阅读说明：本技术 一种轨道车辆端门驱动机构 (End door driving mechanism of railway vehicle ) 是由 郝萌 梁士国 杨怀生 李渊 于 2021-08-25 设计创作，主要内容包括：一种轨道车辆端门驱动机构,主要包括驱动机构、回弹单元、驱动臂组成、同步绳机构、电磁铁、导轨、位置开关,驱动机构连接门板及同步绳机构,驱动臂组成上端与回弹单元连接,下端连接门板,回弹单元用于紧急情况时使驱动臂组成带动门板运动实现自动关门,位置开关用于检测门是否开到位,电磁铁用于门开到位时吸住门板。车辆正常运营期间,门扇处于打开状态,通过电磁铁吸合使门扇保持在打开位置,处于打开位置的门系统将能量储存在回弹单元里的弹簧内,当遇到火灾或其它紧急情况,电磁铁将被断电而失去吸合力,门板在弹簧张力作用下实现自动关闭。(The utility model provides a rail vehicle end door actuating mechanism, mainly includes actuating mechanism, resilience unit, the actuating arm is constituteed, synchronous rope mechanism, the electro-magnet, the guide rail, position switch, actuating mechanism connects door plant and synchronous rope mechanism, the actuating arm is constituteed the upper end and is connected with resilience unit, the door plant is connected to the lower extreme, resilience unit makes the actuating arm constitute and drives the door plant motion and realize closing automatically when being used for emergency, position switch is used for detecting whether open the door targets in place, the electro-magnet is used for the door to open and catches the door plant when targeting in place. During the normal operation of vehicle, the door leaf is in the open mode, makes the door leaf keep opening the position through the electro-magnet actuation, and the door system that is in opening the position stores the energy in the spring in the unit that kick-backs, when meetting conflagration or other emergency, the electro-magnet will be cut off the power supply and lose the suction force, and the door plant realizes self-closing under spring tension.)

1. A rail vehicle end door actuating mechanism which characterized in that: the device mainly includes actuating mechanism, resilience unit, actuating arm group one-tenth, synchronous rope mechanism, electro-magnet, guide rail, position switch, and actuating mechanism connects door plant and synchronous rope mechanism, and the upper end is connected with resilience unit to the actuating arm group one-tenth, and the door plant is connected to the lower extreme, makes the actuating arm group one-tenth drive door plant motion realize automatic closing the door when resilience unit is used for emergency, and position switch is used for detecting whether the door opens and targets in place, and the electro-magnet is used for holding the door plant when the door opens and targets in place.

2. A rail vehicle end door drive mechanism as claimed in claim 1, wherein: the resilience unit comprises a shell, a gear shaft, a limiting bolt, an adjusting bolt, a gear, a rack, a sliding block, a connecting rod, a driving spring and a bearing, wherein the driving spring is connected with the sliding block through the connecting rod, the sliding block is connected with the rack, the rack is meshed with the gear shaft, the limiting bolt is installed at the rear end of the shell, and the adjusting bolt is connected at the front end of the shell.

3. A rail vehicle end door drive mechanism as claimed in claim 1, wherein: the driving arm assembly comprises a driving arm, a driven arm and a connecting block, wherein the driving arm is movably connected with the driven arm, and the driven arm is movably connected with the connecting block.

4. A rail vehicle end door drive mechanism as claimed in claim 3, wherein: the shape of the active arm is bent outwards.

5. A rail vehicle end door drive mechanism as claimed in claim 1, wherein: the synchronous rope mechanism comprises a steel wire rope, two mounting seats and two idler wheels, the idler wheels are arranged below the mounting seats, one end of the steel wire rope is connected with the driving mechanism, and the other end of the steel wire rope bypasses the two idler wheels to be connected with the linear bearing on the door plate on the right side, so that synchronous motion of the two door plates is realized.

6. A rail vehicle end door drive according to any one of claims 1 to 5, wherein: the door lock also comprises a locking device arranged on the door plate and used for locking the left door plate and the right door plate together when the door is closed, so that the phenomenon that flame is blown out due to thermal deformation and flash seams between the door plates is avoided.

7. A rail vehicle end door drive mechanism as claimed in claim 6, wherein: the locking device comprises a locking plate, a locking pin seat and a locking pin, wherein the locking plate is arranged on the left door plate, the locking pin seat and the locking pin are arranged on the right door plate, and the locking pin penetrates through a locking pin hole in the locking plate to be fixedly locked with the locking pin plate.

8. A rail vehicle end door drive mechanism as claimed in claim 2, wherein: the nylon guide grinding strip is arranged on the circumference of the sliding block.

Technical Field

The invention belongs to the technical field of end door control of railway vehicles, and particularly relates to a fireproof end door driving mechanism.

Background

In the existing railway vehicle structure, an inner end door and an outer end door are usually arranged at the end part of a vehicle, the outer end door is mainly used for fire prevention, and the inner end door is a common compartment partition door, so that specific operation requirements are met. The outer end door is arranged for meeting the fireproof requirement of the vehicle, and the door needs to be kept in an open state in the normal operation process, so that the open passenger environment is ensured, and the passengers can conveniently pass between the carriages. Meanwhile, when a fire disaster happens, the vehicle is not electrified, the door needs to be automatically closed, a fireproof partition is formed, and the safety of passengers is ensured. However, the outer end doors are normally closed end doors, the opening and closing of the doors are realized through a motor, and for the normally closed fireproof end doors, the doors need to be opened and then closed every time when the normally closed fireproof end doors pass through the end part of a carriage, so that the normal passing and escape of passengers between the carriages are influenced under emergency conditions such as fire and the like, and the running safety of a vehicle cannot be effectively ensured.

Disclosure of Invention

The invention aims to provide a novel end door driving mechanism of a railway vehicle, wherein for an end door in a normally open state, a vehicle door system can be automatically closed under the condition that the vehicle encounters a fire, and when the temperature is raised to a certain degree, the whole door system is locked, so that the open fire escaping caused by the thermal deformation of the end door is avoided, and the fire spreading is prevented.

In order to achieve the above object, the present invention provides a rail vehicle end door driving mechanism, which is characterized in that: the device mainly includes actuating mechanism, resilience unit, actuating arm group one-tenth, synchronous rope mechanism, electro-magnet, guide rail, position switch, and actuating mechanism connects door plant and synchronous rope mechanism, and the upper end is connected with resilience unit to the actuating arm group one-tenth, and the door plant is connected to the lower extreme, makes the actuating arm group one-tenth drive door plant motion realize automatic closing the door when resilience unit is used for emergency, and position switch is used for detecting whether the door opens and targets in place, and the electro-magnet is used for holding the door plant when the door opens and targets in place.

Preferably, how do the rebound unit include a housing, a gear shaft, a limit bolt, an adjusting bolt, a gear, a rack, a sliding block, a link, a drive spring, a bearing, where the drive spring is connected to the sliding block via the link, the sliding block is connected to the rack, the rack is engaged with the gear shaft, and a wear strip is installed? What does it work? The limiting bolt is installed at the rear end of the shell and used for limiting the initial position of the sliding block, and the force of the swing arm to the door panel can be adjusted when the door is in the closed position.

The adjusting bolt is installed at the front end of the shell and used for adjusting the rebound tension of the driving spring.

Preferably, the driving arm assembly comprises a driving arm, a driven arm and a connecting block, wherein the driving arm is movably connected with the driven arm, and the driven arm is movably connected with the connecting block.

Further, the active arm shape is bent outward so as to avoid the door panel in the door panel thickness direction.

Preferably, the synchronous rope mechanism comprises a steel wire rope, two mounting seats and two idler wheels, the idler wheels are arranged below the mounting seats, one end of the steel wire rope is connected with the driving mechanism, and the other end of the steel wire rope bypasses the two idler wheels to be connected with the linear bearing on the door panel on the right side, so that synchronous motion of the two door panels is realized.

Furthermore, a locking device is arranged on the door panel and used for locking the left door panel and the right door panel together when the door is closed, so that the phenomenon that flame escapes from a flash seam between the door panels is avoided.

Preferably, the locking device comprises a locking plate, a locking pin seat and a locking pin, the locking plate is mounted on the left door plate, the locking pin seat and the locking pin are mounted on the right door plate, and the locking pin penetrates through a locking pin hole in the locking plate and is fixedly locked with the locking pin plate.

In order to reduce the friction force between the sliding block and the shell, nylon guide grinding strips are arranged on the periphery of the sliding block.

During the normal operation of the vehicle, the motor drives the screw rod, the screw rod nut, the linear bearing and the synchronous rope mechanism to enable the door leaf to be in an open state, the door leaf is kept in an open position through the attraction of the electromagnet, the door system in the open position stores energy in the spring in the rebounding unit, when a fire disaster or other emergency occurs, the electromagnet is powered off and loses attraction force, at the moment, the elastic potential energy stored in the spring is converted into linear motion of the door panel through the gear shaft and the rack, and the automatic closing of the door system is realized. Meanwhile, the locking device controlled by temperature is arranged, so that the normal passing and escape of passengers between the carriages are not influenced in the initial stage of a fire, the safety of vehicles can be effectively guaranteed, and meanwhile, the door system can be prevented from being heated and deformed to cause the flame to escape.

Drawings

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a schematic view of a rebound unit;

FIG. 3 is a cross-sectional view of the rebound unit;

FIG. 4 is a schematic view of the driving arm assembly;

FIG. 5 is a schematic view of a synchronous rope composition;

FIG. 6 is a schematic view of a locking device;

FIG. 7 is a schematic view of the door opening;

fig. 8 is a schematic view of the door closed.

The designations in the drawings have the following meanings:

1: load beam, 2: rebound unit, 3: position switch, 4: electromagnet, 5: drive arm assembly, 6: door panel, 7: locking device, 8: guide rail, 9: synchronous rope composition, 10: motor, 11: screw nut, 12: a lead screw;

201: housing, 202 gear shaft, 203 limit bolt, 204: bearing, 205: rack, 206: slider, 207: a connecting rod, 208: drive spring, 209: adjusting the bolt;

501: active arm, 502: driven arm, 503: connecting blocks;

701: locking plate, 702: a lock pin, 703: a lock pin seat;

901: wire rope, 902: mount, 903: roller, 904: and a linear bearing.

Detailed Description

The invention will be further explained with reference to the drawings, wherein the left side of the drawing is front and the right side is rear.

As shown in fig. 1, which is a schematic view of an overall structure, a specific embodiment includes a load-bearing beam 1, a rebound unit 2, a position switch 3, an electromagnet 4, a driving arm assembly 5, a door panel 6, a locking device 7, a guide rail 8, a synchronous rope assembly 9, a motor 10, a lead screw nut 11, and a lead screw 12. The whole device is fixed on a bearing beam 1 and is installed on a vehicle through the bearing beam 1. The motor 10 and the lead screw 12 are directly connected through a coupling, the lead screw nut 11 is sleeved on the lead screw, the motor, the lead screw and the lead screw nut are installed on the bearing cross beam through two installation seats by bolts, and the three components form a driving mechanism to drive the door panel to move. Under normal conditions, motor 10 drive lead screw 12 is rotatory, drives lead screw nut 11 and slides on lead screw 12, and lead screw nut and door plant 6 are fixed together, and the linear bearing that drives door plant 6 and form 9 through synchronous rope slides on guide rail 8, and guide rail 8 passes through for the bolt fastening of three support on bearing beam. The position switch 3 is directly fixed on the bearing beam through a bolt and is used for detecting whether the door is opened in place. The synchronous rope connected with the screw nut ensures that the two door panels 6 move synchronously, and the door panels 6 are opened and closed. When the position switch 3 detects that the door panel 6 reaches the open position, the vehicle supplies power to the electromagnet 4, the electromagnet 4 electrically attracts the armature on the door panel 6, and the attraction force of the electromagnet overcomes the force given to the door panel 6 by the rebounding unit 2 through the driving arm assembly 5, so that the door panel 6 is kept at the open position. When a fire or other emergency occurs, the electromagnet 4 is powered off and loses magnetic force, and the door panel 6 is automatically pushed to the closed position through the driving arm assembly 5 under the action of the rebounding unit 2.

Referring to fig. 2 and 3, the rebound unit 2 is mainly composed of a housing 201, a gear shaft 202, a limit bolt 203, a bearing 204, a rack 205, a slide block 206, a link 207, a drive spring 208, and an adjustment bolt 209. The driving spring 208 is connected with the sliding block 206 through the connecting rod 207, the sliding block 206 is connected with the rack 205, the rack 205 is meshed with the gear shaft 202, and the limiting bolt is arranged at the rear end of the shell and used for limiting the initial position of the sliding block, so that the force of the swing arm to the door panel when the door is in the closed position can be adjusted. The adjusting bolt is installed at the front end of the shell through threads and used for adjusting the rebound tension of the driving spring.

The door plant is at the in-process of opening under screw nut's drive, form continuously compressing driving spring 208 through the actuating arm, make the resilience tension of spring constantly increase, lose magnetic force when the electro-magnet outage, the door plant disengages the electro-magnet, at this moment, driving spring 208 is under the effect of resilience tension, two sliding blocks 206 and the whole translation of rack 205 around promoting through connecting rod 207, the translation of rack 205 drives gear shaft 202 and rotates, gear shaft 202 passes through bearing 204 to be fixed on casing 201, the rotation of gear shaft 202 drives the actuating arm and constitutes the swing, the actuating arm is constituteed and is promoted door plant 6 translations, realize closing of door system.

The rebound tension of the driving spring 208 can be adjusted at the initial assembly by rotating the adjusting bolt 209, the adjusting bolt 209 is rotated clockwise to compress the spring, the rebound tension of the spring is increased, the thrust of the rebound unit to the door panel is improved, and the thrust is reduced by rotating counterclockwise.

In order to reduce the friction force between the sliding block and the shell, nylon guide grinding strips are arranged on the periphery of the sliding block.

Referring to fig. 4, the driving arm assembly includes a driving arm 501, a driven arm 502, and a connecting block 503, the connecting block 503 is fixed on the door panel, one end of the driving arm 501 is connected to a gear shaft of the rebounding unit, the other end is movably connected to the driven arm 502, and the driven arm 502 is movably connected to the connecting block 503. The shape of the active arm is continuously bent outwards and downwards so as to avoid the door panel in the thickness direction of the door panel.

Referring to fig. 5, the synchronous rope assembly comprises two steel wire ropes 901, two mounting seats 902, two rollers 903 and four linear bearings 904, the mounting seats and the motors are all hung on the bearing beam, the rollers 903 are mounted below each mounting seat, one steel wire rope 901 can be used, and two steel wire ropes are used for facilitating mounting and replacement. Two ends of the upper surface of each door plate are respectively provided with a linear bearing 904, two steel wire ropes 901 are wound around rollers at one end of each steel wire rope and then are connected end to end, and the joints of the two steel wire ropes are fixed on the linear bearings 904 at the inner sides of the upper surfaces of the door plates. Because the right linear bearing on the left door panel is connected with the screw nut 11, the screw 12 drives the screw nut 11 to serve as a driving part to drive the steel wire rope 901 and the left door panel 6 to move leftwards, and meanwhile, the right door panel moves rightwards under the driving of the left linear bearing on the right door panel, so that the synchronous opening and closing of the two door panels are realized.

Referring to fig. 6, the locking device includes a locking plate 701, a locking pin 702, and a locking pin seat 703, the locking plate 701 is installed on the left door panel, the locking pin seat 703 and the locking pin 702 are installed on the right door panel, and the locking pin 702 passes through a locking pin hole on the locking plate to be locked with the locking plate 701. Under the normal temperature state, the lock pin is contracted in the lock pin seat, and a spring is arranged below the lock pin. The lockpin is fixed by solid wax under the normal atmospheric temperature condition, and when the temperature rose to certain extent, wax melted, the spring pushed up lockpin 702, worn in the lockhole of jam plate 701, even the door system is heated and is out of shape, two door plants 6 also can be in one by mechanical lock, avoid the flash seam between the door plant to make flame play.

Referring to fig. 7, under normal conditions, the motor 10 drives the screw 12 to rotate, drives the screw nut 11 to slide on the screw 12, the screw nut 11 and the door panel 6 are fixed together, drives the door panel 6 to slide on the guide rail 8 through the linear bearing 904, and the synchronous rope assembly 9 ensures the synchronous motion of the two door panels 6, so as to open and close the door panels 6. When the position switch 3 detects that the door panel 6 reaches the open position, the electromagnet 4 attracts the door panel 6 in an electrified way, and the attraction force of the electromagnet overcomes the force given to the door panel 6 by the rebounding unit 2 through the driving arm component 3, so that the door panel 6 is kept at the open position.

Referring to fig. 8, when a fire or other emergency occurs, the electromagnet 4 is powered off and loses magnetic force, and the door panel 6 is automatically pushed to the closed position by the driving arm assembly 3 under the action of the rebounding unit 2.