CN108506368B - Clutch control mechanism and internal transmission applied by same - Google Patents
Clutch control mechanism and internal transmission applied by same Download PDFInfo
- Publication number
- CN108506368B CN108506368B CN201710108815.5A CN201710108815A CN108506368B CN 108506368 B CN108506368 B CN 108506368B CN 201710108815 A CN201710108815 A CN 201710108815A CN 108506368 B CN108506368 B CN 108506368B
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- clutch
- control
- seat
- shaft
- pawl
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 73
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
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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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
- F16D41/125—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like the pawl movement having an axial component
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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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a clutch control mechanism and an internal transmission using the same, wherein a clutch is controlled through a control seat, a control rod and a control sleeve which are assembled on a shaft, other structures are not required to be processed on the shaft, the processing difficulty of shaft parts is reduced, meanwhile, the assembly modes between the control seat and the control rod and between the control rod and the control sleeve are more convenient, the cost of the internal transmission using the clutch control mechanism is reduced, in the internal transmission, the clutch simultaneously controls the clutch control between a planet carrier and an annular gear and between the annular gear and a hub, the internal structure of the transmission is simplified, the portability of the internal transmission is further improved, and the popularization and the application of the internal transmission are facilitated.
Description
Technical Field
The invention belongs to a transmission, and particularly relates to a clutch control mechanism and an internal transmission applied by the same.
Background
The inner speed changer controls clutch transmission between the inside of the transmission system and the hub through the clutch, and realizes speed ratio control of different gears. Because the inner speed changer is completely packaged in the hub, the required assembly structure is more complex, the processing difficulty of parts is high, and the production cost is high. And the speed change control end is positioned at the outer end part of the speed changer and is easy to be damaged by external force.
An improved hub axle of internal transmission and internal transmission with hub thereof as disclosed in the chinese patent document of 03204051.2, wherein the control of the clutch adopted comprises an inner sleeve and an outer sleeve sleeved on the hub axle, the axial clutch movement of the clutch is realized together by processing a special-shaped hollow path on the sleeve and a matched locating pin, the processing mode of the sleeve is complex, the locating pin and the sleeve are required to be assembled together and then sleeved on the hub axle in the assembling process, the assembling is difficult, the transmission mode of the locating pin is easy to be worn, and the service life of the internal transmission is limited.
As the use of internal transmissions on bicycles has become more and more widespread, it has become increasingly important how to reduce the manufacturing costs and assembly difficulties of the internal transmissions.
Disclosure of Invention
The invention solves the technical problems that: aiming at the defects of complex processing and high production cost of the existing clutch control structure of the internal transmission, the novel clutch control mechanism and the internal transmission applied by the novel clutch control mechanism are provided.
The invention is realized by adopting the following technical scheme:
the clutch control mechanism, clutch rotate and slip cover dress is on the axle, be equipped with two sets of clutch structure on the clutch, one of them clutch structure and a drive unit transmission are connected, and another clutch structure and another drive unit can be connected in a clutching way, control mechanism includes control sleeve, control lever and control seat, control sleeve and control seat suit are epaxial respectively, axial location is connected between control sleeve and the clutch to free rotation assembly between control sleeve and the clutch, the control seat is rotatory to be assembled on the axle to be connected with the control execution subassembly that realizes rotating along the circumference of axle, the axial direction slip setting of control lever along the axle sets up, axial location is connected between one end and the control sleeve, and the other end contacts with the control cam surface that sets up on the rotation circumference of control seat.
Furthermore, the control sleeve is embedded in the clutch inner hole, the outer wall of the control sleeve is provided with a flange, one side of the flange is abutted against the axial positioning step of the clutch inner wall, and the other side of the flange is connected with the axial positioning step in an axial positioning way through an axial positioning piece.
Further, a positioning hole is formed in the control sleeve, a positioning protruding block embedded in the positioning hole is arranged on the control rod, and the positioning hole and the positioning protruding block are assembled in a jogged mode, so that axial positioning connection between the control rod and the control sleeve is achieved.
Further, the distal end of the control sleeve-connected control rod is connected to a shoulder on the shaft by a compressed spring.
Further, an axial chute is arranged on the shaft, and the control rod is embedded in the chute in a sliding manner.
The inner speed changer comprises a planetary gear train and a clutch, wherein the planetary gear train is packaged inside the hub, and the clutch is arranged between the power input seat and a planet carrier of the planetary gear train and is applied with the clutch control mechanism;
in addition, an inner gear ring of the planetary gear train is matched with the inner wall of the hub through a first pawl, the inner gear ring is also matched with a power input seat through a second pawl, and the planet carrier is matched with the inner wall of the hub through a third pawl;
the first pawl, the second pawl and the third pawl are kept in a sprung state through a pressure spring, and a slope structure for controlling the first pawl to be pressed down is arranged on the clutch.
Further, the central wheel and the shaft of the planetary gear train are of an integrated structure.
Furthermore, a constant-combination transmission state is formed between one end of the clutch and the power input seat through a sliding jaw structure, and clutch fit is formed between the other end of the clutch and the planet carrier through a jaw clutch structure; the slope structure is contacted with the first pawl in the process of separating the clutch from the planet carrier, and the first pawl is controlled to be sprung and then matched with the inner wall of the hub.
Further, the middle position of the first pawl is arranged on the inner gear ring through a pin shaft, the outer end of the first pawl is sprung through a pressure spring to be embedded with a ratchet groove on the inner wall of the hub, and the other end of the first pawl is contacted with a slope structure penetrating through the inner gear ring and the clutch.
In the invention, the control execution assembly of the clutch control mechanism comprises a pull rope seat arranged at the outer end of the hub, the pull rope seat is rotationally sleeved at the end part of the shaft and is assembled with the control seat in a coaxial rotary transmission manner, and the control seat is rotationally arranged on the shaft through a mounting sleeve.
Further, the control execution assembly further comprises a pull rope guide plate, the pull rope guide plate is fixedly mounted on the shaft through a guide plate mounting seat, the guide plate mounting seat is axially fixed on the shaft through a fixing nut, the guide plate mounting seat is positioned in an inner mounting ring of the pull rope seat, the pull rope guide plate is circumferentially fixed with the guide plate mounting seat and axially fixed through an axial clamping ring, the pull rope seat is rotatably mounted on the guide plate mounting seat, and a pull rope connected with the gear control power assembly is connected with the pull rope seat through the pull rope guide plate.
The clutch is controlled by adopting the control seat, the control rod and the control sleeve which are assembled on the shaft, other structures do not need to be processed on the shaft, the processing difficulty of shaft parts is reduced, meanwhile, the assembly mode between the control seat and the control rod and between the control rod and the control sleeve is more convenient, the cost of an internal transmission using the clutch control mechanism is reduced, in the internal transmission, the clutch simultaneously controls the clutch control between the planet carrier and the annular gear and between the annular gear and the hub, the internal structure of the transmission is simplified, the portability of the internal transmission is further improved, and the popularization and the application of the internal transmission are facilitated.
The invention is further described below with reference to the drawings and detailed description.
Drawings
Fig. 1 is an assembled schematic view of a clutch control mechanism in an embodiment.
FIG. 2 is an exploded schematic view of a clutch control mechanism in an embodiment.
Fig. 3 is a schematic diagram of an on-axis assembly of a clutch control mechanism and clutch in an embodiment.
Fig. 4 is a schematic view of the shaft structure in the embodiment.
FIG. 5 is a schematic diagram of an internal transmission assembly for use in an embodiment.
FIG. 6 is a first gear state schematic of the internal transmission of the embodiment.
FIG. 7 is a schematic illustration of a first pawl condition of the inner transmission in a first gear in an embodiment.
Fig. 8 is a second gear state schematic of the internal transmission in the embodiment.
FIG. 9 is a schematic diagram of a first pawl condition of the inner transmission in the second gear in accordance with the embodiment.
FIG. 10 is a third gear state schematic of the internal transmission of the embodiment.
FIG. 11 is an exploded view of the control execution components of the internal transmission of the embodiment.
Reference numerals in the drawings:
1-clutch, 101-first clutch structure, 102-second clutch structure, 103-ramp structure, 1031-low level surface, 1032-high level surface, 104-axial positioning step, 11-control sleeve, 111-flange, 112-positioning hole, 12-control lever, 121-pushing end, 122-positioning projection, 13-control seat, 131-control cam surface, 14-spring, 15-axial positioning member,
21-an inner gear ring, 211-a first pawl, 212-a second pawl, 213-a third pawl, 22-a planet carrier, 23-a sun gear,
3-shaft, 301-shaft shoulder, 302-axial chute, 303-rotary mounting section,
4-flower drum, 401-ratchet groove, 41-bead frame component,
5-a power input seat, wherein the power input seat is provided with a power input seat,
6-control execution assembly, 61-stay cord seat, 62-stay cord deflector, 63-deflector mount, 64-control torsional spring, 65-installation sleeve, 66-axial snap ring, 67-fixation nut.
Detailed Description
Examples
Referring to fig. 1, 2 and 3, the clutch 1 in this embodiment is a dog clutch mounted on a shaft, the clutch 1 is rotatably mounted on the shaft 3, and the inner ring of the clutch 1 is mounted with a control sleeve 11, a control rod 12, a control seat 13, a spring 14, an axial positioning member 15 and other components for controlling the clutch 1 to linearly move along the axis direction of the shaft 3, so as to realize clutch action, and meanwhile, the clutch is not influenced to directly transmit rotation power between two transmission components.
Specifically, the control sleeve 11 and the clutch 1 are coaxially sleeved on the shaft 3, the control sleeve 11 can axially slide relative to the shaft 3 and the clutch 1, the control sleeve 11 is a sleeve member with a flange 111 with a step structure, the control sleeve 11 is assembled between the inner ring of the clutch 1 and the shaft 3, one axial direction positioning between the clutch 1 and the control sleeve 11 is realized by contacting one step end surface of the flange 111 with an axial positioning step 104 of the inner ring of the clutch 1, a groove for assembling an axial positioning piece 15 is further arranged on the inner ring of the clutch 1, the axial positioning piece 15 can be an axial positioning snap ring, the other axial direction positioning between the clutch 1 and the control sleeve 11 is realized by contacting the other end surface of the flange 111 by assembling the axial positioning piece 15, and finally, the direct reliable axial positioning between the clutch 1 and the control sleeve 11 is realized together, namely, the control sleeve 11 can control the clutch 1 to slide left and right along the axial direction of the shaft 3. Meanwhile, clearance fit is adopted between the outer ring of the control sleeve 11 and the inner ring of the clutch 1, and between the flange 111 and the axial positioning step 104 and the axial positioning piece 15 of the clutch 1, so that free rotation assembly between the clutch 1 and the control sleeve 11 is realized, namely, the control sleeve 11 does not influence rotation transmission of the clutch 1.
The control seat 13 is a rotary member rotatably sleeved on the shaft 3, a control cam surface 131 with a height difference is arranged on the rotation circumference of the control seat 13, the control cam surface 131 is arranged on a rotary end surface opposite to the control sleeve 11, the vertical distance between a point on the control cam surface 131 and the control sleeve 11 is changed through the height difference on the control cam surface 131, and the control seat 13 pushes the control sleeve 11 to axially slide through a control rod 12 axially sliding and positioning on the shaft 3 so as to drive the clutch 1 to axially act.
The control rod 12 is a rod-shaped member, and two ends of the control rod are respectively connected with the control sleeve 11 and the control seat 13. Specifically, the end of the control rod 12 close to the control seat 13 is a pushing end 121 with a round head, the pushing end 121 contacts with a control cam surface 131 of the control seat 13 to form a cam pair cooperation with the control seat 13, a positioning lug 122 is arranged at the end of the control rod 12 close to the control sleeve 11, correspondingly, a positioning hole 112 is arranged at the inner ring of the control sleeve 11, the positioning lug 122 is embedded with the positioning hole 112, axial positioning connection is realized between the control rod 12 and the positioning sleeve 11, and the control cam surface 131 pushes the control rod 12 to axially move along with the rotation of the control seat 13 to drive the control sleeve 11 to axially linearly slide.
Referring to fig. 4, a rotary mounting section 303 for rotatably assembling the control sleeve 11 is arranged on the shaft 3, the diameter of the rotary mounting section 303 is larger than the outer diameter of the shaft section of the control seat 13 at one end, an axial sliding groove 302 is axially formed in the rotary mounting section 303, the control rod 12 is slidably embedded in the axial sliding groove 302, the control rod 12 is slidably limited along the axial direction of the shaft 3, meanwhile, the control rod 12 is partially embedded in the shaft 3, the control rod 12 is prevented from occupying too much space of the inner ring of the control sleeve 11, and the radial size of the control inner ring can be effectively reduced.
The control sleeve 11, the control rod 12 and the control seat 13 cooperate to push the clutch from right to left in fig. 3, and the compressed spring 14 is used to push the clutch axially back from left to right. The shaft 3 at one end of the control sleeve 11 far from the control seat 13 is provided with a shaft shoulder 301, a compressed spring 14 is arranged between the shaft shoulder 301 and the control sleeve 11, and the compressed spring 14 is used for driving the control sleeve 11 to return to the right after the control seat 13 pushes the control sleeve 11 to the left.
Referring to fig. 5 and fig. 1-4, the internal transmission in the drawings is a preferred implementation of the clutch and clutch control mechanism according to the present embodiment, and includes a planetary gear train, a clutch 1, a shaft 3, a hub 4, a power input seat 5 and a control executing component 6, the shaft 3 is a wheel shaft, the planetary gear train is packaged between the shaft 3 and the hub 4, the power input seat 5 is connected with a power input end of the planetary gear train through the clutch 1, and the control executing component 6 is used for controlling a control seat 13 in the clutch control mechanism.
Specifically, the planetary gear train in the present embodiment includes an annular gear 21, a first pawl 211, a second pawl 212, a carrier 22, a sun gear 23, and a plurality of planetary gears. The inner ring of the ring gear 21 is assembled with the power input seat 5 through a single transmission, the power input seat 5 is connected with a power input transmission part connected with the outside of the internal transmission, such as a flywheel, the ring gear 21 is in unidirectional transmission fit with the inner wall of the hub 4 through a first pawl 211, the outer ring of the planet carrier 22 is in unidirectional transmission fit with the inside of the hub 4 through a third pawl 213, and the unidirectional transmission fit in this embodiment is a transmission direction for driving the wheel connected with the hub 4 to rotate forwards. Here, the first pawl 211, the second pawl 212, and the third pawl 213 are assembled by a compression spring, and keep the initial state as the sprung state (i.e. the unidirectional transmission state), and specifically how to assemble the pawls by the compression spring is a common technical means in the internal transmission, which is not described in detail herein.
The power input end of the planetary gear train can be an inner gear ring 21 or a planet carrier 22 according to different gear positions, the clutch 1 in the embodiment is arranged between the power input seat 5 and the planet carrier 22, and referring to fig. 2 again, the clutch 1 in the embodiment is respectively provided with a first clutch structure 101 and a second clutch structure 102 at two ends, wherein the first clutch structure 101 is a plurality of protrusions arranged on the circumference of the end surface of the clutch, a plurality of grooves arranged on the end surface of the inner ring of the planet carrier 22 are mutually embedded, and can be separated and combined, the second clutch structure 102 is a plurality of protrusions arranged on the outer circumference of the other end surface of the clutch, and is slidably embedded with a plurality of axial grooves arranged on the inner ring of the power input seat 5, so that a sliding jaw structure in a normally combined state is formed, and the second clutch structure 102 keeps a power transmission state with the power input seat 5 all the time in the process of separating or combining the first clutch structure 101 and the planet carrier 22.
The clutch 1 of the present embodiment is engaged with the planet carrier through the ring gear 21, a slope structure 103 is further provided on the outer ring of the clutch 1 along the circumferential direction, the clutch outer diameter of one side of the slope structure 103 is larger than the clutch outer diameter of the other side, the slope structure 103 is connected with each other, a low level surface 1031 (larger clutch outer diameter) and a high level surface 1032 (smaller clutch outer diameter) are respectively formed on two sides of the slope structure 103, the slope structure 103 is contacted with the first pawls 211 provided between the ring gear 21 and the hub 4, and the first pawls 211 can be controlled to be changed from the sprung state to the depressed state.
As shown in fig. 7 and 9, the middle position of the first pawl 211 is rotatably arranged on the inner gear ring 21 through a pin shaft, the outer ratchet end of the first pawl 211 is sprung up through a pressure spring to be embedded with a ratchet groove on the inner wall of the hub to form unidirectional transmission, the inner side of the first pawl 211 passes through the inner gear ring 21 to contact with the outer diameter of the clutch, and the outer side of the first pawl 211 is pressed down through the lever effect through the transformation between the high-level surface and the low-level surface at the two ends of the slope structure 103 to separate the inner gear ring 21 from the hub 4.
In this embodiment, the three-speed internal transmission is provided, the center wheel 23 is not required to be controlled, the center wheel 23 and the shaft 3 are fixedly assembled, and in order to save the assembly cost, the center wheel 23 can be integrally formed on the shaft 3.
The gear drive state of the three-speed internal transmission of the present embodiment is described in detail below with reference to fig. 6 to 10.
When the lower position of the control cam surface of the control seat 13 contacts with the control rod, the control sleeve 11 and the clutch 1 are pushed and pushed to the right under the action of the spring 14, at this time, the clutch 1 and the planet carrier 22 are in a power separation state, the upper position surface 1032 of the slope structure 103 of the clutch contacts with the inner side of the first pawl 211, the first pawl 211 is controlled to be in a pressing state, so that the space between the annular gear 21 and the hub 4 is in a power separation state, at this time, power enters from the power input seat 5 and is transmitted to the annular gear 21 through the second pawl 212, the annular gear 21 transmits rotary power into the planetary gear train to perform speed reduction transmission, and then the planetary carrier 22 outputs the rotary power to the hub 4 through the third pawl to drive the wheels connected with the hub to rotate, the gear is in a low gear, the power transmission route is shown by an arrow in fig. 6, and the state of the first pawl 211 is shown in fig. 7.
When the middle position of the control cam surface of the control seat 13 contacts with the control rod, the control seat 13 pushes the control sleeve 11 to approach to the planet carrier on the left side through the control rod 12, at this time, the clutch 1 and the planet carrier 22 are still in a separated state, but in the process of moving the clutch 1 to the left, the contact position of the outer ring of the clutch 1 and the inner side of the first pawl 211 is changed to the low position surface 1031 through the slope structure 103 by the high position surface 1032, the inner side of the first pawl 211 loses the restriction of the clutch, and is sprung up under the action of the self pressure spring, the unidirectional power transmission state is changed between the inner ring 21 and the flower drum 4, at this time, power enters from the power input seat 5 and is directly transmitted to the flower drum 4 through the first pawl 211 to drive the wheel connected with the flower drum to rotate, the gear is a direct gear, the rotation speed of the flower drum 4 exceeds the rotation speed of the planet carrier 22, the third pawl 213 is overrun, the power transmission route is shown by an arrow in fig. 8, the state of the first pawl is shown in fig. 9.
The high position of the control cam surface of the gear control seat 13 is contacted with the control rod, the control seat 13 continuously pushes the control sleeve 11 to approach to the planet carrier at the left side through the control rod 12, the clutch 1 and the planet carrier 22 are changed into a combined state, at the moment, the inner side of the first pawl 211 is kept in contact with the low position surface of the outer ring of the clutch 1, the inner gear ring 21 and the hub 4 are in a unidirectional power transmission state, at the moment, power enters from the power input seat 5 and is transmitted to the planet carrier 22 through the clutch 1, the planet carrier 22 transmits rotary power into the planetary gear train to perform speed-increasing transmission, then the inner gear ring 22 is output to the hub 4 through the first pawl 211 to drive wheels connected with the hub to rotate, the gear is in a speed-increasing gear, the rotational speed of the hub 4 and the inner gear ring 21 exceeds the rotational speed of the power input seat 5, the second pawl 212 is overrunned, the power transmission route is shown by an arrow in fig. 10, and the state of the first pawl 211 is still shown by an arrow in fig. 9.
As shown in fig. 11, in the internal transmission, the control actuator 6 of the clutch control mechanism includes a rope seat 61, a rope guide 62, a guide mount 63, a control torsion spring 64, a mount sleeve 65, an axial snap ring 66, and a fixing nut 67. The pull rope seat 61 and the control seat 13 are rotatably mounted at the end part of the shaft 3 through the mounting sleeve 65 and are rotatably assembled with the flower drum through the bead frame assembly 41, the pull rope seat 61 and the mounting sleeve 65 and the control seat 13 are respectively connected through a circumferential positioning structure, the pull rope seat 61 is connected with a pull rope system outside the internal transmission, the pull rope seat 61 is driven to rotate circumferentially relative to the shaft 3 through a pull rope, the control seat 13 of the clutch control mechanism is driven to rotate, and meanwhile, the pull rope seat 61 is connected with the shaft 3 through the control torsion spring 64, so that elastic return of the pull rope seat 61 is realized. The stay cord deflector 62 is through the outside of deflector mount 63 circumference location assembly at stay cord seat 61 for the axial positioning of stay cord seat simultaneously, still be used for leading the stay cord to introduce the stay cord seat, pass through the circumferential location assembly of non-round flat position between deflector mount 63 and the axle 3, realize location assembly through circumference gomphosis's arch and recess between stay cord deflector 62 and the deflector mount 63, simultaneously, set up axial snap ring 66 in the outside of deflector mount 63, as the axial location assembly of stay cord deflector 62, the spiro union fixation nut 67 on the axle 3 in the deflector mount 63 outside realizes the axial locking of whole clutch control mechanism and control execution subassembly at axle 3. The guide plate mounting seat 63 is fitted into the inner ring of the rope pulling seat 61, and when the flywheel is replaced: the stay cord guide plate 62 and the stay cord seat 61 can be taken out by taking out the axial snap ring 66, so that the flywheel connected with the power input seat of the internal transmission can be replaced without disassembling the nut, and the assembly of the internal structure can not be influenced.
The internal transmission to which the present invention is applied may be applied to hubs including bicycles, electric-powered bicycles or motorcycles, and is not limited to the three-speed internal transmission described in the present embodiment, and those skilled in the art may adopt various similar embodiments of the above embodiments within the scope of the claims depending on the transmission ratio, and the present embodiment is not specifically exemplified herein.
Claims (9)
1. The clutch control mechanism is characterized in that the clutch is rotationally and slidingly sleeved on the shaft, two groups of clutch structures are arranged on the clutch, one group of clutch structures is in transmission connection with one transmission part, the other group of clutch structures is in clutch connection with the other transmission part,
the control mechanism comprises a control sleeve, a control rod and a control seat, wherein the control sleeve and the control seat are respectively sleeved on a shaft, the control sleeve is axially positioned and connected with the clutch, the control sleeve and the clutch are assembled in a free rotation manner, the control seat is rotatably assembled on the shaft and connected with a control execution assembly which realizes circumferential rotation along the shaft, the control rod is slidably arranged along the axial direction of the shaft, one end of the control rod is axially positioned and connected with the control sleeve, and the other end of the control rod is contacted with a control cam surface arranged on the rotation circumference of the control seat; the control sleeve is embedded in the clutch inner hole, a flange is arranged on the outer wall of the control sleeve, one side of the flange is abutted to an axial positioning step on the inner wall of the clutch, and the other side of the flange is connected with the axial positioning step in an axial positioning mode through an axial positioning piece.
2. The clutch control mechanism according to claim 1, wherein the control sleeve is provided with a positioning hole, the control rod is provided with a positioning lug embedded in the positioning hole, and the positioning hole and the positioning lug are assembled in a jogged manner to realize axial positioning connection between the control rod and the control sleeve.
3. The clutch control mechanism of claim 2 wherein the distal end of the control sleeve-attached lever is connected to a shoulder on the shaft by a compressed spring.
4. A clutch control mechanism according to claim 3, wherein the shaft is provided with an axial chute in which the lever is slidably received.
5. An internal transmission comprising a planetary gear train enclosed inside a hub, and a clutch provided between a power input seat and a carrier of the planetary gear train, characterized in that the clutch applies the clutch control mechanism according to any one of claims 1 to 4;
the central wheel of the planetary gear train is fixedly connected with the shaft, the inner gear ring of the planetary gear train is matched with the inner wall of the hub through a first pawl, the inner gear ring is also matched with the power input seat through a second pawl, and the planet carrier is matched with the inner wall of the hub through a third pawl;
the first pawl, the second pawl and the third pawl are kept in a sprung state through a pressure spring, and a slope structure for controlling the first pawl to be pressed down is arranged on the clutch.
6. The internal transmission according to claim 5, wherein a normally engaged transmission state is formed between one end of the clutch and the power input seat by a sliding jaw structure, and a clutch engagement is formed between the other end of the clutch and the carrier by a jaw clutch structure;
the slope structure is contacted with the first pawl in the process of separating the clutch from the planet carrier, and the first pawl is controlled to be sprung and then matched with the inner wall of the hub.
7. The inner transmission according to claim 6, wherein the intermediate position of the first pawl is disposed on the inner gear ring through a pin, the outer end of the first pawl is sprung by a compression spring to be engaged with a ratchet groove of the inner wall of the hub, and the other end is contacted with a slope structure penetrating through the inner gear ring to be engaged with the clutch.
8. The internal transmission according to any one of claims 5 to 7, wherein the control actuating assembly of the clutch control mechanism comprises a rope pulling seat provided at an outer end of the hub, the rope pulling seat being rotatably fitted at an end of the shaft and being rotatably fitted coaxially with the control seat, the control seat being rotatably mounted on the shaft by means of a mounting sleeve.
9. The internal transmission of claim 8, wherein the control execution assembly further comprises a pull rope guide plate fixedly mounted on the shaft by a guide plate mounting seat located in the inner ring of the pull rope seat, the guide plate mounting seat is axially fixed on the shaft by a fixing nut, the pull rope guide plate is circumferentially fixed with the guide plate mounting seat and axially fixed by an axial snap ring, the pull rope seat is rotatably mounted on the guide plate mounting seat, and a pull rope connected with the gear control power assembly is connected with the pull rope seat by the pull rope guide plate.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108815.5A CN108506368B (en) | 2017-02-27 | 2017-02-27 | Clutch control mechanism and internal transmission applied by same |
| PCT/CN2017/106984 WO2018153117A1 (en) | 2017-02-27 | 2017-10-20 | Clutch control mechanism and internal transmission using same |
| TW106142339A TWI658964B (en) | 2017-02-27 | 2017-12-04 | Clutch control mechanism and inner transmission having the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108815.5A CN108506368B (en) | 2017-02-27 | 2017-02-27 | Clutch control mechanism and internal transmission applied by same |
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| Publication Number | Publication Date |
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| CN108506368A CN108506368A (en) | 2018-09-07 |
| CN108506368B true CN108506368B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710108815.5A Active CN108506368B (en) | 2017-02-27 | 2017-02-27 | Clutch control mechanism and internal transmission applied by same |
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| Country | Link |
|---|---|
| CN (1) | CN108506368B (en) |
| TW (1) | TWI658964B (en) |
| WO (1) | WO2018153117A1 (en) |
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| CN206600385U (en) * | 2017-02-27 | 2017-10-31 | 李激初 | Clutch control mechanism and its internal speed changer of application |
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- 2017-02-27 CN CN201710108815.5A patent/CN108506368B/en active Active
- 2017-10-20 WO PCT/CN2017/106984 patent/WO2018153117A1/en active Application Filing
- 2017-12-04 TW TW106142339A patent/TWI658964B/en active
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| CN1495089A (en) * | 2000-03-10 | 2004-05-12 | ��ʽ���絺Ұ | Bicycle hub transmission device with sun gear guide |
| CN2604335Y (en) * | 2003-02-11 | 2004-02-25 | 日驰企业股份有限公司 | Improved internal speed variator wheels hub shaft and the internal speed variator with the same hub |
| CN201254436Y (en) * | 2008-07-10 | 2009-06-10 | 川方企业股份有限公司 | Winch engaging and disengaging gear |
| CN103569306A (en) * | 2013-11-19 | 2014-02-12 | 李激初 | Inner speed changer of bicycle |
| WO2015074444A1 (en) * | 2013-11-19 | 2015-05-28 | 李激初 | Internal speed changer of bicycle |
| TW201620780A (en) * | 2014-12-12 | 2016-06-16 | Univ Nat Yunlin Sci & Tech | Bicycle five-speed inner gearshift mechanism |
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| CN206600385U (en) * | 2017-02-27 | 2017-10-31 | 李激初 | Clutch control mechanism and its internal speed changer of application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108506368A (en) | 2018-09-07 |
| WO2018153117A1 (en) | 2018-08-30 |
| TW201831803A (en) | 2018-09-01 |
| TWI658964B (en) | 2019-05-11 |
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