CN112343933A - Anti-clamping stagnation strengthened engagement clutch for heavy-load motor tricycle - Google Patents
Anti-clamping stagnation strengthened engagement clutch for heavy-load motor tricycle Download PDFInfo
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- CN112343933A CN112343933A CN202010923816.7A CN202010923816A CN112343933A CN 112343933 A CN112343933 A CN 112343933A CN 202010923816 A CN202010923816 A CN 202010923816A CN 112343933 A CN112343933 A CN 112343933A
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- lubricating oil
- pressure plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/06—Combinations of engines with mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses an anti-clamping stagnation strengthened clutch for a heavy-duty motor tricycle, which comprises a pressure plate, a friction plate assembly and a central sleeve, wherein the pressure plate is arranged on the pressure plate; a clearance for relative rotation in the circumferential direction is formed between the pressure plate and the central sleeve, and the pressure plate and the central sleeve are meshed through an inclined plane meshing pair; when the clutch is connected and driven, the pressure plate rotates relatively relative to the center sleeve in the driving direction, and the inclined surface meshing pair generates axial component force for pulling the pressure plate and the center sleeve close.
Description
Technical Field
The invention relates to an engine component or an accessory component, in particular to an anti-clamping stagnation strengthened engagement clutch for a heavy-duty motor tricycle.
Background
The clutch is located between the engine and the gearbox, is a component in the transmission system directly connected with the engine, and is a transmission mechanism used for transmitting or cutting off power between the engine and the gearbox.
For small-sized locomotives, such as motor tricycles, the engine has limited space and limited clutch volume, so that the transmitted torque is limited, if a larger torque needs to be transmitted, the installation space needs to be enlarged or the force value of a clutch main spring needs to be increased so as to increase the reserve coefficient of the clutch, thereby causing a larger clutch operating force value, and particularly for heavy-duty motor tricycles, a larger operating force is needed for manual operation; in order to reduce the occupied space, reduce the overall weight and enable the manual operation to be smooth and simple, the clutch is required to have a smaller spring reserve coefficient and a smaller volume, and the contradiction exists between the clutch and a large torque transmission force value; meanwhile, the external spline of the central sleeve is passively stressed when the clutch transmits power, the requirement on the strength of the external spline of the central sleeve is higher when the transmission torque is larger, and the external spline of the central sleeve fails due to insufficient torque matching caused by long-time large-torque transmission; the prior art clutch has long sliding wear time when in engagement, and ablation occurs between friction plates, but in practice, the ablation accounts for a large proportion of common faults of the clutch.
Based on the problems, the existing clutch needs to be improved, the clutch can be ensured to transmit larger torque under the condition of ensuring that the volume of the clutch is not increased, the reserve coefficient of the clutch is increased, the control force value is not increased, the series problems existing in the process of sliding before engagement are solved, and the service life of the clutch is prolonged; the series of problems caused by the reserve coefficient during sliding and grinding are solved, meanwhile, the engagement is rapid and smooth in the process, no clamping stagnation occurs, the overall performance of the clutch is improved, and the running safety of the vehicle is guaranteed.
Disclosure of Invention
In view of the above, the invention provides an anti-jamming strengthened engagement clutch for a heavy-duty motor tricycle, which can ensure that the clutch can transmit larger torque without increasing the volume of the clutch, increase the reserve coefficient of the clutch, not increase the control force value, solve the series problems existing in sliding before engagement and prolong the service life of the clutch; the series of problems caused by the reserve coefficient during sliding and grinding are solved, meanwhile, the engagement is rapid and smooth in the process, no clamping stagnation occurs, the overall performance of the clutch is improved, and the running safety of the vehicle is guaranteed.
The invention relates to an anti-clamping stagnation strengthened clutch for a heavy-duty motor tricycle, which comprises a pressure plate, a friction plate assembly and a central sleeve, wherein the pressure plate is arranged on the pressure plate; the pressure plate and the central sleeve are provided with a clearance which rotates relatively in the circumferential direction, and the pressure plate and the central sleeve are meshed through an inclined plane meshing pair; when the clutch is engaged for transmission, the pressure plate rotates relative to the central sleeve in the transmission direction, and the inclined surface meshing pair generates axial component force for pulling the pressure plate and the central sleeve close; the clutch further includes a ramp lubrication channel for directing lubrication to the ramp engaging pair;
the clutch also comprises an outer cover, a pressure plate, a central sleeve, a lifting plate, a main spring, a friction plate assembly (the driving friction plate is arranged on the outer cover, the driven friction plate is arranged on the central sleeve) and the like, wherein the pressure plate or the central sleeve is provided with a spring seat sinking groove for accommodating the main spring, the central sleeve or the pressure plate is correspondingly provided with a spring guide pillar, the spring guide pillar passes through a through hole arranged at the bottom of the spring seat sinking groove, the lifting plate is basically and fixedly arranged at the end part of the spring guide pillar through a bolt, one end of the main spring props against the lifting plate, the other end of the main spring props against the bottom of the spring seat sinking groove, so that pre-tightening force for pressing the pressure plate and the central sleeve is formed; when the clutch needs to be separated, the lifting plate is driven by external force to compress the spring and drive the spring guide post to drive the pressing plate or the central sleeve to move so as to separate and compress the pressing plate and the central sleeve, so that the clutch is separated and separated from transmission; the mechanical structure of the clutch also has other auxiliary components, which belong to the prior art and are not described herein;
the clearance which rotates relatively in the circumferential direction is arranged between the pressure plate and the central sleeve, the clearance which rotates relatively in the circumferential direction between the pressure plate and the central sleeve can be designed on the matching relationship of the pressure plate and the central sleeve, the pressure plate and the central sleeve are similar to synchronous rotation in the common design, and the clearance which rotates relatively needs to reserve a space which rotates in the circumferential direction on the basis of the similar synchronous rotation, and the clearance can be realized by the existing mechanical design means, and is not repeated; here, the clearance means a space having a relative rotation rather than a large angle of rotation.
The inclined plane meshing pair refers to two mutually meshed inclined planes (a spiral surface is formed in the axial direction), when relative rotation (small) occurs between the pressure plate and the central sleeve, the inclined plane meshing pair can generate axial component force, under the condition that the inclined direction (turning direction) of the inclined plane is set, the axial component force can tighten the pressure plate and the central sleeve, the inclined plane meshing pair can increase the output torque of the clutch by meshing and tightening, the reserve coefficient of the clutch is increased, the force transfer capacity is increased, the main spring of the auxiliary clutch enables the clutch to be quickly jointed, the force path of the operating clutch is reduced, the reserve coefficient of the clutch is increased under the condition that the elastic coefficient of the main spring is not changed, the comfort and the commodity are improved, and the reliability of the engine is improved; because the combination speed is higher, the friction plate sliding process is shortened, the temperature rise of the friction plate is reduced, the heat dissipation effect is better, the fault ablation is avoided, the service life of the friction plate of the clutch can be prolonged, and the service life of the clutch is prolonged; in addition, under the side effect of bevel engagement, a force except for a main spring is provided for pressing the friction plate, the combination force is increased, the combination efficiency is improved, the overall efficiency of the vehicle is improved, and the energy consumption is reduced; because the combination speed is higher, the vibrato of the driven friction plate is eliminated in the sliding and grinding process, the noise of the whole automobile is reduced, and the commodity is better; in the invention, an inclined plane meshing pair is arranged between a pressure plate and a central sleeve of the clutch, when the pressure plate and the central sleeve rotate relatively, the inclined plane meshing pair forms a tensioning axial component force or an outward pushing axial component force, when lubrication is not smooth or lubrication is not available, the tensioning and outward pushing actions generate clamping stagnation, the clamping stagnation can block the compression friction transmission of the clutch, when the helical tooth lubrication channel is provided, lubricating oil can be led to the meshing surface of the end face helical tooth meshing pair, the action clamping stagnation is avoided, and the invention is particularly important for the tensioning component force (increasing the storage coefficient of the clutch); the drainage mode of the inclined plane lubrication channel can adopt any existing mechanical structure for introducing lubricating oil into the clutch, and the structure comprises a lubricating oil channel and a through hole which are arranged on the clutch and the transmission structure, so that the aim of the invention can be fulfilled, and the description is omitted;
of course, for a heavy-duty motor tricycle, the bevel engaging pair only engages in the direction of tensioning the pressure plate and the central sleeve, but does not engage in the reverse direction (such as the direction of pulling the engine by the wheel), so that the engine is required to brake when the heavy-duty motor tricycle decelerates on a downhill road and in a high-speed state.
Further, the inclined surface lubricating channel comprises an inclined surface lubricating oil channel for guiding the lubrication to the inclined surface meshing pair and a middle lubricating oil channel communicated with the inclined surface lubricating oil channel; the middle lubricating oil channel is communicated with a lubricating oil channel in a main shaft for outputting power of the clutch; the intermediate lubricating oil channel is used for communicating the inclined lubricating oil channel with the engine lubricating oil channel by adopting a mechanical means to achieve the purpose of lubrication, and the mechanical arm section comprises but is not limited to a lubricating oil channel, a lubricating oil hole, an oil storage space and the like, which are not described herein; the inclined lubricating oil channel refers to a lubricating oil channel for directly conveying lubricating oil to the meshing tooth surface, and an introducing oil channel, an oil hole and the like can be adopted, so that the details are not repeated; the middle lubricating oil channel is communicated with a lubricating oil channel in a main shaft for outputting power of the clutch, the lubricating oil channel in the main shaft refers to a lubricating oil channel in the main shaft of the engine, and naturally, in order to guide lubricating oil to the clutch, an oil channel is newly arranged, so that the lubricating oil channel in the main shaft is also the lubricating oil channel in the main shaft; in practice, the lubricating oil is delivered to each rotating pair and reciprocating friction pair of the engine through a lubricating oil channel in the main shaft, which belongs to the structure of the prior art and is not described in detail herein.
Furthermore, the inclined lubricating oil channel comprises a spiral oil groove, one end of the spiral oil groove is an outlet end, an opening of the spiral oil groove is positioned on an engaging surface of the inclined engaging pair, the other end of the spiral oil groove is an inlet end communicated with the middle lubricating oil channel, and the inlet end of the spiral oil groove faces the lubricating oil of the middle lubricating oil channel when the clutch rotates in the screwing direction; the spiral oil groove is a spiral structure, and the spiral structure can be a straight groove or an arc groove which is spirally arranged in the circumferential direction relative to the circumferential direction of the clutch, and the inlet end faces to lubricating oil to enable the lubricating oil to form passive cutting and directly lead the lubricating oil to the helical tooth meshing surface, so that the structure is simple, and the weight can be reduced; of course, clutch rotation herein refers to rotation of the normal transmission and does not include reverse rotation.
Further, the outer cover of the clutch is sleeved on the main shaft in a rotating fit mode through a needle bearing, the middle lubricating oil channel is formed by a radial oil passing hole in the main shaft, an inner oil channel of the needle bearing and an oil storage space on the needle bearing side, and the inlet end of the spiral oil groove is communicated with the oil storage space on the needle bearing side; the internal oil passage of the needle bearing can be actually formed between the inner ring and the outer ring of the needle bearing, a special oil passage does not need to be arranged, and the other oil passage is not excluded; the main shaft is provided with a radial oil hole corresponding to the needle bearing, lubricating oil flows out and then enters a needle bearing side space (oil storage space), and under the action of the rotating inertia force of the clutch, the lubricating oil enters the spiral oil groove and enters the helical tooth meshing tooth surface to form effective lubrication.
Further, the inclined lubricating oil channel comprises a lubricating oil hole or groove and an oil storage space communicated with the lubricating oil hole or groove, and the oil storage space is communicated with a central lubricating oil hole in the main shaft; a lubricating oil hole or a groove communicated with the meshing tooth surface is formed near the meshing inclined surface, as shown in the figure, the oil storage space can be in an additional processing design, and can also be formed naturally by a helical tooth meshing structure, so that the details are not repeated; the meshing hole or the groove is processed at any position of the end face helical tooth meshing pair, and only the oil outlet is required to be positioned on the meshing surface of the end face helical tooth meshing pair, which is not described herein again.
Further, a special pressing plate external spline for mounting a special driven friction plate is formed on the pressing plate, and a special pressing plate external spline for mounting a special driven friction plate is formed on the pressing plate; the structure accelerates the engagement of the clutch by utilizing the friction transmission power of the clutch, and has simple structure and low manufacturing cost; meanwhile, after the clutch is engaged, the special friction plate participates in transmission, and the load of the friction plate assembly is reduced, so that the torque transmitted by the external spline of the central sleeve is reduced, and the reliability of the clutch is improved; as shown in the figure, the special driven friction plate is one, and the mode of the special driven friction plate arranged on the pressure plate is the same as the mode of the special driven friction plate arranged on the central sleeve, and the description is omitted; the outer cover 1 is provided with two special driving friction plates which are respectively arranged at two sides of the special driven friction plate.
Further, a spring seat sinking groove for accommodating a clutch spring is sleeved on the pressure plate or the center, a spring guide post penetrating through the spring seat sinking groove is arranged on the center sleeve or the pressure plate, and a hole in the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance capable of rotating relatively in the circumferential direction is formed between the center sleeve and the pressure plate;
in the illustrated example of the invention, the pressure plate is provided with a spring seat sinking groove for accommodating a clutch spring, a spring guide post penetrating through the spring seat sinking groove is sleeved at the center, and a hole at the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance for relative rotation in the circumferential direction is formed between the pressure plate and the center sleeve; of course, the length direction of the waist-shaped hole is in the circumferential direction so as to reserve a clearance for relative rotation; as shown in the figure, the lifting plate is tightly mounted at the end of the spring guide post through a bolt, so as to form a structure that the compression spring drives the pressing plate to move axially, so that the clutch is separated, and details are not repeated herein.
The inclined plane meshing pair is formed by engaging an inclined tooth surface arranged on a boss of the central sleeve or the pressure plate with an inclined groove surface arranged on a hole groove of the pressure plate or the central sleeve in a manner of avoiding the spring seat sinking groove;
the spiral oil groove and the boss are correspondingly arranged on the other side surface of the central sleeve opposite to the boss, and the outlet end of the spiral oil groove is communicated with the inclined tooth surface of the corresponding boss;
in the invention, the center is sleeved with a boss, and the pressing plate is provided with a slotted hole; the back of the central sleeve (namely the other side opposite to the boss) is provided with a spiral oil groove and corresponds to the boss, the spiral oil groove is processed corresponding to the boss, the outlet end of the spiral oil groove is directly positioned on the inclined tooth surface after the back of the central sleeve is processed, the meshing inclined surface increases the reserve coefficient of the clutch, the meshing is needed to be cut in at the clutch jointing and sliding grinding stage to achieve the effect of tensioning the pressure plate and the central sleeve, and the clamping stagnation is easy to form in the cutting-in process, so that the meshing surface is lubricated, the clamping stagnation of the clutch jointing can be eliminated, the smoothness of the clutch running is ensured, and the clutch ablation is avoided.
Further, a spring seat sinking groove for accommodating a clutch spring is sleeved on the pressure plate or the center, a spring guide post penetrating through the spring seat sinking groove is arranged on the center sleeve or the pressure plate, and a hole in the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance capable of rotating relatively in the circumferential direction is formed between the center sleeve and the pressure plate;
in the illustrated example of the invention, the pressure plate is provided with a spring seat sinking groove for accommodating a clutch spring, a spring guide post penetrating through the spring seat sinking groove is sleeved at the center, and a hole at the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance for relative rotation in the circumferential direction is formed between the pressure plate and the center sleeve; of course, the length direction of the waist-shaped hole is in the circumferential direction so as to reserve a clearance for relative rotation; as shown in the figure, the lifting plate is tightly mounted at the end of the spring guide post through a bolt, so as to form a structure that the compression spring drives the pressing plate to move axially, so that the clutch is separated, and details are not repeated herein.
The inclined plane meshing pair is formed by engaging an inclined tooth surface arranged on a boss of the central sleeve or the pressure plate with an inclined groove surface arranged on a hole groove of the pressure plate or the central sleeve in a manner of avoiding the spring seat sinking groove;
the lubricating oil hole or groove is arranged in a mode of correspondingly communicating with an inclined tooth surface of the inclined tooth;
the oil storage space is formed by the hole groove directly or by processing the oil storage groove at the top of the boss;
in the invention, the center sleeve is provided with oblique teeth, and the pressing plate is provided with an oblique groove; the oil storage tank is processed at the top of the helical tooth, and actually, the oil storage tank can be directly formed by the skewed slot and still has a lubricating effect, and the special oil storage tank is processed at the tooth top, so that the lubricating oil can be stored for a long time and can be continuously lubricated; and is communicated with the oil storage tank at the top of the boss; as shown in the figure, a lubricating oil hole communicated with the meshing inclined plane is processed corresponding to the oil storage groove, the structure is simple, the processing cost is not increased, smooth meshing of the inclined plane meshing pair can be guaranteed without clamping stagnation, and therefore running faults of the clutch are avoided, and particularly common ablation phenomena are avoided.
Furthermore, a supporting shaft which is rotatably supported on one side of the clutch opposite to the main shaft is arranged in transmission fit with the main shaft; the middle lubricating oil channel is composed of a supporting shaft oil channel which is arranged on the supporting shaft and communicated with a main shaft central oil channel, and an oil passing groove which is processed at the end part of the pressing plate close to the central sleeve, and the lubricating oil enters the inclined groove through the middle lubricating oil channel so as to enter the oil storage space; the supporting shaft can ensure the stable operation of the main shaft and avoid a cantilever shaft structure, lubricating oil is introduced into the clutch (more gaps are formed among all parts of the clutch, and the lubricating oil can flow) through the supporting shaft so as to enter the inclined groove, and the structure is simple and easy to form; as shown in the figure, a longitudinal straight groove is formed in the surface of the outer circle of the supporting shaft, the longitudinal straight groove is directly communicated with the central oil duct of the main shaft, the longitudinal straight groove is partially exposed out of the main shaft (the supporting shaft is partially sleeved on the main shaft), and the longitudinal straight groove directly and radially enters the clutch under the action of rotating centrifugal force, so that the longitudinal straight groove and the oil storage space enter the inclined groove and realize smooth lubrication.
Furthermore, the lead angle of the oblique tooth surface and the oblique groove surface is 20-70 degrees, preferably 55-60 degrees, and the lead angle is 55 degrees in the embodiment; the matching structure that the boss 203 is provided with the inclined tooth surface 2031 and the slotted hole 303 is provided with the inclined slot surface 3031 is adopted, so that the original parts and space of the clutch are fully utilized, and the whole volume and the external structure of the clutch do not need to be changed; and, the cooperation structure of skewed tooth face and skewed slot face has still guaranteed the stability of meshing process, and for wet clutch, still do benefit to and form effective lubrication.
The invention has the beneficial effects that: according to the anti-clamping stagnation strengthened engagement clutch for the heavy-duty motor tricycle, the inclined plane meshing pair is utilized to enable the central sleeve and the pressure plate to be associated, when set relative rotation occurs, the inclined plane meshing pair is meshed to enable the pressure plate and the central sleeve to be tensioned, the output torque of the clutch can be increased, the reserve coefficient of the clutch is increased, the force transmission capacity is increased, the sliding abrasion time of the clutch is shortened, the heat dissipation effect is better, the fault ablation is avoided, and the service life of the clutch is prolonged; the force value of the control force is reduced, and the comfort and the commodity are improved; meanwhile, an original lubricating system of the engine is simply improved to form an oil duct for lubricating the bevel engagement pair, so that the clutch is fast and smooth in the engaging process, the clamping stagnation is prevented, cooling is formed, ablation is avoided, and the overall performance of the clutch is improved; and when the engine is dragged reversely in the downhill or deceleration process, the engine is not engaged, and the engine is utilized to form braking, so that the invention is more suitable for heavy-load three-wheeled vehicles.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the end face helical tooth meshing pair structure of the present invention;
FIG. 3 is a perspective view of the center sleeve structure (back)
FIG. 4 is an isometric view of a center sleeve structure (front side);
FIG. 5 is a schematic view of another lubrication configuration of the present invention;
FIG. 6 is a cross-sectional view of an alternative lubricating structure bevel engagement pair of the present invention;
figure 7 is an isometric view (front) of an alternative lubrication feature of the center sleeve.
Detailed Description
As shown in the figures, the anti-clamping stagnation strengthened joint clutch for the heavy-duty motor tricycle comprises a pressure plate 2, a friction plate assembly and a center sleeve 3; a clearance for relative rotation in the circumferential direction is formed between the pressure plate 2 and the central sleeve 3, and the pressure plate and the central sleeve are meshed through an inclined plane meshing pair; when the clutch is engaged for transmission, the pressure plate rotates relative to the central sleeve in the transmission direction, and the inclined surface meshing pair generates axial component force for pulling the pressure plate and the central sleeve close;
the clutch further includes a ramp lubrication channel for directing lubrication to the ramp engaging pair;
the clearance for relative rotation in the circumferential direction is formed between the pressure plate 2 and the central sleeve 3, the clearance for relative rotation in the circumferential direction between the pressure plate 2 and the central sleeve 3 can be designed on the matching relationship of the two, the two are similar to synchronous rotation in the common design, and the clearance for relative rotation needs to reserve a space for rotation in the circumferential direction on the basis of similar to synchronous rotation, and the clearance for relative rotation can be realized by the existing mechanical design means, and is not described again; here, the clearance means a space having a relative rotation rather than a large angle of rotation.
The structure of the clutch naturally comprises an outer cover 1, a pressure plate 2, a central sleeve 3, a lifting plate 9, a main spring 4, a friction plate assembly (a driving friction plate 5 is arranged on the outer cover 1, a driven friction plate 6 is arranged at an external spline 301 of the central sleeve 3) and the like, wherein the pressure plate 2 or the central sleeve 3 is provided with a spring seat sinking groove for accommodating the main spring, the central sleeve or the pressure plate is correspondingly provided with a spring guide pillar, the spring guide pillar penetrates through a through hole arranged at the bottom of the spring seat sinking groove, the lifting plate 9 is basically and fixedly arranged at the end part of the spring guide pillar through a bolt 10, one end of the main spring props against the lifting plate, the other end props against the bottom of the spring seat sinking groove to form pre-tightening force for pressing the pressure plate and the central sleeve, so that; when the clutch needs to be separated, the lifting plate is driven by external force to compress the spring and drive the spring guide post to drive the pressing plate or the central sleeve to move so as to separate and compress the pressing plate and the central sleeve, so that the clutch is separated and separated from transmission; the mechanical structure of the clutch also has other auxiliary components, which belong to the prior art and are not described herein;
the inclined plane meshing pair refers to two mutually meshed inclined planes (a spiral surface is formed in the axial direction), when relative rotation (small) occurs between the pressure plate and the central sleeve, the inclined plane meshing pair can generate axial component force, under the condition that the inclined direction (turning direction) of the inclined plane is set, the axial component force can tighten the pressure plate and the central sleeve, the inclined plane meshing pair can increase the output torque of the clutch by meshing and tightening, the reserve coefficient of the clutch is increased, the force transfer capacity is increased, the main spring of the auxiliary clutch enables the clutch to be quickly jointed, the force path of the operating clutch is reduced, the reserve coefficient of the clutch is increased under the condition that the elastic coefficient of the main spring is not changed, the comfort and the commodity are improved, and the reliability of the engine is improved; because the combination speed is higher, the friction plate sliding process is shortened, the temperature rise of the friction plate is reduced, the heat dissipation effect is better, the fault ablation is avoided, the service life of the friction plate of the clutch can be prolonged, and the service life of the clutch is prolonged; in addition, under the side effect of bevel engagement, a force except for a main spring is provided for pressing the friction plate, the combination force is increased, the combination efficiency is improved, the overall efficiency of the vehicle is improved, and the energy consumption is reduced; because the combination speed is higher, the vibrato of the driven friction plate is eliminated in the sliding and grinding process, the noise of the whole automobile is reduced, and the commodity is better; in the invention, an inclined plane meshing pair is arranged between a pressure plate and a central sleeve of the clutch, when the pressure plate and the central sleeve rotate relatively, the inclined plane meshing pair forms a tensioning axial component force or an outward pushing axial component force, when lubrication is not smooth or lubrication is not available, the tensioning and outward pushing actions generate clamping stagnation, the clamping stagnation can block the compression friction transmission of the clutch, when the helical tooth lubrication channel is provided, lubricating oil can be led to the meshing surface of the end face helical tooth meshing pair, the action clamping stagnation is avoided, and the invention is particularly important for the tensioning component force (increasing the storage coefficient of the clutch); the drainage mode of the inclined plane lubrication channel can adopt any existing mechanical structure for introducing lubricating oil into the clutch, and the structure comprises a lubricating oil channel and a through hole which are arranged on the clutch and the transmission structure, so that the aim of the invention can be fulfilled, and the description is omitted;
of course, for a heavy-duty motor tricycle, the bevel engagement pair only engages in the direction of tensioning the pressure plate and the center sleeve, but does not engage in the reverse direction (such as the direction of pulling the engine by the wheel) as shown in fig. 3, so that the engine is required to brake when the heavy-duty motor tricycle decelerates in a downhill road and in a high-speed state, and therefore, the clutch is used for the heavy-duty motor tricycle, and the bevel engagement pair eliminates the bevel engagement in the reverse direction, so that the clutch is prevented from being separated when the wheel of the downhill road pulls reversely.
In the embodiment, the helical tooth lubricating channel comprises a tooth surface end lubricating oil channel for guiding lubricating oil to the meshing surface of the end face helical tooth meshing pair and a middle lubricating oil channel communicated with the tooth surface end lubricating oil channel; the middle lubricating oil channel is used for communicating the lubricating oil channel at the tooth surface end with the lubricating oil channel of the engine by adopting a mechanical means so as to achieve the purpose of lubrication, and the mechanical arm section comprises but is not limited to a lubricating oil channel, a lubricating oil hole, an oil storage space and the like, which are not described herein; the gear surface end lubricating oil channel refers to a lubricating oil channel which directly conveys lubricating oil to the meshing gear surface, and an introducing oil channel, an oil hole and the like can be adopted, and are not described in detail herein.
In this embodiment, the intermediate lubricating oil channel is communicated with a lubricating oil channel 1001 in a main shaft 10 which outputs power of a clutch, the lubricating oil channel 1001 in the main shaft 1 refers to a lubricating oil channel in the main shaft of the engine, and naturally, in order to guide lubricating oil to the clutch, an oil channel is newly arranged, and the lubricating oil channel in the main shaft is also the lubricating oil channel in the invention; in practice, the lubricating oil is delivered to each rotating pair and reciprocating friction pair of the engine through a lubricating oil channel in the main shaft, which belongs to the structure of the prior art and is not described in detail herein.
In this embodiment, the lubricating oil duct at the tooth surface end includes a spiral oil groove 13, one end of the spiral oil groove 13 is an outlet end, an opening of the spiral oil groove is located on an engagement surface of the inclined-surface engagement pair, the other end of the spiral oil groove 13 is an inlet end communicated with the middle lubricating oil duct, and the inlet end of the spiral oil groove 13 faces the lubricating oil of the middle lubricating oil duct when the clutch rotates; the spiral oil groove is a spiral structure, and the spiral structure can be a straight groove or an arc groove which is spirally arranged in the circumferential direction relative to the circumferential direction of the clutch, and the inlet end faces to lubricating oil to enable the lubricating oil to form passive cutting and directly lead the lubricating oil to the helical tooth meshing surface, so that the structure is simple, and the weight can be reduced; of course, clutch rotation herein refers to rotation of the normal transmission and does not include reverse rotation.
In this embodiment, the outer cover 1 of the clutch is rotatably fitted over the spindle 10 through a needle bearing 14, the intermediate lubricating oil channel is formed by a radial oil passing hole 11 formed in the spindle 1, an internal oil channel of the needle bearing 14, and a needle bearing side oil storage space 12, and an inlet end of the spiral oil channel 13 is communicated with the needle bearing side oil storage space, as shown by arrows in fig. 1 and 2, when the clutch rotates, the lubricating oil in the internal oil channel of the spindle enters the needle bearing by using a radial centrifugal force, sequentially enters the needle bearing side oil storage space 12, and cuts into the spiral oil channel 13; the internal oil passage of the needle bearing can be actually formed between the inner ring and the outer ring of the needle bearing, a special oil passage does not need to be arranged, and the other oil passage is not excluded; namely, a radial oil hole corresponding to the needle bearing is formed on the main shaft, the lubricating oil flows out and then enters a needle bearing side space (oil storage space), and under the action of the rotating inertia force of the clutch, the lubricating oil enters the spiral oil groove 13 and enters the inclined tooth surface of the boss to form effective lubrication; as shown in fig. 1, the spindle 10 is sleeved with a sleeve 15, a needle bearing is sleeved on the sleeve, and the radial oil passing hole 11 naturally penetrates through the spindle and the sleeve, which will not be described herein.
In this embodiment, the pressure plate or the center sleeve is provided with a spring seat sinking groove for accommodating a clutch spring, the center sleeve or the pressure plate is provided with a spring guide post penetrating through the spring seat sinking groove, and a hole in the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance for relative rotation in the circumferential direction is formed between the center sleeve and the pressure plate;
in the illustrated example of the invention, the pressure plate is provided with a spring seat sinking groove for accommodating a clutch spring, a spring guide post penetrating through the spring seat sinking groove is sleeved at the center, and a hole at the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance for relative rotation in the circumferential direction is formed between the pressure plate and the center sleeve; of course, the length direction of the waist-shaped hole is in the circumferential direction so as to reserve a clearance for relative rotation; as shown in the figure, the lifting plate is tightly mounted at the end of the spring guide post through a bolt, so as to form a structure that the compression spring drives the pressing plate to move axially, so that the clutch is separated, and details are not repeated herein.
The inclined plane meshing pair is formed by engaging an inclined tooth surface arranged on a boss of the central sleeve or the pressure plate with an inclined groove surface arranged on a hole groove of the pressure plate or the central sleeve in a manner of avoiding the spring seat sinking groove;
in the illustrated example of the invention, the inclined surface meshing pair is formed by meshing an inclined tooth surface arranged on a boss of the central sleeve and an inclined groove surface arranged on a hole groove of the pressure plate and avoiding the spring seat sinking groove;
the spiral oil groove and the boss are correspondingly arranged on the other side surface of the central sleeve opposite to the boss, and the outlet end of the spiral oil groove is communicated with the inclined tooth surface of the corresponding boss;
in the invention, the spiral oil groove is processed on the back surface of the central sleeve (namely the other side opposite to the boss) and corresponds to the boss, the spiral oil groove is processed corresponding to the boss, the outlet end of the spiral oil groove is directly positioned on the inclined tooth surface after the back surface of the central sleeve is processed, because the meshing inclined surface increases the reserve coefficient of the clutch, the meshing is needed to be cut in at the clutch jointing and sliding stage to achieve the effect of tensioning the pressure plate and the central sleeve, and the clamping stagnation is easy to form in the cutting-in process, therefore, the meshing surface is lubricated, the clamping stagnation of the clutch jointing can be eliminated, the smoothness of the clutch running is ensured, and the clutch ablation is avoided.
The lubricating oil passage of the present invention may also adopt another structure, as shown in fig. 5-7, the inclined lubricating oil passage includes a lubricating oil hole or groove and an oil storage space communicated with the lubricating oil hole or groove, the oil storage space is communicated with a central lubricating oil hole in the main shaft; a lubricating oil hole or a groove communicated with the meshing tooth surface is formed near the meshing inclined surface, as shown in the figure, the oil storage space can be in an additional processing design, and can also be formed naturally by a helical tooth meshing structure, so that the details are not repeated; the engaging hole or groove is processed at any position of the end face helical tooth engaging pair, and only the oil outlet is required to be positioned on the engaging surface of the oblique tooth engaging pair, which is not described herein again.
The lubricating hole or the groove is processed at any position of the inclined plane meshing pair, and only the oil outlet is required to be positioned on the meshing surface of the inclined plane meshing pair, which is not described herein again.
In another structure, the bevel engaging pair is not substantially different from the former structure, the bevel engaging pair is formed by engaging a bevel tooth surface of a boss provided on the center sleeve or the pressure plate with a bevel groove surface of a groove hole provided on the pressure plate or the center sleeve, and the lubricating oil hole or groove is correspondingly provided in a manner of communicating with the bevel tooth surface;
the oil storage space is formed by the groove hole directly or by processing the oil storage groove at the top of the boss; in the present invention, the center is sleeved with a boss 301 'and the pressing plate is provided with a slot 201'; one side of the boss 301 ' is provided with a beveled tooth surface 3011 ', and the boss 301 ' penetrates into the slot 201 ' so that the beveled tooth surface 3011 ' is engaged with an engaging bevel 2011 ' formed on the corresponding side of the slot 201 '; in the structure, the oil storage tank 17 is processed at the top of the boss 301', in fact, the oil storage tank can be directly formed by a slotted hole, and still has a lubricating effect, and the special oil storage tank is processed at the top of the boss, so that the lubricating oil can be stored for a long time and can be continuously lubricated; and is communicated with the oil storage tank at the top of the boss; as shown in the figure, the lubricating oil holes 13 'respectively communicated with the inclined tooth surfaces 3011' are processed corresponding to the oil storage tank 17, the structure is simple, the processing cost is not increased, the meshing can be guaranteed to be smooth without clamping stagnation, and therefore the running fault of the clutch is avoided, and particularly the common ablation phenomenon is avoided.
In the structure, a supporting shaft 16 which is rotatably supported on one side of the clutch opposite to the main shaft is arranged in transmission fit with the main shaft 10; the middle lubricating oil channel is composed of a support shaft oil channel 1601 which is arranged on the support shaft 16 and communicated with the main shaft central oil channel 1001 and an oil passing groove 12 'which is arranged at one end of the pressing plate close to the central sleeve, the oil passing groove 12' is a radial through groove, a rectangular tooth-shaped structure is formed at the end part, a plurality of oil passing grooves can be arranged along the circumferential direction, and multi-directional oil feeding is facilitated; as shown by the arrows in fig. 5 and 6, the lubricating oil enters the groove hole through the intermediate lubricating oil passage, enters the oil reservoir 17, and enters the inclined tooth face 3011'; the support shaft 16 can ensure the stable operation of the main shaft and avoid a cantilever shaft structure, lubricating oil is introduced into the clutch (more gaps are formed among all parts of the clutch, and the lubricating oil can flow) through the support shaft so as to enter a slotted hole, and the structure is simple and easy to form; as shown in the figure, a longitudinal straight groove is formed in the surface of the outer circle of the support shaft to form a support shaft oil duct 1601, the longitudinal straight groove is directly communicated with a central oil duct of the main shaft, the longitudinal straight groove is partially exposed out of the main shaft (the support shaft is partially sleeved on the main shaft), and lubricating oil directly and radially enters the clutch under the action of a rotating centrifugal force, so that the lubricating oil enters a chute and an oil storage space to realize smooth lubrication;
in the embodiment, the inclined tooth surface and the inclined groove surface can be of a spiral structure similar to that formed by a plane, an arc surface and the like, and the total inclination can achieve the effect of generating axial component force; in the embodiment, the lead angle of the oblique tooth surface and the oblique groove surface is 20-70 degrees, preferably 55-60 degrees, and the lead angle is 55 degrees in the embodiment; the matching structure that the boss 203 is provided with the inclined tooth surface 2031 and the slotted hole 303 is provided with the inclined slot surface 3031 is adopted, so that the original parts and space of the clutch are fully utilized, and the whole volume and the external structure of the clutch do not need to be changed; in addition, the matching structure of the oblique tooth surface and the oblique groove surface also ensures the stability of the meshing process, and is beneficial to forming effective lubrication for a wet clutch;
in this embodiment, the pressing plate 2 is provided with a pressing plate dedicated external spline 201 for mounting a dedicated driven friction plate 8, as shown in the figure, the dedicated driven friction plate 8 and the driven friction plate 6 on the central sleeve 3 are axially arranged in parallel, the rotation process of the clutch is delayed relative to the pressing plate due to the load of the central sleeve in the engaging, transmission and slipping process, the pressing plate is rotated relative to the central sleeve forwards, and due to the effect of the inclined plane engaging pair, an axial pulling force is generated between the pressing plate and the central sleeve to accelerate the engagement of the clutch; the structure accelerates the engagement of the clutch by utilizing the friction transmission power of the clutch, and has simple structure and low manufacturing cost; meanwhile, after the clutch is engaged, the special friction plate participates in transmission, and the load of the friction plate assembly is reduced, so that the torque transmitted by the external spline of the central sleeve is reduced, and the reliability of the clutch is improved; as shown in the figure, the special driven friction plate is one, and the mode of the special driven friction plate arranged on the pressure plate is the same as the mode of the special driven friction plate arranged on the central sleeve, and the description is omitted; and two special driving friction plates 7 which are respectively arranged at two sides of the special driven friction plate 8 are arranged on the outer cover 1 in a matching way with the special driven friction plate.
The invention adopts the matching structure of the boss 203 and the slotted hole 303, fully utilizes the original parts and space of the clutch, and ensures that the whole volume and the external structure of the clutch do not need to be changed; and, the cooperation structure of skewed tooth and chute has still guaranteed the stability of meshing process, and for wet clutch, still do benefit to and form effective lubrication.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. An anti-sticking strengthened engagement clutch for a heavy-duty motor tricycle, characterized in that: comprises a pressure plate, a friction plate component and a central sleeve; the pressure plate and the central sleeve are provided with a clearance which rotates relatively in the circumferential direction, and the pressure plate and the central sleeve are meshed through an inclined plane meshing pair; when the clutch is engaged for transmission, the pressure plate rotates relative to the central sleeve in the transmission direction, and the inclined surface meshing pair generates axial component force for pulling the pressure plate and the central sleeve close;
the clutch also includes a ramp lubrication channel for directing lubrication to the ramp engaging pair.
2. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 1, characterized in that: the inclined surface lubricating channel comprises an inclined surface lubricating oil channel for guiding the lubrication to the inclined surface meshing pair and a middle lubricating oil channel communicated with the inclined surface lubricating oil channel; and the middle lubricating oil channel is communicated with a lubricating oil channel in a main shaft for outputting the power of the clutch.
3. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 2, characterized in that: the inclined lubricating oil channel comprises a spiral oil groove, one end of the spiral oil groove is an outlet end, an opening of the spiral oil groove is located on a meshing surface of the inclined meshing pair, the other end of the spiral oil groove is communicated with the middle lubricating oil channel, and the inlet end of the spiral oil groove faces lubricating oil of the middle lubricating oil channel when the clutch rotates in the turning direction of the spiral oil groove.
4. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 3, characterized in that: the outer cover of the clutch is sleeved outside the main shaft in a rotating fit mode through a needle bearing, the middle lubricating oil channel is formed by a radial oil passing hole in the main shaft, an inner oil channel of the needle bearing and an oil storage space on the needle bearing side, and the inlet end of the spiral oil groove is communicated with the oil storage space on the needle bearing side.
5. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 2, characterized in that: the inclined lubricating oil channel comprises a lubricating oil hole or groove and an oil storage space communicated with the lubricating oil hole or groove, and the oil storage space is communicated with the central lubricating oil hole in the main shaft.
6. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 1, characterized in that: and the pressing plate is provided with a pressing plate special external spline for mounting the special driven friction plate.
7. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 3, characterized in that: the pressure plate or the center sleeve is provided with a spring seat sinking groove for accommodating a clutch spring, the center sleeve or the pressure plate is provided with a spring guide post penetrating through the spring seat sinking groove, and a hole at the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance for relative rotation in the circumferential direction is formed between the center sleeve and the pressure plate;
the inclined plane meshing pair is formed by engaging an inclined tooth surface arranged on a boss of the central sleeve or the pressure plate with an inclined groove surface arranged on a hole groove of the pressure plate or the central sleeve in a manner of avoiding the spring seat sinking groove;
the spiral oil groove and the boss are correspondingly arranged on the other side face of the central sleeve opposite to the boss, and the outlet end of the spiral oil groove is communicated with the inclined tooth face of the corresponding boss at the arranged position.
8. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 5, characterized in that: the pressure plate or the center sleeve is provided with a spring seat sinking groove for accommodating a clutch spring, the center sleeve or the pressure plate is provided with a spring guide post penetrating through the spring seat sinking groove, and a hole at the bottom of the spring seat sinking groove for penetrating through the spring guide post is a waist-shaped hole, so that a clearance for relative rotation in the circumferential direction is formed between the center sleeve and the pressure plate;
the inclined plane meshing pair is formed by engaging an inclined tooth surface arranged on a boss of the central sleeve or the pressure plate with an inclined groove surface arranged on a hole groove of the pressure plate or the central sleeve in a manner of avoiding the spring seat sinking groove;
the lubricating oil hole or groove is arranged in a mode of correspondingly communicating with an inclined tooth surface of the inclined tooth;
the oil storage space is formed by the hole groove directly or by processing the oil storage groove at the top of the boss.
9. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 8, characterized in that: a support shaft which is rotatably supported on one side of the clutch opposite to the main shaft is arranged in transmission fit with the main shaft; the middle lubricating oil channel is composed of a supporting shaft oil channel which is arranged on the supporting shaft and communicated with the main shaft central oil channel and an oil passing groove which is processed at the end part of the pressing plate close to the central sleeve, and the lubricating oil enters the inclined groove through the middle lubricating oil channel so as to enter the oil storage space.
10. The anti-sticking strengthened engagement clutch for heavy-duty motor tricycle according to claim 7, characterized in that: the lead angle of the oblique tooth surface and the oblique groove surface is 20-70 degrees.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055054.3A CN111255815A (en) | 2020-01-17 | 2020-01-17 | Reinforced clutch and engine |
| CN2020100550543 | 2020-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112343933A true CN112343933A (en) | 2021-02-09 |
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Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010055054.3A Pending CN111255815A (en) | 2020-01-17 | 2020-01-17 | Reinforced clutch and engine |
| CN202010912452.2A Pending CN111911553A (en) | 2020-01-17 | 2020-09-02 | Anti-clamping stagnation clutch |
| CN202010911692.0A Pending CN111911552A (en) | 2020-01-17 | 2020-09-02 | Clutch device |
| CN202021927051.6U Active CN214499839U (en) | 2020-01-17 | 2020-09-04 | Transmission device for heavy-load motor tricycle |
| CN202010924431.2A Pending CN111911554A (en) | 2020-01-17 | 2020-09-04 | Intensified joint clutch for heavy-load motor tricycle |
| CN202010923816.7A Pending CN112343933A (en) | 2020-01-17 | 2020-09-04 | Anti-clamping stagnation strengthened engagement clutch for heavy-load motor tricycle |
Family Applications Before (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010055054.3A Pending CN111255815A (en) | 2020-01-17 | 2020-01-17 | Reinforced clutch and engine |
| CN202010912452.2A Pending CN111911553A (en) | 2020-01-17 | 2020-09-02 | Anti-clamping stagnation clutch |
| CN202010911692.0A Pending CN111911552A (en) | 2020-01-17 | 2020-09-02 | Clutch device |
| CN202021927051.6U Active CN214499839U (en) | 2020-01-17 | 2020-09-04 | Transmission device for heavy-load motor tricycle |
| CN202010924431.2A Pending CN111911554A (en) | 2020-01-17 | 2020-09-04 | Intensified joint clutch for heavy-load motor tricycle |
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| Country | Link |
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| CN (6) | CN111255815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366120A (en) * | 2022-07-06 | 2024-01-09 | 株式会社F.C.C. | Clutch device and motorcycle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255815A (en) * | 2020-01-17 | 2020-06-09 | 重庆隆鑫机车有限公司 | Reinforced clutch and engine |
| CN114183477B (en) * | 2021-12-13 | 2024-01-19 | 哈尔滨工业大学（威海） | Clutch applied to friction additive manufacturing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN214499839U (en) | 2021-10-26 |
| CN111911552A (en) | 2020-11-10 |
| CN111255815A (en) | 2020-06-09 |
| CN111911553A (en) | 2020-11-10 |
| CN111911554A (en) | 2020-11-10 |
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