Free end gear train transmission structure of heavy oil engine

Abstract

The utility model discloses a free end gear train transmission structure of a heavy oil engine, which relates to the technical field of engines and comprises an engine main body, a crankshaft is arranged in the engine main body, a crankshaft belt wheel is mounted at the end part of the crankshaft, and an air pump mounting bracket is mounted on the engine main body. The integrated belt wheel transmission structure is adopted, the transverse space of the air pump belt wheel, the transverse space of the water pump belt wheel and the transverse space of the crankshaft belt wheel are kept consistent, the air pump belt wheel, the water pump belt wheel and the crankshaft belt wheel are located on the same installation plane, and the belt wheels and the crankshaft belt wheel which are the same in specification and width drive the water pump belt wheel and the air pump belt wheel to operate through a belt. By the adoption of the transmission structure, on the premise that the installation positions of the air pump and the water pump are not changed, the power conversion requirement can be met only by adjusting the transverse installation size, meanwhile, the occupied installation space is small, an adjusting space is reserved for reducing the overall size of an engine, and the service life of the engine is prolonged while the use requirement of the engine is met. And the installation space is also saved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a free-end gear train transmission structure of a heavy oil engine. Background Art

[0002] The gear transmission structure is one of the main peripheral components of a heavy oil engine. Its primary function is to transmit the force from the crankshaft to the air pump pulley and the water pump pulley, driving the air pump and the water pump to work and realize its power output conversion function.

[0003] In the context of high compactness and lightweight requirements for engines, heavy oil engines adopt an external belt drive design to drive the accessory assembly, and the gear train transmission mechanism is arranged and designed in a limited space to meet the power requirements of the accessory assembly. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the existing technology, the utility model provides a heavy oil engine free end gear train transmission structure, which solves the technical problem of the large installation space of the existing heavy oil engine free end gear train transmission structure.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A free-end gear train transmission structure of a heavy oil engine comprises an engine main body, a crankshaft is arranged in the engine main body, a crankshaft pulley is installed on the end of the crankshaft, an air pump mounting bracket is installed on the engine main body, an air pump is installed on the air pump mounting bracket, an air pump pulley is installed on the output shaft of the air pump, a water pump is installed on the engine main body, a water pump pulley is installed on the output shaft of the water pump, a belt is sleeved on the air pump pulley, the water pump pulley and the crankshaft pulley, a tensioning pulley is arranged above the engine main body, and the air pump pulley, water pump pulley and crankshaft pulley are on the same mounting plane.

[0009] Preferably, the upper end of the belt passes through the bottom of the tension wheel, the tension wheel is used to maintain the tension of the belt, and the water pump and the air pump are located on both sides of the crankshaft pulley.

[0010] Preferably, the air pump pulley, the water pump pulley and the crankshaft pulley have the same size, a box body is mounted on the engine body, and the tensioning pulley is mounted on the box body.

[0011] Preferably, the air pump pulley, the water pump pulley and the crankshaft pulley are distributed along the width direction of the engine body.

[0012] (3) Beneficial effects

[0013] I. The heavy oil engine free end wheel train transmission structure adopts an "integrated" belt wheel transmission structure, keeps the air pump belt wheel, the water pump belt wheel and the crankshaft belt wheel consistent in horizontal space, makes them located at the same installation plane, adopts belt wheels with the same specification and the same width, the crankshaft belt wheel drives the water pump belt wheel and the air pump belt wheel to rotate through a belt, a tension wheel is additionally installed on the upper end of the box to adjust the tightness of the belt, by adopting the transmission structure, the power conversion requirement can be realized by only adjusting the horizontal installation size under the premise that the installation positions of the air pump and the water pump are not changed, the installation space is small, the adjustment space is left for reducing the overall size of the engine, the engine use requirement is met, and the installation space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail below.

[0015] Figure 1 It is the structure diagram of the whole heavy oil engine free end wheel train transmission structure of the utility model;

[0016] Figure 2 It is the structure diagram of the crankshaft belt wheel of the utility model.

[0017] Legend: 1, air pump belt wheel;2, air pump mounting bracket;3, box;4, water pump belt wheel;

[0018] 5, tension wheel;6, belt;7, crankshaft belt wheel. DETAILED DESCRIPTION

[0019] The embodiment of the application provides a heavy oil engine free end wheel train transmission structure, which effectively solves the problem of large installation space of the existing heavy oil engine free end wheel train transmission structure. The heavy oil engine free end wheel train transmission structure adopts an "integrated" belt wheel transmission structure, keeps the air pump belt wheel, the water pump belt wheel and the crankshaft belt wheel consistent in horizontal space, makes them located at the same installation plane, adopts belt wheels with the same specification and the same width, the crankshaft belt wheel drives the water pump belt wheel and the air pump belt wheel to rotate through a belt, a tension wheel is additionally installed on the upper end of the box to adjust the tightness of the belt, by adopting the transmission structure, the power conversion requirement can be realized by only adjusting the horizontal installation size under the premise that the installation positions of the air pump and the water pump are not changed, the installation space is small, the adjustment space is left for reducing the overall size of the engine, the engine use requirement is met, and the installation space is saved.

[0020] Embodiment: as Figure 1 and Figure 2As shown, the technical solution in the embodiment of the present application effectively solves the technical problem of the large installation space of the existing heavy oil engine free end gear train transmission structure. The overall idea is as follows:

[0021] In view of the problems existing in the prior art, the utility model provides a free-end gear train transmission structure of a heavy oil engine, including an engine main body, a crankshaft is arranged in the engine main body, a crankshaft pulley 7 is installed at the end of the crankshaft, an air pump mounting bracket 2 is installed on the engine main body, an air pump is installed on the air pump mounting bracket 2, an air pump pulley 1 is installed on the output shaft of the air pump, a water pump is installed on the engine main body, a water pump pulley 4 is installed on the output shaft of the water pump, a belt 6 is sleeved on the air pump pulley 1, the water pump pulley 4 and the crankshaft pulley 7, a tensioning pulley 5 is arranged above the engine main body, the air pump pulley 1, the water pump pulley 4 and the crankshaft pulley 7 are on the same installation plane, the upper end of the belt 6 passes through the bottom of the tensioning pulley 5, and the tensioning pulley 5 is used to maintain the tension of the belt 6, the water pump and the air pump are located on both sides of the crankshaft pulley 7, the air pump pulley 1, the water pump pulley 4 and the crankshaft pulley 7 have the same size, and the engine A box body 3 is installed on the machine body, and a tensioning pulley 5 is installed on the box body 3. The air pump pulley 1, the water pump pulley 4 and the crankshaft pulley 7 are distributed along the width direction of the engine body. The free end gear train transmission structure of the heavy oil engine adopts an "integrated" pulley transmission structure, which keeps the lateral space of the air pump pulley 1, the water pump pulley 4 and the crankshaft pulley 7 consistent so that they are located on the same installation plane. Pulleys of the same specifications and width are used. The crankshaft pulley 7 drives the water pump pulley 1 and the air pump pulley 4 to operate through a belt 6. A tensioning pulley 5 is installed on the upper end of the box body 3 to adjust the tightness of the belt 6. With this transmission structure, without changing the installation position of the air pump and the water pump, only the lateral installation size needs to be adjusted to achieve the power conversion requirement. At the same time, the installation space is small, which leaves adjustment space for reducing the overall size of the engine. While meeting the engine use requirements, it also saves installation space.

[0022] Working principle:

[0023] In the first step, the free-end gear train transmission structure of the heavy oil engine adopts an "integrated" pulley transmission structure, which keeps the horizontal space of the air pump pulley 1, the water pump pulley 4 and the crankshaft pulley 7 consistent, so that they are located on the same installation plane, and use pulleys of the same specifications and widths. The crankshaft pulley 7 drives the water pump pulley 1 and the air pump pulley 4 through a belt 6. A tensioning pulley 5 is installed at the upper end of the box body 3 to adjust the tightness of the belt 6. With this transmission structure, without changing the installation position of the air pump and the water pump, only the horizontal installation size needs to be adjusted to achieve the power conversion requirement. At the same time, the installation space is small, leaving adjustment space for reducing the overall size of the engine, meeting the engine use requirements while also saving installation space.

[0024] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A free-end gear train transmission structure for a heavy oil engine, comprising an engine body, wherein a crankshaft is disposed within the engine body, and characterized in that: A crankshaft pulley (7) is mounted on the end of the crankshaft, an air pump mounting bracket (2) is mounted on the engine body, an air pump is mounted on the air pump mounting bracket (2), and an air pump pulley (1) is mounted on the output shaft of the air pump; A water pump is installed on the engine body, a water pump pulley (4) is installed on the output shaft of the water pump, a belt (6) is sleeved on the air pump pulley (1), the water pump pulley (4) and the crankshaft pulley (7), and a tensioning pulley (5) is provided above the engine body; The air pump pulley (1), the water pump pulley (4) and the crankshaft pulley (7) are on the same mounting plane.

2. The heavy oil engine free end gear train transmission structure according to claim 1, characterized in that: The upper end of the belt (6) passes through the bottom of the tension wheel (5).

3. The free end gear train transmission structure of a heavy oil engine according to claim 1, characterized in that: The tension wheel (5) is used to maintain the tension of the belt (6).

4. The heavy oil engine free end gear train transmission structure according to claim 1, characterized in that: The water pump and the air pump are located on both sides of the crankshaft pulley (7).

5. The heavy oil engine free end gear train transmission structure according to claim 1, characterized in that: The air pump pulley (1), the water pump pulley (4) and the crankshaft pulley (7) have the same size.

6. The heavy oil engine free end gear train transmission structure according to claim 1, characterized in that: A box (3) is installed on the engine body.

7. The heavy oil engine free end gear train transmission structure according to claim 6, characterized in that: The tension wheel (5) is mounted on the box body (3).

8. The heavy oil engine free end gear train transmission structure according to claim 1, characterized in that: The air pump pulley (1), the water pump pulley (4) and the crankshaft pulley (7) are distributed along the width direction of the engine body.

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