Separated transmission engine arrangement structure

Abstract

The utility model relates to a separated transmission type engine arrangement structure. The separated transmission type engine arrangement structure comprises a crankshaft belt wheel, a generator set and an engine. The crankshaft belt wheel is connected with the engine for transmission; the crankshaft belt wheel is provided with at least two coaxial rims, the wheel diameters of the different rims of the crankshaft belt wheel are different, and the wheel diameters are matched with output torque. The generator set comprises a generator and a generator belt wheel, and the generator and the generator belt wheel are in transmission through one rim of a crankshaft belt wheel. And other engine parts are in transmission connection through other rims of the crankshaft belt wheel. Therefore, on one hand, the driving belts of other engine parts and the driving belt of the generator are separately arranged, and the situation that the whole transmission system breaks down due to the fact that the pressure of a single driving belt is too large can be effectively avoided; and on the other hand, transmission can be carried out through the rims with different wheel diameters according to the torque requirements of all engine components.

Description

Technical Field

[0001] This application relates to the technical field of engine structures, and particularly to an engine layout structure with a split drive. Background Art

[0002] In a fuel engine layout structure, a crankshaft flywheel group is provided. The engine drives the operation of an air conditioner compressor, a water pump, a generator, and a radiator fan through a crankshaft pulley and a belt.

[0003] In a traditional engine, the radiator fan is directly driven by the crankshaft pulley, and the power consumption of the radiator fan is about 30 kW. The belt also drives other structures such as the generator, resulting in the radiator fan being unable to adjust its speed according to the actual heat dissipation requirements. Therefore, the power consumption of the radiator fan is relatively high, and at the same time, the crankshaft flywheel group drives too many components, resulting in low power utilization of the engine.

[0004] Therefore, improving the electrification rate of the engine is an important indicator in current engine design. For example, an electromagnetic radiator fan can be used. The electronic control unit (ECU) can automatically adjust the speed of the radiator fan according to the actual temperature of the engine.

[0005] As the electrification rate increases, the power generation of the engine also needs to be improved. Currently, a high-power single generator or a dual generator can be used for power generation in the engine belt drive system.

[0006] In the existing engine belt drive system, because the pressure it bears increases, the failure rate of the drive belt becomes higher, which in turn causes the generator, water pump, and air conditioner compressor to stop working simultaneously.

[0007] Therefore, in order to avoid the failure of the single belt drive system resulting in the inability of the driven components to work, this application provides an engine layout structure with a split drive. Utility Model Content

[0008] To overcome the problems in the related art, this application provides an engine layout structure with a split drive, including: a crankshaft pulley, a generator set, and an engine;

[0009] The crankshaft pulley is connected to the engine for transmission;

[0010] The crankshaft pulley is provided with at least two coaxial rims, and the rim diameters of the respective rims of the crankshaft pulley are set according to the output torque;

[0011] The generator set includes a generator and a generator pulley;

[0012] One of the rims of the crankshaft pulley is drivingly connected to the generator pulley in the same plane through a generator drive belt, and the other rims of the crankshaft pulley are used to drive other engine components.

[0013] In one embodiment, the crankshaft pulley is provided with three coaxial rims; the rim diameters of each of the three coaxial rims increase step by step, wherein the diameter of the first rim is the smallest and is arranged on the outermost side of the crankshaft pulley; the diameter of the third rim is the largest and is arranged on the innermost side of the crankshaft pulley; the diameter of the second rim is between the diameter of the first rim and the diameter of the third rim and is clamped between the first rim and the third rim.

[0014] In one embodiment, the generator set includes a first generator, a second generator, a first generator pulley and a second generator pulley; the second rim of the crankshaft pulley is drivingly connected to the first generator pulley and the second generator pulley through a generator drive belt.

[0015] In one embodiment, it further includes an idler pulley and a first tension pulley; the first tension pulley and the idler pulley abut against the generator drive belt.

[0016] In one embodiment, it further includes a compressor pulley and a compressor drive belt; the first rim of the crankshaft pulley is drivingly connected to the compressor pulley through the compressor drive belt.

[0017] In one embodiment, it further includes a water pump pulley and a water pump drive belt; the third rim of the crankshaft pulley is drivingly connected to the water pump pulley through the water pump drive belt.

[0018] In one embodiment, it further includes a second tension pulley; the second tension pulley abuts against the water pump drive belt.

[0019] In one embodiment, it further includes a cooling fan; the cooling fan is provided with a drive motor and is powered by the generator set.

[0020] In one embodiment, it further includes a silicone oil shock absorber.

[0021] The technical solution provided by this application may include the following beneficial effects:

[0022] In this application, the crankshaft pulley is provided with at least two coaxial rims with different rim diameters. The torques output by the rims with different rim diameters are adapted to the engine components to be driven. The generator drive belt is connected to one of the rims and the generator pulley for independent transmission, and the remaining rims are used to drive other engine components. The crankshaft pulley of this application with rims of multiple rim diameters can adapt to the torque requirements of engine components. At the same time, the generator is driven by a single rim and the generator drive belt, which can effectively avoid the failure of the entire transmission system due to excessive drive belt pressure.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present application. Description of the Drawings

[0024] By describing the exemplary embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present application will become more apparent. Among them, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0025] Figure 1 3D structural schematic diagram of the engine layout structure shown in the embodiment of the present application;

[0026] Figure 2 Partial mechanism schematic diagram of the engine layout structure shown in the embodiment of the present application;

[0027] Explanation of the reference numerals in the drawings: crankshaft pulley 3, first rim 31, second rim 32, third rim 33, generator set 2, generator 21, generator pulley 22, first tensioner pulley 23, idler pulley 24, first generator 210, second generator 211, first generator pulley 220, second generator pulley 221, engine 1, compressor pulley 41, compressor drive belt 42, water pump pulley 51, water pump drive belt 52, second tensioner pulley 53, silicone oil damper 6. Detailed Embodiments

[0028] The preferred embodiments of the present application will be described in more detail below with reference to the drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to convey the scope of the present application fully to those skilled in the art.

[0029] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the", and "said" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0031] Embodiment 1

[0032] In the existing single - belt drive system of the engine, because the pressure it bears becomes larger and the failure rate of the drive belt becomes higher, it further causes the generator, water pump, and air - conditioning compressor to stop working simultaneously.

[0033] Therefore, in order to avoid the failure of the single - belt drive system resulting in the inoperability of the driven components, the embodiment of this application provides an engine layout structure with a split drive, as Figure 1 shown, including: a crankshaft pulley 3, a generator set 2, and an engine 1.

[0034] The crankshaft pulley 3 is provided with at least two coaxial rims with different diameters, and the diameter of the outer rim of the crankshaft pulley 3 is larger than that of the inner rim.

[0035] Figure 2 It is a partial structural schematic diagram of the engine layout structure shown in the embodiment of this application. Figure 2 It shows the wheel - set drive structure therein.

[0036] Specifically, the generator set 2 includes a generator 21 and a generator pulley 22. One of the rims of the crankshaft pulley 3 and the generator pulley 22 are drivingly connected in the same plane through a drive belt.

[0037] Specifically, the other rims of the crankshaft pulley 3 are connected to other engine components through drive belts. The other engine components further include: an air - conditioning compressor 43 and a water pump 54.

[0038] Correspondingly, as Figure 2 shown, the engine layout structure is provided with a compressor pulley 41 and a water - pump pulley 51. The drive belts include a compressor drive belt 42, a water - pump drive belt 52, and a generator drive belt 25.

[0039] Therefore, in the embodiment of this application, the generator drive belt 25 abuts against one of the rims of the crankshaft pulley 3. The water - pump drive belt 52 and the compressor drive belt 42 abut against the other rims of the crankshaft pulley 3.

[0040] It is understandable that the water pump 54 and the air-conditioning compressor 43 can be driven by the same drive belt, or can be separately driven by the water pump drive belt 52 and the compressor drive belt 42.

[0041] In the embodiment of the present application, the crankshaft pulley 3 is provided with at least two coaxial flanges with different diameters. The torques output by the flanges with different diameters are adapted to the engine components to be driven. The generator drive belt is connected to one of the flanges and the generator pulley for separate drive, and the remaining flanges are used to drive other engine components. The crankshaft pulley of the present application is provided with flanges of multiple diameters, which can adapt to the torque requirements of engine components. At the same time, the generator is driven by a separate flange and a generator drive belt, which can effectively avoid the failure of the entire drive system due to excessive drive belt pressure.

[0042] Embodiment Two

[0043] Based on Embodiment One, in order to clearly describe a split drive engine layout structure shown in Embodiment One.

[0044] The embodiment of the present application further provides a split drive engine layout structure, as Figure 1 shown, including: a crankshaft pulley 3, a generator set 2, and an engine 1.

[0045] The crankshaft pulley 3 is connected to the engine 1 for drive; the crankshaft pulley 3 is provided with at least two coaxial flanges with different diameters, and the diameter of the outer flange of the crankshaft pulley 3 is larger than that of the inner flange.

[0046] Specifically, the crankshaft pulley 3 is provided with three coaxial flanges. The diameter of the outermost flange of the crankshaft pulley 3 is the smallest, which is the first flange 31. The diameter of the innermost flange is the largest, which is the third flange 33. The diameter of the middle flange is between the outermost flange and the innermost flange, which is the second flange 32.

[0047] The same as Embodiment One, as Figure 2 shown, the engine layout structure further includes an air-conditioning compressor 43 and a water pump 54.

[0048] Correspondingly, the generator set 2 includes a generator 21 and a generator pulley 22, the air-conditioning compressor includes a compressor pulley 41, and the water pump includes a water pump pulley 51. The drive belts include a compressor drive belt 42, a water pump drive belt 52, and a generator drive belt 25.

[0049] Furthermore, the compressor pulley 41, the compressor drive belt 42, and the first flange 31 of the crankshaft pulley 3 are in driving connection in the same plane.

[0050] Further, the generator pulley 22, the generator drive belt 25, and the second rim 32 of the crankshaft pulley 3 are drivingly connected in the same plane.

[0051] Further, the water pump pulley 51, the water pump drive belt 52, and the third rim 33 of the crankshaft pulley 3 are drivingly connected in the same plane.

[0052] Due to the different torque requirements and speed requirements of the air conditioner compressor 43, the water pump 54, and the generator 22, the crankshaft pulley 3 in the embodiment of the present application is provided with a three-rim structure to adapt to the requirements of different engine components.

[0053] Among them, the first rim 31 with the smallest wheel diameter has the smallest torque and the fastest speed, and the first rim 31 is used to drive the air conditioner compressor. The second rim 32 is used to drive the generator set 2. The third rim 33 has the largest torque and is used to drive the water pump pulley 51.

[0054] Further, the generator set 2 is a dual-generator structure.

[0055] Specifically, the generator set 2 includes a first generator 210, a second generator 211, a first generator pulley 220, and a second generator pulley 221. The second rim 32 of the crankshaft pulley 3 is drivingly connected to the first generator pulley 220 and the second generator pulley 221 through the generator drive belt.

[0056] The engine layout structure further includes: an idler pulley 24 and a first tensioner pulley 23. The first tensioner pulley 23 and the idler pulley 24 abut against the generator drive belt 25.

[0057] Specifically, the second rim 32 of the crankshaft pulley 3, the first generator pulley 220, the second generator pulley 221, the idler pulley 24, and the first tensioner pulley 23 are drivingly connected in the same plane through the generator drive belt 25.

[0058] Further, it further includes a second tensioner pulley 53 and a silicone oil damper 6. Specifically, the second tensioner pulley 53 abuts against the water pump drive belt 52. The silicone oil damper 6 is used for vibration damping.

[0059] In the embodiment of the present application, an electromagnetic cooling fan is used to cool the engine. The cooling fan is provided with a drive motor, and the cooling fan is powered by the generator set 2.

[0060] In the traditional engine layout structure, the cooling fan uses mechanical transmission and cannot adjust the speed according to the cooling demand. The cooling fan with mechanical transmission consumes the most power, which can account for up to 10% of the engine output power, resulting in ineffective work.

[0061] In the engine layout structure of the embodiment of the present application, the cooling fan is powered by the generator set 2, and the rotation speed is intelligently adjusted by the vehicle central control, which can effectively improve the utilization rate of the engine output power. At the same time, the generator set of the embodiment of the present application is provided with two generators. Compared with the existing single large-power generator, on the one hand, it can ensure the power demand of the cooling fan, on the other hand, the small-power generator is easy to install, and on the third hand, when a single generator fails, the other generator can ensure the normal operation of the engine electrical components.

[0062] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment related to the method, and will not be elaborated here.

[0063] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments.

Claims

1. A split transmission engine arrangement structure, characterized in that: include: A crankshaft pulley (3), a generator set (2) and an engine (1); The crankshaft pulley (3) is connected to the engine for transmission; The crankshaft pulley (3) is provided with at least two coaxial wheel rims, and the wheel diameter of each wheel rim of the crankshaft pulley (3) is set according to the output torque; The generator set (2) comprises a generator (21) and a generator pulley (22); One of the wheel rims of the crankshaft pulley (3) is connected to the generator pulley (22) in a transmission manner on the same plane via a generator drive belt (25), and the other wheel rims of the crankshaft pulley (3) are used to drive other engine components.

2. The engine arrangement structure of the split transmission according to claim 1, characterized in that: The crankshaft pulley (3) is provided with three levels of coaxial wheel rims; The wheel diameter of each level of the three-level coaxial wheel rim increases step by step, wherein the wheel diameter of the first wheel rim (31) is the smallest and is arranged at the outermost side of the crankshaft pulley (3); the wheel diameter of the third wheel rim (33) is the largest and is arranged at the innermost side of the crankshaft pulley (3); the wheel diameter of the second wheel rim (32) is between the first wheel rim (31) and the third wheel rim (33), and is sandwiched between the first wheel rim (31) and the third wheel rim (33).

3. The engine arrangement structure of the split transmission according to claim 2, characterized in that: The generator set (2) comprises a first generator (210), a second generator (211), a first generator pulley (220) and a second generator pulley (221); The second wheel rim (32) of the crankshaft pulley (3) is drivingly connected to the first generator pulley (220) and the second generator pulley (221) via the generator drive belt (25).

4. The engine arrangement structure of the split transmission according to claim 3 is characterized in that: It also includes an idler wheel (24) and a first tension wheel (23); The first tensioning wheel (23) and the idler wheel (24) abut against the generator drive belt (25).

5. The engine arrangement structure of the split transmission according to claim 2, characterized in that: Also includes a compressor pulley (41) and a compressor drive belt (42); The first wheel rim (31) of the crankshaft pulley (3) is drivingly connected to the compressor pulley (41) via the compressor drive belt (42).

6. The engine arrangement structure of the split transmission according to claim 2, characterized in that: It also includes a water pump pulley (51) and a water pump drive belt (52); The third wheel rim (33) of the crankshaft pulley is drivingly connected to the water pump pulley (51) via the water pump drive belt (52).

7. The engine arrangement structure of the split transmission according to claim 6, characterized in that: Also includes a second tensioning wheel (53); The second tension wheel (53) abuts against the water pump drive belt (52).

8. The engine arrangement structure of the split transmission according to claim 1, characterized in that: Also includes cooling fans; The cooling fan is provided with a driving motor, and the cooling fan is powered by the generator set (2).

9. The engine arrangement structure of the split transmission according to claim 1, characterized in that: It also includes a silicone oil shock absorber (6) for vibration reduction.

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