CN108119606A - Bicycle freewheel - Google Patents
Bicycle freewheel Download PDFInfo
- Publication number
- CN108119606A CN108119606A CN201810120075.1A CN201810120075A CN108119606A CN 108119606 A CN108119606 A CN 108119606A CN 201810120075 A CN201810120075 A CN 201810120075A CN 108119606 A CN108119606 A CN 108119606A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- housing
- core
- flywheel
- bicycle freewheel
- 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.)
- Pending
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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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
- B62M1/00—Rider propulsion of wheeled vehicles
- B62M1/10—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
Abstract
The present invention relates to bicycle freewheels, including flywheel body, flywheel body includes housing, fly core, it is very heavy, very heavy spring and multilayer rolling bearing, fly in-core in the pilot hole of housing, the external tooth for being useful for being connected with chain is uniformly distributed on the outer ring surface of housing, ratchet is evenly distributed on the inner ring surface of housing, it is very heavy to be hinged on the outer ring surface of winged core, with ratchet engagement, multilayer rolling bearing includes internal layer axle sleeve, axle sleeve among outer layer axle sleeve and at least one layer being arranged between outer layer axle sleeve and internal layer axle sleeve, rolling member is separately installed between every two layers adjacent of axle sleeve, wherein, outer layer axle sleeve is so as to follow the mode that winged core rotates to be embedded in the pilot hole of winged core.Flywheel structure provided by the invention is simple, compared to freewheel, and the velocity of rotation as driven wheel faster, is installed more laborsaving during the cycling of the bicycle freewheel.
Description
Technical field
The present invention relates to bicycle accessories field, more particularly, to a kind of bicycle freewheel.
Background technology
Bicycle freewheel is mounted in the colyliform accumulator having compared with large rotating inertia on bicycle rear axle.Work as bicycle
When rear wheel rotation speed increases, the kinetic energy of bicycle freewheel increases, and energy storage or saving is got up；When bicycle rear rotating speed reduces, from
The kinetic energy of driving flywheel is reduced, and energy is released, and is had appropriate rotary inertia, plays storage and is discharged kinetic energy
Revolving member can advance with motor car wheel and freely reverse idle running, can have a rest power indirectly.
However, the problem of bicycle freewheel generally existing velocity of rotation of the prior art is slow.
The content of the invention
The present invention is to propose in view of the above problems, and its purpose is to provide one kind can accelerate travel speed, makes to ride
The more effortless bicycle freewheel of row.
The following technical scheme is adopted to achieve the purpose of the present invention.
The invention of technical solution 1 is a kind of bicycle freewheel, including flywheel body.
The flywheel body includes housing, flies core, is very heavy, very heavy spring and multilayer rolling bearing.
The housing and the winged core are respectively formed as the annular with respective pilot hole, and the winged in-core is embedded in institute
State the inside of the pilot hole of housing.
The external tooth for being useful for being connected with chain is uniformly distributed on the outer ring surface of the housing, in the inner ring surface of the housing
On be evenly distributed with ratchet.
It is described very heavy to be hinged on pawl on the outer ring surface of the winged core.
One end of the very heavy spring is connected with the outer ring surface of the winged core, and the other end of the very heavy spring very heavy is supported with described
Connect, under the action of the very heavy spring, it is described it is very heavy can be with the ratchet engagement.
The multilayer rolling bearing includes multilayer bearing bush, and axle sleeve described in multilayer includes internal layer axle sleeve, outer layer axle sleeve and setting
Axle sleeve among at least one layer between the outer layer axle sleeve and the internal layer axle sleeve, between every two layers adjacent of axle sleeve
Rolling member is separately installed with, wherein, the outer layer axle sleeve is so as to follow the mode that the winged core rotates to be embedded in the winged core
The inside of pilot hole.
Along the central axial direction of the winged core, using one end of the winged core as the top of the flywheel body, with described
The other end for flying core is the bottom of the flywheel body.
At the position between the housing and the internal layer axle sleeve at the top of the flywheel body covered with flywheel
Head cover is provided with the bearing seal end cap that can cover the multilayer rolling bearing in the bottom of the flywheel body.
In addition, the bicycle freewheel of technical solution 2, in the bicycle freewheel of technical solution 1, in every two layers adjacent of institute
It states and is also separately installed with the rolling member retainer for separating each rolling member between axle sleeve.
In addition, the bicycle freewheel of technical solution 3, in the bicycle freewheel of technical solution 2, in every two layers adjacent of institute
State also being installed respectively positioned at the position of the top side of the rolling member and positioned at the position of the bottom side of the rolling member between axle sleeve
There is sealing ring.
In addition, the bicycle freewheel of technical solution 4, in the bicycle freewheel of technical solution 1, in the flywheel head cover
And/or it is provided with to inject the oil filler point of lubricating oil to the rolling member on the bearing seal end cap.
In addition, the bicycle freewheel of technical solution 5, in the bicycle freewheel of technical solution 1, in the flywheel head cover
And/or it is provided with locating groove on the bearing seal end cap.
In addition, the bicycle freewheel of technical solution 6, in the bicycle freewheel of technical solution 1, the outer layer axle sleeve and institute
Winged core is stated to be fixedly connected.
In addition, the bicycle freewheel of technical solution 7, in the bicycle freewheel of technical solution 1, in the assembling of the housing
The annular surface in hole positioned at the top side of the ratchet and the position of the bottom side of the ratchet, be respectively arranged with the dress along the housing
The annular surface of distribution multiple steel bowls that circumferentially shape is distributed, steel ball is separately installed in the inside of each steel bowl.
In addition, the bicycle freewheel of technical solution 8, in the bicycle freewheel of technical solution 7, in the assembling of the housing
The annular surface in hole be also respectively provided with to separate positioned at the position of the top side of the ratchet and the bottom side of the ratchet it is each
The steel ball retainer of the steel ball.
In addition, the bicycle freewheel of technical solution 9, in the bicycle freewheel of technical solution 1, the flywheel head cover and institute
It states and is spirally connected at the top of internal layer axle sleeve, the bottom of the bearing seal end cap and the internal layer axle sleeve is spirally connected.
In addition, the bicycle freewheel of technical solution 10, in the bicycle freewheel of technical solution 1, along from the flywheel sheet
Bottom from the top of body to the flywheel body extend direction, the external tooth have at least two layers and/or, along from it is described fly
The direction that the top of body extends to the bottom of the flywheel body is taken turns, the ratchet has at least two layers.
Compared with the problem of bicycle freewheel generally existing velocity of rotation of the prior art is slow, the present invention has and has as follows
Beneficial effect.
According to the invention of technical solution 1, a kind of bicycle freewheel is provided, including flywheel body and flywheel lid.
Flywheel body includes housing, flies core, is very heavy, very heavy spring and multilayer rolling bearing.
Housing and winged core are respectively formed as the annular with respective pilot hole, and fly in-core embedded in the pilot hole of housing
It is internal.The external tooth for being useful for being connected with chain is uniformly distributed on the outer ring surface of housing, is uniformly distributed on the inner ring surface of housing
There is ratchet.Very heavy is the pawl being hinged on the outer ring surface of winged core.One end of very heavy spring is connected with the outer ring surface of winged core, very heavy spring
The other end abutted with very heavy, under the action of very heavy spring, it is very heavy can be with ratchet engagement.Multilayer rolling bearing includes multilayer axis
Set, multilayer bearing bush include internal layer axle sleeve, outer layer axle sleeve and are arranged at least one layer of intermediate between outer layer axle sleeve and internal layer axle sleeve
Axle sleeve is separately installed with rolling member between every two layers adjacent of axle sleeve, wherein, outer layer axle sleeve is so as to follow what winged core rotated
Mode is embedded in the inside of the pilot hole of winged core.
It is winged using the other end for flying core to fly top of the one end as flywheel body of core along the central axial direction for flying core
The bottom of body is taken turns, at the position between housing and internal layer axle sleeve at the top of flywheel body covered with flywheel head cover,
The bottom of flywheel body is provided with the bearing seal end cap that can cover multilayer rolling bearing.
Its operation principle is：When riding, foot-operated when stepping on forward, chain-driving housing rotates forward, at this moment, the spine of housing
Tooth is engaged with very heavy, and the rotatory force of housing passes to winged core by very heavy, and the outer layer axle sleeve that winged core ribbon moves multilayer rolling bearing turns
It is dynamic, and pass through rolling member and pass to intermediate axle sleeve and internal layer axle sleeve successively, finally, by internal layer axle sleeve rear axle is driven to rotate；When stopping
When only trampling, chain and housing do not rotate, and trailing wheel still drives rear axle to rotate forward under effect of inertia, drive multilayer rolling
The internal layer axle sleeve of dynamic bearing rotates, and passes through rolling member and pass to intermediate axle sleeve and outer layer axle sleeve successively, drive as a result, fly core and
Very heavy to rotate forward, when very heavy top slides into the tooth top of ratchet, very heavy spring is compressed at most, continues to slide, it is very heavy just by
Very heavy spring bounces back into the root portion of ratchet, sends " rattling away " sound, treats that sound disappears, can continue to ride.
In the present invention, the sliding friction between rear axle and winged core can be become rolling by the application of the structure of multilayer rolling bearing
Dynamic friction, so as to when trampling foot-operated, improve the transmission efficiency of flywheel, and then improve rear wheel rotation speed；It is meanwhile common with installing
Bicycle freewheel compare, the whole sensitivity of bicycle freewheel can be improved, reduction rides and should be flywheel offer in initial procedure
Starting force；In addition, kinetic energy rejection when rubbing between rear axle and winged core can be reduced, the accumulation of energy function of flywheel entirety is improved, is prolonged
Length is had a rest the power time indirectly, is ridden more effortless.
According to the invention of technical solution 2, also it is separately installed with to separate each rolling between every two layers adjacent of axle sleeve
The rolling member retainer of moving part, has the following advantages that：1. it guides and rolling member is driven to be rolled on correct raceway；It 2. will rolling
Moving part is equally spaced, collides with each other and rubs between rolling member when being distributed on the circumference of raceway to prevent work；3. it will roll
Part is together with sleeve combination, to prevent rolling member from coming off.
According to the invention of technical solution 3, between every two layers adjacent of axle sleeve positioned at the position of the top side of rolling member and
The position of the bottom side of rolling member is also separately installed with sealing ring, can prevent external sand and dust from making to rolling member by sealing ring as a result,
Into abrasion.
According to the invention of technical solution 4, it is provided with to note to rolling member on flywheel head cover and/or bearing seal end cap
Enter the oil filler point of lubricating oil, can fully keep the lubrication between rolling member as a result, improve the velocity of rotation of rolling member, avoid occurring
Corrosion etc..
According to the invention of technical solution 5, locating groove is provided on flywheel head cover and/or bearing seal end cap, as a result,
The installation site of the bicycle freewheel can be accurately determined by the locating groove, so as to carry out Fast Installation to flywheel.
According to the invention of technical solution 6, outer layer axle sleeve is fixedly connected with winged core, can improve outer layer axle sleeve and winged core as a result,
Between rotation uniformity.
According to the invention of technical solution 7, the pilot hole of housing annular surface positioned at the top side of ratchet and the bottom of ratchet
The position of side is respectively arranged with annular surface multiple steel bowls that circumferentially shape is distributed along the pilot hole of housing, in each steel bowl
Inside is separately installed with steel ball, the sliding friction between housing and winged core can be changed into rolling friction by steel ball as a result, from
And the frictional dissipation between housing and winged core is reduced, improve riding speed.
According to the invention of technical solution 8, the pilot hole of housing annular surface positioned at the top side of ratchet and the bottom of ratchet
The position of side is also respectively provided with the steel ball retainer for separating each steel ball, so as to pass through the guiding of steel ball retainer and band
Move each steel ball respectively with rolled in the one-to-one steel bowl of each steel ball, steel ball is avoided to come off from steel bowl, meanwhile, prevent
It collides with each other and rubs between steel ball during work.
According to the invention of technical solution 9, flywheel head cover at the top of internal layer axle sleeve with being spirally connected, bearing seal end cap and internal layer axis
The bottom of set is spirally connected, as a result, ensure flywheel head cover and bearing seal end cap respectively with the top of internal layer axle sleeve and internal layer axle sleeve
Bottom it is close-connected simultaneously, be conducive to carry out fast assembling-disassembling to flywheel head cover and bearing seal end cap.
According to the invention of technical solution 10, along the direction extended from the top of flywheel body to the bottom of flywheel body, outside
Tooth have at least two layers and/or, along from the top of flywheel body to the bottom of flywheel body extend direction, ratchet have extremely
It is two layers few.
Can connection and transmission between housing and winged core be ensured by the structure of multilayer ratchet and very heavy, very heavy spring as a result,
Stability.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the internal structure schematic diagram for the first embodiment for representing bicycle freewheel provided by the invention.
Fig. 2 is the external structure schematic diagram for the first embodiment for representing bicycle freewheel provided by the invention.
Fig. 3 is the mounting structure schematic diagram for the first embodiment for representing bicycle freewheel provided by the invention.
Fig. 4 is the mounting structure one for the second embodiment for representing bicycle freewheel provided by the invention.
Fig. 5 is the mounting structure two for the second embodiment for representing bicycle freewheel provided by the invention.
Reference numeral：1- housings；2- flies core；3- is very heavy；The very heavy springs of 4-；51- internal layer axle sleeves；52- outer layer axle sleeves；In 53-
Between axle sleeve；54- rolling members；6- oil filler points；7- locating grooves；8- brake block installation points.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The overall structure of the bicycle freewheel provided according to the present invention can be divided into following several specific embodiments.
First embodiment
Fig. 1 is the internal structure schematic diagram for the first embodiment for representing bicycle freewheel provided by the invention.Fig. 2 is to represent
The external structure schematic diagram of the first embodiment of bicycle freewheel provided by the invention.
As depicted in figs. 1 and 2, which includes flywheel body.
Wherein, flywheel body includes housing 1, flies core 2, is very heavy 3, very heavy spring 4 and multilayer rolling bearing.
It is specific as follows：
Housing 1 and winged core 2 are respectively formed as the annular with respective pilot hole, and fly the assembling that core 2 is embedded in housing 1
The inside in hole；The external tooth for being useful for being connected with chain is uniformly distributed on the outer ring surface of housing 1, on the inner ring surface of housing 1
It is even that ratchet is distributed with；Very heavy 3 be the pawl being hinged on the outer ring surface of winged core 2, one end of very heavy spring 4 and the outer ring surface of winged core 2
Connection, the other end of very heavy spring 4 is abutted with very heavy 3, and under the action of very heavy spring 4, very heavy 3 can be with ratchet engagement；Multilayer is rolled
Dynamic bearing includes multilayer bearing bush, and multilayer bearing bush includes internal layer axle sleeve 51, outer layer axle sleeve 52 and is arranged on outer layer axle sleeve 52 and internal layer
Axle sleeve 53 among four layers between axle sleeve 51, rolling member 54 is separately installed between every two layers adjacent of axle sleeve, wherein, outer layer
Axle sleeve 52 so as to follow the mode that winged core 2 rotates be embedded in winged core 2 pilot hole inside；Edge flies the central axial direction of core 2,
To fly top of the one end as flywheel body of core 2, to fly bottom of the other end as flywheel body of core 2, on the top of flywheel body
Covered with flywheel head cover, being provided in the bottom of flywheel body can at the position between housing 1 and internal layer axle sleeve 51 in portion
Cover the bearing seal end cap of multilayer rolling bearing.
Further, the rolling for separating each rolling member 54 is also separately installed between every two layers adjacent of axle sleeve
Part retainer (not shown).
Further, between every two layers adjacent of axle sleeve positioned at the position of the top side of rolling member 54 and positioned at rolling
The position of the bottom side of part 54 is also separately installed with sealing ring (not shown).
In addition, it is separately provided for injecting the note of lubricating oil on flywheel head cover and bearing seal end cap to rolling member 54
Oilhole 6.
In addition, it is respectively arranged with locating groove 7 on flywheel head cover and bearing seal end cap.
In addition, outer layer axle sleeve 52 is fixedly connected with winged core 2.
In addition, the pilot hole of housing 1 annular surface positioned at the top side of ratchet and the position of the bottom side of ratchet, set respectively
Annular surface multiple steel bowls (not shown) that circumferentially shape is distributed along the pilot hole of housing 1 are equipped with, in the inside points of each steel bowl
Steel ball is not installed.
Further, housing 1 pilot hole annular surface positioned at the position of the top side of ratchet and the bottom side of ratchet also
It is separately provided for the steel ball retainer (not shown) for separating each steel ball.
In addition, flywheel head cover and the top of internal layer axle sleeve 51 are spirally connected, the bottom spiral shell of bearing seal end cap and internal layer axle sleeve 51
It connects.
Second embodiment
On the basis of first embodiment, along the direction extended from the top of flywheel body to the bottom of flywheel body, if
It puts external tooth and ratchet is respectively provided at least two layers.
For example, along the direction extended from the top of flywheel body to the bottom of flywheel body, external tooth and ratchet difference are set
With two layers, also, correspondingly, the position of very heavy and very heavy spring is configured.
It should be strongly noted that in above-mentioned specific embodiment, the very heavy quantity on every layer can be such as figure institute
Show 6 or for 2,3,7,8 or it is any other be more than 1, and no more than the integer of ratchet quantity.
Also, in above-mentioned specific embodiment, the form of rolling member is not limited, can be ball or needle roller or
The diversified forms such as rolling machine part.
The structure of two kinds of specific embodiments of bicycle freewheel provided by the invention is illustrated above, below to it
Operation principle and mounting structure illustrate.
Its operation principle is：When riding, foot-operated when stepping on forward, chain-driving housing rotates forward, at this moment, the spine of housing
Tooth is engaged with very heavy, and the rotatory force of housing passes to winged core by very heavy, and the outer layer axle sleeve that winged core ribbon moves multilayer rolling bearing turns
It is dynamic, and pass through rolling member and pass to intermediate axle sleeve and internal layer axle sleeve successively, finally, by internal layer axle sleeve rear axle is driven to rotate；When stopping
When only trampling, chain and housing do not rotate, and trailing wheel still drives rear axle to rotate forward under effect of inertia, drive multilayer rolling
The internal layer axle sleeve of dynamic bearing rotates, and passes through rolling member and pass to intermediate axle sleeve and outer layer axle sleeve successively, drive as a result, fly core and
Very heavy to rotate forward, when very heavy top slides into the tooth top of ratchet, very heavy spring is compressed at most, continues to slide, it is very heavy just by
Very heavy spring bounces back into the root portion of ratchet, sends " rattling away " sound, treats that sound disappears, can continue to ride.
First embodiment mounting structure
Fig. 3 is the mounting structure schematic diagram for the first embodiment for representing bicycle freewheel provided by the invention.
As shown in figure 3, the bicycle freewheel is installed on a tire, the tire for representing the bicycle freewheel with A1 is installed
Point, the multilayer rolling bearing of the bicycle freewheel are installed in the middle part of tire, also, on the outer layer axle sleeve 52 of multilayer rolling bearing
It is provided with brake block installation point 8.
Second embodiment mounting structure one
Fig. 4 is the mounting structure one for the second embodiment for representing bicycle freewheel provided by the invention.
As shown in figure 4, the bicycle freewheel is installed on a tire, the tire for representing the bicycle freewheel with A2 is installed
Point, the multilayer rolling bearing of the bicycle freewheel are installed in the middle part of tire, and two layers of external tooth is made to be respectively arranged at the both sides of tire, and
And it is provided with brake block installation point 8 on the outer layer axle sleeve 52 of multilayer rolling bearing.
Second embodiment mounting structure two
Fig. 5 is the mounting structure two for the second embodiment for representing bicycle freewheel provided by the invention.
As shown in figure 4, the bicycle freewheel is installed on two tires being arranged in parallel, this is represented voluntarily with A3 and A4 respectively
Two tire installation points of vehicle flywheel, the multilayer rolling bearing of the bicycle freewheel are installed on the middle part of two tires, make two layers
External tooth is arranged at the middle part of two tires, also, is provided with brake block installation point on the outer layer axle sleeve 52 of multilayer rolling bearing
8。
In the present invention, the sliding friction between rear axle and winged core can be become rolling by the application of the structure of multilayer rolling bearing
Dynamic friction, so as to when trampling foot-operated, improve the transmission efficiency of flywheel, and then improve rear wheel rotation speed；It is meanwhile common with installing
Bicycle freewheel compare, the whole sensitivity of bicycle freewheel can be improved, reduction rides and should be flywheel offer in initial procedure
Starting force；In addition, kinetic energy rejection when rubbing between rear axle and winged core can be reduced, the accumulation of energy function of flywheel entirety is improved, is prolonged
Length is had a rest the power time indirectly, is ridden more effortless.
In addition, in above-mentioned specific embodiment, also it is separately installed with to divide between every two layers adjacent of axle sleeve
Every the rolling member retainer of each rolling member, have the following advantages that：1. it guides and rolling member is driven to be rolled on correct raceway
It is dynamic；2. rolling member is equally spaced, it collides with each other and rubs between rolling member when being distributed on the circumference of raceway to prevent work；
3. by rolling member together with sleeve combination, to prevent rolling member from coming off.
In addition, in above-mentioned specific embodiment, between every two layers adjacent of axle sleeve positioned at the top side of rolling member
Position and be also separately installed with sealing ring positioned at the position of the bottom side of rolling member, external sand can be prevented by sealing ring as a result,
Dirt causes to wear to rolling member.
In addition, in above-mentioned specific embodiment, it is separately provided on flywheel head cover and bearing seal end cap
To the oil filler point of rolling member injection lubricating oil, the lubrication between rolling member can be fully kept as a result, improve the rotation speed of rolling member
Degree avoids that corrosion etc. occurs.
In addition, in above-mentioned specific embodiment, covered in flywheel head cover and bearing seal and be respectively arranged with positioning card
Slot can accurately determine the installation site of flywheel, so as to carry out Fast Installation to flywheel by the locating groove as a result,.
In addition, in above-mentioned specific embodiment, outer layer axle sleeve is fixedly connected with winged core, can improve outer layer axis as a result,
Rotation uniformity between set and winged core.
In addition, in above-mentioned specific embodiment, the pilot hole of housing annular surface positioned at the top side of ratchet and spine
The position of the bottom side of tooth is respectively arranged with annular surface multiple steel bowls that circumferentially shape is distributed along the pilot hole of housing, each
The inside of steel bowl is separately installed with steel ball, the sliding friction between housing and winged core can be changed into rolling by steel ball as a result,
Friction, so as to reduce the frictional dissipation between housing and winged core, improve riding speed.
In addition, in above-mentioned specific embodiment, the pilot hole of housing annular surface positioned at the top side of ratchet and spine
The position of the bottom side of tooth is also respectively provided with the steel ball retainer for separating each steel ball, so as to be drawn by steel ball retainer
It leads and each steel ball is driven with being rolled in the one-to-one steel bowl of each steel ball, steel ball to be avoided to come off from steel bowl, together respectively
When, it prevents from colliding with each other and rubbing between steel ball during work.
In addition, in above-mentioned specific embodiment, flywheel head cover at the top of internal layer axle sleeve with being spirally connected, bearing seal end cap
Be spirally connected with the bottom of internal layer axle sleeve, as a result, ensure flywheel head cover and bearing seal end cap respectively with the top of internal layer axle sleeve and
The bottom of internal layer axle sleeve is close-connected simultaneously, is conducive to carry out fast assembling-disassembling to flywheel head cover and bearing seal end cap.
In addition, in above-mentioned specific embodiment, along what is extended from the top of flywheel body to the bottom of flywheel body
Direction sets external tooth and ratchet to be respectively provided at least two layers.
Can connection and transmission between housing and winged core be ensured by the structure of multilayer ratchet and very heavy, very heavy spring as a result,
Stability.
In addition, in above-mentioned specific embodiment, the concrete structure of the present invention is illustrated, but is not limited to
This.
For example, in above-mentioned specific embodiment, setting the intermediate bearing of multilayer rolling bearing has four layers, but not
It is limited to this, which can also have one or two layers or three layers or five layers or at least one layer of more layers, can be achieved
Said effect, and increasing with the number of plies, ride is more laborsaving, and riding speed is also faster.
In addition, in above-mentioned specific embodiment, it is separately provided on flywheel head cover and bearing seal end cap
To the oil filler point of rolling member injection lubricating oil.
But it is without being limited thereto, above-mentioned oil filler point can not also be set, but by the multilayer rolling bearing assembly according to certainly
The structure of lubrication bearing is designed, and is opened up hole respectively on the working face of each layer axle sleeve, and is added admittedly in each hole
Body lubricant, to realize lubricating function.
Alternatively, be formed as only opening up the structure of above-mentioned oil filler point on bearing seal end cap.
In addition, in above-mentioned specific embodiment, positioning is respectively arranged on flywheel head cover and bearing seal end cap
Card slot.
But it is without being limited thereto, above-mentioned locating groove can not also be set, but other marks is used to complete assembly work.
And in the case where setting the locating groove or, above-mentioned locating groove is only set on flywheel head cover,
Either, above-mentioned locating groove only on bearing seal end cap is set, Fast Installation is carried out to flywheel as long as can realize
Function.
In addition, in above-mentioned specific embodiment, along what is extended from the top of flywheel body to the bottom of flywheel body
Direction sets external tooth and ratchet to be respectively provided at least two layers.
But it is without being limited thereto or, along from the top of flywheel body to the bottom of flywheel body extend direction, only
External tooth is only set at least two layers, either, the direction that edge extends from the top of flywheel body to the bottom of flywheel body, only
Ratchet is only set to have at least two layers, either, external tooth and ratchet is set to be respectively provided with one layer, above-mentioned acceleration work(can be achieved
Energy.
In addition, in above-mentioned specific embodiment, also it is separately installed with to divide between every two layers adjacent of axle sleeve
Every the rolling member retainer of each rolling member.
But it is without being limited thereto, above-mentioned rolling member retainer can not also be set, be equally reached and rolled using multilayer
Bearing assembly realizes acceleration, labour-saving function, still, according to the structure in specific embodiment, above-mentioned rolling member is set to protect
Frame is held, is had the following advantages that：1. it guides and rolling member is driven to be rolled on correct raceway；2. by rolling member it is equidistant every
It opens, collides with each other and rub between rolling member when being distributed on the circumference of raceway to prevent work；3. by rolling member and sleeve combination
Together, to prevent rolling member from coming off.
In addition, in above-mentioned specific embodiment, between every two layers adjacent of axle sleeve positioned at the top side of rolling member
Position and be also separately installed with sealing ring positioned at the position of the bottom side of rolling member,
But it is without being limited thereto, above-mentioned sealing ring can not also be set, be equally reached and utilize multilayer rolling bearing group
Part realizes acceleration, labour-saving function, still, according to the structure in specific embodiment, sets above-mentioned sealing ring, as a result, may be used
Prevent external sand and dust from causing to wear to rolling member by sealing ring.
In addition, in above-mentioned specific embodiment, the pilot hole of housing annular surface positioned at the top side of ratchet and spine
The position of the bottom side of tooth is respectively arranged with annular surface multiple steel bowls that circumferentially shape is distributed along the pilot hole of housing, each
The inside of steel bowl is separately installed with steel ball, but without being limited thereto, can not also set above-mentioned steel bowl and steel ball, and only by
Multilayer rolling bearing assembly realizes acceleration, labour-saving function, still, according to the structure in specific embodiment, sets above-mentioned
Steel bowl and steel ball can be turned the sliding friction between housing and winged core by steel ball on the basis of multilayer rolling bearing assembly
Become rolling friction, so as to reduce the frictional dissipation between housing and winged core, further improve riding speed.
In addition, in above-mentioned specific embodiment, the pilot hole of housing annular surface positioned at the top side of ratchet and spine
The position of the bottom side of tooth is also respectively provided with the steel ball retainer for separating each steel ball.
But it is without being limited thereto, above-mentioned steel ball retainer can not also be set, be equally reached and utilize the multilayer axis of rolling
Bearing assembly realizes acceleration, labour-saving function, still, according to the structure in specific embodiment, sets above-mentioned steel ball retainer,
So as to, it can be guided by steel ball retainer and drive each steel ball respectively with being rolled in the one-to-one steel bowl of each steel ball,
Steel ball is avoided to come off from steel bowl, meanwhile, it prevents from colliding with each other and rubbing between steel ball during work.
In addition, in above-mentioned specific embodiment, flywheel head cover at the top of internal layer axle sleeve with being spirally connected, bearing seal end cap
Be spirally connected with the bottom of internal layer axle sleeve, but it is without being limited thereto or, the top of flywheel head cover and internal layer axle sleeve is clamped, bearing
The bottom of end cover and internal layer axle sleeve is clamped；Alternatively, the either side in two side of flywheel head cover and bearing seal end cap is set
It is fixedly connected with internal layer axle sleeve, the opposing party in two side of flywheel head cover and bearing seal end cap is set to be spirally connected or block with internal layer axle sleeve
It connects.But according to the structure in specific embodiment, flywheel head cover is set with being spirally connected at the top of internal layer axle sleeve, bearing seal
The bottom of end cap and internal layer axle sleeve is spirally connected, and is ensureing flywheel head cover and bearing seal the end cap top with internal layer axle sleeve respectively as a result,
Portion and the bottom of internal layer axle sleeve are close-connected simultaneously, are conducive to carry out fast assembling-disassembling to flywheel head cover and bearing seal end cap.
In addition, the bicycle freewheel of the present invention, can be composed of the various structures of the above embodiment, can equally send out
Wave above-mentioned effect.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of bicycle freewheel, which is characterized in that including flywheel body,
The flywheel body includes housing, flies core, is very heavy, very heavy spring and multilayer rolling bearing,
The housing and the winged core are respectively formed as the annular with respective pilot hole, and the winged in-core is embedded in described outer
The inside of the pilot hole of set,
The external tooth for being useful for being connected with chain is uniformly distributed on the outer ring surface of the housing, on the inner ring surface of the housing
It is even that ratchet is distributed with,
It is described very heavy to be hinged on the pawl on the outer ring surface of the winged core,
One end of the very heavy spring is connected with the outer ring surface of the winged core, the other end of the very heavy spring with it is described it is very heavy abut,
Under the action of the very heavy spring, it is described it is very heavy can with the ratchet engagement,
The multilayer rolling bearing includes multilayer bearing bush, and axle sleeve described in multilayer includes internal layer axle sleeve, outer layer axle sleeve and is arranged on institute
Axle sleeve among at least one layer between outer layer axle sleeve and the internal layer axle sleeve is stated, between every two layers adjacent of axle sleeve respectively
Rolling member is installed, wherein, the outer layer axle sleeve is so as to follow the mode of the winged core rotation to be embedded in the assembling of the winged core
The inside in hole,
Along the central axial direction of the winged core, using one end of the winged core as the top of the flywheel body, with the winged core
The other end be the flywheel body bottom,
At the position between the housing and the internal layer axle sleeve at the top of the flywheel body covered with flywheel head cover,
The bearing seal end cap of the multilayer rolling bearing can be covered by being provided in the bottom of the flywheel body.
2. according to the bicycle freewheel described in claim 1, which is characterized in that between every two layers adjacent of axle sleeve also
It is separately installed with the rolling member retainer for separating each rolling member.
3. according to the bicycle freewheel described in claim 2, which is characterized in that between every two layers adjacent of axle sleeve
Sealing ring is also separately installed with positioned at the position of the top side of the rolling member and positioned at the position of the bottom side of the rolling member.
4. according to the bicycle freewheel described in claim 1, which is characterized in that in the flywheel head cover and/or the bearing
It is provided with to inject the oil filler point of lubricating oil to the rolling member on end cover.
5. according to the bicycle freewheel described in claim 1, which is characterized in that in the flywheel head cover and/or the bearing
Locating groove is provided on end cover.
6. according to the bicycle freewheel described in claim 1, which is characterized in that the outer layer axle sleeve is fixed with the winged core to be connected
It connects.
7. according to the bicycle freewheel described in claim 1, which is characterized in that in the annular surface of the pilot hole of the housing
Positioned at the top side of the ratchet and the position of the bottom side of the ratchet, the annular surface of the pilot hole along the housing is respectively arranged with
Circumferentially multiple steel bowls of shape distribution, steel ball is separately installed in the inside of each steel bowl.
8. according to the bicycle freewheel described in claim 7, which is characterized in that in the annular surface of the pilot hole of the housing
The steel for separating each steel ball is also respectively provided with positioned at the position of the top side of the ratchet and the bottom side of the ratchet
Pearl retainer.
9. according to the bicycle freewheel described in claim 1, which is characterized in that the flywheel head cover and the internal layer axle sleeve
Top is spirally connected, and the bottom of the bearing seal end cap and the internal layer axle sleeve is spirally connected.
10. according to the bicycle freewheel described in claim 1, which is characterized in that
Along the direction extended from the top of the flywheel body to the bottom of the flywheel body, the external tooth has at least two
Layer and/or,
Along the direction extended from the top of the flywheel body to the bottom of the flywheel body, the ratchet has at least two
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120075.1A CN108119606A (en) | 2018-02-06 | 2018-02-06 | Bicycle freewheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120075.1A CN108119606A (en) | 2018-02-06 | 2018-02-06 | Bicycle freewheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119606A true CN108119606A (en) | 2018-06-05 |
Family
ID=62234351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810120075.1A Pending CN108119606A (en) | 2018-02-06 | 2018-02-06 | Bicycle freewheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791652A (en) * | 2018-06-14 | 2018-11-13 | 秦小桀 | A kind of bicycle of unidirectional installation wheel |
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| CN201615154U (en) * | 2010-03-31 | 2010-10-27 | 马祝波 | Flywheel of bicycle |
| CN103216575A (en) * | 2013-03-27 | 2013-07-24 | 黄亚军 | Novel high-speed flywheel of machine tool |
| CN204592079U (en) * | 2015-03-30 | 2015-08-26 | 严振华 | Electric bicycle mechanical speed change formula motor flywheel |
| CN105202109A (en) * | 2015-09-27 | 2015-12-30 | 王子鑫 | Novel automobile engine |
| CN207814338U (en) * | 2018-02-06 | 2018-09-04 | 何卫林 | Bicycle freewheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202575U (en) * | 1985-06-22 | 1986-04-23 | 常殿林 | Flywheel with two pawl and bicycle with the flywheel for changing speed |
| US20030224911A1 (en) * | 1997-02-18 | 2003-12-04 | Patrick Warner | Free wheel clutch mechanism for bicycle drive train |
| CN201615154U (en) * | 2010-03-31 | 2010-10-27 | 马祝波 | Flywheel of bicycle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791652A (en) * | 2018-06-14 | 2018-11-13 | 秦小桀 | A kind of bicycle of unidirectional installation wheel |
| CN108791652B (en) * | 2018-06-14 | 2024-03-05 | 秦小桀 | Bicycle with unidirectional wheel |
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