CN222800139U - A high-precision dynamic curve track scale - Google Patents

Abstract

The utility model belongs to the field of dynamic curve track scales, in particular to a high-precision dynamic curve track scale which adopts a combined design of a multi-vector curve track pad weighing sensor module assembly _、 Y-type track weighing detection sensing device, a curve alpha slope steel sleeper module assembly and a curve steel rail alpha arc anti-climbing device module assembly, wherein the high-precision dynamic curve track scale comprises a steel rail, a basic embedded steel plate, a Y-type track weighing detection sensing device, a multi-vector curve track pad weighing sensor module, a curve alpha slope steel sleeper module assembly and a curve steel rail alpha arc anti-climbing device module assembly; the Y-type track weighing detection sensing device generates a linear triangular waveform voltage signal, compensates for the defect that the vertical force output of the multi-vector curve track pad weighing sensor is in a trapezoid wave at two ends under the condition of continuous multi-fulcrum distribution, plays a role in widening the length of a measurement area and blocks the adjacent wheel interference of the measurement area.

Description

High-precision dynamic curve rail scale

Technical Field

The utility model relates to the field of dynamic curve rail scales, in particular to a high-precision dynamic curve rail scale.

Background

The dynamic rail scale can realize continuous dynamic and uniform passing of each section of vehicles, has the characteristics of high metering speed, accurate metering, safety, reliability and the like for cargo trains, passenger trains and special railway trains in the running process, is widely applied to national irons and high-speed irons, is used for various large and medium-sized industrial and mining enterprise railway special lines such as iron and steel, metallurgy, coking, petrifaction, energy, thermal power generation, cement building materials, machinery manufacturing, mines, airports, ports, wharfs, logistics goods yards, transfer stations and the like, dynamically meters various railway vehicles and various special railway vehicles, and plays an important role in the precise metering of raw materials continuously produced in large scale in working condition enterprises.

However, the conventional curve rail weighbridge is in a broken rail form, namely, a rail outside a weighing platform is disconnected from the weighing rail on the weighing platform, and a large number of mechanical components such as a bearing girder, a sensor, a torsion plate and the like are required to be placed in a foundation pit below the ground surface, so that the safety potential hazards are further provided for vehicles running in a curve area, meanwhile, a horizontal force measuring sensor for centrifugal force and centripetal force of a curve vehicle is lacking, errors caused by the actual centrifugal force and centripetal force can not be detected by light by a vertical force sensor, and a column type pressure sensor arranged at the curve position can not be used for detecting errors caused by the actual centrifugal force and centripetal force when the vehicles turn, and when the column type pressure sensor is arranged at the curve position and is arranged at a position with a gradient on the curve, the sensor is influenced by lateral force, so that the technical indexes such as the linearity, the hysteresis and the repeatability of the sensor are greatly discounted, and therefore the prior art can not meet the basic requirements of metering performance, and the high-precision dynamic curve rail weighbridge with new functions needs to be developed.

Disclosure of utility model

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The utility model aims to solve the technical problems that the conventional curve track scale belongs to a broken rail form, namely, a rail outside a weighing platform is disconnected from a weighing rail on the weighing platform, has potential safety hazards to vehicles running in a curve area, lacks a horizontal force measuring sensor for centrifugal force and centripetal force of the curve vehicles, cannot detect errors caused by the actual centrifugal force and centripetal force when the vehicles turn by means of a vertical force sensor, and is also provided with a column type pressure sensor at the curve position, when the column type pressure sensor is arranged at the position of a gradient of the curve, the sensor is influenced by lateral force, so that the technical indexes such as linearity, hysteresis and repeatability of the sensor are greatly reduced, and the foundation pit structure of the conventional dynamic curve track scale is innovated into a plane structure.

The high-precision dynamic curve track scale adopts the combined design of a multi-vector curve track pad weighing sensor assembly and a Y-type track weighing detection sensing device, and comprises a steel rail, a basic embedded steel plate, the Y-type track weighing detection sensing device, the multi-vector curve track pad weighing sensor assembly, a curve alpha slope sleeper module assembly and a curve steel rail alpha arc anti-climbing module assembly;

The Y-shaped track weighing detection sensing device assembly comprises a locking buckle, a mounting base, an adjustable positioning rod, a left Y-shaped track weighing sensor, a special clamping pressure rod, a left insulating pad, a right insulating pad and a right Y-shaped track weighing sensor;

The multi-vector curve rail pad weighing sensor assembly comprises a multi-vector curve rail pad weighing sensor body, M24 multiplied by 120 high-strength bolts, a first thickened flat pad, a first thickened spring pad, a first B-shaped spring strip, a first M24 multiplied by 70 high-strength bolts, a first rail bottom shock absorption rubber cushion, arc-shaped insulating pad male and female under the first curve spring strip, a stainless steel sealing cover, a stainless steel waterproof joint, anti-freezing sand-proof anti-aging elastic glue, a sensor adjusting seat, a horizontal force sensor output shielding cable, a vertical force sensor output shielding cable, a horizontal force sensor wiring compensation plate, a vertical force sensor wiring compensation plate, a resistance strain gauge and a flexible pouring sealant.

The curve alpha slope steel sleeper module assembly consists of a curve alpha slope steel sleeper seat, a curve spring strip arc rail pressing device male and female, a second B-shaped spring strip, a second rail bottom damping rubber cushion, a second curve spring strip lower arc insulation pad male and female, a second M24 multiplied by 70 high-strength bolt, a third thickened flat pad and a third thickened spring pad, and the curve steel rail alpha arc anti-climbing device consists of a curve steel rail alpha arc anti-climbing bracket male and female, a steel rail anti-climbing rod, a cotter pin and an anti-climbing rod insulation sleeve.

Preferably, the Y-shaped track weighing detection sensing device module is permanently fixed on the rail web of the steel rail through a clamp, and the Y-shaped track weighing detection sensing device is fixed at the position of the steel rail or the steel web plate according to a certain interval.

Preferably, the Y-shaped track weighing sensor is composed of an elastomer, a Wheatstone bridge, a compensation circuit board, a waterproof sealing outlet connector, a shielding signal cable, a flexible transition isolation region, three-grab sealing glue and inert gas in a cavity, a resistance strain gauge, a stress control region cavity web, an anti-slip damping contact surface, a Y-shaped track weighing sensor fixing and a moment applying positioning hole.

Preferably, R2 and R4 in the Wheatstone bridge and the compensating circuit board are pull-direction resistance strain gauges, R1 and R3 are press-direction resistance strain gauges, rct/2 is an elastic modulus compensating resistor, R0 is an output resistor standardization compensating resistor, rz is a zero point output compensating resistor, rs is a sensitivity coefficient compensating resistor, R i is an input resistor standardization compensating resistor, RL is a nonlinear compensating resistor, rmt is a sensitivity temperature compensating resistor, rt is a zero point temperature compensating resistor, rp is a sensitivity temperature compensating linear compensating resistor, U+ is a bridge power supply positive electrode, U-is a bridge power supply negative electrode, E+ is a signal output positive electrode, and E-is a signal output negative electrode.

Preferably, the output waveform of the Y-shaped track weighing detection sensing device is a linear triangle waveform, the vertical force output of the multi-vector curve track pad weighing sensor assembly is a linear trapezoid under the condition of continuous multi-fulcrum distribution, and the Y-shaped track weighing detection sensing device is characterized by being a linear triangle waveform, and is overlapped and complemented with the linear trapezoid waveform of the multi-vector curve track pad weighing sensor assembly to form a rectangular waveform which is suitable for dynamic track weighing.

Preferably, the modules are uniformly distributed in a fan shape along the length direction of the steel rail at certain intervals, and the heights of the two ends of the elastic body of the multi-vector curve rail pad weighing sensor assembly are matched with the inclination angles of the two steel rails in the curve area.

Preferably, a slope with a ratio of 1 to 40 is designed at the bottom of a steel rail circular arc clamping groove on the elastic body of the multi-vector curve rail pad weighing sensor module, and the steel rail clamping groove on the elastic body of the multi-vector curve rail pad weighing sensor module adopts a circular arc clamping groove matched with the curvature radius of a curve area and the size of the steel rail model adopted by the line.

Preferably, the horizontal force sensor comprises resistance strain gauges R1, R2, R5, R6, R9, R10, R13 and R14, and compensation resistors Rto, rct/2 and Rc/2,Ri,Rz,U i,Uo,Rw1, wherein the horizontal force sensor is formed by connecting a compensation plate through a Wheatstone bridge circuit, R1, R6, R10 and R13 in the Wheatstone bridge circuit are pull tabs, R2, R5, R9 and R14 are press sheets, rto are temperature zero compensation resistors, rct is an elastic modulus compensation resistor, rc is a sensitivity coefficient compensation resistor, R i is input resistor consistency compensation, rz is zero compensation resistor, rw1 is vertical force interference resistance, U i is direct current bridge supply voltage, and Uo is voltage signal output.

Preferably, the vertical force sensor comprises resistance strain gauges R3, R4, R7, R8, R11, R12, R15 and R16, and compensation resistors Rto, rct/2, rc/2, ri, rz, U i and Uo, wherein the vertical force sensor is connected with a compensation plate through a Wheatstone bridge circuit group bridge, R3, R8, R11 and R16 in the Wheatstone bridge circuit are pull-tabs, R4, R7, R12 and R15 in the Wheatstone bridge circuit are tabletting, rto is a temperature zero compensation resistor, rct is an elastic modulus compensation resistor, rc is a sensitivity coefficient compensation resistor, R i is input resistor consistency compensation, rz is a zero compensation resistor, U i is a direct current bridge supply voltage, and Uo is voltage signal output.

The utility model has the following beneficial effects:

The Y-shaped track weighing detection sensing device generates a linear triangular waveform voltage signal, not only compensates for the defect angle of two ends of a trapezoid wave output by a multi-vector curve track pad weighing sensor under the condition of continuous multi-fulcrum distribution and plays a role of widening the length of a measurement area, but also blocks the adjacent wheel interference of the weighing area, so that a steel rail in the weighing area and a steel rail outside the weighing area are changed into a continuous rail structure, the weight signal of a wheel in the weighing area, which is being measured or is being acquired, is cut off, the accuracy that the adjacent wheel weight outside a weighing platform is interfered or overlapped to the weight of the wheel under measurement by continuous rail breakage is avoided, the sharp pulse of the rising edge of the triangular wave waveform output by the sensor is realized, and the functions of automatically judging the direction of an incoming vehicle, calculating the speed of a running vehicle passing through a dynamic track scale, automatically starting the power amplifier of the track scale number identification detection device (replacing the magnetic steel used in the past and eliminating the instability of the magnetic steel used in the field) and the like are realized, meanwhile, the pulse weight signal generated by the automatic calculation of the adjacent wheel weight sensor at the two ends of the weighing area is utilized, and the weight sensor is automatically calculated, and the model number of the weight sensor is compared with the weight sensor module of the vertical sensor is output by the Y-shaped sensor module, and the weight sensor module is compared with the type weighing module 1.

The foundation structure of the high-precision dynamic curve rail scale can be in the forms of an integral concrete pre-buried steel plate structure foundation, an integral concrete ground beam pre-buried steel plate structure foundation, an integral steel reinforced concrete pre-buried structure foundation, a steel integral frame structure and the like, so that the problem that the conventional structure for supporting a bearing girder and supporting a bearing girder or a scale body by means of point contact of four column sensors and supporting a large number of mechanical parts in a foundation pit is avoided, and the random fluctuation error of acquired metering data can be caused once a train accelerates and brakes on the bearing girder.

The high-precision dynamic curve rail weighbridge adopts a simple design of a combination of the multi-vector curve rail pad weighing sensor component and the Y-type rail weighing detection sensor device which are more suitable for the curve motion trail of the vehicle, avoids the structural form of a foundation pit structure in the past, omits a large number of mechanical parts such as a bearing girder and the like, achieves green manufacturing, realizes nondestructive installation of steel rails or components, ensures the stability, reliability and safety of continuous rail metering without the foundation pit of the dynamic curve rail weighbridge, and comprehensively improves the metering performance of the system.

The utility model discloses a high-precision dynamic curve rail scale, which adopts a continuous rail technology to ensure the technical extension of continuous rails applied in the field of curve or curve rail scale in the dynamic curve rail scale and the rail in the vicinity thereof, and can adopt long rails, whole rails of 12.5 meters and 25 meters or seamless welded rails, thereby avoiding short rails, reducing rail joints, avoiding impact and vibration during passing and metering, improving the stability and reliability of metering data acquisition and improving the driving safety of trains.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic plan view of a high-precision dynamic curve railroad track scale of the present utility model.

FIG. 2 is a schematic diagram of a basic cross-section of the high-precision dynamic curve railroad track scale of the present utility model.

FIG. 3 is a schematic diagram of a multi-vector curve rail pad weighing sensor module in a curve inclination angle (A-A) section of the high-precision dynamic curve rail scale.

FIG. 4 is a schematic diagram of a multi-vector curve rail pad weighing sensor assembly in a high-precision dynamic curve rail scale of the present utility model.

FIG. 5 is a schematic diagram of the wiring of the curved rail clamp groove, horizontal force and vertical force patches of the multi-vector curve rail pad weighing sensor body in the high-precision dynamic curve rail scale of the present utility model.

FIG. 6 is a schematic diagram of the curved rail clamping groove, horizontal force and vertical force stress directions of the multi-vector curve rail pad weighing sensor body in the high-precision dynamic curve rail scale of the utility model.

Fig. 7 is a schematic B-section view of a Y-track weighing detection sensor module assembly in a high-precision dynamic curve railroad track scale of the present utility model.

FIG. 8 is a perspective and combined schematic diagram of left and right Y-shaped track weighing detection sensors K1 and K2 in the high-precision dynamic curve rail scale

Fig. 9 is a schematic cross-sectional view of a curvilinear alpha-slope sleeper module assembly in a high-precision dynamic curvilinear railroad track scale of the present utility model.

Fig. 10 is a schematic cross-sectional view of a curved rail α arc anticreeper module assembly in a high precision dynamic curved railroad track scale of the present utility model.

Fig. 11 is an electrical schematic diagram of a Y-type track weighing detection sensor in the high-precision dynamic curve railroad track scale of the present utility model.

FIG. 12 is an electrical schematic diagram of a vertical force output sensor of a multi-vector curve rail pad weighing sensor module in a high precision dynamic curve railroad track scale of the present utility model.

FIG. 13 is an electrical schematic diagram of a horizontal force output sensor of a multi-vector curve rail pad weighing sensor module in a high-precision dynamic curve railroad track scale of the present utility model.

FIG. 14 is a schematic diagram of the wiring of a combination of vertical force sensors in a plurality of multi-vector curve rail pad weighing sensors in a high-precision dynamic curve rail scale according to the present utility model.

FIG. 15 is a schematic diagram of the wiring of a combination of horizontal force sensors of a plurality of multi-vector curve rail pad weighing sensors in a high-precision dynamic curve rail scale according to the present utility model.

FIG. 16 is a schematic illustration of a vehicle weighing in a curved curve in a high accuracy dynamic curve railroad track scale of the present utility model.

FIG. 17 is a schematic diagram of a stress model of a multi-vector curve rail pad weighing sensor in a curve bend in the high-precision dynamic curve rail scale of the utility model.

Fig. 18 is a force analysis schematic diagram of the Y-track weighing detection sensor module in the high-precision dynamic curve rail scale of the present utility model independently used in curve A, B.

FIG. 19 is a schematic diagram of a force analysis of independent use of the multi-vector curve pad weighing sensor assemblies N1-N# in the high-precision dynamic curve railroad track scale of the present utility model.

FIG. 20 is a diagram showing a force analysis of a combination of multi-vector curve pad weighing sensor modules N1-N# and Y-type track weighing detection sensor modules in a high-precision dynamic curve railroad track scale according to the present utility model.

Fig. 21 is a side view of a high precision dynamic curve railroad track scale structure of the present utility model.

Fig. 22 is a schematic diagram of the structure of the male and female arc-shaped insulating pads under the curved spring strips of the present utility model.

Fig. 23 is a schematic structural view of male and female curved spring bar curved rail pressing devices according to the present utility model.

Fig. 24 is a schematic structural view of male and female of the curved alpha rail anti-climbing bracket of the present utility model.

1, A multi-vector curve rail pad weighing sensor body; 2, M24X 120 high strength bolts; 3, a first thickened flat pad; the anti-aging device comprises a first thickened spring pad, a first B-shaped spring strip, a first M24 multiplied by 70 high-strength bolt, a second thickened flat pad, a second thickened spring pad, a first rail bottom damping rubber pad, a second thickened spring pad, a third thickened spring pad, a fourth thickened spring pad, a first rail bottom damping rubber pad, a third thickened spring pad, a fourth thickened spring pad, a fifth thickened spring pad, a third thickened spring pad, a fourth thickened spring pad, a fifth thickened spring pad, a sixth thickened spring pad, a fourth thickened spring pad, a third thickened pads, a third is, a third is V is a third is, the third is the fourth is the third is the elastic pads of the elastic pads is the is.is..is.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings 1 to 24.

Example 1

The first embodiment of the utility model provides a high-precision dynamic curve rail weighbridge, which adopts the combined design of a multi-vector curve rail pad weighing sensor assembly and a Y-shaped rail weighing detection sensing device, and comprises a steel rail, a foundation embedded steel plate, a Y-shaped rail weighing detection sensing device, a multi-vector curve rail pad weighing sensor assembly, a curve alpha slope steel sleeper module assembly and a curve steel rail alpha arc anti-climbing device module assembly IV, wherein the foundation structure of the high-precision dynamic curve rail weighbridge can be in the forms of an embedded steel plate structure foundation of integral concrete, a ground beam embedded steel plate structure foundation of integral concrete, an integral steel reinforced concrete embedded structure foundation, a steel integral frame structure and the like, the foundation part adopts a plane foundation design, and is lower than the manufacturing cost of a foundation pit foundation with a reciprocating hybrid cavity by 1/3, the foundation engineering construction is simple, and the random fluctuation error of acquired metering data caused by shaking and shaking of the bearing girder once the train is accelerated and braked on the bearing girder is in virtue of point contact of four column type sensors in the past;

The Y-shaped track weighing detection sensing device assembly comprises a locking buckle 21, a mounting base 22, a positioning rod 23, a left Y-shaped track weighing sensor 24, a special clamping pressure rod 25, a left Y-shaped anti-slip damping three-grab 26, a right Y-shaped anti-slip damping three-grab 27 and a right Y-shaped track weighing sensor 28;

The multi-vector curve rail pad weighing sensor assembly comprises a multi-vector curve rail pad weighing sensor body 1, M24 multiplied by 120 high-strength bolts 2, a first thickened flat pad 3, a second thickened flat pad 7, a first thickened elastic pad 4, a second thickened elastic pad 8, a first B-shaped elastic strip 5, a first M24 multiplied by 70 high-strength bolt 6, a first rail bottom damping rubber cushion 9, an arc-shaped insulating pad male and female 10 under the first curve elastic strip, a stainless steel sealing cover 11, a stainless steel waterproof joint 12, an anti-freezing sand-proof anti-aging elastic adhesive 13, a sensor adjusting seat 14, a horizontal force sensor output shielding cable 15, a vertical force sensor output shielding cable 16, a horizontal force sensor wiring compensation plate 17, a vertical force sensor wiring compensation plate 18, a resistance strain gauge 19 and a flexible pouring sealant 20.

The curve alpha slope steel sleeper module assembly consists of a curve alpha slope steel sleeper seat 29, a curve spring bar arc rail pressing device male and female 30, a second B spring bar 31, a second rail bottom shock absorption rubber pad 32, a second curve spring bar lower arc insulation pad male and female 33, a second M24 multiplied by 70 high-strength bolt 34, a third thickened flat pad 35 and a third thickened spring pad 36, the high-precision dynamic curve rail scale removes a large number of mechanical parts such as a traditional curve dynamic rail scale bearing girder, the mechanical height of the curve dynamic rail scale is reduced by about 1 meter, the stability of a train entering the dynamic curve rail scale is greatly improved, steel and green manufacturing are realized, the high-precision dynamic curve rail scale is realized, a continuous rail technology is adopted for rails in the dynamic curve rail scale and the rails in the adjacent regions, the continuous rail technology extension applied in the curve or curve rail scale field is ensured, the whole rails of 12.5 meters and 25 meters or welded rails 1 can be adopted, the short rails are eliminated, the rail joints are reduced, the over-running stability of the train is avoided, and the running stability is not only improved when the running stability is not only measured, but also the running stability is improved.

Example 2

The present embodiment is based on the previous embodiment, and is different from the previous embodiment in that the present embodiment provides a Y-type track weighing detection sensing device module, specifically.

The Y-shaped track weighing detection sensing device module is permanently fixed on the rail web of the steel rail through a clamp, the Y-shaped track weighing detection sensing device is fixed at the position of the steel rail or the steel web of the steel rail according to a certain interval, the steel rail can be assembled without any drilling, no damage is generated on the steel rail, on-line installation and debugging are simple, the expansion and the extension of the application of a continuous track dynamic curve rail balance technology in a curve line are realized, the Y-shaped track weighing detection sensing device is fixed at the position of the steel rail or the steel web of the steel rail according to a certain interval, the steel rail or the steel rail is supported by a fulcrum at the outer side of the Y-shaped track weighing detection sensing device, fy relative to the sensor is loaded above the inner side of the Y-shaped track weighing sensing device of the steel rail or the steel rail, and a voltage signal Fy1 proportional to the load is output through the Y-shaped track weighing sensor in an effective weighing area inside the Y-shaped track weighing detection sensing device.

Example 3

This embodiment is based on the previous embodiment and differs from the previous embodiment in that this embodiment provides the electrical principle of the Y-track weighing sensor apparatus.

R2 and R4 in the Wheatstone bridge and the compensating circuit board are pull-to resistance strain gauges, R1 and R3 are press-to resistance strain gauges, rct/2 is an elastic modulus compensating resistor, R0 is an output resistor standardization compensating resistor, rz is a zero point output compensating resistor, rs is a sensitivity coefficient compensating resistor, ri is an input resistor standardization compensating resistor, RL is a nonlinear compensating resistor, rmt is a sensitivity temperature compensating resistor, rt is a zero point temperature compensating resistor, rp is a sensitivity temperature compensating linear compensating resistor, U+ is a bridge power supply positive electrode, U-is a bridge power supply negative electrode, E+ is a signal output positive electrode, and E-is a signal output negative electrode.

The Y-shaped track weighing detection sensor assembly has the characteristic of linear triangular waveform, and is overlapped and complemented with the linear trapezoidal waveform of the multi-vector curve track pad weighing sensor assembly 4 to form a rectangular waveform required by a dynamic track scale, and in the dynamic track scale, a voltage signal of the linear triangular waveform is generated, so that the defect that the vertical force output of the multi-vector curve track pad weighing sensor is in a trapezoid shape under the condition of continuous multi-pivot distribution is overcome, and the length of a measurement area is widened; meanwhile, the output triangle wave crest blocks the interference of adjacent wheels outside the weighing area, so that the steel rail inside the weighing area and the steel rail outside the weighing area are changed into a continuous rail structure, the weight signal of the wheel which is being measured or is being collected in the weighing area is cut off, the accuracy that the weight of the adjacent wheels outside the weighing platform is not interfered or overlapped to the weight which is being measured through continuous rail is avoided, the sharp pulse of the rising edge of the triangle wave waveform output by the sensor is also used for realizing the automatic judgment of the coming vehicle direction, the speed calculation of the coming vehicle passing through the dynamic rail scale and the automatic opening of the power amplifier of the rail scale vehicle number identification and detection device (the magnetic steel used in the past is replaced and the instability of the magnetic steel in the field is eliminated), the beneficial condition is created, meanwhile, the pulse peak generated by the sensors at the two ends of the wheel passing through the weighing area is utilized, the axle distance is automatically calculated, and the model, the number of each carriage of a cargo train is automatically judged, and the power amplifier (replacing magnetic steel) of the vehicle number identification and detection device is automatically opened. The vertical force Fy1 relative to the sensor is output through the Y-type track weighing detection sensing device component II of the steel rail plug-in type wheel load force sensor.

Example 4

The present embodiment is based on the previous embodiment, and is different from the previous embodiment in that the present embodiment provides a module, in particular.

The multi-vector curve rail pad weighing sensor assembly is uniformly distributed in a fan shape along the length direction of the steel rail according to a certain interval, and the heights of the two ends of the elastic body of the multi-vector curve rail pad weighing sensor assembly are matched with the inclination angles of the two steel rails in the curve area.

The bottom of the arc clamping groove of the steel rail on the elastic body of the multi-vector curve rail pad weighing sensor module is provided with a slope with the ratio of 1 to 40 which is consistent with the requirements of a railway part, and the arc clamping groove matched with the curvature radius of a curve area and the size of the model of the steel rail adopted by the line is adopted by the arc clamping groove on the elastic body of the multi-vector curve rail pad weighing sensor module, so that the rail weighing sensor module not only meets the railway working standard, but also plays a role in buffering and damping, simultaneously controls the track gauge of the steel rail 1 in a fixed curve area, ensures safe running under dynamic conditions, facilitates the stable positioning of the steel rail 1 in the curve area, ensures that the centrifugal force and the centripetal force of a vehicle running in the curve area can be accurately transmitted to the sensor through arc contact, ensures that the original horizontal force and the vertical force obtained by the sensor are quite true, is beneficial to the comprehensive improvement of the weighing performance of the high-precision dynamic curve track, and ensures the running safety of the curve.

Example 6

The present embodiment is based on the previous embodiment, and differs from the previous embodiment in that the present embodiment provides an electrical principle, in particular.

The horizontal force sensor comprises resistance strain gauges R1, R2, R5, R6, R9, R10, R13 and R14, compensating resistors Rto, rct/2, rc/2, ri, rz, ui, uo and Rw1, the compensating plates 17 are connected through the horizontal force sensor, and the compensating plates are formed through a Wheatstone bridge circuit group bridge, wherein R1, R6, R10 and R13 in the Wheatstone bridge circuit are pull tabs; R2, R5, R9 and R14 are tabletting; rto is temperature zero compensation resistance, rct is elastic modulus compensation resistance, rc is sensitivity coefficient compensation resistance, ri is input resistance consistency compensation, rz is zero compensation resistance, rw1 is vertical force interference resistance, U i is direct current bridge supply voltage, uo is voltage signal output, the vehicle is in a process of traveling on a linear track line, the vehicle actually belongs to a snake-shaped motion track, the vehicle is in a process of traveling on a curve line, the influence of the gravity center of a loaded object is high and low, the curve shape of an arc curve or an S curve is influenced, continuous real-time acquisition, real-time judgment, real-time calculation and real-time compensation correction are carried out on the influence of the centrifugal force and the centripetal force of the vehicle in the curve region through a horizontal force sensor, meanwhile, the compensating circuit of the weighing sensor graph 13 of a multi-vector curve rail pad is designed for the purpose that the output signal of the vertical force is far more than the output signal of the horizontal force, the compensating circuit of the vertical force interference influence is realized, the sensors on different vectors on the curve line due to the fact that the centrifugal force and the curve line are interfered by the horizontal force are specially designed, the accurate and the reliability of the accurate and the true error of the curve and the true error of the vehicle is ensured, the accuracy and the accuracy of the system is ensured, and the accuracy of the acquisition and the reliability of the centrality and the reliability of the curve and the reliability are achieved, the method is beneficial to improving the authenticity, reliability, stability and accuracy of the output signals of the sensor, and conveniently measuring the weight of each independent wheel, the eccentricity in the running process of the vehicle and the variation Fx of the centripetal force on the horizontal force equivalent to the sensor;

The positive stress is generated when the Uo outputs a positive signal, and the reverse stress is generated when the Uo outputs a negative signal; the multi-vector curve track pad weighing sensor body 1 can know that a vehicle is in a curve area in real time through the magnitude of a horizontal force output signal, and the error caused by centrifugal force and centripetal force is generated by the vehicle, when the horizontal force sensor outputs a positive signal, the vehicle is subjected to a positive force value caused by the centripetal force, when the horizontal force sensor outputs a negative signal, the vehicle is subjected to a negative force value caused by the centrifugal force, the magnitude of the positive and negative signals of the horizontal force signal is acquired in real time through the real-time acquisition of the horizontal force signal and the computer analysis and comparison, the computer can make a decision of correction and compensation in real time according to a mathematical model of the dynamic track scale, the technology improvement and the technology innovation of the dynamic track scale are brought into play an extremely important role, and the horizontal force sensor of the multi-vector curve track pad weighing sensor body 1 judges the centripetal force and the centrifugal force relative to the sensor through outputting a positive signal or a negative signal, thereby being more beneficial to reducing the complexity of electrical design, debugging and maintenance and manufacturing cost;

The vertical force sensor comprises resistance strain gauges R3, R4, R7, R8, R11, R12, R15 and R16, and compensation resistors Rto, rct/2, rc/2, ri, rz, ui and Uo, wherein the resistance strain gauges R3, R8, R11 and R16 are pull plates, R4, R7, R12 and R15 are press plates, rto are temperature zero compensation resistors, rct is an elastic modulus compensation resistor, rc is a sensitivity coefficient compensation resistor, ri is an input resistor consistency compensation resistor, rz is a zero compensation resistor, ui is a direct current supply bridge voltage, uo is a voltage signal output, a plurality of multi-vector curve rail pad weighing sensor assemblies are distributed according to a certain interval distance to form a multi-pivot structural beam, the vertical force sensors 1-N# in the multi-vector curve rail pad weighing sensors are respectively connected to corresponding data interfaces, the vertical force sensors are respectively connected with the vertical force sensors through a computer to acquire data-collecting square wave form a data-collecting square wave-shaped sensor 1# and an input-shaped wave-shaped sensor 1# and an output a composite wave-shaped sensor 1# along a vertical wave-shaped curve 1, an X# and an input-shaped sensor 1# and an output a vertical force sensor# is a square wave-shaped, and a composite wave-shaped sensor 1# is formed by the vertical force sensor is a voltage signal output.

The working principle is that when the vehicle passes through a measuring road section of the multi-vector curve rail pad weighing sensor assembly, the vehicle applies vertical force Fy to the slope sensor, wherein m is mass and g is gravity acceleration,The radius of the arc of the steel rail 1 at the curve is R, the speed of the locomotive or carriage is v, the two steel rails 1 at the curve have an inclination angle alpha between the outer rail and the inner rail foundation of the curve area due to the requirement of centripetal force, when the locomotive passes through the curve track scale, the multi-vector curve track pad weighing sensor body 15 of the curve track scale receives vertical force Fy and horizontal force Fx relative to the sensor direction, wherein

:Solving the two formulas can obtainSince α.ltoreq.1, therefore

In the whole process of metering a train which drives a train with more than 50 sections of vehicles to form a group through a continuous track dynamic curve rail weigher, as pedestrians and motor vehicles at nearby unattended crossings are required to brake and accelerate when the train is subjected to weighing on a special line, the accuracy of the dynamic rail weigher is affected (in the process of metering the dynamic rail weigher used on a fully-closed national railway, the problems are almost not existed), namely the whole process of metering the train on the curve dynamic rail weigher of the special line cannot completely ensure uniform speed passing, and therefore, a rail weigher system is required to be subjected to speed increasing correction coefficient expressed by k 1;

As the national standard of the dynamic track scale requires that the railways at the two ends of the dynamic track scale are respectively 100 meters of straightness, the gradient within 100 meters of straightness is less than or equal to 0.2 percent, and the slope beyond 100 meters of straightness is possibly an ascending slope or a descending slope, the ascending slope of a heavy-duty train needs to be accelerated, and the descending slope needs to be braked, therefore, a correction coefficient of a directional error is required to be added to a dynamic track scale system, and the correction coefficient is expressed as k 2;

Meanwhile, due to the technical level difference of equipment installation and debugging personnel, foundation construction errors and installation errors are easy to generate, in order to eliminate the mechanical errors caused by construction and installation, correction after the value of the dynamic curve track scale is transmitted by the national standard dynamic track scale is needed, and for this purpose, the correction coefficient of the equipment installation errors is increased and is expressed as k 3;

By theoretical weight formula of vehicle It can be seen that the theoretical weight mg of each vehicle section is related to the voltage signals Fx, fy, curve slope α obtained by the sensors, wherein the voltage signals of the force obtained by Fx with respect to the horizontal direction of the sensor are all derived from the horizontal force output sensor in the multi-vector curve pad weighing sensor, the voltage signals of the force obtained by Fy with respect to the vertical force direction of the sensor are all derived from the combination of the Y-track weighing detection sensor 3 sensor Fy1 and all the vertical force sensors Fy2 in the multi-vector curve pad weighing sensor, respectively, so fy=fy1+fy2, and the formula fy=fy1+fy2 and the correction coefficients k1, k2, k3 are substituted into the weight formulaThe mathematical model (mg) 'approximatelyequal to K1×K2×K3 of the actual weight mg' of each section of the vehicle of the dynamic curve track scale can be obtained

Claims (9)

1. The high-precision dynamic curve track scale is characterized by comprising a steel rail, a basic embedded steel plate, a Y-shaped track weighing detection sensing device, a multi-vector curve track pad weighing sensor assembly, a curve alpha slope steel sleeper module assembly and a curve steel rail alpha arc anti-climbing device module assembly;

The Y-shaped track weighing detection sensing device assembly comprises a locking buckle (21), a mounting base (22), a positioning rod (23), a left Y-shaped track weighing sensor (24), a special clamping pressure rod (25), a left Y-shaped anti-slip damping three-grab (26), a right Y-shaped anti-slip damping three-grab (27) and a right Y-shaped track weighing sensor (28);

The multi-vector curve rail pad weighing sensor assembly comprises a multi-vector curve rail pad weighing sensor body (1), M24 multiplied by 120 high-strength bolts (2), a first thickened flat pad (3), a second thickened flat pad (7), a first thickened spring pad (4), a second thickened spring pad (8), a first B-shaped spring strip (5), a first M24 multiplied by 70 high-strength bolts (6), a first rail bottom damping rubber cushion (9), arc-shaped insulating pad male and female (10) under the first curve spring strip, a stainless steel sealing cover (11), a stainless steel waterproof joint (12), anti-freezing sand anti-aging elastic glue (13), a sensor adjusting seat (14), a horizontal force sensor output shielding cable (15), a vertical force sensor output shielding cable (16), a horizontal force sensor wiring compensation plate (17), a vertical force sensor wiring compensation plate (18) resistance strain gauge (19) and a flexible pouring sealant (20);

The curve alpha slope steel sleeper module assembly comprises a curve alpha slope steel sleeper seat (29), a curve spring strip arc rail pressing device male and female (30), a second B-shaped spring strip (31), a second rail bottom shock absorption rubber pad (32), a second curve spring strip lower arc insulation pad male and female (33), a second M24 multiplied by 70 high-strength bolt (34), a third thickened flat pad (35) and a third thickened spring pad (36);

The curve steel rail alpha arc anti-climbing device module assembly comprises a curve alpha steel rail anti-climbing support male and female (37), a steel rail anti-climbing rod (38), cotter pins (39) and an anti-climbing rod insulating sleeve (40).

2. The high-precision dynamic curve rail weighbridge as claimed in claim 1, wherein the Y-shaped rail weighing detection sensor module is permanently fixed on the rail web of the steel rail through a clamp, and the Y-shaped rail weighing detection sensor module is fixed at the position of the steel rail or the steel web plate according to a certain interval.

3. The high-precision dynamic curve rail weighbridge of claim 1, wherein the Y-shaped rail weigher comprises an elastomer on the left side and the right side of the Y-shaped rail weigher, a Wheatstone bridge and a compensation circuit board, a waterproof sealing wire outlet connector, a shielding signal cable, a flexible transition isolation area cavity, three grabs, sealant and inert gas, resistance strain gauges R1, R2, R3 and R4, a stress control area cavity web plate, three grabs anti-slip damping contact surface, a Y-shaped rail weigher fixing and moment applying positioning hole.

4. The high-precision dynamic curve rail weighbridge is characterized in that R2 and R4 in the Wheatstone bridge and a compensation circuit board are pull-to resistance strain gauges, R1 and R3 are push-to resistance strain gauges, rct/2 is an elastic modulus compensation resistor, R0 is an output resistor standardization compensation resistor, rz is a zero output compensation resistor, rs is a sensitivity coefficient compensation resistor, ri is an input resistor standardization compensation resistor, RL is a nonlinear compensation resistor, rmt is a sensitivity temperature compensation resistor, rt is a zero temperature compensation resistor, rp is a sensitivity temperature compensation linear compensation resistor, U+ is a bridge power supply anode, U-is a bridge power supply anode, E+ is a signal output anode, and E-is a signal output anode.

5. The high-precision dynamic curve rail weighbridge as set forth in claim 1, wherein the output waveform of the Y-shaped rail weighing detection sensor device is in a linear triangle waveform, the vertical force output of the multi-vector curve rail pad weighing sensor assembly is in a linear trapezoid under the condition of continuous multi-pivot distribution, and the Y-shaped rail weighing detection sensor device is in a linear triangle waveform characteristic, and is overlapped and complemented with the linear trapezoid waveform of the multi-vector curve rail pad weighing sensor assembly to form a rectangular waveform required by adapting to the dynamic rail weighbridge.

6. The high-precision dynamic curve rail scale of claim 1, wherein the multi-vector curve rail pad weighing sensor assembly is uniformly distributed in a fan shape along the length direction of the steel rail according to a certain interval, and the heights of two ends of an elastomer of the multi-vector curve rail pad weighing sensor assembly are matched with the inclination angles of two steel rails in a curve area.

7. The method of claim 6, wherein the bottom of the rail circular arc clamping groove on the elastic body of the multi-vector curve rail pad weighing sensor assembly is provided with a 1 to 40 slope which is consistent with the requirements of a railway part, and the rail clamping groove on the elastic body of the multi-vector curve rail pad weighing sensor assembly adopts a circular arc clamping groove which is matched with the curvature radius of a curve area and the size of the rail model adopted by a curve area line.

8. The high-precision dynamic curve rail weighbridge of claim 7, wherein the horizontal force sensor comprises resistance strain gauges R1, R2, R5, R6, R9, R10, R13 and R14, and compensation resistors Rto, rct/2, rc/2, ri, rz, ui, uo and Rw1, and the horizontal force sensor is composed of a horizontal force sensor wiring compensation plate (17) through a Wheatstone bridge circuit group bridge, wherein R1, R6, R10 and R13 in the Wheatstone bridge circuit are pull-tabs, R2, R5, R9 and R14 are tablets, rto is a temperature zero compensation resistor, rct is an elastic modulus compensation resistor, rc is a sensitivity coefficient compensation resistor, ri is an input resistor consistency compensation resistor, rz is a zero compensation resistor, rw1 is a vertical force interference resistance compensation resistor, ui is a direct current bridge voltage supply voltage, and Uo is a voltage signal output.

9. The high-precision dynamic curve rail weighbridge of claim 7, wherein the vertical force sensor comprises resistance strain gauges R3, R4, R7, R8, R11, R12, R15 and R16, and compensation resistors Rto, rct/2, rc/2, ri, rz, ui and Uo, and the vertical force sensor is composed by a vertical force sensor wiring compensation plate (18) through a Wheatstone bridge circuit group bridge, wherein R3, R8, R11 and R16 in the Wheatstone bridge circuit are pull-ups, R4, R7, R12 and R15 are tabletting, rto are temperature zero compensation resistors, rct is an elastic modulus compensation resistor, rc is a sensitivity coefficient compensation resistor, ri is input resistor consistency compensation, rz is a zero compensation resistor, ui is a direct current bridge supply voltage, and Uo is a voltage signal output.