Power output structure of engine special for hybrid power

Abstract

The utility model relates to the technical field of internal combustion engines, in particular to a special hybrid power engine power output structure which comprises a flywheel casing, a gearbox front casing and a flywheel, the flywheel casing is detachably connected with the gearbox front casing, and the flywheel is arranged between the flywheel casing and the gearbox front casing. A torsion damper, a crankshaft, an oil seal bearing frame and an oil seal are further arranged between the flywheel shell and the gearbox front shell. The crankshaft is located on the side, away from the gearbox front shell, of the flywheel. The torsion damper is arranged on the other side of the flywheel; the oil seal bearing frame and the oil seal are both arranged on the gearbox front shell; the planet carrier shaft is inserted into the gearbox front shell, and the flywheel shell, the gearbox front shell, the flywheel, the torsion damper, the crankshaft, the planet carrier shaft, the oil seal bearing frame, the oil seal and other structures are integrated, so that the cost of the whole vehicle and the number of parts are obviously reduced, arrangement is more compact, and the damping effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a power output structure of a hybrid power-specific engine. Background Art

[0002] An engine is a mechanical device that can convert the chemical energy of combustible fuel into mechanical energy and generate power. Among them, the internal combustion engine is the most common engine and is widely used in automobiles, motorcycles, airplanes, ships, and other non-road power equipment.

[0003] With the development of science and technology, some cars use the technology of hybrid drive of fuel and electricity, thus hybrid cars are produced. Most of these hybrid cars are driven by both electric motors and engines.

[0004] The power of a traditional diesel engine is transmitted to the gearbox through a clutch assembly, which consists of a friction plate and a pressure plate, which is costly and takes up a lot of space. When the driver steps on the clutch pedal, the friction plate separates from the flywheel, and the engine power is not transmitted to the gearbox. The power-split hybrid gearbox is mainly composed of two motors and a planetary gear mechanism, and is an e-CVT gearbox that does not require a clutch. Utility Model Content

[0005] In view of the above problems, the utility model provides a power output structure of a hybrid power-specific engine.

[0006] The technical solution adopted is a hybrid engine power output structure, including a flywheel housing, a gearbox front housing and a flywheel, wherein the flywheel housing and the gearbox front housing are detachably connected, and the flywheel is arranged between the flywheel housing and the gearbox front housing, wherein a torsional vibration damper, a crankshaft, an oil seal bearing frame and an oil seal are also arranged between the flywheel housing and the gearbox front housing;

[0007] The crankshaft is located on the side of the flywheel away from the front housing of the gearbox;

[0008] The torsional vibration damper is arranged on the other side of the flywheel;

[0009] The oil seal bearing frame and the oil seal are both arranged on the front housing of the gearbox;

[0010] A planet carrier shaft is inserted into the front housing of the gearbox.

[0011] Optionally, a flywheel locating pin and a flywheel bolt are provided on the flywheel, and the flywheel is detachably connected to the crankshaft via the flywheel locating pin and the flywheel bolt.

[0012] Optionally, a torsional vibration damper locating pin and a torsional vibration damper bolt are provided on the torsional vibration damper, and the torsional vibration damper is detachably connected to the flywheel via the torsional vibration damper locating pin and the torsional vibration damper bolt.

[0013] Optionally, an involute spline sleeve is integrated at the center of the torsional vibration damper, and a spline shaft adapted to the spline sleeve is provided at the end of the planetary carrier shaft.

[0014] Optionally, the planet carrier shaft passes through the oil seal and the oil seal bearing frame, and the flywheel and the torsional vibration damper are sealed in a closed space formed by the flywheel housing, the front housing of the gearbox, the oil seal bearing frame and the oil seal.

[0015] Optionally, a gearbox front housing locating pin and a gearbox front housing bolt are provided on the side of the gearbox front housing facing the flywheel housing, and the gearbox front housing is detachably connected to the flywheel housing via the gearbox front housing locating pin and the gearbox front housing bolt.

[0016] The benefits of the utility model are:

[0017] Based on the characteristics of hybrid vehicles, the flywheel housing, gearbox front housing, flywheel, torsional vibration damper, crankshaft, planetary carrier shaft, oil seal bearing frame and oil seal are integrated, which significantly reduces the cost of the whole vehicle and the number of parts, makes the layout more compact, and improves the vibration reduction effect. It solves the problem that the power output structure of the existing traditional diesel engine is relatively loose in structure, and the torque transmission and vibration reduction effects are not ideal when it is directly used in hybrid vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the power output structure of a hybrid power-specific engine;

[0019] Figure 2 for Figure 1 Schematic diagram of the AA cross-section structure.

[0020] The figure marks are as follows: 1 is a flywheel bolt, 2 is a crankshaft, 3 is a flywheel locating pin, 4 is a flywheel housing, 5 is a torsional vibration damper bolt, 6 is a gearbox front housing locating pin, 7 is a gearbox front housing, 8 is an oil seal bearing frame, 9 is an oil seal, 10 is a planetary carrier shaft, 11 is a torsional vibration damper, 12 is a torsional vibration damper locating pin, 13 is a gearbox front housing bolt, and 14 is a flywheel. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0023] like Figure 1 and Figure 2 As shown, a hybrid engine power output structure comprises a flywheel housing 4, a gearbox front housing 7 and a flywheel 14, wherein the flywheel housing 4 and the gearbox front housing 7 are detachably connected, and the flywheel 14 is arranged between the flywheel housing 4 and the gearbox front housing 7, and is characterized in that a torsional vibration damper 11, a crankshaft 2, an oil seal bearing frame 8 and an oil seal 9 are also arranged between the flywheel housing 4 and the gearbox front housing 7;

[0024] The crankshaft 2 is located on the side of the flywheel 14 away from the front housing 7 of the gearbox;

[0025] The torsional vibration damper 11 is arranged on the other side of the flywheel 14;

[0026] The oil seal bearing frame 8 and the oil seal 9 are both arranged on the front housing 7 of the gearbox;

[0027] A planet carrier shaft 10 is inserted into the gearbox front housing 7 .

[0028] The purpose of this design is to integrate the flywheel housing, gearbox front housing, flywheel, torsional vibration damper, crankshaft, planetary carrier shaft, oil seal bearing frame and oil seal structures based on the characteristics of hybrid vehicles, so that the cost of the whole vehicle and the number of parts are significantly reduced, the layout is more compact, and the vibration reduction effect is better. It solves the problem that the power output structure of the existing traditional diesel engine is relatively loose in structure, and the torque transmission and vibration reduction effects are not ideal when it is directly used in hybrid vehicles.

[0029] Meanwhile, a flywheel locating pin 3 and a flywheel bolt 1 are provided on the flywheel 14 , and the flywheel 14 is detachably connected to the crankshaft 2 via the flywheel locating pin 3 and the flywheel bolt 1 .

[0030] Furthermore, the torsional vibration damper 11 is provided with a torsional vibration damper positioning pin 12 and a torsional vibration damper bolt 5 , and the torsional vibration damper 11 is detachably connected to the flywheel 14 via the torsional vibration damper positioning pin 12 and the torsional vibration damper bolt 5 .

[0031] In actual use, the torsion vibration damper 11 is fixed on the flywheel 14 through three torsion vibration damper locating pins 12 and six M8X20 torsion vibration damper bolts 5 .

[0032] Furthermore, an involute spline sleeve is integrated at the center of the torsional vibration damper 11, and a spline shaft adapted to the spline sleeve is provided at the end of the planet carrier shaft 10.

[0033] The purpose of this design is to facilitate the transmission of torque through the cooperation of the spline shaft and the spline sleeve.

[0034] In this embodiment, the planet carrier shaft 10 passes through the oil seal 9 and the oil seal bearing frame 8, and the flywheel 14 and the torsional vibration damper 11 are sealed in a closed space formed by the flywheel housing 4, the gearbox front housing 7, the oil seal bearing frame 8 and the oil seal 9.

[0035] The purpose of such design is to protect the flywheel and the torsional vibration damper through the closed space formed by the flywheel housing 4, the gearbox front housing 7, the oil seal bearing frame 8 and the oil seal 9, and prevent pollutants such as rainwater and sludge from entering.

[0036] In this embodiment, a gearbox front housing locating pin 6 and a gearbox front housing bolt 13 are provided on the side of the gearbox front housing 7 facing the flywheel housing 4, and the gearbox front housing 7 is detachably connected to the flywheel housing 4 through the gearbox front housing locating pin 6 and the gearbox front housing bolt 13.

[0037] It should be pointed out that in the engine power output structure provided in this embodiment, the power of the engine is transmitted to the gearbox through the torsional vibration damper, and the power of the gearbox can also start the engine through the planetary carrier shaft.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hybrid engine power output structure, comprising a flywheel housing (4), a gearbox front housing (7) and a flywheel (14), wherein the flywheel housing (4) and the gearbox front housing (7) are detachably connected, and the flywheel (14) is arranged between the flywheel housing (4) and the gearbox front housing (7), characterized in that: A torsional vibration damper (11), a crankshaft (2), an oil seal bearing frame (8) and an oil seal (9) are also provided between the flywheel housing (4) and the gearbox front housing (7); The crankshaft (2) is located on a side of the flywheel (14) away from the front housing (7) of the gearbox; The torsional vibration damper (11) is arranged on the other side of the flywheel (14); The oil seal bearing frame (8) and the oil seal (9) are both arranged on the front housing (7) of the gearbox; A planet carrier shaft (10) is inserted into the gearbox front housing (7).

2. A hybrid power engine power output structure according to claim 1, characterized in that: The flywheel (14) is provided with a flywheel positioning pin (3) and a flywheel bolt (1), and the flywheel (14) is detachably connected to the crankshaft (2) via the flywheel positioning pin (3) and the flywheel bolt (1).

3. A hybrid power engine power output structure according to claim 1, characterized in that: The torsional vibration damper (11) is provided with a torsional vibration damper positioning pin (12) and a torsional vibration damper bolt (5), and the torsional vibration damper (11) is detachably connected to the flywheel (14) via the torsional vibration damper positioning pin (12) and the torsional vibration damper bolt (5).

4. A hybrid power engine power output structure according to claim 3, characterized in that: An involute spline sleeve is integrated at the center of the torsional vibration damper (11), and a spline shaft adapted to the spline sleeve is provided at the end of the planet carrier shaft (10).

5. The hybrid power engine power output structure according to claim 1, characterized in that: The planet carrier shaft (10) passes through the oil seal (9) and the oil seal bearing frame (8), and the flywheel (14) and the torsional vibration damper (11) are sealed in a closed space formed by the flywheel housing (4), the gearbox front housing (7), the oil seal bearing frame (8) and the oil seal (9).

6. A hybrid power engine power output structure according to claim 1, characterized in that: A gearbox front housing locating pin (6) and a gearbox front housing bolt (13) are provided on a side of the gearbox front housing (7) facing the flywheel housing (4), and the gearbox front housing (7) is detachably connected to the flywheel housing (4) via the gearbox front housing locating pin (6) and the gearbox front housing bolt (13).

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