Engine with three-cavity dry clutch and vehicle

Abstract

The utility model relates to an engine of three-cavity dry clutch and vehicle, including transmission, transmission has main shaft, transmission includes speed change hub and set up the speed change input gear of main shaft, the speed change input gear is provided with auxiliary gearshift mechanism, the auxiliary gearshift mechanism includes control panel and drive subassembly, the control panel is provided with a contact switch used for detecting the position of the speed changing hub and controlling the driving piece to be started and stopped, the driving assembly drives the speed changer to conduct gear shifting, and the speed changer is provided with a lubricating and cooling oil channel communicated with the main shaft. According to the structure, the problem of lubrication of the gear inner hole on the main shaft is effectively solved, the gear shifting comfort under various working conditions is improved, the service life of the dry clutch is prolonged, and the service life of an engine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an engine and a vehicle with a three-chamber dry clutch. Background Art

[0002] A dry clutch refers to a clutch cooled by air. During use, it is required that the clutch can be engaged and disengaged with the power easily and freely, and work in a semi-clutch state for a short time without overheating. Since there is no resistance of engine oil, generally speaking, the dry clutch has a faster biting reaction and a greater biting force. Also, because there is no engine oil for cooling, generally, the dry clutch adopts an exposed way for heat dissipation.

[0003] Currently, the dry clutch cannot shift gears normally during shutdown, parking and driving.

[0004] A flywheel with cooling function blades, and at the same time the flywheel integrates the clutch function, and this mechanism has an abrasive self-cleaning function; relates to a structure that can shift gears normally during shutdown, parking and driving, that is, an auxiliary shift motor structure is provided circumferentially on the transmission input gear of the transmission, and the shift hub position signal is used to assist in shifting gears; this transmission has a special lubricating and cooling oil passage. This structure effectively solves the shift comfort under various working conditions, increases the service life of the dry clutch, and increases the service life of the engine. Summary of the Utility Model

[0005] In view of this, the utility model provides an engine with a three-chamber dry clutch; the second object of the utility model is to provide a vehicle including the above three-chamber dry clutch.

[0006] The engine with a three-chamber dry clutch provided by the utility model adopts the following technical scheme:

[0007] An engine with a three-chamber dry clutch includes a transmission, the transmission has a main shaft, the transmission includes a shift hub and a transmission input gear arranged on the main shaft, an auxiliary shift mechanism is arranged on the transmission input gear, the auxiliary shift mechanism includes a control disk and a driving component, the control disk has a contact switch for detecting the position of the shift hub and controlling the start and stop of the driving part, the driving component drives the transmission to shift gears, and the transmission is provided with a lubricating and cooling oil passage communicating with the main shaft.

[0008] Optionally, the driving component includes a shift hub driving motor, a reduction drive gear coaxially arranged on the motor shaft of the shift hub driving motor, and a reduction driven gear coaxially arranged at one end of the shift hub, the contact switch is arranged at one end of the shift hub away from the reduction driven gear, and the reduction drive gear meshes with the reduction driven gear.

[0009] Optionally, on one side of the control panel close to the speed change hub, a plurality of contact switches for controlling the start and stop of the speed change hub drive motor are evenly distributed along the circumference. At one end of the speed change hub close to the contact switch, there is a metal contact rod adapted to the switch contact. The inner end of the metal contact rod is elastically arranged in the speed change hub through a spring, and the outer end of the metal contact rod is supported on the contact switch. When the speed change hub rotates, the metal contact rod can contact any one of the contact switches and trigger the contact switch.

[0010] Optionally, it further includes a flywheel. The flywheel has a first contact surface in contact with the clutch friction plate. The flywheel is provided with a spline hole, and cooling air holes are arranged along the circumference of the spline hole.

[0011] Optionally, blades are arranged on the flywheel, and cooling air is generated by the blades during the rotation of the flywheel.

[0012] Optionally, an installation platform is arranged at the axis center of the flywheel, and a plurality of blades are inclinedly arranged along the circumference of the installation platform.

[0013] Optionally, the installation platform is a hexagonal frustum. The middle part of the hexagonal frustum is hollow and communicates with the spline hole. Six blades are arranged and are respectively arranged at the edges of the hexagonal frustum.

[0014] Optionally, the installation platform is a hexagonal frustum. The middle part of the hexagonal frustum is hollow and communicates with the spline hole. Six blades are arranged and are respectively arranged at the edges of the hexagonal frustum.

[0015] Optionally, it further includes a clutch pressure plate, and a second convex platform in contact with the clutch friction plate is arranged on the clutch pressure plate.

[0016] To achieve the above second object, the present invention further provides a vehicle, which includes any one of the above three-chamber dry clutches. Since the above three-chamber dry clutch has the above technical effects, the vehicle with this three-chamber dry clutch should also have corresponding technical effects.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects: This structure effectively solves the lubrication problem of the inner hole of the gear on the main shaft, improves the shifting comfort under various working conditions, increases the service life of the dry clutch, and increases the service life of the engine. Description of the Drawings

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of the flywheel according to an embodiment of the present utility model;

[0020] Figure 2 It is a side sectional view of the flywheel according to an embodiment of the present utility model;

[0021] Figure 3 It is a front view of the flywheel according to an embodiment of the present utility model;

[0022] Figure 4 It is a schematic diagram of the principle of the auxiliary shifting mechanism according to an embodiment of the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the contact switch according to an embodiment of the present utility model.

[0024] Reference numerals: 1, flywheel; 2, gear ring; 3, positioning pin; 4, spline hole; 5, blade; 6, guide groove; 7, cooling air hole; 8, control disk; 9, variable speed hub drive motor; 10, reduction drive gear; 11, reduction driven gear; 12, contact switch; 13, metal contact rod; 14, variable speed hub; 15, spring. Specific embodiments

[0025] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0026] The following combines the attached Figures 1-5 to further elaborate on the present utility model in detail.

[0027] An embodiment of the present utility model discloses an engine and a vehicle of a three - chamber dry clutch.

[0028] Referring to Figures 1-5 , an engine of a three - chamber dry clutch includes a transmission. The transmission includes a transmission input gear and a variable speed hub 14. An auxiliary shifting mechanism is provided on the transmission input gear. The auxiliary shifting mechanism includes a control disk 8 and a driving component. The control disk 8 has a contact switch 12 for detecting the position of the variable speed hub 14 and controlling the start and stop of the driving member. The driving component drives the transmission to shift gears. This structure effectively solves the lubrication problem of the inner hole of the gear on the main shaft, improves the shifting comfort under various working conditions, increases the service life of the dry clutch, and increases the service life of the engine.

[0029] The clutch can prevent the huge inertia of the vehicle from surging forward, avoid stalling caused by a sharp drop in the engine speed, and ensure a smooth start of the vehicle. In this embodiment, the clutch is a three-chamber dry clutch.

[0030] The clutch is installed between the engine and the transmission, and is a component of the vehicle drive train that is directly connected to the engine. The clutch is installed together with the flywheel of the engine crankshaft as a set, and is a component that cuts off and transmits power between the engine and the vehicle drive train.

[0031] In this embodiment, the transmission includes a main shaft and a countershaft that are parallel to each other. A transmission input gear is sleeved on the main shaft and rotates synchronously with the main shaft. The transmission input gear drives the main shaft to rotate synchronously. A transmission output gear is sleeved on the countershaft and rotates synchronously with the countershaft, that is, the transmission output gear drives the countershaft to rotate synchronously. The transmission is provided with a multi-gear transmission system, and its transmission system adopts the prior art. Further, the Chinese invention patent with the publication number CN118128866A is adopted, which will not be elaborated here one by one.

[0032] In this embodiment, the drive assembly includes a variable-speed hub drive motor 9, a reduction drive gear 10 coaxially arranged on the motor shaft of the variable-speed hub drive motor 9, and a reduction driven gear 11 coaxially arranged at one end of the variable-speed hub 14. A contact switch 12 is arranged at the end of the variable-speed hub 14 away from the reduction driven gear 11, and the reduction drive gear 10 meshes with the reduction driven gear 11.

[0033] In this embodiment, a plurality of contact switches 12 for controlling the start and stop of the variable-speed hub drive motor 9 are evenly distributed along the circumferential direction on one side of the control disk 8 close to the variable-speed hub 14. One end of the variable-speed hub 14 close to the contact switch 12 is provided with a metal contact rod 13 adapted to the switch contact. The inner end of the metal contact rod 13 is elastically arranged in the variable-speed hub 14 through a spring 15, and the outer end of the metal contact rod 13 is supported on the contact switch 12. When the variable-speed hub 14 rotates, the metal contact rod 13 can contact any one of the contact switches 12 and trigger the contact switch 12. Specifically, six contact switches 12 for controlling the start and stop of the variable-speed hub drive motor 9 are evenly distributed along the circumferential direction on one side of the control disk 8 close to the variable-speed hub 14.

[0034] When the metal contact rod 13 contacts any one of the contact switches 12, the contact switch 12 is triggered and the variable-speed hub 14 stops rotating; when the shift lever is toggled once, the variable-speed hub drive motor 9 starts, until the metal contact rod 13 of the variable-speed hub 14 contacts the next contact switch 12 (rotates 60°), the variable-speed hub drive motor 9 stops, and the variable-speed hub 14 stops rotating.

[0035] The shift sleeve of the transmission system is driven by an auxiliary gear shifting component to rotate relative to the adjacent reduction gear set, so as to shift into the corresponding gear as required, solving the problem that gear shifting cannot be performed in the parking state, and ensuring that the transmission system can shift gears smoothly in all states. Moreover, the rotation of the transmission hub 14 can control the movement of the shift fork of the transmission system to realize the gear shift of the transmission system. The structure is simple and ingenious, stable and reliable, with good smoothness, greatly reducing the wear between components, improving the service life, and at the same time, having extremely low requirements for the gear shift control algorithm, further improving the smoothness of gear shifting.

[0036] In this embodiment, the engine borrows the structure of the three-chamber separation method of the existing automobile technology, including the engine at the front, the dry clutch in the middle, the transmission at the rear, and other structures.

[0037] The transmission is provided with a lubricating and cooling oil passage, which communicates with the central hole of the main shaft to solve the lubrication problem of the inner hole of the transmission input gear on the main shaft, greatly reducing the wear between components and further improving the smoothness of gear shifting.

[0038] In order to further improve the smoothness of gear shifting and avoid gear shifting problems caused by overheating of the transmission, it also includes a flywheel 1. The flywheel 1 has a contact surface 1 in contact with the clutch friction plate. The flywheel 1 is provided with a spline hole 4, and cooling air holes 7 are provided along the circumferential direction of the spline hole 4.

[0039] Blades 5 are provided on the flywheel 1, and cooling air is generated by the blades 5 during the rotation of the flywheel 1.

[0040] An installation platform is provided at the axis of the flywheel 1, and a plurality of blades 5 are inclined along the circumferential direction of the installation platform.

[0041] The installation platform is a hexagonal prism, the middle of the hexagonal prism is hollow and communicates with the spline hole 4, and six blades 5 are provided and are respectively arranged at the edges of the hexagonal prism.

[0042] It also includes a clutch pressure plate, and a boss 2 in contact with the clutch friction plate is provided on the clutch pressure plate.

[0043] Cooling air holes 7 are provided along the circumferential direction of the spline hole 4, and blades 5 are provided on the flywheel 1. Cooling air is generated by the blades 5 during the rotation of the flywheel 1. The dry clutch is cooled by the cooling air generated by the blades 5 during the rotation of the flywheel 1, improving the cooling effect. It not only has a simple structure, convenient later maintenance, but also has a low manufacturing cost and is suitable for popularization.

[0044] In this embodiment, the flywheel 1 is a disc with a large moment of inertia and is installed on the rear flange of the engine crankshaft.

[0045] In this embodiment, a toothed ring 2 is provided on the outer edge of the flywheel 1 to achieve power transmission between the starter and the crankshaft and provide inertia for the engine. The flywheel 1 is installed at the tail of the crankshaft through a positioning pin 3, at the junction with the clutch. The positioning pin 3 of the flywheel 1 transmits the power of the engine from the crankshaft to other parts of the transmission system, ensuring accurate positioning of the flywheel 1 and the engine and avoiding offset and wobbling.

[0046] Specifically, there are 6 - 8 cooling air inlet holes around the spline hole 4 and corresponding blades 5 are arranged beside the spline hole 4. During the rotation of the flywheel 1, the blades 5 generate cooling air to dissipate heat from the dry clutch, improving the heat dissipation effect.

[0047] An installation platform is provided at the axis of the flywheel 1. A plurality of blades 5 are inclinedly arranged along the circumferential direction of the installation platform. The inclined arrangement forms a structure similar to a marine propeller. Adjacent blades 5 divide each cooling air inlet hole, effectively ensuring the air inlet efficiency of the cooling air inlet hole and improving the heat dissipation effect.

[0048] In this embodiment, the installation platform is a hexagonal frustum. The middle of the hexagonal frustum is hollow and communicates with the spline hole 4. Six blades 5 are provided and are respectively arranged at the edges of the hexagonal frustum.

[0049] In this embodiment, the flywheel 1 is provided with a first boss. The first contact surface is located at the top of the first boss. The setting of the first boss makes the plane position higher than the surrounding planes, increasing the heat dissipation area and further improving the heat dissipation effect of the dry clutch.

[0050] In this embodiment, a clutch pressure plate is further included. The clutch pressure plate is provided with a second boss that contacts the clutch friction plate.

[0051] In this embodiment, a housing is further included. An air inlet and an air outlet are provided on the housing. The housing houses a clutch friction plate, a clutch pressure plate, the flywheel 1 and other related components, and these components cooperate together to ensure smooth power transmission.

[0052] In this embodiment, a water leakage port is provided at the bottom of the housing for draining the accumulated water inside the housing, effectively ensuring the stability of the flywheel 1 and its components.

[0053] The present utility model also provides a vehicle, which includes the above - mentioned three - chamber dry clutch. Since this vehicle adopts all the above technical solutions, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.

[0054] In this article, specific examples are used to elaborate on the principle and implementation of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. The above is only the preferred implementation mode of the present utility model. It should be noted that due to the limited nature of written expression and objectively existing infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present utility model.

Claims

1. An engine and a vehicle with a three-chamber dry clutch, characterized in that: The invention comprises a transmission having a main shaft, the transmission comprising a speed hub and a speed input gear arranged on the main shaft, the speed input gear is provided with an auxiliary shifting mechanism, the auxiliary shifting mechanism comprises a control disk and a driving assembly, the control disk has a contact switch for detecting the position of the speed hub and controlling the start and stop of the driving member, the driving assembly drives the transmission to shift gears, and the transmission is provided with a lubrication and cooling oil passage communicating with the main shaft.

2. The engine and vehicle with a three-chamber dry clutch according to claim 1, characterized in that: The drive assembly includes a speed hub drive motor, a reduction driving gear coaxially arranged on the motor shaft of the speed hub drive motor, and a reduction driven gear coaxially arranged at one end of the speed hub. The contact switch is arranged at the end of the speed hub away from the reduction driven gear, and the reduction driving gear is meshed with the reduction driven gear.

3. The engine and vehicle with a three-chamber dry clutch according to claim 2, characterized in that: A plurality of contact switches for controlling the start and stop of the speed hub driving motor are evenly distributed along the circumferential direction on one side of the control disk close to the speed hub. A metal feeler rod matched with the switch contact is provided at one end of the speed hub close to the contact switch. The inner end of the metal feeler rod is elastically arranged on the speed hub through a spring, and the outer end of the metal feeler rod is supported on the contact switch. When the speed hub rotates, the metal feeler rod can contact any contact switch and trigger the contact switch.

4. The engine and vehicle with a three-chamber dry clutch according to claim 1, characterized in that: It also includes a flywheel, which has a contact surface 1 that contacts the clutch friction plate, and the flywheel is provided with a spline hole, and the spline hole is provided with cooling air holes along the circumferential direction.

5. The engine and vehicle with a three-chamber dry clutch according to claim 4, characterized in that: The flywheel is provided with blades, and the blades generate cooling wind during the rotation of the flywheel.

6. The engine and vehicle with a three-chamber dry clutch according to claim 5, characterized in that: The flywheel axis is provided with a mounting platform, and a plurality of blades are arranged obliquely along the circumferential direction of the mounting platform.

7. The engine and vehicle with a three-chamber dry clutch according to claim 6, characterized in that: The mounting platform is a hexagonal platform, the middle part of which is hollow and communicates with the spline hole, and six blades are arranged respectively at the corners of the hexagonal platform.

8. The engine and vehicle with a three-chamber dry clutch according to claim 1, characterized in that: The transmission is provided with a lubrication and cooling oil passage.

9. The engine and vehicle with a three-chamber dry clutch according to claim 1, characterized in that: It also includes a clutch pressure plate, on which a boss 2 is provided for contacting the clutch friction plate.

10. A vehicle, characterized in that: The vehicle is equipped with a three-chamber dry clutch as described in any one of claims 1-7.

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