WO2021218294A1 - Door gap compensator, door gap compensator control system and method, and rail vehicle - Google Patents

Abstract

A door gap compensator control system, comprising: an air cylinder (30), configured to drive a step body (20) to horizontally extend and retract along the bottom surface of a floor body (10), the air cylinder (30) comprising a cylinder body and a piston extending and retracting along the cylinder body, and an extension air inlet (31) and a retraction air inlet (32) being formed in the cylinder body, and the extension air inlet (31) and the retraction air inlet (32) being connected to air pipelines, respectively; inductive switches (60), provided on the air cylinder and configured to detect a position of the piston; and a controller, configured to control, according to the position of the piston detected by the inductive switches (60), the extension air inlet (31) or the retraction air inlet (32) to introduce gas to control the piston to extend to a designated position or retract to a designated position. Also provided is a door gap compensator, comprising: the floor body (10), configured to be fixedly embedded at a mounting recess reserved in the floor of a vehicle body door area; the step body (20), slidably connected to the bottom surface of the floor body (10); and a driving mechanism, configured to drive the step body (20) to horizontally extend and retract along the floor body (10). The door gap compensator control system and the door gap compensator can solve the problems that existing door gap compensators having a pneumatic structure employ a flipping structure, and thus occupy a large space, and are complex in structure and low in reliability, telescopic strokes of steps cannot be controlled, and the telescopic distance of the steps is fixed and non-adjustable. Also provided are a door gap compensation method and a rail vehicle provided with the door gap compensator.

Description

Door clearance compensator, door clearance compensator control system, method and rail vehicle

Cross-references to related applications

This application requires the application number submitted on April 27, 2020 to be 202010346449.9, the title of the invention is "Door lash compensator, door lash compensator control system, method and rail vehicle" and the application number submitted on April 27, 2020 It is 202010345747.6, the priority of the Chinese patent application with the title of "Door Clearance Compensator and Rail Vehicle", which is fully incorporated into the present disclosure by reference.

Technical field

The present invention relates to the technical field of rail vehicle gap compensation, and in particular to a door gap compensator, a door gap compensator control system, method and rail vehicle.

Background technique

The door clearance compensator, as the name implies, is used to compensate for the gap between the door and the platform. After parking, the pedal of the door clearance compensator extends toward the platform to facilitate passengers getting on and off the train; the pedal direction of the door clearance compensator at the start Retract away from the platform so as not to affect the normal driving of the vehicle.

However, the current existing door lash compensator has the following shortcomings: (1) The existing door lash compensator of the pneumatic structure adopts a flip structure, which takes up a large space, has a complicated structure, and has low reliability;

(2) The existing pneumatic push structure cannot realize the control of the pedal telescopic stroke, and the pedal telescopic distance is fixed and not adjustable;

(3) The existing pneumatic pushing structure cannot realize the control of the telescopic force of the pushing cylinder;

(4) The gap between the floor and the pedals of the existing structure is relatively large, which cannot meet the requirements of wheelchairs and other special equipment to get on and off the vehicle freely, and the gap between the floor and the pedals cannot be adjusted.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a door lash compensator control system, which solves the problem that the existing pneumatic structure of the door lash compensator adopts a flip structure, which takes up a large space, has a complex structure, has low reliability, and cannot realize the control of the pedal expansion stroke. , The problem that the pedal telescopic distance is fixed and not adjustable.

The invention also provides a door clearance compensator.

The invention also provides a method for controlling the door clearance compensator.

The invention also provides a rail vehicle.

A door lash compensator control system according to an embodiment of the present invention includes:

The air cylinder is used to drive the pedal body to expand and contract horizontally along the bottom surface of the floor body. The air cylinder includes a cylinder body and a piston that expands and contracts along the cylinder body. The cylinder body is provided with an extended air inlet and a retracted air inlet, The extended air inlet and the retracted air inlet are respectively connected with an air pipeline for connecting to an air supply unit;

An induction switch, which is provided on the cylinder for sensing the position of the piston;

The controller is used to control the extended intake port or the retracted intake port to intake air according to the position of the piston detected by the inductive switch, so as to control the piston to extend to a specified position Or retract to the designated position.

According to an embodiment of the present invention, throttle valves are respectively provided at the extending air inlet and the retracted air inlet, and both the throttle valves are signally connected to the controller.

According to an embodiment of the present invention, the cylinder block is further provided with a locked air inlet, and the locked air inlet is connected with an air pipeline for connecting to the air supply unit, and the air supply unit is The vehicle's own air supply system.

According to an embodiment of the present invention, the inlets of the air pipe extending from the air inlet, the air pipe retracting the air inlet, and the air pipe closing the air inlet are all equipped with electromagnetic The solenoid valve is signal-connected to the controller.

According to an embodiment of the present invention, the induction switch is a magnetic control switch, the magnetic body of the magnetic control switch is provided on the piston in the cylinder, and a pair of the magnetic The distance between the two movable contacts is equal to the preset telescopic stroke of the cylinder, and one of the movable contacts corresponds to the piston that is not extended and is provided with the magnetic body Location settings.

A door lash compensator according to another embodiment of the present invention includes a floor body, a pedal body, and the aforementioned door lash compensator control system, and the floor body is configured to be fixedly embedded on the floor of the door area of the vehicle body At the reserved installation gap, the pedal body is slidably connected to the bottom surface of the floor body, and the air cylinder is configured to drive the pedal body to expand and contract horizontally along the floor body.

According to an embodiment of the present invention, the fixed end of the cylinder is rotatably connected to the bottom surface of the rear end of the floor body through a first pin, and the protruding end of the piston is connected to the pedal body through a second pin. The bottom surface of the front end is rotatably connected, the first pin shaft and the second pin shaft are arranged in parallel, and the axial directions of the first pin shaft and the second pin shaft are perpendicular to the expansion and contraction direction of the piston.

According to an embodiment of the present invention, the floor body is used to be fixedly embedded in the installation gap reserved on the floor of the door area of the vehicle body, and a sliding rail and a sliding rail are provided between the pedal body and the floor body. Block; the slide rail is fixed to the bottom surface of the floor body; the slider is provided with a slide groove on the side facing the slide rail, the side of the slide block facing away from the slide groove and the upper surface of the pedal body In a fixed connection, the sliding groove of the sliding block is clamped outside the sliding rail and is slidably connected with the sliding rail.

According to an embodiment of the present invention, the slide rail is fixedly connected to the bottom surface of the floor body by a fastening bolt, and the slider is fixedly connected to the upper surface of the pedal body by a fastening bolt.

According to another embodiment of the present invention, a door lash compensator control method includes:

Receiving the extension or retraction signal of the door lash compensator, the controller controls the air pipe extending or retracting the intake port of the cylinder to be the extension or retraction according to the position of the piston of the cylinder. The retracted air inlet provides air, and the air cylinder is controlled to push the pedal body to extend horizontally along the bottom surface of the floor body to an open position or retract to a closed position.

A rail vehicle according to another embodiment of the present invention includes a driver's cab and the aforementioned door clearance compensator, the driver's cab is provided with a button for controlling the door clearance compensator control system; The air port and the retracted air inlet are respectively connected to the air supply unit of the rail vehicle through an air pipeline.

The one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

According to a valve lash compensator control system according to an embodiment of the present invention, the controller controls the extension of the intake port or retracts the intake port to control the extension of the piston according to the position of the cylinder piston detected by the sensor switch. To the designated position or retract to the designated position, so that the stroke of the cylinder can be controlled, and then the control of the telescopic stroke of the pedal body is realized. The control method is simple and the reliability is high. Once there is a failure that cannot be extended or retracted, it is easy Find the point of failure and solve it.

A door clearance compensator according to an embodiment of the present invention adopts a separately formed floor body and a pedal body, and is integrated with a cylinder to be integrally installed at the installation gap reserved on the floor of the door area of the vehicle body, forming an integral embedded structure, occupying space Small size, easy installation and high reliability. After installation, the upper surface of the floor body is the same as the floor in the passenger compartment, which matches the whole body of the car body. It reduces the steps at the door and improves the passability of equipment such as passengers or wheelchairs. ; And to facilitate the individual control of the door clearance compensator.

A rail vehicle according to an embodiment of the present invention is provided with the above-mentioned door gap compensator, so that the rail vehicle has all the advantages of the above-mentioned door gap compensator, which will not be repeated here.

A door clearance compensator according to an embodiment of the present invention includes:

The floor body is configured to be fixed and embedded in the installation gap reserved on the floor of the door area of the car body;

The pedal body is slidably connected to the bottom surface of the floor body;

The driving mechanism is configured to drive the pedal body to expand and contract horizontally along the floor body.

According to an embodiment of the present invention, a sliding rail and a sliding block that are slidably connected are provided between the pedal body and the floor body.

According to an embodiment of the present invention, the slide rail is fixed to the bottom surface of the floor body;

A sliding groove is provided on the side of the sliding block facing the sliding rail, the side of the sliding block facing away from the sliding groove is fixedly connected with the upper surface of the pedal body, and the sliding groove of the sliding block is clamped in the The sliding rail is outside and slidably connected with the sliding rail.

According to an embodiment of the present invention, a ball is sealed at the sliding connection between the slide rail and the slide groove, and a lubricant is provided in the sealed channel where the ball is provided;

The two sides of the sliding rail along its length direction are configured as internal concave surfaces.

According to an embodiment of the present invention, the bottom surface of the floor body is configured with a pair of linear guide grooves for installing the slide rail, and the cross-sectional shape of the linear guide groove is convex with a small top and a large bottom. The upper opening groove of the guide groove matches the slide rail, and the lower opening groove of the linear guide groove leaves a gap outside the slider;

A pair of the linear guide grooves are separately provided on both sides of the driving mechanism.

According to an embodiment of the present invention, an adjusting pad is provided or not provided between the slider and the pedal body.

According to an embodiment of the present invention, the slide rail is fixedly connected to the bottom surface of the floor body by a fastening bolt, and the slider is fixedly connected to the upper surface of the pedal body by a fastening bolt.

According to an embodiment of the present invention, the floor body and the pedal body are both extruded and formed of aluminum alloy hollow profiles, and a hollow cavity is formed in the floor body, and the bottom surface of the cavity is spaced apart by a row of parallel A quadrilateral hole, the connecting end of the fastening bolt is fixed with a screw seat, the shape of the screw seat is a parallelogram matching the parallelogram hole, and the width of the cavity matches the length of the screw seat The screw seat extends into the cavity along the length direction of the parallelogram hole, and rotates so that both sides of the length of the screw seat abut against the inner walls of both sides of the width of the cavity.

According to an embodiment of the present invention, the upper surface of the pedal body is formed with a pair of mounting interfaces symmetrical about the central axis of the pedal body at the position for connecting with the floor body, and the upper surface of the pedal body avoids A pair of the installation interfaces are formed with anti-skid patterns; the front end of the upper surface of the floor body is formed with a step for fitting with the lower rib of the door body.

According to an embodiment of the present invention, the driving mechanism is a cylinder, the cylinder includes a cylinder and a piston that expands and contracts along the cylinder, and the fixed end of the cylinder is connected to the rear of the floor body through a first pin. The end bottom surface is rotatably connected, the protruding end of the piston is rotatably connected to the bottom surface of the front end of the pedal body through a second pin shaft, the first pin shaft and the second pin shaft are arranged in parallel, and the first pin The axial directions of the shaft and the second pin shaft are perpendicular to the expansion and contraction direction of the piston.

According to an embodiment of the present invention, the cylinder block is provided with an extended air inlet, a retracted air inlet and a locked air inlet, the extended air inlet, the retracted air inlet and the The locked air inlets are respectively used to connect to the vehicle body air supply unit through a gas path.

According to an embodiment of the present invention, a throttle valve is provided at at least one of the extended air inlet, the retracted air inlet, and the locked air inlet.

According to an embodiment of the present invention, the cylinder is provided with a magnetic control switch, the magnetic body of the magnetic control switch is provided on the piston in the cylinder, and a pair of the magnetic The distance between the two movable contacts is equal to the preset telescopic stroke of the cylinder, and one of the movable contacts corresponds to the piston that is not extended and is provided with the magnetic body Location settings.

A rail vehicle according to another embodiment of the present invention includes a car body and the aforementioned door clearance compensator, and the door area floor of the car body is reserved with an installation gap for installing the door clearance compensator, so The rear end of the floor body is fixedly installed on the cross beam of the vehicle body and butted with the floor of the vehicle body, and the upper surface of the floor body is flush with the upper surface of the floor of the vehicle body.

According to an embodiment of the present invention, the installation gap is opened from the door area floor to the side beam of the car body, the front end of the floor body is flush with the outer side of the side beam, and the floor body The rear end of the vehicle body is provided with a gasket at the butt joint with the floor of the vehicle body, and the upper surface of the floor body is laid with a floor cloth consistent with the floor cloth laid on the upper surface of the floor of the vehicle body. The additional aspects and advantages of the present invention will be partly given in the following description, and partly will become obvious from the following description, or be understood through the practice of the present invention.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic structural view showing the extended state of the floor body and the pedal body of the door clearance compensator according to the embodiment of the present invention;

Fig. 2 is a schematic structural view showing the retracted state of the floor body and the pedal body of the door clearance compensator according to the embodiment of the present invention;

3 is a schematic structural view showing the extended state of the driving mechanism (cylinder) of the door clearance compensator according to the embodiment of the present invention;

4 is a structural diagram showing the retracted state of the driving mechanism (cylinder) of the door clearance compensator according to the embodiment of the present invention;

5 is a schematic front view of the sliding rail and the sliding block in the door clearance compensator according to the embodiment of the present invention;

6 is a schematic side view of the sliding rail and the sliding block in the door clearance compensator according to the embodiment of the present invention;

FIG. 7 is a schematic front view showing the connection between the floor body and the pedal body through the sliding rail and the sliding block in the door clearance compensator according to the embodiment of the present invention;

8 is a schematic front view of the door clearance compensator according to the embodiment of the present invention showing that the sliding rail and the sliding block are not installed between the floor body and the pedal body;

Fig. 9 is a cross-sectional structural diagram showing the door clearance compensator in a retracted state in the rail vehicle according to the embodiment of the present invention;

Fig. 10 is a cross-sectional structural diagram showing the door clearance compensator in an extended state in the rail vehicle according to the embodiment of the present invention.

Reference signs:

10. Floor body; 11. Linear guide groove; 20. Pedal body; 30. Cylinder; 31. Extend the air inlet; 32. Retract the air inlet; 33. Lock the air inlet; 40. First pin 50. The second pin shaft; 60. Magnetic control switch; 61. Signal cable; 70. Slide rail; 80. Slider; 90. Adjusting washer; 100. Fastening bolt; 110. Screw seat; 120. Crossbeam ; 130, car body floor; 140, side beam.

Detailed ways

The implementation of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right" , "Vertical", "horizontal", "top", "bottom", "inner", "outer" and other directions or positional relations are based on the directions or positional relations shown in the drawings, only for the convenience of description The embodiments of the invention and the simplified description do not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection. Or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood in specific situations.

In the embodiments of the present invention, unless otherwise clearly defined and defined, the first feature “on” or “under” the second feature may be in direct contact with the first and second features, or the first and second features may pass through the middle. Indirect media contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or diagonally above the second feature, or it simply means that the level of the first feature is higher than the second feature. The “below”, “below” and “below” of the second feature of the first feature may be that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , Structures, materials, or features are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradicting each other.

As shown in FIGS. 1 to 10, a door lash compensator control system provided by an embodiment of the present invention includes a cylinder 30, an induction switch, and a controller.

Specifically, the air cylinder 30 is used to drive the pedal body 20 to expand and contract horizontally along the bottom surface of the floor body 10. The air cylinder 30 includes a cylinder body and a piston that expands and contracts along the cylinder body. The cylinder body is provided with an extended intake port 31 and a retracted intake port. 32. The extended intake port 31 and the retracted intake port 32 are respectively connected with air pipes for connecting to the air supply unit; when air is supplied to the extended intake port 31 of the cylinder 30, the piston of the cylinder 30 extends , Push the pedal body 20 out toward the platform, and reduce the gap between the platform and the vehicle after the pedal body 20 is in place; when air is supplied to the retracted air inlet 32, the piston moves toward the vehicle body, driving the pedal body 20 to retract The car body does not exceed the vehicle limit.

The induction switch is arranged on the cylinder 30 to sense the position of the piston. For example, the piston is in an unextended position or an incompletely extended position or a fully extended position. The specific position of the piston is detected by the inductive switch to facilitate control of the supply Gas time.

The controller is used to control the extending intake port 31 or retracting the intake port 32 to control the piston to extend to a specified position or retract to a specified position according to the position of the piston detected by the sensor switch. The designated position can be set in advance, so that the cylinder stroke can be controlled to realize the control of the telescopic stroke of the pedal body 20. The control method is simple and the reliability is high. Once there is a failure that cannot be extended or retracted, it is easy Find the point of failure and solve it.

According to an embodiment of the present invention, throttle valves are respectively provided at the extended intake port 31 and the retracted intake port 32 to facilitate the adjustment of the intake air volume, and the throttle valves are signally connected to the controller. By adjusting the opening of the throttle valve, the extension thrust or retraction force of the piston can be quickly adjusted. In the same way, the adjustment of the expansion and contraction speed of the piston can also be realized by setting a throttle valve.

It should be noted that the "signal connection" can be a wired connection or a wireless connection.

According to an embodiment of the present invention, a lock air inlet 33 is further provided on the cylinder, and the lock air inlet 33 is connected with an air pipeline for connecting to the air supply unit. In other words, the cylinder block is provided with an extended intake port 31, a retracted intake port 32, and a closed intake port 33. The extended intake port 31 is provided at the rear end of the cylinder, that is, at the rear end of the piston. The retracted intake port 32 is provided at the front end of the cylinder block, and the locking intake port 33 is provided at the front end of the cylinder block where the cylinder port is provided with a spring plug. The extended intake port 31, the retracted intake port 32 and the lock The closed air inlets 33 are respectively used to connect to the air supply unit of the vehicle body through an air pipeline, so that the air supply unit of the vehicle body itself can supply air to the cylinder 30, which is convenient to use. When air is supplied to the extended air inlet 31, the piston is extended; when air is supplied to the retracted air inlet 32, the piston is retracted. The safety can be increased by setting the air inlet 33 to be locked. For example, the prerequisite for the normal operation of the extended air inlet 31 and the retracted air inlet 32 is that the air can be supplied normally at the locked air inlet 33 and the air inlet can be locked. 33 can resist the spring plug when the air is supplied, so that the air pipeline is connected. At this time, the piston can be expanded and contracted according to specific needs. When the air inlet 33 is locked, the piston is locked and cannot be expanded or contracted. Therefore, in the event of an emergency or malfunction, the air can be directly shut off to the locked air inlet 33. At this time, the piston stops at the same place, and the passenger will not step on the pedal body 20, and the pedal body 20 will be stepped on by mistake, so as to improve safety.

According to an embodiment of the present invention, solenoid valves are provided at the inlets of the air pipe extending from the air inlet 31, the air pipe retracting the air pipe 32, and the air pipe closing the air inlet 33. The valves are all signal connected to the controller. The on-off of the solenoid valve corresponds to the on and off of the air pipeline, so that the on-off of the air pipeline can be conveniently controlled by controlling the solenoid valve. For example, when the vehicle arrives at the station, the driver's cab operates the door lash compensator extension button, and the solenoid valve on the air pipe connected to the extended air inlet opens. The air pipe receives the wind pressure signal and is connected to the air cylinder extension air inlet. The air pipeline is opened and the piston extends to achieve the extension of the pedal body of the door lash compensator; when the vehicle starts, the driver's cab operates the door lash compensator retract button, the corresponding solenoid valve opens, and the air corresponding to the air inlet is retracted The pipeline receives the wind pressure signal, the air pipeline connected with the retracted air inlet is opened, and the cylinder piston retracts to realize the retracting of the pedal body of the door lash compensator.

According to an embodiment of the present invention, the induction switch is a magnetic control switch 60. When the piston inside the cylinder 30 passes, the magnetic control switch 60 receives the corresponding signal and can provide the vehicle with the specific position of the piston of the cylinder 30, and the vehicle passes the piston at the same time. The position controls the air supply volume of the three air inlets of the cylinder 30 to realize the telescopic control of the pedal body 20. Specifically, the magnetic control switch 60 includes a magnetic body (for example, a magnet) and a movable contact that interacts with the magnetic body. 60 moving contacts, the distance between the two moving contacts is equal to the preset telescopic stroke of the cylinder 30, one of the moving contacts is set corresponding to the position of the magnetic body when the piston is not extended, and the other moving contact is separated A telescopic stroke is set close to the front end of the cylinder, and the signal cables 61 of the two moving contacts are connected to the controller. When the piston is not extended, the magnetic body triggers the moving contact to generate a signal and sends it to the vehicle body control system. The controller triggers the movable contact to generate a signal when the piston extends to the magnetic body facing another movable contact and sends it to the vehicle body control system, whereby the control system controls the piston to stop at the position of the corresponding stroke. When it is used in different vehicles and the required stroke of the cylinder needs to be adjusted, just adjust the distance between the two moving contacts. For example, the original cylinder stroke is 200mm, and now it needs to be adjusted to 250mm. Change the distance between the two moving contacts. It can be adjusted from 200mm to 250mm without changing the cylinder. Thereby, the control of the telescopic stroke of the pedal body is conveniently realized, so that the telescopic distance of the pedal body is adjustable.

In addition, when a certain vertical load is exceeded above the pedal body 20, the control system controls the piston to stop working to ensure the safety of personnel above the pedal body 20.

According to an embodiment of the present invention, parallel pin holes are provided at both ends of the cylinder 30, and the pin holes are arranged horizontally. The cylinder 30 includes a cylinder body and a piston that expands and contracts along the cylinder body. The bottom surface of the rear end of the floor body 10 is rotatably connected, and the protruding end of the piston is rotatably connected to the bottom surface of the front end of the pedal body 20 through the second pin 50. Both the bottom surface of the rear end of the floor body 10 and the front bottom surface of the pedal body 20 are formed with mounting seats. The first pin 40 and the second pin 50 respectively pass through the rotating connection hole of the mounting seat and the corresponding pin hole to install the cylinder 30. After the cylinder 30 is installed, one end is connected to the floor body 10, and the other end is connected to the pedal body 20. The first pin shaft 40 and the second pin shaft 50 are parallel and arranged horizontally, and the axial directions of the first pin shaft 40 and the second pin shaft 50 are perpendicular to the direction of expansion and contraction of the piston, so that the pedal body 20 has a rotating direction along a vertical plane. Ability, when there is a vertical relative displacement between the pedal body 20 and the floor body 10, the cylinder 30 can rotate along the pin shaft without internal stress.

Specifically, as shown in FIGS. 1 to 4, the door lash compensator of the embodiment of the present invention includes a floor body 10 and a pedal body 20, and the aforementioned door lash compensator control system. Further, the floor body 10 is configured to be fixedly embedded in the installation notch reserved for the floor of the door area of the vehicle body. The shape of the floor body 10 can be square or rectangular, and the installation notch is a square suitable for the size and shape of the floor body 10. Or rectangular, so that the floor body 10 can better match the floor of the door area of the vehicle body after installation.

The pedal body 20 is slidably connected to the bottom surface of the floor body 10. Specifically, the pedal body 20 can slide linearly along the floor body 10, and the sliding direction is a direction toward the train station platform.

In this embodiment, the "front end of the floor body 10" and the "front end of the pedal body 20" are the ends close to the platform, and the "rear end of the floor body 10" and "the rear end of the pedal body 20" are the ends away from the platform.

The air cylinder 30 drives the pedal body 20 to expand and contract horizontally along the floor body 10, and the telescopic method is highly reliable. The air cylinder 30 provides power for the linear sliding of the pedal body 20, so that when the pedal body 20 needs to be extended, the air cylinder 30 provides the power to extend. The driving pedal body 20 extends. When the pedal body 20 needs to be retracted, the air cylinder 30 provides the power to retract to drive the pedal body 20 to retract.

The door clearance compensator of this embodiment is embedded in the installation gap as an independent whole, which occupies a small space size, is convenient to install, and has high reliability. After installation, the upper surface of the floor body 10 is the same as the floor of the passenger compartment, The overall matching degree of the body is high, the steps at the doorway are reduced, the passability of passengers or wheelchairs and other equipment is improved; and the individual control of the door clearance compensator is convenient.

As shown in Figures 5 to 8, according to an embodiment of the present invention, a sliding rail 70 and a sliding block 80 are provided between the pedal body 20 and the floor body 10 in a sliding manner. When the pedal body 20 slides, the sliding block 80 follows the sliding rail. 70 slides, and the sliding rail 70 is provided to guide the slider 80, which can ensure the stability and smoothness of the pedal body 20 when sliding. Further, the slide rail 70 is fixed to the bottom surface of the floor body 10, and the specific fixing method may be a fastener fixed connection or other fixed connection forms; the sliding grooves are provided on the side of the slider 80 facing the sliding rails 70, and the sliding grooves 80 are away from the sliding grooves. The side of the sliding block is fixedly connected with the upper surface of the pedal body 20. The specific fixing method can be a fastener fixed connection or other fixed connection forms. The sliding groove of the slider 80 is clamped outside the sliding rail 70 and slidably connected with the sliding rail 70 The groove can wrap the middle and lower parts of the slider 80, so that after the slider 80 is installed, there is a certain gap between the slider 80 and the bottom surface of the floor body 10, so as to avoid friction between the slider 80 and the floor body 10 during the sliding process.

According to an embodiment of the present invention, the sliding connection between the slide rail 70 and the slide groove is sealed with balls, and a lubricant is provided in the sealed channel where the balls are provided; the slide rail 70 and the slider 80 are in contact with each other through the balls, The sliding block 80 has rolling friction when moving on the slide rail 70, and the resistance is small, and the pedal body 20 will not have a large lateral displacement when extending and retracting, which improves the stability of the door clearance compensator; adopts balls Lubrication is used in the sealed channel to reduce the maintenance cycle. The lubricant can be lubricating oil or grease. Specifically, one or two rows of balls can be arranged at the connection between the sliding rail 70 and the sliding block 80. First, grooves for installing the balls are provided at the relative positions of the sliding rail 70 and the sliding block 80, and the length of the grooves is along the sliding direction. , The two grooves are opposite to form a sealed channel, half of the ball is located in the groove of the slide rail 70, and half of the ball is located in the groove of the slide block 80, connecting the slide rail 70 and the slide block 80 together; the sealing process avoids lubricant The loss reduces the frequency of increasing the lubricant, and can also prevent impurities such as dust from entering the joint between the sliding rail 70 and the sliding block 80.

In order to reduce or avoid the sliding friction caused by the sliding groove and the sliding rail 70 to cause the temperature to rise during sliding, the sliding rail 70 is configured as an inner concave surface along its length direction, and the inner wall of the sliding groove and the sliding rail 70 exist at the inner concave surface. gap.

According to an embodiment of the present invention, the bottom surface of the floor body 10 is configured with a pair of linear guide grooves 11 for installing the slide rail 70, and the cross-sectional shape of the linear guide groove 11 is a convex shape with a small top and a large bottom, that is, the linear guide groove 11 The opening of the lower opening groove is larger than the opening of the upper opening groove, and the lower opening groove is connected with the upper opening groove, the upper opening groove of the linear guide groove 11 matches the slide rail 70, and the lower opening groove of the linear guide groove 11 is connected to the slider 80 There is a gap outside; by directly forming the linear guide groove 11 on the floor body 10, when the sliding rail 70 is installed, the sliding rail 70 is directly inserted into the upper opening groove and the upper opening groove is interference fit, without adjusting the position of the sliding rail 70, etc. , The installation is convenient, the positioning effect is good, and the slide rail 70 is stable and reliable after installation. The pair of linear guide grooves 11 are arranged in parallel, so that the pair of slide rails 70 after installation are also parallel to each other.

A pair of linear guide grooves 11 are separately arranged on both sides of the cylinder. The cylinder can be located in the middle of the door clearance compensator. The pair of linear guide grooves 11 can be symmetrically arranged with respect to the cylinder, so that the pedal body 20 slides more smoothly.

According to an embodiment of the present invention, an adjustment pad 90 is provided or not provided between the slider 80 and the pedal body 20, that is, when the distance between the pedal body 20 and the floor body 10 does not need to be adjusted, there is no need to Install the adjusting washer 90. When the distance between the pedal body 20 and the floor body 10 needs to be adjusted, the pedal body can be adjusted by increasing or decreasing the adjusting washer 90 between the pedal body 20 and the slider 80 when the slider 80 is installed. The height difference between 20 and the floor body 10. The height difference between the pedal body 20 and the floor body 10 is the sum of the thickness of the floor body 10 and the gap between the pedal body 20 and the floor body 10. The thickness of the floor body 10 itself is small, and the difference between the pedal body 20 and the floor body 10 The gap between the two is adjustable, so that the overall height difference between the pedal body 20 and the floor body 10 is relatively small, which can meet the requirements of getting on and off of special equipment such as wheelchairs.

In a specific embodiment, the slide rail 70 is fixedly connected to the bottom surface of the floor body 10 through the fastening bolt 100, and the slider 80 is fixedly connected to the upper surface of the pedal body 20 through the fastening bolt 100 to ensure the connection strength and connection reliability.

According to an embodiment of the present invention, both the floor body 10 and the pedal body 20 are extruded from aluminum alloy hollow profiles, which have high strength, light weight, and good forming effect, and various required interfaces can be formed at one time.

Further, a hollow cavity is formed in the floor body 10, and the bottom surface of the cavity is spaced with a row of parallelogram holes. The length direction of the parallelogram holes can be along the length direction of the cavity to fasten the connecting end of the bolt 100 (away from the tight One end of the head of the fixing bolt 100) is fixed with a screw seat 110. The shape of the screw seat 110 is a parallelogram matching the parallelogram hole. The width of the cavity matches the length of the screw seat 110. The screw seat 110 is along the parallelogram hole. Extends into the cavity and rotates at a certain angle so that the two sides of the length of the screw seat 110 are against the inner walls of both sides of the width of the cavity, so that the screw seat 110 is clamped in the cavity to ensure that the fastening bolt 100 is installed After the stability and firmness. In addition, the shape of the screw seat 110 may also be an ellipse, which can also achieve the same function.

When the screw seat 110 is subject to a large vertical impact, the profile ribs can effectively support the structure, and the structure will not cause abnormal stress concentration due to the cavity at this location.

Of course, the specific number of fastening bolts 100 can be selected according to actual needs. The fastening bolt 100 adopts this connection form, which can realize quick disassembly and assembly and convenient replacement. Correspondingly, the slide rail 70 is provided with a plurality of through holes for the fastening bolt 100 to pass through at intervals along its length. In order to prevent the head of the fastening bolt 100 from being exposed, the through hole can be set as a counterbore. The head of the bolt 100 is located in the countersunk hole.

According to an embodiment of the present invention, the upper surface of the pedal body 20 is formed with a pair of mounting interfaces symmetrical about the center axis of the pedal body 20 at the position for connecting with the floor body 10, and the slider 80 is installed in the mounting interface, and With the fastening bolt 100 fixedly connected to the pedal body 20, the upper surface of the pedal body 20 avoids a pair of installation interfaces and is formed with anti-skid patterns to increase the anti-skid effect and avoid slipping; the front end of the upper surface of the floor body 10 is formed with a door The lower rib of the body is attached to the step, so that after the door is closed, the lower rib of the door body is attached to the step. On the one hand, the sealing effect is increased, and on the other hand, there is space for the lower rib to be placed. After the steps are attached, the outer side of the lower rib is flush with the front end of the floor body 10.

On the other hand, according to the door lash compensator control method of the embodiment of the present invention,

When receiving the door lash compensator extension or retraction signal, for example, after the vehicle arrives at the station, the driver’s cab operates the door lash compensator extension button, and the door lash compensator control system receives the door lash compensator extension signal and extends it in. The solenoid valve on the air pipeline connected to the air port is opened, and the air pipeline receives the wind pressure signal, and the air pipeline connected to the air cylinder extending out of the air inlet opens, and the piston extends to realize the extension of the pedal body of the door clearance compensator. When the vehicle is started, the driver's cab operates the door lash compensator retract button, the door lash compensator control system receives the door lash compensator retract signal, the corresponding solenoid valve opens, and the air pipe corresponding to the retracted air inlet receives it. Wind pressure signal, the air pipeline connected to the retracted intake port is opened, and the cylinder piston retracts to realize the retraction of the door lash compensator pedal body; the controller controls the cylinder to extend the intake port or retract according to the position of the cylinder piston The air pipe of the air intake port supplies air for extending the air intake port or retracting the air intake port. The control cylinder pushes the pedal body to extend horizontally along the bottom surface of the floor body to the open position or retract to the closed position, where the open position is In order for the pedal body to extend to the maximum stroke, the closed position refers to the position where the pedal body is retracted into the vehicle body without occupying the space outside the vehicle.

On the other hand, a rail vehicle according to an embodiment of the present invention includes a driver's cab and the aforementioned door lash compensator. The driver's cab is provided with a button for controlling the door lash compensator control system, and specifically may be provided with a control extending air inlet The extended button and the retract button for controlling the retracted air inlet. The extended air inlet and the retracted air inlet are respectively connected to the air supply unit of the rail vehicle through an air pipeline, and the air supply unit of the vehicle is used to supply air , No need to set up other air supply units, easy to set up and easy to operate.

As shown in Figures 9 and 10, the door area floor of the vehicle of this embodiment is reserved with an installation gap for installing the door clearance compensator. In the docking, the vehicle body cross beam 120 carries the door clearance compensator, which has strong bearing capacity and high reliability; the upper surface of the floor body 10 is flush with the upper surface of the vehicle body floor, so that the door clearance compensator has a good match with the vehicle after installation. The steps at the doorway are reduced, and the passability is improved. The working principle of the door clearance compensator is to push the pedal body 20 out when the piston of the cylinder 30 is extended to compensate for the gap between the vehicle and the platform. When in place, the piston is locked in the extended position; when the piston of the cylinder 30 is retracted, the pedal body 20 is pulled Back, it is hidden under the floor body 10, consistent with the contour of the vehicle body, and will not invade the boundary. After the pedal body 20 is extended and retracted, the air inlet 33 is locked and the air pressure is closed. After the air pressure is closed, the piston of the cylinder 30 is in the locked position and cannot be extended or contracted, ensuring safety. The door clearance compensator of this embodiment is embedded in the installation gap as an independent whole, which occupies a small space size, is convenient to install, and has high reliability. After installation, the upper surface of the floor body 10 is the same as the floor of the passenger compartment, The overall matching degree of the body is high, the steps at the doorway are reduced, and the passability of equipment such as passengers or wheelchairs is improved; and it is convenient for the independent control of the door clearance compensator control system.

According to an embodiment of the present invention, the installation gap is opened from the door area floor to the side beam 140 of the vehicle body, and the front end of the floor body 10 is flush with the outer side of the side beam 140, and does not occupy the space in the vehicle after installation. The floor body 10 The rear end and the floor of the car body are equipped with a sealing gasket, which has good sealing performance. The upper surface of the floor body 10 is covered with a floor cloth that is consistent with the floor cloth laid on the floor of the car body, so that the door clearance compensator and The vehicle body floor 130 is integrated and has a high degree of matching.

Another embodiment of the present invention provides a door clearance compensator, which includes a floor body 10, a pedal body 20 and a driving mechanism.

Specifically, the floor body 10 is configured to be fixedly embedded in the installation notch reserved for the floor of the vehicle body door area. The shape of the floor body 10 can be square or rectangular, and the installation notch is a square suitable for the size and shape of the floor body 10. Or rectangular, so that the floor body 10 can better match the floor of the door area of the vehicle body after installation.

The pedal body 20 is slidably connected to the bottom surface of the floor body 10. Specifically, the pedal body 20 can slide linearly along the floor body 10, and the sliding direction is a direction toward the train station platform.

This embodiment stipulates that the "front end of the floor body 10" and the "front end of the pedal body 20" are the ends close to the platform, and the "rear end of the floor body 10" and the "rear end of the pedal body 20" are the ends away from the platform.

The driving mechanism is configured to drive the pedal body 20 to expand and contract horizontally along the floor body 10, and the telescopic method is highly reliable. The driving mechanism provides power for the linear sliding of the pedal body 20, so that when the pedal body 20 needs to be extended, the driving mechanism provides extension When the pedal body 20 needs to be retracted, the driving mechanism provides the retracting power to drive the pedal body 20 to retract.

The door clearance compensator of this embodiment is embedded in the installation gap as an independent whole, which occupies a small space size, is convenient to install, and has high reliability. After installation, the upper surface of the floor body 10 is the same as the floor of the passenger compartment, The overall matching degree of the body is high, the steps at the doorway are reduced, the passability of passengers or wheelchairs and other equipment is improved; and the individual control of the door clearance compensator is convenient.

As shown in Figures 5 to 8, according to an embodiment of the present invention, a sliding rail 70 and a sliding block 80 are provided between the pedal body 20 and the floor body 10 in a sliding manner. When the pedal body 20 slides, the sliding block 80 follows the sliding rail. 70 slides, and the sliding rail 70 is provided to guide the slider 80, which can ensure the stability and smoothness of the pedal body 20 when sliding. Further, the slide rail 70 is fixed to the bottom surface of the floor body 10, and the specific fixing method may be a fastener fixed connection or other fixed connection forms; the sliding grooves are provided on the side of the slider 80 facing the sliding rails 70, and the sliding grooves 80 are away from the sliding grooves. The side of the sliding block is fixedly connected with the upper surface of the pedal body 20. The specific fixing method can be a fastener fixed connection or other fixed connection forms. The sliding groove of the slider 80 is clamped outside the sliding rail 70 and slidably connected with the sliding rail 70 The groove can wrap the middle and lower parts of the slider 80, so that after the slider 80 is installed, there is a certain gap between the slider 80 and the bottom surface of the floor body 10, so as to avoid friction between the slider 80 and the floor body 10 during the sliding process.

According to an embodiment of the present invention, the sliding connection between the slide rail 70 and the slide groove is sealed with balls, and a lubricant is provided in the sealed channel where the balls are provided; the slide rail 70 and the slider 80 are in contact with each other through the balls, The sliding block 80 has rolling friction when moving on the slide rail 70, and the resistance is small, and the pedal body 20 will not have a large lateral displacement when extending and retracting, which improves the stability of the door clearance compensator; adopts balls Lubrication is used in the sealed channel to reduce the maintenance cycle. The lubricant can be lubricating oil or grease. Specifically, one or two rows of balls can be arranged at the connection between the sliding rail 70 and the sliding block 80. First, grooves for installing the balls are provided at the relative positions of the sliding rail 70 and the sliding block 80, and the length of the grooves is along the sliding direction. , The two grooves are opposite to form a sealed channel, half of the ball is located in the groove of the slide rail 70, and half of the ball is located in the groove of the slide block 80, connecting the slide rail 70 and the slide block 80 together; the sealing process avoids lubricant The loss reduces the frequency of increasing the lubricant, and can also prevent impurities such as dust from entering the joint between the sliding rail 70 and the sliding block 80.

In order to reduce or avoid the sliding friction caused by the sliding groove and the sliding rail 70 to cause the temperature to rise during sliding, the sliding rail 70 is configured as an inner concave surface along its length direction, and the inner wall of the sliding groove and the sliding rail 70 exist at the inner concave surface. gap.

According to an embodiment of the present invention, the bottom surface of the floor body 10 is configured with a pair of linear guide grooves 11 for installing the slide rail 70, and the cross-sectional shape of the linear guide groove 11 is a convex shape with a small top and a large bottom, that is, the linear guide groove 11 The opening of the lower opening groove is larger than the opening of the upper opening groove, and the lower opening groove is connected with the upper opening groove, the upper opening groove of the linear guide groove 11 matches the slide rail 70, and the lower opening groove of the linear guide groove 11 is connected to the slider 80 There is a gap outside; by directly forming the linear guide groove 11 on the floor body 10, when the sliding rail 70 is installed, the sliding rail 70 is directly inserted into the upper opening groove and the upper opening groove is interference fit, without adjusting the position of the sliding rail 70, etc. , The installation is convenient, the positioning effect is good, and the slide rail 70 is stable and reliable after installation. The pair of linear guide grooves 11 are arranged in parallel, so that the pair of slide rails 70 after installation are also parallel to each other.

A pair of linear guide grooves 11 are separately provided on both sides of the driving mechanism. The driving mechanism may be in the middle of the door clearance compensator. The pair of linear guide grooves 11 may be symmetrically arranged with respect to the driving mechanism, so that the pedal body 20 slides more smoothly.

According to an embodiment of the present invention, an adjustment pad 90 is provided or not provided between the slider 80 and the pedal body 20, that is, when the distance between the pedal body 20 and the floor body 10 does not need to be adjusted, there is no need to Install the adjusting washer 90. When the distance between the pedal body 20 and the floor body 10 needs to be adjusted, the pedal body can be adjusted by increasing or decreasing the adjusting washer 90 between the pedal body 20 and the slider 80 when the slider 80 is installed. The height difference between 20 and the floor body 10. The height difference between the pedal body 20 and the floor body 10 is the sum of the thickness of the floor body 10 and the gap between the pedal body 20 and the floor body 10. The thickness of the floor body 10 itself is small, and the difference between the pedal body 20 and the floor body 10 The gap between the two is adjustable, so that the overall height difference between the pedal body 20 and the floor body 10 is relatively small, which can meet the requirements of getting on and off of special equipment such as wheelchairs.

In a specific embodiment, the slide rail 70 is fixedly connected to the bottom surface of the floor body 10 through the fastening bolt 100, and the slider 80 is fixedly connected to the upper surface of the pedal body 20 through the fastening bolt 100 to ensure the connection strength and connection reliability.

According to an embodiment of the present invention, both the floor body 10 and the pedal body 20 are extruded from aluminum alloy hollow profiles, which have high strength, light weight, and good forming effect, and various required interfaces can be formed at one time.

Further, a hollow cavity is formed in the floor body 10, and the bottom surface of the cavity is spaced with a row of parallelogram holes. The length direction of the parallelogram holes can be along the length direction of the cavity to fasten the connecting end of the bolt 100 (away from the tight One end of the head of the fixing bolt 100) is fixed with a screw seat 110. The shape of the screw seat 110 is a parallelogram matching the parallelogram hole. The width of the cavity matches the length of the screw seat 110. The screw seat 110 is along the parallelogram hole. Extends into the cavity and rotates at a certain angle so that the two sides of the length of the screw seat 110 are against the inner walls of both sides of the width of the cavity, so that the screw seat 110 is clamped in the cavity to ensure that the fastening bolt 100 is installed After the stability and firmness. In addition, the shape of the screw seat 110 may also be an ellipse, which can also achieve the same function.

When the screw seat 110 is subject to a large vertical impact, the profile ribs can effectively support the structure, and the structure will not cause abnormal stress concentration due to the cavity at this location.

Of course, the specific number of fastening bolts 100 can be selected according to actual needs. The fastening bolt 100 adopts this connection form, which can realize quick disassembly and assembly and convenient replacement. Correspondingly, the slide rail 70 is provided with a plurality of through holes for the fastening bolt 100 to pass through at intervals along its length. In order to prevent the head of the fastening bolt 100 from being exposed, the through hole can be set as a counterbore. The head of the bolt 100 is located in the countersunk hole.

According to an embodiment of the present invention, the upper surface of the pedal body 20 is formed with a pair of mounting interfaces symmetrical about the center axis of the pedal body 20 at the position for connecting with the floor body 10, and the slider 80 is installed in the mounting interface, and With the fastening bolt 100 fixedly connected to the pedal body 20, the upper surface of the pedal body 20 avoids a pair of installation interfaces and is formed with anti-skid patterns to increase the anti-skid effect and avoid slipping; the front end of the upper surface of the floor body 10 is formed with a door The lower rib of the body is attached to the step, so that after the door is closed, the lower rib of the door body is attached to the step. On the one hand, the sealing effect is increased, and on the other hand, there is space for the lower rib to be placed. After the steps are attached, the outer side of the lower rib is flush with the front end of the floor body 10.

According to an embodiment of the present invention, the driving mechanism is a cylinder 30. Both ends of the cylinder 30 are provided with parallel pin holes, and the pin holes are arranged horizontally. The cylinder 30 includes a cylinder body and a piston that expands and contracts along the cylinder body. The first pin 40 is rotatably connected to the bottom surface of the rear end of the floor body 10, the protruding end of the piston is rotatably connected to the bottom surface of the front end of the pedal body 20 through the second pin 50, and the bottom surface of the rear end of the floor body 10 is connected to the front end of the pedal body 20 A mounting seat is formed on the bottom surface. The first pin shaft 40 and the second pin shaft 50 respectively pass through the rotating connection hole of the mounting seat and the corresponding pin hole to install the cylinder 30. After the cylinder 30 is installed, one end is connected to the floor body 10, and the other end Connected to the pedal body 20. The first pin shaft 40 and the second pin shaft 50 are parallel and arranged horizontally, and the axial directions of the first pin shaft 40 and the second pin shaft 50 are perpendicular to the direction of expansion and contraction of the piston, so that the pedal body 20 has a rotating direction along a vertical plane. Ability, when there is a vertical relative displacement between the pedal body 20 and the floor body 10, the cylinder 30 can rotate along the pin shaft without internal stress.

According to an embodiment of the present invention, the cylinder block is provided with an extended intake port 31, a retracted intake port 32 and a locked intake port 33. The extended intake port 31 is provided at the rear end of the cylinder, that is, at the piston At the rear end of the cylinder, the retracted intake port 32 is provided at the front end of the cylinder block, and the locking intake port 33 is provided at the front end of the cylinder block where the cylinder port is provided with a spring plug. The port 32 and the locked air inlet 33 are respectively used to connect to the air supply unit of the vehicle body through a gas path, so that the air supply unit of the vehicle body can supply air to the cylinder 30, which is convenient to use. When air is supplied to the extended air inlet 31, the piston is extended; when air is supplied to the retracted air inlet 32, the piston retracts; the premise for the normal operation of the extended air inlet 31 and the retracted air inlet 32 is The air can be normally supplied at the locked air inlet 33, and the spring plug can be pushed away when the air is supplied by the air inlet 33, so that the air path is connected. The piston is locked when inflated and cannot be extended or contracted. Therefore, in the event of an emergency or failure, the lock air inlet 33 can be directly shut off. At this time, the piston stops at the same place, and the passenger will not step on the pedal body 20 and step on the air, so as to improve safety.

According to an embodiment of the present invention, a throttle valve is provided at at least one of the extended intake port 31, the retracted intake port 32, and the locked intake port 33. For example, a throttle valve may be provided at the extended intake port. 31. Both the retracted air inlet 32 and the locked air inlet are provided with a throttle valve, and a throttle valve can also be provided at one or two of the air inlets. The specific settings can be selected according to needs. The adjustment of the expansion and contraction speed of the piston can be realized by setting a throttle valve.

According to an embodiment of the present invention, the cylinder 30 is provided with a magnetic control switch 60. When the piston inside the cylinder 30 passes, the magnetic control switch 60 receives the corresponding signal and can provide the vehicle with the specific position of the piston of the cylinder 30 while the vehicle passes The position of the piston controls the air supply volume of the three air intake ports of the cylinder 30 to realize the expansion and contraction control of the pedal body 20 of the door lash compensator. Specifically, the magnetic control switch 60 includes a magnetic body (for example, a magnet) and a movable contact that interacts with the magnetic body. 60 moving contacts, the distance between the two moving contacts is equal to the preset telescopic stroke of the cylinder 30, one of the moving contacts is set corresponding to the position of the magnetic body when the piston is not extended, and the other moving contact is separated A telescopic stroke is set close to the front end of the cylinder. When the piston is not extended, the magnetic body triggers the movable contact to generate a signal and send it to the vehicle body control system. When the piston extends to the magnetic body and opposes another movable contact, it is triggered The moving contact generates a signal and sends it to the vehicle body control system, whereby the control system controls the piston to stop at the position of the corresponding stroke.

In addition, when a certain vertical load is exceeded above the pedal body 20, the control system controls the piston to stop working to ensure the safety of personnel above the pedal body 20.

On the other hand, a rail vehicle according to an embodiment of the present invention, as shown in Figs. 9 and 10, includes a car body and the aforementioned door clearance compensator. The door area floor of the car body is reserved for installing the door clearance compensator. For the installation gap, the rear end of the floor body 10 is fixedly installed on the cross beam 120 of the car body and butted with the floor of the car body. The car body cross beam 120 carries the door clearance compensator, which has strong bearing capacity and high reliability; the upper part of the floor body 10 The surface is flush with the upper surface of the floor of the vehicle body, so that the door clearance compensator has a good match with the vehicle after installation, reduces the steps at the doorway, and improves the passability. The working principle of the door clearance compensator is to push the pedal body 20 out when the piston of the cylinder 30 is extended to compensate for the gap between the vehicle and the platform. When in place, the piston is locked in the extended position; when the piston of the cylinder 30 is retracted, the pedal body 20 is pulled Back, it is hidden under the floor body 10, consistent with the contour of the vehicle body, and will not invade the boundary. After the pedal body 20 is extended and retracted, the air inlet 33 is locked and the air pressure is closed. After the air pressure is closed, the piston of the cylinder 30 is in the locked position and cannot be extended or contracted, ensuring safety. The door clearance compensator of this embodiment is embedded in the installation gap as an independent whole, which occupies a small space size, is convenient to install, and has high reliability. After installation, the upper surface of the floor body 10 is the same as the floor of the passenger compartment, The overall matching degree of the body is high, the steps at the doorway are reduced, the passability of passengers or wheelchairs and other equipment is improved; and the individual control of the door clearance compensator is convenient.

According to an embodiment of the present invention, the installation gap is opened from the door area floor to the side beam 140 of the vehicle body, and the front end of the floor body 10 is flush with the outer side of the side beam 140, and does not occupy the interior space of the vehicle after installation. The rear end and the floor of the car body are equipped with a sealing gasket, which has good sealing performance. The upper surface of the floor body 10 is covered with a floor cloth that is consistent with the floor cloth laid on the floor of the car body, so that the door clearance compensator and The vehicle body floor 130 is integrated and has a high degree of matching.

The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all cover In the scope of the claims of the present invention.

Claims (26)

1. A door lash compensator control system is characterized in that it comprises:

   The air cylinder is used to drive the pedal body to expand and contract horizontally along the bottom surface of the floor body. The air cylinder includes a cylinder body and a piston that expands and contracts along the cylinder body. The cylinder body is provided with an extended air inlet and a retracted air inlet, The extended air inlet and the retracted air inlet are respectively connected with an air pipeline for connecting to an air supply unit;

   An induction switch, which is provided on the cylinder for sensing the position of the piston;

   The controller is used to control the extended intake port or the retracted intake port to intake air according to the position of the piston detected by the inductive switch, so as to control the piston to extend to a specified position Or retract to the designated position.
2. The door lash compensator control system according to claim 1, wherein throttle valves are respectively provided at the extended intake port and the retracted intake port, and the throttle valves are both signally connected to The controller.
3. The door lash compensator control system according to claim 1, wherein the cylinder block is further provided with a locked air inlet, and the locked air inlet is connected to the air supply unit. The air pipeline, and the air supply unit is the air supply system of the vehicle.
4. The door lash compensator control system according to claim 3, wherein the air pipe extending out of the air inlet, the air pipe retracting the air inlet, and the locking air inlet The inlets of the air pipelines are all provided with solenoid valves, and the solenoid valves are signally connected to the controller.
5. The door lash compensator control system according to any one of claims 1 to 4, wherein the induction switch is a magnetic control switch, and the magnetic body of the magnetic control switch is provided in the cylinder body. On the piston, the cylinder body is provided with a pair of moving contacts of the magnetic control switch at intervals, and the distance between the two moving contacts is equal to the preset telescopic stroke of the cylinder, and one of the moving contacts is It is arranged corresponding to the position where the piston is not extended and the magnetic body is provided.
6. A door lash compensator, comprising a floor body, a pedal body, and the door lash compensator control system according to any one of claims 1-5, the floor body is configured to be fixedly embedded in the vehicle body At the installation gap reserved on the floor of the door area, the pedal body is slidably connected to the bottom surface of the floor body, and the air cylinder is configured to drive the pedal body to expand and contract horizontally along the floor body.
7. The door lash compensator according to claim 6, wherein the fixed end of the cylinder is rotatably connected with the bottom surface of the rear end of the floor body through a first pin, and the protruding end of the piston passes through a second The pin shaft is rotatably connected with the bottom surface of the front end of the pedal body, the first pin shaft and the second pin shaft are arranged in parallel, and the axial directions of the first pin shaft and the second pin shaft are perpendicular to the The direction of expansion and contraction of the piston.
8. The door clearance compensator according to claim 7, wherein a sliding rail and a sliding block are provided between the pedal body and the floor body; the sliding rail is fixed to the bottom surface of the floor body The side of the slider facing the slide rail is provided with a slide groove, the side of the slider facing away from the slide groove is fixedly connected to the upper surface of the pedal body, and the slide groove of the slider is clamped in the The sliding rail is outside and slidably connected with the sliding rail.
9. The door clearance compensator according to claim 8, wherein the slide rail is fixedly connected to the bottom surface of the floor body by fastening bolts, and the sliding block is connected to the upper surface of the pedal body by fastening bolts. Fixed connection.
10. A method for controlling a door lash compensator, which is characterized in that it comprises:

    Receiving the extension or retraction signal of the door lash compensator, the controller controls the air pipe extending or retracting the intake port of the cylinder to be the extension or retraction according to the position of the piston of the cylinder. The retracted air inlet provides air, and the air cylinder is controlled to push the pedal body to extend horizontally along the bottom surface of the floor body to an open position or retract to a closed position.
11. A rail vehicle, comprising a driver’s cab, characterized by further comprising the door lash compensator according to any one of claims 6-8, the driver’s cab is provided with a button for controlling the door lash compensator control system, The extended air inlet and the retracted air inlet are respectively connected to the air supply unit of the rail vehicle through an air pipeline.
12. A door clearance compensator, characterized in that it comprises:

    The floor body is configured to be fixed and embedded in the installation gap reserved on the floor of the door area of the car body;

    The pedal body is slidably connected to the bottom surface of the floor body;

    The driving mechanism is configured to drive the pedal body to expand and contract horizontally along the floor body.
13. The door clearance compensator according to claim 12, wherein a sliding rail and a sliding block that are slidably connected are provided between the pedal body and the floor body.
14. The door clearance compensator according to claim 13, wherein the sliding rail is fixed to the bottom surface of the floor body;

    A sliding groove is provided on the side of the sliding block facing the sliding rail, the side of the sliding block facing away from the sliding groove is fixedly connected with the upper surface of the pedal body, and the sliding groove of the sliding block is clamped in the The sliding rail is outside and slidably connected with the sliding rail.
15. The door lash compensator according to claim 14, wherein the sliding connection between the sliding rail and the sliding groove is sealed with a ball, and a lubricant is provided in the sealing channel where the ball is arranged;

    The two sides of the sliding rail along its length direction are configured as internal concave surfaces.
16. The door clearance compensator according to claim 13, wherein the bottom surface of the floor body is configured with a pair of linear guide grooves for installing the slide rail, and the cross-sectional shape of the linear guide groove is upper and lower. A large convex shape, the upper opening groove of the linear guide groove matches the slide rail, and the lower opening groove of the linear guide groove leaves a gap outside the slider;

    A pair of the linear guide grooves are separately provided on both sides of the driving mechanism.
17. The door lash compensator according to claim 14, characterized in that an adjusting pad is provided or not provided between the sliding block and the pedal body.
18. The door clearance compensator according to claim 13, wherein the slide rail is fixedly connected to the bottom surface of the floor body by fastening bolts, and the sliding block is connected to the upper surface of the pedal body by fastening bolts. Fixed connection.
19. The door clearance compensator according to claim 18, wherein the floor body and the pedal body are both extruded and formed of an aluminum alloy hollow profile, and a hollow cavity is formed in the floor body, and the mold The bottom surface of the cavity is spaced with a row of parallelogram holes, the connecting end of the fastening bolt is fixed with a screw seat, the shape of the screw seat is a parallelogram matching the parallelogram hole, and the width of the cavity is equal to The length of the screw seat matches, and the screw seat extends into the cavity along the length of the parallelogram hole, and rotates so that both sides of the length of the screw seat abut against the width of the cavity Inner walls on both sides.
20. The door lash compensator according to claim 19, wherein the upper surface of the pedal body is formed with a pair of installation interfaces symmetrical about the center axis of the pedal body at the position for connecting with the floor body. Anti-slip patterns are formed on the upper surface of the pedal body avoiding the area where the pair of installation interfaces are located; the front end of the upper surface of the floor body is formed with steps for fitting with the lower rib of the door body.
21. The door lash compensator according to any one of claims 11 to 20, wherein the driving mechanism is a cylinder, the cylinder includes a cylinder block and a piston that expands and contracts along the cylinder block, and the cylinder block is fixed The end is rotatably connected to the bottom surface of the rear end of the floor body through a first pin, the protruding end of the piston is rotatably connected to the bottom surface of the front end of the pedal body through a second pin, and the first pin is connected to the bottom surface of the pedal body. The second pin shaft is arranged in parallel, and the axial directions of the first pin shaft and the second pin shaft are perpendicular to the expansion and contraction direction of the piston.
22. The door lash compensator according to claim 21, wherein the cylinder block is provided with an extended intake port, a retracted intake port and a locked intake port, the extended intake port, the The retracted air inlet and the locked air inlet are respectively used for connecting to a vehicle body air supply unit through a gas path.
23. The door lash compensator according to claim 22, wherein at least one of the extended intake port, the retracted intake port, and the locked intake port is provided with a throttle valve.
24. The door lash compensator according to claim 21, wherein the cylinder is provided with a magnetic control switch, the magnetic body of the magnetic control switch is provided on the piston in the cylinder, and the cylinder A pair of moving contacts of the magnetic control switch are arranged on the outer space, the distance between the two moving contacts is equal to the preset telescopic stroke of the cylinder, and one of the moving contacts corresponds to the unextended piston And the position where the magnetic body is provided.
25. A rail vehicle, comprising a car body, characterized in that it further comprises the door clearance compensator according to any one of claims 12 to 24, and the door zone floor of the car body is reserved for installing the door clearance compensator The rear end of the floor body is fixedly installed on the cross beam of the vehicle body and butted with the floor of the vehicle body, and the upper surface of the floor body is flush with the upper surface of the floor of the vehicle body.
26. The rail vehicle according to claim 25, wherein the installation gap is opened from the door area floor to the side beam of the car body, and the front end of the floor body is flush with the outer side of the side beam Also, the rear end of the floor body and the floor of the vehicle body are provided with a sealing gasket, and the upper surface of the floor body is laid with a floor cloth consistent with the floor cloth laid on the upper surface of the floor of the vehicle body.

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