CN215860464U

CN215860464U - Engine rear end power output transmission mechanism

Info

Publication number: CN215860464U
Application number: CN202122385922.7U
Authority: CN
Inventors: 蒙东东; 谭达辉; 陈镇培; 蔚兴建; 曹杨军; 黄幼林; 许鑫达
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-18
Anticipated expiration: 2031-09-29

Abstract

The application provides an engine rear end power take off drive mechanism belongs to engine technical field. This engine rear end power take off drive mechanism includes power take off subassembly and power take off drive assembly, the power take off subassembly includes organism, bent axle, flywheel shell and flywheel dish, the bent axle rotates to extend the organism, power take off drive assembly includes connecting plate, bearing spare, transmission shaft, axle sleeve and belt pulley, drives flywheel dish and axle sleeve rotation through the bent axle, and the axle sleeve drives the transmission shaft transmission, and the transmission shaft drives the belt pulley and rotates to with the power take off of engine to the belt pulley, the belt pulley cover is on the transmission pipe simultaneously, and is close to the connecting plate, inside transmission shaft lug connection to flywheel dish and bent axle, the part is less, thereby the effectual thickness that reduces the flywheel chamber that connecting plate and flywheel shell combination formed, thereby axial occupation space has been reduced on the whole, the uniformity of assembly has been guaranteed effectively.

Description

Engine rear end power output transmission mechanism

Technical Field

The application relates to the field of engines, in particular to an engine rear-end power output transmission mechanism.

Background

The engine is a machine capable of converting other forms of energy into mechanical energy, and comprises an internal combustion engine, an external combustion engine, a motor and the like, the engine has certain requirements on body types when being installed in a vehicle body, and the power output transmission mechanism of some existing engines has more parts and certain body types, occupies more space and cannot completely ensure consistency when being assembled with other workpieces.

SUMMERY OF THE UTILITY MODEL

In order to remedy the above deficiencies, the present application provides an engine rear-end power output transmission mechanism that aims to ameliorate the problems noted in the background above.

The embodiment of the application provides an engine rear end power output transmission mechanism which comprises a power output assembly and a power output transmission assembly.

The power output assembly comprises a machine body, a crankshaft, a flywheel shell and a flywheel disc, the crankshaft rotates to extend out of the machine body, the flywheel shell is fixedly connected to the outer side of the machine body, the flywheel disc is installed at one end of the crankshaft, and the flywheel disc is in clearance fit with the inner wall of the flywheel shell.

The power output transmission assembly comprises a connecting plate, a bearing piece, a transmission shaft, a shaft sleeve and a belt pulley, wherein one side of the connecting plate is installed on one side of the flywheel shell, the connecting plate is provided with a transmission pipe, the bearing piece is installed in the transmission pipe, the transmission shaft penetrates through the bearing piece, the shaft sleeve is arranged in the crankshaft, one end of the transmission shaft is fixedly connected in the shaft sleeve, the belt pulley is fixedly connected to the other end of the transmission shaft, and the belt pulley is rotatably sleeved on the outer side of the transmission pipe.

In the above-mentioned realization process, drive flywheel dish and axle sleeve rotation through the bent axle, the axle sleeve drives the transmission shaft transmission, the transmission shaft drives the belt pulley and rotates, thereby the power take off to the belt pulley with the engine, belt pulley cover is on the transmission pipe simultaneously, and be close to the connecting plate, inside transmission shaft lug connection to flywheel dish and bent axle, the part is less, thereby the effectual thickness that reduces the flywheel chamber that connecting plate and flywheel shell combination formed, thereby axial occupation space has been reduced on the whole, the uniformity of assembly has been guaranteed effectively.

In a specific embodiment, the crankshaft is provided with a groove, the shaft sleeve is inserted into the groove, and the shaft sleeve is connected to the flywheel disc and the crankshaft through fastening bolts.

In the implementation process, the shaft sleeve and the fastening bolt are arranged, so that the crankshaft and the flywheel disc can be connected, and the shaft sleeve can also be connected with the transmission shaft.

In a specific embodiment, the connection between the transmission shaft and the sleeve is a spline connection.

In the implementation process, the synchronous rotation transmission consistency is ensured in a spline connection mode.

In a specific embodiment, one side of the connecting plate is provided with a yielding groove, and the flywheel disc is in clearance fit with the inner wall of the yielding groove.

In the implementation process, the receding groove is formed, so that one part of the flywheel shell is positioned in the receding groove to rotate, the axial thickness is reduced to a certain extent, and the space is saved.

In a specific embodiment, the connecting plate is circular, and a plurality of bolt head abdicating holes are formed on the periphery of the connecting plate.

In the implementation process, the bolt head abdicating hole is formed, and when the connecting plate is connected with the flywheel shell through the bolt, the bolt can be hidden in the hole, so that the trend of the compact belt can be avoided.

In a specific embodiment, the bearing member is a double-row cylindrical roller bearing, and a retainer ring is arranged at the end part of the bearing member.

In the implementation process, the double-row cylindrical roller bearing is good in stress, lubricating grease only needs to be filled regularly, and the check ring avoids leakage of the lubricating grease.

In a specific embodiment, a groove is formed in the transmission tube, and the retainer ring is embedded in the groove.

In the implementation process, the retainer ring is installed by arranging the groove, so that the installation is firm, and the sealing performance is better.

In a particular embodiment, the drive tube and the connecting plate are of one-piece design.

In a specific embodiment, a protrusion is arranged at one end outside the transmission shaft, a threaded hole is formed in the protrusion, and the belt pulley is connected with the threaded hole through a locking bolt.

In the implementation process, the belt pulley is convenient to mount by arranging the threaded hole.

In a specific embodiment, the belt pulley is provided with a plurality of belt grooves.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a rear-end power output transmission mechanism of an engine provided by an embodiment of the application;

fig. 2 is a schematic structural view of a transmission shaft according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a connection plate according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a bolt head relief hole provided in an embodiment of the present application.

In the figure: 100-a power take-off assembly; 110-body; 120-a crankshaft; 121-grooves; 130-flywheel housing; 140-flywheel disc; 200-a power take-off transmission assembly; 210-a connecting plate; 211-a relief groove; 212-bolt head relief hole; 220-a transmission tube; 221-a groove; 230-a bearing member; 231-a retainer ring; 240-a drive shaft; 241-bulges; 2411-a threaded hole; 250-shaft sleeve; 251-a fastening bolt; 270-a pulley; 271-locking bolt; 272-strap groove.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, the present application provides an engine rear end power output transmission mechanism including a power output assembly 100 and a power output transmission assembly 200.

Referring to fig. 1, the power output assembly 100 includes a body 110, a crankshaft 120, a flywheel housing 130 and a flywheel panel 140, the crankshaft 120 rotates to extend out of the body 110, the flywheel housing 130 is fixedly connected to the outer side of the body 110, the flywheel housing 130 is bolted or welded to the body 110, the flywheel panel 140 is mounted at one end of the crankshaft 120, and the flywheel panel 140 is in clearance fit with the inner wall of the flywheel housing 130.

Referring to fig. 1, 2, 3 and 4, the power output transmission assembly 200 includes a connecting plate 210, a bearing member 230, a transmission shaft 240, a shaft sleeve 250 and a belt pulley 270, wherein one side of the connecting plate 210 is installed at one side of the flywheel housing 130, specifically, a recess 211 is formed at one side of the connecting plate 210, the flywheel disc 140 is in clearance fit with the inner wall of the recess 211, and a portion of the flywheel housing 130 is located in the recess 211 to rotate by forming the recess 211, thereby reducing the axial thickness to a certain extent and saving space, the connecting plate 210 is provided with a transmission pipe 220 in communication, the bearing member 230 is installed in the transmission pipe 220, the transmission shaft 240 is arranged in the bearing member 230 in a penetrating manner, specifically, the bearing member 230 is a double-row cylindrical roller bearing, the end of the bearing member 230 is provided with a retaining ring 231, the double-row cylindrical roller bearing is well stressed, only needs to be regularly filled with grease, the retaining ring prevents grease from leaking, specifically, the transmission pipe 220 is provided with a groove 221, the retainer ring 231 is embedded in the groove 221, the retainer ring 231 is installed by forming the groove 221, the installation is firm, the sealing performance is better, the shaft sleeve 250 is arranged in the crankshaft 120, specifically, the groove 121 is formed in the crankshaft 120, the shaft sleeve 250 is inserted in the groove 121, the shaft sleeve 250 is connected to the flywheel disc 140 and the crankshaft 120 through the fastening bolt 251, the crankshaft 120 and the flywheel disc 140 can be connected through the shaft sleeve 250 and the fastening bolt 251, the shaft sleeve 250 can also be connected with the transmission shaft 240, one end of the transmission shaft 240 is fixedly connected in the shaft sleeve 250, specifically, the connection mode of the transmission shaft 240 and the shaft sleeve 250 is spline connection, the synchronous rotation transmission consistency is ensured through the spline connection mode, the belt pulley 270 is fixedly connected to the other end of the transmission shaft 240, the belt pulley 270 is rotatably sleeved outside the transmission pipe 220, specifically, the protrusion 241 is arranged at one end outside the transmission shaft 240, and the protrusion 241 is integrally formed on the transmission shaft 240, the protrusion 241 is provided with a threaded hole 2411, the belt pulley 270 is connected with the threaded hole 2411 through a locking bolt 271, the installation of the belt pulley 270 is facilitated by the arrangement of the threaded hole 2411, and the belt pulley 270 is provided with a plurality of belt grooves 272.

In this embodiment, the connecting plate 210 is circular, the periphery of the connecting plate 210 is provided with a plurality of bolt head abdicating holes 212, and by forming the bolt head abdicating holes 212, when the connecting plate 210 and the flywheel housing 130 are connected by bolts, the bolts can be hidden in the holes, so as to avoid the trend of compact belts.

The working principle of the engine rear end power output transmission mechanism is as follows: it rotates to drive flywheel dish 140 and axle sleeve 250 through bent axle 120, axle sleeve 250 drives transmission shaft 240 transmission, transmission shaft 240 rotates smoothly under the support of double-row cylinder roller bearing, transmission shaft 240 drives belt pulley 270 and rotates, belt pulley 270 drives the belt rotation of cover establishing in belt groove 272, thereby on the external drive mechanism with the power output of engine, belt pulley 270 overlaps on transmission pipe 220 simultaneously, and be close to connecting plate 210, can reduce axial space, inside transmission shaft 240 lug connection to flywheel dish 140 and bent axle 120, the part is less, thereby the effectual flywheel chamber's that forms that has reduced connecting plate 210 and flywheel shell 130 combination thickness, thereby axial occupation space has been reduced on the whole, the uniformity of assembly has been guaranteed effectively.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A power output transmission mechanism at the rear end of an engine is characterized by comprising

The power output assembly (100) comprises a machine body (110), a crankshaft (120), a flywheel housing (130) and a flywheel disc (140), wherein the crankshaft (120) extends out of the machine body (110) in a rotating mode, the flywheel housing (130) is fixedly connected to the outer side of the machine body (110), the flywheel disc (140) is installed at one end of the crankshaft (120), and the flywheel disc (140) is in clearance fit with the inner wall of the flywheel housing (130);

power take off drive assembly (200), power take off drive assembly (200) is including connecting plate (210), bearing spare (230), transmission shaft (240), axle sleeve (250) and belt pulley (270), connecting plate (210) one side install in flywheel shell (130) one side, connecting plate (210) intercommunication is provided with transmission pipe (220), bearing spare (230) install in transmission pipe (220), transmission shaft (240) run through set up in bearing spare (230), axle sleeve (250) set up in bent axle (120), transmission shaft (240) one end fixed connection in axle sleeve (250), belt pulley (270) fixed connection in transmission shaft (240) the other end, belt pulley (270) rotate cup joint in transmission pipe (220) outside.

2. The engine rear end power output transmission mechanism as claimed in claim 1, characterized in that the crankshaft (120) is provided with a groove (121), the shaft sleeve (250) is inserted in the groove (121), and the shaft sleeve (250) is connected to the flywheel disc (140) and the crankshaft (120) through a fastening bolt (251).

3. An engine rear end power take off transmission as in claim 1, characterized in that the connection of the propeller shaft (240) and the sleeve (250) is a splined connection.

4. The engine rear end power output transmission mechanism as claimed in claim 1, characterized in that one side of the connecting plate (210) is provided with a relief groove (211), and the flywheel disc (140) is in clearance fit with the inner wall of the relief groove (211).

5. The engine rear end power output transmission mechanism according to claim 1, characterized in that the connecting plate (210) is circular, and a plurality of bolt head relief holes (212) are formed on the periphery of the connecting plate (210).

6. An engine rear end power take off transmission as in claim 1, characterized in that said bearing member (230) is a double row cylindrical roller bearing, and a retainer ring (231) is provided at the end of said bearing member (230).

7. The engine rear end power output transmission mechanism according to claim 6, characterized in that a groove (221) is formed in the transmission pipe (220), and the retainer ring (231) is embedded in the groove (221).

8. An engine rear end power take off transmission as in claim 1, characterized in that the transmission tube (220) and the connecting plate (210) are of one-piece design.

9. The engine rear end power output transmission mechanism as claimed in claim 1, characterized in that a protrusion (241) is arranged at one end of the transmission shaft (240), a threaded hole (2411) is formed in the protrusion (241), and the belt pulley (270) is connected with the threaded hole (2411) through a locking bolt (271).

10. The engine rear end power take off transmission as in claim 1, wherein said pulley (270) defines a plurality of belt grooves (272).