Dry-type clutch engine of tricycle

Abstract

The utility model discloses a tricycle dry type clutch engine which comprises a box body, and a crankshaft is rotationally connected to the box body. The dry clutch is in transmission connection with the crankshaft; the dry clutch comprises a dry clutch flywheel, a dry clutch disc, a pressing disc, a pressing mechanism and a clutch cover, the dry clutch disc is arranged between the dry clutch flywheel and the pressing disc, and the pressing mechanism is used for driving the pressing disc and the dry clutch flywheel to press the dry clutch disc. The dry clutch further comprises a hydraulic driving mechanism used for driving the pressure plate to be separated. According to the scheme, the problem that in the prior art, clutch operation of a dry type clutch engine of a tricycle is strenuous is solved.

Description

Technical Field

[0001] The utility model relates to a motorcycle engine, in particular to a tricycle dry clutch engine. Background Art

[0002] The dry clutch engine of a tricycle generally uses a single-cylinder internal combustion engine as power, and uses a dry clutch to control the on and off of the output power. It has the characteristics of reliable operation and high speed.

[0003] Chinese patent document CN210738690U discloses an engine, including a crankcase assembly; the crankcase assembly includes a crankshaft, a crankcase body and a dry clutch for outputting crankshaft power, the dry clutch having a clutch flywheel; the crankcase body is provided with an axle seat hole, the clutch flywheel is transmission-matchedly arranged on the crankshaft and is provided with a flywheel journal, the inner circle of the flywheel journal forms a seal with the crankshaft in the axial direction, and the outer circle forms a rotating seal with the axle seat hole in the axial direction. The prior art forms a seal in the axial direction between the clutch flywheel and the crankshaft and between the clutch flywheel and the crankcase body respectively, so as to isolate the lubricating oil in the crankcase body, which is beneficial to avoid the axial leakage of the lubricating oil in the crankcase body, and the clutch flywheel, which is sleeved on the crankshaft, passes through the crankcase body and performs axial limiting to realize the axial movement assembly of the dry clutch toward the axle seat side, which is beneficial to shorten the axial length of the crankshaft, and shorten the axial size of the engine, so as to make the structure of the engine more compact to avoid space waste.

[0004] The above-mentioned engines generally use a mechanical connecting rod group when performing clutch operation, which makes the operator more laborious when performing clutch operation and affects the driving experience. Utility Model Content

[0005] The utility model aims to provide a dry clutch engine for a tricycle, so as to solve the problem that the clutch operation of the dry clutch engine for a tricycle in the prior art is relatively laborious.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a three-wheeled vehicle dry clutch engine, including a housing, on which a crankshaft is rotatably connected; and also including a dry clutch that is transmission-connected to the crankshaft; the dry clutch includes a dry clutch flywheel, a dry clutch plate, a pressure plate, a clamping mechanism and a clutch cover, the dry clutch plate is arranged between the dry clutch flywheel and the pressure plate, the clamping mechanism is used to drive the pressure plate and the dry clutch flywheel to clamp the dry clutch plate, and the dry clutch also includes a hydraulic drive mechanism for driving the pressure plate to separate. With such a setting, the dry clutch is controlled by the hydraulic drive mechanism to realize the on-off of power, which is conducive to reducing the operator's operating burden and making the operation easier.

[0007] Preferably, the hydraulic driving mechanism includes a hydraulic piston. A piston chamber for the movement of the hydraulic piston is provided on the clutch cover. An oil passage communicating with the piston chamber is provided on the clutch cover. The moving end of the hydraulic piston is in linkage cooperation with the pressing mechanism. With such a setting, by providing a piston chamber and an oil passage on the clutch cover, the clutch cover is fully utilized, which is beneficial to improving the working stability of the hydraulic piston and simplifying the overall structure of the machine.

[0008] Preferably, the moving end of the hydraulic piston is connected to the pressing mechanism through a release bearing. With such a setting, it is beneficial to reduce the wear between the hydraulic piston and the pressing mechanism, thereby extending the service life.

[0009] Preferably, a reset mechanism for the release bearing is provided on the clutch cover. With such a setting, a separate reset mechanism is used to reset the release bearing in a timely manner, which is beneficial to improving the operation sensitivity.

[0010] Preferably, the reset mechanism includes a bearing pressure plate connected to the release bearing. The bearing pressure plate is slidably connected with a guide rod. The guide rod is fixedly connected to the clutch cover. The bearing pressure plate is connected with a return spring. With such a setting, the structure of the reset mechanism is simple and reliable, which is beneficial to improving the working reliability.

[0011] Preferably, the guide rod is threadedly connected to the clutch cover, and the return spring is sleeved on the outside of the guide rod. With such a setting, it is beneficial to the installation of the reset mechanism.

[0012] Preferably, an exhaust screw communicating with the oil passage is connected to the clutch cover, and the exhaust screw is located at the top of the oil passage. With such a setting, it is convenient to reduce air by utilizing the gravity characteristic of the hydraulic oil in the oil passage and ensure the hydraulic effect.

[0013] The utility model has the following beneficial effects:

[0014] Adopting this solution makes it easier for the operator to control the dry clutch engine of the tricycle, thereby reducing the operation difficulty. And the structure is simple, which is convenient for maintenance operation while improving the overall reliability of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of an embodiment of a dry clutch engine for a tricycle according to the utility model;

[0016] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the dry clutch in

[0017] Figure 3 a three-dimensional schematic diagram of the dry clutch engine for a tricycle according to the utility model. Detailed implementation manners

[0018] The following is a further detailed description through specific implementation manners:

[0019] The reference numerals in the accompanying drawings of the specification include: housing 1, crankshaft 2, dry clutch flywheel 3, dry clutch disc 4, pressure plate 5, pressing mechanism 6, return spring 7, guide rod 8, bearing retainer 9, release bearing 10, clutch cover 11, hydraulic piston 12, oil passage 13, oil inlet bolt 14, and exhaust screw 15.

[0020] The embodiment is basically as shown in Figure 1 , Figure 2 and Figure 3 : A dry clutch engine for a tricycle includes a housing 1, and a crankshaft 2 is rotatably connected to the housing 1; it further includes a dry clutch that is drivingly connected to the crankshaft 2. In this embodiment, the crankshaft 2 and the dry clutch are drivingly connected through a reduction gear set. The dry clutch includes a dry clutch flywheel 3, a dry clutch disc 4, a pressure plate 5, a pressing mechanism 6, and a clutch cover 11. The dry clutch disc 4 is disposed between the dry clutch flywheel 3 and the pressure plate 5, and the pressing mechanism 6 is used to drive the pressure plate 5 and the dry clutch flywheel 3 to clamp the dry clutch disc 4. In this embodiment, the dry clutch flywheel 3 is fixedly connected to the reduction driven gear of the reduction gear set, the pressing mechanism 6 is fixedly connected to the dry clutch flywheel 3, and the pressure plate 5 clamps and holds the dry clutch disc 4 together with the dry clutch flywheel 3 under the elastic force of the pressing mechanism 6.

[0021] In this embodiment, the dry clutch further includes a hydraulic driving mechanism for driving the separation of the pressure plate 5. The hydraulic driving mechanism includes a hydraulic piston 12. A piston cavity for the movement of the hydraulic piston 12 is provided on the clutch cover 11. An oil passage 13 communicating with the piston cavity is provided on the clutch cover 11. The moving end of the hydraulic piston 12 is in linkage cooperation with the pressing mechanism 6. In this embodiment, the moving end of the hydraulic piston 12 is connected to the pressing mechanism 6 through a release bearing 10, so as to reduce wear when the pressing mechanism 6 and the hydraulic piston 12 rotate relative to each other. In this embodiment, two hydraulic pistons 12 are provided and are symmetrically distributed along the rotation axis of the dry clutch. An exhaust screw 15 communicating with the oil passage 13 is connected to the clutch cover 11, and the exhaust screw 15 is located at the top of the oil passage 13. An oil inlet bolt 14 is provided at the oil inlet end of the oil passage 13 on the clutch cover 11.

[0022] In this embodiment, a reset mechanism for resetting the release bearing 10 is provided on the clutch cover 11. The reset mechanism includes a bearing pressure plate 9 connected to the release bearing 10. The bearing pressure plate 9 is slidably connected with a guide rod 8. The guide rod 8 is fixedly connected to the clutch cover 11. The bearing pressure plate 9 is connected with a return spring 7. In this embodiment, the guide rod 8 is threadedly connected to the clutch cover 11, and the return spring 7 is sleeved outside the guide rod 8. In this embodiment, the return spring 7 is preferably a helical compression spring. One end of the return spring 7 abuts against the bearing pressure plate 9, and a limit plate that abuts against the other end of the return spring 7 is connected to the guide rod 8. The elastic force of the return spring 7 can be used to reset the bearing pressure plate 9 after it moves.

[0023] The specific implementation process is as follows: Under normal conditions, the hydraulic piston 12 does not apply a force to the pressing mechanism 6. At this time, the pressure plate 5 of the dry clutch, under the action of the pressing mechanism 6, together with the dry clutch flywheel 3, tightly clamps the dry clutch disc 4, so that the power transmitted by the crankshaft 2 through the reduction gear set is transmitted to the dry clutch disc 4 through the dry clutch flywheel 3, and then transmitted to the transmission shaft connected to the dry clutch through the dry clutch disc 4. When it is necessary to disconnect the output power of the engine, by controlling the hydraulic oil to enter the oil passage 13 of the clutch cover 11, the hydraulic oil enters the piston chamber and pushes the hydraulic piston 12 to move, so that the hydraulic piston 12 pushes the release bearing 10 to move, and the release bearing 10 pushes the pressing mechanism 6 to move to remove the pressure applied to the pressure plate 5, so that the dry clutch disc 4 loses the clamping effect between the pressure plate 5 and the dry clutch flywheel 3 and can rotate relative to the dry clutch flywheel 3, and the power transmission between the dry clutch flywheel 3 and the dry clutch disc 4 is disconnected. By adopting this solution, it is more labor-saving for the operator to control the dry clutch engine of the tricycle, thereby reducing the operation difficulty. And the structure is simple, which improves the reliability of the whole machine and is also convenient for maintenance operations.

[0024] The above are only embodiments of the present invention. Common general knowledge such as specific structures and characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A dry clutch engine for a tricycle, comprising a housing, on which a crankshaft is rotatably connected; and further comprising a dry clutch in driving connection with the crankshaft; the dry clutch comprises a dry clutch flywheel, a dry clutch plate, a pressure plate, a clamping mechanism and a clutch cover, the dry clutch plate being arranged between the dry clutch flywheel and the pressure plate, the clamping mechanism being used to drive the pressure plate and the dry clutch flywheel to clamp the dry clutch plate, characterized in that: The dry clutch also includes a hydraulic drive mechanism for driving the pressure plate to separate.

2. A three-wheeled vehicle dry clutch engine according to claim 1, characterized in that: The hydraulic drive mechanism includes a hydraulic piston. The clutch cover is provided with a piston cavity for the hydraulic piston to move. The clutch cover is provided with an oil passage connected with the piston cavity. The moving end of the hydraulic piston cooperates with the clamping mechanism.

3. A three-wheeled vehicle dry clutch engine according to claim 2, characterized in that: The moving end of the hydraulic piston is connected to the clamping mechanism via a release bearing.

4. A three-wheeled vehicle dry clutch engine according to claim 3, characterized in that: The clutch cover is provided with a reset mechanism for resetting the release bearing.

5. A three-wheeled vehicle dry clutch engine according to claim 4, characterized in that: The reset mechanism comprises a bearing pressure plate connected to the release bearing, the bearing pressure plate is slidably connected to a guide rod, the guide rod is statically connected to the clutch cover, and the bearing pressure plate is connected to a reset spring.

6. A three-wheeled vehicle dry clutch engine according to claim 5, characterized in that: The guide rod is threadedly connected to the clutch cover, and the return spring is sleeved on the outer side of the guide rod.

7. A three-wheeled vehicle dry clutch engine according to claim 6, characterized in that: The clutch cover is connected with an exhaust screw which is in communication with the oil passage, and the exhaust screw is located at the top of the oil passage.

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