CN109854799A

CN109854799A - Electric Actuator

Info

Publication number: CN109854799A
Application number: CN201910077925.9A
Authority: CN
Inventors: 莫冠均
Original assignee: Ningbo Hujiang Automatic Control Equipment Co Ltd
Current assignee: Ningbo Hujiang Automatic Control Equipment Co Ltd
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2019-06-07
Anticipated expiration: 2039-01-28
Also published as: CN109854799B

Abstract

The present invention relates to executing agency field, Electric Actuator, including shell, and the geared system and driving motor of setting inside housings, and the drive shaft connection arrangement being arranged on shell；The geared system includes driving gear component, and the output end of driving motor is that drive shaft connection arrangement rotation is driven by driving gear component；The drive shaft connection arrangement includes being connected on geared system terminal part and by the output shaft attachment base of geared system driving rotation, and the output shaft connector being fixed on output shaft attachment base；The output shaft connector includes ring body, and the positioning of square drive axis is threaded through inside ring body, and axle sleeve is equipped between the inner sidewall and square drive axis of ring body；It is connected with exporting axis on device in square drive axis and increases axle sleeve, in fixed square drive axis, axle sleeve tightly wrap up column square drive axis, so that it may guarantee that the rectangular center transmission shaft device center that is connected with exporting axis is consistent, reduce shaking when actuator is run.

Description

Electric Actuator

Technical field

The present invention relates to executing agency field more particularly to a kind of Electric Actuator.

Background technique

Electric Actuator, also referred to as electric operator (electrical executing fittings) are industrial automatic Common valve actuator in control system is widely used in petrochemical industry, natural gas, metallurgical smelting, electric power, papermaking, steel The automatic control system of the industry productions process such as iron, cement, municipal and environment-friendly, to meet the automation control that industrial production improves increasingly Demand processed.Electric Actuator for connecting valve body, Electric Actuator is using motor be as driving source, with DC current control and Feedback signal, when upper instrument or computer issue after controlling signal, Electric Actuator is acted according to signal magnitude ratio, is led to Crossing output shaft makes valve or air door reach corresponding aperture, and system opening amount signal is fed back in control room, to complete The regulatory function of system.

Technical solution disclosed in the Chinese patent literature of Publication No. CN205090056U is related to a kind of Electric Actuator. In the first patented technology, Electric Actuator includes output shaft device, which includes output shaft, limit plate, folder The lower end of tight block and tooth plate, the output shaft is inserted into the gear-box, and is limited radially with the gear-box by latch Position connection, the gear-box lower surface is exposed in the lower end of the output shaft, and limits connection in the axial direction by retaining ring, described defeated Shaft upper end is equipped with a fixed block in hollow shape, and the inside of the fixed block is equipped with two panels tooth plate arranged in parallel, The gripping block is set to the inside of the fixed block, and is symmetrically set with the tooth plate, the gripping block by screw with The fixed block is connected, and across two tooth plates, the limit plate is sleeved on the output shaft screw, and is located at The lower section of the fixed block, the retaining ring is arc-shaped in opening, and opposite design has a lug, the lug with the opening It bends downward, the lower end outside face of the output shaft is equipped with a circle retainer ring, and the retaining ring is caught in the retainer ring.But above-mentioned side The case situation different there is the square drive axis thickness of air door in practice, although above scheme can be according to square drive axis Thickness adjusts screw and realizes positioning, but its scheme not can guarantee square drive axis and drive shaft connection arrangement centralized positioning, especially Be in the thinner situation of square drive axis, will there is the output end of square drive axis and geared system is inclined in above scheme Heart positioning, generates shaking and noise, influences normal use when running actuator.

Existing Electric Actuator can be provided with release lever component, if Authorization Notice No. is in CN 205090057U A kind of Electric Actuator release button component is disclosed in state's utility model patent document, which includes upper cover, release Button and spring, the button release is as pressing and trigger unit, the smooth up and down motion on the direction perpendicular to gear-box, institute Reset components of the spring as button release are stated, after user's operation terminates only, button release is popped up into reset, convenient for next time Operation, above structure is simple, and user's operation is convenient, and is not easy to break down, even if dismantling and pacifying when maintenance Dress is all more convenient, and maintenance cost is low.But the release button component needs in above-mentioned first patent formula can be seen that according to analysis User's Continued depression button release can just be unlocked operation, and user needs to carry out one-handed performance in this case, very inconvenient.

In addition, existing Electric Actuator is generally arranged two microswitches, and by two cams respectively correspond two it is micro- Dynamic switch；Band moving gear when actuator turns, gear axle portion drive cam rotation, trigger microswitch in cam rotation process, Microswitch transmits signal.Currently, it is i.e. unadjustable relatively fixed after above-mentioned cam installation, therefore touch fine motion after assembling and open Angle when pass can not be adjusted, and two microswitches of above-mentioned Electric Actuator correspond respectively to air door and completely close (i.e. 0 °) and air door fully open (i.e. 90 °) two states；Its shortage is anti-in shutdown of the door opening angle between 0 ~ 90 ° Feedback, therefore can only be very inconvenient by taking shutdown in time after manually external equipment being used to observe dampers angular.

Summary of the invention

To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of Electric Actuator, the Electric Actuator structures Simply, easy to use；And it is connected with exporting axis on device in square drive axis and increases axle sleeve, in fixed square drive axis, axis The hard-pressed bale that is locked wraps up in column square drive axis, so that it may guarantee that the rectangular center transmission shaft device center that is connected with exporting axis is consistent, reduce Shaking when actuator is run.

In order to achieve the above purpose, present invention employs technical solutions below:

Electric Actuator, including shell, and the geared system and driving motor of setting inside housings, and be arranged in shell On drive shaft connection arrangement；The geared system includes bottom plate and top plate, and the transmission of positioning between the bottom panel and top panel Gear assembly and feedback gear component, the output end of driving motor are that drive shaft connection arrangement rotation is driven by driving gear component Turn；It is characterized by: the drive shaft connection arrangement includes being connected on geared system terminal part and being driven by geared system to revolve The output shaft attachment base turned, and the output shaft connector being fixed on output shaft attachment base；The output shaft connector includes Ring body, the positioning of square drive axis are threaded through inside ring body, and axle sleeve is equipped between the inner sidewall and square drive axis of ring body；The axis Set includes that the side round part of integrated injection molding and end ring portion, the shape of the inner sidewall of the lateral wall and ring body of the side round part match Fitting, and the lateral wall of side round part includes at least the position on two different circumferences；The inside of the side round part be with The compatible square hole of the shape of square drive axis, axle sleeve is arranged using interference tightly wraps up column square drive axis；The side round part Side wall be equipped with notch, notch with its inside square hole one end angle communicate；Fixing screws are additionally provided on output shaft connector, Gu Screw is determined across output shaft connector and is offseted through one end angle of the notch and square drive axis of axle sleeve side round part；The end ring Portion is used to be covered on above the link position of ring body and side round part.

Preferably, driving gear component includes the motor gear being connected on the output shaft of driving motor, and connection Output gear on output shaft attachment base side, and between motor gear and output gear successively engaged transmission it is multiple Driving cog；Multiple driving cogs include the first driving cog being successively meshed, the second driving cog, third driving cog and the 4th transmission Tooth, the first driving cog are meshed with motor gear, and the 4th driving cog is meshed with output gear；First driving cog is fixed by first Position axis positioned, and the first driving cog can be adjusted axially realization and motor gear, the second driving cog with respect to first locating shaft It is detached from or engages.

Preferably, further including the release lever component for acting on the first driving cog, first below the first driving cog is fixed Volute spring is arranged on the axis of position；The release lever component, including guide post, and the unlock being movably set in guide post Handle；Guide post is vertically located on bottom plate, and release lever is set in guide post and can be along guide post axial direction up and down adjustment； Further include the return spring being sheathed below release lever, and acts on the unblock button of release lever；The unblock button It is mounted on shell, being at least partially exposed to shell enables staff to operate on it, and unblock button is under Buckle can be formed with shell when pressure condition to fix.In the release lever component, including guide post, and it is movably set in guiding Release lever on column, and it is sheathed on the return spring below release lever, and act on the unblock button of release lever. Wherein, unblock button can form buckle with shell in pressed status and fix, to can still be maintained after removing external force Unlocked state, it is necessary to could be realized under the action of the return spring in the snapping relationship that external force releases above-mentioned unblock button and shell It resets.Therefore operator can vacate hand and carry out other operations, use is more convenient without pinning unblock button always.

Preferably, the lower end of the release lever is equipped with annular portion, the top of annular portion is equipped with projecting ring section；Return spring Lower end offset with bottom plate, the lower end of return spring rotates inward a circle and wraps guide post；Return spring is surrounded and is coated on On the outside of annular portion, upper end and the projecting ring section of return spring offset.

Preferably, the shell includes pedestal, and the upper cover being covered on pedestal；The upper cover side wall is equipped with upper For lid notch for placing unblock button, unblock button includes the button body and button end plate of integrated injection molding, button end plate Middle part connect with button body by dowel, constitute between button end plate and button body in dowel two sides up and down Upper gap and lower gap；The upper end of the button end plate is equipped with buckle step, and the side wall of upper cover is in buckle step and button Between main body；In non-unlocked state, the outer side surface of the inner end and upper cover that buckle step offsets；When unlocked, it presses Button end plate elastic reset, the upper cover gap edge for buckling step and upper cover buckle.

Preferably, further including the feedback switch component for controlling driving motor braking in time, the feedback gear group Part includes the attachment base feedback teeth portion being arranged on output shaft attachment base, and the anti-of transmission that be meshed with attachment base feedback teeth portion Feedback fan tooth, and the feedback gear of transmission of being meshed with feedback fan tooth；Feedback gear is connected with feedback switch component.

Preferably, the feedback switch component includes the fixation camshaft being fixedly connected with feedback gear, and it is arranged Adjusting knob on adjustable convex wheel shaft on fixed camshaft, and connection adjustable convex wheel shaft, and be set on the base Microswitch seat；The fixed camshaft is equipped with the first cam part and second with feedback gear synchronous rotary, fixed camshaft Cam part；Circumferential linkage is realized between adjustable convex wheel shaft and fixed camshaft within the scope of the dynamics of restriction, is more than restriction dynamics model It encloses, adjustable convex wheel shaft and fixed camshaft can be made to generate circumferentially opposed movement, adjustable convex wheel shaft is equipped with third cam part；Institute The first cam part, the second cam part and third cam part is stated in axial direction to arrange；The microswitch seat is equipped with and first Cam part, the second cam part and third cam part are distributed corresponding first microswitch, the second microswitch and third fine motion Switch.The feedback switch component includes the fixation camshaft being fixedly connected with feedback gear, and is set on fixed camshaft Adjustable convex wheel shaft, and the adjusting knob on connection adjustable convex wheel shaft, and the microswitch seat being set on the base.Its In, it is to correspond respectively to dampers angular that the first cam part, which triggers the first microswitch and the second cam part the second microswitch of triggering, 0 ° and 90 °；Meanwhile fixed camshaft also will drive the rotation of adjustable convex wheel shaft, the third cam part triggering on adjustable convex wheel shaft Third microswitch is used to shut down in 0 ~ 90 ° of air port range internal trigger of setting.Further, pass through external force rotation of adjustment knob Circumferentially opposed movement is generated to drive adjustable convex wheel shaft and fix camshaft, then third cam part can be made to correspond to different air doors Angle.Therefore, which can be realized the automatic control of different dampers angulars, and use is more convenient.

Preferably, the adjusting knob and adjustable convex wheel shaft realize circumferential linkage using grafting, the adjusting knob is embedding Enter inside upper cover, the upper lid surface mark on adjusting knob periphery is angled.

Preferably, the inside of the adjustable convex wheel shaft is equipped with spline, the upper end of fixed camshaft is set along its circumferential direction There is multi-disc support claw, when adjustable cam axis is socketed on fixed camshaft, the multi-disc support claw on fixed camshaft is by adjustable convex Axle end penetrates in spline, and the lateral wall of support claw is equipped with the tooth matched with spline.

By adopting the above technical scheme, which is related to a kind of Electric Actuator to the present invention.In the Electric Actuator, pass Moving axis attachment device is used to connect the square drive axis of air door, and driving motor drives transmission axis connection to fill by driving gear component It sets and square drive axis thereon rotates；Therefore, which has structure simple, easy to use, what work efficiency is high Advantage.Further, in the drive shaft connection arrangement, output shaft connector includes ring body, and the positioning of square drive axis is threaded through Inside ring body, axle sleeve is equipped between the inner sidewall and square drive axis of ring body, axle sleeve is rectangular using interference setting tightly package column Transmission shaft.In the program, square drive axis, which is connected with exporting axis on device, increases axle sleeve, and in fixed square drive axis, axle sleeve is tight Hard-pressed bale wraps up in column square drive axis, so that it may guarantee that the rectangular center transmission shaft device center that is connected with exporting axis is consistent, reduce and execute Shaking when device is run.

Detailed description of the invention

Fig. 1 is the first structural schematic diagram of drive shaft connection arrangement in the present invention.

Fig. 2 is second of structural schematic diagram of drive shaft connection arrangement in the present invention.

Fig. 3 is the axle sleeve schematic diagram in second of structure of drive shaft connection arrangement.

Fig. 4 is the drive mechanism stereoscopic schematic diagram of Electric Actuator.

Fig. 5 is the drive mechanism floor map of Electric Actuator.

Fig. 6 is the drive mechanism partial sectional view of Electric Actuator.

Fig. 7 is that release lever component is in non-unlocked state schematic diagram.

Fig. 8 is release lever component schematic diagram in the unlocked state.

Fig. 9 is the structural schematic diagram of volute spring.

Figure 10 is the release lever scheme of installation in release lever component.

Figure 11 is the structural schematic diagram of unblock button.

Figure 12 is the cross-sectional view of feedback switch component.

Figure 13 is the perspective view of feedback switch component.

Figure 14 is adjustable convex wheel shaft and fixed camshaft assembling schematic diagram in feedback switch component.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " clockwise ", " inverse The orientation or positional relationship of the instructions such as hour hands " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally Invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side Position construction and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two It is a or more than two, unless otherwise restricted clearly.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term 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 be machine Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be Concrete meaning in bright.

In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower" It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above " Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of First feature horizontal height is less than second feature.

A kind of Electric Actuator as shown in Fig. 1 ~ 14, including shell 1, and the geared system inside shell 1 is set With driving motor 2, and the drive shaft connection arrangement being arranged on shell 1.The drive shaft connection arrangement is for connecting air door Square drive axis, the output end of driving motor 2 drives the rotation of square drive axis by geared system, to realize adjustment air door The purpose of angle.The technical solution as disclosed in the Chinese patent literature of the Publication No. CN205090056U in background technique In, output shaft device can fast implement being connected and fixed for the square drive axis of air door.But there is the rectangular of air door in practice The different situation of transmission shaft thickness, although above scheme, which can adjust screw according to square drive axis thickness, realizes positioning, its Scheme not can guarantee square drive axis and drive shaft connection arrangement centralized positioning, especially in the thinner situation of square drive axis Under, in above scheme will there is the output end bias of square drive axis and geared system to position, production when running actuator Raw shaking and noise, influence normal use.Based on drawbacks described above, the application uses following two embodiment.It is a kind of wherein In embodiment, drive shaft connection arrangement as shown in Figure 1 includes being connected on geared system terminal part and being driven by geared system The output shaft attachment base 31 of rotation, and the output shaft connector 32 being fixed on output shaft attachment base 31, and be connected to defeated It the adjusting component on mandrel connector 32 and holds down assembly out.The adjusting component includes U-shaped adjusting bracket 33, U-shaped adjusting bracket 33 are adjusted by two U-shaped arms relative to output shaft connector 32, adjust direction along the axial direction of U-shaped arm；It is being embodied In scheme, two U-shaped arms of U-shaped adjusting bracket 33 pass through output shaft connector 32, and U-shaped arm is being close to one section of U-shaped opening Thread segment 331, thread segment 331 refer to that this section of U-shaped arm is equipped with external screw thread, nut 34 are connected on thread segment 331, by turning Nut 34 is the position of adjustable U-shaped adjusting bracket 33.It is described to hold down assembly including the U-shaped opening for being in U-shaped adjusting bracket 33 Interior compact heap 35, and the adjusting screw rod 36 that the driving compact heap 35 is adjusted relative to U-shaped adjusting bracket 33；The tune Section screw rod 36 is threaded through in the U-shaped opening of U-shaped adjusting bracket 33, and parallel with the U-shaped arm of U-shaped adjusting bracket 33, adjusts spiral shell The inner end of bar 36 offsets with compact heap 35.The adjusting screw rod 36 is engaged relative to 32 screw thread of output shaft connector, adjusts spiral shell Bar 36 can be realized and be adjusted axially when rotating, so as to adjust compact heap 35 relative between the U-shaped bottom of U-shaped adjusting bracket 33 Away from；And the clamping opening of positioning square drive axis is constituted between compact heap 35 and the U-shaped bottom of U-shaped adjusting bracket 33, therefore adjust Clamping opening size is realized square drive axis and is positioned.In addition, in order to avoid compact heap 35 is detached from U-shaped adjusting bracket 33, compact heap 35 both ends are equipped with targeting port, and two U-shaped arms of U-shaped adjusting bracket 33 are in targeting port, so that compact heap 35 be made to be only capable of It could be detached from it from the U-shaped opening of U-shaped adjusting bracket 33.So in 35 moving process of compact heap, U-shaped adjusting bracket 33 U-shaped arm for compact heap 35 have guiding role, guarantee clamping opening be adapted with square drive axis.Using above-mentioned transmission axis connection When device positions square drive axis, first the clamping opening between compact heap 35 and the U-shaped bottom of U-shaped adjusting bracket 33 is tuned up, it will be square Shape transmission shaft is inserted into output shaft connector 32, is then adjusted U-shaped adjusting bracket 33 and adjusting screw rod 36 simultaneously, is adjusted U-shaped Bracket 33 and 35 relative motion of compact heap are close, and clamping opening reduces positioning square drive axis；And U-shaped adjusting bracket 33 and adjusting screw rod 36 adjusting can be adaptively adjusted, i.e. 33 adjustment amount hour of U-shaped adjusting bracket can also increase the adjustment amount of adjusting screw rod 36, Therefore according to it is above-mentioned be adaptively adjusted certifiable square drive axis be connected with exporting axis device 32 center it is consistent, avoid bias Actuator shakes caused by setting.

In an alternate embodiment as shown in Figure 2, drive shaft connection arrangement includes being connected to geared system end In portion and by the output shaft attachment base 31 of geared system driving rotation, and the output shaft being fixed on output shaft attachment base 31 connects Connect device 32.The output shaft connector 32 includes ring body, and the positioning of square drive axis is threaded through inside ring body, by output shaft when use Connector 32 drives square drive axis synchronous rotary.It is the inner sidewall in ring body and rectangular biography in a kind of wherein preferred embodiment Axle sleeve 37 is equipped between moving axis.The axle sleeve 37 is specifically as shown in figure 3, including side round part 371 and the end of integrated injection molding The lateral wall of ring portion 372, the side round part 371 is bonded with the matching of the shape of the inner sidewall of ring body, and the lateral wall of side round part 371 Including at least the position on two different circumferences, i.e., the lateral wall of the described side round part 371 cannot use positive round shape, such as It preferentially is adopted as profiled shape shown in figure, to guarantee that ring body and axle sleeve 37 are circumferentially positioned, ring body is able to drive the synchronous rotation of axle sleeve 37 Turn.The inside of the side round part 371 is square hole compatible with the shape of square drive axis, and axle sleeve 37 is arranged tightly using interference Wrap up column square drive axis.The side wall of the side round part 371 is equipped with notch 373, notch 373 and its internal square hole one end angle It communicates.The end ring portion 372 is used to be covered on above the link position of ring body and side round part 371, on the one hand covers above-mentioned ring body The special-shaped connecting portion constituted with side round part 371, reaches beauty function；On the other hand it is also convenient for the installation of axle sleeve 37 and determines Position.In the program, square drive axis, which is connected with exporting axis on device 32, increases axle sleeve 37, in fixed square drive axis, axle sleeve 37 Tightly wrap up column square drive axis, so that it may guarantee that rectangular center transmission shaft 32 center of device that is connected with exporting axis is consistent, reduce Shaking when actuator is run.Further in preferred embodiment, fixing screws 38 are additionally provided on output shaft connector 32, it is fixed Screw 38 passes through one end angle phase of output shaft connector 32 and notch 373 and square drive axis through 37 side round part 371 of axle sleeve It supports, positions square drive axis completely by fixing screws 38, stability is more preferable, prevents the axial runout of square drive axis.

As shown in Fig. 4 ~ 6, the geared system includes bottom plate 41 and top plate 42, and be located in bottom plate 41 and top plate 42 it Between driving gear component and feedback gear component, the output end of above-mentioned driving motor 2 is by driving gear component driving side The rotation of shape transmission shaft, specifically, driving gear component includes the motor gear 43 being connected on the output shaft of driving motor 2, And be connected to the output gear 44 on 31 side of output shaft attachment base, and between motor gear 43 and output gear 44 according to Multiple driving cogs of secondary engaged transmission, the driving cog particular number is not unique, multiple driving cogs as shown in the figure include according to Secondary the first driving cog 45 being meshed, the second driving cog 46, third driving cog 47 and the 4th driving cog 48, the first driving cog 45 with Motor gear 43 is meshed, and the 4th driving cog 48 is meshed with output gear 44.During driving motor 2 exports, motor gear 43, the first driving cog 45, the second driving cog 46, third driving cog 47, the 4th driving cog 48 and output gear 44 successively engage biography It is dynamic, it realizes and output shaft attachment base 31 is driven to rotate, and limited post is installed in bottom plate 41 or top plate 42, it can be for output shaft The slewing area of attachment base 31 is defined.Above-mentioned motor gear 43, the first driving cog 45, the second driving cog 46, third transmission The engaging structure of tooth 47, the 4th driving cog 48 and output gear 44 is the conventional technical means in machinery field, therefore is not made in detail It records.

Above-mentioned driving gear component provides a kind of drive mechanism of the drive of driving motor 2 output shaft attachment base 31, driving electricity The output quantity of machine 2 determines dampers angular, and in order to avoid power-off or motor damage when, need that a solution is arranged in actuator Lock set, the drive connection being connected with exporting axis between seat 31 for temporarily releasing driving motor 2.Thus in the case, it passes In multiple driving cogs in movable tooth wheel assembly at least one driving cog can activity, realize the engagement of driving cog adjacent thereto with It is detached from.Such as Fig. 4, in embodiment shown in 6 ~ 8, the first driving cog 45, the second driving cog 46, third driving cog 47 and the 4th are passed The first driving cog 45 in movable tooth 48 is activity setting, it is specific as shown, the first driving cog 45 by the first locating shaft 451 into Row positioning, the first driving cog 45 can be adjusted axially realization and motor gear 43, the second driving cog 46 with respect to the first locating shaft 451 Disengaging or engagement, be arranged with volute spring 452 on the first locating shaft 451 of the lower section of the first driving cog 45, actuator further includes It can act on the release lever component of the first driving cog 45.When external force is when release lever component, release lever component The first driving cog 45 is pushed, the first driving cog 45 is made axially to move down and be separated with motor gear 43 and the second driving cog 46, it is real It now unlocks, the first driving cog 45 pushes volute spring 452 at this time, and volute spring 452 is made to generate deformation；When release lever component is multiple Behind position, release lever component cancels the pressure of the first driving cog 45, therefore under the action of volute spring 452, the first transmission Tooth 45 is axial to be moved up and is meshed with motor gear 43 and the second driving cog 46, and unlock releases.In the program, the volute spring The 452 head bendings contacted with the first driving cog 45, so that volute spring 452 is fractureed fracture will not be with high-speed rotation (500 ~ 800 Rev/min) the contact of the first driving cog 45, prevent plane of rupture sharp burrs from scratching the first driving cog 45, reduce abrasion, and subtract Small first driving cog 45 is beated, and stability is increased, and reduces noise.

As shown in Fig. 6 ~ 11, the implementable solution of the release lever component is more, in general only needs to include guide post 51, and the release lever 52 being movably set in guide post 51, guide post 51 be vertically located on bottom plate 41, unlocks hand Handle 52 is set in guide post 51 and can unlock in the axial up and down adjustment of guide post 51, release lever 52 at least provided with one Arm 521 acts on the first driving cog 45, can push or discharge the first driving cog 45 by adjusting the height of release lever 52.When So, in order to which 52 component of release lever is easy to use and the stability of structure, 52 component of release lever in the present embodiment is also wrapped The return spring 53 for being sheathed on 52 lower section of release lever is included, and acts on the unblock button 54 of release lever 52.Wherein, described The lower end of release lever 52 is equipped with annular portion 522, and the top of annular portion 522 is equipped with projecting ring section 523；The lower end of return spring 53 with Bottom plate 41 offsets, and return spring 53 offsets around 522 outside of annular portion, upper end and the projecting ring section 523 of return spring 53 is coated on. Since the outer diameter of projecting ring section 523 is greater than guide post 51, the outer diameter of return spring 53 is greater than guide post 51, in order to press in unlock When tight return spring 53,53 bottom of return spring will not be crooked, increases spring stability；Therefore under the return spring 53 End rotates inward a circle, wraps guide post 51.Above-mentioned unblock button 54 is mounted on shell 1, and it at least partially reveals For shell 1 so as to operate on it staff, and unblock button 54 can be with shell 1 in pressed status It forms buckle to fix, so that unlocked state can still be maintained after removing external force, and above-mentioned unlock must be released in external force and pressed The snapping relationship of button 54 and shell 1 could realize reset under the action of return spring 53.Specifically in the present embodiment, described Shell 1 includes pedestal 11, and the upper cover 12 of covering on the pedestal 11；12 side wall of upper cover is equipped with upper cover notch 13 and is used for Unblock button 54 is placed, unblock button 54 is specific as shown in figure 11, button body 541 and turret terminal including integrated injection molding The middle part of plate 542, button end plate 542 is connect with button body 541 by dowel 543, button end plate 542 and button body The upper gap 544 and lower gap 545 for being in about 543 two sides of dowel are constituted between 541.Since unblock button 54 is not molded material Material is made, and has elastic properties of materials, therefore the button end plate 542 in unblock button 54 can be centered on dowel 543, class lever The gap size in gap 544 and lower gap 545 in the adjustment of formula, the gap of upper gap 544 and lower gap 545 in its natural state Size is identical.The upper end of the button end plate 542 is equipped with buckle step 546, the side wall of upper cover 12 be in buckle step 546 with Between button body 541；In non-unlocked state, the outer side surface of the inner end and upper cover 12 that buckle step 546 offsets, at this time Upper gap 544 is bigger than the gap in lower gap 545.When the pushing of unblock button 54 reaches unlocked state, 542 elasticity of button end plate is multiple Position, upper gap 544 is identical with the gap size in lower gap 545, buckles 13 edge card of upper cover notch of step 546 and upper cover 12 Button；External force, which is removed above-mentioned buckle structure, at this time can still be maintained unlocked state.When needing to release unlocked state, need outer Power acts on the lower end of button end plate 542, and the upper end of button end plate 542 is tilted outward due to leverage at this time, releases Buckle step 546 and 13 edge snapping relationship of upper cover notch；And under the action of return spring 53, unblock button 54 is lifted, card The outer side surface of the inner end and upper cover 12 of detaining step 546 offsets and is in non-unlocked state.Using 52 groups of above-mentioned release lever Part, the unblock button 54 in 52 component of release lever can be buckled with shell 1 fixes, and solution can still be maintained after removing external force Lock status；Therefore operator can vacate hand and carry out other operations, use is more square without pinning unblock button 54 always Just.

Above-mentioned Electric Actuator finally drives the rotation of square drive axis by driving motor 2, so as to adjust dampers angular, wind Door angle is adjusted between 0 ~ 90 °, therefore needs to provide feedback in the proper angular position of door opening, is driven to close in time Dynamic motor 2 avoids the excessive the case where exporting of driving motor 2.Therefore, the Electric Actuator further includes feedback switch group Part, feedback switch component in time control driving motor 2 brake, and the feedback gear component in said gear device be used for Feedback switch component feeds back the opening angle of air door, and triggers feedback switch component in predetermined angular.As shown in Figures 4 and 5, described Feedback gear component includes the attachment base feedback teeth portion 311 being arranged on output shaft attachment base 31, and feeds back tooth with attachment base Portion 311 is meshed the feedback fan tooth 49 of transmission, and the feedback gear 40 of transmission of being meshed with feedback fan tooth 49.The rectangular biography Moving axis is connected on output shaft attachment base 31, in 31 rotation process of output shaft attachment base, by attachment base feedback teeth portion 311, instead Feedback fan tooth 49 and feedback gear 40 are turned angle feed-back to feedback switch component.Described feedback switch component such as Figure 12 ~ Shown in 14, including the fixation camshaft 61 being fixedly connected with feedback gear 40, and it is set in adjustable on fixed camshaft 61 Adjusting knob 63 on camshaft 62, and connection adjustable convex wheel shaft 62, and the microswitch seat 64 of setting on the pedestal 11. For the fixed camshaft 61 with 40 synchronous rotary of feedback gear, it is convex that fixed camshaft 61 is equipped with the first cam part 611 and second Wheel portion 612；Circumferential linkage is realized between adjustable convex wheel shaft 62 and fixed camshaft 61 within the scope of the dynamics of restriction, and is more than above-mentioned Dynamics range can then make adjustable convex wheel shaft 62 and fixed camshaft 61 generates circumferentially opposed movement, and adjustable convex wheel shaft 62 is equipped with the Three cam parts 621, the adjusting knob 63 realize circumferential linkage using grafting with adjustable convex wheel shaft 62.First cam part 611, the second cam part 612 and third cam part 621 are in axial direction arranged, and are in different positions in circumferencial direction；It is micro- Dynamic switch base 64, which is equipped with, is distributed corresponding first with the first cam part 611, the second cam part 612 and third cam part 621 Microswitch 641, the second microswitch 642 and third microswitch 643.First cam part 611 triggers the first fine motion and opens Closing 641, perhaps the second cam part 612 triggers the second microswitch 642 or third cam part 621 triggers third microswitch 643 can make 2 brake application stoping of driving motor；And the first cam part 611 triggers the first microswitch 641 and the second cam part 612 the second microswitches 642 of triggering are 0 ° and 90 ° for corresponding respectively to dampers angular.In current Electric Actuator generally all Above-mentioned two groups of trigger architectures be will include for feeding back switching and fully opening completely for air door, but it lacks in door opening angle Shutdown feedback between 0 ~ 90 °, therefore can only be by taking shutdown in time after manually external equipment being used to observe dampers angular. And it attached the third cam part 621 on adjustable convex wheel shaft 62 and corresponding third microswitch 643 in this programme； And when being more than restriction dynamics range, adjustable convex wheel shaft 62 and fixed camshaft 61 generate circumferentially opposed movement, therefore can lead to Crossing external force adjustable convex wheel shaft 62 makes it rotate (in figure, realizing by rotation of adjustment knob 63), and makes third cam part 621 correspond to different dampers angulars.As shown in Figure 12, adjusting knob 63 is embedded in inside upper cover 12, then can pass through screw Knife, which turns, rotates adjusting knob 63, so then defines that needing professional to be adjusted by tool has evaded other people Any operation；In addition, 12 surface of the upper cover mark on 63 periphery of adjusting knob is angled, after intuitively embodying adjusting Air port size.In above-mentioned Electric Actuator, output shaft attachment base 31 rotates under the action of driving motor 2, output shaft attachment base Attachment base feedback teeth portion 311 on 31 rotates synchronously, and drives feedback gear 40 to rotate by feedback fan tooth 49.And feedback gear Fixation camshaft 61 thereon is driven to rotate in 40 rotation processes, in fixed 61 rotation process of camshaft, the touching of the first cam part 611 Send out the first microswitch 641 and the second cam part 612 trigger the second microswitch 642 be correspond respectively to 0 ° of dampers angular and 90°；Meanwhile fixed camshaft 61 also will drive the rotation of adjustable convex wheel shaft 62, the third cam part 621 on adjustable convex wheel shaft 62 is touched Third microswitch 643 is sent out to be used to shut down in 0 ~ 90 ° of air port range internal trigger of setting；And pass through external force rotation of adjustment knob 63 Circumferentially opposed movement is generated to drive adjustable convex wheel shaft 62 and fix camshaft 61, then third cam part 621 can be made to correspond to not Same dampers angular.In above scheme, week is realized within the scope of the dynamics of restriction between adjustable convex wheel shaft 62 and fixed camshaft 61 Specific embodiment to linkage is as shown in figure 14, and the inside of adjustable convex wheel shaft 62 is equipped with spline 622, fixed camshaft 61 Upper end is circumferentially with multi-disc support claw 613 along it, and 62 set 34 of adjustable convex wheel shaft connects when on fixed camshaft 61, fixed cam Multi-disc support claw 613 on axis 61 is penetrated in spline 622 by 62 bottom of adjustable convex wheel shaft, is set on the lateral wall of support claw 613 There is the tooth matched with spline 622.When fixed camshaft 61 links with adjustable convex wheel shaft 62, adjustable convex wheel shaft 62 and solid The multiple support claw 613(for determining 61 top of camshaft are 4 as shown in the figure) it is linked together by spline.When adjustable convex wheel shaft 62 When relatively fixed camshaft 61 moves, fixed camshaft 61 is due to connecting and can not rotate with feedback gear 40, fixed camshaft 61 On 4 support claws 613 be inwardly squeezed and deformed, make to relatively rotate between adjustable convex wheel shaft 62 and fixed camshaft 61 to random angle After degree, adjusting knob 63 is unclamped, 4 support claws 613 are connect with adjustable cam again at the top of fixed cam, complete to adjust angle function Energy.Using the above scheme, suitable air port opening angle can be adjusted in Electric Actuator as needed, to realize quickly quasi- Really position adjustment air port opening angle.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any One or more embodiment or examples in can be combined in any suitable manner.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.

Claims

1. Electric Actuator, including shell, and the geared system and driving motor of setting inside housings, and be arranged in shell Drive shaft connection arrangement on body；The geared system includes bottom plate and top plate, and the biography of positioning between the bottom panel and top panel Movable tooth wheel assembly and feedback gear component, the output end of driving motor are to drive drive shaft connection arrangement by driving gear component Rotation；It is characterized by: the drive shaft connection arrangement includes being connected on geared system terminal part and being driven by geared system The output shaft attachment base of rotation, and the output shaft connector being fixed on output shaft attachment base；The output shaft connector packet Ring body is included, the positioning of square drive axis is threaded through inside ring body, and axle sleeve is equipped between the inner sidewall and square drive axis of ring body；It is described Axle sleeve includes side round part and the end ring portion of integrated injection molding, the shape of the inner sidewall of the lateral wall and ring body of the side round part With fitting, and the lateral wall of side round part includes at least the position on two different circumferences；The inside of the side round part is Square hole compatible with the shape of square drive axis, axle sleeve is arranged using interference tightly wraps up column square drive axis；The side wall The side wall in portion is equipped with notch, and notch is communicated with its internal square hole one end angle；Fixing screws are additionally provided on output shaft connector, Fixing screws pass through output shaft connector and offset through one end angle of the notch and square drive axis of axle sleeve side round part；The end Ring portion is used to be covered on above the link position of ring body and side round part.

2. Electric Actuator according to claim 1, it is characterised in that: driving gear component includes being connected to driving motor Output shaft on motor gear, and the output gear being connected on output shaft attachment base side, and motor gear with Between output gear successively engaged transmission multiple driving cogs；Multiple driving cogs include the first driving cog being successively meshed, Two driving cogs, third driving cog and the 4th driving cog, the first driving cog are meshed with motor gear, the 4th driving cog and output gear Wheel is meshed；First driving cog is positioned by the first locating shaft, and the first driving cog can axially be adjusted with respect to the first locating shaft Section realize with motor gear, the second driving cog disengaging or engage.

3. Electric Actuator according to claim 2, it is characterised in that: further include the unlock hand for acting on the first driving cog Handle component is arranged with volute spring on the first locating shaft below the first driving cog；The release lever component, including guiding Column, and the release lever being movably set in guide post；Guide post is vertically located on bottom plate, and release lever is set in guiding And it can be along guide post axial direction up and down adjustment on column；Further include the return spring being sheathed below release lever, and acts on The unblock button of release lever；The unblock button is mounted on shell, and being at least partially exposed to shell makes staff It can operate on it, and unblock button can form buckle with shell in pressed status and fix.

4. Electric Actuator according to claim 3, it is characterised in that: the lower end of the release lever is equipped with annular portion, The top of annular portion is equipped with projecting ring section；The lower end of return spring offsets with bottom plate, and the lower end of return spring rotates inward a circle Wrap guide post；Around being coated on the outside of annular portion, upper end and the projecting ring section of return spring offset return spring.

5. Electric Actuator according to claim 4, it is characterised in that: the shell includes pedestal, and is covered on bottom Upper cover on seat；The upper cover side wall is equipped with upper cover notch for placing unblock button, unblock button include integrated injection molding at The button body and button end plate of type, the middle part of button end plate are connect with button body by dowel, button end plate and button Upper gap and lower gap in two sides above and below dowel are constituted between main body；The upper end of the button end plate is equipped with buckle platform The side wall of rank, upper cover is between buckle step and button body；In non-unlocked state, inner end and the upper cover of step are buckled Outer side surface offset；When unlocked, button end plate elastic reset buckles the upper cover gap edge card of step and upper cover Button.

6. Electric Actuator according to claim 1, it is characterised in that: further include for controlling driving motor braking in time Feedback switch component, the feedback gear component include be arranged on output shaft attachment base attachment base feedback teeth portion, and The feedback of transmission of being meshed with attachment base feedback teeth portion fans tooth, and the feedback gear of transmission of being meshed with feedback fan tooth；Feedback Gear is connected with feedback switch component.

7. Electric Actuator according to claim 6, it is characterised in that: the feedback switch component includes and feedback gear On the fixation camshaft being fixedly connected, and the adjustable convex wheel shaft being set on fixed camshaft, and connection adjustable convex wheel shaft Adjusting knob, and the microswitch seat being set on the base；The fixed camshaft is fixed with feedback gear synchronous rotary Camshaft is equipped with the first cam part and the second cam part；Between adjustable convex wheel shaft and fixed camshaft within the scope of the dynamics of restriction It realizes circumferential linkage, so that adjustable convex wheel shaft and fixed camshaft is generated circumferentially opposed movement more than dynamics range is limited, it can Camshaft is adjusted to be equipped with third cam part；First cam part, the second cam part and third cam part are in axial direction arranged； The microswitch seat is equipped with the first fine motion corresponding with the first cam part, the second cam part and the distribution of third cam part and opens Pass, the second microswitch and third microswitch.

8. Electric Actuator according to claim 7, it is characterised in that: the adjusting knob and adjustable convex wheel shaft are using slotting The circumferential linkage of realization is connect, the adjusting knob is embedded in inside upper cover, and the upper lid surface mark on adjusting knob periphery is angled.

9. Electric Actuator according to claim 7, it is characterised in that: the inside of the adjustable convex wheel shaft is equipped with spline The upper end of slot, fixed camshaft is circumferentially with multi-disc support claw along it, when adjustable cam axis is socketed on fixed camshaft, Gu The multi-disc support claw determined on camshaft is penetrated in spline by adjustable convex axle end, and the lateral wall of support claw is equipped with and spline The tooth that slot matches.