CN203374695U - Horizontal eccentric stop block overrunning clutch - Google Patents

Abstract

A horizontal eccentric stop block overrunning clutch comprises an outer layer rotating piece (1) and an inner layer rotating piece (9), and a horizontal eccentric stop block is arranged between the inner layer rotating piece (9) and the outer layer rotating piece (1). The radial thickness (d) of the horizontal eccentric stop block increases in the circumferential direction of the outer layer rotating piece from a first end (22) to a second end (23). Poking block mounting parts corresponding to the first end (22) and the second end (23) of the horizontal eccentric stop block respectively are formed on the inner layer rotating piece (9). A switching poking block (12) used for pushing the horizontal eccentric stop block is installed on each poking block mounting part. One end of each switching poking block makes contact with the inner circumferential face of the outer layer rotating piece (1) so that the switching poking blocks can be driven by the outer layer rotating piece (1) through friction. The horizontal eccentric stop block overrunning clutch breaks through the technical bottleneck in the prior art and can ideally adapt to the large torque load working condition, the high speed transmission working condition, the high frequency impact abrasion working condition and the like.

Description

Horizontal eccentric chock free wheel device

Technical field

The utility model relates to a kind of clutch, particularly, relates to a kind of horizontal eccentric chock free wheel device, and 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 adopted, 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 the active ratchet promotes ratchet and carries out the step-by-step movement rotation.Because the ratchet type overrunning clutch traverse can only have been done the level adjusting, ratchet sliding on the back of tooth easily causes noise and impact wear in addition, therefore should not be 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 the active rotation part, and outer ring 101a is as driven revolving part.When in Fig. 1, ring 102a clockwise rotates with respect to outer ring 101a, roller 103a is driven outer ring 101a by wedging and rotates, and free wheel device is in jointing state, and interior ring 102a and outer ring 101a rotate jointly; When interior ring 102a rotates counterclockwise with respect to outer ring 101a, roller 103a is retracted into the 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 drives the rotating in same direction along clockwise direction with interior ring 102a by another drive unit, when the rotating speed of outer ring 101a during lower than interior ring 102a, now from relative motion relation, say, 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 higher than interior ring 102a, now from relative motion relation, say, interior ring 102a rotates counterclockwise with respect to outer ring 101a, 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 outer ring 101b with the raceway arc surface on interior ring 102b periphery respectively.In the course of the work, when 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, so 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 can't 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 the 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, the ratchet type overrunning clutch traverse can only have been made level and regulate, and applies less.Be mainly with roller type and Wedge type over running clutch at present on practice, from its operating conditions, have serious defect on its structural design.

Particularly, referring to Fig. 3 and Fig. 4:

The first, the choosing of wedging angle can't be taken into account abrasion resistance and moment of torsion and transmit performance: Fig. 3 and Fig. 4 and all take Wedge type over running clutch and show as 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 skills 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, the abrasion resistance variation, this can make the operating life of voussoir reduce.If increase the wedging angle, although effectively friction layer is increased, abrasion resistance strengthens, and the wedging performance weakens relatively, and this can cause, and the core technology index of free wheel device---the 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 when surmounting state should not significantly impact outer ring and interior ring independent rotation relative to each other, therefore roller and voussoir need to keep the contact size of less apparently, but under jointing state, outer ring and interior ring need to carry out transmitting torque by the wedging of roller and voussoir so that outer ring and interior ring associated movement, the roller that this size is less or voussoir obviously are difficult to transmit larger moment of torsion at the 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, when the 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 the B in Fig. 3 and Fig. 4), even 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, usually produce skidding between outer ring, 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, limited the moment of torsion bearing capacity of existing free wheel device, also greatly reduces the working life of free wheel device, makes functional reliability and the usability of the equipment that adopts free wheel device significantly reduce.

Because the said structure defect of prior art free wheel device needs a kind of novel free wheel device of design, to overcome the shortcoming of prior art.

The model utility content

Technical problem to be solved in the utility model 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 utility model, the utility model 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section of described outer revolving part and this internal layer revolving part, the outer surface of described horizontal eccentric chock is the arc surface coordinated with the inner peripheral surface of described outer revolving part, internal surface is the outer surface out-of-alignment cambered surface with this horizontal eccentric chock, so that the radial thickness of this horizontal eccentric chock circumferentially increasing to the second end from the first end of this horizontal eccentric chock along described outer revolving part, and the internal surface of this horizontal eccentric chock matches with the outer surface of described eccentric stop auxiliary section, and be formed with the first end that corresponds respectively to described horizontal eccentric chock and the shifting block assembly department of the second end on described internal layer revolving part, be separately installed with the switching shifting block for the described horizontal eccentric chock of ejection on each shifting block assembly department, one end of each switching shifting block contacts with the inner peripheral surface of described outer revolving part respectively, being driven by this skin revolving part by friction, when thereby at the first end of described horizontal eccentric chock, corresponding switching shifting block promotes this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state between described skin and internal layer revolving part, when at the second end of described horizontal eccentric chock, corresponding switching shifting block 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 eccentric stop auxiliary section of the inner peripheral surface of this skin revolving part and 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 the spin axis with respect to described free wheel device is arranged symmetrically with, be formed with accordingly the described eccentric stop auxiliary section with respect to described spin axis symmetry on described internal layer revolving part, and the outer surface of the internal surface of this first and second horizontal eccentric chock and each described eccentric stop auxiliary section is respectively the eccentric circle cambered surface of the described spin axis of center axis deviation; And the 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 is separately installed with described switching shifting block, wherein said the first shifting block installation position is between the second end of the first end of described the first horizontal eccentric chock and described the second horizontal eccentric chock, so that this first shifting block assembly department is 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 first end of the second end of described the first horizontal eccentric chock and described the second horizontal eccentric chock, so that this second shifting block assembly department is 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 with on the second end and the first end of described the second horizontal eccentric chock be respectively equipped with the ejection bump contacted for the described switching shifting block with corresponding on the second end; Perhaps on the side, both sides of the switching shifting block on described the first shifting block assembly department and on the side, both sides of the switching shifting block on described the second shifting block assembly department, be respectively equipped with the ejection bump for the horizontal eccentric chock of ejection described first or the second horizontal eccentric chock.

Preferably, each described ejection bump is for regulating the adjusting bolt of protruding length by screw-thread fit.

Preferably, between the described 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 the described 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 the described first and second horizontal eccentric chocks are not when 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 the chock preloading spring, be formed with respectively the spring trepanning 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 inserted with slidably respectively the spring cover in each described spring trepanning, be respectively equipped with the described chock preloading spring in its pre-compressed state in each described spring cover, thereby 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 respectively elastic support corresponding described spring cover is arranged.

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 section 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 protruded from described internal layer revolving part is installed bump, this shifting block is installed on bump and is formed with switching shifting block mounting groove, be formed with respectively the pivotable jack-post mating groove radially extended along described outer revolving part on the two ends end wall of this switching shifting block mounting groove, described switching shifting block is arranged in described switching shifting block mounting groove and the described pivotable jack-post section by two ends can pivotable with the cooperation of corresponding described pivotable jack-post mating groove, and between the bottom surface of described switching shifting block and described shifting block mounting groove, yielding support has shifting block pretension elastic component, the described pivotable jack-post section at described switching shifting block two ends can slide in the described pivotable jack-post mating groove of correspondence, thereby the elastic force by described shifting block pretension elastic component makes the inner peripheral surface of described switching shifting block and described outer revolving part keep in touch, and be formed with opening on the both sides sidewall of described switching shifting block mounting groove, so that can forming ejection with the described first horizontal eccentric chock or the second horizontal eccentric chock by corresponding described opening, described switching shifting block contacts.

Particularly, described shifting block pretension elastic component is the 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 the spin axis of described free wheel device and the second axial limiting part, the described 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 utility model, the utility model 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section of the inner peripheral surface of described outer revolving part and this internal layer revolving part, the outer surface of described horizontal eccentric chock is the arc surface coordinated with the inner peripheral surface of described outer revolving part, internal surface is the outer surface out-of-alignment cambered surface with this horizontal eccentric chock, so that the thickness of this horizontal eccentric chock circumferentially increasing to the second end from the first end of this horizontal eccentric chock along described outer revolving part, and be provided with between the outer surface of the internal surface of this horizontal eccentric chock and eccentric stop auxiliary section and all contact with the outer surface of eccentric stop auxiliary section with the internal surface of this horizontal eccentric chock and along a plurality of rolling bearing parts that circumferentially are arranged in order, and be formed with the shifting block assembly department corresponding to the second end of each described horizontal eccentric chock on described internal layer revolving part, be separately installed with the switching toggle mechanism for the described horizontal eccentric chock of ejection on each shifting block assembly department, the shifting block part of each described switching toggle mechanism contacts with the inner peripheral surface of described outer revolving part respectively, being driven by this skin revolving part by friction, when thereby at the second end of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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, so that 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 the wedging state by the outer surface of the eccentric stop auxiliary section of described rolling bearing part and described internal layer revolving part, and when at the second end of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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 outer surface of the internal surface of described outer revolving part and/or this horizontal eccentric chock and described eccentric stop auxiliary section drives.

Particularly, described rolling bearing part is the roller bearing part.

More specifically, on described internal layer revolving part, the 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 in turn presses 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 the spin axis with respect to described free wheel device is arranged symmetrically with, be formed with accordingly the described eccentric stop auxiliary section with respect to described spin axis symmetry on described internal layer revolving part, and the outer surface of the internal surface of this first and second horizontal eccentric chock and each described eccentric stop auxiliary section is respectively the eccentric circle cambered surface of the described spin axis of center axis deviation; And the 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 is separately installed with described switching toggle mechanism, wherein said the first shifting block installation position is between the second end of the first end of described the first horizontal eccentric chock and described the second horizontal eccentric chock, so that this first shifting block assembly department is corresponding to the second end of described the second horizontal eccentric chock; Described the second shifting block installation position is between the first end of the second end of described the first horizontal eccentric chock and described the second horizontal eccentric chock, so that this second shifting block assembly department is corresponding to the second end of described the first horizontal eccentric chock.

Preferably, each described shifting block assembly department is respectively that the shifting block protruded from the periphery of described internal layer revolving part is installed bump, this shifting block is installed on bump and is formed with switching shifting block mounting groove, along described internal layer revolving part, circumferential relative both sides have respectively the first side wall and the second sidewall to this switching shifting block mounting groove, 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 as the switching roller of 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 be parallel to described outer revolving part axially, between the internal surface that this switching roller is arranged in described outer revolving part and the inclined-plane of skewback and all contact with the inclined-plane of described skewback with the inner peripheral surface of this skin revolving part; And be formed with opening on described the second sidewall, so that the second end of corresponding described horizontal eccentric chock can extend in described switching shifting block mounting groove by this opening; 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, the 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 keeps and the contacting of the inclined-plane of the inner peripheral surface of described outer revolving part and described skewback under non-wedging state.

Specifically selectively, described shifting block pretension elastic component is the 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 the 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, the second end of each described horizontal eccentric chock is formed with or is provided with the ejection bump, the described opening formed on described the second sidewall is ejection bump motion opening, the second end of described horizontal eccentric chock extend in the switching shifting block mounting groove of corresponding shifting block assembly department by described ejection bump separately, promotes described horizontal eccentric chock motion so that described switching roller can contact with this ejection bump when described the second sidewall motion being driven.

More specifically, be connected with respectively joint between described the first side wall and described the second sidewall same end axial along described outer revolving part, there is interval between the bottom surface of the bottom surface of described joint and described switching shifting block mounting groove, and the bottom surface of described joint as described skewback the stop surface towards the bottom surface away from described switching shifting block mounting groove motion.

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 utility model 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section of the outer circumferential face of described internal layer revolving part and this skin revolving part, the internal surface of described horizontal eccentric chock is the arc surface coordinated with the outer circumferential face of described internal layer revolving part, outer surface is the internal surface out-of-alignment cambered surface with this horizontal eccentric chock, so that the thickness of this horizontal eccentric chock circumferentially increasing to the second end from the first end of described horizontal eccentric chock along described internal layer revolving part, and be provided with between the internal surface of the outer surface of this horizontal eccentric chock and described eccentric stop auxiliary section and all contact with the internal surface of eccentric stop auxiliary section with the outer surface of this horizontal eccentric chock and along a plurality of rolling bearing parts that circumferentially are arranged in order, and be formed with the shifting block assembly department corresponding to the second end of each described horizontal eccentric chock on described outer revolving part, be separately installed with the switching toggle mechanism for the described horizontal eccentric chock of ejection on each shifting block assembly department, the shifting block part of each described switching toggle mechanism contacts with the outer circumferential face of described internal layer revolving part respectively, being driven by this internal layer revolving part by friction, when thereby at the second end of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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, so that 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 the wedging state by the internal surface of the eccentric stop auxiliary section of described rolling bearing part and described outer revolving part, and when at the second end of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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 internal surface of the outer surface of described internal layer revolving part and/or this horizontal eccentric chock and 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 utility model 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section of the outer circumferential face of described internal layer revolving part and this skin revolving part, the internal surface of described horizontal eccentric chock is the arc surface coordinated with the outer circumferential face of described internal layer revolving part, outer surface is the internal surface out-of-alignment cambered surface with this horizontal eccentric chock, so that the radial thickness of this horizontal eccentric chock circumferentially increasing to the second end from the first end of this horizontal eccentric chock along described internal layer revolving part, and the outer surface of this horizontal eccentric chock matches with the internal surface of described eccentric stop auxiliary section, and be formed with the first end that corresponds respectively to described horizontal eccentric chock and the shifting block assembly department of the second end on described outer revolving part, be separately installed with the switching shifting block for the described horizontal eccentric chock of ejection on each shifting block assembly department, one end of each 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, when thereby at the first end of described horizontal eccentric chock, corresponding switching shifting block promotes this horizontal eccentric chock, described horizontal eccentric chock moves to non-wedging state between described skin and internal layer revolving part, when at the second end of described horizontal eccentric chock, corresponding switching shifting block 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 eccentric stop auxiliary section of the outer circumferential face of this internal layer revolving part and described outer revolving part along described internal layer revolving part.

Pass through technique scheme, horizontal eccentric chock free wheel device of the present utility model is owing to scientifically having adopted horizontal eccentric chock structure, make chock when the wedging working position, all obtained good guarantee with parallel to an axis degree and the laminating degree of inside and outside revolving part, add that the 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 utility model, solved dexterously the pretension elastic force of chock and surmounted the wear problem that state brings, thereby having made the free wheel device that has been significantly higher than prior art working life of the utility model free wheel device simultaneously.In addition, because horizontal eccentric chock overrun clutch structure of the present utility model is reasonable, it has not only reduced the technical difficulty of manufacturing processing and, to the performance requirement of equipment, has made manufacture cost be 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 utility model 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 utility model can be applied to vehicle and usings as the special-purpose free wheel device of vehicle sliding, to solve car industry vehicle sliding recent decades free wheel device, has the technological deficiency that is difficult to bear the high pulling torque load.

Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.

The accompanying drawing explanation

Following accompanying drawing is used to provide further understanding of the present utility model; and form the part of specification; itself and following embodiment one are used from explanation the utility model, but protection domain of the present utility model 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 utility model embodiment, wherein, in order to show the internal structure of this horizontal eccentric chock free wheel device, outer revolving part and bearing (ball) cover have been taked to cut open display mode.

Fig. 6 is the sectional structure schematic diagram dissectd along the A-A line in Fig. 5, wherein in order to show that the switching shifting block can change position and make the switching shifting block in the working position different from Fig. 5.

Fig. 7 is the sectional structure schematic diagram dissectd along the B-B line in Fig. 5, wherein in order to show that the switching shifting block can change position and make the switching 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 utility model when 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 utility model, wherein the structure at switching shifting block place has been carried out simplifying showing.

Figure 11 is the structural representation of the horizontal eccentric chock free wheel device of the another kind of embodiment of the utility model, wherein for clear, shows that the structure at switching roller place has adopted the 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 to the form of cutting demonstration open and has omitted skewback and parts such as switching shifting block etc.

Figure 13 is the structural representation of the horizontal eccentric chock free wheel device of another embodiment of the utility model, is formed with eccentric stop auxiliary section on its ectomesoderm revolving part.

The utility model description of reference numerals:

1 outer revolving part; The 1a tapped hole;

The 1b inner peripheral surface; The 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;

The 9a spline part; The eccentric stop of 9b auxiliary section;

The 9c shifting block is installed bump; 10 seal rings;

11 second bearings; 12 switching shifting blocks;

12a pivotable jack-post section; 12b pivotable jack-post section

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, embodiment of the present utility model is elaborated; should be understood that; embodiment described herein is only for description and interpretation the utility model, and protection domain of the present utility model is not limited to following embodiment.

The utility model, for the structural imperfection of existing free wheel device, provides a kind of horizontal eccentric chock free wheel device of brand new, and it can adapt to high pulling torque, high-revolving application, and has working life and the functional reliability of remarkable improvement.

At first it should be noted that, horizontal eccentric chock free wheel device of the present utility model, wherein said " horizontal " is mainly chock along between the outer revolving part 1 of circumferentially being 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 utility model 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 the 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 that the spin axis O of free wheel device is 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 utility model 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 utility model is not limited to this, for example in Fig. 6, the second eccentric chock 13 can form as one with internal layer revolving part 9, that is to say, cancelled 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 by the first horizontal eccentric retainer 1, can realize the purpose of this utility model equally.That is to say; in technical conceive scope of the present utility model; no matter those skilled in the art carry out any simple constructional variant to the utility model, as long as it possesses the technical characteristics limited in the following basic embodiment of the utility model, it all belongs to protection domain of the present utility model.

At first basic embodiment of the present utility model is described, suitably referring to shown in Fig. 5 to Fig. 7, the horizontal eccentric chock free wheel device of the utility model basic embodiment comprises outer and internal layer revolving part 1, 9, wherein, internal layer revolving part 9 comprises eccentric stop auxiliary section 9b, be provided with horizontal eccentric chock between the eccentric stop auxiliary section 9b of outer revolving part 1 and internal layer revolving part 9, the outer surface 20 that the inner peripheral surface with outer revolving part 1 of described horizontal eccentric chock is relative is arc surface, it can be for example the coaxial arc surface be fitted to each other of the inner peripheral surface with this skin revolving part 1, the internal surface 21 of this horizontal eccentric chock for the outer surface 20 out-of-alignment cambered surfaces with this horizontal eccentric chock, (can be for arc surface but is not limited to arc surface by internal surface 20, can be also the continuous level and smooth cambered surface of curvature), so that the radial thickness D-shaped of described horizontal eccentric chock becomes 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 form internal surface 21 adaptations with horizontal eccentric chock.

Be formed with the first end 22 that corresponds respectively to horizontal eccentric chock and the shifting block assembly department of the second end 23 on internal layer revolving part 9, be separately installed with the switching shifting block 12 for the described horizontal eccentric chock of ejection on each described shifting block assembly department, one end of each described switching shifting block 12 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 when 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, when 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 eccentric stop auxiliary section 9b of the inner peripheral surface of this skin revolving part 1 and 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 utility model is by the outer revolving part 1 of switching shifting block 12 response and internal layer revolving part 9 rotation status relative to each other, for example, in Fig. 6, when 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 zone of spacing between outer revolving part 1 and internal layer revolving part 9, thereby in non-wedging state, form and surmount state.When 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 zone of spacing between outer revolving part 1 and internal layer revolving part 9, thereby form the wedging state, outer revolving part 1 rotates jointly with internal layer revolving part 9.Horizontal eccentric chock wedging during 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 eccentric stop auxiliary section 9b of the inner peripheral surface of this skin revolving part 1 and internal layer revolving part along outer revolving part 1.That is to say, because the utility model responds outer revolving part 1 and internal layer revolving part 9 rotation status relative to each other by switching shifting block 12, therefore what horizontal eccentric chock can be along outer revolving part 1 circumferentially forms longer length, for example in Fig. 6 the horizontal inner peripheral surface that occupies outer revolving part 1 of basic paving of horizontal eccentric chock 4 along circumferential half, the cambered surface contact that this forms thus when the wedging state can greatly improve the 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 switching shifting block 12 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, and gets final product can form the ejection campaign.The shifting block assembly department can form various structural type, and for example hereinafter the shifting block of preferred form is installed bump 24,25, and these all belong to protection domain of the present utility model.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 at Fig. 5 ectomesoderm revolving part 1, form the form of the sleeve member of an end sealing, the closed end of this sleeve member is connected with the splined shaft that forms spline part 1c, internal layer revolving part 9 one ends are inserted in outer revolving part 1, obviously can form rotatable support by clutch shaft bearing 2 and the second bearing 11, compress (by the bolt mounting holes 7a on tapped hole 1a and bearing (ball) cover 7 via bolton) in the bearing installation step hole 7c of the second bearing 11 on bearing (ball) cover 7 and by bearing (ball) cover 7, 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 the bearing (ball) cover interior edge face) and seal ring 7d.The 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 the restriction to the utility model protection domain; 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 the outer buttons rotary driving device of this inside and outside layer revolving part, such as the connection of key alligator groove, gear connection etc.Major technique design of the present utility model 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, for these conventional structures, will repeat no more.

On the basis of the above-mentioned basic embodiment of the utility model, shown in Fig. 6 and Fig. 7, in order to make free wheel device of the present utility model 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 the spin axis O with respect to described free wheel device is arranged symmetrically with.That is to say, under preferred constructive form of the present utility model, above-mentioned horizontal eccentric chock has symmetrical two, correspondingly, be formed with accordingly two eccentric stop auxiliary section 9b with respect to described spin axis O symmetry on described internal layer revolving part 9, and the outer surface of the internal surface 21 of these the first and second horizontal eccentric chocks 4,13 and each described eccentric stop auxiliary section 9b is respectively the eccentric circle cambered surface of the described spin axis O of center axis deviation.That is to say, in the sectional view of Fig. 6, under this preferred constructive form, the center of circle of the circular arc line of the outer surface of two described eccentric stop auxiliary section 9b is the above and below in spin axis O respectively.

Under above-mentioned preferred constructive form, a switching 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 is separately installed with described switching shifting block 12, wherein said the first shifting block assembly department 24 is between the second end 23 of the first end 22 of the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13, so that this first shifting block assembly department 24 is 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 the first end 23 of the second end 23 of the first horizontal eccentric chock 4 and the second horizontal eccentric chock 13, so that this second shifting block assembly department 25 is 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, promote the second end 23 of the second horizontal eccentric chock 13 during reversing motion, thereby make upper and lower switching shifting block 12 be fully used, and simplified structure.

Shown in Figure 6, the first end 22 of the described first horizontal eccentric chock 4 with on the second end 23 and the first end 22 of the described second horizontal eccentric chock 13 with can be respectively equipped with the ejection bump contacted for the described switching shifting block 12 with corresponding on the second end 23, 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, the ejection bump is not limited to the concrete form in Fig. 6, for example, the ejection bump also can be arranged on the side, both sides of the switching shifting block 12 on described the first shifting block assembly department 24 and on the side, both sides of the switching shifting block 12 on described the second shifting block assembly department 25, with for the horizontal eccentric chock 13 of the horizontal eccentric chock 4 or the second of ejection described first.Similarly, now the 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 also is installed, its major function is, the described first and second horizontal eccentric chocks 4, 13 when 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 with 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 the various structures form, for example, in Fig. 7, each chock pretension elastic component is chock preloading spring 18, be formed with respectively the spring trepanning 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 the described second horizontal eccentric chock 13, be inserted with slidably respectively spring cover 14 in each described spring trepanning, be respectively equipped with the described chock preloading spring 18 in its pre-compressed state in each spring cover, thereby 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 respectively elastic support corresponding spring cover 14 is arranged.For another example, in Figure 10, each chock pretension elastic component is the chock preloading spring 18 that length is longer, the first horizontal eccentric chock 4 and the described second horizontal eccentric chock 13 are along on the end face of the spin axis O direction of free wheel device, being formed with respectively circular groove 19, this circular groove 19 accommodates respectively chock preloading spring 18, wherein chock preloading spring 18 1 ends on the first horizontal eccentric chock 4 are fixed in the second end 23 of this 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, chock preloading spring 18 1 ends on the second horizontal eccentric chock 13 are fixed in the second end 23 of this 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 this Figure 10 and the structural type in Fig. 7 play 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 section 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 protruded from internal layer revolving part 9 bump 9c are installed, this shifting block is installed on bump 9c and is formed with switching shifting block mounting groove, be formed with respectively the pivotable jack-post mating groove radially extended along outer revolving part 1 on the two ends end wall of this switching shifting block mounting groove, each switching shifting block 12 is arranged in corresponding switching shifting block mounting groove and passes through the pivotable jack-post 12a of section at two ends, the cooperation of 12b and corresponding described pivotable jack-post mating groove and can pivotable, and between the bottom surface of switching shifting block 12 and shifting block mounting groove, yielding support has shifting block pretension elastic component, the described pivotable jack-post 12a of section at switching shifting block 12 two ends, 12b can slide in corresponding pivotable jack-post mating groove, thereby the elastic force by shifting block pretension elastic component makes an end of switching shifting block 12 and the inner peripheral surface of outer revolving part 1 keep in touch, and be formed with opening on the both sides sidewall of switching shifting block mounting groove, so that switching shifting block 12 can form ejection with the horizontal eccentric chock 13 of the described first horizontal eccentric chock 4 or the second by corresponding opening, contact, for example the adjusting bolt in Fig. 6 17 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, thereby must switch shifting block 12 by elastic force, with the inner peripheral surface of outer revolving part 1, keeps in touch.

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 spaced apart the first axial limiting part 3 of the 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 axial limiting bump for example, 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 utility model, for example, in Fig. 8, the first and second horizontal eccentric chocks 4, 13 from the position in preliminary wedging state, when outer revolving part 1 rotates counterclockwise with respect to internal layer revolving part 9, top switching shifting block 12 and bottom switching shifting block 12 promote 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, when 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 the 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 eccentric stop auxiliary section 9b of the inner peripheral surface of this skin revolving part 1 and 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 joint Figure 13, corresponding with the mode of execution of Fig. 1 to Figure 10, the utility model 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section 1d of the outer circumferential face of described internal layer revolving part 9 and this skin revolving part, the internal surface 21 of horizontal eccentric chock is the arc surface coordinated with the outer circumferential face of described internal layer revolving part 9, outer surface 20 is the internal surface 21 out-of-alignment cambered surfaces with this horizontal eccentric chock, so that the radial thickness d of this horizontal eccentric chock circumferentially increasing from first end 22 to second ends 23 of this horizontal eccentric chock along described internal layer revolving part, and the outer surface 20 of this horizontal eccentric chock matches with the internal surface of described eccentric stop auxiliary section 9b, and be formed with the first end 22 that corresponds respectively to described horizontal eccentric chock and the shifting block assembly department of the second end 23 on described outer revolving part 1, be separately installed with the switching shifting block 12 for the described horizontal eccentric chock of ejection on each shifting block assembly department, one end of each 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 when 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, move to non-wedging state between 9, when 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 eccentric stop auxiliary section 1d of the outer circumferential face of this internal layer revolving part 9 and 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 utility model, the utility model 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section 9b of the inner peripheral surface of described outer revolving part 1 and this internal layer revolving part, the outer surface 20 of described horizontal eccentric chock is the arc surface coordinated with the inner peripheral surface of described outer revolving part 1, internal surface 21 is the outer surface 20 out-of-alignment cambered surfaces with this horizontal eccentric chock, so that the thickness d of this horizontal eccentric chock is (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 be provided with between the internal surface 21 of this horizontal eccentric chock and the outer surface of eccentric stop auxiliary section 9b 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 a plurality of rolling bearing parts 26 that circumferentially are arranged in order.

Be formed with the shifting block assembly department corresponding to the second end 23 of each described horizontal eccentric chock on described internal layer revolving part 9, be separately installed with the switching toggle mechanism for the described horizontal eccentric chock of ejection on each shifting block assembly department, the shifting block part of each described switching toggle mechanism contacts with the inner peripheral surface of described outer revolving part 1 respectively, being driven by this skin revolving part 1 by friction, thereby when 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, so that 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 the 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, when 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 outer surface of the internal surface 21 of described outer revolving part 1 and/or this horizontal eccentric chock and 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 the 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 in turn presses 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 the spin axis O with respect to described free wheel device is arranged symmetrically with, be formed with accordingly the described eccentric stop auxiliary section 9b with respect to described spin axis O symmetry on described internal layer revolving part 9, and the outer surface of the internal surface 21 of these the first and second horizontal eccentric chocks 4,13 and each described eccentric stop auxiliary section 9b is respectively the eccentric circle cambered surface of the described spin axis O of center axis deviation; And the 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 is separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department 24 is between the second end 23 of the first end 22 of the described first horizontal eccentric chock 4 and the described second horizontal eccentric chock 13, so that this first shifting block assembly department 24 is corresponding to the second end 23 of the described second horizontal eccentric chock 13; Described the second shifting block assembly department 25 is between the first end 22 of the second end 23 of the described first horizontal eccentric chock 4 and the described second horizontal eccentric chock 13, so that this second shifting block assembly department 25 is corresponding to the second end 23 of the described first horizontal eccentric chock 4.

Referring to Figure 11 and Figure 12, preferably, each described shifting block assembly department 24,25 are respectively the shifting block protruded 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 switching shifting block mounting groove, along described internal layer revolving part 9, circumferential relative both sides have respectively the first side wall 34 and the second sidewall 35 to this switching shifting block mounting groove, 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 as the switching roller 12c of described shifting block part, between the bottom surface of wherein said skewback 28 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 35 of described skewback 28 bottom surfaces; Described switching roller 12c be parallel to described outer revolving part 9 axially, between the internal surface that this switching roller 12c is arranged in described outer revolving part 1 and the inclined-plane of skewback 28 and all contact with the inclined-plane of described skewback 28 with the inner peripheral surface of this skin revolving part 1; The second end 23 of corresponding described horizontal eccentric chock is formed with opening on described the second sidewall 35, so that can extend in described switching shifting block mounting groove by this opening; 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, the 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 keeps and the contacting of the inclined-plane of the inner peripheral surface of described outer revolving part 1 and 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.Due to roller loaded spring 29, only for making switching roller 12c form a kind of preliminary Pre strained state, 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 switching roller 12c be subject to larger frictional force by relatively large elastic force, thereby promote corresponding horizontal eccentric chock and enter the wedging state, at non-wedging state, roller loaded spring 29 is mainly used in switching roller 12c is formed to a preliminary precompressed, so that switching roller 12c keeps 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 equally like this) of skewback 28 with outer revolving part inner peripheral surface.

As shown in figure 11, the second end 23 of each described horizontal eccentric chock is formed with or is provided with ejection bump 36, the described opening formed on described the second sidewall 35 is ejection bump motion opening 32, the second end 23 of described horizontal eccentric chock extend in the switching shifting block mounting groove of corresponding shifting block assembly department by described ejection bump 32 separately, promotes described horizontal eccentric chock motion so that described switching roller 12c can contact with this ejection bump 36 when described the second sidewall 35 motion being driven.Participate in Figure 12, be connected with respectively joint 33 between described the first side wall 34 and described the second sidewall 35 same end axial along described outer revolving part 1, there is interval between the bottom surface of the bottom surface of described joint 33 and described switching shifting block mounting groove, and the bottom surface of described joint 33 as described skewback 28 stop surface towards the bottom surface away from described switching shifting block mounting groove motion.

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.Through practical application, confirm, 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, be provided with horizontal eccentric chock between the eccentric stop auxiliary section 1d of the outer circumferential face of described internal layer revolving part 9 and this skin revolving part, the internal surface 21 of described horizontal eccentric chock is the arc surface coordinated with the outer circumferential face of described internal layer revolving part 9, outer surface 20 is the internal surface 21 out-of-alignment cambered surfaces with this horizontal eccentric chock, so that the thickness d of this horizontal eccentric chock circumferentially increasing from first end 22 to second ends 23 of described horizontal eccentric chock along described internal layer revolving part, and be provided with between the internal surface of the outer surface 20 of this horizontal eccentric chock and described eccentric stop auxiliary section 1d 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 a plurality of rolling bearing parts 26 that circumferentially are arranged in order, and be formed with the shifting block assembly department corresponding to the second end 23 of each described horizontal eccentric chock on described outer revolving part 1, be separately installed with the switching toggle mechanism for the described horizontal eccentric chock of ejection on each shifting block assembly department, the shifting block part of each described switching toggle mechanism 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 when 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, so that 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 the 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, when 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 internal surface of the outer surface 20 of described internal layer revolving part 9 and/or this horizontal eccentric chock and 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 the 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 in turn presses 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 the spin axis O with respect to described free wheel device is arranged symmetrically with, be formed with accordingly the described eccentric stop auxiliary section 1d with respect to described spin axis O symmetry on described outer revolving part 1, and the internal surface of the outer surface 20 of these the first and second horizontal eccentric chocks 4,13 and each described eccentric stop auxiliary section 1d is respectively the eccentric circle cambered surface of the described spin axis O of center axis deviation; And the 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 is separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department 24 is between the second end 23 of the first end 22 of the described first horizontal eccentric chock 4 and the described second horizontal eccentric chock 13, so that this first shifting block assembly department 24 is corresponding to the second end 23 of the described second horizontal eccentric chock 13; Described the second shifting block assembly department 25 is between the first end 22 of the second end 23 of the described first horizontal eccentric chock 4 and the described second horizontal eccentric chock 13, so that this second shifting block assembly department 25 is corresponding to the second end 23 of the described first horizontal eccentric chock 4.

Similarly, each described shifting block assembly department 24,25 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 switching 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 as the switching roller 12c of described shifting block part, between the bottom surface of wherein said skewback 28 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 35 of described skewback 28 bottom surfaces; Described switching roller 12c be parallel to described internal layer revolving part 1 axially, between the outer circumferential face that this switching roller 12c is arranged in described internal layer revolving part 1 and the inclined-plane of skewback 28 and all contact with the inclined-plane of described skewback 28 with the outer circumferential face of this internal layer revolving part 9; And be formed with opening on described the second sidewall 35, so that the second end 23 of corresponding described horizontal eccentric chock can extend in described switching shifting block mounting groove by this opening; 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, the 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 keeps and the contacting of the inclined-plane of the outer circumferential face of described internal layer revolving part 9 and 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, the second end 23 of each described horizontal eccentric chock is formed with or is provided with ejection bump 36, the described opening formed on described the second sidewall 35 is ejection bump motion opening 32, the second end 23 of described horizontal eccentric chock extend in the switching shifting block mounting groove of corresponding shifting block assembly department by described ejection bump 32 separately, promotes described horizontal eccentric chock motion so that described switching roller 12c can contact with this ejection bump 36 when described the second sidewall 35 motion being driven.Suitably with reference to Figure 12, be connected with respectively joint 33 between described the first side wall 34 and described the second sidewall 35 same end axial along described internal layer revolving part 9, there is interval between the bottom surface of the bottom surface of described joint 33 and described switching shifting block mounting groove, and the bottom surface of described joint 33 as described skewback 28 stop surface towards the bottom surface away from described switching shifting block mounting groove motion.

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.

By upper description, can be found out, the utility model advantage is: horizontal eccentric chock free wheel device of the present utility model is owing to scientifically having adopted horizontal eccentric chock structure, make chock when the wedging working position, all obtained good guarantee with parallel to an axis degree and the laminating degree of inside and outside revolving part, add that the 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 utility model, solved dexterously the pretension elastic force of chock and surmounted the wear problem that state brings, thereby having made the free wheel device that has been significantly higher than prior art working life of the utility model free wheel device simultaneously.

In addition, because horizontal eccentric chock overrun clutch structure of the present utility model is reasonable, it has not only reduced the technical difficulty of manufacturing processing and, to the performance requirement of equipment, has made manufacture cost be 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 utility model 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 utility model can be applied to vehicle and usings as the special-purpose free wheel device of vehicle sliding, to solve car industry vehicle sliding recent decades free wheel device, has the technological deficiency that is difficult to bear the high pulling torque load.Can predict for those skilled in the art, horizontal eccentric chock free wheel device of the present utility model will be broken through the application generating technique innovative of free wheel device in mechanical industry and promote.Horizontal eccentric chock free wheel device of the present utility model 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 preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.

It should be noted that in addition each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.

In addition, between various mode of execution of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.

Claims (29)

1. 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), be provided with horizontal eccentric chock between the eccentric stop auxiliary section (9b) of described outer revolving part (1) and this internal layer revolving part, the outer surface of described horizontal eccentric chock (20) is the arc surface coordinated with the inner peripheral surface of described outer revolving part (1), internal surface (21) is outer surface (20) the out-of-alignment cambered surface with this horizontal eccentric chock, so that the radial thickness of this horizontal eccentric chock (d) circumferentially increasing to the second end (23) from the first end (22) of this horizontal eccentric chock along described outer revolving part, and the internal surface of this horizontal eccentric chock (21) matches with the outer surface of described eccentric stop auxiliary section (9b), and

Be formed with the first end (22) that corresponds respectively to described horizontal eccentric chock and the shifting block assembly department of the second end (23) on described internal layer revolving part (9), be separately installed with the switching shifting block (12) for the described horizontal eccentric chock of ejection on each shifting block assembly department, one end of each 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, when thereby at the first end (22) of described horizontal eccentric chock, corresponding switching shifting block promotes this horizontal eccentric chock, described horizontal eccentric chock is at described skin and internal layer revolving part (1,9) move to non-wedging state between, when at second end (23) of described horizontal eccentric chock, corresponding switching shifting block 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 eccentric stop auxiliary section (9b) of the inner peripheral surface of this skin revolving part (1) and 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, be formed with accordingly the described eccentric stop auxiliary section (9b) symmetrical with respect to described spin axis (O) on described internal layer revolving part (9), and this first and second horizontal eccentric chock (4, the outer surface of internal surface 13) (21) and each described eccentric stop auxiliary section (9b) is respectively the eccentric circle cambered surface of the described spin axis of center axis deviation (O), 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 is separately installed with described switching shifting block (12), wherein said the first shifting block assembly department (24) is positioned between second end (23) of the first end (22) of the described first horizontal eccentric chock (4) and the described second horizontal eccentric chock (13), so that this first shifting block assembly department (24) is simultaneously corresponding to the first end (22) of the described first horizontal eccentric chock (4) and second end (23) of the described second horizontal eccentric chock (13), described the second shifting block assembly department (25) is positioned between the first end (23) of second end (23) of the described first horizontal eccentric chock (4) and the described second horizontal eccentric chock (13), so that this second shifting block assembly department (25) is simultaneously corresponding to the first end (22) of the described first horizontal eccentric chock (4) and second end (23) of the described second horizontal eccentric chock (13).

3. horizontal eccentric chock free wheel device according to claim 2, wherein, the first end (22) of upper and the described second horizontal eccentric chock (13) of the first end (22) of the described first horizontal eccentric chock (4) and the second end (23) be respectively equipped with the ejection bump contacted for the described switching shifting block (12) with corresponding on the second end (23); Perhaps

Be respectively equipped with the ejection bump for the horizontal eccentric chock of ejection described first (4) or the second horizontal eccentric chock (13) on the side, both sides of the switching shifting block (12) on described the first shifting block assembly department (24) and on the side, both sides of the switching shifting block (12) on described the second shifting block assembly department (25).

4. horizontal eccentric chock free wheel device according to claim 3, wherein, each described ejection bump is for regulating the adjusting bolt (17) of protruding length by screw-thread fit.

5. horizontal eccentric chock free wheel device according to claim 2, wherein, between the described 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 the described 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 the described first and second horizontal eccentric chocks (4,13) when 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, each described chock pretension elastic component is chock preloading spring (18), be formed with respectively the spring trepanning on the end face of second end (23) of the described first horizontal eccentric chock (4) and on the end face of second end (23) of the described second horizontal eccentric chock (13), be inserted with slidably respectively spring cover (14) in each described spring trepanning, be respectively equipped with the described chock preloading spring (18) in its pre-compressed state in each described spring cover, thereby between second end (23) of the described first horizontal eccentric chock (4) and described the second shifting block assembly department (25) and between second end (23) of the described second horizontal eccentric chock (13) and described the first shifting block assembly department (24) respectively elastic support corresponding described spring cover (14) is arranged.

7. according to the described horizontal eccentric chock free wheel device of 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 section (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 protruded from described internal layer revolving part (9) bump (9c) are installed, this shifting block is installed on bump (9c) and is formed with switching shifting block mounting groove, be formed with respectively the pivotable jack-post mating groove radially extended along described outer revolving part (1) on the two ends end wall of this switching shifting block mounting groove, described switching shifting block (12) is arranged in described switching shifting block mounting groove and passes through the described pivotable jack-post (12a of section at two ends, 12b) with the cooperation of corresponding described pivotable jack-post mating groove and can pivotable, and between the bottom surface of described switching shifting block (12) and described shifting block mounting groove, yielding support has shifting block pretension elastic component, the described pivotable jack-post (12a of section at described switching shifting block (12) two ends, 12b) can in the described pivotable jack-post mating groove of correspondence, slide, thereby the elastic force by described shifting block pretension elastic component makes described switching shifting block (12) and the inner peripheral surface of described outer revolving part (1) keep in touch, and

Be formed with opening on the both sides sidewall of described switching shifting block mounting groove, contact so that described switching shifting block (12) can form ejection with the described 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, thereby obtain described switching shifting block (12) by elastic force, with the inner peripheral surface of described outer revolving part (1), keeps in touch.

10. horizontal eccentric chock free wheel device according to claim 7, wherein, described internal layer revolving part (9) is upper along spaced apart the first axial limiting part (3) of the spin axis of described free wheel device and the second axial limiting part (5), and the described 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 device, comprise outer and internal layer revolving part (1,9), wherein,

Described internal layer revolving part (9) comprises eccentric stop auxiliary section (9b), be provided with horizontal eccentric chock between the eccentric stop auxiliary section (9b) of the inner peripheral surface of described outer revolving part (1) and this internal layer revolving part, the outer surface of described horizontal eccentric chock (20) is the arc surface coordinated with the inner peripheral surface of described outer revolving part (1), internal surface (21) is outer surface (20) the out-of-alignment cambered surface with this horizontal eccentric chock, so that the thickness of this horizontal eccentric chock (d) circumferentially increasing to the second end (23) from the first end (22) of this horizontal eccentric chock along described outer revolving part, and be provided with between the outer surface of the internal surface of this horizontal eccentric chock (21) and eccentric stop auxiliary section (9b) 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 a plurality of rolling bearing parts (26) that circumferentially are arranged in order, and

Be formed with the shifting block assembly department corresponding to second end (23) of each described horizontal eccentric chock on described internal layer revolving part (9), be separately installed with the switching toggle mechanism for the described horizontal eccentric chock of ejection on each shifting block assembly department, the shifting block part of each described switching toggle mechanism contacts with the inner peripheral surface of described outer revolving part (1) respectively, being driven by this skin revolving part (1) by friction, when thereby at second end (23) of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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, so that 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 the 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 when at second end (23) of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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 outer surface of the internal surface (21) of described outer revolving part (1) and/or this horizontal eccentric chock and described eccentric stop auxiliary section (9b).

12. horizontal eccentric chock free wheel device according to claim 11, wherein, described rolling bearing part (26) is the roller bearing part.

13. horizontal eccentric chock free wheel device 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) in turn presses against on the bearing member blocked part (9d) of described internal layer revolving part (9).

14. horizontal eccentric chock free wheel device 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, be formed with accordingly the described eccentric stop auxiliary section (9b) symmetrical with respect to described spin axis (O) on described internal layer revolving part (9), and this first and second horizontal eccentric chock (4, the outer surface of internal surface 13) (21) and each described eccentric stop auxiliary section (9b) is respectively the eccentric circle cambered surface of the described spin axis of center axis deviation (O), 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 is separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department (24) is positioned between second end (23) of the first end (22) of the described first horizontal eccentric chock (4) and the described second horizontal eccentric chock (13), so that this first shifting block assembly department (24) is corresponding to second end (23) of the described second horizontal eccentric chock (13); Described the second shifting block assembly department (25) is positioned between the first end (22) of second end (23) of the described first horizontal eccentric chock (4) and the described second horizontal eccentric chock (13), so that this second shifting block assembly department (25) is corresponding to second end (23) of the described first horizontal eccentric chock (4).

15. according to claim 11 to the described horizontal eccentric chock free wheel device of any one in 14, wherein,

Each described shifting block assembly department (24,25) be respectively the shifting block protruded 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 switching shifting block mounting groove, along described internal layer revolving part (9), circumferential relative both sides have respectively the first side wall (34) and the second sidewall (35) to this switching shifting block mounting groove, 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 as the switching roller (12c) of described shifting block part, between the bottom surface of wherein said skewback (28) 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 (35) of described skewback (28) bottom surface; Described switching roller (12c) be parallel to described outer revolving part (9) axially, between the internal surface that this switching roller (12c) is arranged in described outer revolving part (1) and the inclined-plane of skewback (28) and all contact with the inclined-plane of described skewback (28) with the inner peripheral surface of this skin revolving part (1); And

Second end (23) of corresponding described horizontal eccentric chock is formed with opening on described the second sidewall (35), so that can extend in described switching shifting block mounting groove by this opening; 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 equipped with the 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) keeps and the contacting of the inclined-plane of the inner peripheral surface of described outer revolving part (1) and described skewback (28) under non-wedging state.

16. horizontal eccentric chock free wheel device 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 device according to claim 15, wherein, second end (23) of each described horizontal eccentric chock is formed with or is provided with ejection bump (36), the upper described opening formed of described the second sidewall (35) is ejection bump motion opening (32), second end (23) of described horizontal eccentric chock extend in the switching shifting block mounting groove of corresponding shifting block assembly department by described ejection bump (32) separately, so that can contacting with this ejection bump (36) when described the second sidewall (35) moves being driven, described switching roller (12c) promotes described horizontal eccentric chock motion.

18. horizontal eccentric chock free wheel device according to claim 15, wherein, be connected with respectively joint (33) between described the first side wall (34) and described the second sidewall (35) the same end axial along described outer revolving part (1), there is interval between the bottom surface of the bottom surface of described joint (33) and described switching shifting block mounting groove, and the bottom surface of described joint (33) as described skewback (28) stop surface towards the bottom surface away from described switching shifting block mounting groove motion.

19. horizontal eccentric chock free wheel device 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 device, comprise outer and internal layer revolving part (1,9), wherein,

Described outer revolving part (1) comprises eccentric stop auxiliary section (1d), be provided with horizontal eccentric chock between the eccentric stop auxiliary section (1d) of the outer circumferential face of described internal layer revolving part (9) and this skin revolving part, the internal surface of described horizontal eccentric chock (21) is the arc surface coordinated with the outer circumferential face of described internal layer revolving part (9), outer surface (20) is internal surface (21) the out-of-alignment cambered surface with this horizontal eccentric chock, so that the thickness of this horizontal eccentric chock (d) circumferentially increasing to the second end (23) from the first end (22) of described horizontal eccentric chock along described internal layer revolving part, and be provided with between the internal surface of the outer surface of this horizontal eccentric chock (20) and described eccentric stop auxiliary section (1d) 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 a plurality of rolling bearing parts (26) that circumferentially are arranged in order, and

Be formed with the shifting block assembly department corresponding to second end (23) of each described horizontal eccentric chock on described outer revolving part (1), be separately installed with the switching toggle mechanism for the described horizontal eccentric chock of ejection on each shifting block assembly department, the shifting block part of each described switching toggle mechanism 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, when thereby at second end (23) of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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, so that 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 the 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 when at second end (23) of described horizontal eccentric chock, the shifting block part of corresponding described switching toggle mechanism 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 internal surface of the outer surface (20) of described internal layer revolving part (9) and/or this horizontal eccentric chock and described eccentric stop auxiliary section (1d).

21. horizontal eccentric chock free wheel device according to claim 20, wherein, described rolling bearing part (26) is the roller bearing part.

22. horizontal eccentric chock free wheel device 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) in turn presses against on the bearing member blocked part (9d) of described outer revolving part (1).

23. horizontal eccentric chock free wheel device 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, be formed with accordingly the described eccentric stop auxiliary section (1d) symmetrical with respect to described spin axis (O) on described outer revolving part (1), and this first and second horizontal eccentric chock (4, the internal surface of outer surface 13) (20) and each described eccentric stop auxiliary section (1d) is respectively the eccentric circle cambered surface of the described spin axis of center axis deviation (O), 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 is separately installed with described switching toggle mechanism, wherein said the first shifting block assembly department (24) is positioned between second end (23) of the first end (22) of the described first horizontal eccentric chock (4) and the described second horizontal eccentric chock (13), so that this first shifting block assembly department (24) is corresponding to second end (23) of the described second horizontal eccentric chock (13); Described the second shifting block assembly department (25) is positioned between the first end (22) of second end (23) of the described first horizontal eccentric chock (4) and the described second horizontal eccentric chock (13), so that this second shifting block assembly department (25) is corresponding to second end (23) of the described first horizontal eccentric chock (4).

24. according to the described horizontal eccentric chock free wheel device of any one in claim 20 to 23, wherein,

Each described shifting block assembly department (24,25) shifting block be 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 switching shifting block mounting groove, along described outer revolving part (1), circumferential relative both sides have respectively the first side wall (34) and the second sidewall (35) to this switching shifting block mounting groove, 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 as the switching roller (12c) of described shifting block part, between the bottom surface of wherein said skewback (28) 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 (35) of described skewback (28) bottom surface; Described switching roller (12c) be parallel to described internal layer revolving part (1) axially, between the outer circumferential face that this switching roller (12c) is arranged in described internal layer revolving part (1) and the inclined-plane of skewback (28) and all contact with the inclined-plane of described skewback (28) with the outer circumferential face of this internal layer revolving part (9); And

Second end (23) of corresponding described horizontal eccentric chock is formed with opening on described the second sidewall (35), so that can extend in described switching shifting block mounting groove by this opening; 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 equipped with the 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) keeps and the contacting of the inclined-plane of the outer circumferential face of described internal layer revolving part (9) and described skewback (28) under non-wedging state.

25. horizontal eccentric chock free wheel device 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 device according to claim 24, wherein, second end (23) of each described horizontal eccentric chock is formed with or is provided with ejection bump (36), the upper described opening formed of described the second sidewall (35) is ejection bump motion opening (32), second end (23) of described horizontal eccentric chock extend in the switching shifting block mounting groove of corresponding shifting block assembly department by described ejection bump (32) separately, so that can contacting with this ejection bump (36) when described the second sidewall (35) moves being driven, described switching roller (12c) promotes described horizontal eccentric chock motion.

27. horizontal eccentric chock free wheel device according to claim 24, wherein, be connected with respectively joint (33) between described the first side wall (34) and described the second sidewall (35) the same end axial along described internal layer revolving part (9), there is interval between the bottom surface of the bottom surface of described joint (33) and described switching shifting block mounting groove, and the bottom surface of described joint (33) as described skewback (28) stop surface towards the bottom surface away from described switching shifting block mounting groove motion.

28. horizontal eccentric chock free wheel device 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 device, comprise outer and internal layer revolving part (1,9), wherein,

Described outer revolving part (1) comprises eccentric stop auxiliary section (1d), be provided with horizontal eccentric chock between the eccentric stop auxiliary section (1d) of the outer circumferential face of described internal layer revolving part (9) and this skin revolving part, the internal surface of described horizontal eccentric chock (21) is the arc surface coordinated with the outer circumferential face of described internal layer revolving part (9), outer surface (20) is internal surface (21) the out-of-alignment cambered surface with this horizontal eccentric chock, so that the radial thickness of this horizontal eccentric chock (d) circumferentially increasing to the second end (23) from the first end (22) of this horizontal eccentric chock along described internal layer revolving part, and the outer surface of this horizontal eccentric chock (20) matches with the internal surface of described eccentric stop auxiliary section (9b), and

Be formed with the first end (22) that corresponds respectively to described horizontal eccentric chock and the shifting block assembly department of the second end (23) on described outer revolving part (1), be separately installed with the switching shifting block (12) for the described horizontal eccentric chock of ejection on each shifting block assembly department, one end of each 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, when thereby at the first end (22) of described horizontal eccentric chock, corresponding switching shifting block promotes this horizontal eccentric chock, described horizontal eccentric chock is at described skin and internal layer revolving part (1,9) move to non-wedging state between, when at second end (23) of described horizontal eccentric chock, corresponding switching shifting block 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 eccentric stop auxiliary section (1d) of the outer circumferential face of this internal layer revolving part (9) and described outer revolving part along described internal layer revolving part (9).

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