CN115325107A

CN115325107A - Trackless side sliding door and reduction gearbox thereof

Info

Publication number: CN115325107A
Application number: CN202210903258.7A
Authority: CN
Inventors: 李泽荣; 龙帅; 陈进
Original assignee: Guangdong Dongjian Automobile Technology Co Ltd; Guangdong Dongjian Automobile Intelligent System Co Ltd
Current assignee: Guangdong Dongjian Automobile Technology Co Ltd; Guangdong Dongjian Automobile Intelligent System Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-11

Abstract

The invention relates to the technical field of trackless side sliding doors, and discloses a trackless side sliding door and a reduction gearbox thereof. The trackless side sliding door and the reduction gearbox thereof can simultaneously realize manual side sliding door and electric side sliding door and realize emergency stop in the state of the electric side sliding door.

Description

Trackless side sliding door and reduction gearbox thereof

Technical Field

The invention relates to the technical field of trackless side sliding doors, in particular to a trackless side sliding door and a reduction gearbox thereof.

Background

The side sliding doors are generally divided into manual side sliding doors and electric side sliding doors, the latter are relatively more expensive to manufacture and are generally more common on middle and high end MPV vehicles, i.e. the doors for the rear passengers to get in and out of the carriage are electrically opened or closed in a side sliding manner. When a passenger pulls down the door handle outside the vehicle, the door can slide open electrically, and after the passenger gets on the vehicle, the passenger pulls down the inside door handle in the vehicle, so that the door can be closed by himself.

At present, the trackless side sliding door cannot meet the requirements of a manual side sliding door and an electric side sliding door at the same time, and emergency stop cannot be realized under the state of the electric side sliding door.

Disclosure of Invention

The purpose of the invention is: the trackless side sliding door and the reduction gearbox thereof can realize manual side sliding door and electric side sliding door at the same time and realize emergency stop in the state of the electric side sliding door.

In order to achieve the purpose, the invention provides a reduction gearbox of a trackless side sliding door, which comprises a reduction gearbox shell and a controller, wherein a driving part, a lower transmission mechanism, a brake and an upper transmission mechanism are sequentially arranged in the reduction gearbox shell from bottom to top, the driving part is connected with the lower transmission mechanism in a driving way, the lower transmission mechanism is connected with the brake in a driving way, the brake is connected with the upper transmission mechanism in a driving way, the upper transmission mechanism is connected with an upper transmission cover in a driving way, an output transmission shaft extends upwards from the upper end of the upper transmission cover, and the brake and the driving part are respectively connected with the controller in a communication way.

Preferably, the driving part, the lower transmission mechanism, the brake, the upper transmission mechanism and the transmission upper cover are coaxially mounted in sequence.

Preferably, the upper transmission mechanism comprises a sun gear, a planetary gear and an outer gear ring, the sun gear is in transmission connection with an output shaft of the brake, the planetary gear is installed between the sun gear and the outer gear ring, the planetary gear is in meshing transmission with the sun gear and the outer gear ring respectively, the outer gear ring is fixed on the reduction box shell, and the planetary gear is in transmission connection with the transmission upper cover.

Preferably, the planetary gear is coaxially provided with a transmission hole, the bottom surface of the transmission upper cover extends downwards to form a transmission column, and the transmission column is rotatably mounted in the transmission hole.

Preferably, the number of the planetary gears is multiple, and the transmission columns are arranged corresponding to the number and positions of the transmission holes.

As a preferred scheme, a central hole is axially formed in the sun gear, an inner spline is arranged on the inner wall of the central hole, a braking transmission shaft is rotatably arranged at the upper end of the brake, the braking transmission shaft is mounted with the central hole, and an outer spline in transmission fit with the inner spline is arranged on the periphery of the braking transmission shaft.

Preferably, the brake is a magnetic powder brake.

Preferably, the inner wall of the outer gear ring is provided with inner teeth meshed with the planetary gear, the outer wall of the outer gear ring is provided with a fixing groove sunken in the radial direction, the inner wall of the gearbox shell is provided with a fixing strip protruding in the radial direction, and the fixing strip is clamped in the fixing groove.

Preferably, the reduction gearbox shell comprises a first shell, a second shell and a third shell which are arranged from bottom to top, the first shell, the second shell and the third shell are coaxially arranged, the first shell, the second shell and the third shell are communicated with each other to form an installation channel, the driving part, the lower transmission mechanism, the brake and the upper transmission mechanism are in transmission connection through the installation channel, the driving part and the lower transmission mechanism are installed in the first shell, the brake is installed on the second shell, the upper transmission mechanism is installed on the third shell, and the transmission upper cover is installed at the upper end of the third shell.

A trackless side sliding door comprises a side sliding door body and a reduction box, wherein a transmission upper cover is in transmission connection with the side sliding door body.

Compared with the prior art, the trackless side sliding door and the reduction gearbox thereof have the advantages that: the output transmission shaft is in transmission connection with the side sliding door, the lower transmission mechanism is driven to transmit through the driving part, and the lower transmission mechanism, the brake, the upper transmission mechanism and the transmission upper cover are in transmission connection in sequence, so that the opening and closing of the vehicle door are realized. The brake and the driving part are respectively in communication connection with the controller, and the side sliding door is stopped under the control of the controller under the condition that the side sliding door is needed. The driving part is in transmission connection with the lower transmission mechanism, the brake is connected with the lower driving mechanism, the driving part then drives the brake immediately, the brake can rotate freely under the condition of no power on, and the driving part realizes the electric side sliding door mode through the electric transmission of the side sliding door. Under the condition that drive division and stopper are not all electrified, can manually open the door or close the door, simultaneously in the environment that has the slope, the stopper is inoperative, and the door can freely swing, realizes the manual mode of sliding the door.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic view of a split structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of the connection structure of the driving part, the lower transmission mechanism and the brake in the embodiment of the invention.

Fig. 4 is a schematic structural diagram of an upper transmission mechanism according to an embodiment of the present invention.

In the figure:

10. a gearbox housing; 11. a first housing; 12. a second housing; 13. a third housing;

20. a drive section; 21. a lower transmission mechanism; 22. a brake; 23. braking the transmission shaft;

30. an upper transmission mechanism; 31. a sun gear; 32. a central bore; 33. a planetary gear; 34. a drive bore; 35. an outer ring gear; 36. fixing grooves;

40. a transmission upper cover; 41. an output drive shaft; 42. a drive post.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. used herein are used to indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used broadly, and for example, the terms "connected," "connected," or "fixed" may be fixed, or detachably connected, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, a reduction gearbox of a trackless side sliding door according to a preferred embodiment of the present invention includes a reduction gearbox housing 10 and a controller, a driving part 20, a lower transmission mechanism 21, a brake 22, and an upper transmission mechanism 30 are sequentially installed in the reduction gearbox housing 10 from bottom to top, the driving part 20 is in driving connection with the lower transmission mechanism 21, the lower transmission mechanism 21 is in driving connection with the brake 22, the brake 22 is in driving connection with the upper transmission mechanism 30, the upper transmission mechanism 30 is in driving connection with a transmission upper cover 40, an output transmission shaft 41 extends upward from the upper end of the transmission upper cover 40, and the brake 22 and the driving part 20 are respectively in communication connection with the controller.

In the reduction box of the trackless side sliding door, the output transmission shaft 41 is in transmission connection with the side sliding door, the lower transmission mechanism 21 is driven to transmit through the driving part 20, and the lower transmission mechanism 21, the brake 22, the upper transmission mechanism 30 and the transmission upper cover 40 are in transmission connection in sequence, so that the opening and closing of the vehicle door are realized. The brake 22 and the drive 20 are each communicatively connected to a controller, under the control of which the side door is stopped if necessary. The driving part 20 is connected with the lower transmission mechanism 21 in a transmission manner, the brake 22 is connected with the lower driving mechanism, the driving part 20 then drives the brake 22, the brake 22 can rotate freely under the condition of no power-on, and the driving part 20 realizes the electric side sliding door mode through the electric transmission of the side sliding door. When neither the drive unit 20 nor the brake 22 is energized, the door can be manually opened or closed, and in a sloping environment, the brake 22 does not work, and the door can freely swing, thereby realizing a manual side sliding door mode.

As an embodiment, the driving unit 20 is a motor.

As one embodiment, the lower transmission mechanism 21 is a worm gear and worm transmission, the worm gear is in transmission connection with the output shaft of the driving portion 20, the worm gear is in transmission connection with the worm, and the worm is in transmission connection with the brake 22.

As one example, the brake 22 is connected to the lower transmission mechanism 21 by a spline.

Further, as shown in fig. 2 to 3, the driving portion 20, the lower transmission mechanism 21, the brake 22, the upper transmission mechanism 30 and the transmission upper cover 40 are coaxially installed in sequence, so that the whole reduction gearbox is in a straight structure, the whole shape is regular, the planning of an installation space is facilitated, and the installation convenience is improved.

Further, as shown in fig. 4, the upper transmission mechanism 30 includes a sun gear 31, a planet gear 33 and an outer ring gear 35, the sun gear 31 is in transmission connection with the output shaft of the brake 22, the planet gear 33 is installed between the sun gear 31 and the outer ring gear 35, the planet gear 33 is respectively in meshing transmission with the sun gear 31 and the outer ring gear 35, the outer ring gear 35 is fixed on the reduction gearbox housing 10, and the planet gear 33 is in transmission connection with the transmission upper cover 40. The output shaft of the brake 22 is connected to the sun gear 31 in a transmission mode, the brake 22 drives the sun gear 31 to rotate, the sun gear 31 drives the planetary gear 33 to rotate, the planetary gear 33 drives the transmission upper cover 40 to rotate, opening and closing of the side sliding door are further achieved, the output torque of the driving portion 20 after transmission is improved through the speed reduction transmission of the upper transmission mechanism 30, and the mechanical requirement is met.

Further, as shown in fig. 4, the planetary gear 33 is coaxially provided with a transmission hole 34, a transmission column 42 is formed by extending downward the bottom surface of the transmission upper cover 40, the transmission column 42 is rotatably installed in the transmission hole 34, and the planetary gear 33 pushes the transmission upper cover 40 to rotate through the transmission column 42 in the transmission hole 34. The rotation of the upper transmission cover 40 is realized through the transmission column 42 and the transmission hole 34, the transmission distance between the planetary gear 33 and the output transmission shaft 41 is shortened, and the torque transmission is more stable.

Further, as shown in fig. 4, the number of the planetary gears 33 is set to be plural, and the transmission posts 42 are provided corresponding to the number and positions of the transmission holes 34. The greater the number of the planetary gears 33, the stronger the transmission stability between the planetary gears 33 and the output transmission shaft 41. Preferably, the number of the planetary gears 33 is three, so that the production cost is reduced while the use requirement is met.

Further, as shown in fig. 4, a central hole 32 is axially formed in the sun gear 31, an inner wall of the central hole 32 is provided with an internal spline, the upper end of the brake 22 is rotatably provided with a brake transmission shaft 23, the brake transmission shaft 23 is mounted in the central hole 32, and an external spline in transmission fit with the internal spline is arranged on the periphery of the brake transmission shaft 23. The central hole 32 is connected with the brake transmission shaft 23 through a spline, and the spline connection has high bearing capacity and good alignment property.

Further, as shown in fig. 3, the brake 22 is a magnetic powder brake 22, the control range of the torque of the magnetic powder brake 22 is very wide, the control precision is high, and the torque and the exciting current are in a precise proportion, so that the high-precision control can be realized. Under the control of the controller, when the vehicle door needs to stop, the controller controls the brake 22 to be electrified, so that the static torque is increased, the reduction gearbox does not rotate any more, and the vehicle door is ensured to rotate without external force or inertia influence.

Further, as shown in fig. 4, the outer wall of the outer gear ring 35 is provided with a fixing groove 36 recessed in the radial direction, the inner wall of the reduction gearbox housing 10 is provided with a fixing strip protruding in the radial direction, and the fixing strip is clamped to the fixing groove 36. The inner wall of the outer gear ring 35 is provided with inner teeth meshed with the planet gears 33, and the reduction gearbox shell 10 is installed on the fixing groove 36 through a fixing strip, so that the outer gear ring 35 and the reduction gearbox shell 10 are fixed.

Further, as shown in fig. 1 to 2, the reduction gearbox housing 10 includes a first housing 11, a second housing 12 and a third housing 13 which are arranged from bottom to top, the first housing 11, the second housing 12 and the third housing 13 are coaxially arranged, the first housing 11, the second housing 12 and the third housing 13 are communicated with each other to form an installation channel, the driving portion 20, the lower transmission mechanism 21, the brake 22 and the upper transmission mechanism 30 are in transmission connection through the installation channel, the driving portion 20 and the lower transmission mechanism 21 are installed in the first housing 11, the brake 22 is installed in the second housing 12, the upper transmission mechanism 30 is installed in the third housing 13, and the transmission upper cover 40 is installed at the upper end of the third housing 13, so that the overall structural stability is good, and the service life of the components is prolonged.

A trackless side sliding door comprises a side sliding door body and a reduction box, wherein a transmission upper cover 40 is in transmission connection with the side sliding door body.

The trackless side sliding door of the valve is driven by the reduction gearbox, and the trackless side sliding door is opened and closed. The trackless side sliding door realizes the two-stage speed reduction of the driving part 20, improves the output torque after the motor transmission and meets the requirement of mechanical design. Under the control of the ECU, the trackless side sliding door is stopped under the condition that the trackless side sliding door is needed.

In summary, the embodiment of the invention provides a trackless side sliding door and a reduction box thereof, wherein an output transmission shaft 41 is in transmission connection with the side sliding door, a lower transmission mechanism 21 is driven to transmit through a driving part 20, and the lower transmission mechanism 21, a brake 22, an upper transmission mechanism 30 and a transmission upper cover 40 are in transmission connection in sequence, so that the opening and closing of a vehicle door are realized. The brake 22 and the drive 20 are each communicatively connected to a controller, under the control of which the side door is stopped if necessary. The driving part 20 is connected with the lower transmission mechanism 21 in a transmission manner, the brake 22 is connected with the lower driving mechanism, the driving part 20 then drives the brake 22, the brake 22 can rotate freely under the condition of no power-on, and the driving part 20 realizes the electric side sliding door mode through the electric transmission of the side sliding door. When neither the driving unit 20 nor the brake 22 is energized, the door can be manually opened or closed, and in a sloping environment, the brake 22 does not work, and the door can freely swing, thereby realizing a manual side sliding door mode.

The above are only preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a reducing gear box of trackless side-slipping door which characterized in that: the transmission device comprises a reduction gearbox shell and a controller, wherein a driving part, a lower transmission mechanism, a brake and an upper transmission mechanism are sequentially arranged in the reduction gearbox shell from bottom to top, the driving part is connected with the lower transmission mechanism in a driving mode, the lower transmission mechanism is connected with the brake in a transmission mode, the brake is connected with the upper transmission mechanism in a transmission mode, the upper transmission mechanism is connected with a transmission upper cover in a transmission mode, an output transmission shaft extends upwards from the upper end of the transmission upper cover, and the brake and the driving part are respectively in communication connection with the controller.

2. The reduction gearbox for a railless side-sliding door according to claim 1, characterized in that: the driving part, the lower transmission mechanism, the brake, the upper transmission mechanism and the transmission upper cover are sequentially and coaxially arranged.

3. The reduction gearbox for a railless side-sliding door according to claim 1, characterized in that: the upper transmission mechanism comprises a sun gear, a planetary gear and an outer gear ring, the sun gear is in transmission connection with an output shaft of the brake, the planetary gear is installed between the sun gear and the outer gear ring, the planetary gear is in meshing transmission with the sun gear and the outer gear ring respectively, the outer gear ring is fixed on the shell of the reduction box, and the planetary gear is in transmission connection with the transmission upper cover.

4. The reduction gearbox for a railless side-sliding door according to claim 3, characterized in that: the planetary gear is coaxially provided with a transmission hole, the bottom surface of the transmission upper cover extends downwards to form a transmission column, and the transmission column is rotatably arranged in the transmission hole.

5. The reduction gearbox for a railless side-sliding door according to claim 4, characterized in that: the number of the planetary gears is set to be a plurality of, and the transmission columns are arranged corresponding to the number and the positions of the transmission holes.

6. A reduction gearbox for a railless sideslip door as defined in claim 3 wherein: the sun gear axial has seted up the centre bore, the centre bore inner wall is equipped with internal spline, the upper end of stopper is rotated and is equipped with the braking transmission shaft, the installation of braking transmission shaft with the centre bore, the periphery of braking transmission shaft be equipped with internal spline transmission complex external spline.

7. The reduction gearbox for a railless side-sliding door according to claim 1, characterized in that: the brake is a magnetic powder brake.

8. A reduction gearbox for a railless sideslip door as defined in claim 3 wherein: the inner wall of outer ring gear be equipped with planetary gear engaged with internal tooth, the outer wall of outer ring gear is equipped with along the fixed slot that radial direction invaginates, the convex fixed strip of radial direction has been seted up to the inner wall of reduction gear box casing, the fixed strip joint is in the fixed slot.

9. The reduction gearbox for a railless side-sliding door according to claim 1, characterized in that: the reduction gearbox shell comprises a first shell, a second shell and a third shell which are arranged from bottom to top, the first shell, the second shell and the third shell are coaxially arranged, the first shell, the second shell and the third shell are communicated with each other to form an installation channel, the driving portion, the lower transmission mechanism, the brake and the upper transmission mechanism are in transmission connection through the installation channel, the driving portion and the lower transmission mechanism are installed in the first shell, the brake is installed in the second shell, the upper transmission mechanism is installed in the third shell, and the transmission upper cover is installed at the upper end of the third shell.

10. The utility model provides a trackless side sliding door which characterized in that: the reduction gearbox comprises a side sliding door body and the reduction gearbox according to any one of claims 1 to 9, wherein the transmission upper cover is in transmission connection with the side sliding door body.