CN213008608U

CN213008608U - Mounting mechanism of motorcycle engine

Info

Publication number: CN213008608U
Application number: CN202021524279.0U
Authority: CN
Inventors: 刘忠伟
Original assignee: Jiangmen Dachangjiang Group Co Ltd
Current assignee: Jiangmen Dachangjiang Group Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-20
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses an installation mechanism of a motorcycle engine, which comprises a frame and an engine, wherein the engine is installed on the frame through a first fixing position and a second fixing position of the frame, the engine comprises a crankcase and a cylinder, the second fixing position of the frame is connected with the rear end of the crankcase, the first fixing position of the frame is connected with the front end of the crankcase through a suspension bracket, and the installation of the engine on the frame is realized; the first fixing position and the second fixing position of the engine and the frame are both connected to a crankcase at the lower part of the engine; the engine cooling device saves more space for arranging functional mechanisms such as a cooling device of the engine for the cylinder at the upper part of the engine; the vibration directly transmitted by the cylinder head is reduced, so that the vibration of the whole vehicle is reduced, and the riding comfort of the vehicle is improved; the upper part of the engine is provided with more spaces, so that the engine and parts around the engine can be conveniently maintained, disassembled and assembled.

Description

Mounting mechanism of motorcycle engine

Technical Field

The utility model relates to a motorcycle engine specifically is motorcycle engine's installation mechanism.

Background

At present, two common ways are available for arranging the engine of a motorcycle: the engine is directly arranged on a frame (such as a truss frame and a cradle frame) and has no independent engine mounting structure; and secondly, the engine is installed together through the frame body and the engine installation support. The second mode mainly adopts a structure of connecting the frame body and the engine cylinder head by adopting an engine mounting bracket, the engine is fixedly mounted and connected with the cylinder head, and the biggest defect is that the vibration of the engine is easily transmitted to the frame body through the cylinder head and the engine mounting bracket, so that the vibration of the whole vehicle is caused.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a novel installation mechanism of a motorcycle engine.

The utility model provides a technical scheme that its technical problem adopted is:

the installation mechanism of the motorcycle engine comprises a frame and the engine, wherein the engine is installed on the frame through a first fixing position and a second fixing position of the frame, the engine comprises a crankcase and a cylinder, the second fixing position of the frame is connected with the rear end of the crankcase, the first fixing position of the frame is connected with the front end of the crankcase through a suspension bracket, and the installation of the engine on the frame is realized.

The suspension bracket comprises a fixed end and a flexible connecting end, the fixed end is fixedly connected with a first fixed position of the frame, and the flexible connecting end is connected with the crankcase.

The suspension bracket comprises a connecting rod body and a connecting seat, the fixed end is arranged on the connecting rod body, and the flexible connecting end is fixed at the other end of the connecting rod body through the connecting seat.

The flexible connecting end is arranged in the sleeve on the left side part and the right side part of the connecting seat and comprises an outer bushing and an inner bushing, and a rubber buffer layer is clamped between the inner bushing and the outer bushing to realize flexible connection.

The fixed end is provided with a screw through hole which radially penetrates through the connecting rod body.

Two or more screws are arranged in the screw through holes along the axial direction of the connecting rod body.

The first fixing position is formed by a fixing seat at the front end of the frame, the fixing end is installed in the fixing seat, and a screw penetrates through one side of the fixing seat and penetrates out of the other side of the fixing seat through the screw penetrating hole to be fastened.

The utility model has the advantages that: the rear end of the engine crankcase of the utility model is directly connected with the frame, the front end is connected with the frame through the suspension bracket, and the first and second fixing positions of the engine and the frame are both connected with the crankcase at the lower part of the engine; (1) the engine cooling device saves more space for arranging functional mechanisms such as a cooling device of the engine for the cylinder at the upper part of the engine; (2) the vibration directly transmitted by the cylinder head is reduced, so that the vibration of the whole vehicle is reduced, and the riding comfort of the vehicle is improved; and (3) more spaces are formed in the upper part of the engine, so that the engine and parts around the engine can be conveniently maintained, disassembled and assembled.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic exploded view of the present invention;

fig. 3 is a schematic structural diagram of the flexible connecting section of the present invention.

Detailed Description

Referring to fig. 1 to 3, the mounting mechanism of a motorcycle engine comprises a frame 1 and an engine 2, wherein the engine 2 is fixedly mounted on the frame 1 through a first fixing position and a second fixing position, the engine 2 comprises a crankcase 3 and a cylinder 4, the second fixing position 11 is located below the frame 1 and is connected with the rear end of the crankcase 3, the first fixing position 12 is located above the frame 1 and is connected with the front end of the crankcase 3 through a suspension bracket 5, and the mounting of the engine 2 on the frame 1 is realized. The engine 2 is all connected on crankcase 3 of engine 1 lower part with the first of frame 1, the fixed position of second, and the cylinder on 3 upper portions of crankcase need not other connection structure occupation space, makes to have functional structures such as heat abstractor that more places arranged the engine around the engine upper portion, and furtherly, because the crankcase top has more spaces, the convenience carries out dismouting maintenance to the part of crankcase top, and especially maintenance to engine cylinder is simpler. More advantageously, the first frame fixing position 12 is connected with the crankcase 3 through the suspension bracket 5 to complete the installation of the engine, so that the vibration generated by the cylinder in the working process is prevented from being directly transmitted to the frame, the vibration of the whole vehicle is effectively reduced, and the riding comfort of the vehicle is improved. In addition, the suspension bracket 5 and the crankcase 3 can realize rigid or flexible connection modes, and when flexible connection is adopted, the vibration transmission to the frame can be further reduced, and the vibration of the whole vehicle is effectively reduced.

The suspension bracket 5 comprises a connecting rod body 6 and a connecting seat 7, one end of the connecting rod body 6 is provided with a fixed end 51 which is connected and fastened with the frame 1, and the other end of the connecting rod body is connected with the front end of the crankcase 3 through the connecting seat 7. The suspension bracket has the advantages that the structure is simplified through the design, the occupied space is small, complex processing and manufacturing are not needed, and the cost is reduced. The connecting base 7 and the crankcase 3 can be rigidly connected or flexibly connected. When the scheme of flexible connection is adopted, the connecting seat 7 is provided with a flexible connecting end connected with the front end of the crankcase 3. The left side and the right side of the connecting seat 7 are provided with sleeves 71 for mounting the flexible connecting end 52, the flexible connecting end 52 comprises an outer bushing 521 and an inner bushing 522, a rubber buffer layer 523 is arranged between the inner bushing and the outer bushing to realize flexible connection, the vibration of the engine is buffered and weakened through the rubber buffer layer 523, and the problem that the vibration of the engine is transmitted to a frame is further optimized.

The first fixing position 12 of the frame 1 is formed by a fixing seat 8 at the front end of the frame, a fixing end 51 of the suspension bracket 5 is installed in the fixing seat 8, the fixing end 51 is provided with a screw penetrating hole 511 which radially penetrates through the connecting rod body 6, and one side of the screw penetrating through the fixing seat 8 penetrates out of the other side of the fixing seat through the screw penetrating hole 511 and is fastened, so that the fixing end 51 is fixed with the fixing seat 8. Preferably, the screw insertion holes 511 are arranged in two or more positions along the axial direction of the connection rod body 6, thereby completely limiting the degree of freedom of the fixed end 51 in the fixed base 8, and thus the fixed end can be more stably installed. Adopt this kind of structure, can pass through the second fixed position earlier the engine and install to the frame, install 5 one end of underslung on the frame again, the other end is installed on engine crankcase 3, compares traditional structure, and the engine installation is more convenient, and efficiency improves greatly, also can conveniently pull down underslung 5 during later maintenance and maintain the engine.

Claims

1. The utility model provides an installation mechanism of motorcycle engine, includes frame (1) and engine (2), engine (2) are installed on frame (1) through the first, the fixed position of second of frame, engine (2) include crankcase (3) and cylinder (4), the fixed position of second (11) of frame (1) with crankcase (3) rear end is connected, its characterized in that: the first fixing position (12) of the frame (1) is connected with the front end of the crankcase (3) through a suspension bracket (5), and the engine (2) is installed on the frame (1).

2. The mounting mechanism of claim 1 wherein: hang support (5) including stiff end (51) and flexible connection end (52), stiff end (51) with the first fixed position (12) fixed connection of frame (1), flexible connection end (52) with crankcase (3) are connected.

3. The mounting mechanism of claim 2 wherein: the suspension bracket (5) comprises a connecting rod body (6) and a connecting seat (7), the fixed end (51) is arranged on the connecting rod body (6), and the flexible connecting end (52) is fixed at the other end of the connecting rod body (6) through the connecting seat (7).

4. The mounting mechanism of claim 3 wherein: the flexible connecting end (52) is arranged in a sleeve (71) at the left side part and the right side part of the connecting seat (7), the flexible connecting end (52) comprises an outer bushing (521) and an inner bushing (522), and a rubber buffer layer (523) is clamped between the inner bushing and the outer bushing to realize flexible connection.

5. The mounting mechanism of claim 3 wherein: the fixed end (51) is provided with a screw through hole (511) which radially penetrates through the connecting rod body (6).

6. The mounting mechanism of claim 5 wherein: the screw through holes (511) are arranged in two or more than two along the axial direction of the connecting rod body (6).

7. The mounting mechanism of claim 5 or 6 wherein: the first fixing position (12) is formed by a fixing seat (8) at the front end of the frame, the fixing end (51) is installed in the fixing seat (8), and a screw penetrates through one side of the fixing seat (8) and penetrates out of the other side of the fixing seat through a screw penetrating hole (511) to be fastened.