CN206581778U - A kind of gating device of inside/outside swing door - Google Patents

Abstract

The utility model discloses a kind of gating device of inside/outside swing door, including the drive mechanism being arranged in the axis hole of door-hinge, drive mechanism includes：Coupling ring, bearing, bearing block, decelerator, motor, encoder and band-type brake device, gating device also include controller and connecting rack；Motor is permagnetic synchronous motor, the front end output shaft and decelerator of motor are coaxially connected, the output spline of decelerator is adapted connection through bearing block with the center splined hole of coupling ring, the spline shell of decelerator is adapted connection with the spline in the axis hole of door-hinge, and coupling ring is fixedly connected with connecting rack；The coaxially connected encoder of rear end output shaft and band-type brake device of motor；Encoder is by the rotor angle location information Real-time Feedback of the motor detected to controller, and controller monitors electrically operated gate running status according to rotor angle position information.The utility model can highly reliably control the switch of door in high precision, and the process opened the door and closed the door is steady, does not impact.

Description

A door control device for an inner/outer swing door

technical field

The utility model belongs to the technical field of passenger cars, in particular to a gate control device for an inner/outer swing door.

Background technique

Structurally, bus doors are divided into inner swing doors, outer swing doors, folding doors, sliding doors and so on. Among them, the inner swing door and the outer swing door can realize the opening and closing action of the door through the rotational movement of the door shaft, which belongs to the door shaft type drive door. At present, most of the door control devices of the inner swing doors and outer swing doors of passenger cars, buses, buses and other vehicles are driven by pneumatics. Pneumatic doors need to be equipped with a gas station on the vehicle, and the gas station needs to be in operation all the time, which consumes a lot of energy. The existing pneumatic door control device has a simple driving principle and is easy to implement. It is an open-loop system and can work normally even when the precision of the mechanical system is not high. The technical threshold is low, and it is convenient for debugging and after-sales service. However, pneumatic doors have some inherent drawbacks:

1) The opening and closing process of the inner/outer swing door is not stable, and the impact is relatively large;

2) Since the gas station is always in operation, the energy consumption is serious;

3) The abnormal protection function of the inner/outer swing door is difficult to realize, and there are potential safety hazards;

4) The opening and closing process of the inner/outer swing door is noisy.

The electric inner/outer swing door uses the controller to drive the motor to drive the door switch, and the working characteristics of the electric door have high requirements for stability, reliability and control accuracy, so the usual asynchronous motor drive, stepper motor drive, Brushed DC motor drives are not suitable for application on electric doors. The servo motor drive fully meets the application requirements of electric doors, and has become the first choice for electric inner/outer swing doors.

Electric inner/outer swing doors are mainly used in new energy buses, that is, pure electric buses or hybrid buses. At present, major domestic bus manufacturers have started to mass-produce new energy buses in recent years, and equipped with electric drive solutions. However, they used imported products before, and they were only partially used in high-end buses. The price is expensive and the technical support is not perfect. , it is difficult to use in large quantities. Therefore, there is an urgent need for door control devices for domestic interior/exterior swing doors with high cost performance and good technical service.

To sum up, the existing door control device has the following defects: 1. The opening and closing process of the inner/outer swing door is not stable, and the impact is relatively large; 2. The opening and closing process of the inner/outer swing door is noisy; 3. Due to The gas station is always in operation and consumes a lot of energy; 4. It is difficult to realize the abnormal protection function of the inner/outer swing door, and there are potential safety hazards; 5. It is difficult to achieve high-precision and high-reliability control for ordinary motor drives.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art that the inner/outer swing door of the passenger car has an impact when opening/closing, the control accuracy is low and the reliability is low, and to provide a door opening/closing process that is stable, the control accuracy is high, and it is safe and reliable. Door control for inner/outer swing doors.

The technical scheme that the utility model solves its technical problem adopts is:

A door control device for an inner/outer swing door, characterized in that the door control device includes a drive mechanism arranged in the shaft hole of the door shaft, and the drive mechanism includes: a coupling ring, a bearing, a bearing seat, a reducer , a motor, an encoder and a brake, the door control device also includes a controller and a connecting bracket fixed on the door frame above the door shaft; the motor is a permanent magnet synchronous motor, and the front output shaft of the motor is connected to the The reducer is coaxially connected, the flange of the reducer is fixedly connected to the bearing seat, the output spline shaft of the reducer passes through the bearing seat and is connected to the central spline hole of the coupling ring, and the spline shell of the reducer is connected to the door The splines in the shaft hole of the shaft are matched and connected, and the coupling ring is fixedly connected with the coupling bracket; the rear end output shaft of the motor is coaxially connected to the encoder and the brake; the encoder detects the motor The rotor angular position information is fed back to the controller in real time, and the controller monitors the operating status of the electric door according to the motor rotor angular position information.

Further, the controller is a closed-loop vector controller.

Further, the connecting bracket is L-shaped, divided into a first right-angled surface and a second right-angled surface, the first right-angled surface is fixedly connected with the door frame through the slot hole on it, and the second right-angled surface passes through the The through hole and the coupling ring are fixed.

Further, the holding brake is a magnetoelectric brake.

Further, the encoder is a magnetoelectric absolute position sensor.

Further, the reducer is a planetary reducer.

Furthermore, the encoder includes a rotor, a stator, and a casing; the rotor is a magnetic steel ring fixed to the output shaft at the rear end of the motor; magnetic induction elements are evenly distributed on the circumference of the stator, and there is also a circuit on the stator plate, and the stator is also equipped with a shielding steel ring for shielding external magnetic field interference.

The beneficial effect of the door control device of a kind of inner/outer swing door of the present utility model is:

1. The use of high-efficiency permanent magnet synchronous motor and high-performance closed-loop vector controller can realize closed-loop vector control of current, and then realize closed-loop servo control of speed, so as to control the rotation of the motor with high precision and high reliability, and further drive the reducer and door The shaft rotates to realize the action of opening and closing the electric door.

2. The rotation speed can transition smoothly, and the process of opening and closing the door is smooth, without impact and noise.

3. The permanent magnet synchronous motor belongs to the servo motor, which can realize high-precision and high-reliability control.

4. The magnetoelectric absolute position sensor is used to monitor the operation status of the electric door in real time according to the angular position information of the detected motor rotor, and to realize timely protection when the door is abnormal.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the exploded view of the gate control device of the interior/external swing door of the present utility model;

Fig. 2 is the structural diagram of the default controller of the utility model embodiment;

Figure 3 is an exploded view of the encoder structure;

Fig. 4 is a three-dimensional view of the reducer;

Fig. 5 is another perspective view of the reducer;

Fig. 6 is a perspective view of the connecting bracket;

Figure 7 is a perspective view of the coupling ring;

Fig. 8 is another perspective view of the coupling ring;

Fig. 9 is a three-dimensional view of the bearing seat;

Fig. 10 is another perspective view of the bearing housing.

Among them: 1. Connection bracket, 2. Connection ring, 21. Central spline hole, 3. Bearing, 4. Bearing seat, 41. Annular boss, 42. Hollow shaft, 43. Center hole, 44. Lower end surface, 45 , countersunk through hole, 5, reducer, 51, flange, 52, output spline shaft, 53, spline shell, 6, motor, 7, encoder, 71, rotor, 72, stator, 73, shell , 8, brake, 9, controller, 91, the first rectangular surface, 92, the second rectangular surface, 93, slotted hole, 94, through hole.

detailed description

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

The door control device for the inner/outer swing door as shown in Figure 1 and Figure 2 includes a drive mechanism arranged in the shaft hole of the door shaft, and the drive mechanism includes: coupling ring 2, bearing 3, bearing seat 4, reducer 5 , motor 6, encoder 7 and brake 8, the door control device also includes a controller 9 and a connecting bracket 1 fixed on the door frame above the door shaft; the motor 6 is a permanent magnet synchronous motor, and the front output shaft of the motor 6 It is coaxially connected with the reducer 5, the flange 51 of the reducer 5 is fixedly connected with the bearing seat 4, and the output spline shaft 52 of the reducer 5 passes through the bearing seat 4 and fits with the central spline hole 21 of the coupling ring 2 connection, the spline housing 53 of the reducer 5 is matched with the spline in the shaft hole of the door shaft, and the coupling ring 2 is fixedly connected with the coupling bracket 1; the rear end output shaft of the motor 6 is coaxially connected with the encoder 7 and the The brake 8 and the encoder 7 feed back the detected rotor angular position information of the motor 6 to the controller 9 in real time, and the controller 9 monitors the operating state of the electric door according to the rotor angular position information of the motor 6 .

The motor 6 in this embodiment adopts a permanent magnet synchronous motor, which belongs to an AC servo motor, and has the advantages of small size, high efficiency and uniform magnetic field under the same power condition.

The controller 9 is a closed-loop vector controller, belonging to a servo controller, which realizes closed-loop vector control of current and closed-loop servo control of speed, with high control precision and high control efficiency.

As shown in Figure 6, the connecting bracket 1 is L-shaped, and is divided into a first right-angled surface 91 and a second right-angled surface 92. It is fixed with the coupling ring 2 through the through hole 94 thereon.

In this embodiment, the holding brake 8 is a magnetoelectric brake. The holding brake 8 converts the electrical signal provided by the controller 9 into a magnetic signal, and locks the motor rotor to prevent rotation through magnetic force, so that when the electric door is completely closed or When the door is open, lock the door to improve safety.

The encoder 7 is a magnetoelectric absolute position sensor. The encoder 7 accurately detects the angular position of the rotor of the motor 6 and outputs it to the controller 9 in the form of absolute mechanical position information, which provides a basis for the controller 9 to realize high-precision closed-loop vector control . At the same time, the encoder 7 has the characteristics of good shock resistance, high dust-proof and anti-fouling properties, strong resistance to temperature changes, etc., and is suitable for the normal operation of the electric door under severe environmental conditions. Shown in Figure 3 is the concrete structure of encoder 7, encoder 7 comprises rotor 71, stator 72 and casing 73; Rotor 71 is a magnetic steel ring, is fixed with the rear end output shaft of motor 6, and rotates synchronously with motor 6 rotor 71 The upper circumference of the stator 72 is evenly distributed with a magnetic induction element, and a circuit board is also arranged on the stator 72. The magnetic induction element detects the magnetic field generated by the rotor 71 magnetic steel ring, and converts the magnetic signal into an analog voltage signal output; Shielding steel ring for external magnetic field interference. The stator 72 is installed and fixed on the flange of the motor 6 ; the shell 73 is installed and fixed on the flange of the motor 6 for protecting the rotor 71 and the stator 72 of the encoder 7 .

Reducer 5 is a planetary gear reducer. The speed reducer 5 realizes multi-stage speed reduction through a planetary gear structure, and has small volume and high transmission efficiency. 4 and 5, the spline output shaft of the speed reducer 5 is used to connect with the spline hole on the coupling ring 2, and the spline housing 53 is used to connect with the spline inner hole of the door shaft to drive the door shaft to rotate; the speed reducer The input end of 5 also has a spline connected with the front output shaft of the motor 6, so that the motor 6 drives the reducer 5 to rotate, and the upper circumference of the flange 51 of the reducer 5 is evenly distributed with threaded holes for fixed connection with the bearing seat 4 ; The flange 51 is evenly distributed with countersunk holes for fixing with the housing 73 of the motor 6 .

The structure of the coupling ring 2 Referring to Figures 7 and 8, the upper end surface of the coupling ring 2 has a threaded hole connected to the coupling bracket 1, and the central spline hole 21 is used to connect with the splined output shaft of the reducer 5.

Referring to the structural diagram of the bearing housing 4 in Fig. 9 and Fig. 10, the annular boss 41 and the hollow shaft 42 are used to install the bearing 3 together. The central hole 43 on the hollow shaft 42 is used to pass the central shaft of the coupling ring 2, and the bottom The end face 44 is used for docking with the flange 51 of the reducer 5 , and the countersunk holes 45 evenly distributed on the circumference of the hollow shaft 42 are used for connecting with the threaded holes on the flange 51 of the reducer 5 .

It should be understood that the specific embodiments described above are only used to explain the utility model, and are not intended to limit the utility model. Obvious changes or changes derived from the spirit of the utility model are still within the protection scope of the utility model.

Claims (7)

1. A door control device for an inner/outer swing door, characterized in that the door control device includes a drive mechanism arranged in the shaft hole of the door shaft, and the drive mechanism includes: coupling ring (2), bearing ( 3), bearing housing (4), reducer (5), motor (6), encoder (7) and brake (8), the door control device also includes a controller (9) and a The connecting bracket (1) on the door frame above; the motor (6) is a permanent magnet synchronous motor, the front output shaft of the motor (6) is coaxially connected with the reducer (5), and the reducer (5) The flange (51) is fixedly connected with the bearing seat (4), and the output spline shaft (52) of the reducer (5) passes through the bearing seat (4) and is connected with the central spline hole (21) of the coupling ring (2). Adaptive connection, the spline housing (53) of the reducer (5) is matched with the spline in the shaft hole of the door shaft, and the coupling ring (2) is fixedly connected with the coupling bracket (1); the The rear end output shaft of the motor (6) is coaxially connected to the encoder (7) and the brake (8); the encoder (7) feeds back the detected rotor angular position information of the motor (6) to the controller in real time The device (9), the controller (9) monitors the operating state of the electric door according to the rotor angular position information of the motor (6). 2. A door control device for an inner/outer swing door according to claim 1, characterized in that the controller (9) is a closed-loop vector controller. 3. The door control device for inner/outer swing doors according to claim 1, characterized in that, the connecting bracket (1) is L-shaped, divided into a first right-angled surface (91) and a second right-angled surface (92) ), the first right-angled surface (91) is fixedly connected with the door frame through the slot hole (93) on it, and the second right-angled surface (92) is connected with the coupling ring (2) through the through hole (94) on it fixed. 4. The door control device for the inner/outer swing door according to claim 1, characterized in that the holding brake (8) is a magnetoelectric brake. 5. The door control device for inner/outer swing doors according to claim 1, characterized in that the encoder (7) is a magnetoelectric absolute position sensor. 6. The door control device for the inner/outer swing door according to claim 1, characterized in that the speed reducer (5) is a planetary gear speed reducer. 7. The door control device of the inner/outer swing door according to claim 1 or 5, characterized in that, the encoder (7) comprises a rotor (71), a stator (72) and a casing (73); The rotor (71) is a magnetic steel ring, which is fixed with the rear end output shaft of the motor (6); magnetic induction elements are evenly distributed on the upper circumference of the stator (72), and a circuit board is also arranged on the stator (72). (72) is also equipped with the shielding steel ring that is used for shielding external magnetic field interference.