Diesel engine gear train

Abstract

The utility model discloses a diesel engine gear train which comprises a crankshaft belt pulley, a fan water pump belt pulley, a generator belt pulley and a tensioning wheel, a poly V-belt wheel disc is coaxially and fixedly sleeved on the crankshaft belt pulley, and the poly V-belt wheel disc, the fan water pump belt pulley and the generator belt pulley are in transmission connection through poly V-belts. Tensioning wheels are arranged among the poly V-belt wheel disc, the fan water pump belt wheel and the generator belt wheel. The transmission efficiency between the multi-wedge belt and the fan water pump wheel can be effectively improved through the multi-wedge belt, the multi-wedge belt can be conveniently replaced through the tensioning wheel, and the transmission wrap angle of the fan water pump wheel can be changed, so that the transmission performance is guaranteed according to needs, and the requirements of the anti-explosion engine can be effectively met through the wheel train, and the wheel train is matched with the anti-explosion engine.

Description

Technical Field

[0001] The utility model relates to the technical field of engine gear trains, in particular to a diesel engine gear train. Background Art

[0002] A diesel engine is an engine that burns diesel to release energy. The gear train is one of the key components of the front-end transmission system of the engine. It is arranged at the front of the engine and is used to drive accessories such as water pumps, fans, generators, air conditioners, and air compressors.

[0003] The explosion-proof engine used in underground coal mines requires a higher transmission speed, and the existing generator pulley system usually uses a V-belt for transmission. However, the V-belt transmission is inconvenient to tighten and difficult to replace, resulting in the existing engine pulley system being unable to match the explosion-proof engine used in underground coal mines. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a diesel engine gear train, which can effectively improve the transmission efficiency therebetween through a multi-V belt, and can facilitate the replacement of the multi-V belt through a tensioning pulley, and can also change the transmission angle of the fan water pump wheel, thereby ensuring the transmission performance as needed. Therefore, the gear train can effectively meet the needs of explosion-proof engines and be adapted to them.

[0006] (II) Technical solution

[0007] The utility model provides a diesel engine gear train, comprising a crankshaft pulley, a fan water pump pulley, a generator pulley and a tensioning pulley, wherein a coaxial fixed sleeve on the crankshaft pulley is provided with a multi-V belt pulley disc, the multi-V belt pulley disc, the fan water pump pulley and the generator pulley are connected through a multi-V belt transmission, and a tensioning pulley is provided between the multi-V belt pulley disc, the fan water pump pulley and the generator pulley.

[0008] Preferably, a plurality of positioning pins are provided between the crankshaft pulley and the poly-V belt pulley.

[0009] Preferably, any one or any two of a working wheel and an idler wheel are provided between the multi-V belt pulley, the fan water pump pulley and the generator pulley.

[0010] Preferably, the tensioning pulley provided between the multi-V belt pulley, the fan water pump pulley and the generator pulley is adjustable.

[0011] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0012] In the present utility model, through the multiple-wedge pulley disc sleeved on the crankshaft pulley, the transmission can be carried out between the crankshaft pulley, the fan water pump pulley and the generator pulley through the multiple-wedge belt, so that the transmission efficiency between them can be effectively improved through the multiple-wedge belt. And through the tensioner, it is convenient to replace the multiple-wedge belt, and the transmission wrap angle of the fan water pump pulley can also be changed, so as to ensure the transmission performance as required. Thus, through this gear train, the needs of the explosion-proof engine can be effectively met and adapted to it. Brief Description of the Drawings

[0013] Figure 1 Fig. is a schematic structural diagram of the first embodiment of a diesel engine gear train proposed by the present utility model.

[0014] Figure 2 Fig. is a schematic structural diagram of the second embodiment of a diesel engine gear train proposed by the present utility model.

[0015] Figure 3 Fig. is a schematic structural diagram of the third embodiment of a diesel engine gear train proposed by the present utility model.

[0016] Figure 4 Fig. is a schematic structural diagram of the fourth embodiment of a diesel engine gear train proposed by the present utility model.

[0017] Figure 5 Fig. is a schematic structural diagram of the fifth embodiment of a diesel engine gear train proposed by the present utility model.

[0018] Figure 6 Fig. is a schematic structural diagram of the installation structure of the crankshaft pulley and the multiple-wedge pulley disc of a diesel engine gear train proposed by the present utility model

[0019] Reference Signs: 1, crankshaft pulley; 2, fan water pump pulley; 3, generator pulley; 4, multiple-wedge pulley disc; 5, multiple-wedge belt; 6, tensioner; 8, working wheel; 9, idler wheel. Detailed Embodiment

[0020] To make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the drawings. It should be understood that these descriptions are exemplary and not intended to limit the scope of the present utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessarily confusing the concept of the present utility model.

[0021] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0023] like Figure 1 and Figure 6 As shown, a diesel engine gear train proposed by the utility model includes a crankshaft pulley 1, a fan water pump pulley 2 and a generator pulley 3, a coaxial fixed sleeve on the crankshaft pulley 1 is provided with a multi-V belt pulley 4, the multi-V belt pulley 4, the fan water pump pulley 2 and the generator pulley 3 are connected through a multi-V belt 5, and a tensioning pulley 6 is provided between the multi-V belt pulley 4, the fan water pump pulley 2 and the generator pulley 3.

[0024] In the utility model, through the multi-V belt pulley 4 sleeved on the crankshaft pulley 1, the multi-V belt 5 can be used for transmission between the crankshaft pulley 1, the fan water pump pulley 2 and the generator pulley 3, so that the multi-V belt 5 can effectively improve the transmission efficiency therebetween, and the multi-V belt 5 can be easily replaced through the tensioning pulley 6, and the transmission wrap angle of the fan water pump wheel can also be changed, so as to ensure the transmission performance as needed.

[0025] In an optional embodiment, a plurality of positioning pins are provided between the crankshaft pulley 1 and the multi-V belt pulley 4, and the transmission stability of the crankshaft pulley 1 and the multi-V belt pulley 4 can be further improved by the positioning pins.

[0026] In an optional embodiment, any one or any two of a working wheel 8 and an idler wheel 9 are provided between the multi-V belt pulley 4, the fan water pump pulley 2, and the generator pulley 3. The provided working wheel 8 can provide power to the diesel engine when new equipment needs to be added, and the stability of the gear train transmission can be further improved through the idler wheel 9.

[0027] In an optional embodiment, the tensioning wheel 6 provided between the multi-V belt pulley 4, the fan water pump pulley 2 and the generator pulley 3 can be adjusted. By adjusting the position of the adjustable tensioning wheel 6, the working wheel 8 and the idler wheel 9 can be added during use in coordination with the use of the diesel engine, thereby effectively preventing the situation where the working wheel 8 and the idler wheel 9 cannot be added due to the position of the tensioning wheel 6.

[0028] Among them, the speed ratio of the fan water pump pulley to the crankshaft pulley 1 is not less than 2, and the speed ratio of the generator pulley to the crankshaft pulley 1 is not less than 2.75.

[0029] like Figure 2 As shown, implementation 2: the generator pulley 3 and the fan water pump pulley 2 are arranged at intervals on the left and right, the crankshaft pulley 1 is located below the fan water pump pulley 2, the multi-V belt pulley disc 4 is coaxially fixedly sleeved on the crankshaft pulley 1, the tensioning pulley 6 is located between the generator pulley 3 and the fan water pump pulley 2, and an idler pulley 9 is further provided below the generator pulley 3. The generator pulley 3, the fan water pump pulley 2, the multi-V belt pulley disc 4, the tensioning pulley 6 and the idler pulley 9 are connected through a multi-V belt 5 for transmission;

[0030] like Figure 3 As shown, implementation three: the generator pulley 3 and the fan water pump pulley 2 are arranged at intervals on the left and right, the crankshaft pulley 1 is located below the fan water pump pulley 2, the multi-V belt pulley disc 4 is coaxially fixedly sleeved on the crankshaft pulley 1, the tensioning wheel 6 is located between the generator pulley 3 and the fan water pump pulley 2, an idler wheel 9 is also provided below the generator pulley 3, and a working wheel 8 is provided at the end of the idler wheel 9 away from the crankshaft pulley 1, and the generator pulley 3, the fan water pump pulley 2, the multi-V belt pulley disc 4, the tensioning wheel 6, the idler wheel 9 and the working wheel 8 are connected by a multi-V belt 5 for transmission;

[0031] like Figure 4 As shown, in the fourth embodiment, the generator pulley 3 and the fan water pump pulley 2 are arranged at intervals on the left and right, the crankshaft pulley 1 is located below the fan water pump pulley 2, the multi-V belt pulley disc 4 is coaxially fixedly sleeved on the crankshaft pulley 1, the idler wheel 9 or the working wheel 8 is located between the generator pulley 3 and the fan water pump pulley 2, the tensioning wheel 6 is located below the working wheel 8 or the idler wheel 9, and the generator pulley 3, the fan water pump pulley 2, the multi-V belt pulley disc 4, the tensioning wheel 6, the idler wheel 9 or the working wheel 8 are connected by a multi-V belt 5;

[0032] like Figure 5 As shown, embodiment five: the generator pulley 3 and the fan water pump pulley 2 are arranged at intervals on the left and right, the crankshaft pulley 1 is located below the fan water pump pulley 2, the multi-V belt pulley disc 4 is coaxially fixed on the crankshaft pulley 1, the idler wheel 9 or the working wheel 8 is located between the generator pulley 3 and the fan water pump pulley 2, a working wheel 8 is also provided below the generator pulley 3, the tensioning wheel 6 is located between the working wheel 8 below and the crankshaft pulley 1, and the generator pulley 3, the fan water pump pulley 2, the multi-V belt pulley disc 4, the tensioning wheel 6, the idler wheel 9 and the two working wheels 8 are connected by a multi-V belt 5.

[0033] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A diesel engine gear train, characterized in that: The invention comprises a crankshaft pulley (1), a fan water pump pulley (2) and a generator pulley (3); a coaxial fixed sleeve on the crankshaft pulley (1) is provided with a multi-V belt pulley disk (4); the multi-V belt pulley disk (4), the fan water pump pulley (2) and the generator pulley (3) are connected to each other through a multi-V belt (5); a tensioning wheel (6) is provided between the multi-V belt pulley disk (4), the fan water pump pulley (2) and the generator pulley (3).

2. A diesel engine gear train according to claim 1, characterized in that: A plurality of positioning pins are provided between the crankshaft pulley (1) and the multi-V belt pulley (4).

3. A diesel engine gear train according to claim 1, characterized in that: Any one or any two of a working wheel (8) and an idler wheel (9) are arranged between the multi-V belt pulley (4), the fan water pump pulley (2) and the generator pulley (3).

4. A diesel engine gear train according to claim 1, characterized in that: The tensioning wheel (6) arranged between the multi-V belt pulley (4), the fan water pump pulley (2) and the generator pulley (3) can be adjusted.

Images