CN101457616B

CN101457616B - Automobile electric sliding door driving mechanism

Info

Publication number: CN101457616B
Application number: CN2008101638692A
Authority: CN
Inventors: 郑安财; 虞军; 俞岳平
Original assignee: Ningbo Xintai Machinery Co Ltd
Current assignee: Ningbo Xintai Machinery Co Ltd
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2012-07-04
Anticipated expiration: 2028-12-19
Also published as: CN101457616A

Abstract

The invention relates to a driving mechanism for a power-operated sliding door of an automobile, comprising an electric motor, a driving assembly composed of a speed reducer and a magnetic clutch, and a transmission mechanism, wherein the transmission mechanism is installed in a hollow swinging arm, one end of the swinging arm is sleeved on an output shaft of the driving assembly and is supported on the base in a rotatable way, the other end of the swinging arm is provided with a rotating shaft, the transmission mechanism is a synchronous transmission mechanism composed of a synchronous pulley and a synchronous belt, a driving synchronous pulley in the synchronous transmission mechanism is installed on the output shaft of the driving assembly, a driven synchronous pulley is installed on the rotating shaft, a friction plate is installed at the inner side of the sliding door, a friction wheel contacting and transmitting the friction plate all the time is also installed on the rotating shaft. By adopting the structure, the transmission mechanism and the driving assembly can be integrated in one module, so that the whole mechanism is compact in structure and small in size and is easy to be installed at the corner at the back of a pedal, in addition, the whole mechanism can not only be installed in an automobile model under development, but also can be refitted under the circumstance that a metal plate of an automobile body of the present vehicle is not changed, thus having the characteristic of wide application.

Description

A kind of driving mechanism of automobile electric sliding door

Technical field

The present invention relates to a kind of open and close system of automobile sliding door, specifically refer to a kind of driving mechanism that is applicable on commercial vehicle or the minibus power-operated sliding door.

Background technology

On commercial vehicle or minibus, be provided with laterally opened middle slide usually in its vehicle body side, and should adopted manual mode to open or close mostly by middle slide.But along with the raising of The development in society and economy and scientific level, this manually operated opening/shutting mode is substituted by the electrodynamic type opening/shutting mode gradually.At present; The electrodynamic type on-off structure of this slide has presented multiple structure; More common have drag-line driving mechanism and a belt-type driving mechanism; Like the one Chinese patent application publication number is that " automatic opening and closing system for vehicle " of CN1651700A just discloses the drag-line drive scheme, and this system comprises motor, worm and worm gear, electromagnetic clutch and two hawsers, and an end of each hawser is connected on the sliding door through the roll wheel assembly of vehicle front side and rear side; After the other end of each hawser is walked around the pulley that reverses that is positioned at the guide rail both ends respectively, repeatedly be wrapped in direction respect to one another in the corresponding ropes groove of drum.When needs are electronic close in during slide, give the electromagnetic clutch coil power supply, make it be in the power transmission state; At this moment, starter motor is through the deceleration of worm and worm gear and the transmission of power of electromagnetic clutch; Make the turning cylinder rotation of drum, and drive the drum rotation, at this moment; Wherein velamen in two hawsers is wrapped on the drum, and another root discharges from drum, thereby middle slide is opened or closed.And when in the needs manual-lock during slide; Then as long as cut off the power supply of electromagnetic clutch coil; In middle slide sliding process, worm and gear and axis of rotation can not rotate, and have just reduced the required power of slide in the manual operation widely; Thereby both overcome the defective of manual mode, improved the flexibility and the simplification of operation again.Above-mentioned belt-type driving mechanism generally is installed in the following hinge inboard of slide; Be connected with the vehicle body panel beating through installing plate; By motor power is provided equally; Hinge slidably reciprocates under driving through gear, belt pulley, belt, belt grip block, following hinge installing plate successively, finally realizes the purpose of electric opening and closing slide.

Adopt above-mentioned two kinds of motorized motions modes,, be convenient for people to operation though can both improve the class of automobile; But because the structure of two kinds of driving mechanisms is comparatively complicated, whole driving mechanism bulky, thereby after installing; Need take space bigger in the car, also be not easy to repacking simultaneously existing vehicle.

Summary of the invention

Technical problem to be solved by this invention is to above-mentioned prior art present situation, and the driving mechanism of a kind of electronic keying that can realize slide equally and compact conformation, automobile electric sliding door that transmission efficiency is high is provided.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: the driving mechanism of this automobile electric sliding door comprises the driving assembly that is positioned on the base and is made up of motor, reducer and electromagnetic clutch and the transmission mechanism that links with the output shaft of this driving assembly; It is characterized in that: described transmission mechanism is installed in the swing arm of hollow; One end of this swing arm is set on the output shaft of said driving assembly and is supported on described base rotationally; The other end of this swing arm is provided with rotating shaft; The synchronous drive mechanism that described transmission mechanism is made up of synchronous pulley and synchronous band; Active synchronization belt wheel in this synchronous drive mechanism is installed on the output shaft of said driving assembly, and the driven synchronous pulley in this synchronous drive mechanism is installed in the said rotating shaft, and; In the slide installed inside friction plate is arranged, the friction pulley of the transmission that contacts with this friction plate all the time also is installed in described rotating shaft; On described base, also be provided with simultaneously first locating part and second locating part; In closing described slide process; Described swing arm and this first locating part offset, and in opening the process of described slide, described swing arm and above-mentioned second locating part offset.

Preferred version of the present invention is that the double-pendulum arms structure is processed in above-mentioned swing arm; Be that swing arm is made up of first swing arm and second swing arm of mutual perforation; Be positioned at the place, an end of above-mentioned first swing arm on the output shaft of said driving assembly; The other end of this first swing arm is hinged through an end of the pivot and second swing arm, and described rotating shaft is arranged on the free end of described second swing arm; On said pivot, be coaxially installed with second, third synchronous pulley, described synchronous band by be nested with first on described active synchronization belt wheel, second synchronous pulley synchronously with and be nested with on described the 3rd synchronous pulley, driven synchronous pulley second synchronously band form.At this moment; Can be fixed with a contiguous block in the rotating shaft; This contiguous block is provided with directive wheel, and described friction plate is sandwiched between described friction pulley and the directive wheel, in slide is closed the door process, arrives like this when moving in the slideway corner generation slide; Through the compressing friction pulley second swing arm is turned round with respect to first swing arm, avoid mutual interference with this; And in slide opens the door process, arrive when moving outside the slideway corner generation slide, can be by means of directive wheel and contiguous block, the pulling swing arm makes second swing arm launch with respect to first swing arm.Promptly in slide opens the door or closes the door process, the friction pulley transmission that contacts with friction plate all the time.Obviously, adopt arm structure, can satisfy friction pulley and move, make slide move more nimbly and freely with moving inside and outside the slide.Simultaneously, also help to stablize the frictional force between friction pulley and the friction plate, so that power stably is provided for slide by means of directive wheel.Certainly, in this programme, also can replace directive wheel with other conventional structure.

In above-mentioned double-pendulum arms structure, described second synchronous pulley and the 3rd synchronous pulley can be processed integral piece, to improve its axiality.

Above-mentioned swing arm also can only be made up of single swing arm; Base can hold through a linear axis and slide on the optical axis this moment, can be fixed with a contiguous block in the same rotating shaft, and this contiguous block is provided with directive wheel; Described friction plate is sandwiched between described friction pulley and the directive wheel; When in slide is closed the door process, arriving the slideway corner like this and taking place to move in the slide, through promoting friction pulley, make base and on parts such as driving assembly, synchronous drive mechanism move toward interior thereupon.And in slide opens the door process, arrive when moving outside the slideway corner generation slide; Can be by means of directive wheel and contiguous block; The pulling base and on parts move laterally, promptly in slide opens the door or closes the door process, the friction pulley transmission that also contacts with friction plate all the time.In this scheme, directive wheel helps to stablize the frictional force between friction pulley and the friction plate equally, so that power stably is provided for slide.Can certainly replace directive wheel with a spring, this spring and linear bearing offset, and have the trend to the slide side shifting all the time to force above-mentioned linear bearing, and such scheme can achieve the above object equally.

As another preferred version of the present invention; Can also be fixed with and the corresponding limiting plate in described friction pulley position in the friction plate end; On this limiting plate, have the convexity that offsets with described friction pulley, this convexity can stop friction pulley to be moved further, in case break away from each other.

Can also further improve above-mentioned preferred version; Promptly can be fixed with the block that matches with described directive wheel, and on described limiting plate, be provided with the auxiliary projection that is positioned at the said protruding outside, when described friction pulley is between convexity and auxiliary projection in the end of friction plate; Described directive wheel and described block are inconsistent; Work as vehicle like this in the process on upper and lower slope, can prevent fully that friction pulley breaks away from friction plate, guarantees vehicle safe driving.

Compared with prior art; Owing to be merely contact friction between friction pulley of the present invention and the friction plate, and both do not adopt the pattern of fixed connection, thereby this friction-type type of drive can be so that transmission mechanism, clutch, reductor and motor be integrated in the module; Make the entire mechanism compact conformation like this; Volume is little, is convenient to be installed in the corner like the foot rest rear portion, and the present invention can not only be installed on the vehicle under development; And can under the situation that the vehicle body panel beating is not done to change, reequip existing vehicle equally, thereby have the wide characteristics of applicability.

Description of drawings

Fig. 1 is installed in the structural representation on the vehicle body for first embodiment of the invention;

Fig. 2 is that the A of Fig. 1 is to structural representation;

Fig. 3 be among Fig. 2 B-B to section of structure;

Fig. 4 is the enlarged diagram of I part among Fig. 3;

Fig. 5 is the enlarged diagram of II part among Fig. 3;

Fig. 6 is the enlarged diagram of III part among Fig. 2;

Fig. 7 for the embodiment of the invention slide be in close the door with door opening state under structural representation;

Fig. 8 for second embodiment of the invention slide be in close the door with door opening state under structural representation;

Fig. 9 be among Fig. 8 C-C to sectional view.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment 1; Like Fig. 1 to Fig. 7, the driving mechanism a of this automobile electric sliding door is installed in the corner at foot rest b rear portion, and it comprises the driving assembly 1 be made up of motor 11, reducer and electromagnetic clutch 12 and the transmission mechanism 2 that links with the output shaft 13 of this driving assembly 1; Wherein, Drive assembly 1 and be installed on the base 3, reducer adopts train of reduction gears, and is integrated with motor 11; Electromagnetic clutch 12 adopts conventional structure, and it includes armature 121 and body 122, and body 122 links with motor 11 output shafts, and armature 121 is fixed on the output shaft 13 that drives assembly.Described transmission mechanism 2 is installed in the swing arm 4 of hollow, and in the present embodiment, swing arm 4 is made up of first swing arm 41 and second swing arm 42 of mutual perforation; Wherein, first swing arm, 41 1 ends are set on the output shaft 13 that drives assembly, and are supported on base 3 rotationally; Here, first swing arm 41 is composited by upper and lower casing, and an end of lower house has installing hole; And has the axle sleeve 31 that raises up on the base; The installing hole of lower house is sleeved on the axle sleeve 31 of base through a pair of copper sheathing 5, and the swing arm 41 of winning can freely be rotated with respect to base 3, and output shaft 13 lower ends that drive assembly are supported in the bearing at axle sleeve place; The upper end is passed behind the upper shell of first swing arm by column 6 supportings that are connected on the base, and this column has the effect that compresses upper and lower casing simultaneously; The other end of first swing arm 41 then is hinged through an end of the pivot 43 and second swing arm 42, and the free end of second swing arm 42 is provided with rotating shaft 44.

Above-mentioned transmission mechanism 2 is synchronous pulley and the synchronous drive mechanism of being with composition synchronously; Synchronous pulley by the active synchronization belt wheel 21 that is installed in the output shaft 13 that drives assembly, coaxially be installed in second synchronous pulley 22, the 3rd synchronous pulley 23 on the pivot 43 and the driven synchronous pulley 24 that is installed in the rotating shaft 44 is formed; Here; Second synchronous pulley 22 and the 3rd synchronous pulley 23 are processed integral piece; Be the duplex structure, synchronously band is then by being nested with at first on active synchronization belt wheel, second synchronous pulley synchronously with 25 and being nested with and on described the 3rd synchronous pulley, driven synchronous pulley, second being with 26 to form synchronously.

Part also is installed in above-mentioned rotating shaft 44 exposes to the friction pulley 7 of second swing arm, and the friction plate 8 with the corresponding Contact Transmission of this friction pulley is installed in described slide c lower inside.Like this when motor 11 and electromagnetic clutch 12 are all switched on; The armature 121 of electromagnetic clutch 12 and body 122 adhesive mutually; Motor output shaft rotates; Body through electromagnetic clutch, armature drive and drive assembly output shaft 13 and rotate, thereupon through active synchronization belt wheel 21, first be with synchronously 25, second synchronous pulley 22, the 3rd synchronous pulley 23 and second be with synchronously 26 and driven synchronous pulley 24 drive friction pulleys 7 and rotate, promote slide c through friction plate 8 then.At this moment, slide c can move in order successfully to promote slide c 4 one reaction forces of swing arm; On base 3, also be provided with first locating part 32 and second locating part 33, here, first, second locating part adopts the structure of block; Promptly ought close in the slide process; First swing arm 41 offsets with this first locating part 32, and in opening the process of slide, first swing arm 41 offsets with above-mentioned second locating part 33.

In slide c moving process; For a power stably is provided to slide; Also be fixed with a contiguous block 45 in the rotating shaft 44 outside second swing arm; This contiguous block 45 is provided with directive wheel 9, and above-mentioned friction plate 8 is sandwiched between friction pulley 7 and the directive wheel 9, makes between friction pulley and the friction plate to keep stable frictional force.

In order to prevent that friction pulley 7 breaks away from friction plate 8; Friction plate 8 ends also are fixed with and the corresponding limiting plate 10 in described friction pulley position, see also Fig. 6, on this limiting plate, have protruding 101; When friction pulley moved to the end of friction plate, friction pulley and this convexity offseted.But consider when vehicle is in upper and lower slope; Worry that friction pulley breaks away from friction plate fully; Also be fixed with the block 20 that matches with directive wheel in the end of friction plate, set up an auxiliary projection 102 in the protruding outside of limiting plate simultaneously, when friction pulley is between two convexities; Directive wheel 9 and described block 20 are inconsistent, come to stop effectively the further motion of friction pulley with this.

The encoder 30 of routine techniques also is installed in second swing arm 42, and this encoder is with 26 to link through encoder belt wheel 40 and second synchronously, sees also Fig. 3.In system's running, through the encoder stroke and the speed of supervisory control system running at any time, and check and correction open and close door position.

During use,, give driving force to the right of slide through friction plate when friction pulley rotates; To begin the action of closing the door, at this moment, friction plate can be to promotion left of friction pulley; As shown in Figure 7, promote swing arm thereupon and rotate counterclockwise around base, inconsistent until the swing arm and first locating part; Swing arm can't be rotated further, structure shown in solid line among Fig. 7.After this, the slide action of can successfully closing the door, when slide arrived the slideway corner and carries out half lock, swing arm can be turned round again clockwise, shown in the arrow among Fig. 7.

In like manner, when needs opened the door, the motor counter-rotating was also reversed friction pulley; Give through friction plate and give driving force left of slide, to begin the action of opening the door, at this moment; Friction plate can promote swing arm thereupon and clockwise rotate around base promotion to the right of friction pulley, and is inconsistent until the swing arm and second locating part; Swing arm can't be rotated further, and the slide action of just can successfully opening the door after this sees also structure shown in the dotted line among Fig. 7.

When the motor outage, after the electromagnetic clutch dead electricity, above-mentioned slide just can adopt manual mode to open or close action.

Embodiment two; Like Fig. 8 and shown in Figure 9, itself and the above-mentioned first embodiment difference are: single swing arm structure is only adopted in swing arm, has cancelled promptly that second swing arm, second is with synchronously, second, second synchronous pulley; While is in order to ensure the smooth rotation of swing arm; Described base 3 is fixed in linear bearing 90 through seat board, and linear bearing 90 slides on the optical axis 70, and optical axis 70 is bearing in the bearing 80; And bearing be provided with front limit piece 60, the back limited block 100, to carry out spacing to the linear bearing on the optical axis.During installation, bearing 80 is fixed on the vehicle body panel beating, base is slidably reciprocated with respect to slide by the direction of arrow as shown in Figure 8.Adopt such scheme, make overall structure simpler, volume is also littler.

Claims

1. the driving mechanism of an automobile electric sliding door; Comprise the driving assembly (1) that is positioned at that base (3) is gone up and forms by motor (11), reducer and electromagnetic clutch (12) and the transmission mechanism (2) that links with the output shaft (13) of this driving assembly; It is characterized in that: described transmission mechanism (2) is installed in the swing arm (4) of hollow; One end of this swing arm (4) is set in the output shaft (13) of said driving assembly and goes up and be supported on rotationally described base (3); The other end of this swing arm is provided with rotating shaft (44), the synchronous drive mechanism that described transmission mechanism is made up of synchronous pulley and synchronous band, and the active synchronization belt wheel (21) in this synchronous drive mechanism is installed on the output shaft (13) of said driving assembly; Driven synchronous pulley (24) in this synchronous drive mechanism is installed in the said rotating shaft; And, in slide (c) installed inside friction plate (8) is arranged, the friction pulley (7) of the transmission that contacts with this friction plate (8) all the time also is installed in described rotating shaft (44); On described base, also be provided with simultaneously first locating part (32) and second locating part (33); In closing described slide process; Described swing arm and this first locating part offset, and in opening the process of described slide, described swing arm and above-mentioned second locating part offset.

2. the driving mechanism of automobile electric sliding door according to claim 1; It is characterized in that: said swing arm is made up of first swing arm (41) and second swing arm (42) of mutual perforation; The output shaft of said driving assembly (13) is positioned at the place, an end of above-mentioned first swing arm; The other end of this first swing arm is hinged through the end of pivot (43) with second swing arm, and described rotating shaft (44) is arranged on the free end of described second swing arm (42); On said pivot, be coaxially installed with second, third synchronous pulley (22,23), described synchronous band by be nested with first on described active synchronization belt wheel, second synchronous pulley be with (25) synchronously and be nested with on described the 3rd synchronous pulley, driven synchronous pulley second synchronously the band (26) form.

3. the driving mechanism of automobile electric sliding door according to claim 2, it is characterized in that: described second synchronous pulley (22) and the 3rd synchronous pulley (23) are processed integral piece.

4. the driving mechanism of automobile electric sliding door according to claim 1, it is characterized in that: described swing arm is merely one, and described base (3) holds (90) through a linear axis and slidably reciprocates on optical axis (70) with respect to slide.

5. according to the driving mechanism of claim 1 or 2 or 3 or 4 described automobile electric sliding doors; It is characterized in that: be fixed with a contiguous block (45) in the described rotating shaft (44); This contiguous block is provided with directive wheel (9), and described friction plate (8) is sandwiched between described friction pulley (7) and the directive wheel (9).

6. the driving mechanism of automobile electric sliding door according to claim 5; It is characterized in that: described friction plate (8) end also is fixed with and the corresponding limiting plate in described friction pulley (7) position (10), on this limiting plate, has the convexity (101) that offsets with described friction pulley.

7. the driving mechanism of automobile electric sliding door according to claim 6; It is characterized in that: the end of described friction plate is fixed with the block (20) that matches with described directive wheel; And on described limiting plate, be provided with the auxiliary projection (102) that is positioned at the said protruding outside; When described friction pulley was positioned between convexity (101) and the auxiliary projection (102), described directive wheel (9) was inconsistent with described block (20).