CN109882586A - Pneumatic shifting device - Google Patents

Abstract

The present invention provides a kind of Pneumatic shifting devices, it is related to technical field of automobile parts, Pneumatic shifting device includes Pneumatic shift bar, output shaft, shift rotor and driven gear, Pneumatic shift bar is equipped at intervals with multiple annular grooves along its length, multiple annular grooves pass through air supply channel respectively and are connected to Pneumatic propelling plant, output sleeve is located on Pneumatic shift bar, and the inner wall of each annular groove and output shaft forms closed gas chamber, and multiple through-holes in every group are corresponded with multiple shift slots respectively；Shift rotor is rotatably installed in shift slot, and shift slot is connected to adjacent two through-holes in shift slot respectively in the closed cavity that shift rotor two sides are formed；Driven gear inner surface is circumferentially with card slot identical with shift rotor quantity, and the part that multiple shift rotors protrude from except shift slot can be caught in card slot.It is accurate to alleviate automatic gear-box processing technology in the prior art, the low technical problem of the automatic gear-box yield rate produced.

Description

Pneumatic shifting device

Technical field

The present invention relates to technical field of automobile parts, in particular to a kind of Pneumatic shifting device.

Background technique

The principle of gearbox is: each gear has different drive ratios, and being equivalent to pinion gear can produce with engaging for gear wheel Raw different revolving speed, with underneath drive ratio (3 gears and following) when running at a low speed, big axis revolving speed is lower than engine speed, according to formula P =FV, can get bigger driving force, and with high transmission ratio (4 gears or more) when high speed, big axis revolving speed is higher than engine speed, drop Low tractive force obtains higher speed, cuts gear and the gear of various sizes of gear and big axis is selected to engage.In the prior art, certainly Dynamic gearbox is very mature, and is widely used in light-duty vehicle.Automatic gear-box processing technology in the prior art is complicated, Be limited to process aspect factor, the automatic gear-box enterprise of production of having the ability domestic at present is less, the quality level of production also with state There are larger gaps for outer enterprise of good standing.

Summary of the invention

The purpose of the present invention is to provide a kind of Pneumatic shifting devices, to alleviate automatic gear-box processing in the prior art Complex process, the low technical problem of the automatic gear-box yield rate produced.

The present invention provides a kind of Pneumatic shifting device, comprising:

Pneumatic shift bar, the Pneumatic shift bar are equipped at intervals with multiple annular grooves, the Pneumatic shift along its length Bar is equipped with the air supply channel for being connected to each annular groove with Pneumatic propelling plant respectively；

Output shaft, the output sleeve are located on the Pneumatic shift bar, and the output shaft is spaced sets along its length Have a multiple groups through-hole, the quantity at least two of through-hole described in every group and be circumferentially arranged along the output shaft, through-hole described in multiple groups with Multiple annular grooves correspond, and the output shaft outer surface is equipped with identical and one-to-one as number of openings described in every group Shift slot, the shift slot are connected to by through-hole described in multiple groups with multiple annular grooves；

Shift rotor, the shift rotor can be rotatably arranged in the shift slot, and the shift slot is in the shift The two sides of rotor form closed cavity, and two through-holes adjacent in the shift slot connect two cavitys respectively Logical, multiple shift rotors can be hidden in shift slot by rotating in the shift slot or partially be protruded from described Except shift slot；

And driven gear, the driven gear are set in the driven gear on the output shaft, in the driven gear Surface is circumferentially with card slot identical with the shift rotor quantity, and multiple shift rotors protrude from except the shift slot Part can be caught in the card slot, to complete the circumferentially fixed of the driven gear and the output shaft.

Further, the quantity of the air supply channel is even number, and the extraneous opening of multiple air supply channel connections is all provided with It sets in the same end face of the Pneumatic shift bar.

Further, the output shaft includes shaft and the driven wheel that is set in the shaft, the driven wheel key It is connected in the shaft, the shift slot is arranged on the driven wheel.

Further, the shift slot on the driven wheel corresponds to through-hole described in two adjacent groups.

Further, the bottom surface of the shift slot is the first cambered surface, and the shift rotor is towards the one of first cambered surface Face is the second cambered surface, and the axis of the axis of first cambered surface, the axis of second cambered surface and the driven wheel is parallel to each other Setting, the shift rotor second cambered surface set there are two air drain closed at one end, the top opening of two air drains Two through-holes are respectively communicated with, two the open-ended of the air drain are respectively communicated with two cavitys.

Further, the two sides of the shift slot are respectively equipped with the third cambered surface an of coaxial line, the third cambered surface Axis and second cambered surface axis it is arranged in parallel, the shift rotor includes the rotation section of cylinder type, described Rotation section is plugged between two third cambered surfaces.

It further, further include speed regulating motor, the speed regulating motor and input shaft are drivingly connected.

Further, the part shift rotor is protruded from institute by rotating clockwise by least one described shift rotor It states outside shift slot, the part shift rotor is protruded from the shift by rotating counterclockwise by least one described shift rotor Outside slot.

Further, the quantity of through-hole described in every group is four and is circumferentially uniformly arranged along the output shaft, described in two Shift rotor is protruded from the part shift rotor outside the shift slot by rotating clockwise.

The present invention also provides another Pneumatic shifting devices, comprising:

Pneumatic shift bar, the Pneumatic shift bar are equipped at intervals with multiple annular grooves, the Pneumatic shift along its length Bar is equipped with the air supply channel for being connected to each annular groove with Pneumatic propelling plant respectively；

Output shaft, the output sleeve are located on the Pneumatic shift bar, and the output shaft is spaced sets along its length Have a multiple groups through-hole, the quantity at least two of through-hole described in every group and be circumferentially arranged along the output shaft, through-hole described in multiple groups with Multiple annular grooves correspond, and the output shaft outer surface is equipped with identical and one-to-one as number of openings described in every group Shift slot, the shift slot are connected to by through-hole described in multiple groups with multiple annular grooves；

Shift rotor, the shift rotor can be rotatably arranged in the shift slot, and the shift slot is in the shift The two sides of rotor are respectively formed closed first cavity and the second cavity, an institute in first cavity and the shift slot Through-hole connection is stated, multiple shift rotors can be hidden in by rotating in the shift slot in shift slot or part is convex Except the shift slot；

Elastic parts, the elastic parts are mounted on side wall of in the second cavity and both ends respectively with the shift slot It is abutted with the shift rotor, the elastic parts can drive the shift slot to rotate and be hidden in the shift slot；

And driven gear, the driven gear are set on the output shaft, the driven gear inner surface is circumferentially set There is card slot identical with the shift rotor quantity, the part that multiple shift rotors protrude from except the shift slot can It is caught in the card slot, to complete the circumferentially fixed of the driven gear and the output shaft.

Compared with the existing technology, two kinds of Pneumatic shifting devices provided by the invention have the beneficial effect that:

Pneumatic shifting device provided by the invention, including Pneumatic shift bar, output shaft, shift rotor and driven gear, Wherein, Pneumatic shift bar is equipped at intervals with multiple annular grooves along its length, and multiple annular grooves pass through air supply channel and gas respectively The connection of pressure power device.Output sleeve is located on Pneumatic shift bar, at this point, the inner wall of each annular groove and output shaft is formed relatively Closed gas chamber, the multiple groups through-hole being equipped at intervals on output shaft along its length respectively corresponds multiple gas chambers, since gas chamber is Ring-shaped air chamber can also guarantee being connected to for through-hole and gas chamber even if Pneumatic shift bar is rotated relative to output shaft；It is multiple in every group Through-hole is corresponded with multiple shift slots of output shaft outer surface respectively, to connect while completing a gas chamber with multiple shift slots It is logical.

Shift rotor is rotatably mounted in shift slot, the closed cavity point that shift slot is formed in shift rotor two sides Two through-holes adjacent in shift slot are not connected to, at this point, respective cavities body can be completed by the gas supply of one of through-hole Long-pending increase, and then rotation of the shift rotor in shift slot is completed, shift rotor is able to be hidden in shift slot or part is convex Outside for shift slot.Driven gear is set on output shaft, and the card slot of its inner surface is identical as shift rotor quantity, protrudes from The outer portion shift rotor of shift slot can be inserted card slot, complete the circumferentially fixed of driven gear and output shaft.

Specifically, when put into gear operate when, inflated by Pneumatic propelling plant into corresponding air supply channel, gas Successively by corresponding gas chamber and through-hole and into the cavity in corresponding shift slot, which, which becomes larger, makes rotor of shifting gears It rotates and partially protrudes from except shift slot, when the card slot of the driven gear wait dally corresponds to shift slot, shift rotor is caught in card Slot completes circumferentially fixed, the operation completion of putting into gear of the corresponding gear of driven gear of driven gear and output shaft.Similarly, when being moved back Gear operation when, inflated by Pneumatic propelling plant into adjacent another air supply channel, make shift gears slot in another cavity volume by Gradual change is big, completes the opposite direction rotation of shift rotor, shift rotor can whole retractions shift gears slots, the corresponding gear of driven gear moves back Gear operation is completed.

In aforesaid operations, the air-tightness of strict control gas chamber and cavity is not needed, is supplied in Pneumatic propelling plant duration In the case where, it can guarantee that shift rotor is constantly in and be hidden in shift slot or in the state for partially protruding from shift slot, be somebody's turn to do The processing technology requirement for reducing gearshift, output shaft and rotor of shifting gears is set, thereby reduces difficulty of processing, produces Automatic gear-box yield rate it is higher.

Another kind Pneumatic shifting device provided by the invention is carrying out operation of putting into gear compared with above-mentioned Pneumatic shifting device When, Pneumatic propelling plant equally passes through air supply channel, gas chamber and through-hole and supplies to the first cavity, and the first cavity volume gradually increases Greatly, that is, rotation of the shift rotor in shift slot is completed, shift rotor is able to part and protrudes from outside shift slot, and shift rotor is caught in Card slot completes the circumferentially fixed of driven gear and output shaft.Unlike above-mentioned Pneumatic shifting device, operation of putting into gear is being carried out When, the second cavity volume reduces, and elastic parts is pressurized, when carrying out moving back gear operation, it is only necessary to cancel the gas supply to the first cavity, Shift rotor rotation can be driven in the screen resilience of elastic parts, hides shift rotor to shift slot, the corresponding gear of driven gear Move back gear operation complete.

Pneumatic shifting device provided by the invention replaces Pneumatic propelling plant completion to move back gear operation, moves back by elastic parts Gear operation is more stable accurate, reduces Pneumatic propelling plant failure and causes to move back the hidden danger for keeping off operation failure, in addition, of the invention The other technologies advantage of the Pneumatic shifting device of offer is identical as the technical advantage of above-mentioned Pneumatic shifting device, no longer superfluous herein It states.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the overlooking structure diagram of Pneumatic shift bar in Pneumatic shifting device provided in an embodiment of the present invention；

Fig. 2 is the right side structural representation of Pneumatic shift bar in Pneumatic shifting device provided in an embodiment of the present invention；

Fig. 3 is the overlooking structure diagram of shaft in Pneumatic shifting device provided in an embodiment of the present invention；

Fig. 4 is the overlooking structure diagram of driven wheel in Pneumatic shifting device provided in an embodiment of the present invention；

Fig. 5 is the overlooking structure diagram of shift rotor in Pneumatic shifting device provided in an embodiment of the present invention；

Fig. 6 is the structural schematic diagram of shift rotor and driven gear in Pneumatic shifting device provided in an embodiment of the present invention.

Icon: 100- Pneumatic shift bar；200- shaft；300- driven wheel；400- shift rotor；500- driven tooth Wheel；

110- annular groove；120- air supply channel；

210- through-hole；

310- shift slot；

The first cambered surface of 311-；312- third cambered surface；

410- air drain；The second cambered surface of 420-；The rotation section 430-；

510- card slot.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

- Fig. 6 referring to Fig.1, Pneumatic shifting device provided in this embodiment, including Pneumatic shift bar 100, output shaft, shift Rotor 400 and driven gear 500, wherein Pneumatic shift bar 100 is equipped at intervals with multiple annular grooves 110 along its length, more A annular groove 110 is connected to by air supply channel 120 with Pneumatic propelling plant respectively.Output sleeve is located on Pneumatic shift bar 100, At this point, the inner wall of each annular groove 110 and output shaft forms the gas chamber of relative closure, it is spaced and sets along its length on output shaft Some multiple groups through-holes 210 respectively correspond multiple gas chambers, since gas chamber is ring-shaped air chamber, export even if Pneumatic shift bar 100 is opposite Axis rotation, can also guarantee being connected to for through-hole 210 and gas chamber；Multiple through-holes 210 in every group respectively with output shaft outer surface Multiple shift slots 310 correspond, to be connected to while completing a gas chamber with multiple shift slot 310.

Shift rotor 400 is rotatably mounted in shift slot 310, and shift slot 310 is formed in shift 400 two sides of rotor Closed cavity is connected to adjacent two through-holes 210 in shift slot 310 respectively, at this point, passing through the confession of one of through-hole 210 The increase of respective cavities volume can be completed in gas, and then completes rotation of the shift rotor 400 in shift slot 310, rotor of shifting gears 400, which are able to be hidden in shift slot 310 or part, protrudes from outside shift slot 310.Driven gear 500 is set on output shaft, and The card slot 510 of its inner surface is identical as shift 400 quantity of rotor, and the outer portion shift rotor 400 for protruding from shift slot 310 can be with It is inserted into card slot 510, completes the circumferentially fixed of driven gear 500 and output shaft.

Specifically, when put into gear operate when, inflated by Pneumatic propelling plant into corresponding air supply channel 120, Gas successively by corresponding gas chamber and through-hole 210 and enters the cavity in corresponding shift slot 310, which becomes larger Make the rotation of shift rotor 400 and part protrudes from except shift slot 310, the correspondence of card slot 510 of driven gear 500 to be dallied is changed When retaining groove 310, shift rotor 400 is caught in card slot 510, completes circumferentially fixed, the driven gear of driven gear 500 and output shaft The operation of putting into gear of 500 corresponding gears is completed.Similarly, when move back gear operation, by Pneumatic propelling plant to adjacent another confession Inflation in gas channel 120 becomes larger another cavity volume in shift slot 310, and the opposite direction for completing shift rotor 400 turns It is dynamic, shift rotor 400 can whole retractions shift gears slots 310, the gear operation of moving back of the corresponding gear of driven gear 500 is completed.

In aforesaid operations, the air-tightness of strict control gas chamber and cavity is not needed, is supplied in Pneumatic propelling plant duration In the case where, can guarantee shift gears rotor 400 be constantly in be hidden in shift slot 310 or in partially protrude from shift slot 310 State, this arrangement reduces gearshift, output shaft and shift gears rotor 400 processing technology requirement, thereby reduce plus Work difficulty, the automatic gear-box yield rate produced are higher.

Be worth explanation, in the present embodiment, shift rotor 400 can using the axis parallel with output shaft axis as axis into Row rotation, to complete the clamping of itself and the card slot 510 of driven gear 500；Alternatively, shift rotor 400 can also with output shaft Axis is that axis is rotated at angle even axis at right angle, can equally complete itself and the card slot 510 of driven gear 500 Clamping.

Specifically, the present embodiment is preferably turned using the axis parallel with output shaft axis as axis using shifting gears rotor 400 It is described in detail below to be done to the specific structure of Pneumatic shifting device on the basis of dynamic.

Firstly, referring to Figures 1 and 2, in the present embodiment, the quantity of air supply channel 120 is even number, multiple air supply channels 120 The extraneous opening of connection is arranged at the same end face of Pneumatic shift bar 100.

Specifically, the present embodiment, with the corresponding gear of two neighboring annular groove 110, gearbox has several gears, air supply channel 120 Quantity is then twice of gear number, at this point, Pneumatic shift bar 100 is arranged in by the way that air supply channel 120 is connected to extraneous opening Same end face facilitates Pneumatic propelling plant and connect respectively with multiple air supply channels 120, completes to each air supply channel 120 Individually gas supply.

Preferably, the present embodiment be arranged multiple air supply channels 120 opening it is circumferentially uniform along the end face of Pneumatic shift bar 100 Arrangement.

Referring to Fig. 3 and Fig. 4, in the present embodiment, output shaft includes shaft 200 and the driven wheel that is set in shaft 200 300, driven wheel 300 is keyed in shaft 200, and shift slot 310 is arranged on driven wheel 300.

After processing is completed to the shift slot 310 on driven wheel 300, it then is keyed in shaft 200, shaft can be completed 200 and driven wheel 300 it is circumferentially fixed, this arrangement reduces the difficulty of processing of shift slot 310, improve output shaft it is whole plus Work efficiency rate.

Specifically, the first keyway can be equipped in 200 outer surface of shaft, it is equipped with the second keyway in 300 inner surface of driven wheel, When shaft 200 is inserted into driven wheel 300 and makes the first keyway and opposite the second keyway, the first keyway and the second keyway are inserted a key into It is interior, complete the circumferentially fixed of driven wheel 300 and shaft 200.At this time multiple shift slots 310 on driven wheel 300 respectively with shaft Multiple through-holes 210 on 200 are connected.

Alternatively, external splines can also be equipped in shaft 200, internal spline, external splines and interior flower are equipped on driven wheel 300 The cooperation of key, it is same to complete the circumferentially fixed of driven wheel 300 and shaft 200.

Again alternatively, shaft 200 and driven wheel 300 can also be integrally formed setting.

In the present embodiment, the shift slot 310 on driven wheel 300 corresponds to two adjacent groups through-hole 210, i.e., each shift slot 310 Corresponding two through-holes 210 being disposed adjacent, the corresponding driven gear 500 of each driven wheel 300, the quantity etc. of driven wheel 300 In the gear number of gearbox.This arrangement reduces the length of driven wheel 300, further reduced the difficulty of processing of driven wheel 300, mention High processing efficiency.

It is worth explanation, in above-mentioned setting, the length of shift rotor 400 is less than the length of shift slot 310, rotor of shifting gears After 400 are mounted in shift slot 310, it is also necessary to the both ends open of closing shift slot 310, to complete the closing of two cavitys.

Referring to Fig. 4 and Fig. 5, in the present embodiment, the bottom surface of shift slot 310 is the first cambered surface 311,400 direction of rotor of shifting gears The one side of first cambered surface 311 is the second cambered surface 420, the axis and driven wheel 300 of the axis of the first cambered surface 311, the second cambered surface 420 Axis it is arranged in parallel, shift rotor 400 is set in the second cambered surface 420 there are two air drain 410 closed at one end, two air drains 410 top opening is respectively communicated with two through-holes 210, and two the open-ended of air drain 410 are respectively communicated with two cavitys.

Specifically, the first cambered surface 311 and 420 moment of the second cambered surface are bonded to each other contact, it ensure that shift 400 two sides of rotor Cavity closing, avoid the gap for having connection between two cavitys and the rotation for the rotor 400 that influences to shift gears.By the way that air drain is arranged 410, when guaranteeing that shift rotor 400 rotates in slot 310 of shifting gears, opening moment and air drain of the through-hole 210 in the first cambered surface 311 410 top opening docking, and then guarantee the connection of through-hole 210 and cavity.

Please continue to refer to Fig. 4 and Fig. 5, in the present embodiment, the two sides of shift slot 310 are respectively equipped with the of a coaxial line Three cambered surfaces 312, the axis of third cambered surface 312 and the axis of the second cambered surface 420 are arranged in parallel, and shift rotor 400 includes circle The rotation section 430 of cylinder-type, rotation section 430 are plugged between two third cambered surfaces 312.

Specifically, the radius of rotation section 430 is substantially equal to the radius of curvature of third cambered surface 312, rotation section 430 is plugged in two When between a third cambered surface 312, the closing of two cavitys is further ensured, improves the rotation sensitivity of shift rotor 400.

In the present embodiment, Pneumatic shifting device can also include speed regulating motor, and speed regulating motor and input shaft are drivingly connected.

In gear shift operation, after the separation that engine and gearbox are completed by clutch, the adjustable input of speed regulating motor The revolving speed of axis, so that the close even equal to driven wheel 300 of the rotation of driven gear 500 engaged with the driving gear on input shaft Revolving speed, at this point, card slot 510 on driven gear 500 and slot 310 of shifting gears on driven wheel 300 are open, the time to cross is longer, from changing The shift rotor 400 that retaining groove 310 protrudes more is easily plugged into card slot 510, completes the week of driven gear 500 and driven wheel 300 To fixation.The setting plays the role of keeping off clearly, also reduce when shift rotor 400 is caught in card slot 510 with 510 side wall of card slot Impact strength reduces noise, also reduces the loss of shift rotor 400 and driven gear 500, and improve the two uses the longevity Life.

Be worth explanation, referring to Fig. 6, in the present embodiment, in driven gear 500 and circumferentially fixed driven wheel 300, be from Moving gear 500 compresses the protrusion part of shift rotor 400 in rotation with the one side wall of card slot 510, prevents shift 400 phase of rotor 500 opposite direction of driven gear is rotated, shift 400 moment of rotor is in protrusion shift 310 state of slot.Based on this, the present embodiment In, at least one shift rotor 400 is protruded from part shift rotor 400 outside shift slot 310 by rotating clockwise, and at least one A shift rotor 400 is protruded from part shift rotor 400 outside shift slot 310 by rotating counterclockwise.The setting guarantees to hang After gear, there is shift rotor 400 to complete driven gear 500 with respect to clockwise relatively fixed (such as input shaft of driven wheel 300 Drive output shaft rotation), also there is shift rotor 400 to complete driven gear 500 anticlockwise relatively solid with respect to driven wheel 300 Fixed (such as output shaft band driven input shaft rotates).

According to above-mentioned setting, gear (such as moving back a gear) signal is moved back even if giving, is greater than driven wheel in 500 revolving speed of driven gear When 300 revolving speed (when input shaft drives output shaft rotation), the shift rotor 400 that output shaft is rotated with driven input shaft is only completed Retraction shift slot 310 completes input shaft and drives the meeting moment of shift rotor 400 of output shaft rotation in protrusion shift 310 shape of slot State.When only 500 revolving speed of driven gear is less than 300 revolving speed of driven wheel, the part of the shift protrusion shift slot 310 of rotor 400 has Mobile gap, can just make 400 retraction of rotor shift slot 310 of shifting gears, and gear operation is moved back in completion.The setting, which realizes, moves back gear in work, When for double clutch gearboxes, after moving back gear such as a gear, when into second gear, even if the clutch of a gear is not kept completely separate, where a gear Input shaft be also idle running, a gear driven wheel idle running, the friction plate of two clutches will not cause mutually to rub because of revolving speed difference Fever is wiped, friction plate overheats and influence the service performance of clutch when avoiding shift hunting.

Preferably, referring to Fig. 4, in the present embodiment, the quantity of every group of through-hole 210 is four and circumferentially uniformly sets along output shaft It sets, two shift rotors 400 are protruded from part shift rotor 400 outside shift slot 310 by rotating clockwise.The setting is protected Card either input shaft drives output shaft rotation or output shaft band driven input shaft to rotate, driven gear 500 and driven wheel 300 Between bonding strength it is essentially identical.

Embodiment two

The present embodiment provides a kind of Pneumatic shifting devices, including Pneumatic shift bar 100, and Pneumatic shift bar 100 is along its length Direction is equipped at intervals with multiple annular grooves 110, Pneumatic shift bar 100 be equipped with by each annular groove 110 respectively with Pneumatic propelling plant The air supply channel 120 of connection；Output shaft, output sleeve are located on Pneumatic shift bar 100, and output shaft is spaced sets along its length Have a multiple groups through-hole 210, the quantity at least two of every group of through-hole 210 and be circumferentially arranged along output shaft, multiple groups through-hole 210 with it is multiple Annular groove 110 corresponds, and output shaft outer surface is equipped with shift slot 310 identical and one-to-one with every group of 210 quantity of through-hole, Shift slot 310 is connected to by multiple groups through-hole 210 with multiple annular grooves 110.

Shift rotor 400, shift rotor 400 can be rotatably arranged in shift slot 310, and shift slot 310 is in shift rotor 400 two sides are respectively formed closed first cavity and the second cavity, a through-hole 210 in the first cavity and shift slot 310 Connection, multiple shift rotors 400 can be hidden in shift slot 310 by rotating in shift slot 310 or part protrudes from Except shift slot 310；Elastic parts, elastic parts be mounted in the second cavity and both ends respectively with the side wall of shift slot 310 and Rotor 400 of shifting gears abuts, and elastic parts can drive shift slot 310 to rotate and be hidden in shift slot 310；And driven gear 500, driven gear 500 is set on output shaft, and 500 inner surface of driven gear is circumferentially with identical as shift 400 quantity of rotor Card slot 510, it is multiple shift rotors 400 protrude from shift slot 310 except parts can be caught in card slot 510, it is driven to complete Gear 500 and output shaft it is circumferentially fixed.

Another kind Pneumatic shifting device provided in this embodiment is carrying out the behaviour that puts into gear compared with above-mentioned Pneumatic shifting device When making, Pneumatic propelling plant equally passes through air supply channel 120, gas chamber and through-hole 210 and supplies to the first cavity, the first cavity volume It is gradually increased, that is, completes rotation of the shift rotor 400 in shift slot 310, shift rotor 400 is able to part and protrudes from shift slot Outside 310, shift rotor 400 is caught in card slot 510, and completion driven gear 500 is circumferentially fixed with output shaft.With above-mentioned Pneumatic shift Unlike device, put into gear operate when, the second cavity volume reduces, and elastic parts is pressurized, when carrying out moving back gear operation, Only need to cancel the gas supply to the first cavity, the screen resilience of elastic parts can be driven shift rotor 400 and rotate, and make rotor of shifting gears 400 hide to shift slot 310, and the gear operation of moving back of the corresponding gear of driven gear 500 is completed.

Pneumatic shifting device provided in this embodiment replaces Pneumatic propelling plant completion to move back gear operation by elastic parts, It is more stable accurate to move back gear operation, reduces Pneumatic propelling plant failure and causes to move back the hidden danger for keeping off operation failure, in addition, this reality The other technologies advantage for applying the Pneumatic shifting device of example offer is identical as the technical advantage of above-mentioned Pneumatic shifting device, herein no longer It repeats.

It is worth explanation, it is spring that elastic parts, which can be set, in the present embodiment.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of Pneumatic shifting device characterized by comprising

Pneumatic shift bar (100), the Pneumatic shift bar (100) are equipped at intervals with multiple annular grooves (110), institute along its length It states Pneumatic shift bar (100) and is equipped with the air supply channel for being connected to each annular groove (110) with Pneumatic propelling plant respectively (120)；

Output shaft, the output sleeve are located on the Pneumatic shift bar (100), and the output shaft is spaced sets along its length Have multiple groups through-hole (210), the quantity at least two of through-hole described in every group (210) and is circumferentially arranged along the output shaft, multiple groups The through-hole (210) and multiple annular grooves (110) correspond, and the output shaft outer surface is equipped with and through-hole described in every group (210) quantity is identical and shifts gears slot (310) correspondingly, the shift slot (310) by through-hole (210) described in multiple groups with it is more A annular groove (110) connection；

It shifts gears rotor (400), the shift rotor (400) can be rotatably arranged in the shift slot (310), the shift slot (310) form closed cavity in the two sides of shift rotor (400), two cavitys respectively with the shift slot (310) adjacent two through-hole (210) connections in, multiple shift rotors (400) can be by the shift slot (310) rotation is in be hidden in shift slot (310) or partially protrude from except the shift slot (310)；And

Driven gear (500), the driven gear (500) are set on the output shaft, driven gear (500) inner surface It is circumferentially with card slot (510) identical with shift rotor (400) quantity, multiple shift rotors (400) protrude from institute The card slot (510) can be caught in by stating the part except shift slot (310), to complete the driven gear (500) and described defeated Shaft it is circumferentially fixed.

2. Pneumatic shifting device according to claim 1, which is characterized in that the quantity of the air supply channel (120) is even Number, the extraneous opening of multiple air supply channel (120) connections are arranged at the same end face of the Pneumatic shift bar (100).

3. Pneumatic shifting device according to claim 2, which is characterized in that the output shaft include shaft (200) and The driven wheel (300) being set on the shaft (200), driven wheel (300) key connection is on the shaft (200), institute Shift slot (310) is stated to be arranged on the driven wheel (300).

4. Pneumatic shifting device according to claim 3, which is characterized in that the shift on the driven wheel (300) Through-hole (210) described in the corresponding two adjacent groups of slot (310).

5. Pneumatic shifting device according to claim 4, which is characterized in that the bottom surface of shift slot (310) is first Cambered surface (311), the one side of shift rotor (400) towards first cambered surface (311) are the second cambered surface (420), described the The axis of the axis of one cambered surface (311), the axis of second cambered surface (420) and the driven wheel (300) is arranged in parallel, Shift rotor (400) sets in second cambered surface (420) there are two air drain (410) closed at one end, two air drains (410) top opening is respectively communicated with two through-holes (210), open-ended being respectively communicated with of two air drains (410) Two cavitys.

6. Pneumatic shifting device according to claim 5, which is characterized in that the two sides difference of shift slot (310) Third cambered surface (312) equipped with a coaxial line, the axis of the axis of the third cambered surface (312) and second cambered surface (420) Line is arranged in parallel, and shift rotor (400) includes the rotation section (430) of cylinder type, and the rotation section (430) plugs Between two third cambered surfaces (312).

7. Pneumatic shifting device according to claim 5, which is characterized in that it further include speed regulating motor, the speed regulating motor It is drivingly connected with input shaft.

8. Pneumatic shifting device according to claim 1-7, which is characterized in that at least one described shift turns The part shift rotor (400) is protruded from the shift slot (310) outside by rotating clockwise by sub (400), at least one The part shift rotor (400) is protruded from the shift slot (310) by rotating counterclockwise by the shift rotor (400) Outside.

9. Pneumatic shifting device according to claim 8, which is characterized in that the quantity of through-hole described in every group (210) is four A and be circumferentially uniformly arranged along the output shaft, two shift rotors (400) are by rotating clockwise and changing described in part Gear rotor (400) protrudes from the shift slot (310) outside.

10. a kind of Pneumatic shifting device characterized by comprising

Pneumatic shift bar (100), the Pneumatic shift bar (100) are equipped at intervals with multiple annular grooves (110), institute along its length It states Pneumatic shift bar (100) and is equipped with the air supply channel for being connected to each annular groove (110) with Pneumatic propelling plant respectively (120)；

Output shaft, the output sleeve are located on the Pneumatic shift bar (100), and the output shaft is spaced sets along its length Have multiple groups through-hole (210), the quantity at least two of through-hole described in every group (210) and is circumferentially arranged along the output shaft, multiple groups The through-hole (210) and multiple annular grooves (110) correspond, and the output shaft outer surface is equipped with and through-hole described in every group (210) quantity is identical and shifts gears slot (310) correspondingly, the shift slot (310) by through-hole (210) described in multiple groups with it is more A annular groove (110) connection；

It shifts gears rotor (400), the shift rotor (400) can be rotatably arranged in the shift slot (310), the shift slot (310) closed first cavity and the second cavity are respectively formed in the two sides of shift rotor (400), first cavity with Through-hole (210) connection in shift slot (310), multiple shift rotors (400) can be by described To be hidden in, shift slot (310) is interior or part protrudes from except the shift slot (310) for rotation in shift slot (310)；

Elastic parts, the elastic parts are mounted on side of in the second cavity and both ends respectively with shift slot (310) Wall and the shift rotor (400) abut, and the elastic parts can drive the shift slot (310) to rotate and be hidden in described It shifts gears in slot (310)；And

Driven gear (500), the driven gear (500) are set on the output shaft, driven gear (500) inner surface It is circumferentially with card slot (510) identical with shift rotor (400) quantity, multiple shift rotors (400) protrude from institute The card slot (510) can be caught in by stating the part except shift slot (310), to complete the driven gear (500) and described defeated Shaft it is circumferentially fixed.