CN110080647B

CN110080647B - Driving mechanism for electric outward swinging door

Info

Publication number: CN110080647B
Application number: CN201910331537.9A
Authority: CN
Inventors: 位云成; 冯家晟; 戴祖信; 贡智兵; 葛汉青; 黄东盛; 程梦华
Original assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Current assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2024-03-22
Anticipated expiration: 2039-04-24
Also published as: CN110080647A

Abstract

The invention discloses a driving mechanism for an electric outward swing door, which comprises a driving assembly, wherein the driving assembly is connected with a reduction gearbox assembly, and the reduction gearbox assembly is provided with an output shaft for connecting a rotating arm assembly of a door system; the driving assembly comprises a motor support and a lower mounting plate, the motor support is provided with a driving motor assembly and a lock catch mounting plate assembly, the lower mounting plate is provided with an unlocking support and a fixed unlocking block, the unlocking support is connected with a resetting part, the lower mounting plate is connected with the motor support, and the motor support can rotate relative to the lower mounting plate. The invention is mainly used in a passenger car door system, has the advantages of high obstacle detection sensitivity, strong capability of opening and closing a door on a steep slope, compact structure, convenient assembly, self-locking function and the like, and has high safety.

Description

Driving mechanism for electric outward swinging door

Technical Field

The invention relates to the field of traffic equipment, in particular to a driving mechanism for an electric outward swing door.

Background

The existing outward swinging door has two modes of pneumatic and electric, is mainly applied to a passenger car door system, and has the following defects: 1. the pneumatic outward swinging door is not stable under the influence of an air source, the noise is large in the door opening and closing process, the clamping prevention function is easy to lose efficacy, and certain potential safety hazards exist; 2. the cylinder is driven by converting electricity into gas and then converting the gas into kinetic energy, so that certain energy waste exists; 3. the problem that the door cannot be normally opened and closed under the steep slope working condition affects the safety of passengers.

Disclosure of Invention

The invention aims to: in order to overcome the defects in the prior art, the invention provides a driving mechanism for an electric outward swinging door.

The technical scheme is as follows: in order to solve the technical problems, the driving mechanism for the electric outward swing door comprises a driving assembly and a reduction gearbox assembly, wherein the driving assembly is fixedly connected with the reduction gearbox assembly; the driving assembly comprises a motor support and a lower mounting plate, the motor support is provided with a driving motor assembly and a lock catch mounting plate assembly, the lower mounting plate is provided with an unlocking support and a fixed unlocking block, the unlocking support is connected with a resetting part, the lower mounting plate is connected with the motor support, and the motor support can rotate relative to the lower mounting plate.

Wherein, set up big spacer ring on the output shaft of reducing gear box subassembly, be provided with spacing subassembly and switch module on the upper plate of reducing gear box subassembly.

The switch assembly comprises a switch mounting plate, and the switch mounting plate is provided with a relevant in-place switch, a lock in-place switch and a steel ball.

The driving motor assembly comprises a driving motor, a motor gear and a deep groove ball bearing are arranged on an output shaft of the driving motor, and a gear spacer is arranged between the deep groove ball bearing and the motor gear.

The driving motor of the driving motor assembly is a worm gear speed reducing motor, and the lead angle of the meshing of the worm gear and the worm is smaller than 3.5 degrees.

The unlocking component is connected with the lower mounting plate through a shaft sleeve, and the unlocking bracket is sleeved on the shaft sleeve and can freely rotate around the shaft sleeve; one end of the fixed unlocking block is fixed on the lower mounting plate by a screw, and the other end of the fixed unlocking block penetrates through the special-shaped hole of the motor bracket to limit the swing range of the motor bracket and simultaneously provide a supporting function.

The reduction gearbox assembly comprises a reduction gearbox body, an output shaft is arranged in the gearbox body, a secondary large gear is arranged on the output shaft, a secondary small gear and a large gear which are coaxially arranged are also arranged in the reduction gearbox body, and the secondary small gear is meshed with the secondary large gear; a pressing plate is also arranged in the reduction gearbox.

Wherein, the output shaft of reducing gear box subassembly is spline screw shaft.

Wherein, reset part is extension spring, and its one end cover is on the mounting panel down, and one end is connected with the unblock support.

Wherein, unlocking support connects wire rope.

The beneficial effects are that: the invention has the following beneficial effects:

the driving mechanism for the electric outward swing door is mainly used in a passenger car door system, has the advantages of few parts, compact structure, convenience in assembly, self-locking function and the like, is high in safety, can solve the defects that the existing outward swing door is unstable in operation and easy to lose efficacy in clamping prevention function, is more energy-saving compared with a pneumatic inward swing door, is low in noise, can improve riding comfort, can solve the problem that the door cannot be normally opened and closed in a steep slope state of the existing outward swing door, and is more reliable in door opening and closing function under special working conditions compared with the existing outward swing door.

Drawings

FIG. 1 is a schematic view of the structure of the present invention applied to an electric swing door;

FIG. 2 is a schematic diagram of a driving mechanism;

FIG. 3 is a schematic diagram of a driving assembly;

FIG. 4 is a schematic diagram of an unlocking assembly;

FIG. 5 is a schematic view of the unlocking bracket and reset feature on the mounting plate in a normal operating condition;

FIG. 6 is a schematic view of the unlocking bracket and reset feature on the mounting plate in a manual unlocked state;

FIG. 7 is a schematic structural view of a reduction gearbox assembly;

FIG. 8 is a schematic diagram of a drive motor assembly;

FIG. 9 is a schematic structural view of a switch assembly;

FIG. 10 is a schematic structural view of a swivel arm assembly coupled to a drive assembly output shaft;

FIG. 11 is a schematic structural view of an unlocking assembly;

FIG. 12 is a schematic structural view of a lock stop mounting plate assembly;

fig. 13 is a schematic structural view of the output shaft of the drive assembly mated with the swivel arm assembly.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 2, the invention comprises a driving assembly 14, a reduction gearbox assembly 15, a mounting backboard 16, a switch assembly 17, a large space ring 18, a limiting assembly 19 and a gate controller 20. The driving assembly 14 is connected with the reduction gearbox assembly 15 through screws; the output shaft 30 of the reduction gearbox assembly 15 is provided with a large space ring 18 for supporting the rotating arm assembly 2; the limiting component 19 and the switch component 17 are respectively arranged on an upper bottom plate 31 of the reduction gearbox component 15 through screws; the reduction gearbox assembly 15 is connected to the mounting backplate 16 by screws. The door system realizes the functions of opening, closing, preventing clamping and the like of the door system through the door controller 20.

As shown in fig. 3, the driving assembly 14 includes a driving motor assembly 21, a lower mounting plate 22, a reset member 23, a fixed unlocking block 24, an unlocking assembly 25, a lock gear mounting plate assembly 26, and a motor bracket 27. The driving motor assembly 21 and the lock catch mounting plate assembly 26 are respectively mounted on the motor bracket 27 through screws; the motor bracket 27 is sleeved on the pin shaft of the lower mounting plate 22 through clearance fit, and the end nuts are tightly combined and can freely rotate around the pin shaft. The return member 23 may employ a tension spring.

As shown in fig. 4, the unlocking component 25 is connected with the lower mounting plate 22 through a shaft sleeve 48, and is tightly screwed, and an unlocking bracket 49 is sleeved on the shaft sleeve 48 and can freely rotate around the shaft sleeve 48; one end of the reset component 23 is sleeved on the lower mounting plate 23, and the other end is sleeved on a screw at the tail end of the unlocking component 25; one end of the fixed unlocking block 24 is fixed on the lower mounting plate 23 by a screw, and the other end passes through a special-shaped hole of the motor bracket 27 to limit the swinging range of the motor bracket 27 and provide a supporting function.

As shown in fig. 5, in the normal working state, the unlocking bracket 49 is tangent to the deep groove ball bearing 42 under the action of the resetting component 23, and pushes the motor gear 44 to be meshed with the large gear 35.

As shown in fig. 6, in an emergency situation, the emergency unlocking device is operated to pull the steel wire rope to disengage the unlocking bracket 49 from the deep groove ball bearing 42, and the unlocking bracket 49 pushes the lock catch mounting plate assembly 26 to rotate the motor bracket 27 around the pin shaft, so that the motor gear 44 is disengaged from the large gear 35.

As shown in fig. 7, the reduction box assembly 15 includes a reduction box 28, a deep groove ball bearing 29, an output shaft 30, an upper base plate 31, a deep groove ball bearing 32, a pressing plate 33, a secondary pinion 34, a bull gear 35, and a secondary bull gear 36. The output shaft 30 is arranged on the reduction gearbox 28 through a deep groove ball bearing 29 and is connected with a secondary large gear 36 through a rectangular spline; the secondary pinion 34 is mounted on the reduction gearbox 28 through a deep groove ball bearing 32 and is meshed with a secondary bull gear 36; the large gear 35 is fixedly connected with the secondary pinion 34 through a screw; the pressure plate 33 is connected to the reduction gearbox 28 by screws, providing a reinforcing support for the connection of the reduction gearbox 28 to the mounting backplate 16.

As shown in fig. 8, the drive motor assembly 21 includes a drive motor 41, a deep groove ball bearing 42, a gear spacer 43, and a motor gear 44. The deep groove ball bearing 42, the gear spacer 43, and the motor gear 44 are sequentially fixed to the output shaft of the driving motor 41.

As shown in fig. 9, the switch assembly 17 includes an off-position switch 37, a lock-in-position switch 38, a steel ball 39, and a switch mounting plate 40. The on-position switch 37 and the lock-position switch 38 are respectively arranged on the switch mounting plate 40 through screws; the steel balls 39 are mounted in holes in the switch mounting plate 40 and contact the on-position switch 37 and the off-position switch 38, respectively.

As shown in fig. 11, the unlocking assembly 25 includes a sleeve 48, an unlocking bracket 49. The unlocking bracket 49 is arranged on the shaft sleeve 48 through a screw, the unlocking bracket 49 and the shaft sleeve 48 are in clearance fit, and the unlocking bracket 49 can rotate freely around the shaft sleeve 48.

As shown in fig. 12, the lock stop mounting plate assembly 26 includes a lock stop mounting plate 50, and an inner hexagonal pyramid end set screw 51, which are connected by screws.

As shown in fig. 13, the driving mechanism 1 of the present invention is connected with the upright post assembly 46 in the swivel arm assembly 2 through the output shaft 30, and screw transmission is arranged between the upright post assembly and the upright post assembly.

As shown in fig. 1, in use, the present invention is connected to an electrically powered swing door. The invention is fixed on a car body through a mounting backboard 16, and is connected with a rotating arm assembly 2 on a door leaf 4 through an output shaft 30, wherein the output shaft 30 is a spline screw shaft; the top bracket component 3 is fixedly connected with the vehicle body through a screw and is in clearance fit with the upright post 46 of the rotating arm component 2, so as to provide guiding and limiting effects for lifting the door leaf 4; the door leaf 4 is provided with an upper bracket 5, a lower bracket 6 and a balance bracket 11, and is hinged with the rotating arm assembly 2 through the upper bracket 5 and the lower bracket 6 and is hinged with the balance rod assembly 10 through the balance bracket 11; the stepping lower balance bracket 12 is fixedly connected with the vehicle body through a screw and hinged with the balance bar assembly 10.

As shown in fig. 10, the electric swing door system includes a swing arm assembly 2, and the swing arm assembly 2 includes a switch trigger ring 45, a column assembly 46, and a swing arm 47. The switch trigger ring 45 is fixedly connected with the upright post assembly 46 through self-contained threads; the swivel arm 47 is fixedly connected to the column assembly 46 by a screw.

The working principle of the invention is as follows:

and (3) door opening:

1. when the door is in the closed state, the motor gear 44 is meshed with the large gear 35; the motor gear 44 rotates positively to drive the engaged large gear 35, so as to drive the secondary pinion 34 fixedly connected with the large gear 35 to rotate, then drive the secondary large gear 36 engaged with the secondary pinion 34, and finally drive the output shaft 30 connected with the secondary large gear 36 through rectangular splines to rotate;

2. the output shaft 30 rotates to drive the rotating arm assembly 2 to move downwards until the rotating arm assembly 2 stops descending after contacting with the large space ring 18, and the axial freedom degree of the spiral transmission is limited, so that the rotation is executed to drive the rotating arm assembly 2 to rotate;

3. the door leaf 4 performs a door opening operation along with the rotation of the swing arm assembly 2.

4. After the door 4 is opened to a certain position, the door controller 20 controls the driving motor 41 to stop rotating and automatically lock, and the door closing operation is completed.

Closing a door:

1. when the door is in an open state, the motor gear 44 is meshed with the large gear 35; the motor gear 44 rotates reversely to drive the meshed large gear 35, so as to drive the secondary pinion 34 fixedly connected with the large gear 35 to rotate, then drive the secondary large gear 36 meshed with the secondary pinion 34, and finally drive the output shaft 30 connected with the secondary large gear 36 through rectangular splines to rotate;

2. the output shaft 30 rotates to drive the rotating arm assembly 2 to rotate until the door leaf 4 is closed to a specified position, the switch trigger ring 45 triggers the closing switch 37 in the switch assembly 17, at the moment, the rotation freedom degree of the screw transmission pair is limited, linear motion is performed, the rotating arm assembly 2 and the door leaf 4 are pushed to be lifted upwards, and the door leaf 4 performs locking action;

3. after the door lock is in place, the switch trigger ring 45 triggers the lock in place switch 38 in the switch assembly, and the door controller 20 controls the driving motor 41 to stop rotating and automatically lock, so as to complete the door closing action.

Anti-pinch function:

clamping an obstacle in the opening and closing process, changing the current of a motor, and judging the door control system according to the current and the door leaf position to perform anti-clamping action; the magnitude of the clamping-preventing force is controlled according to the change of the current, so that small-size obstacle detection is realized, passengers are effectively prevented from being injured by clamping, and the safety is improved;

and (3) locking in the whole process:

the driving motor component 21 is a worm gear speed reducing motor, the lead angle of the meshing of the worm gear and the worm is smaller than 3.5 degrees, the self-locking function is realized, and the automatic locking can be realized at any position in the opening and closing process;

manual door opening emergency unlocking:

1. when the door is in a closed state, the emergency unlocking device is operated to pull the steel wire rope, so that the unlocking bracket 49 is separated from the deep groove ball bearing 42 on the output shaft of the driving motor 41, the unlocking bracket 49 pushes the lock catch mounting plate assembly 26 fixedly connected with the motor bracket 27, and the motor bracket 27 is further rotated around the pin shaft on the lower mounting plate 22, and the motor gear 44 is separated from the large gear 35 to be in a disengaged state;

2. the door opening operation can be completed by manually operating the door leaf 4.

Manual door closing:

1. when the door is in an open state, the emergency unlocking device is operated to pull the steel wire rope, so that the unlocking bracket 49 is separated from the deep groove ball bearing 42 on the output shaft of the driving motor 41, the unlocking bracket 49 pushes the lock catch mounting plate assembly 26 fixedly connected with the motor bracket 27, and the motor bracket 27 is further rotated around the pin shaft on the lower mounting plate 22, and the motor gear 44 is separated from the large gear 35 to be in a disengaged state;

2. the door closing operation can be completed by manually operating the door leaf 4.

The invention has the advantages that:

1. the intelligent current and door leaf position self-judging extrusion-preventing mode is used for preventing the door from being clamped to an obstacle in the opening and closing processes, the current of the motor changes, the door control system judges according to the current change, the clamping-preventing action is performed, the clamping force is controlled according to the current change, small-size obstacle detection is realized, passengers are effectively prevented from being clamped, and safety is improved.

2. The driving mechanism is provided with an intelligent limiting device, so that the door leaf lifting action is automatically judged, the door closing and opening functions are achieved under the steep slope state, the limiting device is of split type design, the trigger ring and the pin shaft are respectively installed on different supports, end face contact is achieved through the boss with the taper, and the trigger ring is provided with a notch in the circumferential direction.

3. In the driving mechanism, the unlocking mechanism realizes the manual unlocking and self-resetting functions through the swing rod cam structure, the locking structure and the tension spring. The unlocking bracket is separated from the motor bearing through the swing rod cam mechanism, the manual unlocking of the mechanism is realized, and the automatic resetting of the unlocking mechanism is realized through the tension spring.

4. The driving mechanism adopts a modularized design, has few parts, compact structure, convenient assembly and good adaptability.

5. The worm and gear reducer has a self-locking function, can ensure the locking reliability and has good mechanism stability.

The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims

1. The utility model provides an electronic driving mechanism for swing door which characterized in that: comprises a driving component (14) and a reduction gearbox component (15), wherein the driving component (14) is fixedly connected with the reduction gearbox component (15); the driving assembly (14) comprises a motor bracket (27) and a lower mounting plate (22), the motor bracket (27) is provided with a driving motor assembly (21) and a locking mounting plate assembly (26), the lower mounting plate (22) is provided with an unlocking bracket (49) and a fixed unlocking block (24), the unlocking bracket (49) is connected with a resetting component (23), the lower mounting plate (22) is connected with the motor bracket (27), and the motor bracket (27) can rotate relative to the lower mounting plate (22); the output shaft (30) of the reduction gearbox assembly (15) is provided with a large space ring (18), and the upper bottom plate (31) of the reduction gearbox assembly (15) is provided with a limiting assembly (19) and a switch assembly (17); the switch assembly (17) comprises a switch mounting plate (40), and a related in-place switch (37), a lock in-place switch (38) and a steel ball (39) are arranged on the switch mounting plate (40); the driving motor assembly (22) comprises a driving motor (41), a motor gear (44) and a deep groove ball bearing (42) are arranged on an output shaft of the driving motor (41), and a gear spacer ring (43) is arranged between the deep groove ball bearing (42) and the motor gear (44); the device also comprises a rotating arm assembly (2), wherein the rotating arm assembly (2) comprises a switch trigger ring (45), a stand column assembly (46) and a rotating arm (47); the switch trigger ring (45) is fixedly connected with the upright post component (46) through a self-contained thread; the rotating arm (47) is fixedly connected with the upright post assembly (46) through a screw.

2. The driving mechanism for an electric swing door according to claim 1, wherein: the driving motor (41) of the driving motor assembly (21) is a worm gear motor, and the lead angle of the engagement of the worm gear and the worm is smaller than 3.5 degrees.

3. The driving mechanism for an electric swing door according to claim 1, wherein: the unlocking component (25) is connected with the lower mounting plate (22) through a shaft sleeve (48), and the unlocking bracket (49) is sleeved on the shaft sleeve (48) and can freely rotate around the shaft sleeve (48); one end of the fixed unlocking block (24) is fixed on the lower mounting plate (23) by a screw, and the other end of the fixed unlocking block penetrates through the special-shaped hole of the motor bracket (27) to limit the swinging range of the motor bracket (27) and simultaneously provide a supporting function.

4. The driving mechanism for an electric swing door according to claim 1, wherein: the reduction gearbox assembly (15) comprises a reduction gearbox body (28), an output shaft (30) is arranged in the gearbox body, a secondary large gear (36) is arranged on the output shaft (30), the reduction gearbox body (28) is also provided with a secondary small gear (34) and a large gear (35) which are coaxially arranged, and the secondary small gear (34) is meshed with the secondary large gear (36); a pressing plate (33) is also arranged in the reduction gearbox body (28).

5. The driving mechanism for an electric swing door according to claim 1, wherein: an output shaft (30) of the reduction gearbox assembly (15) is a spline screw shaft.

6. The driving mechanism for an electric swing door according to claim 1, wherein: the reset component (23) is an extension spring, one end of the extension spring is sleeved on the lower mounting plate (23), and the other end of the extension spring is connected with the unlocking bracket (49).

7. The driving mechanism for an electric swing door according to claim 1, wherein: the unlocking bracket (49) is connected with the steel wire rope.