CN218623841U - Driving mechanism of electric sliding door and split electric sliding door - Google Patents

Abstract

The utility model belongs to vehicle electrically operated gate field, concretely relates to actuating mechanism of electronic sliding door, including guide rail, pendulum sliding wheel group and trailing arm, during operation, pendulum sliding wheel group draws the action that the door leaf was accomplished to open, was closed the door, its characterized in that along the guide rail motion and drive the trailing arm: the guide rail is installed at the top of the door frame and is a semi-closed square groove body, an opening part for installing a sliding wheel group is arranged between one vertical side wall and the bottom wall, the sliding wheel group comprises a cross arm plate and two roller groups which are respectively installed at two ends of the cross arm plate, the roller group at one end, far away from the arc section of the guide rail, is a pulley group, the other roller group is a balance wheel group, a connecting shaft is downwards arranged in the middle of the bottom surface of the cross arm plate, and the supporting arm is rotatably installed on the connecting shaft. The utility model has the advantages of simple structure, long service life and easy maintenance.

Description

Driving mechanism of electric sliding door and split electric sliding door

Technical Field

The utility model belongs to vehicle electrically operated gate field, concretely relates to actuating mechanism and to open electrically operated sliding door of electrically operated sliding door.

Background

The driving structure of the existing electric sliding door mainly comprises three types, wherein the first type is a screw-nut pair driving structure for a sliding plug door; the second is a lower tray type chain driving structure; the third is a middle guide rail steel wire rope driving structure. Screw-nut pair drive structure: according to the driving structure, the screw rod transmission cannot realize curvilinear motion, so that the opening and the translation of the sliding door can be realized only through two sets of combined driving mechanisms in the opening and closing processes of the sliding door, and the driving structure is complex, the requirement on manufacturing and assembling precision is high, the production cost is high, the service life is short, and the maintenance is complex. Lower tray formula chain drive structure: this kind of actuating mechanism design occupies the chassis space of passenger train in the lower tray of door, reduces ground clearance, simultaneously, because of actuating mechanism arranges in the door lower part, chain and track receive the pollution of dust and rainwater easily, shorten life by a wide margin. Well guide rail wire rope drive structure: the driving mechanism is arranged on the middle guide rail, is influenced by space, has a smaller diameter of a driving steel wire rope, rubs with a rail in the moving process to cause abrasion and failure of the steel wire rope, and has a shorter service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a simple structure, long service life, easy to maintain's actuating mechanism of electronic sliding door.

The technical scheme for achieving the purpose comprises the following contents.

A driving mechanism of an electric sliding door comprises a driving motor, a chain wheel transmission mechanism, a guide rail, a sliding swing wheel group and a supporting arm, wherein the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain connected with a driving chain wheel and a driven chain wheel, the driving chain wheel is connected with the output end of the driving motor, the chain passes through the guide rail, one end of the supporting arm is connected with the sliding swing wheel group, the other end of the supporting arm is fixedly connected with a door leaf, the sliding swing wheel group is connected with the chain, when the driving mechanism works, the chain reciprocates, the sliding swing wheel group moves along the guide rail and drives the supporting arm to pull the door leaf to complete the opening and closing actions, the guide rail is arranged at the top of a door frame and comprises a straight section and an arc section, the straight section is parallel to a vehicle body, the arc section is bent towards the inner side of the vehicle body, the guide rail is a semi-closed square groove body, and is formed by enclosing a top wall, a bottom wall and two vertical side walls, an opening part for installing a sliding wheel group is arranged between one vertical side wall and the bottom wall, the sliding wheel group comprises a cross arm plate and two roller groups which are respectively installed at two ends of the cross arm plate, each roller group comprises a wheel carrier, a limiting roller vertically arranged on the wheel shaft and a bearing roller transversely arranged on the wheel shaft, one side of the wheel carrier is rotatably installed on the top surface of the cross arm plate, the limiting rollers and the bearing rollers are rotatably installed on the other side of the wheel carrier, the bearing rollers are supported by the bottom wall of the guide rail, the limiting rollers are restrained in the guide rail by the two vertical side walls of the guide rail, the cross arm plate is positioned below the outer side of the guide rail, the roller group at one end far away from the arc-shaped section of the guide rail is a pulley group, the other roller group is a balance wheel group, the wheel carrier of the pulley group is connected with a chain, a connecting shaft is downwards arranged in the middle part of the bottom surface of the cross arm, and the supporting arm is rotatably installed on the connecting shaft.

Further, the diameter of the roller of the chain is larger than the height of the chain plate of the chain. When the chain reciprocates in the guide rail, the rollers are contacted with the inner wall of the guide rail, and the sliding friction between the chain plate and the inner wall of the guide rail is replaced by the rolling friction, so that the chain is protected, the abrasion is reduced, and the service life is prolonged.

Further, the guide rail opening portion faces the vehicle body outer side.

Furthermore, the roller group is provided with two limiting rollers in parallel.

When the driving mechanism of the electric sliding door closes the door, the driving motor drives the chain to rotate positively, the pulley block is pulled by the chain to move along the guide rail, the balance wheel group is pushed to move towards the arc section direction of the guide rail, the cross arm plate drives the support arm and the door leaf connected with the support arm to move horizontally towards the door closing direction, when the balance wheel group enters the arc section of the guide rail, the limiting roller of the balance wheel group is approximately subjected to the side wall of the guide rail to generate translation and compound movement towards the inner side of the vehicle body, the front end of the cross arm plate is also driven by the balance wheel group to translate and swing towards the inner side of the vehicle body, and the support arm is rotatably connected with the cross arm plate and driven by the cross arm plate to translate and move towards the inner side of the vehicle, so that the door leaf fixed with the support arm is driven to translate and move towards the inner side of the vehicle body, the edge of the door leaf is connected with the edge of the door frame of the vehicle body, the door closing action is realized, and the driving motor stops driving. When the swinging wheel group is dragged to leave the arc section and enter the straight section, the transverse arm plate is dragged to move towards the outer side of the car body and move in the translation motion towards the outer side of the car body and the door opening direction, and the door leaf fixed with the supporting arm also generates the translation motion towards the outer side of the car body and the door opening direction, so that the edge of the door leaf is separated from the door frame edge of the car body.

The driving mechanism of the electric sliding door is arranged at the top of the door, cannot be polluted by rainwater and dust, and has long service life; in addition, the driving mechanism moves upwards, the original ground clearance of the passenger car cannot be influenced, and the maintenance and the overhaul are more convenient. The chain wheel and the chain are adopted for driving, the structure is more compact and reliable, and the service life is more than doubled compared with that of a steel wire rope structure.

Based on above-mentioned actuating mechanism the utility model also provides a to open sliding door, including two door leaves of running from opposite directions, two door leaves link to each other with the actuating mechanism of foretell electronic sliding door respectively.

Furthermore, the driving mechanisms of the two electric sliding doors are only provided with one driving motor, a synchronizer is arranged between the two chain wheel transmission mechanisms and is connected with one chain wheel of each of the two chain wheel transmission mechanisms, and the synchronizer synchronously transmits the power of one chain wheel to the other chain wheel.

The working principle of the split sliding door refers to the action principle of the driving mechanism of the electric sliding door, when the door is closed, the adjacent edges of two split door leaves are connected, and the other edges are connected with the edge of the door frame to seal the vehicle body. The split sliding door can be applied to large buses or commercial vehicles and has the advantages of simple structure, long service life and good maintainability.

It is required to explain that the utility model discloses a sliding door also need set up corresponding guide rail restraint door leaf motion in the bottom or the middle part of door leaf to increase the stability and the fastness that door leaf slided.

Drawings

FIG. 1 is a schematic bottom view of a door opening state of a driving mechanism of an electric sliding door according to an embodiment;

FIG. 2 is a schematic bottom view of the driving mechanism of the electric sliding door according to the embodiment in a closed state;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a front view of a drive mechanism of the electric sliding door of the embodiment;

FIG. 5 is a schematic structural view of a sliding and swinging wheel set according to an embodiment;

FIG. 6 is a schematic view showing the combination state of the roller set and the guide rail according to the embodiment;

FIG. 7 is a diagram illustrating an exemplary synchronizer structure;

fig. 8 is an overall structural view of the split sliding door of the embodiment.

In the figure, 1. A driving motor; 2. a chain; 3. a drive sprocket; 4. a guide rail; 4-1, bottom wall; 4-2. Side wall; 4-3. An opening part; 5. a sliding pendulum wheel set; 5-1, pulley block; 5-2, a swinging wheel group; 5-3, transverse bar board; 5-3-1. Connecting shaft; 5-4, limiting rollers; 5-5, supporting the roller; 5-6, wheel carrier; 6. a bracket arm; 7. a door leaf; and 8, a synchronizer.

Detailed Description

The present invention will be described in detail with reference to the following examples.

Referring to fig. 1 to 8, the embodiment provides a split sliding door, which includes a left door leaf and a right door leaf sliding in a split manner, the left door leaf and the right door leaf are respectively connected to two driving mechanisms of an electric sliding door symmetrically arranged on the top of a door frame, the two driving mechanisms share a driving motor on the top of the left door frame, the driving mechanism includes a sprocket transmission mechanism, a guide rail 4, a sliding swing wheel set 5 and a support arm 6, the sprocket transmission mechanism includes a driving sprocket 3, a driven sprocket and a chain 2 connected to the driving sprocket and the driven sprocket, the driving sprocket 3 on the top of the left door frame is connected to the output end of the driving motor 1, the driven sprocket on the top of the left door frame is connected to the driven sprocket on the top of the right door frame through a synchronizer 8, the chain 2 passes through the guide rail 4, one end of the support arm 6 is connected to the sliding swing wheel set 5, the other end is fixedly connected to the door leaf 7, and the sliding swing wheel set 5 is connected to the chain 2, when the sliding door frame is in operation, the chain 2 reciprocates, the sliding wheel group 5 moves along the guide rail 4 and drives the bracket 6 to pull the door leaf 7 to complete the door opening and closing action, the guide rail 4 is arranged at the top of the door frame, the guide rail 4 comprises a straight section and an arc-shaped section, the straight section is parallel to the vehicle body, the arc-shaped section is close to the center of the door and bends towards the inner side of the vehicle body, the guide rail 4 is a semi-closed square groove body, the guide rail 4 is formed by enclosing a top wall, a bottom wall 4-1 and two vertical side walls 4-2, an opening part 4-3 for installing the sliding wheel group 5 is arranged between one vertical side wall 4-2 and the bottom wall 4-1, the opening part 4-3 faces towards the outer side of the vehicle body, the sliding wheel group 5 comprises a cross arm plate 5-3 and two roller groups respectively arranged at two ends of the cross arm plate 5-3, referring to figures 5 and 6, the roller groups comprise wheel carriers 5-6, two limiting rollers 5-4 vertically arranged on the rotating shaft and a bearing roller 5-5 transversely arranged on the rotating shaft, one side of a wheel carrier 5-6 is rotatably arranged on the top surface of a transverse arm plate 5-3, a limiting roller 5-4 and a bearing roller 5-5 are rotatably arranged on the other side of the wheel carrier 5-6, the bearing roller 5-5 is supported by the bottom wall 4-1 of the guide rail 4, the limiting roller 5-4 is restrained in the guide rail 4 by two vertical side walls 4-2 of the guide rail 4, the transverse arm plate 5-3 is positioned below the outer side of the guide rail 4, a roller group at one end of an arc-shaped section far away from the guide rail 4 is a pulley group 5-1, the other roller group is a swinging wheel group 5-2, the wheel carrier 5-6 of the pulley group 5-1 is connected with a chain 2, a connecting shaft 5-3-1 is arranged downwards at the middle part of the bottom surface of the transverse arm plate 5-3, close to the swinging wheel group 5-2, and a supporting arm 6 is rotatably arranged on the connecting shaft 5-3-1;

in this embodiment, the diameter of the roller of the chain 2 is larger than the height of the link plate of the chain 2. When the chain 2 reciprocates in the guide rail 4, the roller is contacted with the inner wall of the guide rail 4, and the sliding friction between the chain plate and the inner wall of the guide rail 4 is replaced by rolling friction, so that the chain 2 is protected, the abrasion is reduced, and the service life is prolonged.

When the split sliding door of the embodiment is closed, the driving motor 1 at the top of the left door frame drives the left side chain 2 to rotate forwardly, the driven chain wheel in the driving mechanism of the left door drives the driven chain wheel in the driving mechanism of the right door through the synchronizer 8, the chain 2 at the right side also realizes the forward rotation, the pulley blocks 5-1 at the left side and the right side are respectively pulled by the respective chains 2 to move towards the center of the sliding door along the guide rail 4, the swinging wheel set 5-2 is pushed to move towards the arc section of the guide rail 4, the left and the right cross arm boards 5-3 drive the respective support arms 6 (door leaves 7) to move towards the center, see fig. 3, when the swinging wheel set 5-2 enters the arc section of the guide rail 4, the limiting rollers 5-4 of the swinging wheel set 5-2 are restrained by the side walls 4-2 of the guide rail 4 to move towards the inner side of the vehicle body while moving, the front ends of the cross arm boards 5-3 are driven by the balance wheel sets 5-2 to move horizontally and swing towards the inner side of the vehicle body, because the support arms 6 are rotatably connected with the cross arm 5-3, the door leaves 5-3 are driven by the door leaf and move towards the edge of the door leaf and the edge of the other door leaf 1 and the door leaf 7, and the door leaf, the door leaf is finally stopped by the motor.

When the split sliding door of the embodiment is opened, the driving motor 1 at the top of the left door frame drives the left chain 2 to rotate reversely, the driven chain wheel in the driving mechanism of the left door drives the driven chain wheel in the driving mechanism of the right door through the synchronizer 8, the chain 2 at the right side also realizes the reverse rotation, the left and right pulley blocks 5-1 are respectively pulled by the respective chains 2 to move towards the two sides of the door along the guide rail 4, the swinging wheel set 5-2 is pulled by the cross arm plate 5-3 to move along the arc section of the guide rail 4, the limiting idler wheels 5-4 of the swinging wheel set 5-2 are restricted by the side wall 4-2 of the guide rail 4 to move towards the outer side of the vehicle body and simultaneously move towards the two sides of the door, the cross arm plate 5-3 is driven by the swinging wheel set 5-2 to swing towards the outer side of the vehicle body and simultaneously move towards the two sides of the door, because the bracket arm 6 is rotatably connected with the cross arm plate 5-3, the bracket arm 6 is pulled by the cross arm plate 5-3 to move towards the outer side of the vehicle body and simultaneously translate towards two sides of the vehicle door, the door leaf 7 fixed with the bracket arm 6 is also driven to translate towards the outer side of the vehicle body and simultaneously translate towards two sides of the vehicle door, the edge of the door leaf 7 is separated from the door frame edge of the vehicle body and simultaneously translates towards two sides of the vehicle door, the left and right cross arm plates 5-3 are respectively pulled by respective pulley blocks 5-1 and simultaneously move towards two sides of the sliding door, when the swinging pulley block 5-2 moves from the arc section to the straight section, the left and right door leaves 7 only do translation movement and the distance between the adjacent edges is gradually increased, so that the sliding door opening is realized, and the driving motor 1 stops driving until the distance between the two edges reaches the specified distance, and the door opening action is finished.

The structure of the synchronizer 8 used in the embodiment is shown in fig. 7, two adjacent driven sprockets are respectively and coaxially provided with gears with the same tooth number, and the two gears are meshed in a matching way to realize synchronous transmission of torque from one driven sprocket to the other driven sprocket.

The split sliding door of the embodiment can be suitable for buses, the driving mechanism is installed at the top of the door frame, the pollution of rainwater and dust is avoided, the fault reduction is facilitated, the chain wheel transmission mechanism is simple in structure, the service life is long, the sliding swing wheel group 5 ensures that the left door leaf 7 and the right door leaf 7 of the sliding door are kept unchanged in posture all the time in the door opening and closing process, the translation is realized, the size of the vehicle door body is favorably reduced, and the sliding effect is good.

Claims (6)

1. The utility model provides an actuating mechanism of electronic sliding door, includes driving motor, sprocket drive, guide rail, gliding pendulum wheelset and trailing arm, and sprocket drive includes drive sprocket, driven sprocket and the chain that links to each other with main, follow the sprocket, and drive sprocket links to each other with driving motor's output, the chain passes through from the guide rail, trailing arm one end links to each other with the gliding pendulum wheelset, and the other end links to each other with the door leaf is fixed, and the gliding pendulum wheelset links to each other with the chain, and during operation, the gliding pendulum wheelset of chain reciprocating motion drive is along guide rail motion and drive the trailing arm and pull the door leaf and accomplish the action of opening, closing the door, its characterized in that: the guide rail is installed at the top of the door frame and comprises a straight section and an arc-shaped section, the straight section is parallel to the car body, the arc-shaped section is bent towards the inner side of the car body, the guide rail is a semi-closed square groove body, the guide rail is formed by enclosing a top wall, a bottom wall and two vertical side walls, an opening for installing a sliding wheel set is arranged between one vertical side wall and the bottom wall, the sliding wheel set comprises a cross arm plate and two roller sets which are respectively installed at two ends of the cross arm plate, each roller set comprises a wheel carrier, a limiting roller vertically arranged on the wheel shaft and a bearing roller transversely arranged on the wheel shaft, one side of the wheel carrier is rotatably installed on the top surface of the cross arm plate, the limiting roller and the bearing roller are rotatably installed at the other side of the wheel carrier and are supported by the bottom wall of the guide rail, the limiting roller is restrained in the guide rail by the two vertical side walls of the guide rail, the cross arm plate is located below the outer side of the guide rail, the roller set far away from one end of the arc-shaped section of the guide rail is a roller set, the other roller set is a balance wheel, the wheel set is connected with a chain, the wheel carrier is connected with a chain, the connecting shaft is rotatably installed on the connecting shaft.

2. The drive mechanism for an electrically operated sliding door according to claim 1 wherein the roller diameter of said chain is greater than the link plate height of the chain.

3. The drive mechanism of an electric sliding door according to claim 1, wherein the opening portion of the guide rail faces the outside of the vehicle body.

4. The driving mechanism of an electric sliding door according to claim 1, wherein the roller set is provided with two limiting rollers in parallel.

5. A split power sliding door comprising two split leaves, wherein the two leaves are connected to the drive mechanisms of two power sliding doors according to any one of claims 1 to 4.

6. The split electric sliding door according to claim 5, wherein the driving mechanism of the two electric sliding doors is provided with only one driving motor, a synchronizer is provided between the two chain wheel transmission mechanisms, the synchronizer is connected with each chain wheel of the two chain wheel transmission mechanisms, and the synchronizer synchronously transmits the power of one chain wheel to the other chain wheel, thereby ensuring the synchronous opening and closing operation of the two split doors.

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