CN109677427B

CN109677427B - Buffer carriage

Info

Publication number: CN109677427B
Application number: CN201910081903.XA
Authority: CN
Inventors: 李聪
Original assignee: Wenzhou Lungbor Technology Co ltd
Current assignee: WENZHOU LUNGBOR TECHNOLOGY Co.,Ltd.
Priority date: 2016-08-26
Filing date: 2016-08-26
Publication date: 2020-07-03
Anticipated expiration: 2036-08-26
Also published as: CN106240585A; CN109677427A; CN106240585B

Abstract

The invention relates to a buffer carriage, which comprises a passenger carriage and a traction carriage; the traction compartment is sleeved outside the passenger compartment; the upper surface of a top plate and the lower surface of a bottom plate of the passenger compartment are damping surfaces, damping grooves are formed in the two damping surfaces at equal intervals, damping strips are arranged on the surfaces, opposite to the damping surfaces, of the traction compartment, a liquid storage cavity is formed in each of the front side wall and the rear side wall in the traction compartment, and a piston plate is mounted on the inner peripheral wall of the liquid storage cavity in a sliding mode; the piston sheet is connected with a bottom plate of the liquid storage cavity through a pressure spring; a liquid seal space enclosed by the liquid storage cavity and the piston sheet is filled with cooling liquid; the piston sheet is fixedly connected with the passenger compartment; the liquid guide pipe is arranged inside the damping strip; this buffering carriage simple structure, low cost can effectively weaken passenger's inertia and rock the range, reduces the extrusion, steps on the probability that the incident takes place.

Description

Buffer carriage

The application is a divisional application with application number 2016107310366, application date 2016, month 08, and day 26, and the title "buffer carriage".

Technical Field

The invention relates to a subway assembly, in particular to a carriage.

Background

With the rapid development of rail transit, the construction of urban subways is in progress vigorously; the subway transport line has high efficiency and accurate time, is less influenced by environmental factors such as weather and the like, and therefore, the subway transport line also becomes a common vehicle for citizens to go out; when a subway arrives at a station, the doors of the subway train and the doors of the subway platform are opened in sequence, and citizens can get on or off the train from the platform;

when the subway train is started or braked, passengers are frequently shaken down by the train and unstably stand due to inertia, so that unnecessary damage is caused; particularly, when the number of passengers is large, the passengers in the train are easy to fall collectively at the moment of the stop of the train, and the events of extrusion and treading are easy to occur.

Disclosure of Invention

Aiming at the problems, the invention provides the buffer carriage which is simple in structure and low in cost, can effectively weaken the inertia shaking amplitude of passengers, and reduces the probability of extrusion and treading events.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the buffer carriage comprises a passenger carriage and a traction carriage;

the train engine is arranged on the traction carriage; the traction compartment is sleeved outside the passenger compartment; the upper surface of a top plate and the lower surface of a bottom plate of the passenger compartment are damping surfaces, damping grooves are formed in the two damping surfaces at equal intervals, damping strips are arranged on the surfaces of the traction compartment, which are opposite to the damping surfaces, the length, the width and the position of each damping strip are matched with the corresponding damping groove, and the thickness of each damping strip is larger than the depth of each damping groove; the damping strips are in close contact with the damping grooves; the surface of the damping groove, which is in contact with the damping strip, is plated with a heat conduction layer and a wear-resistant layer;

the front side wall and the rear side wall in the traction compartment are respectively provided with a liquid storage cavity, the inner peripheral wall of the liquid storage cavity is provided with a piston sheet in a sliding manner, the piston sheet is parallel to the front side wall and the rear side wall of the traction compartment, and the piston sheet is connected with a bottom plate of the liquid storage cavity through a pressure spring; a liquid seal space enclosed by the liquid storage cavity and the piston sheet is filled with cooling liquid; the piston sheet is fixedly connected with the passenger compartment;

liquid guide ports are formed in the bottom plates of the two liquid storage cavities and are communicated in a sealing mode through liquid guide pipes; the catheter is arranged inside the damping strip.

The invention has the beneficial effects that: when the vehicle runs at a constant speed or is static, the passenger compartment and the traction compartment keep relatively static, and the stress of each pressure spring is balanced; when the vehicle is braked or started, the traction compartment firstly changes the motion state, and due to inertia, the passenger compartment and the traction compartment move relatively, and each pressure spring deforms correspondingly; the relative friction force of the damping strips and the damping grooves can effectively reduce the instantaneous acceleration of the passenger compartment, so that the inertia force of the passenger compartment is reduced, the inertia of the passenger is effectively relieved, and the shaking, extruding and treading of the passenger are effectively controlled; after the carriage is stable, the passenger carriage is restored to the original position of the traction carriage under the action of the pressure spring, and the traction carriage and the passenger carriage synchronously move forward.

According to the invention, a part of instant inertia force is counteracted through the friction force of the damping strips, so that the acceleration and deceleration of the passenger compartment are more moderate, and the riding experience is effectively improved; further reducing the probability of occurrence of passenger crowding, shaking and treading events.

Preferably, magnetic wear-resistant particles are arranged in gaps between the damping strips and the damping grooves; so as to make the passenger compartment and the traction compartment closely contact, reduce the up-and-down bump of the passenger compartment, increase the contact area between the passenger compartment and the traction compartment and prolong the service life of the invention.

Preferably, more than two liquid guide pipes are communicated with the liquid guide port; a one-way valve is arranged in each liquid guide pipe; the liquid guide pipe is positioned at the upper part of the passenger compartment, and the conduction direction of the one-way valve in the liquid guide pipe is opposite to that of the one-way valve in the liquid guide pipe positioned at the lower part of the passenger compartment; so as to fix the flow direction of the cooling liquid and promote all the cooling liquid in the liquid storage cavity to participate in heat conduction and heat dissipation.

Drawings

Fig. 1 is a schematic cross-sectional view of the buffer car along the direction of travel of the train in one embodiment of the present buffer car.

Fig. 2 is a schematic cross-sectional structure view perpendicular to the train traveling direction in the embodiment shown in fig. 1.

Detailed Description

Examples

In the embodiment shown in fig. 1 and 2, the present buffer carriage comprises a passenger carriage 2 and a traction carriage 1; the train engine is arranged on the traction carriage 1; the traction compartment 1 is sleeved outside the passenger compartment 2; the upper surface of a top plate and the lower surface of a bottom plate of the passenger compartment 2 are damping surfaces, damping grooves 3 are formed in the two damping surfaces at equal intervals, damping strips 4 are arranged on the surfaces, opposite to the damping surfaces, of the traction compartment 1, the length, the width and the position of each damping strip 4 are matched with the corresponding damping groove 3, and the thickness of each damping strip 4 is larger than the depth of each damping groove 3; the damping strips 4 are closely contacted with the damping grooves 3; magnetic wear-resistant particles 41 are arranged in gaps between the damping strips 4 and the damping grooves 3; the surface of the damping groove 3, which is contacted with the damping strip 4, is plated with a heat conduction layer and a wear-resistant layer;

a liquid storage cavity 5 is respectively arranged on the front side wall and the rear side wall in the traction compartment 1, a piston sheet 51 is slidably mounted on the inner peripheral wall of the liquid storage cavity 5, the piston sheet 51 is parallel to the front side wall and the rear side wall of the traction compartment 1, and the piston sheet 51 is connected with the bottom plate of the liquid storage cavity 5 through a pressure spring 6; a liquid seal space surrounded by the liquid storage cavity 5 and the piston sheet 51 is filled with cooling liquid; the piston plate 51 is fixedly connected with the passenger compartment 2; liquid guide ports 7 are formed in the bottom plates of the two liquid storage cavities 5, and the two liquid guide ports 7 are hermetically communicated through liquid guide pipes 8; the liquid guide tube 8 is arranged inside the damping strip 4. More than two liquid guide pipes are communicated with the liquid guide port; a one-way valve 81 is arranged in each liquid guide pipe; the liquid guide pipe located in the upper part of the passenger compartment has a one-way valve 81 inside thereof communicated in the opposite direction to the one-way valve 81 in the liquid guide pipe located in the lower part of the passenger compartment.

When the vehicle runs at a constant speed or is static, the passenger compartment 2 and the traction compartment 1 keep relatively static, and the stress of each pressure spring 6 is balanced; when the vehicle is braked or started, the traction compartment 1 firstly changes the motion state, and due to inertia, the passenger compartment 2 and the traction compartment 1 move relatively, and each compression spring 6 deforms correspondingly; the relative friction force of the damping strips 4 and the damping grooves 3 can effectively reduce the instantaneous acceleration of the passenger compartment 2, so that the inertia force of the passenger compartment 2 is reduced, the inertia of the passenger is effectively relieved, and the shaking, extruding and treading of the passenger are effectively controlled; after the carriage is stable, the passenger carriage 2 is restored to the original position of the traction carriage 1 under the action of the compression spring 6, and the traction carriage 1 and the passenger carriage 2 move forwards synchronously.

According to the invention, a part of instant inertia force is counteracted through the friction force of the damping strips 4, so that the acceleration and deceleration of the passenger compartment 2 are more moderate, and the riding experience is effectively improved; further reducing the probability of occurrence of passenger crowding, shaking and treading events.

During the relative movement of the passenger compartment and the traction compartment, the piston plate moves synchronously with the passenger compartment so as to extrude and suck the cooling liquid in the two liquid storage cavities and further promote the cooling liquid to flow in the damping strips; the heat generated by the friction of the damping strips is taken away in the flowing process of the cooling liquid, so that the long-term stable use of the damping strips is ensured.

In the embodiment, more than two liquid guide pipes are communicated with the liquid guide port; a one-way valve 81 is arranged in each liquid guide pipe; a liquid guide pipe positioned at the upper part of the passenger compartment, wherein the one-way valve 81 at the inner part of the liquid guide pipe is opposite to the conduction direction of the one-way valve 81 at the liquid guide pipe positioned at the lower part of the passenger compartment; so as to fix the flow direction of the cooling liquid and promote all the cooling liquid in the liquid storage cavity to participate in heat conduction and heat dissipation.

In the present embodiment, the abrasion resistant particles 41 can make the passenger compartment 2 and the traction compartment 1 closely contact with each other, reduce the up-and-down bump of the passenger compartment 2, and increase the contact area between the passenger compartment 2 and the traction compartment 1, thereby prolonging the service life of the present invention; the magnetic wear-resistant particles 41 can be adsorbed on the ferromagnetic damping strips 4 and cannot fall off.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A buffer carriage comprises a passenger carriage (2) and a traction carriage (1); the train engine is arranged on the traction compartment (1); the method is characterized in that: the traction compartment (1) is sleeved outside the passenger compartment (2); the upper surface of a top plate and the lower surface of a bottom plate of the passenger compartment (2) are damping surfaces, damping grooves (3) are formed in the two damping surfaces at equal intervals, damping strips (4) are arranged on the surfaces, opposite to the damping surfaces, of the traction compartment (1), the length, the width and the position of each damping strip (4) are matched with the corresponding damping groove (3), and the thickness of each damping strip (4) is larger than the depth of each damping groove (3); the damping strip (4) is tightly contacted with the damping groove (3); the surface of the damping groove (3) which is contacted with the damping strip (4) is plated with a heat conduction layer and a wear-resistant layer; the front side wall and the rear side wall in the traction compartment (1) are respectively provided with a liquid storage cavity (5), the inner peripheral wall of the liquid storage cavity (5) is provided with a piston sheet (51) in a sliding way, the piston sheet (51) is parallel to the front side wall and the rear side wall of the traction compartment (1), and the piston sheet (51) is connected with the bottom plate of the liquid storage cavity (5) through a pressure spring (6); a liquid seal space enclosed by the liquid storage cavity (5) and the piston sheet (51) is filled with cooling liquid; the piston plate (51) is fixedly connected with the passenger compartment (2); liquid guide ports (7) are formed in the bottom plates of the two liquid storage cavities (5), and the two liquid guide ports (7) are hermetically communicated through liquid guide pipes (8); the liquid guide pipe (8) is arranged inside the damping strip (4); magnetic wear-resistant particles (41) are arranged in gaps between the damping strips (4) and the damping grooves (3); more than two liquid guide pipes (8) are communicated with the liquid guide port (7); a one-way valve (81) is arranged in each liquid guide pipe (8); the liquid guide pipe (8) is positioned at the upper part of the passenger compartment (2), and the conduction direction of the check valve (81) in the liquid guide pipe (8) is opposite to that of the check valve (81) in the liquid guide pipe (8) positioned at the lower part of the passenger compartment (2); the damping strips (4) are made of ferromagnetic materials;

when the vehicle runs at a constant speed or is static, the passenger compartment (2) and the traction compartment (1) keep relatively static, and the stress of each pressure spring (6) is balanced; when the vehicle is braked or started, the traction compartment (1) firstly changes the motion state, and each pressure spring (6) is correspondingly deformed due to the relative motion of the inertia passenger compartment (2) and the traction compartment (1); the relative friction force of the damping strips (4) and the damping grooves (3) reduces the instantaneous acceleration of the passenger compartment (2), and further reduces the inertia force of the passenger compartment (2); after the carriage is stable, the passenger carriage (2) is restored to the original position of the traction carriage (1) under the action of the pressure spring (6), and the traction carriage (1) and the passenger carriage (2) move forwards synchronously; during the relative movement of the passenger compartment and the traction compartment, the piston plate moves synchronously with the passenger compartment so as to extrude and suck the cooling liquid in the two liquid storage cavities and further promote the cooling liquid to flow in the damping strips; the abrasion resistant particles (41) bring the passenger compartment (2) and the traction compartment (1) into close contact, reduce the up-and-down pitching of the passenger compartment (2), and increase the contact area between the passenger compartment (2) and the traction compartment (1).