WO2018086187A1

WO2018086187A1 - Rail vehicle and sand spraying system thereof

Info

Publication number: WO2018086187A1
Application number: PCT/CN2016/109706
Authority: WO
Inventors: 毛金虎; 方长征; 黄金虎; 舒畅; 吴朝东; 冷波; 曾萍
Original assignee: 中车株洲电力机车有限公司
Priority date: 2016-11-11
Filing date: 2016-12-13
Publication date: 2018-05-17
Also published as: CN106379332A

Abstract

A rail vehicle and a sand spraying system thereof. The sand spraying system comprises sand sprayers (7) provided at axle positions in a vehicle bogie. A sand spraying control module (5) is connected to each sand sprayer (7). Each control module (5) controls only one sand sprayer (7) to work. The sand spraying control module (5) comprises a control valve assembly. The sand sprayer (7) is in communication with a gas source by means of the control valve assembly. The sand spraying control module (5) is independently provided for each sand sprayer (7) provided at the axle position. Each sand sprayer (7) is independently controlled by the control valve assembly in the sand spraying control module (5). Different control modules (5) are also used for sand sprayers (7) that shall perform the same work action on different axles, so that the work of each sand sprayer (7) is effectively ensured, i.e., the independence of a pipeline is controlled, and the mutual influence between different sand sprayers (7) caused by the communication of a pipeline structure is prevented. In addition, the independence of the pipeline structure ensures that the sand unloading amount of the sand sprayer (7) on a certain axle can be particularly adjusted without affecting the other surrounding sand sprayers (7).

Description

Rail vehicle and sanding system thereof

This application claims priority to Chinese Patent Application No. 201610997579.2, entitled "A Rail Vehicle and Its Sanding System", filed on November 11, 2016, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of rail transit technology, and more particularly to a rail vehicle sanding system, and to a rail vehicle.

Background technique

Rail vehicles are generally equipped with a sanding system. By controlling the compressed air, the sand inside the sand box can be blown out through the sander, falling between the wheel rails, improving the adhesion coefficient between the wheel rails, effectively suppressing, Reduce wheel idling or taxiing, improve traction and braking performance of rail vehicles, and ensure transportation capacity and driving safety.

The existing sanding control mode is based on vehicle control, that is, only one set of sanding control modules, including control valves and air lines, is provided on an entire locomotive or an entire train; the inventors found that the existing There are certain shortcomings in the sand control mode, mainly in:

When the locomotive or the vehicle is required to be sanded, the control valve and the air line control the flow of compressed air to the bogie under the vehicle, and the sand is directionally blown out at the required position; however, due to the uniformity of the pipeline and control, and due to The different lengths of the pipelines in different sanding positions are different, and the resistance caused by the pipeline direction is different, which leads to the position where the bogie needs to perform the same sanding work, and there is a difference in the amount of sand sand under the sander; if one of them is adjusted The amount of sanding in the sanding pipe at the location (eg by adjusting the size of the shrinkage on the pipe), as the internal pipe resistance changes, which in turn affects the amount of sanding at another location connected to it. That is to say, the amount of sanding in different positions affects each other, and it is time-consuming and labor-intensive to adjust the amount of sanding.

In summary, how to effectively solve the problem of inaccurate sanding control of the sander working system equipped with the existing rail vehicle, and difficult to adjust the amount of sanding at a certain position, is urgently needed to be solved by those skilled in the art. problem.

Summary of the invention

In view of this, the first object of the present invention is to provide a rail vehicle sanding system, and the structural design of the rail vehicle sanding system can effectively solve the inaccurate sanding control of the sander working system of the existing rail vehicle. It is difficult to specifically adjust the amount of sanding at a certain position, and the second object of the present invention is to provide a rail vehicle including the above-described rail vehicle sanding system.

In order to achieve the above first object, the present invention provides the following technical solutions:

A rail vehicle sanding system includes a sander disposed at a position near an axle in a bogie of a vehicle, each set of the sanders being connected with a set of sanding control modules, each set of the control module controlling only one set The sander operates; the sanding control module includes a control valve assembly that turns on a source of air through the control valve assembly.

Preferably, in the above-mentioned rail vehicle sanding system, the air source connected to each group of the control valve components is a non-attenuating total wind source.

Preferably, in the above-mentioned rail vehicle sanding system, a corresponding sander is disposed at a position near each of the axles in the vehicle bogie.

Preferably, in the above-mentioned rail vehicle sanding system, the main control module is further included, and each group of the sanding control modules is communicably connected to the main control module through a separate thread.

Preferably, in the above-mentioned rail vehicle sanding system, the main control module is communicably connected with the shaft end speed sensor on each of the axles, and controls the operation of each group of the sandblasting control modules in combination with the current vehicle speed returned.

Preferably, in the above-mentioned rail vehicle sanding system, the main control module is connected with the traction master control and the brake master control communication of the vehicle, and controls the operation of each group of the sand control module in combination with the received current vehicle operation information.

Preferably, in the above-mentioned rail vehicle sanding system, each set of the sanders includes a first sander and a second sander for respectively aligning the lower rails on both sides of the wheel at both ends of the shaft, respectively. The first sander is connected in parallel with the second sander.

Preferably, in the above-mentioned rail vehicle sanding system, the control valve assembly includes an electromagnetic cutoff valve and a pressure reducing valve.

The rail vehicle sanding system provided by the invention comprises a sander disposed at a position near the axle in the bogie of the vehicle, and each set of the sanders is connected with a set of sanding control modules, and each group of the control modules is only controlled A set of the sanders operates; the sanding control module includes a control valve assembly that turns on a source of air through the control valve assembly. The sanding system provided by the invention independently sets a sanding control module for each group of sanders disposed near the axle, and independently controls the operation of each group of sanders through the control valve components therein, different axes The sanders with the same working action also adopt different control modules, which effectively ensure the independence of each group of sanders, that is, the control pipelines, and prevent the mutual collision between different groups of sanders due to the communication of the pipelines. The influence and independence of the control ensure that the sand under different positions in the bogie that needs to perform the same sanding action is no longer restrained by each other, resulting in inconsistency of the sand. At the same time, the independent structure of the pipeline ensures that the sander on a certain shaft can be used. The amount of sand is adjusted in a targeted manner without affecting other sanders around it. In summary, the rail vehicle sanding system provided by the present invention effectively solves the inaccurate sanding control of the sander working system equipped with the existing rail vehicle, and it is difficult to specifically adjust the amount of sanding at a certain position. problem.

In order to achieve the above second object, the present invention also provides a rail vehicle comprising any of the above-described rail vehicle sanding systems. Since the rail vehicle sanding system described above has the above technical effects, the rail vehicle having the rail vehicle sanding system should also have a corresponding technical effect.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic diagram of a rail vehicle sanding system according to an embodiment of the present invention.

The figures are marked as follows:

Total wind source 1, main control module 2, traction main control 3, brake main control 4, sanding control module 5, The shaft end speed sensor 6, the first sander 7-1, the second sander 7-2, and the sander 7.

detailed description

The embodiment of the invention discloses a rail vehicle sanding system, which solves the problem that the sanding control system of the sander working system equipped with the existing rail vehicle is inaccurate, and it is difficult to specifically adjust the amount of sanding at a certain position.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a rail vehicle sanding system according to an embodiment of the present invention.

The rail vehicle sanding system provided by the embodiment of the invention comprises a sander 7 disposed at an axle position in a bogie of the vehicle, and each set of the sanders 7 is connected with a plurality of sanding control modules 5, each group of said control The modules each control only a group of said sanders 7; said sanding control module 5 comprises a control valve assembly, said sander 7 being energized by said control valve assembly.

It should be noted that the vehicle bogie in the technical solution of the present invention is disposed in the lower part of the vehicle compartment, and each bogie is mounted with two or other numbers of axles, and each pair of axles is mounted with a pair of wheel pairs; preferably, it is sprinkled. The sander is disposed at each set of wheel pairs for spreading sand between the wheel and the track to enhance friction, and the sanders disposed on the same axle are in a group, which work synchronously; the sander in the technical solution is Pneumatic, this group of sanders are directly connected to the gas source through the control valve assembly, without the structure of the split pipe in the middle, so as to avoid the influence of different groups of sanders due to the pressure.

The sanding system provided in this embodiment independently sets a sanding control module for each group of sanders disposed near the axle, and independently controls the operation of each group of sanders through the control valve assembly therein. The sanders with the same shaft working action also adopt different control modules, which effectively ensure the independence of each group of sanders, that is, the control pipelines, and prevent the different groups of sanders from being connected due to the connection of the pipeline structure. Mutual influence, the independence of control ensures that the same sand is required The sand in different positions in the moving bogie no longer restrains each other, resulting in inconsistent sand. At the same time, the independent structure of the pipeline ensures that the amount of sand in the sander on a certain shaft can be adjusted in a targeted manner, instead of the surrounding Other sanders have an effect. In summary, the rail vehicle sanding system provided by the present invention effectively solves the inaccurate sanding control of the sander working system equipped with the existing rail vehicle, and it is difficult to specifically adjust the amount of sanding at a certain position. problem.

In order to further optimize the above technical solution, preferably, in the above-mentioned rail vehicle sanding system, the air source connected to each of the control valve assemblies is a non-attenuating total wind source 1 .

The inventors have found that due to the uniform arrangement of the gas path of the sand scatterer in the prior art, the gas path interfaces of the respective sanding positions are connected one by one, which results in a long gas path when the sanding point is located at a large position. The pressure of the sanding point at the end is attenuated more severely, resulting in insufficient sanding.

In view of this situation, in the technical solution provided by the embodiment, the gas source connected to the control valve assembly of each group of sanders is controlled to be a non-attenuating gas source, and the pipeline is directly connected with the total wind source, which is effective. The problem that the amount of sand discharged by the sand sprinkler is insufficient due to the large number of sand sprinklers in series is solved.

In order to further optimize the above technical solution, it is preferable that, in the above-mentioned rail vehicle sanding system, a corresponding sander 7 is disposed at a position near each of the axles in the vehicle bogie.

In the technical solution provided by the embodiment, a sand sprinkler is disposed at a position near each axle in the bogie of the vehicle, so that the sanding of the vehicle is more uniform, and the friction is provided more evenly and reasonably. A pair of wheel sets are installed on each set of axles. Sanders are placed in each set of wheel sets to spread sand between the wheels and the track to increase friction. The sanders on the same axle are grouped and synchronized. jobs.

In order to further optimize the above technical solution, based on the above embodiments, the rail vehicle sanding system further includes a main control module 2, and each group of the sand control module 5 passes through an independent thread and a main control module. 2 communication connection.

In the technical solution provided by the embodiment, the main control module is also set, and each group of sanding control modules are communicated with the main control module through independent threads, such that the design can be directly controlled by the main control module. The work of each group of sanders in different locations makes the sanding work more controllable.

In order to further optimize the above technical solution, it is preferable that, in the above-mentioned rail vehicle sanding system, the main control module 2 is communicably connected with the shaft end speed sensor 6 on each of the axles, and is combined and returned. The current vehicle speed controls each group of the sanding control module 5 to operate.

In the technical solution provided by the embodiment, a shaft end speed sensor is arranged on each axle, and is connected with the main control module to detect the rotation speed of each axle in real time, so that the main control module can obtain real-time vehicle speed information, and the main control module Combine the speed information to control the work of the sander, so that there is a good fit between the sanding work and the running condition of the vehicle, so that the sanding control is started from reality.

In order to further optimize the above technical solution, preferably, in the above-mentioned rail vehicle sanding system, the main control module 2 is communicably connected with the traction master 3 of the vehicle and the brake master 4 in combination with the above embodiments. The current vehicle operating information controls each group of the sanding control module 5 to operate.

In the technical solution provided by the embodiment, the main control module is further connected with the vehicle traction master control and the brake master control, thereby obtaining information about the current power and resistance situation of the vehicle; the preferred master control module is also related to the traction master. The interactive feedback of information between the control and the brake master can be used as the control parameters of the traction master and the brake master through the reaction of sanding. Taking the actual operation of the train as an example, when the vehicle advances in a certain direction: the sander corresponding to the axle on the bogie in this direction is activated, and the sander corresponding to the axle on the bogie facing away from the direction is at Standby sleep state; if the vehicle is in the state of active traction to provide forward power at this time, and the axle end speed sensor detects that the axle is in an abnormal speed such as idling or slipping state, the main control module can control the corresponding sanding for this situation. The device performs a supplementary sanding of the idle wheel position to increase the friction.

Of course, this design also enables the main control module to control the amount of sanding according to the specific situation of the slip of the axle at different positions. For example, when it is detected that the two axles providing rotation are in a slip state, a certain axle is relatively When the speed is faster and the slippage is more severe, the sander that controls the axle provides a greater amount of sanding. This intelligent, targeted control reduces sand waste. When the vehicle is braked, the control principle is the same as described above.

Further, the above technical solution is further optimized. On the basis of the above embodiments, in the rail vehicle sanding system, each set of the sanders 7 is respectively disposed on two sides of the wheel pair for The first sander 7-1 and the second sander 7-2 of the track below, the first sander 7-1 and the second sander 7-2 are connected in parallel.

In order to further optimize the above technical solution, in the above rail vehicle sanding system, the control valve assembly includes an electromagnetic cutoff valve and a pressure reducing valve.

Based on the rail vehicle sanding system provided in the above embodiment, the present invention also provides a rail vehicle comprising any of the rail vehicle sanding systems of the above embodiments. Since the rail vehicle adopts the rail vehicle sanding system in the above embodiment, the advantageous effects of the rail vehicle can be referred to the above embodiment.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims

A rail vehicle sanding system includes a sander disposed at an axle position in a bogie of a vehicle, wherein each set of the sanders is connected with a plurality of sanding control modules, and each group of the control modules is only Controlling a set of said sanders operating; said sanding control module includes a control valve assembly, said sanders being vented by said control valve assembly.
The rail vehicle sanding system of claim 1 wherein each of said sets of said control valve assemblies is powered by a source of non-attenuating total wind.
A rail vehicle sanding system according to claim 2, wherein each of said axle positions in said vehicle bogie is provided with a corresponding sander.
The rail vehicle sanding system according to claim 3, further comprising a main control module, wherein each of the sandblasting control modules is communicably connected to the main control module through a separate thread.
The rail vehicle sanding system according to claim 4, wherein said main control module is in communication connection with a shaft end speed sensor on each of said axles, and controls each group of said sprinkles in combination with the current vehicle speed returned. The sand control module works.
The rail vehicle sanding system according to claim 5, wherein the main control module is in communication with a traction master and a brake master of the vehicle, and controls each group according to the received current vehicle operation information. The sanding control module works.
A rail vehicle sanding system according to any one of claims 1 to 6, wherein each of said sets of sanders includes first sides disposed on opposite ends of the shaft, respectively, for aligning the lower rails. a sander and a second sander, the first sander and the second sander being connected in parallel.
The rail vehicle sanding system of claim 7 wherein said control valve assembly comprises an electromagnetic shutoff valve and a pressure relief valve.
A rail vehicle characterized by comprising a rail vehicle sanding system according to any of claims 1-8.