Motor tricycle engine

Abstract

The utility model discloses a motor tricycle engine which comprises a box body, an oil storage cavity is arranged at the bottom of the box body, an oil inlet and an oil pump communicated with the oil storage cavity are arranged on the box body, a first flow dividing cavity communicated with an oil outlet of the oil pump is arranged on the box body, and a power output shaft is installed on the box body. A bearing used for supporting the power output shaft to rotate is arranged on the box body, a bearing lubricating cavity is formed in the side, away from the input end of the output shaft, of the bearing on the box body, a first engine oil cavity communicated with the bearing lubricating cavity is formed in the box body, and the first engine oil cavity is communicated with the first flow dividing cavity. The power output shaft is located on the side, away from the bearing, of the bearing lubricating cavity and is in sealing fit with the box. According to the scheme, the problem that the power output shaft of the engine needs to be frequently maintained due to insufficient lubrication is solved.

Description

Technical Field

[0001] The utility model relates to a three-wheeled motorcycle engine. Background Art

[0002] The engine of a three-wheeled motorcycle stores oil inside, which is transported to the cylinder head by an oil pump and oil channels to lubricate and cool the components inside the cylinder head. The crankshaft, connecting rod, transmission gears and other components of the engine are mainly splash-lubricated by the oil splashed when the components rotate.

[0003] Chinese patent document CN117072277A discloses an engine assembly and a motorcycle, comprising: a crankcase, the crankcase is formed with a storage space; an oil pump, the oil pump is at least partially arranged in the storage space, and the oil pump includes an inner cavity; a transmission gear set, the transmission gear set is installed in the storage space, and the transmission gear set is at least partially located above the oil pump; an oil pump cover, the oil pump cover is provided with a vent hole, one end of the vent hole is connected to the inner cavity, and the end of the vent hole away from the inner cavity is arranged toward the transmission gear set and is connected to the storage space. The engine assembly in the prior art has a vent hole on the oil pump cover. When the engine assembly is maintained and oiled, the vent hole can help the oil pump to exhaust quickly, shorten the exhaust time, and quickly establish oil pressure to transport the oil to various parts of the engine assembly that need lubrication, effectively avoiding the failure of the oil pump due to poor exhaust during maintenance and oiling, thereby increasing the service life of the engine assembly. In addition, the setting of the vent hole can also spray the oil from the oil pump onto the transmission gear set to lubricate and cool the transmission gear set, reduce the wear of the gear combination, reduce the noise generated by meshing slip, and increase the service life and durability of the transmission gear set.

[0004] In the above-mentioned prior art solution, the lubrication effect of the gear set is enhanced by opening a vent hole on the oil pump cover to directly spray oil to the transmission gear set. However, for some parts such as the power output shaft that are far away from the oil pump and easily blocked, splash lubrication is still the main method, which causes the parts to wear too quickly and requires frequent maintenance of the engine, thereby affecting the reliability of the engine. Utility Model Content

[0005] The utility model aims to provide a three-wheeled motorcycle engine to solve the problem that the power output shaft of the engine is insufficiently lubricated and needs frequent maintenance.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a three-wheeled motorcycle engine, including a casing, an oil storage chamber is arranged at the bottom of the casing, an oil pump whose oil inlet is connected to the oil storage chamber is arranged on the casing, a first diversion chamber connected to the oil outlet of the oil pump is arranged on the casing, a power output shaft is installed on the casing, a bearing for supporting the rotation of the power output shaft is arranged on the casing, a bearing lubrication chamber is arranged on the side of the casing located away from the input end of the bearing of the output shaft, a first oil chamber connected to the bearing lubrication chamber is arranged on the casing, the first oil chamber is connected to the first diversion chamber, and the power output shaft is located on the side of the bearing lubrication chamber away from the bearing and is sealed with the casing.

[0007] Preferably, the position where the first diverter chamber communicates with the first engine oil chamber is located at the top of the first diverter chamber.

[0008] Preferably, the bearing is a deep groove ball bearing.

[0009] Preferably, the power output shaft and the housing are sealed with a double-lip seal.

[0010] Preferably, the input end of the power output shaft is connected with a bevel gear, and the housing is provided with a second oil chamber, the second oil chamber is connected with the first oil chamber, and the second oil chamber is provided with an oil injection hole at the joint surface facing the bevel gear.

[0011] Preferably, the second oil chamber is located above the bevel gear.

[0012] Preferably, the bottom of the first diversion chamber is communicated with the oil outlet of the oil pump.

[0013] Preferably, the oil pump is connected to the crankshaft of the engine via a gear set, so that the oil pump can obtain power to work.

[0014] The utility model has the following beneficial effects:

[0015] 1. During operation, the oil pump delivers the oil in the oil storage chamber to the first diverter chamber, and then the oil flows from the first diverter chamber into the first oil chamber under pressure. The oil in the first oil chamber enters the bearing lubrication chamber under pressure and flows out through the bearing retainer, so that the oil lubricates the bearing to ensure the lubrication effect of the bearing. At the same time, when the oil flows out through the bearing, it can also take away the heat of the bearing, thereby cooling the bearing and avoiding overheating of the bearing and affecting the lubrication effect of the oil, thereby reducing the problem of frequent maintenance of the engine due to insufficient lubrication of the power output shaft.

[0016] 2. The top of the first diverter chamber is connected to the first oil chamber, so that a large amount of oil is still retained in the first diverter chamber after the engine is shut down, so that when the engine is started again, the oil pump can quickly fill the first diverter chamber and the oil can quickly reach the parts that need lubrication, thereby avoiding the accelerated wear caused by insufficient lubrication due to the long oil flow time when the engine is started.

[0017] 3. By setting the second oil chamber and the oil injection hole, the oil sprayed from the oil injection hole can just lubricate the bevel gear, especially when the output power of the power output shaft is high, which can effectively improve the working condition of the bevel gear at the input end of the power output shaft, thereby avoiding the bevel gear from being damaged due to excessive wear.

[0018] 4. The utility model can improve the lubrication effect of bearings and bevel gears. Compared with the splash lubrication method, the service life of bearings and bevel gears is extended by at least three times. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of an embodiment of a three-wheeled motorcycle engine of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the middle right box;

[0021] Figure 3 for Figure 1 Axial view of the middle case along the power output shaft;

[0022] Figure 4 for Figure 2 Schematic diagram of the connection between the first oil chamber and the first diversion chamber. DETAILED DESCRIPTION

[0023] The following is further described in detail through specific implementation methods:

[0024] The figure marks in the drawings of the specification include: oil pump 1, gear set 2, crankshaft 3, first oil chamber 4, bearing 5, bearing seat 6, bearing lubrication chamber 7, double lip seal 8, power output shaft 9, right case 10, first diversion chamber 11, through hole 12, oil storage chamber 13, left case 14, second oil chamber 15, oil injection hole 16, bevel gear 17.

[0025] The embodiment is basically as shown in the attached Figures 1 to 4As shown: a three-wheeled motorcycle engine, including a housing, an oil storage chamber 13 is provided at the bottom of the housing, and an oil pump 1 whose oil inlet is connected to the oil storage chamber 13 is provided on the housing. The oil pump 1 is connected to the crankshaft 3 of the engine through a gear set 2, so that the crankshaft 3 drives the oil pump 1 to operate through the gear set 2. In this embodiment, in order to facilitate processing, the housing is formed by buckling a left housing 14 and a right housing 10, and the oil pump 1 is installed on the right housing 10.

[0026] The housing is provided with a first diverter chamber 11 connected to the oil outlet of the oil pump 1, and part of the oil in the first diverter chamber 11 will be used to lubricate engine cylinder heads and other components. In the present embodiment, the first diverter chamber 11 is located on the right housing 10. In the present embodiment, it is preferred that the bottom of the first diverter chamber 11 is connected to the oil outlet of the oil pump 1, so as to facilitate the rapid filling of the first diverter chamber 11 with oil. A power output shaft 9 is installed on the housing, and the power output shaft 9 is used to output the power generated by the crankshaft 3 of the engine to the outside of the engine. The housing is provided with a bearing 5 for supporting the rotation of the power output shaft 9. In the present embodiment, the bearing 5 is preferably a deep groove ball bearing 5.

[0027] A bearing lubrication chamber 7 is provided on the housing at one side of the bearing 5 away from the input end of the output shaft, and a first oil chamber 4 is provided on the housing to communicate with the bearing lubrication chamber 7. The first oil chamber 4 is communicated with the first diverter chamber 11. In this embodiment, the position where the first diverter chamber 11 communicates with the first oil chamber 4 is located at the top of the first diverter chamber 11, specifically, the first diverter chamber 11 is communicated with the first oil chamber 4 through a through hole 12 provided at the top. In this embodiment, the bearing lubrication chamber 7 is located on the bearing 5 seat on the right housing 10, and the first oil chamber 4 is communicated with the first diverter chamber 11 by providing an oil passage on the right housing 10. The power output shaft 9 is located on the side of the bearing lubrication chamber 7 away from the bearing 5 and is sealed with the housing. In this embodiment, the power output shaft 9 is sealed with the bearing 5 seat of the right housing 10 by a double lip seal 8, so that the oil in the bearing lubrication chamber 7 can only flow in the direction close to the bearing 5 but not in the direction away from the bearing 5.

[0028] The input end of the power output shaft 9 is connected with a bevel gear 17, and a second oil chamber 15 is provided on the housing, the second oil chamber 15 is communicated with the first oil chamber 4, and the second oil chamber 15 is provided with an oil injection hole 16 at the joint surface facing the bevel gear 17. In this embodiment, the second oil chamber 15 is provided on the left housing 14, and the second oil chamber 15 is communicated through the oil through hole on the sealing gasket between the left and right housings 10. The second oil chamber 15 is located above the bevel gear 17, so that the oil injection hole 16 is located directly above the joint surface of the bevel gear 17, so that the oil can be better dropped on the joint surface of the bevel gear 17 after being sprayed from the oil injection hole 16.

[0029] The specific implementation process is as follows:

[0030] Figure 1 , Figure 2 and Figure 3 The direction indicated by the middle arrow is the flow direction of the engine oil. When working, the engine oil pump 1 delivers the engine oil in the oil storage chamber 13 to the first diverter chamber 11, and then the engine oil flows from the first diverter chamber 11 into the first engine oil chamber 4 under pressure. The engine oil in the first engine oil chamber 4 enters the bearing lubrication chamber 7 under pressure and flows out through the retainer of the bearing 5 and gathers in the oil storage chamber 13, so that the engine oil lubricates the bearing 5 to ensure the lubrication effect of the bearing 5. At the same time, when the engine oil flows out through the bearing 5, it can also take away the heat of the bearing 5, thereby realizing cooling of the bearing 5 and avoiding overheating of the bearing 5 and affecting the lubrication effect of the engine oil. Through the setting of the second engine oil chamber 15 and the oil injection hole 16, the engine oil sprayed from the oil injection hole 16 can just lubricate the bevel gear 17, especially when the output power of the power output shaft 9 is high, the working state of the bevel gear 17 at the input end of the power output shaft 9 can be effectively improved, thereby avoiding excessive wear and damage of the bevel gear 17.

[0031] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A three-wheeled motorcycle engine, comprising a housing, an oil storage chamber is provided at the bottom of the housing, an oil pump is provided on the housing, an oil inlet is connected to the oil storage chamber, and a first flow distribution chamber is provided on the housing, which is connected to the oil outlet of the oil pump, characterized in that: A power output shaft is installed on the housing, a bearing for supporting the rotation of the power output shaft is arranged on the housing, a bearing lubrication cavity is arranged on the housing at a side of the bearing away from the input end of the output shaft, a first oil cavity connected with the bearing lubrication cavity is arranged on the housing, the first oil cavity is connected with the first diversion cavity, and the power output shaft is located on a side of the bearing lubrication cavity away from the bearing and is sealed with the housing.

2. A three-wheeled motorcycle engine according to claim 1, characterized in that: The position where the first flow-dividing chamber communicates with the first oil chamber is located at the top of the first flow-dividing chamber.

3. A three-wheeled motorcycle engine according to claim 2, characterized in that: The bearing is a deep groove ball bearing.

4. A three-wheeled motorcycle engine according to claim 3, characterized in that: The power output shaft and the housing are sealed with each other through a double-lip seal.

5. A three-wheeled motorcycle engine according to any one of claims 1 to 4, characterized in that: The input end of the power output shaft is connected with a bevel gear, and the housing is provided with a second oil chamber, which is communicated with the first oil chamber, and the second oil chamber is provided with an oil injection hole at the joint surface facing the bevel gear.

6. A three-wheeled motorcycle engine according to claim 5, characterized in that: The second oil chamber is located above the bevel gear.

7. A three-wheeled motorcycle engine according to claim 6, characterized in that: The bottom of the first flow distribution chamber is communicated with the oil outlet of the oil pump.

8. A three-wheeled motorcycle engine according to claim 7, characterized in that: The oil pump is connected to the crankshaft of the engine via a gear set.

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