CN103967967A - Horizontal-type eccentric stop block overrun clutch - Google Patents

Horizontal-type eccentric stop block overrun clutch Download PDF

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Publication number
CN103967967A
CN103967967A CN201310216209.7A CN201310216209A CN103967967A CN 103967967 A CN103967967 A CN 103967967A CN 201310216209 A CN201310216209 A CN 201310216209A CN 103967967 A CN103967967 A CN 103967967A
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CN
China
Prior art keywords
shifting block
horizontal eccentric
chock
revolving part
eccentric chock
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Granted
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CN201310216209.7A
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Chinese (zh)
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CN103967967B (en
Inventor
林明
周宗武
周凌炜
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Shenzhen Surmounts Transmission Science And Technology Ltd
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Shenzhen Surmounts Transmission Science And Technology Ltd
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Priority to CN201310216209.7A priority Critical patent/CN103967967B/en
Priority claimed from CN201310216209.7A external-priority patent/CN103967967B/en
Publication of CN103967967A publication Critical patent/CN103967967A/en
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Publication of CN103967967B publication Critical patent/CN103967967B/en
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Abstract

A horizontal-type eccentric stop block overrun clutch comprises an outer-layer rotating member (1) and an inner-layer rotating member (9). Horizontal-type eccentric stop blocks are arranged between the inner-layer rotating member (9) and the outer-layer rotating member, radial thickness of each horizontal-type eccentric stop block increases from a first end (22) to a second end (23) along the peripheral direction of the outer-layer rotating member, drive block portions corresponding to the first end (22) and the second end (23) of each horizontal-type eccentric stop block respectively are formed on the inner-layer rotating member (9), a switching drive block (12) used for pushing the corresponding horizontal-type eccentric stop block is mounted on each drive block mounting portion, and one end of each switching drive block contacts with the inner peripheral face of the outer-layer rotating member (1) to enable the corresponding switching drive block to be driven by the outer-layer rotating member (1) through friction. The technical bottleneck of the prior art is broken through, and the horizontal-type eccentric stop block overrun clutch can ideally adapt to working conditions like large torque load, high-speed transmission and high-frequency impact wearing.

Description

Horizontal eccentric chock free wheel device
Technical field
The present invention relates to a kind of clutch, particularly, relate to a kind of horizontal eccentric chock free wheel device, it can be applied to the various fields such as automobile, aircraft.
Background technique
Free wheel device is one of mechanical transmission structure part extensively adopting, and it is mainly to utilize the rotational speed variation of driving and driven parts or the conversion of sense of rotation, and automatically realizes clutch function.Existing free wheel device mainly contains ratchet type overrunning clutch, roller-type overrunning clutch and Wedge type over running clutch.
Ratchet type overrunning clutch mainly comprises ratchet, active ratchet, check pawl and frame etc., and its motion by active ratchet promotes ratchet and carries out step-by-step movement rotation.Because ratchet type overrunning clutch traverse can only have been done level adjusting, ratchet sliding on the back of tooth easily causes noise and impact wear in addition, therefore should not be used for high speed situation.
Shown in Figure 1, roller-type overrunning clutch mainly comprises interior ring 102a, roller 103a, outer ring 101a, spring 104a and spring cover 105a.In its working procedure, general interior ring 102a can be used as active rotation part, and outer ring 101a is as driven revolving part.When ring 102a clockwise rotates with respect to outer ring 101a in Fig. 1, roller 103a is driven outer ring 101a to rotate by wedging, and free wheel device is in jointing state, and interior ring 102a and outer ring 101a rotate jointly; In the time that interior ring 102a rotates counterclockwise with respect to outer ring 101a, roller 103a is retracted into sipes position and in non-wedging state, and free wheel device separates, interior ring 102a independent rotation.For example, in Fig. 1, outer ring 101a is driven and interior ring 102a rotating in same direction along clockwise direction by another drive unit, when the rotating speed of outer ring 101a is during lower than interior ring 102a, now say from relative motion relation, interior ring 102a clockwise rotates with respect to outer ring 101a, and free wheel device engages automatically; On the contrary, if the rotating speed of outer ring 101a is higher than interior ring 102a, now say from relative motion relation, interior ring 102a rotates counterclockwise with respect to outer ring 101a, and clutch separates automatically.
Shown in Figure 2, Wedge type over running clutch mainly comprises interior ring 102b, outer ring 101b, voussoir 103b, retainer 104b and spring 105 etc., the circular arc working surface that wherein two ends of voussoir 103b are decentraction, these two circular arc working surfaces contact with the raceway arc surface on week in raceway arc surface in interior ring 102b periphery and outer ring 101b respectively.In the course of the work, in the time that interior ring 102b rotates with respect to outer ring 101b clockwise direction, frictional force and spring force can trend towards making voussoir 103b in the counterclockwise direction around its central rotation.Because voussoir size b is greater than the radial distance between two raceway arc surfaces, therefore voussoir is wedged between inside and outside ring and is locked inside and outside ring and jointly rotates with transmitting torque (being jointing state).If interior ring 102b counterclockwise rotates with respect to outer ring 101b, the frictional force between voussoir 103b and inside and outside ring can make voussoir in a clockwise direction around its central rotation.Because the size c of voussoir 103b is less than the radial distance between two raceway arc surfaces, thus voussoir can not wedging in the state of getting loose, inside and outside ring can be distinguished and rotates freely and transmitting torque (surmounting state) not.
Although free wheel device is widely used, the free wheel device of prior art exists the technological deficiency that cannot overcome for a long time always.
At present, no matter free wheel device is at civil area or military domain has all obtained application extremely widely.Since Germany in 1878 adopts roller-type overrunning clutch in the changement of " reversing motor ", people have carried out constantly perfect to free wheel device, and up to the present Wedge type over running clutch has become main flow structure.In aviation industry, between the starter motor of Helicopter Main Transmitted chains and accessory drive chain, fixed wing aircraft and motor, all need to use free wheel device.Also be widely used free wheel device in automobile industry and other industry.But free wheel device is unsatisfactory at the practical application effect of numerous applications, usually cause premature wear.
In general, there is more serious defect in the structure of the free wheel device of prior art itself, and this structural imperfection has caused existing free wheel device practical application effect not ideal enough.As mentioned above, ratchet type overrunning clutch traverse can only have been made level and regulate, and applies less.In practice, be mainly with roller type and Wedge type over running clutch at present, from its operating conditions, in its structural design, have serious defect.
Particularly, referring to Fig. 3 and Fig. 4:
The first, the choosing of wedging angle cannot take into account abrasion resistance and moment of torsion transmits performance: Fig. 3 and Fig. 4 all shows as an example of Wedge type over running clutch example, and wherein the wedging angle of the voussoir of Fig. 3 is 4 °, and the wedging angle of the voussoir in Fig. 4 is 8 °.For those of ordinary skill in the art apparently, the less wedging performance in wedging angle of voussoir is relatively better, but thereupon the effective friction layer for taking up wear of voussoir 103b reduce, abrasion resistance variation, this can make the operating life of voussoir reduce.If increase wedging angle, although effectively friction layer is increased, abrasion resistance strengthens, and wedging performance weakens relatively, and this can cause, and the core technology index of free wheel device---moment of torsion load-carrying properties significantly reduce.
Second, there is major defect in the force structure of moment of torsion transmission: the free wheel device of prior art, no matter be roller-type overrunning clutch or Wedge type over running clutch, there is serious limitation in the thinking of its structural design, in the free wheel device of these types, no matter surmount state or jointing state, roller or voussoir all need to keep and the contacting of outer ring and interior ring, can respond relatively rotating relation and changing working position by friction between interior ring and outer ring, the existence of this Frotteurism had both required roller or voussoir can change neatly working position, require again frictional force in the time surmounting state should not significantly impact outer ring and interior ring independent rotation relative to each other, therefore roller and voussoir need to keep relatively little contact size apparently, but under jointing state, outer ring and interior ring need to be carried out transmitting torque to make outer shroud part and interior ring associated movement by the wedging of roller and voussoir, the roller that this size is less or voussoir are obviously difficult to transmit larger moment of torsion at wedging state.That is to say, in the free wheel device of this prior art, roller or voussoir need to be realized adjustment function and the wedging function of self working position, this structural design thinking has determined that roller and voussoir can only adopt relative light structure, the practical situation of the free wheel device of prior art just so, in the time of wedging working state, roller or voussoir are interior, contact wedging face between outer ring is all the time narrow linear surface of contact or is similar to linear surface of contact (can think linear contact generally, referring to position A and B in Fig. 3 and Fig. 4), even if the suffered pressure of this contact condition is in maximum load condition, the frictional force that can produce is also limited, interior, common rotation between outer ring and while needing transmitting large torque, in, between outer ring, usually produce skidding, even cause voussoir or roller grievous injury, cause security incident.This " high load with small power " force status that does not meet Laws of Mechanics is the insoluble defect of roller type and Wedge type over running clutch.
Above 2 points, have limited the moment of torsion bearing capacity of existing free wheel device, also greatly reduce the working life of free wheel device, and the functional reliability of the equipment that adopts free wheel device and usability are significantly reduced.
Because the said structure defect of prior art free wheel device need to design a kind of novel free wheel device, to overcome the shortcoming of prior art.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of horizontal eccentric chock free wheel device, this horizontal eccentric chock free wheel device not only can be realized the dynamic clutch function of free wheel device effectively, and can enlarge markedly moment of torsion transmission bearing capacity.
In order to solve the problems of the technologies described above, as the first mode of execution of the present invention, the invention provides a kind of horizontal eccentric chock free wheel device, comprise outer and internal layer revolving part, wherein, described internal layer revolving part comprises eccentric stop auxiliary section, between the eccentric stop auxiliary section of described outer revolving part and this internal layer revolving part, be provided with horizontal eccentric chock, the outer surface of described horizontal eccentric chock is the arc surface coordinating with the inner peripheral surface of described outer revolving part, internal surface is and the outer surface out-of-alignment cambered surface of this horizontal eccentric chock, to make radial thickness circumferentially the increasing to the second end from the first end of this horizontal eccentric chock along described outer revolving part of this horizontal eccentric chock, and the internal surface of this horizontal eccentric chock matches with the outer surface of described eccentric stop auxiliary section, and on described internal layer revolving part, be formed with and correspond respectively to the first end of described horizontal eccentric chock and the shifting block assembly department of the second end, on each shifting block assembly department, be separately installed with the switching shifting block for horizontal eccentric chock described in ejection, each one end of switching shifting block contacts with the inner peripheral surface of described outer revolving part respectively, being driven by this skin revolving part by friction, thereby in the time that switching shifting block corresponding to the first end of described horizontal eccentric chock promotes this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state between described skin and internal layer revolving part, in the time that switching shifting block corresponding to the second end of described horizontal eccentric chock promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is between described skin and internal layer revolving part and circumferentially contacting with the outer surface formation cambered surface of the inner peripheral surface of this skin revolving part and the eccentric stop auxiliary section of described internal layer revolving part along described outer revolving part.
Preferably, described horizontal eccentric chock comprises the first horizontal eccentric chock and the second horizontal eccentric chock that are arranged symmetrically with respect to the spin axis of described free wheel device, on described internal layer revolving part, be formed with accordingly the described eccentric stop auxiliary section with respect to described spin axis symmetry, and the internal surface of this first and second horizontal eccentric chock and described in each outer surface of eccentric stop auxiliary section be respectively the eccentric circle cambered surface of spin axis described in center axis deviation; And described shifting block assembly department on described internal layer revolving part comprises the first shifting block assembly department and the second shifting block assembly department that are separately installed with described switching shifting block, wherein said the first shifting block installation position is between the first end of described the first horizontal eccentric chock and the second end of described the second horizontal eccentric chock, to make this first shifting block assembly department simultaneously corresponding to the first end of described the first horizontal eccentric chock and the second end of described the second horizontal eccentric chock; Described the second shifting block installation position is between the second end of described the first horizontal eccentric chock and the first end of described the second horizontal eccentric chock, to make this second shifting block assembly department simultaneously corresponding to the first end of described the first horizontal eccentric chock and the second end of described the second horizontal eccentric chock.
Preferably, the first end of described the first horizontal eccentric chock is with on the second end and the first end of described the second horizontal eccentric chock and the ejection bump being respectively equipped with on the second end for contacting with corresponding described switching shifting block; Or on the side, both sides of the switching shifting block on the side, both sides of the switching shifting block on described the first shifting block assembly department and on described the second shifting block assembly department, be respectively equipped with the ejection bump for the first horizontal eccentric chock or the second horizontal eccentric chock described in ejection.
Preferably, described in each, ejection bump is to regulate the adjusting bolt of protruding length by screw-thread fit.
Preferably, between described the first horizontal eccentric chock and described the first shifting block assembly department or between this first horizontal eccentric chock and described the second shifting block assembly department, chock pretension elastic component is installed, and between described the second horizontal eccentric chock and described the first shifting block assembly department or between this second horizontal eccentric chock and described the second shifting block assembly department, chock pretension elastic component is installed, thereby described the first and second horizontal eccentric chocks are not in the time bearing corresponding described switching shifting block ejection, this first and second horizontal eccentric chock respectively the pretension elastic force by each self-corresponding described chock pretension elastic component and described outer revolving part and corresponding described eccentric stop auxiliary section in preliminary wedging state.
Particularly, individual described chock pretension elastic component is chock preloading spring, on the end face of the second end of described the first horizontal eccentric chock and on the end face of the second end of described the second horizontal eccentric chock, be formed with respectively spring trepanning, described in each, in spring trepanning, be inserted with slidably respectively spring cover, described in each, in spring cover, be respectively equipped with the described chock preloading spring in its pre-compressed state, thereby elastic support has corresponding described spring cover respectively between the second end of described the first horizontal eccentric chock and described the second shifting block assembly department and between the second end of described the second horizontal eccentric chock and described the first shifting block assembly department.
Preferably, the switching shifting block on described the first shifting block assembly department and the second shifting block assembly department is pivotably mounted on described the first shifting block assembly department and the second shifting block assembly department by the pivotable jack-post portion at two ends separately respectively.
More preferably, described the first shifting block assembly department and the second shifting block assembly department are respectively that the shifting block protruding from described internal layer revolving part is installed bump, this shifting block is installed on bump and is formed with and switches shifting block mounting groove, on the two ends end wall of this switching shifting block mounting groove, be formed with respectively the pivotable jack-post mating groove radially extending along described outer revolving part, described switching shifting block is arranged in described switching shifting block mounting groove and described pivotable jack-post portion by two ends can pivotable with the cooperation of corresponding described pivotable jack-post mating groove, and between described switching shifting block and the bottom surface of described shifting block mounting groove, yielding support has shifting block pretension elastic component, the described pivotable jack-post portion at described switching shifting block two ends can slide in the described pivotable jack-post mating groove of correspondence, thereby by the elastic force of described shifting block pretension elastic component, the inner peripheral surface of described switching shifting block and described outer revolving part is kept in touch, and be formed with opening on the both sides sidewall of described switching shifting block mounting groove, contact to make described switching shifting block to form ejection with described the first horizontal eccentric chock or the second horizontal eccentric chock by corresponding described opening.
Particularly, described shifting block pretension elastic component is shifting block preloading spring, the bottom surface of described shifting block mounting groove is formed with shifting block preloading spring mounting hole, described shifting block preloading spring is arranged in described shifting block preloading spring mounting hole, thereby keeps in touch by the inner peripheral surface that elastic force obtains described switching shifting block and described outer revolving part.
Preferably, on described internal layer revolving part, along spaced apart the first axial limiting part of spin axis and the second axial limiting part of described free wheel device, described the first horizontal eccentric chock and the second horizontal eccentric chock are between this first axial limiting part and the second axial limiting part.
As the second mode of execution of the present invention, the invention provides a kind of horizontal eccentric chock free wheel device, comprise outer and internal layer revolving part, wherein, described internal layer revolving part comprises eccentric stop auxiliary section, between the eccentric stop auxiliary section of the inner peripheral surface of described outer revolving part and this internal layer revolving part, be provided with horizontal eccentric chock, the outer surface of described horizontal eccentric chock is the arc surface coordinating with the inner peripheral surface of described outer revolving part, internal surface is and the outer surface out-of-alignment cambered surface of this horizontal eccentric chock, to make thickness circumferentially the increasing to the second end from the first end of this horizontal eccentric chock along described outer revolving part of this horizontal eccentric chock, and between the outer surface of the internal surface of this horizontal eccentric chock and eccentric stop auxiliary section, be provided with and all contact with the outer surface of eccentric stop auxiliary section with the internal surface of this horizontal eccentric chock and along multiple rolling bearing parts of being circumferentially arranged in order, and on described internal layer revolving part, be formed with the shifting block assembly department corresponding to the second end of horizontal eccentric chock described in each, on each shifting block assembly department, be separately installed with the switching toggle mechanism for horizontal eccentric chock described in ejection, the shifting block part that switches toggle mechanism described in each contacts with the inner peripheral surface of described outer revolving part respectively, being driven by this skin revolving part by friction, thereby in the time that the shifting block part of described switching toggle mechanism corresponding to the second end of described horizontal eccentric chock is driven the second end that promotes this horizontal eccentric chock, described horizontal eccentric chock wedging is between described skin and internal layer revolving part, to make described horizontal eccentric chock circumferentially contacting and wedging with the inner peripheral surface formation cambered surface of this skin revolving part along described outer revolving part, and described horizontal eccentric chock forms wedging state by the outer surface of the eccentric stop auxiliary section of described rolling bearing part and described internal layer revolving part, and in the time that the shifting block part of described switching toggle mechanism corresponding to the second end of described horizontal eccentric chock is driven the second end away from the described horizontal eccentric chock of correspondence, described horizontal eccentric chock moves to non-wedging state under the friction of the described rolling bearing part between the internal surface of described outer revolving part and/or this horizontal eccentric chock and the outer surface of described eccentric stop auxiliary section drives.
Particularly, described rolling bearing part is roller bearing part.
More specifically, on described internal layer revolving part, bearing member preloading spring is installed, this bearing member preloading spring circumferentially applies required elastic forepressure to described rolling bearing part along described internal layer revolving part, so that described rolling bearing part is in turn pressed against on the bearing member blocked part of described internal layer revolving part.
Preferably, described horizontal eccentric chock comprises the first horizontal eccentric chock and the second horizontal eccentric chock that are arranged symmetrically with respect to the spin axis of described free wheel device, on described internal layer revolving part, be formed with accordingly the described eccentric stop auxiliary section with respect to described spin axis symmetry, and the internal surface of this first and second horizontal eccentric chock and described in each outer surface of eccentric stop auxiliary section be respectively the eccentric circle cambered surface of spin axis described in center axis deviation; And described shifting block assembly department on described internal layer revolving part comprises the first shifting block assembly department and the second shifting block assembly department that are separately installed with described switching toggle mechanism, wherein said the first shifting block installation position is between the first end of described the first horizontal eccentric chock and the second end of described the second horizontal eccentric chock, to make second end of this first shifting block assembly department corresponding to described the second horizontal eccentric chock; Described the second shifting block installation position is between the second end of described the first horizontal eccentric chock and the first end of described the second horizontal eccentric chock, to make second end of this second shifting block assembly department corresponding to described the first horizontal eccentric chock.
Preferably, described in each, shifting block assembly department is respectively that the shifting block protruding from the periphery of described internal layer revolving part is installed bump, this shifting block is installed on bump and is formed with and switches shifting block mounting groove, this switching shifting block mounting groove has respectively the first side wall and the second sidewall along the circumferential relative both sides of described internal layer revolving part, described the second sidewall along described internal layer revolving part circumferentially than the second end of the described horizontal eccentric chock of the more close correspondence of described the first side wall; Described switching shifting block mechanism is arranged in described switching shifting block mounting groove, this switching shifting block mechanism comprises skewback and the switching roller as described shifting block part, between the bottom surface of wherein said skewback and described shifting block mounting groove, yielding support has shifting block pretension elastic component, and this shifting block pretension elastic component yielding support is in a side of close described second sidewall of described skewback bottom surface; Described switching roller is parallel to the axial of described outer revolving part, and this switching roller is arranged between the internal surface of described outer revolving part and the inclined-plane of skewback and with the inner peripheral surface of this skin revolving part and the inclined-plane of described skewback and all contacts; And be formed with opening on described the second sidewall, can extend in described switching shifting block mounting groove by this opening with the second end that makes corresponding described horizontal eccentric chock; The inclined-plane of described skewback is the inclined bottom surface towards described switching shifting block mounting groove from the side near described the second sidewall to the opposite side near described the first side wall, roller prepressing elastic is installed on described the first side wall, this roller prepressing elastic applies the elastic forepressure towards described the second sidewall to described switching roller, so that described switching roller is kept and the contacting of the inner peripheral surface of described outer revolving part and the inclined-plane of described skewback under non-wedging state.
Specifically selectively, described shifting block pretension elastic component is shifting block preloading spring, and the bottom of described switching shifting block mounting groove is formed with shifting block preloading spring mounting hole, and described shifting block preloading spring is arranged in this shifting block preloading spring mounting hole; Described roller prepressing elastic is roller loaded spring, is formed with roller loaded spring mounting hole on described the first side wall, and described roller loaded spring is arranged in this roller loaded spring mounting hole; And the spring rate of described shifting block preloading spring is greater than the spring rate of described roller loaded spring.
Preferably, described in each, the second end of horizontal eccentric chock is formed with or is provided with ejection bump, the described opening forming on described the second sidewall is ejection bump motion opening, the second end of described horizontal eccentric chock extend into by described ejection bump separately in the switching shifting block mounting groove of corresponding shifting block assembly department, promotes described horizontal eccentric chock motion so that described switching roller can be contacted with this ejection bump in the time that described the second sidewall moves being driven.
More specifically, described the first side wall and described the second sidewall are connected with respectively joint between the axial same one end of described outer revolving part, between the bottom surface of the bottom surface of described joint and described switching shifting block mounting groove, there is interval, and the bottom surface of described joint as described skewback the stop surface towards the bottom surface motion away from described switching shifting block mounting groove.
Preferably, the inclined-plane of described skewback is 5 ° to 15 ° with respect to the angle of inclination of the bottom surface of described switching shifting block mounting groove.
Corresponding with above-mentioned the second mode of execution, above-mentioned eccentric stop auxiliary section also can be formed on outer revolving part, as the third mode of execution, the invention provides a kind of horizontal eccentric chock free wheel device, comprise outer and internal layer revolving part, wherein, described outer revolving part comprises eccentric stop auxiliary section, between the eccentric stop auxiliary section of the outer circumferential face of described internal layer revolving part and this skin revolving part, be provided with horizontal eccentric chock, the internal surface of described horizontal eccentric chock is the arc surface coordinating with the outer circumferential face of described internal layer revolving part, outer surface is and the internal surface out-of-alignment cambered surface of this horizontal eccentric chock, to make thickness circumferentially the increasing to the second end from the first end of described horizontal eccentric chock along described internal layer revolving part of this horizontal eccentric chock, and between the internal surface of the outer surface of this horizontal eccentric chock and described eccentric stop auxiliary section, be provided with and all contact with the internal surface of eccentric stop auxiliary section with the outer surface of this horizontal eccentric chock and along multiple rolling bearing parts of being circumferentially arranged in order, and on described outer revolving part, be formed with the shifting block assembly department corresponding to the second end of horizontal eccentric chock described in each, on each shifting block assembly department, be separately installed with the switching toggle mechanism for horizontal eccentric chock described in ejection, the shifting block part that switches toggle mechanism described in each contacts with the outer circumferential face of described internal layer revolving part respectively, being driven by this internal layer revolving part by friction, thereby in the time that the shifting block part of described switching toggle mechanism corresponding to the second end of described horizontal eccentric chock is driven the second end that promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is between described skin and internal layer revolving part, to make described horizontal eccentric chock circumferentially contacting and wedging with the outer circumferential face formation cambered surface of this internal layer revolving part along described internal layer revolving part, and described horizontal eccentric chock forms wedging state by the internal surface of the eccentric stop auxiliary section of described rolling bearing part and described outer revolving part, and in the time that the shifting block part of described switching toggle mechanism corresponding to the second end of described horizontal eccentric chock is driven the second end away from this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state under the friction of the described rolling bearing part between the outer surface of described internal layer revolving part and/or this horizontal eccentric chock and the internal surface of described eccentric stop auxiliary section drives.
Corresponding with above-mentioned the first mode of execution, above-mentioned eccentric stop auxiliary section can be formed on outer revolving part equally, as the 4th kind of mode of execution, the invention provides a kind of horizontal eccentric chock free wheel device, comprise outer and internal layer revolving part, wherein, described outer revolving part comprises eccentric stop auxiliary section, between the eccentric stop auxiliary section of the outer circumferential face of described internal layer revolving part and this skin revolving part, be provided with horizontal eccentric chock, the internal surface of described horizontal eccentric chock is the arc surface coordinating with the outer circumferential face of described internal layer revolving part, outer surface is and the internal surface out-of-alignment cambered surface of this horizontal eccentric chock, to make radial thickness circumferentially the increasing to the second end from the first end of this horizontal eccentric chock along described internal layer revolving part of this horizontal eccentric chock, and the outer surface of this horizontal eccentric chock matches with the internal surface of described eccentric stop auxiliary section, and on described outer revolving part, be formed with and correspond respectively to the first end of described horizontal eccentric chock and the shifting block assembly department of the second end, on each shifting block assembly department, be separately installed with the switching shifting block for horizontal eccentric chock described in ejection, each one end of switching shifting block contacts with the inner peripheral surface of described internal layer revolving part respectively, being driven by this internal layer revolving part by friction, thereby in the time that switching shifting block corresponding to the first end of described horizontal eccentric chock promotes this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state between described skin and internal layer revolving part, in the time that switching shifting block corresponding to the second end of described horizontal eccentric chock promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is between described skin and internal layer revolving part and circumferentially contacting with the internal surface formation cambered surface of the outer circumferential face of this internal layer revolving part and the eccentric stop auxiliary section of described outer revolving part along described internal layer revolving part.
Pass through technique scheme, horizontal eccentric chock free wheel device of the present invention is owing to scientifically having adopted horizontal eccentric chock structure, make chock in the time of wedging working position, all obtain good guarantee with parallel to an axis degree and the laminating degree of inside and outside revolving part, add that rubbing contact position has become planar contact with respect to " line " shape contact of prior art, transmits load performance thereby make free wheel device can greatly promote moment of torsion under jointing state.Switching pulling block mechanism in the present invention simultaneously, has solved dexterously the pretension elastic force of chock and has surmounted the wear problem that state brings, thereby having made to be significantly higher than the working life of free wheel device of the present invention the free wheel device of prior art.In addition, because horizontal eccentric chock overrun clutch structure of the present invention is reasonable, it has not only reduced manufactures the technical difficulty of processing and performance requirement to equipment, and manufacture cost is minimized, and the performance of free wheel device and technical order are increased dramatically.
In general, horizontal eccentric chock free wheel device of the present invention has been broken through the technical bottleneck of prior art, it can adapt to high pulling torque load, high-speed drive, high frequency impact wear operating mode etc. ideally, for example horizontal eccentric chock free wheel device of the present invention can be applied to vehicle using as the special free wheel device of vehicle sliding, has to solve car industry vehicle sliding recent decades free wheel device the technological deficiency that is difficult to bear high pulling torque load.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Brief description of the drawings
Following accompanying drawing is used to provide a further understanding of the present invention, and forms the part of specification, and itself and following embodiment one are used from explanation the present invention, but protection scope of the present invention is not limited to following the drawings and the specific embodiments.In the accompanying drawings:
Fig. 1 is the structural representation of typical roller-type overrunning clutch in prior art.
Fig. 2 is the partial structurtes schematic diagram of typical Wedge type over running clutch in prior art.
Fig. 3 and Fig. 4 are respectively the voussoir Working state analysis schematic diagram of the Wedge type over running clutch of prior art.
Fig. 5 is the plan structure schematic diagram of the horizontal eccentric chock free wheel device of the specific embodiment of the invention, wherein, in order to show the internal structure of this horizontal eccentric chock free wheel device, outer revolving part and bearing (ball) cover has been taked to cut open display mode.
Fig. 6 is the sectional structure schematic diagram dissecing along the A-A line in Fig. 5, wherein in order to show that switching shifting block can change position and make to switch shifting block in the working position different from Fig. 5.
Fig. 7 is the sectional structure schematic diagram dissecing along the B-B line in Fig. 5, wherein in order to show that switching shifting block can change position and make to switch shifting block in the working position different from Fig. 5.
Fig. 8 and Fig. 9 are respectively the working state schematic representation of horizontal eccentric chock free wheel device of the present invention in the time surmounting state and jointing state.
Figure 10 is the structural representation of the another kind of pretension elastic component setting type of the first and second eccentric chocks in the horizontal eccentric chock free wheel device of the present invention, has wherein carried out simplifying demonstration to switching the structure at shifting block place.
Figure 11 is the structural representation of the horizontal eccentric chock free wheel device of the another kind of embodiment of the present invention, wherein shows that for clear the structure of switching roller place has adopted broken section form.
Figure 12 is the schematic side view of the internal layer revolving part of the horizontal eccentric chock free wheel device shown in Figure 11, wherein outer revolving part has been adopted and has cut the form of demonstration open and omitted skewback and switched the parts such as shifting block.
Figure 13 is the structural representation of the horizontal eccentric chock free wheel device of another embodiment of the present invention, is formed with eccentric stop auxiliary section on its ectomesoderm revolving part.
Description of reference numerals of the present invention:
1 outer revolving part; 1a tapped hole;
1b inner peripheral surface; 1c spline part;
The eccentric stop of 1d auxiliary section;
2 clutch shaft bearings; 3 first axial limiting parts;
4 first horizontal eccentric chocks; 5 second axial limiting parts;
6 seal rings; 7 bearing (ball) covers;
8 bolts hole; 9 internal layer revolving parts;
9a spline part; The eccentric stop of 9b auxiliary section;
9c shifting block is installed bump; 10 seal rings;
11 second bearings; 12 switch shifting block;
12a pivotable jack-post portion; 12b pivotable jack-post portion
12c switches roller;
13 second horizontal eccentric chocks; 14 spring covers;
15 adjusting bolts; 16 shifting block preloading springs
17 adjusting bolts; 18 chock preloading springs;
19 circular grooves; 20 outer surfaces;
21 internal surfaces; 22 first ends;
23 second ends; 24 first shifting block assembly departments;
25 second shifting block assembly departments; 26 rolling bearing parts;
27 bearing member preloading springs; 28 skewbacks;
29 roller loaded springs; 30 shifting block preloading spring mounting holes;
31 roller loaded spring mounting holes; 32 ejection bump motion openings;
33 joints; 34 the first side walls;
35 second sidewalls; 36 ejection bumps.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, should be understood that, embodiment described herein is only for description and interpretation the present invention, and protection scope of the present invention is not limited to following embodiment.
The present invention is directed to the structural imperfection of existing free wheel device, a kind of horizontal eccentric chock free wheel device of brand new is provided, it can adapt to high pulling torque, high-revolving application, and the tool working life and the functional reliability that are significantly improved.
First it should be noted that, horizontal eccentric chock free wheel device of the present invention, wherein said " horizontal " is mainly chock along between the outer revolving part 1 of being circumferentially arranged on of outer revolving part and internal layer revolving part 9 and be " paving is sleeping " form, and it does not represent that horizontal eccentric chock free wheel device of the present invention can only be confined to along the level shown in Fig. 5 use; Described " bias " mainly refers to that the inside and outside surface of chock is out-of-alignment cambered surface, its outer surface 20 can be coaxial with the spin axis O of free wheel device, under the situation that internal surface 21 is for example arc surface at it, the central axis 21 of this internal surface departs from spin axis O.In addition, for those skilled in the art knownly, the spin axis O of free wheel device is the spin axis of outer revolving part 1 and the spin axis of internal layer revolving part 9.
Especially it is emphasized that, horizontal eccentric chock free wheel device of the present invention is not limited to the detail that Fig. 5 to Figure 10 shows, for example in Fig. 6, horizontal eccentric chock comprises the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13 with respect to spin axis O symmetry, but apparently, the present invention is not limited thereto, for example in Fig. 6, the second eccentric chock 13 can form as one with internal layer revolving part 9, that is to say, cancel the second eccentric chock 13, in this case, the part outer circumferential face of internal layer revolving part 9 coordinates with the inner peripheral surface circular arc of outer revolving part 1, now only can realize equally object of the present invention by the first horizontal eccentric retainer 1.That is to say; within the scope of technical conceive of the present invention; no matter those skilled in the art carry out any simple constructional variant to the present invention, as long as it possesses the technical characteristics limiting in the following basic embodiment of the present invention, it all belongs to protection scope of the present invention.
First basic embodiment of the present invention is described, suitably referring to shown in Fig. 5 to Fig. 7, the horizontal eccentric chock free wheel device of basic embodiment of the present invention comprises outer and internal layer revolving part 1, 9, wherein, internal layer revolving part 9 comprises eccentric stop auxiliary section 9b, between outer revolving part 1 and the eccentric stop auxiliary section 9b of internal layer revolving part 9, be provided with horizontal eccentric chock, the relative outer surface 20 of inner peripheral surface with outer revolving part 1 of described horizontal eccentric chock is arc surface, for example can for the coaxial arc surface being fitted to each other of inner peripheral surface of this skin revolving part 1, for the outer surface 20 out-of-alignment cambered surfaces with this horizontal eccentric chock, (internal surface 20 can be arc surface but be not limited to arc surface the internal surface 21 of this horizontal eccentric chock, also can be the continuous level and smooth cambered surface of curvature), to make the radial thickness D-shaped of described horizontal eccentric chock become circumferentially increasing from first end 22 to second ends 23 of this horizontal eccentric chock along outer revolving part 1, and the outer surface of eccentric stop auxiliary section 9b matches with the internal surface 21 of horizontal eccentric chock.That is to say, the radial thickness d(of horizontal eccentric brake slipper is along outer revolving part 1 radially) due to outer surface 20 and internal surface 21 disalignments, therefore thickness is gradual change, in this case, accordingly, the outer surface of the eccentric stop auxiliary section 9b of internal layer revolving part 9 need to be formed as and internal surface 21 adaptations of horizontal eccentric chock.
On internal layer revolving part 9, be formed with and correspond respectively to the first end 22 of horizontal eccentric chock and the shifting block assembly department of the second end 23, described in each, on shifting block assembly department, be separately installed with the switching shifting block 12 for horizontal eccentric chock described in ejection, the one end of switching shifting block 12 described in each contacts with the inner peripheral surface of outer revolving part 1 respectively, thereby can drive and swing by this skin revolving part 1 by friction, wherein in the time that the switching shifting block 12 of first end 22 correspondences of horizontal eccentric chock promotes this horizontal eccentric chock, the outer surface 20 of described horizontal eccentric chock disengages or substantially disengages with the inner peripheral surface of described outer revolving part 1, in non-wedging state, in the time of the eccentric chock of switching shifting block 12 pushed horizontals of the second end 23 correspondences of horizontal eccentric chock, horizontal eccentric chock wedging is between outer revolving part 1 and internal layer revolving part 9, thereby along circumferentially contacting with the outer surface formation cambered surface of the inner peripheral surface of this skin revolving part 1 and the eccentric stop auxiliary section 9b of internal layer revolving part of outer revolving part 1.
Description by above-mentioned basic embodiment can be found out, horizontal eccentric chock free wheel device of the present invention responds outer revolving part 1 and internal layer revolving part 9 rotation status relative to each other by switching shifting block 12, for example, in Fig. 6, in the time that outer revolving part 1 rotates counterclockwise with respect to internal layer revolving part 9, the switching shifting block 12 of Fig. 6 middle and upper part is subject to the driving of outer revolving part 1 and the first end 22 of the eccentric chock 4 of pushed horizontal, make horizontal eccentric chock 4 minute movement, for example the first end 22 of the eccentric chock 4 of pushed horizontal moves to the wider region of spacing between outer revolving part 1 and internal layer revolving part 9, thereby in non-wedging state, form and surmount state.In the time that outer revolving part 1 clockwise rotates with respect to internal layer revolving part 9, the switching shifting block 12 of Fig. 6 middle and lower part is subject to the driving of outer revolving part 1 and the second end of the eccentric chock 4 of pushed horizontal, make horizontal eccentric chock 4 minute movement, for example the second end 23 of the eccentric chock 4 of pushed horizontal moves to the narrower region of spacing between outer revolving part 1 and internal layer revolving part 9, thereby form wedging state, outer revolving part 1 rotates jointly with internal layer revolving part 9.Horizontal eccentric chock wedging when this wedging state is between outer and internal layer revolving part 1,9 and circumferentially contacting with the outer surface formation cambered surface of the inner peripheral surface of this skin revolving part 1 and the eccentric stop auxiliary section 9b of internal layer revolving part along outer revolving part 1.That is to say, because the present invention responds outer revolving part 1 and internal layer revolving part 9 rotation status relative to each other by switching shifting block 12, what therefore horizontal eccentric chock can be along outer revolving part 1 is circumferentially formed as the length grown, for example in Fig. 6, a horizontal eccentric chock 4 spreads the horizontal inner peripheral surface that occupies outer revolving part 1 substantially along circumferential half, the cambered surface contact that this forms thus in the time of wedging state can greatly improve moment of torsion bearing capacity, makes the torque-transfer capability of free wheel device produce qualitative leap.
In above-mentioned basic embodiment, as long as it should be noted that each switches shifting block 12 and is arranged on the shifting block assembly department on internal layer revolving part 9 and can responds the friction of outer revolving part 1 and swing, can form ejection campaign.Shifting block assembly department can be formed as various structural type, and for example below the shifting block of preferred form is installed bump 24,25, and these all belong to protection scope of the present invention.In addition, outer revolving part 1 and internal layer revolving part 9 can have the common structure of some mechanical fields, but be not limited to the detail structural type shown in Fig. 5, for example be formed as the form of the sleeve member of one end sealing at Fig. 5 ectomesoderm revolving part 1, the closed end of this sleeve member is connected with the splined shaft that forms spline part 1c, internal layer revolving part 9 one end are inserted in outer revolving part 1, obviously can form rotatable support by clutch shaft bearing 2 and the second bearing 11, in the bearing installation step hole 7c of the second bearing 11 on bearing (ball) cover 7 and by bearing (ball) cover 7, compress (by the bolt mounting holes 7a on tapped hole 1a and bearing (ball) cover 7 via bolton), in addition, with the second bearing 11 and bearing (ball) cover 7 is supporting routinely has seal ring 10(to be arranged in the oil seal groove 7b on bearing (ball) cover interior edge face) and seal ring 7d.One end that internal layer revolving part 9 stretches out can form spline part 9a equally.This be it should be noted that; these details conventional structures that show in Fig. 5 are only understood for helping; do not form limiting the scope of the invention; the various known swivel bearing form that those skilled in the art can adopt internal layer revolving part in free wheel device with and structure of being connected with outer buttons rotary driving device of this inside and outside layer revolving part, such as key alligator groove connection, gear connection etc.Major technique design of the present invention is the wedging state and the switching construction that surmounts state between outer revolving part 1 and internal layer revolving part 9.Therefore, in the following description, will repeat no more for these conventional structures.
On the basis of the above-mentioned basic embodiment of the present invention, shown in Fig. 6 and Fig. 7, in order to make free wheel device of the present invention moment of torsion transmission when the wedging state more steady, and make the moment of torsion transmission can be stronger, preferably, above-mentioned horizontal eccentric chock comprises the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13 that are arranged symmetrically with respect to the spin axis O of described free wheel device.That is to say, under preferred constructive form of the present invention, above-mentioned horizontal eccentric chock has symmetrical two, correspondingly, on described internal layer revolving part 9, be formed with accordingly two eccentric stop auxiliary section 9b with respect to described spin axis O symmetry, and the internal surface 21 of these the first and second horizontal eccentric chocks 4,13 and described in each outer surface of eccentric stop auxiliary section 9b be respectively the eccentric circle cambered surface of spin axis O described in center axis deviation.That is to say, in the sectional view of Fig. 6, under this preferred constructive form, the above and below in spin axis O respectively, the center of circle of the circular arc line of the outer surface of two described eccentric stop auxiliary section 9b.
Under above-mentioned preferred constructive form, one switches shifting block 12 can be that the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13 share dexterously, particularly, shown in Figure 6, described shifting block assembly department on described internal layer revolving part 9 comprises the first shifting block assembly department 24 and the second shifting block assembly department 25 that are separately installed with described switching shifting block 12, wherein said the first shifting block assembly department 24 is between the first end 22 of the first horizontal eccentric chock 4 and the second end 23 of the second horizontal eccentric chock 13, to make this first shifting block assembly department 24 simultaneously corresponding to the first end 22 of the first horizontal eccentric chock 4 and the second end 23 of the second horizontal eccentric chock 13, described the second shifting block assembly department 25 is between second end 23 and the first end 23 of the second horizontal eccentric chock 13 of the first horizontal eccentric chock 4, to make this second shifting block assembly department 25 simultaneously corresponding to the first end 22 of the first horizontal eccentric chock 4 and the second end 23 of the second horizontal eccentric chock 13.In this case, for example, in Fig. 6, the switching shifting block 12 on top promotes the first end 22 of the first horizontal eccentric chock 4 while moving counterclockwise, when reversing motion, promote the second end 23 of the second horizontal eccentric chock 13, thereby upper and lower switching shifting block 12 is fully used, and has simplified structure.
Shown in Figure 6, the first end 22 of described the first horizontal eccentric chock 4 is with on the second end 23 and the first end 22 of described the second horizontal eccentric chock 13 and the ejection bump that can be respectively equipped with on the second end 23 for contacting with corresponding described switching shifting block 12, for the ease of regulating the protrusion length of ejection bump, this ejection bump can adopt adjusting bolt 15,17, thus can regulate protrusion length by screw-thread fit.Certainly, ejection bump is not limited to the concrete form in Fig. 6, for example, ejection bump also can be arranged on the side, both sides of the switching shifting block 12 on the side, both sides of the switching shifting block 12 on described the first shifting block assembly department 24 and on described the second shifting block assembly department 25, for the horizontal eccentric chock 13 of the first horizontal eccentric chock 4 or the second described in ejection.Similarly, now ejection bump can be also adjusting bolt.
Shown in Fig. 7 and Figure 10, between the first horizontal eccentric chock 4 and the first shifting block assembly department 24 or between this first horizontal eccentric chock 4 and described the second shifting block assembly department 25, chock pretension elastic component is installed, and between the second horizontal eccentric chock 13 and the first shifting block assembly department 24 or between this second horizontal eccentric chock 13 and the second shifting block assembly department 25, chock pretension elastic component is also installed, its major function is, described the first and second horizontal eccentric chocks 4, 13 in the time not bearing 12 ejection of corresponding switching shifting block, this first and second horizontal eccentric chock 4, 13 respectively the pretension elastic force by each self-corresponding described chock pretension elastic component and described outer revolving part 1 and corresponding described eccentric stop auxiliary section 9b in preliminary wedging state.That is to say, this preliminary wedging state belongs to the intermediateness between non-wedging state and wedging state.
Wherein, chock pretension elastic component can have various structures form, for example, in Fig. 7, each chock pretension elastic component is chock preloading spring 18, on the end face of the second end 23 of the first horizontal eccentric chock 4 and on the end face of the second end 23 of described the second horizontal eccentric chock 13, be formed with respectively spring trepanning, described in each, in spring trepanning, be inserted with slidably respectively spring cover 14, in each spring cover, be respectively equipped with the described chock preloading spring 18 in its pre-compressed state, thereby elastic support has corresponding spring cover 14 respectively between the second end 23 of the first horizontal eccentric chock 4 and the second shifting block assembly department 25 and between the second end 23 of the second horizontal eccentric chock 13 and the first shifting block assembly department 24.For another example, in Figure 10, each chock pretension elastic component is the chock preloading spring 18 that length is grown, the first horizontal eccentric chock 4 and described the second horizontal eccentric chock 13 are along being formed with respectively circular groove 19 on the end face of the spin axis O direction of free wheel device, this circular groove 19 accommodates respectively chock preloading spring 18, wherein the second end 23 of this first horizontal eccentric chock 4 is fixed in chock preloading spring 18 one end on the first horizontal eccentric chock 4 in circular groove 19, the other end is fixed on the first shifting block assembly department 24, and in extended state, the second end 23 of this second horizontal eccentric chock 13 is fixed in chock preloading spring 18 one end on the second horizontal eccentric chock 13 in circular groove 19, and the other end is fixed on the second shifting block assembly department 25, and in extended state.The function that structural type in structural type and Fig. 7 in this Figure 10 plays is similar, respectively the elastic thrust by chock preloading spring 18 and pulling force make the first and second horizontal eccentric chocks 4,13 respectively with described outer revolving part 1 and corresponding described eccentric stop auxiliary section 9b in preliminary wedging state.
Referring to shown in Fig. 5 to Fig. 7, preferably, switching shifting block 12 on described the first shifting block assembly department 24 and the second shifting block assembly department 25 passes through respectively the pivotable jack-post 12a of portion at two ends separately, and 12b is pivotably mounted on described the first shifting block assembly department 24 and the second shifting block assembly department 25.In this case, preferred concrete structure is, described the first shifting block assembly department 24 and the second shifting block assembly department 25 are respectively the shifting block protruding from internal layer revolving part 9 bump 9c are installed, this shifting block is installed on bump 9c and is formed with and switches shifting block mounting groove, on the two ends end wall of this switching shifting block mounting groove, be formed with respectively the pivotable jack-post mating groove radially extending along outer revolving part 1, each switches shifting block 12 and is arranged in corresponding switching shifting block mounting groove and by the pivotable jack-post 12a of portion at two ends, the cooperation of 12b and corresponding described pivotable jack-post mating groove and can pivotable, and switch yielding support between shifting block 12 and the bottom surface of shifting block mounting groove and have shifting block pretension elastic component, switch the described pivotable jack-post 12a of portion at shifting block 12 two ends, 12b can slide in corresponding pivotable jack-post mating groove, thereby make to switch one end of shifting block 12 and the inner peripheral surface of outer revolving part 1 keeps in touch by the elastic force of shifting block pretension elastic component, and be formed with opening on the both sides sidewall of switching shifting block mounting groove, can form ejection with the horizontal eccentric chock 13 of described the first horizontal eccentric chock 4 or the second by corresponding opening and contact to make to switch shifting block 12, for example the adjusting bolt 17 in Fig. 6 can pass in and out corresponding opening and contact with the horizontal eccentric chock 13 of the first horizontal eccentric chock 4 or the second.
Particularly, above-mentioned shifting block pretension elastic component can be shifting block preloading spring 16, the bottom surface of described shifting block mounting groove is formed with shifting block preloading spring mounting hole, shifting block preloading spring 16 is arranged in described shifting block preloading spring mounting hole, keeps in touch with the inner peripheral surface of outer revolving part 1 thereby must switch shifting block 12 by elastic force.
In addition, for to the first and second horizontal eccentric chocks 4,13 carry out axial limiting, make the performance of free wheel device more reliable, can on described internal layer revolving part 9 along the spaced apart first axial limiting part 3 of spin axis of described free wheel device and the horizontal eccentric chock 4 of the second axial limiting part 5, the first and the second horizontal eccentric chock 13 between this first axial limiting part 3 and the second axial limiting part 5.Certainly, the first axial limiting part 3 and the second axial limiting part 5 also can adopt other structural type, and for example axial limiting bump, within these simple structure modification all belong to the art-recognized meanings of the first axial limiting part 3 and the second axial limiting part 5.
In addition, in order to help skilled in the art to understand, Fig. 8 and Fig. 9 have shown horizontal eccentric chock free wheel device working state of the present invention, for example, in Fig. 8, the first and second horizontal eccentric chocks 4, 13 from the position in preliminary wedging state, in the time that outer revolving part 1 rotates counterclockwise with respect to internal layer revolving part 9, shifting block 12 is switched on top and bottom switching shifting block 12 promotes respectively the first and second horizontal eccentric chocks 4, 13 first ends 20 separately, thereby the first and second horizontal eccentric chocks 4, 13 produce small movements, thereby the P1 in Fig. 8 and P2 position enter into respectively non-wedging state, outer revolving part 1 and internal layer revolving part 9 relative to each other can independently rotate.In Fig. 9, in the time that outer revolving part 1 clockwise rotates with respect to internal layer revolving part 9, top switching shifting block 12 and bottom switching shifting block 12 promote respectively the second end 21 and the first horizontal eccentric chock 4 of the second horizontal eccentric chock 13, the second end 21 of 13, thereby the first and second horizontal eccentric chocks 4, 13 produce small movements, the P1 ' in Fig. 9 and P2 ' thus position enters into respectively wedging state, the first and second horizontal eccentric chocks 4, 13 wedgings are between outer revolving part 1 and internal layer revolving part 9, thereby along circumferentially contacting with the outer surface formation cambered surface of the inner peripheral surface of this skin revolving part 1 and the eccentric stop auxiliary section 9b of internal layer revolving part of outer revolving part 1, greatly strengthen torque-transfer capability.
Although accompanying drawing do not show, those skilled in the art obviously can expect, it is upper that above-mentioned eccentric stop auxiliary section also can be formed on interior week of outer revolving part, and this is only a kind of conversion of inside and outside layer.Participate in Fig. 1 to Figure 10, and engage Figure 13, corresponding with the mode of execution of Fig. 1 to Figure 10, the invention provides a kind of horizontal eccentric chock free wheel device, it comprises outer and internal layer revolving part 1, 9, wherein, outer revolving part 1 can comprise eccentric stop auxiliary section 1d, between the eccentric stop auxiliary section 1d of the outer circumferential face of described internal layer revolving part 9 and this skin revolving part, be provided with horizontal eccentric chock, the internal surface 21 of horizontal eccentric chock is the arc surface coordinating with the outer circumferential face of described internal layer revolving part 9, outer surface 20 is and the internal surface 21 out-of-alignment cambered surfaces of this horizontal eccentric chock, to make radial thickness d circumferentially the increasing from first end 22 to second ends 23 of this horizontal eccentric chock along described internal layer revolving part of this horizontal eccentric chock, and the outer surface 20 of this horizontal eccentric chock matches with the internal surface of described eccentric stop auxiliary section 9b, and on described outer revolving part 1, be formed with and correspond respectively to the first end 22 of described horizontal eccentric chock and the shifting block assembly department of the second end 23, on each shifting block assembly department, be separately installed with the switching shifting block 12 for horizontal eccentric chock described in ejection, each one end of switching shifting block contacts with the inner peripheral surface of described internal layer revolving part 9 respectively, being driven by this internal layer revolving part 9 by friction, thereby in the time that the switching shifting block of first end 22 correspondences of described horizontal eccentric chock promotes this horizontal eccentric chock, described horizontal eccentric chock is at described skin and internal layer revolving part 1, between 9, move to non-wedging state, in the time that the switching shifting block of the second end 23 correspondences of described horizontal eccentric chock promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part 1, between 9 and circumferentially contacting with the internal surface formation cambered surface of the outer circumferential face of this internal layer revolving part 9 and the eccentric stop auxiliary section 1d of described outer revolving part along described internal layer revolving part 9.
Correspondingly, the above-mentioned various concrete structures of describing referring to figs. 1 through Figure 10 all can carry out the displacement of internal and external layer simply, and this is repeated no more.
Referring to Figure 11 and Figure 12, as the another kind of preferred mode of execution of the present invention, the invention provides a kind of horizontal eccentric chock free wheel device, comprise outer and internal layer revolving part 1, 9, wherein, described internal layer revolving part 9 comprises eccentric stop auxiliary section 9b, between the eccentric stop auxiliary section 9b of the inner peripheral surface of described outer revolving part 1 and this internal layer revolving part, be provided with horizontal eccentric chock, the outer surface 20 of described horizontal eccentric chock is the arc surface coordinating with the inner peripheral surface of described outer revolving part 1, internal surface 21 is and the outer surface 20 out-of-alignment cambered surfaces of this horizontal eccentric chock, to make the thickness d of this horizontal eccentric chock (with reference to the sign of Fig. 6, substantially radially) circumferentially increasing continuously from first end 22 to second ends 23 of this horizontal eccentric chock along described outer revolving part, and between the outer surface of the internal surface 21 of this horizontal eccentric chock and eccentric stop auxiliary section 9b, be provided with and all contact with the outer surface of eccentric stop auxiliary section 9b with the internal surface 21 of this horizontal eccentric chock and along multiple rolling bearing parts 26 of being circumferentially arranged in order.
On described internal layer revolving part 9, be formed with the shifting block assembly department corresponding to the second end 23 of horizontal eccentric chock described in each, on each shifting block assembly department, be separately installed with the switching toggle mechanism for horizontal eccentric chock described in ejection, the shifting block part that switches toggle mechanism described in each contacts with the inner peripheral surface of described outer revolving part 1 respectively, being driven by this skin revolving part 1 by friction, thereby in the time that the shifting block part of the described switching toggle mechanism of the second end 23 correspondences of described horizontal eccentric chock is driven the second end 23 that promotes this horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part 1, between 9, to make described horizontal eccentric chock circumferentially contacting and wedging with the inner peripheral surface formation cambered surface of this skin revolving part 1 along described outer revolving part 1, and described horizontal eccentric chock forms wedging state by described rolling bearing part 26 and the outer surface of the eccentric stop auxiliary section 9b of described internal layer revolving part, and in the time that the shifting block part of the described switching toggle mechanism of the second end 23 correspondences of described horizontal eccentric chock is driven the second end 23 away from the described horizontal eccentric chock of correspondence, described horizontal eccentric chock moves to non-wedging state under the friction of the described rolling bearing part 26 between the internal surface 21 of described outer revolving part 1 and/or this horizontal eccentric chock and the outer surface of described eccentric stop auxiliary section 9b drives.
Rolling bearing part 26 can be the roll piece of various ways, as long as it is convenient to wedging and can easily moves to remove wedging, for example, rolling bearing part 26 can be roller bearing part.
Shown in Figure 11, bearing member preloading spring 27 is installed on internal layer revolving part 9, this bearing member preloading spring 27 circumferentially applies required elastic forepressure to described rolling bearing part 26 along described internal layer revolving part 9, so that described rolling bearing part 26 is in turn pressed against on the bearing member blocked part 9d of described internal layer revolving part 9.
As the form of implementation shown in Fig. 1 to Figure 10, described horizontal eccentric chock comprises the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13 that are arranged symmetrically with respect to the spin axis O of described free wheel device, on described internal layer revolving part 9, be formed with accordingly the described eccentric stop auxiliary section 9b with respect to described spin axis O symmetry, and the internal surface 21 of these the first and second horizontal eccentric chocks 4,13 and described in each outer surface of eccentric stop auxiliary section 9b be respectively the eccentric circle cambered surface of spin axis O described in center axis deviation; And described shifting block assembly department on described internal layer revolving part 9 comprises the first shifting block assembly department 24 and the second shifting block assembly department 25 that are separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department 24 is between the first end 22 of described the first horizontal eccentric chock 4 and the second end 23 of described the second horizontal eccentric chock 13, to make second end 23 of this first shifting block assembly department 24 corresponding to described the second horizontal eccentric chock 13; Described the second shifting block assembly department 25 is between second end 23 and the first end 22 of described the second horizontal eccentric chock 13 of described the first horizontal eccentric chock 4, to make second end 23 of this second shifting block assembly department 25 corresponding to described the first horizontal eccentric chock 4.
Referring to Figure 11 and Figure 12, preferably, shifting block assembly department 24 described in each, 25 are respectively the shifting block protruding from the periphery of described internal layer revolving part 9 installs bump 9c, this shifting block is installed on bump 9c and is formed with and switches shifting block mounting groove, this switching shifting block mounting groove has respectively the first side wall 34 and the second sidewall 35 along the circumferential relative both sides of described internal layer revolving part 9, and described the second sidewall 35 is circumferential than the second end 23 of the described horizontal eccentric chock of described the first side wall 34 more close correspondences along described internal layer revolving part 9; Described switching shifting block mechanism is arranged in described switching shifting block mounting groove, this switching shifting block mechanism comprises skewback 28 and the switching roller 12c as described shifting block part, between wherein said skewback 28 and the bottom surface of described shifting block mounting groove, yielding support has shifting block pretension elastic component, and this shifting block pretension elastic component yielding support is in a side of close described second sidewall 35 of described skewback 28 bottom surfaces; Described switching roller 12c is parallel to the axial of described outer revolving part 9, and this switching roller 12c is arranged between the internal surface of described outer revolving part 1 and the inclined-plane of skewback 28 and with the inner peripheral surface of this skin revolving part 1 and all contacts with the inclined-plane of described skewback 28; On described the second sidewall 35, be formed with opening, can extend in described switching shifting block mounting groove by this opening with the second end 23 that makes corresponding described horizontal eccentric chock; The inclined-plane of described skewback 28 is the inclined bottom surface towards described switching shifting block mounting groove from the side near described the second sidewall 35 to the opposite side near described the first side wall 34, on described the first side wall 34, roller prepressing elastic is installed, this roller prepressing elastic applies the elastic forepressure towards described the second sidewall 35 to described switching roller 12c, so that described switching roller 12c is kept and the contacting of the inner peripheral surface of described outer revolving part 1 and the inclined-plane of described skewback 28 under non-wedging state.
Particularly, described shifting block pretension elastic component can be shifting block preloading spring 16, and the bottom of described switching shifting block mounting groove is formed with shifting block preloading spring mounting hole 30, and described shifting block preloading spring 16 is arranged in this shifting block preloading spring mounting hole 30; Described roller prepressing elastic can be roller loaded spring 29, is formed with roller loaded spring mounting hole 31 on described the first side wall 34, and described roller loaded spring 29 is arranged in this roller loaded spring mounting hole 31.Because roller loaded spring 29 only forms a kind of preliminary Pre strained state for making to switch roller 12c, therefore the spring rate of described shifting block preloading spring 16 is greater than the spring rate of described roller loaded spring 29.Like this, provide large elastic force by shifting block preloading spring 16, make free wheel device make to switch roller 12c by relatively large elastic force and be subject to larger frictional force, thereby promote corresponding horizontal eccentric chock and enter wedging state, at non-wedging state, roller loaded spring 29 is mainly used in forming a preliminary precompressed to switching roller 12c, keep and contact (modification mode of execution that the switching toggle mechanism referring to Figure 13 described outer revolving part and internal layer revolving part on exchange same like this) of skewback 28 with outer revolving part inner peripheral surface to make switching roller 12c.
As shown in figure 11, described in each, the second end 23 of horizontal eccentric chock is formed with or is provided with ejection bump 36, the described opening forming on described the second sidewall 35 is ejection bump motion opening 32, the second end 23 of described horizontal eccentric chock extend into by described ejection bump 32 separately in the switching shifting block mounting groove of corresponding shifting block assembly department, promotes described horizontal eccentric chock motion so that described switching roller 12c can be contacted with this ejection bump 36 in the time that described the second sidewall 35 moves being driven.Participate in Figure 12, described the first side wall 34 and described the second sidewall 35 are connected with respectively joint 33 between the axial same one end of described outer revolving part 1, between the bottom surface of the bottom surface of described joint 33 and described switching shifting block mounting groove, there is interval, and the bottom surface of described joint 33 as described skewback 28 stop surface towards the bottom surface motion away from described switching shifting block mounting groove.
Preferably, the inclined-plane of skewback 28 is 5 ° to 15 ° with respect to the angle of inclination of the bottom surface of described switching shifting block mounting groove.Confirm through practical application, this angle of inclination is relative ideal.
Corresponding with the mode of execution that Figure 11 shows, eccentric stop auxiliary section 9b can be transformed on outer revolving part 1 equally, correspondingly other structure is also carried out corresponding conversion, particularly, referring to Figure 13, horizontal eccentric chock free wheel device shown in this Figure 13 comprises outer and internal layer revolving part 1, 9, wherein, described outer revolving part 1 comprises eccentric stop auxiliary section 1d, between the eccentric stop auxiliary section 1d of the outer circumferential face of described internal layer revolving part 9 and this skin revolving part, be provided with horizontal eccentric chock, the internal surface 21 of described horizontal eccentric chock is the arc surface coordinating with the outer circumferential face of described internal layer revolving part 9, outer surface 20 is and the internal surface 21 out-of-alignment cambered surfaces of this horizontal eccentric chock, to make thickness d circumferentially the increasing from first end 22 to second ends 23 of described horizontal eccentric chock along described internal layer revolving part of this horizontal eccentric chock, and between the internal surface of the outer surface 20 of this horizontal eccentric chock and described eccentric stop auxiliary section 1d, be provided with and all contact with the internal surface of eccentric stop auxiliary section 1d with the outer surface 20 of this horizontal eccentric chock and along multiple rolling bearing parts 26 of being circumferentially arranged in order, and on described outer revolving part 1, be formed with the shifting block assembly department corresponding to the second end 23 of horizontal eccentric chock described in each, on each shifting block assembly department, be separately installed with the switching toggle mechanism for horizontal eccentric chock described in ejection, the shifting block part that switches toggle mechanism described in each contacts with the outer circumferential face of described internal layer revolving part 9 respectively, being driven by this internal layer revolving part 9 by friction, thereby in the time that the shifting block part of the described switching toggle mechanism of the second end 23 correspondences of described horizontal eccentric chock is driven the second end 23 that promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part 1, between 9, to make described horizontal eccentric chock circumferentially contacting and wedging with the outer circumferential face formation cambered surface of this internal layer revolving part 9 along described internal layer revolving part 9, and described horizontal eccentric chock forms wedging state by described rolling bearing part 26 and the internal surface of the eccentric stop auxiliary section 1d of described outer revolving part, and in the time that the shifting block part of the described switching toggle mechanism of the second end 23 correspondences of described horizontal eccentric chock is driven the second end 23 away from this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state under the friction of the described rolling bearing part 26 between the outer surface 20 of described internal layer revolving part 9 and/or this horizontal eccentric chock and the internal surface of described eccentric stop auxiliary section 1d drives.
Basic identical with the structure shown in Figure 11 and Figure 12, particularly, for example, described rolling bearing part 26 can be roller bearing part.On described outer revolving part 1, above-mentioned bearing member preloading spring 27 can be installed, this bearing member preloading spring 27 circumferentially applies required elastic forepressure to described rolling bearing part 26 along described outer revolving part 1, so that described rolling bearing part 26 is in turn pressed against on the bearing member blocked part 9d of described outer revolving part 1.
In addition, as symmetrically arranged preferred form, described horizontal eccentric chock comprises the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13 that are arranged symmetrically with respect to the spin axis O of described free wheel device, on described outer revolving part 1, be formed with accordingly the described eccentric stop auxiliary section 1d with respect to described spin axis O symmetry, and the outer surface 20 of these the first and second horizontal eccentric chocks 4,13 and described in each internal surface of eccentric stop auxiliary section 1d be respectively the eccentric circle cambered surface of spin axis O described in center axis deviation; And described shifting block assembly department on described outer revolving part 1 comprises the first shifting block assembly department 24 and the second shifting block assembly department 25 that are separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department 24 is between the first end 22 of described the first horizontal eccentric chock 4 and the second end 23 of described the second horizontal eccentric chock 13, to make second end 23 of this first shifting block assembly department 24 corresponding to described the second horizontal eccentric chock 13; Described the second shifting block assembly department 25 is between second end 23 and the first end 22 of described the second horizontal eccentric chock 13 of described the first horizontal eccentric chock 4, to make second end 23 of this second shifting block assembly department 25 corresponding to described the first horizontal eccentric chock 4.
Similarly, shifting block assembly department 24 described in each, 25 shifting blocks that can be respectively from protruding in the interior week of described outer revolving part 1 are installed bump 9c, this shifting block is installed on bump 9c and is formed with and switches shifting block mounting groove, this switching shifting block mounting groove has respectively the first side wall 34 and the second sidewall 35 along the circumferential relative both sides of described outer revolving part 1, and described the second sidewall 35 is circumferential than the second end 23 of the described horizontal eccentric chock of described the first side wall 34 more close correspondences along described outer revolving part 1; Described switching shifting block mechanism is arranged in described switching shifting block mounting groove, this switching shifting block mechanism comprises skewback 28 and the switching roller 12c as described shifting block part, between wherein said skewback 28 and the bottom surface of described shifting block mounting groove, yielding support has shifting block pretension elastic component, and this shifting block pretension elastic component yielding support is in a side of close described second sidewall 35 of described skewback 28 bottom surfaces; Described switching roller 12c is parallel to the axial of described internal layer revolving part 1, and this switching roller 12c is arranged between the outer circumferential face of described internal layer revolving part 1 and the inclined-plane of skewback 28 and with the outer circumferential face of this internal layer revolving part 9 and all contacts with the inclined-plane of described skewback 28; And be formed with opening on described the second sidewall 35, can extend in described switching shifting block mounting groove by this opening with the second end 23 that makes corresponding described horizontal eccentric chock; The inclined-plane of described skewback 28 is the inclined bottom surface towards described switching shifting block mounting groove from the side near described the second sidewall 35 to the opposite side near described the first side wall 34, on described the first side wall 34, roller prepressing elastic is installed, this roller prepressing elastic applies the elastic forepressure towards described the second sidewall 35 to described switching roller 12c, so that described switching roller 12c is kept and the contacting of the outer circumferential face of described internal layer revolving part 9 and the inclined-plane of described skewback 28 under non-wedging state.Particularly, described shifting block pretension elastic component can be shifting block preloading spring 16, and the bottom of described switching shifting block mounting groove is formed with shifting block preloading spring mounting hole 30, and described shifting block preloading spring 16 is arranged in this shifting block preloading spring mounting hole 30; Described roller prepressing elastic is roller loaded spring 29, is formed with roller loaded spring mounting hole 31 on described the first side wall 34, and described roller loaded spring 29 is arranged in this roller loaded spring mounting hole 31; And the spring rate of described shifting block preloading spring 16 is greater than the spring rate of described roller loaded spring 29.
In addition, described in each, the second end 23 of horizontal eccentric chock is formed with or is provided with ejection bump 36, the described opening forming on described the second sidewall 35 is ejection bump motion opening 32, the second end 23 of described horizontal eccentric chock extend into by described ejection bump 32 separately in the switching shifting block mounting groove of corresponding shifting block assembly department, promotes described horizontal eccentric chock motion so that described switching roller 12c can be contacted with this ejection bump 36 in the time that described the second sidewall 35 moves being driven.Suitably with reference to Figure 12, described the first side wall 34 and described the second sidewall 35 are connected with respectively joint 33 between the axial same one end of described internal layer revolving part 9, between the bottom surface of the bottom surface of described joint 33 and described switching shifting block mounting groove, there is interval, and the bottom surface of described joint 33 as described skewback 28 stop surface towards the bottom surface motion away from described switching shifting block mounting groove.
Preferably, in the mode of execution shown in Figure 13, the inclined-plane of described skewback 28 can be 5 ° to 15 ° equally with respect to the range of tilt angles of the bottom surface of described switching shifting block mounting groove.
The horizontal eccentric chock free wheel device working state of Figure 11 to Figure 13 illustrated embodiment, with the above-mentioned working principle of describing with reference to Fig. 8 and Fig. 9 be similarly, this is repeated no more.
Can be found out by upper description, the invention has the advantages that: horizontal eccentric chock free wheel device of the present invention is owing to scientifically having adopted horizontal eccentric chock structure, make chock in the time of wedging working position, all obtain good guarantee with parallel to an axis degree and the laminating degree of inside and outside revolving part, add that rubbing contact position has become planar contact with respect to " line " shape contact of prior art, transmits load performance thereby make free wheel device can greatly promote moment of torsion under jointing state.Switching pulling block mechanism in the present invention simultaneously, has solved dexterously the pretension elastic force of chock and has surmounted the wear problem that state brings, thereby having made to be significantly higher than the working life of free wheel device of the present invention the free wheel device of prior art.
In addition, because horizontal eccentric chock overrun clutch structure of the present invention is reasonable, it has not only reduced manufactures the technical difficulty of processing and performance requirement to equipment, and manufacture cost is minimized, and the performance of free wheel device and technical order are increased dramatically.
In general, horizontal eccentric chock free wheel device of the present invention has been broken through the technical bottleneck of prior art, it can adapt to high pulling torque load, high-speed drive, high frequency impact wear operating mode etc. ideally, for example horizontal eccentric chock free wheel device of the present invention can be applied to vehicle using as the special free wheel device of vehicle sliding, has to solve car industry vehicle sliding recent decades free wheel device the technological deficiency that is difficult to bear high pulling torque load.Can predict for those skilled in the art, horizontal eccentric chock free wheel device of the present invention will produce technological innovation to the application of free wheel device in mechanical industry and breaks through and promote.Horizontal eccentric chock free wheel device of the present invention has passed through trial-production and has produced, and its performance especially lifting of torque-transfer capability is confirmed.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (29)

1. horizontal eccentric chock free wheel device, comprises outer and internal layer revolving part (1,9), wherein,
Described internal layer revolving part (9) comprises eccentric stop auxiliary section (9b), between the eccentric stop auxiliary section (9b) of described outer revolving part (1) and this internal layer revolving part, be provided with horizontal eccentric chock, the outer surface (20) of described horizontal eccentric chock is the arc surface coordinating with the inner peripheral surface of described outer revolving part (1), internal surface (21) is and outer surface (20) the out-of-alignment cambered surface of this horizontal eccentric chock, to make radial thickness (d) circumferentially the increasing to the second end (23) from the first end (22) of this horizontal eccentric chock along described outer revolving part of this horizontal eccentric chock, and the internal surface of this horizontal eccentric chock (21) matches with the outer surface of described eccentric stop auxiliary section (9b), and
On described internal layer revolving part (9), be formed with and correspond respectively to the first end (22) of described horizontal eccentric chock and the shifting block assembly department of the second end (23), on each shifting block assembly department, be separately installed with the switching shifting block (12) for horizontal eccentric chock described in ejection, each one end of switching shifting block contacts with the inner peripheral surface of described outer revolving part (1) respectively, being driven by this skin revolving part (1) by friction, thereby in the time that switching shifting block corresponding to the first end (22) of described horizontal eccentric chock promotes this horizontal eccentric chock, described horizontal eccentric chock is at described skin and internal layer revolving part (1,9) between, move to non-wedging state, in the time that switching shifting block corresponding to second end (23) of described horizontal eccentric chock promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part (1,9) between and circumferentially contacting with the outer surface formation cambered surface of the inner peripheral surface of this skin revolving part (1) and the eccentric stop auxiliary section (9b) of described internal layer revolving part along described outer revolving part (1).
2. horizontal eccentric chock free wheel device according to claim 1, wherein, described horizontal eccentric chock comprises the first horizontal eccentric chock (4) and the second horizontal eccentric chock (13) that the spin axis (O) with respect to described free wheel device is arranged symmetrically with, on described internal layer revolving part (9), be formed with accordingly the described eccentric stop auxiliary section (9b) symmetrical with respect to described spin axis (O), and this first and second horizontal eccentric chock (4, 13) internal surface (21) and described in each outer surface of eccentric stop auxiliary section (9b) be respectively the eccentric circle cambered surface of spin axis (O) described in center axis deviation, and
Described shifting block assembly department on described internal layer revolving part (9) comprises the first shifting block assembly department (24) and the second shifting block assembly department (25) that are separately installed with described switching shifting block (12), wherein said the first shifting block assembly department (24) is positioned between the first end (22) of described the first horizontal eccentric chock (4) and second end (23) of described the second horizontal eccentric chock (13), to make this first shifting block assembly department (24) simultaneously corresponding to the first end (22) of described the first horizontal eccentric chock (4) and second end (23) of described the second horizontal eccentric chock (13), described the second shifting block assembly department (25) is positioned between second end (23) of described the first horizontal eccentric chock (4) and the first end (23) of described the second horizontal eccentric chock (13), to make this second shifting block assembly department (25) simultaneously corresponding to the first end (22) of described the first horizontal eccentric chock (4) and second end (23) of described the second horizontal eccentric chock (13).
3. horizontal eccentric chock free wheel device according to claim 2, wherein, the first end (22) and the ejection bump being respectively equipped with on the second end (23) for contacting with corresponding described switching shifting block (12) of upper and described the second horizontal eccentric chock (13) of the first end (22) of described the first horizontal eccentric chock (4) and the second end (23); Or
On the side, both sides of the switching shifting block (12) on the side, both sides of the switching shifting block (12) on described the first shifting block assembly department (24) and on described the second shifting block assembly department (25), be respectively equipped with the ejection bump for the first horizontal eccentric chock (4) or the second horizontal eccentric chock (13) described in ejection.
4. horizontal eccentric chock free wheel device according to claim 3, wherein, described in each, ejection bump is to regulate the adjusting bolt (17) of protruding length by screw-thread fit.
5. horizontal eccentric chock free wheel device according to claim 2, wherein, between described the first horizontal eccentric chock (4) and described the first shifting block assembly department (24) or between this first horizontal eccentric chock (4) and described the second shifting block assembly department (25), chock pretension elastic component is installed, and between described the second horizontal eccentric chock (13) and described the first shifting block assembly department (24) or between this second horizontal eccentric chock (13) and described the second shifting block assembly department (25), chock pretension elastic component is installed
Thereby described the first and second horizontal eccentric chocks (4,13) in the time not bearing corresponding described switching shifting block (12) ejection, this first and second horizontal eccentric chock (4,13) respectively the pretension elastic force by each self-corresponding described chock pretension elastic component and described outer revolving part (1) and corresponding described eccentric stop auxiliary section (9b) in preliminary wedging state.
6. horizontal eccentric chock free wheel device according to claim 5, wherein, described in each, chock pretension elastic component is chock preloading spring (18), on the end face of second end (23) of described the first horizontal eccentric chock (4) and on the end face of second end (23) of described the second horizontal eccentric chock (13), be formed with respectively spring trepanning, described in each, in spring trepanning, be inserted with slidably respectively spring cover (14), described in each, in spring cover, be respectively equipped with the described chock preloading spring (18) in its pre-compressed state, thereby elastic support has corresponding described spring cover (14) respectively between second end (23) of described the first horizontal eccentric chock (4) and described the second shifting block assembly department (25) and between second end (23) of described the second horizontal eccentric chock (13) and described the first shifting block assembly department (24).
7. according to the horizontal eccentric chock free wheel device described in any one in claim 2 to 5, wherein, switching shifting block (12) on described the first shifting block assembly department (24) and the second shifting block assembly department (25) passes through respectively the pivotable jack-post portion (12a, 12b) at two ends separately and is pivotably mounted on described the first shifting block assembly department (24) and the second shifting block assembly department (25).
8. horizontal eccentric chock free wheel device according to claim 7, wherein, described the first shifting block assembly department (24) and the second shifting block assembly department (25) are respectively the shifting block protruding from described internal layer revolving part (9) bump (9c) are installed, this shifting block is installed on bump (9c) and is formed with and switches shifting block mounting groove, on the two ends end wall of this switching shifting block mounting groove, be formed with respectively the pivotable jack-post mating groove radially extending along described outer revolving part (1), described switching shifting block (12) is arranged in described switching shifting block mounting groove and by the described pivotable jack-post (12a of portion at two ends, 12b) with the cooperation of corresponding described pivotable jack-post mating groove and can pivotable, and between described switching shifting block (12) and the bottom surface of described shifting block mounting groove, yielding support has shifting block pretension elastic component, the described pivotable jack-post (12a of portion at described switching shifting block (12) two ends, 12b) can in the described pivotable jack-post mating groove of correspondence, slide, thereby by the elastic force of described shifting block pretension elastic component, described switching shifting block (12) and the inner peripheral surface of described outer revolving part (1) are kept in touch, and
On the both sides sidewall of described switching shifting block mounting groove, be formed with opening, contact to make described switching shifting block (12) to form ejection with described the first horizontal eccentric chock (4) or the second horizontal eccentric chock (13) by corresponding described opening.
9. horizontal eccentric chock free wheel device according to claim 8, wherein, described shifting block pretension elastic component is shifting block preloading spring (16), the bottom surface of described shifting block mounting groove is formed with shifting block preloading spring mounting hole, described shifting block preloading spring (16) is arranged in described shifting block preloading spring mounting hole, keeps in touch with the inner peripheral surface of described outer revolving part (1) thereby obtain described switching shifting block (12) by elastic force.
10. horizontal eccentric chock free wheel device according to claim 7, wherein, described internal layer revolving part (9) upper spaced apart the first axial limiting part (3) of spin axis and the second axial limiting part (5) along described free wheel device, described the first horizontal eccentric chock (4) and the second horizontal eccentric chock (13) are positioned between this first axial limiting part (3) and the second axial limiting part (5).
11. horizontal eccentric chock free wheel devicees, comprise outer and internal layer revolving part (1,9), wherein,
Described internal layer revolving part (9) comprises eccentric stop auxiliary section (9b), between the eccentric stop auxiliary section (9b) of the inner peripheral surface of described outer revolving part (1) and this internal layer revolving part, be provided with horizontal eccentric chock, the outer surface (20) of described horizontal eccentric chock is the arc surface coordinating with the inner peripheral surface of described outer revolving part (1), internal surface (21) is and outer surface (20) the out-of-alignment cambered surface of this horizontal eccentric chock, to make thickness (d) circumferentially the increasing to the second end (23) from the first end (22) of this horizontal eccentric chock along described outer revolving part of this horizontal eccentric chock, and between the outer surface of the internal surface of this horizontal eccentric chock (21) and eccentric stop auxiliary section (9b), be provided with and all contact with the outer surface of eccentric stop auxiliary section (9b) with the internal surface (21) of this horizontal eccentric chock and along multiple rolling bearing parts (26) of being circumferentially arranged in order, and
On described internal layer revolving part (9), be formed with the shifting block assembly department corresponding to second end (23) of horizontal eccentric chock described in each, on each shifting block assembly department, be separately installed with the switching toggle mechanism for horizontal eccentric chock described in ejection, the shifting block part that switches toggle mechanism described in each contacts with the inner peripheral surface of described outer revolving part (1) respectively, being driven by this skin revolving part (1) by friction, thereby in the time that the shifting block part of described switching toggle mechanism corresponding to second end (23) of described horizontal eccentric chock is driven the second end (23) that promotes this horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part (1,9) between, to make described horizontal eccentric chock circumferentially contacting and wedging with the inner peripheral surface formation cambered surface of this skin revolving part (1) along described outer revolving part (1), and described horizontal eccentric chock forms wedging state by described rolling bearing part (26) and the outer surface of the eccentric stop auxiliary section (9b) of described internal layer revolving part, and in the time that the shifting block part of described switching toggle mechanism corresponding to second end (23) of described horizontal eccentric chock is driven the second end (23) away from the described horizontal eccentric chock of correspondence, described horizontal eccentric chock moves to non-wedging state under the friction drive of the described rolling bearing part (26) between the internal surface (21) of described outer revolving part (1) and/or this horizontal eccentric chock and the outer surface of described eccentric stop auxiliary section (9b).
12. horizontal eccentric chock free wheel devicees according to claim 11, wherein, described rolling bearing part (26) is roller bearing part.
13. horizontal eccentric chock free wheel devicees according to claim 11, wherein, bearing member preloading spring (27) is installed on described internal layer revolving part (9), this bearing member preloading spring (27) circumferentially applies required elastic forepressure to described rolling bearing part (26) along described internal layer revolving part (9), so that described rolling bearing part (26) is in turn pressed against on the bearing member blocked part (9d) of described internal layer revolving part (9).
14. horizontal eccentric chock free wheel devicees according to claim 11, wherein, described horizontal eccentric chock comprises the first horizontal eccentric chock (4) and the second horizontal eccentric chock (13) that the spin axis (O) with respect to described free wheel device is arranged symmetrically with, on described internal layer revolving part (9), be formed with accordingly the described eccentric stop auxiliary section (9b) symmetrical with respect to described spin axis (O), and this first and second horizontal eccentric chock (4, 13) internal surface (21) and described in each outer surface of eccentric stop auxiliary section (9b) be respectively the eccentric circle cambered surface of spin axis (O) described in center axis deviation, and
Described shifting block assembly department on described internal layer revolving part (9) comprises the first shifting block assembly department (24) and the second shifting block assembly department (25) that are separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department (24) is positioned between the first end (22) of described the first horizontal eccentric chock (4) and second end (23) of described the second horizontal eccentric chock (13), to make second end (23) of this first shifting block assembly department (24) corresponding to described the second horizontal eccentric chock (13); Described the second shifting block assembly department (25) is positioned between second end (23) of described the first horizontal eccentric chock (4) and the first end (22) of described the second horizontal eccentric chock (13), to make second end (23) of this second shifting block assembly department (25) corresponding to described the first horizontal eccentric chock (4).
15. according to claim 11 to the horizontal eccentric chock free wheel device described in any one in 14, wherein,
Shifting block assembly department (24 described in each, 25) be respectively the shifting block protruding from the periphery of described internal layer revolving part (9) bump (9c) is installed, this shifting block is installed on bump (9c) and is formed with and switches shifting block mounting groove, this switching shifting block mounting groove has respectively the first side wall (34) and the second sidewall (35) along the circumferential relative both sides of described internal layer revolving part (9), described the second sidewall (35) along described internal layer revolving part (9) circumferentially than second end (23) of the described horizontal eccentric chock of the more close correspondence of described the first side wall (34); Described switching shifting block mechanism is arranged in described switching shifting block mounting groove, this switching shifting block mechanism comprises skewback (28) and the switching roller (12c) as described shifting block part, between wherein said skewback (28) and the bottom surface of described shifting block mounting groove, yielding support has shifting block pretension elastic component, and this shifting block pretension elastic component yielding support is in a side of close described second sidewall (35) of described skewback (28) bottom surface; Described switching roller (12c) is parallel to the axial of described outer revolving part (9), and this switching roller (12c) is arranged between the internal surface of described outer revolving part (1) and the inclined-plane of skewback (28) and with the inner peripheral surface of this skin revolving part (1) and all contacts with the inclined-plane of described skewback (28); And
On described the second sidewall (35), be formed with opening, can extend in described switching shifting block mounting groove by this opening with the second end (23) that makes corresponding described horizontal eccentric chock; The inclined-plane of described skewback (28) is the inclined bottom surface towards described switching shifting block mounting groove from the side near described the second sidewall (35) to the opposite side near described the first side wall (34), described the first side wall is provided with roller prepressing elastic on (34), this roller prepressing elastic applies the elastic forepressure towards described the second sidewall (35) to described switching roller (12c), so that described switching roller (12c) is kept and the contacting of the inner peripheral surface of described outer revolving part (1) and the inclined-plane of described skewback (28) under non-wedging state.
16. horizontal eccentric chock free wheel devicees according to claim 15, wherein, described shifting block pretension elastic component is shifting block preloading spring (16), the bottom of described switching shifting block mounting groove is formed with shifting block preloading spring mounting hole (30), and described shifting block preloading spring (16) is arranged in this shifting block preloading spring mounting hole (30); Described roller prepressing elastic is roller loaded spring (29), is formed with roller loaded spring mounting hole (31) on described the first side wall (34), and described roller loaded spring (29) is arranged in this roller loaded spring mounting hole (31); And the spring rate of described shifting block preloading spring (16) is greater than the spring rate of described roller loaded spring (29).
17. horizontal eccentric chock free wheel devicees according to claim 15, wherein, described in each, second end (23) of horizontal eccentric chock is formed with or is provided with ejection bump (36), the upper described opening forming of described the second sidewall (35) is ejection bump motion opening (32), second end (23) of described horizontal eccentric chock extend into by described ejection bump (32) separately in the switching shifting block mounting groove of corresponding shifting block assembly department, so that can being contacted with this ejection bump (36) in the time that described the second sidewall (35) moves being driven, described switching roller (12c) promotes described horizontal eccentric chock motion.
18. horizontal eccentric chock free wheel devicees according to claim 15, wherein, described the first side wall (34) and described the second sidewall (35) are connected with respectively joint (33) between the axial same one end of described outer revolving part (1), between the bottom surface of the bottom surface of described joint (33) and described switching shifting block mounting groove, there is interval, and the bottom surface of described joint (33) as described skewback (28) stop surface towards the bottom surface motion away from described switching shifting block mounting groove.
19. horizontal eccentric chock free wheel devicees according to claim 15, wherein, the inclined-plane of described skewback (28) is 5 ° to 15 ° with respect to the angle of inclination of the bottom surface of described switching shifting block mounting groove.
20. horizontal eccentric chock free wheel devicees, comprise outer and internal layer revolving part (1,9), wherein,
Described outer revolving part (1) comprises eccentric stop auxiliary section (1d), between the eccentric stop auxiliary section (1d) of the outer circumferential face of described internal layer revolving part (9) and this skin revolving part, be provided with horizontal eccentric chock, the internal surface (21) of described horizontal eccentric chock is the arc surface coordinating with the outer circumferential face of described internal layer revolving part (9), outer surface (20) is and internal surface (21) the out-of-alignment cambered surface of this horizontal eccentric chock, to make thickness (d) circumferentially the increasing to the second end (23) from the first end (22) of described horizontal eccentric chock along described internal layer revolving part of this horizontal eccentric chock, and between the internal surface of the outer surface of this horizontal eccentric chock (20) and described eccentric stop auxiliary section (1d), be provided with and all contact with the internal surface of eccentric stop auxiliary section (1d) with the outer surface (20) of this horizontal eccentric chock and along multiple rolling bearing parts (26) of being circumferentially arranged in order, and
On described outer revolving part (1), be formed with the shifting block assembly department corresponding to second end (23) of horizontal eccentric chock described in each, on each shifting block assembly department, be separately installed with the switching toggle mechanism for horizontal eccentric chock described in ejection, the shifting block part that switches toggle mechanism described in each contacts with the outer circumferential face of described internal layer revolving part (9) respectively, being driven by this internal layer revolving part (9) by friction, thereby in the time that the shifting block part of described switching toggle mechanism corresponding to second end (23) of described horizontal eccentric chock is driven the second end (23) that promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part (1,9) between, to make described horizontal eccentric chock circumferentially contacting and wedging with the outer circumferential face formation cambered surface of this internal layer revolving part (9) along described internal layer revolving part (9), and described horizontal eccentric chock forms wedging state by described rolling bearing part (26) and the internal surface of the eccentric stop auxiliary section (1d) of described outer revolving part, and in the time that the shifting block part of described switching toggle mechanism corresponding to second end (23) of described horizontal eccentric chock is driven the second end (23) away from this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state under the friction drive of the described rolling bearing part (26) between the outer surface (20) of described internal layer revolving part (9) and/or this horizontal eccentric chock and the internal surface of described eccentric stop auxiliary section (1d).
21. horizontal eccentric chock free wheel devicees according to claim 20, wherein, described rolling bearing part (26) is roller bearing part.
22. horizontal eccentric chock free wheel devicees according to claim 20, wherein, bearing member preloading spring (27) is installed on described outer revolving part (1), this bearing member preloading spring (27) circumferentially applies required elastic forepressure to described rolling bearing part (26) along described outer revolving part (1), so that described rolling bearing part (26) is in turn pressed against on the bearing member blocked part (9d) of described outer revolving part (1).
23. horizontal eccentric chock free wheel devicees according to claim 20, wherein, described horizontal eccentric chock comprises the first horizontal eccentric chock (4) and the second horizontal eccentric chock (13) that the spin axis (O) with respect to described free wheel device is arranged symmetrically with, on described outer revolving part (1), be formed with accordingly the described eccentric stop auxiliary section (1d) symmetrical with respect to described spin axis (O), and this first and second horizontal eccentric chock (4, 13) outer surface (20) and described in each internal surface of eccentric stop auxiliary section (1d) be respectively the eccentric circle cambered surface of spin axis (O) described in center axis deviation, and
Described shifting block assembly department on described outer revolving part (1) comprises the first shifting block assembly department (24) and the second shifting block assembly department (25) that are separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department (24) is positioned between the first end (22) of described the first horizontal eccentric chock (4) and second end (23) of described the second horizontal eccentric chock (13), to make second end (23) of this first shifting block assembly department (24) corresponding to described the second horizontal eccentric chock (13); Described the second shifting block assembly department (25) is positioned between second end (23) of described the first horizontal eccentric chock (4) and the first end (22) of described the second horizontal eccentric chock (13), to make second end (23) of this second shifting block assembly department (25) corresponding to described the first horizontal eccentric chock (4).
24. according to the horizontal eccentric chock free wheel device described in any one in claim 20 to 23, wherein,
Shifting block assembly department (24 described in each, 25) shifting block being respectively from protruding in the interior week of described outer revolving part (1) is installed bump (9c), this shifting block is installed on bump (9c) and is formed with and switches shifting block mounting groove, this switching shifting block mounting groove has respectively the first side wall (34) and the second sidewall (35) along the circumferential relative both sides of described outer revolving part (1), described the second sidewall (35) along described outer revolving part (1) circumferentially than second end (23) of the described horizontal eccentric chock of the more close correspondence of described the first side wall (34); Described switching shifting block mechanism is arranged in described switching shifting block mounting groove, this switching shifting block mechanism comprises skewback (28) and the switching roller (12c) as described shifting block part, between wherein said skewback (28) and the bottom surface of described shifting block mounting groove, yielding support has shifting block pretension elastic component, and this shifting block pretension elastic component yielding support is in a side of close described second sidewall (35) of described skewback (28) bottom surface; Described switching roller (12c) is parallel to the axial of described internal layer revolving part (1), and this switching roller (12c) is arranged between the outer circumferential face of described internal layer revolving part (1) and the inclined-plane of skewback (28) and with the outer circumferential face of this internal layer revolving part (9) and all contacts with the inclined-plane of described skewback (28); And
On described the second sidewall (35), be formed with opening, can extend in described switching shifting block mounting groove by this opening with the second end (23) that makes corresponding described horizontal eccentric chock; The inclined-plane of described skewback (28) is the inclined bottom surface towards described switching shifting block mounting groove from the side near described the second sidewall (35) to the opposite side near described the first side wall (34), described the first side wall is provided with roller prepressing elastic on (34), this roller prepressing elastic applies the elastic forepressure towards described the second sidewall (35) to described switching roller (12c), so that described switching roller (12c) is kept and the contacting of the outer circumferential face of described internal layer revolving part (9) and the inclined-plane of described skewback (28) under non-wedging state.
25. horizontal eccentric chock free wheel devicees according to claim 24, wherein, described shifting block pretension elastic component is shifting block preloading spring (16), the bottom of described switching shifting block mounting groove is formed with shifting block preloading spring mounting hole (30), and described shifting block preloading spring (16) is arranged in this shifting block preloading spring mounting hole (30); Described roller prepressing elastic is roller loaded spring (29), is formed with roller loaded spring mounting hole (31) on described the first side wall (34), and described roller loaded spring (29) is arranged in this roller loaded spring mounting hole (31); And the spring rate of described shifting block preloading spring (16) is greater than the spring rate of described roller loaded spring (29).
26. horizontal eccentric chock free wheel devicees according to claim 24, wherein, described in each, second end (23) of horizontal eccentric chock is formed with or is provided with ejection bump (36), the upper described opening forming of described the second sidewall (35) is ejection bump motion opening (32), second end (23) of described horizontal eccentric chock extend into by described ejection bump (32) separately in the switching shifting block mounting groove of corresponding shifting block assembly department, so that can being contacted with this ejection bump (36) in the time that described the second sidewall (35) moves being driven, described switching roller (12c) promotes described horizontal eccentric chock motion.
27. horizontal eccentric chock free wheel devicees according to claim 24, wherein, described the first side wall (34) and described the second sidewall (35) are connected with respectively joint (33) between the axial same one end of described internal layer revolving part (9), between the bottom surface of the bottom surface of described joint (33) and described switching shifting block mounting groove, there is interval, and the bottom surface of described joint (33) as described skewback (28) stop surface towards the bottom surface motion away from described switching shifting block mounting groove.
28. horizontal eccentric chock free wheel devicees according to claim 24, wherein, the inclined-plane of described skewback (28) is 5 ° to 15 ° with respect to the angle of inclination of the bottom surface of described switching shifting block mounting groove.
29. horizontal eccentric chock free wheel devicees, comprise outer and internal layer revolving part (1,9), wherein,
Described outer revolving part (1) comprises eccentric stop auxiliary section (1d), between the eccentric stop auxiliary section (1d) of the outer circumferential face of described internal layer revolving part (9) and this skin revolving part, be provided with horizontal eccentric chock, the internal surface (21) of described horizontal eccentric chock is the arc surface coordinating with the outer circumferential face of described internal layer revolving part (9), outer surface (20) is and internal surface (21) the out-of-alignment cambered surface of this horizontal eccentric chock, to make radial thickness (d) circumferentially the increasing to the second end (23) from the first end (22) of this horizontal eccentric chock along described internal layer revolving part of this horizontal eccentric chock, and the outer surface of this horizontal eccentric chock (20) matches with the internal surface of described eccentric stop auxiliary section (9b), and
On described outer revolving part (1), be formed with and correspond respectively to the first end (22) of described horizontal eccentric chock and the shifting block assembly department of the second end (23), on each shifting block assembly department, be separately installed with the switching shifting block (12) for horizontal eccentric chock described in ejection, each one end of switching shifting block contacts with the inner peripheral surface of described internal layer revolving part (9) respectively, being driven by this internal layer revolving part (9) by friction, thereby in the time that switching shifting block corresponding to the first end (22) of described horizontal eccentric chock promotes this horizontal eccentric chock, described horizontal eccentric chock is at described skin and internal layer revolving part (1,9) between, move to non-wedging state, in the time that switching shifting block corresponding to second end (23) of described horizontal eccentric chock promotes described horizontal eccentric chock, described horizontal eccentric chock wedging is at described skin and internal layer revolving part (1,9) between and circumferentially contacting with the internal surface formation cambered surface of the outer circumferential face of this internal layer revolving part (9) and the eccentric stop auxiliary section (1d) of described outer revolving part along described internal layer revolving part (9).
CN201310216209.7A 2013-01-31 2013-06-03 Horizontal eccentric scotch freewheel clutch Expired - Fee Related CN103967967B (en)

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CN104295635A (en) * 2014-10-23 2015-01-21 重庆从仁机电有限公司 Roller overrun clutch for motorcycle
WO2017004838A1 (en) * 2015-07-03 2017-01-12 深圳市超越传动科技有限公司 Low-pair cambered-surface stop block type overrunning clutch
WO2017004837A1 (en) * 2015-07-03 2017-01-12 深圳市超越传动科技有限公司 Low-pair cambered-surface stop block type overrunning clutch
CN112406777A (en) * 2020-11-19 2021-02-26 东风汽车有限公司 Actively controlled belt clutch and actively controlled belt system

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CN101182867A (en) * 2007-12-26 2008-05-21 重庆工商大学 Wedge type over running clutch
CN203374695U (en) * 2013-01-31 2014-01-01 深圳市超越传动科技有限公司 Horizontal eccentric stop block overrunning clutch

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US524652A (en) * 1894-08-14 Bicycle
US2785782A (en) * 1953-07-08 1957-03-19 Borg Warner Wedge type one-way clutch
CN2134534Y (en) * 1992-04-21 1993-05-26 机械电子工业部第二○二研究所 Fist-shaped wedge type single-way over-run clutch
CN101182867A (en) * 2007-12-26 2008-05-21 重庆工商大学 Wedge type over running clutch
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CN104295635A (en) * 2014-10-23 2015-01-21 重庆从仁机电有限公司 Roller overrun clutch for motorcycle
CN104295635B (en) * 2014-10-23 2016-08-24 重庆从仁机电有限公司 A kind of roller overdrive clutch of motorcycle
WO2017004838A1 (en) * 2015-07-03 2017-01-12 深圳市超越传动科技有限公司 Low-pair cambered-surface stop block type overrunning clutch
WO2017004837A1 (en) * 2015-07-03 2017-01-12 深圳市超越传动科技有限公司 Low-pair cambered-surface stop block type overrunning clutch
CN112406777A (en) * 2020-11-19 2021-02-26 东风汽车有限公司 Actively controlled belt clutch and actively controlled belt system
CN112406777B (en) * 2020-11-19 2022-05-27 东风汽车有限公司 Actively controlled belt clutch and actively controlled belt system

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