CN109017840B

CN109017840B - Railway loading point weighing car system

Info

Publication number: CN109017840B
Application number: CN201811102419.2A
Authority: CN
Inventors: 李正倩; 陈兴来; 田吉远; 徐恺; 刘振; 王岩
Original assignee: Liaoning Dinghan Qihui Electronic System Engineering Co ltd
Current assignee: Liaoning Dinghan Qihui Electronic System Engineering Co ltd
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2023-08-15
Anticipated expiration: 2038-09-20
Also published as: CN109017840A

Abstract

The application discloses a railway loading point weighing vehicle system, which is characterized in that a railway loading point weighing vehicle device runs on a rail to weigh a train because the rail is provided with a train, and wheels of the device collide with wheels of the train. The device is provided with the anti-collision wheels, when the anti-collision wheels are contacted with the train wheels, the internal springs of the compression and shrinkage type driving wheels are compressed and shrunk under the action of the pressure of the train wheels, and the whole compression type driving wheels are driven to shrink inwards. After passing through the train wheels, the retractable driving wheels immediately extend to the original positions under the action of spring pressure, and the device continues to run for weighing.

Description

Railway loading point weighing car system

Technical Field

The application belongs to the technical field of train weighing, and particularly relates to a railway loading point weighing car system.

Background

The railway freight has the advantages of low cost, low pollution, large freight volume, no influence of climate and the like, and is always in an important position in the economic development of China. Along with the development of railway transportation to high speed and heavy load, higher requirements on transportation safety are put forward. One of the main factors affecting the safety of railway freight transportation is the loading state of the truck, i.e. whether the truck has overload, unbalanced load, unbalanced weight and other phenomena. Whether overloaded, off-loaded or heavy, is a significant safety hazard for safe operation of the vehicle. In order to avoid potential safety hazards, railway supervision departments install freight transportation metering safety detection equipment such as a rail scale, an overload and unbalanced load instrument or a wheel weight instrument and the like in important stations, goods yards and marshalling stations for inputting a large amount of funds, and the railway supervision departments play a certain role in controlling the overload and unbalanced load phenomenon. However, the rail scale and the overload and unbalanced load instrument are high in price and high in installation requirement, the track scale and the overload and unbalanced load instrument can only perform detection when the shunting operation is performed after the loading is finished, and once the overload and unbalanced load condition is found, the truck is buckled and pulled back to the loading station to reload, so that time and labor are wasted.

Disclosure of Invention

According to the problems existing in the prior art, the application discloses a railway loading point weighing car system, which is arranged in the stock way of the existing railway goods yard to automatically measure the weight of a train, and comprises the following steps: the automatic lifting and weighing lifting device comprises a lifting frame for lifting the train wheels and weighing automatically, wherein the lifting frame is fixedly connected to a carrying platform, two ends of the carrying platform are fixedly connected with running mechanisms moving on a track, and a plurality of shrinkage driving wheels meeting the automatic shrinkage of the wheel structure are fixedly connected to the running mechanisms.

The retractable driving wheel comprises a bearing seat, a spline shaft and a spring are arranged through the bearing seat, one end of the spline shaft is connected with the wheel, and the other end of the spline shaft is connected to the conveying rod; one end of the spring is connected with the bearing seat, the other end of the spring is connected on the conveying rod, the conveying rod is connected with the power bearing, two bearings are arranged in the bearing seat side by side, the retractable driving wheel further comprises an anti-collision wheel, a bearing is fixedly connected to the anti-collision wheel, the bearing is connected with one end of the anti-collision shaft, and the other end of the anti-collision shaft is connected with the bearing seat.

The lifting frame comprises a lifting frame shell which is fixedly connected to a transverse guide rail, a hydraulic cylinder and a pressure sensor are arranged in the lifting frame shell, the transverse guide rail is fixedly connected to a lifting frame bottom plate, the lifting frame bottom plate is connected to a longitudinal guide rail, and the longitudinal guide rail is fixedly connected to a carrying platform bottom plate; the hoisting frame further comprises a transverse motor and a longitudinal motor, one end of the transverse motor is connected with a transverse ball screw, one end of the longitudinal motor is connected with a longitudinal ball screw, the transverse motor controls the hoisting frame to perform translational motion along a transverse guide rail through the transverse ball screw, the longitudinal motor is fixedly connected to a carrying platform bottom plate, and the longitudinal motor controls the hoisting frame bottom plate to perform translational motion along the longitudinal guide rail through the longitudinal ball screw.

By adopting the technical scheme, the railway loading point weighing vehicle system provided by the application is arranged in the stock way line of the existing railway freight yard, and can realize the operations of automatically identifying the position of a wheel set, automatically measuring the weight of a train, automatically returning to a waiting station for charging and the like. In the measuring process, the rail car moves by itself, the movement is stopped after the position of the wheel set is detected, the intelligent wheel set measuring equipment is unfolded for measurement, the four wheel sets on two sides are lifted simultaneously through a hydraulic device on the intelligent wheel set measuring equipment, data recorded by the pressure sensors are read, the weight of the wheel sets on two sides is calculated, and meanwhile, the train number of the measured train is identified by the train number identifying device. After the two groups of data of a vehicle are all measured, the overload, unbalanced load and unbalanced weight conditions of the train are calculated according to the data result of each group, and the train number is bound and then uploaded to a rear-end server. After the weighing task is completed, the vehicle automatically returns to the waiting station for charging, and the wheels are retracted. The product also has the function of automatic overload and unbalanced load alarm.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic diagram of a railway loading point weighing car system of the present application;

FIG. 2 is a schematic view of a retractable driving wheel according to the present application;

FIG. 3 is a cross-sectional view of a retractable drive wheel structure according to the present application;

FIG. 4 is a schematic diagram of the internal structure of the railway loading point weighing car system of the present application;

FIG. 5 is a schematic view of the internal structure of the weighing part in the application;

FIG. 6 is a schematic view of the internal structure of the weighing part in the application;

FIG. 7 is a schematic view of the working state of the present application;

FIG. 8 is an enlarged view of the contact of the weigh frame with the wheels of the train in the operational state of the present application;

FIG. 9 is a schematic view of a railway loading point weighing car system of the present application in track operation;

FIG. 10 is a schematic view of the railway loading point weighing car system of the present application in track operation.

Detailed Description

In order to make the technical scheme and advantages of the present application more clear, the technical scheme in the embodiment of the present application is clearly and completely described below with reference to the accompanying drawings in the embodiment of the present application:

in a railway loading point weighing car system shown in fig. 1, because a train exists on a track, wheels of a railway loading point weighing car device collide with wheels of the train when the railway loading point weighing car device walks on the track to weigh the train. The device is provided with the anti-collision wheels, when the anti-collision wheels are contacted with the train wheels, the internal springs of the compression and shrinkage type driving wheels are compressed and shrunk under the action of the pressure of the train wheels, and the whole compression type driving wheels are driven to shrink inwards. After passing through the train wheels, the retractable driving wheels immediately extend to the original positions under the action of spring pressure, and the device continues to run for weighing. The specific scheme includes that the lifting frame 200 for automatically lifting and weighing wheels of a train is lifted, and the lifting frame 200 is fixedly connected to the carrying platform 300; the two ends of the carrying platform 300 are fixedly connected with the running mechanism 100; the running gear 100 comprises a plurality of retractable drive wheels 11 which run on the rail to encounter the wheels for retraction avoidance.

Further, as shown in fig. 2 to 5, the retractable driving wheel 11 specifically includes a bearing housing 50, through which a spline shaft 63 and a spring 64 are provided through the bearing housing 50. One end of the spline shaft 63 is connected with the wheel 52, and the other end of the spline shaft 63 is connected with the transmission rod 54; one end of the spring 64 is connected to the bearing housing 50 and the other end is connected to the transfer lever 54. The transmission rod 54 is connected with the power bearing 53, two bearings 62 are arranged in parallel in the bearing seat 50, the retractable driving wheel 11 further comprises an anti-collision wheel 51, a bearing 61 is fixedly connected to the anti-collision wheel 51, the bearing 61 is connected with one end of the anti-collision shaft 60, and the other end of the anti-collision shaft 60 is connected with the bearing seat 50. The working state is as follows: when the wheels 51 come into contact with each other, the springs 64 inside the retractable driving wheels 11 are compressed and retracted by the pressure of the wheels, thereby driving the entire retractable driving wheels to retract inward.

As shown in fig. 6-9: the lifting frame 200 comprises a lifting frame shell 78, the lifting frame shell 78 is fixedly connected to the transverse guide rail 70, a hydraulic cylinder 79 and a pressure sensor 80 are arranged in the lifting frame shell 78, and the transverse guide rail 70 is fixedly connected to the lifting frame bottom plate 75. The frame base plate 75 is connected to the longitudinal rail 72, and the longitudinal rail 72 is fixedly connected to the mounting platform base plate 74. The hoisting frame 200 further comprises a transverse motor 76 and a longitudinal motor 73. One end of the transverse motor 76 is connected with a transverse ball screw 77, and one end of the longitudinal motor 73 is connected with a longitudinal ball screw 71. The transverse motor 76 controls the hoisting frame 200 to perform translational movement along the transverse guide rail 70 through a transverse ball screw 77. The longitudinal motor 73 is fixedly connected to the carrying platform bottom plate 74, and the longitudinal motor 73 controls the hoisting frame bottom plate 75 to perform translational motion along the longitudinal guide rail 72 through the longitudinal ball screw 71.

Further, in the present application, 4 retractable driving wheels 11 may be installed on one running mechanism 100, and driving motors are installed on the middle 2 retractable driving wheels 11, so that the other two retractable driving wheels are driven by belt transmission.

Further, as shown in fig. 5-10, after the crane frame detects the wheel position, the longitudinal motor 73 drives the longitudinal ball screw 71 to rotate, and the longitudinal ball screw 71 drives the crane frame bottom plate 70 to extend onto the rail along the longitudinal guide rail 72.

Further, the transverse motor 76 drives the transverse ball screw 77 to rotate, the transverse ball screw 77 drives the lifting frame to move towards the wheels along the transverse guide rail 70, after the lifting frame contacts the wheels, the hydraulic pump 79 arranged in the lifting frame is started to lift the wheels, after the lifting frame lifts the vehicle, the pressure sensor 80 arranged in the lifting frame detects that the pressure value reaches a set value, the lifting action of the hydraulic device is stopped, the value of the pressure sensor at the moment is recorded, and the value is converted into the weight value of each wheel.

The application provides a railway loading point weighing car system, which comprises a trolley moving on a rail and at the bottom of a train, wherein a weighing platform is carried on the trolley to automatically weigh the train, and the system provides a perfect solution for weighing the train in a railway freight yard.

The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.

Claims

1. A railway loading point weighing car system for automatic measurement of train weight installed in an existing railway yard stock track, comprising: the lifting frame (200) for lifting wheels of the train and automatically lifting and weighing the wheels of the train is fixedly connected to a carrying platform (300), two ends of the carrying platform (300) are fixedly connected with running mechanisms (100) moving on the tracks, and a plurality of retractable driving wheels (11) capable of automatically retracting the wheel structures of the train are fixedly connected to the running mechanisms (100);

the retractable driving wheel (11) comprises a bearing seat (50), a spline shaft (63) and a spring (64) are arranged through the bearing seat (50), one end of the spline shaft (63) is connected with the wheel (52), and the other end of the spline shaft (63) is connected to the conveying rod (54); one end of the spring (64) is connected with the bearing seat (50), the other end of the spring is connected to the conveying rod (54), the conveying rod (54) is connected with the power bearing (53), two bearings (62) are arranged in the bearing seat (50) side by side, the retractable driving wheel (11) further comprises an anti-collision wheel (51), a bearing II (61) is fixedly connected to the anti-collision wheel (51), the bearing II (61) is connected with one end of the anti-collision shaft (60), and the other end of the anti-collision shaft (60) is connected with the bearing seat (50).

2. A railway loading point weighing car system according to claim 1, further characterized by: the lifting frame (200) comprises a lifting frame shell (78), the lifting frame shell (78) is fixedly connected to a transverse guide rail (70), a hydraulic cylinder and a pressure sensor are arranged in the lifting frame shell (78), the transverse guide rail (70) is fixedly connected to a lifting frame bottom plate (75), the lifting frame bottom plate (75) is connected to a longitudinal guide rail (72), and the longitudinal guide rail (72) is fixedly connected to a carrying platform bottom plate (74); the hoisting frame (200) further comprises a transverse motor (76) and a longitudinal motor (73), one end of the transverse motor (76) is connected with a transverse ball screw (77), one end of the longitudinal motor (73) is connected with a longitudinal ball screw (71), the transverse motor (76) controls the hoisting frame (200) to perform translational motion along the transverse guide rail (70) through the transverse ball screw (77), the longitudinal motor (73) is fixedly connected to the carrying platform bottom plate (74), and the longitudinal motor (73) controls the hoisting frame bottom plate (75) to perform translational motion along the longitudinal guide rail (72) through the longitudinal ball screw (71).