Rear end structure of engine

Abstract

The utility model discloses an engine rear end structure, and relates to the technical field of automobiles. An air cylinder body, a transition plate, a flywheel assembly, a clutch and a gearbox are sequentially arranged in the axis direction, an inner ring of the flywheel assembly is coaxially provided with a shaft bearing, and a crankshaft of the air cylinder body penetrates through the transition plate to be connected with the flywheel assembly. The head end of a first shaft of the gearbox penetrates through an inner spline of the clutch to be installed in an inner ring of a first shaft bearing, one side of the transition plate is connected with the air cylinder body, the other side of the transition plate is connected with the gearbox, and the clutch and the flywheel assembly structure are arranged in a space defined by the gearbox, the transition plate and the air cylinder body. Therefore, a large number of changes of parts such as an engine body and a gearbox are avoided, and the purpose of matching and carrying of the engine and different whole vehicle gearboxes is effectively achieved through adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an engine rear end structure. Background Art

[0002] The rear end of the engine is mainly equipped with the rear end connection structure of the engine body, which is often used to combine with the transmission and other parts of the vehicle manufacturer, providing effective protection for the reliable and efficient transmission of power from the engine to the transmission and then to the vehicle. Generally speaking, when an engine is matched with different vehicles, due to the different interfaces of the transmission, it is often necessary to adjust the rear end structure of the engine, or adjust the connection interface of the transmission, etc., resulting in significant changes to the structure of the parts involved, and even requiring the mold to be readjusted to realize the parts that need to be changed. The economy and versatility are poor. Therefore, setting up a simple, effective and interchangeable connection structure between the engine and the transmission will greatly improve the success rate of matching the engine with different vehicles.

[0003] In order to successfully match the engine and gearbox, the mechanical structure is usually designed to match each other. However, if the gearbox is deformed and matched to another vehicle, it is usually necessary to change the corresponding interface of the rear end of the body or the gearbox, and even readjust the mold to achieve matching. This takes a long time and has poor economic benefits and versatility. Utility Model Content

[0004] The purpose of the utility model is to provide an engine rear end structure to avoid a large number of changes to parts such as the engine body and the gearbox, and effectively achieve the purpose of matching the engine with different vehicle gearboxes through adjustment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical means:

[0006] A rear end structure of an engine is provided with a cylinder block, a transition plate, a flywheel assembly, a clutch and a gearbox in sequence along the axial direction; the inner ring of the flywheel assembly is coaxially configured with a shaft bearing; the crankshaft of the cylinder block passes through the transition plate and is connected to the flywheel assembly; the head end of one shaft of the gearbox passes through the internal spline of the clutch and is installed in the inner ring of the one shaft bearing; one side of the transition plate is connected to the cylinder block and the other side is connected to the gearbox; the clutch and the flywheel assembly are arranged in a space enclosed by the gearbox, the transition plate and the cylinder block.

[0007] Preferably, a starter is installed on the gearbox or on the outer wall of the cylinder body.

[0008] Furthermore, when the starter is mounted on the outer wall of the cylinder body, the ring gear of the flywheel assembly is arranged at the front end of the flywheel assembly.

[0009] Furthermore, when the starter is installed on the outer wall of the gearbox, the ring gear of the flywheel assembly is arranged at the rear end of the flywheel assembly.

[0010] Furthermore, the flywheel assembly is mounted on the rear end surface of the crankshaft, and the clutch is mounted on the flywheel assembly.

[0011] Furthermore, the clutch includes a friction plate and a pressure plate coaxially arranged in a direction away from the flywheel assembly.

[0012] Furthermore, the transition plate is fixedly connected to the cylinder body via positioning pin sleeves and bolts.

[0013] Furthermore, the gearbox and the transition plate are fixedly connected via positioning pin sleeves and bolts.

[0014] Furthermore, the clutch and the flywheel assembly are fixedly connected via a positioning pin sleeve and bolts.

[0015] During use, the utility model has the following beneficial effects:

[0016] In this technical solution, an effective engine rear-end connection layout structure is set up, which not only avoids a large number of changes to parts such as the engine body and gearbox, but also effectively realizes the matching of the engine with different vehicle gearboxes by adjusting this connection structure. It can be said to be simple, effective and interchangeable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the utility model.

[0018] Among them, 1-cylinder block, 2-transition plate, 3-flywheel assembly, 4-clutch, 5-gearbox, 6-single shaft bearing, 7-starter, 8-friction plate, 9-pressure plate. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Please refer to Figure 1As shown, an engine rear end structure is provided with a cylinder block 1, a transition plate 2, a flywheel assembly 3, a clutch 4 and a gearbox 5 in sequence along the axial direction. The inner ring of the flywheel assembly 3 is coaxially constructed with a shaft bearing 6. The crankshaft of the cylinder block 1 passes through the transition plate 2 and is connected to the flywheel assembly 3. The head end of one shaft of the gearbox 5 passes through the internal spline of the clutch 4 and is installed in the inner ring of the one shaft bearing 6. One side of the transition plate 2 is connected to the cylinder block 1, and the other side is connected to the gearbox 5. The clutch 4 and the flywheel assembly 3 are constructed in a space enclosed by the gearbox 5, the transition plate 2 and the cylinder block 1.

[0026] In this way, by setting a variety of matching positioning grooves on the transition plate 2 to match different gearboxes 5, not only can a large number of changes in parts such as the engine body and the gearbox 5 be avoided, but the engine can also be effectively matched with different vehicle gearboxes 5 by adjusting this connection structure. It can be said that it is simple, effective and has good interchangeability.

[0027] Furthermore, a starter 7 is installed on the gearbox 5 or on the outer wall of the cylinder block 1 .

[0028] When the starter 7 is installed on the outer wall of the cylinder block 1 , the ring gear of the flywheel assembly 3 is arranged at the front end of the flywheel assembly 3 .

[0029] Furthermore, when the starter 7 is mounted on the outer wall of the gearbox 5 , the ring gear of the flywheel assembly 3 is disposed at the rear end of the flywheel assembly 3 .

[0030] In this way, the design of the corresponding flywheel assembly 3 ring gear is automatically adapted according to the arrangement position of the starter 7 to quickly adapt to the entire vehicle.

[0031] Furthermore, the flywheel assembly 3 is mounted on the rear end surface of the crankshaft, and the clutch 4 is mounted on the flywheel assembly 3 .

[0032] Furthermore, the clutch 4 includes a friction plate 8 and a pressure plate 9 coaxially arranged in a direction away from the flywheel assembly 3.

[0033] In order to ensure installation positioning accuracy, the transition plate 2 is fixedly connected to the cylinder body 1 through positioning pin sleeves and bolts.

[0034] Furthermore, the gearbox 5 is fixedly connected to the transition plate 2 via positioning pin sleeves and bolts.

[0035] At the same time, the clutch 4 is fixedly connected to the flywheel assembly 3 via a positioning pin sleeve and bolts.

[0036] Specifically, the first shaft of the gearbox 5 passes through the inner spline of the clutch 4, and the front end completely falls on the inner ring of the first shaft bearing 6, thereby increasing the operating rigidity of the first shaft.

[0037] 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 scope of protection of the present invention.

Claims

1. An engine rear end structure, characterized in that: A cylinder block (1), a transition plate (2), a flywheel assembly (3), a clutch (4) and a gearbox (5) are sequentially provided along the axial direction. The inner ring of the flywheel assembly (3) is coaxially structured with a shaft bearing (6). The crankshaft of the cylinder block (1) passes through the transition plate (2) and is connected to the flywheel assembly (3). The head end of one shaft of the gearbox (5) passes through the inner spline of the clutch (4) and is installed in the inner ring of the shaft bearing (6). One side of the transition plate (2) is connected to the cylinder block (1), and the other side is connected to the gearbox (5). The clutch (4) and the flywheel assembly (3) are arranged in a space enclosed by the gearbox (5), the transition plate (2) and the cylinder block (1).

2. The engine rear end structure according to claim 1, characterized in that: A starter (7) is mounted on the gearbox (5) or on the outer wall of the cylinder block (1).

3. The engine rear end structure according to claim 2, characterized in that: When the starter (7) is mounted on the outer wall of the cylinder body (1), the ring gear of the flywheel assembly (3) is arranged at the front end of the flywheel assembly (3).

4. The engine rear end structure according to claim 2, characterized in that: When the starter (7) is mounted on the outer wall of the gearbox (5), the ring gear of the flywheel assembly (3) is arranged at the rear end of the flywheel assembly (3).

5. The engine rear end structure according to claim 1, characterized in that: The flywheel assembly (3) is mounted on the rear end face of the crankshaft, and the clutch (4) is mounted on the flywheel assembly (3).

6. An engine rear end structure according to claim 1 or 5, characterized in that: The clutch (4) includes a friction plate (8) and a pressure plate (9) arranged coaxially in a direction away from the flywheel assembly (3).

7. The engine rear end structure according to claim 1, characterized in that: The transition plate (2) is fixedly connected to the cylinder body (1) via a positioning pin sleeve and bolts.

8. The engine rear end structure according to claim 1, characterized in that: The gearbox (5) and the transition plate (2) are fixedly connected via positioning pin sleeves and bolts.

9. The engine rear end structure according to claim 1, characterized in that: The clutch (4) and the flywheel assembly (3) are fixedly connected via a positioning pin sleeve and bolts.

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