CN111998016A - One-way transmission device and engine - Google Patents

One-way transmission device and engine Download PDF

Info

Publication number
CN111998016A
CN111998016A CN202010912463.0A CN202010912463A CN111998016A CN 111998016 A CN111998016 A CN 111998016A CN 202010912463 A CN202010912463 A CN 202010912463A CN 111998016 A CN111998016 A CN 111998016A
Authority
CN
China
Prior art keywords
meshing
way transmission
axial
transmission device
retaining ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010912463.0A
Other languages
Chinese (zh)
Inventor
蒋博文
周良兵
陈艺方
彭发碧
向彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Longxin Locomotive Co ltd
Original Assignee
Guangdong Longxin Locomotive Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Longxin Locomotive Co ltd filed Critical Guangdong Longxin Locomotive Co ltd
Priority to CN202010912463.0A priority Critical patent/CN111998016A/en
Publication of CN111998016A publication Critical patent/CN111998016A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/069—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
    • F16D41/07—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags between two cylindrical surfaces
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D2041/0605—Spring details
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/02—Overheat protection, i.e. means for protection against overheating
    • F16D2300/021—Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
    • F16D2300/0214—Oil or fluid cooling
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/06—Lubrication details not provided for in group F16D13/74

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention discloses a one-way transmission device and an engine, wherein the one-way transmission device comprises an outer ring and a plurality of meshing bodies, the meshing bodies are arranged in the inner circle of the outer ring in the circumferential direction and are used for forming one-way transmission by the outer ring, and the outer ring is provided with an oil passage for guiding lubricating oil to the position of the meshing body; the invention adopts the structure that the lubricating oil channel is arranged on the outer ring and points to the part where the meshing body is located, so that the meshing body is sufficiently lubricated, the heat dissipation and flushing effects are ensured, the adverse effect caused by friction is reduced, the meshing body is prevented from being damaged by friction scraps, and the service life of the one-way device is prolonged.

Description

One-way transmission device and engine
Technical Field
The invention relates to a transmission device and an engine for motor vehicle transmission, in particular to a one-way transmission device and an engine.
Background
A one-way transmission (also referred to as an overrunning clutch) is an important component for power transfer and disconnect functions between power input and output. It is mainly a device with self-clutch function by using speed change of driving and driven parts or change of rotation direction.
An electric starting system of an engine needs to be provided with a one-way transmission device, generally comprises an outer ring for inputting starting power, a meshing body for separating or meshing and a starting shaft for outputting power (an inner ring can be independently arranged and is in transmission fit with the starting shaft), wherein the meshing body is arranged between the outer ring and the starting shaft through a retainer, and an independent lubricating oil passage is not arranged, so that poor heat dissipation exists in the using process, the meshing body is seriously abraded and generates scraps when transmitting torque, and the meshing body can be damaged to cause the damage of the one-way transmission device when the engine is continuously used.
Therefore, the existing one-way device needs to be improved, the lubrication of the meshing body in the one-way device can be guaranteed, the heat dissipation and flushing effects are guaranteed, the adverse effect caused by friction is reduced, and the friction scraps are prevented from damaging the meshing body, so that the service life of the one-way device is prolonged.
Disclosure of Invention
In view of this, the invention provides a one-way transmission device and an engine, which are provided with a special lubricating oil passage, and can ensure lubrication of a meshing body in the one-way transmission device, ensure heat dissipation and flushing effects, reduce adverse effects caused by friction, and avoid damage of friction debris to the meshing body, thereby prolonging the service life of the one-way transmission device.
The one-way transmission device comprises an outer ring and a meshing body, wherein the meshing body is multiple and is arranged in the inner circle of the outer ring in the circumferential direction to enable one-way transmission to be formed between the outer ring and an outer circle part, and the outer ring is provided with an oil passage for guiding lubricating oil to the position of the meshing body; the structure of the unidirectional transmission device generally comprises an outer ring and a meshing body, and can not comprise an outer circle part, the outer circle part can be provided by another part which forms unidirectional transmission matching with the outer ring, and the unidirectional transmission device can also comprise the outer circle part to form an integral structure, which is not described herein again; the unidirectional transmission can be from an outer circle piece to an outer circle piece, or from the outer circle to the outer circle piece, and is set according to needs, and is not described again; the meshing bodies are arranged in the inner circle of the outer circle in the circumferential direction and are used for forming one-way transmission of the outer circle, when the gear is used, the outer circle is sleeved on an outer circle piece through the meshing bodies, and the outer circle piece form one-way transmission matching through the meshing bodies, the outer circle piece can be of an inner circle structure and forms a complete one-way transmission structure with the meshing bodies and the outer circle, the outer circle piece can also be arranged on a single transmission mechanism, when the gear is used, the outer circle is directly sleeved on the outer circle piece through the meshing bodies, the purpose of the gear is also achieved, and the description is; according to the invention, the outer ring is provided with the oil duct, so that the lubricating oil splashed during starting can be guided to the position of the meshing body, the position of the meshing body refers to the position of the inner circle of the outer ring, and the oil duct enables cooling, flushing and lubricating to be formed between the meshing body and the outer ring and between outer circle parts, so that the meshing body is prevented from being worn excessively, and the meshing surface is prevented from being adversely affected by scraps, thereby prolonging the service life of the one-way transmission device.
The meshing body is provided with a plurality of meshing bodies, the meshing bodies are arranged in a circumferential direction at intervals, the meshing bodies are provided with a plurality of grooves, the grooves are provided with a plurality of elastic parts, the grooves are in contact with the elastic parts, and the grooves are in contact with the elastic parts; the engaging body is applied with radial inward pretightening force through the elastic piece, so that the engaging body is kept on the retainer and forms a complete one-way transmission device together with the outer ring; because the inner circle of the outer ring needs to be in contact with the meshing body (generally, the inner circle of the outer ring is in axial line contact), the outer side of the meshing body needs to be pre-stressed by an elastic piece, and a limiting clamping groove needs to be formed; in the structure, when the existing starting clutch one-way clutch transmits larger torque, an elastic part (generally a strip spring, applies inward pretightening force to a plurality of meshing bodies around one circle and is restrained on a retainer) is in contact with two ends of the circumferential direction of the groove bottom of a limiting clamping groove (has stress concentration), and impacts are formed in the processes of meshing and separating to generate deformation so as to damage the elastic part, so that the one-way device fails; in the structure, two ends of the bottom of the limiting clamping groove are processed into inward chamfers, and the chamfers are arranged to enable the two ends of the bottom of the limiting clamping groove to be adaptive to the stress of the elastic part, so that stress concentration is avoided, and the service life of the elastic part is prolonged; the chamfer can be an arc chamfer protruding outwards or a flat chamfer, and the aim of the invention can be achieved; herein, the outer side, the inner side, the inward direction, the outward direction and the like refer to the radial direction of the one-way transmission device (taking an outer ring as a standard), and the circumferential direction refers to the circumferential direction of the one-way transmission device, which is not described in detail herein.
Furthermore, the retaining assembly also comprises an inner retaining ring, an outer retaining ring and a retainer for keeping the distance between the meshing bodies, wherein the inner retaining ring and the outer retaining ring are respectively positioned at the two axial ends of the meshing bodies, and the two axial ends of the retainer are respectively fixed with the inner retaining ring and the outer retaining ring; the inner retaining ring and the outer retaining ring are respectively positioned at the two axial ends of the meshing body and used for supporting the retainer and forming axial limiting on the meshing body, which belongs to the prior art and is not described herein again; in the existing structure, only the spacing relation and the relative rotation exist between the inner retaining ring and the outer retaining ring and the retainer, and the axial relative movement also exists between the inner retaining ring and the outer retaining ring, thereby changing the relative distance and leading to the blocking of the meshing body at the one-way transmission device.
Furthermore, the body of the meshing body is cylindrical, a meshing shape line and an overrunning shape line which are matched with the outer ring are formed on the outer side of the body, the outer circle on the inner side of the body is used for being in contact with the outer circle part, so that one-way transmission matching is formed between the outer ring and the outer circle part, and the curvature radius of the contact part of the meshing body and the outer circle part is larger than that of the body of the meshing body; the structures of the meshing line and the exceeding line are the prior art and are not described again; because the curvature radius of the contact part of the meshing body and the outer circular part is larger than that of the body of the meshing body in the structure, the problems that the contact area of the meshing body and the outer circular part (in a starting system, the outer circular part is generally a disc tooth connecting shaft) is small and the capacity of transmitting torque is insufficient in the prior art are solved, and the transmission efficiency of the one-way transmission device is improved.
Furthermore, the oil passing channel consists of an axial oil passing groove and a radial oil passing groove, the axial oil passing groove is arranged on the outer circle of the outer ring and is axially arranged, the radial oil passing groove is arranged on the axial end face of the outer ring and is radially communicated, the axial oil passing groove is communicated with the radial oil passing groove, and lubricating oil is collected by the axial oil passing groove and flows to the part where the meshing body is located from the radial oil passing groove, so that effective lubrication is formed, the structure is simple and the machining is easy; the axial oil passing groove arranged axially can axially penetrate through the outer surface of the outer ring, and at least penetrates through the end surface provided with the radial oil passing groove, so that the axial oil passing groove and the radial oil passing groove are conveniently communicated; radial through means that the outer circle and the inner circle are penetrated on the axial end face of the outer ring to form a channel flowing to the meshing body.
Further, the axial oil passing groove and the radial oil passing groove are communicated to form arc-shaped chamfer transition, so that lubricating oil can flow conveniently, and effective lubrication is easy to form.
Furthermore, the retainer is formed by arranging a plurality of steel wires with two axial ends fixed on the inner retaining ring and the outer retaining ring along the circumferential direction, and a retaining through groove for supporting the corresponding meshing body to the outside is formed between the adjacent steel wires; the steel wire refers to a rigid strip-shaped structural body, and the meshing body is required to be restrained in strength, so that the detailed description is omitted; in the prior art, a retainer is formed by a steel wire in a reciprocating and circuitous way along the axial direction, and the end parts of the reciprocating and circuitous way are respectively corresponding to the inner retaining ring and the outer retaining ring and are restrained in the axial direction, so that the spacing between the inner retaining ring and the retainer and the spacing between the outer retaining ring and the retainer are ensured; in this structure, owing to adopt the spot welding structure, can needn't adopt the reciprocal circuitous structure of steel wire, and directly adopt steel wire (or billet) direct spot welding to take shape, the structure is whole comparatively firm, avoids taking place relative rotation.
Furthermore, the plurality of steel wires are formed by axially and reciprocally roundly winding one steel wire, and the axially end parts of the reciprocal roundings are fixed with the inner retaining ring and the outer retaining ring; in the structure, the retainer is formed by adopting the existing steel wire structure, the circuitous parts at two ends are subjected to spot welding, the stability of the structure is ensured, and the manufacturing process is simplified.
The invention also discloses an engine which comprises a starting system, wherein the starting system comprises a starting motor and the one-way transmission device, and the starting motor outputs starting power through the one-way transmission device.
Furthermore, the starting system also comprises a starting disc gear, the starting disc gear is integrally formed with a central shaft sleeve, the unidirectional transmission device is sleeved on the central shaft sleeve, and the outer ring of the unidirectional transmission device is in transmission fit with a magneto rotor of the engine; the central shaft sleeve is rotatably matched with a crankshaft sleeved outside the engine.
The invention has the beneficial effects that: according to the one-way transmission device and the engine, the structure that the lubricating oil channel is arranged on the outer ring is adopted, and the oil channel points to the part where the meshing body is located, so that the meshing body is sufficiently lubricated, the heat dissipation and flushing effects are ensured, the adverse effect caused by friction is reduced, the meshing body is prevented from being damaged by friction scraps, and the service life of the one-way transmission device is prolonged; after the one-way transmission device is used for a starting system of an engine, the service life of the starting system can be prolonged, and the use cost is saved.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an axial cross-sectional view of the present invention;
FIG. 3 is a radial cross-sectional view of the present invention;
FIG. 4 is an enlarged sectional view of the engagement body;
fig. 5 is a schematic diagram of the engine structure of the present invention.
Detailed Description
As shown in the figure: the one-way transmission device comprises an outer ring 1 and a meshing body 2, wherein the meshing body 2 is multiple and is arranged in the inner circle of the outer ring in the circumferential direction and used for the outer ring 1 to form one-way transmission, and the outer ring 1 is provided with an oil passage 101 for guiding lubricating oil to the position of the meshing body; the structure of the unidirectional transmission device generally comprises an outer ring and a meshing body, and can not comprise an outer circle part, the outer circle part can be provided by another part which forms unidirectional transmission matching with the outer ring, and the unidirectional transmission device can also comprise the outer circle part to form an integral structure, which is not described herein again; the unidirectional transmission can be from an outer circle piece to an outer circle piece, or from the outer circle to the outer circle piece, and is set according to needs, and is not described again; the meshing bodies 2 are arranged in the inner circle of the outer circle in the circumferential direction and are used for forming one-way transmission of the outer circle, when the gear is used, the outer circle 1 is sleeved on an outer circle part 7 through the meshing bodies, the outer circle and the outer circle part form one-way transmission matching through the meshing bodies, the outer circle part can be of an inner circle structure and forms a complete one-way transmission structure with the meshing bodies and the outer circle, the outer circle part can also be arranged on an independent transmission mechanism, when the gear is used, the outer circle is directly sleeved on the outer circle part through the meshing bodies, the purpose of the gear is achieved, and the description is omitted; according to the invention, the outer ring is provided with the oil duct, so that the lubricating oil splashed during starting can be guided to the position of the meshing body, the position of the meshing body refers to the position of the inner circle of the outer ring, and the oil duct enables cooling, flushing and lubricating to be formed between the meshing body and the outer ring and between outer circle parts, so that the meshing body is prevented from being worn excessively, and the meshing surface is prevented from being adversely affected by scraps, thereby prolonging the service life of the one-way transmission device.
In this embodiment, the device further comprises a holding assembly for binding the plurality of engaging bodies 2 to be arranged at intervals in the circumferential direction, the holding assembly comprises an elastic member 6 for applying elastic pretightening force to the engaging bodies inwards in the circumferential direction, a limiting clamping groove 201 for accommodating the elastic member 6 and preventing the elastic member from moving axially is formed in the outer side of each engaging body 2, and inward chamfers 2011 and 2012 are respectively formed at two ends (in the circumferential direction) of the groove bottom of the limiting clamping groove 201, which are in contact with and stressed by the elastic member; as shown in the figure, the limiting clamping groove 201 is arranged along the circumferential direction of the meshing body, which belongs to the prior art and is not described herein again; the elastic piece 6 applies a radially inward pretightening force to the meshing body 2, so that the meshing body 2 is kept on the retainer 3 and forms a complete one-way transmission device together with the outer ring 1; because the inner circle of the outer ring needs to be in contact with the meshing body (generally, the inner circle of the outer ring is in axial line contact), the outer side of the meshing body needs to be pre-stressed by an elastic piece, and a limiting clamping groove needs to be formed; in the structure, when the existing starting clutch one-way clutch transmits larger torque, the elastic piece 6 (generally a strip spring, applies inward pretightening force to a plurality of meshing bodies around one circle and is restrained on the retainer) is in contact with two ends of the circumferential direction of the groove bottom of the limiting clamping groove (has stress concentration), and impacts are formed in the processes of meshing and separating to generate deformation so as to damage the elastic piece, so that the one-way device fails; in the structure, two ends of the circumferential direction of the bottom of the limiting clamping groove 201 (the circumferential direction of the meshing body is consistent with the circumferential direction of the outer ring) are processed into inward chamfers 2011 and 2012, and the chamfers are arranged to enable two ends of the bottom of the limiting clamping groove 201 to be adaptive to the stress of the elastic piece, so that stress concentration is avoided, and the service life of the elastic piece is prolonged; the chamfer can be an arc chamfer protruding outwards or a flat chamfer, and the aim of the invention can be achieved; herein, the outer side, the inner side, the inward direction, the outward direction and the like refer to the radial direction of the one-way transmission device (taking an outer ring as a standard), and the circumferential direction refers to the circumferential direction of the one-way transmission device, which is not described in detail herein.
In this embodiment, the retaining assembly further includes an inner retaining ring 5, an outer retaining ring 4 and a retaining frame 3 for maintaining the distance between the engaging bodies 2, the inner retaining ring 5 and the outer retaining ring 4 are respectively located at two axial ends of the engaging bodies 2, and two axial ends of the retaining frame are respectively fixed with the inner retaining ring 5 and the outer retaining ring 4; the inner retaining ring 5 and the outer retaining ring 4 are respectively positioned at the two axial ends of the meshing body and used for supporting the retainer 3 and forming axial limit on the meshing body 2, which belongs to the prior art and is not described herein again; in the existing structure, only spacing relation and relative rotation exist between the inner retaining ring 5 and the outer retaining ring 4 and the retainer, and axial relative movement also exists between the inner retaining ring 5 and the outer retaining ring 4, thereby changing relative distance, and causing the meshing body of the one-way transmission device to be blocked.
In this embodiment, the body of the meshing body 2 is cylindrical, a meshing line and an overrunning line which are matched with the outer ring 1 are formed on the outer side of the meshing body, the outer circle on the inner side is used for contacting with the outer circle piece 7, so that one-way transmission matching is formed between the outer ring 1 and the outer circle piece 7, and the curvature radius R of the contact part of the meshing body 2 and the outer circle piece 7 is greater than the curvature radius R of the body of the meshing body; the structures of the meshing line and the exceeding line are the prior art and are not described again; because the curvature radius of the contact part of the meshing body and the outer circular part is larger than that of the body of the meshing body in the structure, the problems that the contact area of the meshing body and the outer circular part (in a starting system, the outer circular part is generally a disc tooth connecting shaft) is small and the capacity of transmitting torque is insufficient in the prior art are solved, and the transmission efficiency of the one-way transmission device is improved.
In this embodiment, the oil passage 101 is composed of an axial oil passing groove 1011 and a radial oil passing groove 1012, the axial oil passing groove 1011 is arranged on the outer circle of the outer ring and is arranged axially, the radial oil passing groove 1012 is arranged on the axial end face of the outer ring and is radially through, the axial oil passing groove 1011 is communicated with the radial oil passing groove 1012, and lubricating oil is collected by the axial oil passing groove and flows to the part where the meshing body is located from the radial oil passing groove, so that effective lubrication is formed, and the structure is simple and easy to process; the axial oil passing groove arranged axially can axially penetrate through the outer surface of the outer ring, and at least penetrates through the end surface provided with the radial oil passing groove, so that the axial oil passing groove and the radial oil passing groove are conveniently communicated; radial through means that the outer circle and the inner circle are penetrated on the axial end face of the outer ring to form a channel flowing to the meshing body.
In this embodiment, the connection between the axial oil passing groove 1011 and the radial oil passing groove 1012 is an arc chamfer transition, which facilitates the flow of the lubricating oil, thereby facilitating the formation of effective lubrication.
In this embodiment, the retainer 3 is formed by arranging a plurality of steel wires with both axial ends fixed to the inner retainer ring 5 and the outer retainer ring 4 along the circumferential direction, and a holding through groove for supporting the corresponding engaging body to the outside is formed between the adjacent steel wires; the steel wire refers to a rigid strip-shaped structural body, and the meshing body is required to be restrained in strength, so that the detailed description is omitted; in the prior art, the retainer is formed by a steel wire in a reciprocating and circuitous way along the axial direction, and the reciprocating circuitous ends are respectively corresponding to the inner retaining ring 5 and the outer retaining ring 4 and are axially restrained, so that the spacing between the inner retaining ring 5 and the retainer 3 and the spacing between the outer retaining ring 4 and the retainer 3 are ensured; in this structure, owing to adopt the spot welding structure, can needn't adopt the reciprocal circuitous structure of steel wire, and directly adopt steel wire (or billet) direct spot welding to take shape, the structure is whole comparatively firm, avoids taking place relative rotation.
In this embodiment, the plurality of steel wires are formed by axially and reciprocally winding one steel wire, and the axially end portion of the reciprocal winding is fixed to the inner retainer ring 5 and the outer retainer ring 4, as shown in the figure, the winding portion (point a shown in the figure) is fixed to the inner retainer ring 5 and the outer retainer ring 4 by welding; in the structure, the retainer is formed by adopting the existing steel wire structure, the circuitous parts at two ends are subjected to spot welding, the stability of the structure is ensured, and the manufacturing process is simplified.
The invention also discloses an engine a, which comprises a starting system, wherein the starting system comprises a starting motor (not shown in the figure) and the one-way transmission device b, and the starting motor outputs starting power through the one-way transmission device b; the structure of the engine is not described in detail herein, and except for the one-way transmission device using the present invention, the structure is understood by those skilled in the art, for example, the structure includes a cylinder, a piston connecting rod, and a crankshaft, and will not be described herein again.
In this embodiment, as shown in fig. 5, the starting system further includes a starting disk gear 8, the starting disk gear 8 is integrally formed with a central shaft sleeve 7 ', the one-way transmission device b is sleeved on the central shaft sleeve 7', the central shaft sleeve 7 'may be directly the outer circular member 7 (in this case, the one-way transmission device does not have the outer circular member 7), or the one-way transmission device 7' may have the outer circular member 7 and is sleeved on the central shaft sleeve, and an outer ring of the one-way transmission device b is in transmission fit with a magneto rotor 9 of the engine, so as to transmit the starting power to the crankshaft 10 through the magneto rotor 9; the central hub 7' is rotatably fitted (via bearings) around the crankshaft 10 of the engine.
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. A one-way transmission device is characterized in that: the gear comprises an outer ring and a plurality of meshing bodies, wherein the meshing bodies are arranged in the inner circle of the outer ring in the circumferential direction and used for enabling the outer ring and an outer circle part to form one-way transmission, and the outer ring is provided with an oil passage for guiding lubricating oil to the position of the meshing body.
2. A one-way transmission device according to claim 1, wherein: the meshing body is provided with a plurality of meshing bodies, the meshing bodies are arranged in a meshing mode, the meshing bodies are arranged in the meshing body in the meshing mode, the meshing bodies are provided with elastic parts, limiting clamping grooves used for containing the elastic parts and preventing the elastic parts from moving axially are formed in the outer sides of the meshing bodies, and inward chamfers are formed at two ends, in contact with the elastic parts and stressed, of groove bottoms of.
3. A one-way transmission according to claim 2, wherein: the retaining assembly further comprises an inner retaining ring, an outer retaining ring and a retaining frame for keeping the distance between the meshing bodies, the inner retaining ring and the outer retaining ring are respectively located at the two axial ends of the meshing bodies, and the two axial ends of the retaining frame are respectively fixed with the inner retaining ring and the outer retaining ring.
4. A one-way transmission device according to claim 1, wherein: the body of the meshing body is cylindrical, a meshing shape line and a surpassing shape line which are matched with the outer ring are formed on the outer side of the meshing body, the outer circle on the inner side of the meshing body is used for being in contact with the outer circle part, so that one-way transmission matching is formed between the outer ring and the outer circle part, and the curvature radius of the contact part of the meshing body and the outer circle part is larger than that of the body of the meshing body.
5. A one-way transmission device according to claim 1, wherein: the oil passage is crossed the oil groove by the axial and is radially crossed the oil groove and constitute, the axial is crossed the oil groove and is set up in the outer lane excircle and set up along the axial, radially cross the oil groove and set up in outer lane axial terminal surface and radially link up, just the axial is crossed the oil groove and is radially crossed the oil groove and communicate.
6. A one way transmission according to claim 5, wherein: the axial oil passing groove and the radial oil passing groove are communicated to form arc-shaped chamfer transition.
7. A one-way transmission according to claim 3, wherein: the retainer is formed by arranging a plurality of steel wires with two axial ends fixed on the inner retaining ring and the outer retaining ring along the circumferential direction, and an accommodating through groove used for supporting the corresponding meshing body to the outside is formed between the adjacent steel wires.
8. The unidirectional actuator of claim 7, wherein: the plurality of steel wires are formed by one steel wire in a reciprocating and roundabout mode, and the axial end portion of the reciprocating roundabout mode is fixed with the inner retaining ring and the outer retaining ring.
9. An engine, characterized in that: comprising a starting system comprising a starter motor and a one-way transmission according to any one of claims 1-8, said starter motor outputting a starting power through the one-way transmission.
10. A one-way transmission according to claim 9, wherein: the starting system also comprises a starting disc gear, the starting disc gear is integrally formed with a central shaft sleeve, the one-way transmission device is sleeved outside the central shaft sleeve, and the outer ring of the one-way transmission device is in transmission fit with a magneto rotor of the engine; the central shaft sleeve is rotatably matched with a crankshaft sleeved outside the engine.
CN202010912463.0A 2020-09-02 2020-09-02 One-way transmission device and engine Withdrawn CN111998016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010912463.0A CN111998016A (en) 2020-09-02 2020-09-02 One-way transmission device and engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010912463.0A CN111998016A (en) 2020-09-02 2020-09-02 One-way transmission device and engine

Publications (1)

Publication Number Publication Date
CN111998016A true CN111998016A (en) 2020-11-27

Family

ID=73464548

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010912463.0A Withdrawn CN111998016A (en) 2020-09-02 2020-09-02 One-way transmission device and engine

Country Status (1)

Country Link
CN (1) CN111998016A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08128465A (en) * 1994-11-01 1996-05-21 Nsk Warner Kk Lubricating mechanism for one-way clutch
JPH109291A (en) * 1996-06-21 1998-01-13 Nsk Warner Kk One-way clutch
US20030024786A1 (en) * 2001-08-01 2003-02-06 Nsk-Warner K.K. One-way clutch apparatus
JP4064488B2 (en) * 1996-04-25 2008-03-19 株式会社ユニバンス One-way clutch
CN204420071U (en) * 2014-12-26 2015-06-24 传仕重工(苏州)有限公司 A kind of selflubricating ratchet
CN208919131U (en) * 2018-08-20 2019-05-31 咸阳超越离合器有限公司 A kind of compact unidirectional torque overload protective device
CN110513404A (en) * 2018-05-21 2019-11-29 宁波麦思动力系统有限公司 A kind of one-way clutch and with gear hub motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08128465A (en) * 1994-11-01 1996-05-21 Nsk Warner Kk Lubricating mechanism for one-way clutch
JP4064488B2 (en) * 1996-04-25 2008-03-19 株式会社ユニバンス One-way clutch
JPH109291A (en) * 1996-06-21 1998-01-13 Nsk Warner Kk One-way clutch
US20030024786A1 (en) * 2001-08-01 2003-02-06 Nsk-Warner K.K. One-way clutch apparatus
CN204420071U (en) * 2014-12-26 2015-06-24 传仕重工(苏州)有限公司 A kind of selflubricating ratchet
CN110513404A (en) * 2018-05-21 2019-11-29 宁波麦思动力系统有限公司 A kind of one-way clutch and with gear hub motor
CN208919131U (en) * 2018-08-20 2019-05-31 咸阳超越离合器有限公司 A kind of compact unidirectional torque overload protective device

Similar Documents

Publication Publication Date Title
EP2488745B1 (en) One-way clutch and off-axis coupling for an engine starting system
EP2534388A1 (en) Engageable coupling assembly having reduced spin losses and method of assembling such assembly within an automotive transmission to reduce such losses
CN103769839B (en) Zigzag axle debris collector
CN111059244B (en) Full mechanical type self-adaptive automatic transmission
CN111998016A (en) One-way transmission device and engine
US20040026201A1 (en) Torque converter
KR101001126B1 (en) Starter for internal combustion engine
JP5425696B2 (en) Engine starter mechanism with one-way clutch
CN100400919C (en) Fluid coupling
US7278938B2 (en) Power transmission device
US5355982A (en) Starter drive for internal combustion engines
JP4893997B2 (en) One-way clutch
US4621720A (en) Dual start drive system
CN219932776U (en) Special-shaped channel transmission shaft assembly
JP3811813B2 (en) Pulley unit with one-way clutch
JP4543882B2 (en) One-way clutch
JP2004156676A (en) Power transmission for small vehicle
JP2005321022A (en) One-way clutch
US7195110B2 (en) One-way clutch unit
CN210830363U (en) Driving mechanism of transmission oil pump
JPH0225005Y2 (en)
CN101644320B (en) Unidirectional pulley
JP2003214524A (en) Torque converter
JP4389581B2 (en) Pulley unit with built-in clutch
US20080190728A1 (en) One-way clutch

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20201127