibration damper with an engine, a plurality of mounting holes are formed in the circumferential direction of the disc body, and the bolts penetrate through the mounting holes and are fixedly connected with a flywheel on the engine.
Furthermore, in order to realize direct connection between the transmission and the torsional vibration damper, a spline hoop is axially arranged on the disc body, and a spline input shaft connected with the spline hoop in an inserted manner is arranged on the transmission.
Furthermore, in order to realize the split connection between the transmission and the torsional vibration damper, a spline hoop is axially arranged on the disc body, an output coupler is arranged on one side, close to the transmission, of the torsional vibration damper, the output coupler comprises an output shaft and a sleeve, the sleeve is fixedly connected with the flywheel shell, a plurality of groups of bearings are arranged between the output shaft and the sleeve, a spline part matched with the spline hoop is arranged at one end, close to the disc body, of the output shaft, and one end, far away from the disc body, of the output shaft is fixedly connected with the transmission.
The utility model has the beneficial effects that: according to the power system of the automatic gearbox, the torsional damper is arranged between the engine and the speed changer, compared with an elastic flexible disk, the power system is convenient to install, the torsional rigidity of a combined part of the crankshaft of the engine and a transmission system is reduced, and the torsional vibration natural frequency of the transmission system is coordinated; the torsional damping of the transmission system is increased, the torsional resonance response amplitude is restrained, and transient torsional vibration generated by impact can be attenuated; attenuating noise and vibration of the power system at low speed; impact load energy is relieved when the vehicle is started, and smoothness is good; compared with an elastic coupling, the shaft coupling is low in price and strong in environmental change resistance; compared with a hydraulic torsion damper, the hydraulic torsion damper is low in price.
Drawings
The utility model is further illustrated by the following figures and examples.
FIG. 1 is a schematic illustration of a prior art engine directly coupled to a transmission;
FIG. 2 is a schematic illustration of a split engine and transmission connection according to the prior art;
FIG. 3 is a front view of the torsional damper;
FIG. 4 is a side view of the torsional vibration damper;
FIG. 5 is an assembly view of the first embodiment;
FIG. 6 is an exploded view of the first embodiment;
FIG. 7 is an assembly view of the second embodiment;
fig. 8 is a schematic view of the structure of the output shaft.
In the figure: 1. the transmission comprises a transmission body 101, an input shaft 2, a flywheel shell 3, a flywheel 4, a transmission adapter 5, an elastic flexible disc 6, an elastic coupling 7, an output shaft 701, a spline part 8, a torsion damper 801, a disc body 802, a damping spring 803, a spline hoop 9, a bolt 11, a fabrication hole 12, a bearing 13 and a sleeve.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
The first embodiment is as follows:
as shown in fig. 3-6, the power system of the automatic transmission according to the present invention includes an engine and a transmission 1, wherein the engine includes a flywheel 3 and a flywheel housing 2, the flywheel 3 is disposed in the flywheel housing 2 and rotatably connected to the flywheel housing 2, the power system further includes a torsional vibration damper 8 disposed between the engine and the transmission 1, the torsional vibration damper 8 is formed by modifying a torsional vibration damper of a friction plate of a dry disk friction clutch of a Manual Transmission (MT), the torsional vibration damper 8 includes a disk 801, a plurality of damping springs 802 are uniformly disposed on the disk 801 along a circumferential direction, the disk 801 is disposed coaxially with the flywheel 3 and fixedly connected to the flywheel 3, the damping springs 802 are abutted to the flywheel 3, and the torsional vibration damper 8 is directly or separately connected to the transmission 1.
A plurality of mounting holes are formed in the circumferential direction of the disc body 801, and the bolts 9 penetrate through the mounting holes to be fixedly connected with the flywheel 3 on the engine.
The disc body 801 is provided with a spline hoop 803 along the axial direction, and the transmission 1 is provided with a spline input shaft 101 in inserted connection with the spline hoop 803.
Example two:
as shown in fig. 7 and 8, the difference between the present embodiment and the first embodiment is that a spline hoop 803 is axially disposed on the disc 801, an output coupling is disposed on one side of the torsional vibration damper 8 close to the transmission 1, the output coupling includes an output shaft 7 and a sleeve 13, the sleeve 13 is fixedly connected to the flywheel housing 2, a plurality of sets of bearings 12 are disposed between the output shaft 7 and the sleeve 13, a spline portion 701 matched with the spline hoop 803 is disposed at one end of the output shaft 7 close to the disc 801, and one end of the output shaft 7 away from the disc 801 is fixedly connected to the transmission 1.
Directions and references (e.g., up, down, left, right, etc.) may be used in the present disclosure only to aid in the description of features in the figures. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides an automatic gearbox driving system, includes engine and derailleur (1), the engine includes flywheel (3) and flywheel shell (2), flywheel (3) are located in flywheel shell (2) with flywheel shell (2) rotate to be connected its characterized in that: the automobile engine is characterized by further comprising a torsional vibration damper (8) arranged between the engine and the transmission (1), wherein the torsional vibration damper (8) comprises a disc body (801), a plurality of vibration reduction springs (802) are uniformly arranged on the disc body (801) along the circumferential direction, the disc body (801) and the flywheel (3) are coaxially arranged and fixedly connected with the flywheel (3), the vibration reduction springs (802) are abutted to the flywheel (3), and the torsional vibration damper (8) is directly or separately connected with the transmission (1).
2. The automatic transmission powertrain of claim 1, wherein: the disc body (801) is circumferentially provided with a plurality of mounting holes, and bolts (9) penetrate through the mounting holes and are fixedly connected with a flywheel (3) on the engine.
3. An automatic transmission power system as claimed in claim 2, wherein: the disc body (801) is provided with a spline hoop (803) along the axial direction, and the transmission (1) is provided with a spline input shaft (101) connected with the spline hoop (803) in an inserting mode.
4. An automatic transmission power system as claimed in claim 2, wherein: disk body (801) are equipped with spline hoop (803) along the axial, one side that torsional damper (8) are close to derailleur (1) is equipped with the output shaft coupling, the output shaft coupling includes output shaft (7) and sleeve (13), sleeve (13) and flywheel shell (2) fixed connection, be equipped with a plurality of groups bearing (12) between output shaft (7) and sleeve (13), the one end that output shaft (7) are close to disk body (801) is equipped with and spline hoop (803) complex spline portion (701), the one end that disk body (801) were kept away from in output shaft (7) with derailleur (1) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121533281.9U CN215634868U (en) | 2021-07-06 | 2021-07-06 | Power system of automatic gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121533281.9U CN215634868U (en) | 2021-07-06 | 2021-07-06 | Power system of automatic gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634868U true CN215634868U (en) | 2022-01-25 |
Family
ID=79948301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121533281.9U Active CN215634868U (en) | 2021-07-06 | 2021-07-06 | Power system of automatic gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030986A (en) * | 2022-05-13 | 2022-09-09 | 安徽工程大学 | Piezoelectric active flywheel for suppressing torsional vibration of vehicle transmission shaft and control method |
-
2021
- 2021-07-06 CN CN202121533281.9U patent/CN215634868U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030986A (en) * | 2022-05-13 | 2022-09-09 | 安徽工程大学 | Piezoelectric active flywheel for suppressing torsional vibration of vehicle transmission shaft and control method |
| CN115030986B (en) * | 2022-05-13 | 2023-04-18 | 安徽工程大学 | Piezoelectric active flywheel for suppressing torsional vibration of vehicle transmission shaft and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240722 Address after: No. 588 Yancheng South Road, Wujin High tech Industrial Development Zone, Changzhou City, Jiangsu Province, China 213000 Patentee after: LIUGONG CHANGZHOU MACHINERY Co.,Ltd. Country or region after: China Address before: 213168 588 Yancheng South Road, Wujin hi tech Industrial Development Zone, Changzhou, Jiangsu Patentee before: Liugong (Changzhou) Mining Machinery Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |