Automatic railway liquid cargo loading and metering system

Abstract

The invention provides an automatic railway liquid cargo loading and metering system, and relates to the technical field of railway transportation. The foundation pit bottom plate is fixed in a foundation pit, four sets of supporting columns are fixed to the foundation pit bottom plate, a top plate is fixed to the upper ends of the four sets of supporting columns, a moving plate slides on the top plate, a rotating rod is installed on the top plate through a bearing, and belt wheels are fixed to the left end and the right end of the rotating rod. When the liquid level is detected to reach a set value, an alarm is responded, pumping is stopped suddenly, and the anti-overflow sensor is arranged, so that the situation that under the condition that a liquid level meter is wrong or pumping is out of control, goods are continuously filled without speed reduction pumping and pumping stopping operation according to the early warning and alarming requirements, and consequently, preventive operations such as goods overflowing and overflowing are adopted can be prevented; and after the anti-overflow sensor responds, pumping is stopped suddenly, and the device alarm is started to remind the device to maintain, so that the safety of the liquid cargo loading process is improved, and the reliability of the system is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of railway transportation, and in particular to an automatic loading and metering system for railway liquid cargo. Background Art

[0002] The automatic loading and metering system of railway liquid cargo is an important part of modern logistics and transportation, especially when handling bulk liquid cargo such as petroleum, chemical raw materials, etc. The role of this system is particularly critical. With the development of railway transportation and the increase in the volume of liquid cargo transportation, the traditional manual loading method can no longer meet the needs of high efficiency and high precision, so a railway liquid cargo automatic loading and metering system is designed.

[0003] In the prior art, the process of loading liquid cargo often relies on manual operation, which is not only inefficient but also has potential safety hazards and measurement errors. Summary of the invention

[0004] The disclosed embodiment relates to an automatic loading and metering system for railway liquid cargo, so as to solve the problems of low efficiency, potential safety hazards and metering errors in the prior art loading method.

[0005] In a first aspect of the present disclosure, there is provided a railway liquid cargo automatic loading and metering system, specifically comprising: a foundation pit floor;

[0006] The foundation pit bottom plate is fixed in the foundation pit, and four groups of supporting columns are fixed on the foundation pit bottom plate, and a top plate is fixed on the upper ends of the four groups of supporting columns, and a movable plate is slidably arranged on the top plate, and a rotating rod is installed on the top plate through a bearing, and pulleys are fixed on the left and right ends of the rotating rod, and two groups of wheel seats are installed on the top plate through bolts, and pulleys are arranged on the wheel seats, and a No. 1 connecting belt is connected between the pulleys on the left and right ends of the rotating rod and the pulleys on the two groups of wheel seats, and the left and right ends of the movable plate are respectively fixedly connected with the two groups of No. 1 connecting belts, and a No. 1 motor is installed on the lower end of the top plate through bolts, and the output shaft of the No. 1 motor is connected to the rotating rod through a belt, and an explosion-proof feedback type Adjustable frequency conversion pump, a welding frame is welded on the movable plate, two groups of fixed rods are fixed on the welding frame, the two groups of fixed rods are locked with mounting plates by bolts, a hydraulic rod is fixed on the mounting plate, a lifting frame is fixed to the lower end of the piston rod of the hydraulic rod, a filling tube is movable on the lifting frame, a spring is installed between the filling tube and the lifting frame, the upper end of the filling tube is connected with the liquid outlet of the explosion-proof feedback adjustable frequency conversion pump through a connecting pipe, a locking seat is installed on the filling tube by bolts, a detection rod is locked on the locking seat by bolts, a density meter, a feedback liquid level gauge, a thermometer and an anti-overflow sensor are installed on the detection rod, and the feedback liquid level gauge can set the liquid level value and output a control signal.

[0007] In at least some embodiments,

[0008] Two groups of support frames are fixed on the foundation pit bottom plate, four groups of connecting rods are installed between the two groups of support frames by bolts, the four groups of connecting rods are provided with brackets in a rectangular array, and supporting wheels are installed on the brackets. Four groups of conveying seats are fixed between the two groups of support frames, two groups of rollers are installed on the conveying seats, and a conveyor belt is connected between the two groups of rollers.

[0009] In at least some embodiments,

[0010] A No. 2 motor is installed on the conveying seat near the right side of the support frame by bolts, and a driving rod is connected between the rollers at the rear ends of the four groups of conveying seats, and the right end of the driving rod is connected to the output shaft of the No. 2 motor.

[0011] In at least some embodiments,

[0012] A base frame is fixed on the bottom plate of the foundation pit, a movable frame is slid on the base frame, and a No. 1 screw rod is installed on the base frame through a bearing, the No. 1 screw rod is threadedly matched with the lower end of the movable frame, a No. 3 motor is installed on the base frame through bolts, and the output shaft of the No. 3 motor is connected to the right end of the No. 1 screw rod.

[0013] In at least some embodiments,

[0014] A landing seat is slidably arranged on the movable frame, a No. 2 screw rod is installed on the movable frame through a bearing, a pulley is fixed to the upper end of the No. 2 screw rod, and a No. 4 motor is installed on the movable frame through bolts, a pulley is fixed to the output shaft of the No. 4 motor, a belt is connected between the pulley on the output shaft of the No. 4 motor and the pulley on the upper end of the No. 2 screw rod, the No. 2 screw rod is threadedly matched with the landing seat, a support plate is arranged on the upper end of the landing seat, and the support plate is flush with the ground when it is lowered to the lowest height.

[0015] In at least some embodiments,

[0016] Two groups of fixing columns are fixed on the foundation pit bottom plate, shell seats are installed on the two groups of fixing columns through bolts, and a cylinder rod is installed on the lower end of the shell seat through bolts. The cylinder rod is a hollow structure, and through grooves are arranged at the front and rear ends of the cylinder rod.

[0017] In at least some embodiments,

[0018] A No. 3 screw rod is installed inside the barrel rod through a bearing, a bevel gear is fixed on the No. 3 screw rod, a gearbox is installed on the shell seat through bolts, a No. 5 motor is installed on the gearbox through bolts, the output shaft of the No. 5 motor is connected to the input shaft of the gearbox, a bevel gear is fixed on the output shaft of the gearbox, and the bevel gear on the output shaft of the gearbox meshes with the bevel gear on the No. 3 screw rod.

[0019] In at least some embodiments,

[0020] A movable cylinder is movable on the cylinder rod, and connecting blocks are installed at the front and rear ends of the movable cylinder. A matching seat is arranged inside the cylinder rod, and the matching seat is threadedly matched on the third screw rod. Two sets of connecting blocks are respectively connected to the front and rear ends of the matching seat by bolts.

[0021] In at least some embodiments,

[0022] The two groups of movable cylinders are respectively fixed with plate No. 1 and plate No. 2, a beam is fixed between plate No. 1 and plate No. 2, and motor No. 6 is installed on plate No. 2 by bolts, a pulley is installed at the rear end of the beam, a traction belt is connected between the output shaft of motor No. 6 and the pulley at the rear end of the beam, a movable seat is movable on the beam, and the movable seat is fixedly connected to the traction belt on the beam.

[0023] In at least some embodiments,

[0024] A mounting seat is installed at the lower end of the movable seat by bolts, a base is fixed on the mounting seat, three groups of hinged rods are fixed on the base, a movable plate is hinged on the hinged rod, a suction cup is installed on the movable plate, and an annular frame is installed on the base by bolts, a clamping plate is installed on the annular frame, a spring is installed between the clamping plate and the annular frame, four groups of clamping plates are provided, and a vehicle identifier is clamped between the four groups of clamping plates, and the vehicle identifier is used to automatically identify vehicle information and match related information.

[0025] The present invention provides a railway liquid cargo automatic loading and metering system, which has the following beneficial effects:

[0026] In the present invention, the vehicle travels onto the pallet, and the No. 2 motor and the No. 3 motor are operated to adjust the vehicle position. The vehicle information is automatically identified by the vehicle identifier, and the safe loading volume is automatically customized according to different vehicle information and different cargo parameters. The safe liquid level corresponding to the safe loading volume is obtained according to the volume table corresponding to the volume and liquid level in the national railway tank car volume verification certificate of each car. The liquid level can be verified by the liquid level gauge during the on-site loading process. In order to ensure reliable and accurate on-site loading and metering, the on-site setting of the safe liquid level can be divided into a liquid level warning value before the safe liquid level value is almost reached and a liquid level warning value immediately reaching the safe liquid level value. The alarm value at the time and the fine-tuning value for later correction are three gears (the fine-tuning value is given and set based on the empirical data of a period of operation). It is also possible to use a combination of two of the three, the warning value, the alarm value and the fine-tuning value, or other combinations. After confirming the above settings, start the explosion-proof feedback adjustable frequency pump to start filling the railway vehicle with goods. At the same time, turn on the feedback liquid level gauge, temperature, and density sensing device. During the filling process, the temperature and density are collected in different areas at different times according to the settings. When the liquid level reaches the warning setting value, the control system feeds back to the power pumping system to automatically adjust the speed of the power pumping system to slow down (the speed reduction is determined according to the level of the warning setting value). Size), when the liquid level reaches the alarm setting value, the control system adjusts the power pumping system and stops pumping (later fine-tuning is given and set based on the empirical data of a period of operation). After the loaded cargo surface is left to stand for a period of time, the final liquid level value is collected. At the same time, the liquid level value, density value (which can be the average value of multiple collections), and temperature value (which can be the average value of multiple collections) are uploaded to the data processing system through the communication module. The metering software module performs metering based on the above automatically collected data, and outputs metering results and reports. The anti-overflow sensor is always turned on during the loading process to prevent overloading and overflow of the cargo. Wait for the system to automatically detect the loading and metering After the measurement is completed, the system will prompt that the vehicle can leave after loading and metering. After a long period of operation, the data analysis and management module will continuously conduct linkage analysis on the loading and metering results, make predictions and corrections, and propose empirical fine-tuning values. Through fine-tuning, the loading volume is made as close to the 95% upper limit as possible to solve the problems of overloading and underloading, meet the safety management requirements for the transportation of liquid hazardous goods, increase the filling rate of a single vehicle, save transportation costs, and fundamentally solve the problems of low measurement accuracy, slow speed, poor reliability, high consumption of manpower and material resources, difficulty in management, low level of automation, overloading, underloading, frequent operations, and low efficiency of traditional loading and metering methods.

[0027] In addition, when the liquid level reaches the set value, the present invention responds to the alarm and stops pumping urgently. By setting an anti-overflow sensor, it can be prevented that in the case of a liquid level meter error or pumping out of control, the cargo continues to be filled without reducing the pumping speed and stopping the pumping operation as required by the early warning alarm, resulting in preventive operations such as bubbling and overflowing of the cargo. After the anti-overflow sensor responds, the pumping is stopped urgently and the device alarm is started to remind the device to repair. This not only improves the safety of the liquid cargo loading process, but also enhances the reliability of the system, ensuring that liquid overflow can be effectively prevented under various operating conditions to protect the safety of the cargo and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0029] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0030] In the attached picture:

[0031] Figure 1 A schematic diagram of the workflow of this application is shown;

[0032] Figure 2 The overall structure diagram of the present application is shown;

[0033] Figure 3 A schematic structural diagram of the support frame of the present application is shown;

[0034] Figure 4 A schematic diagram of the structure of the rear end of the conveying seat of the present application is shown;

[0035] Figure 5 A schematic diagram of the structure of the movable frame of the present application is shown;

[0036] Figure 6 This application shows Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0037] Figure 7 A schematic structural diagram of a fixed column of the present application is shown;

[0038] Figure 8 A schematic structural diagram of the barrel rod of the present application is shown;

[0039] Fig. 9 This application shows Figure 8 A schematic diagram of the enlarged structure at B in the middle;

[0040] Fig.10 A schematic structural diagram of the beam rod of the present application is shown;

[0041] Fig.11A schematic structural diagram of the mounting base of the present application is shown;

[0042] Fig.12 This application shows Fig.11 Schematic diagram of the enlarged structure at C in the middle;

[0043] Fig.13 A schematic structural diagram of a support column of the present application is shown;

[0044] Fig.14 A schematic diagram of the structure of the mobile plate of the present application is shown;

[0045] Fig.15 This application shows Fig.14 Schematic diagram of the enlarged structure at D in the middle.

[0046] Reference numerals list

[0047] 1. Foundation pit bottom plate; 11. Support frame; 12. Connecting rod; 121. Support seat; 122. Support wheel; 13. Conveying seat; 131. Conveying belt; 132. Driving rod; 133. No. 2 motor; 14. Support plate;

[0048] 2. Base frame; 21. Movable frame; 211. Screw rod No. 2; 212. Motor No. 4; 22. Lifting seat; 23. Screw rod No. 1; 231. Motor No. 3;

[0049] 3. Fixed column; 31. Shell seat; 311. Gearbox; 312. No. 5 motor; 32. Cylinder rod; 321. No. 3 screw rod; 322. Matching seat; 33. Movable cylinder; 331. Connecting block; 34. No. 1 plate; 35. No. 2 plate; 351. No. 6 motor; 36. Beam rod; 361. Moving seat; 37. Mounting seat; 371. Base; 372. Articulated rod; 3721. Movable plate; 3722. Suction cup; 373. Ring frame; 374. Clamping plate; 38. Vehicle identifier;

[0050] 4. Support column; 41. Top plate; 411. Rotating rod; 412. No. 1 motor; 42. Moving plate; 421. Explosion-proof feedback adjustable frequency pump; 43. Wheel seat; 431. No. 1 connecting belt; 44. Welding frame; 441. Fixed rod; 442. Mounting plate; 443. Hydraulic rod; 45. Lifting frame; 451. Filling tube; 452. Locking seat; 46. Detection rod; 461. Densitometer; 462. Feedback level gauge; 463. Thermometer; 464. Anti-overflow sensor. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Example 1: Please refer to Figures 1 to 15 :

[0053] The present invention proposes a railway liquid cargo automatic loading and metering system, comprising: a foundation pit bottom plate 1;

[0054] The foundation pit bottom plate 1 is fixed in the foundation pit, and four groups of support columns 4 are fixed on the foundation pit bottom plate 1. A top plate 41 is fixed on the upper ends of the four groups of support columns 4. A movable plate 42 slides on the top plate 41, and a rotating rod 411 is installed on the top plate 41 through a bearing. Pulleys are fixed on the left and right ends of the rotating rod 411. Two groups of wheel seats 43 are installed on the top plate 41 through bolts. Pulleys are arranged on the wheel seats 43. A No. 1 connecting belt 431 is connected between the pulleys at the left and right ends of the rotating rod 411 and the pulleys on the two groups of wheel seats 43. The left and right ends of the movable plate 42 are respectively fixedly connected with the two groups of No. 1 connecting belts 431. A No. 1 motor 412 is installed on the lower end of the top plate 41 through bolts. The output shaft of the No. 1 motor 412 is connected to the rotating rod 411 through a belt. An explosion-proof feedback adjustable frequency pump 421 is installed on the movable plate 42 through bolts. The movable plate 42 A welding frame 44 is welded on the welding frame 44, two groups of fixing rods 441 are fixed on the welding frame 44, mounting plates 442 are locked on the two groups of fixing rods 441 by bolts, hydraulic rods 443 are fixed on the mounting plates 442, and a lifting frame 45 is fixed on the lower end of the piston rod of the hydraulic rod 443, a filling tube 451 is movable on the lifting frame 45, a spring is installed between the filling tube 451 and the lifting frame 45, the upper end of the filling tube 451 is connected with the liquid outlet of the explosion-proof feedback adjustable frequency pump 421 through a connecting pipe, a locking seat 452 is installed on the filling tube 451 by bolts, a detection rod 46 is locked on the locking seat 452 by bolts, a density meter 461, a feedback liquid level gauge 462, a thermometer 463 and an anti-overflow sensor 464 are installed on the detection rod 46, and the feedback liquid level gauge 462 can set the liquid level value and output a control signal.

[0055] In the disclosed embodiment,

[0056] Two groups of support frames 11 are fixed on the foundation pit bottom plate 1, and four groups of connecting rods 12 are installed between the two groups of support frames 11 by bolts. The four groups of connecting rods 12 are all provided with brackets 121 in a rectangular array, and supporting wheels 122 are installed on the brackets 121. Four groups of conveying seats 13 are fixed between the two groups of support frames 11, and two groups of rollers are installed on the conveying seats 13. A conveyor belt 131 is connected between the two groups of rollers. A No. 2 motor 133 is installed on the conveying seat 13 near the right side of the support frame 11 by bolts, and a driving rod 132 is connected between the rollers at the rear end of the four groups of conveying seats 13. The right end of the driving rod 132 is connected to the output shaft of the No. 2 motor 133, and its function is: running the No. 2 motor 133 makes the driving rod 132 rotate, and the driving rod 132 drives the conveyor belt 131 to run, so that the position of the support plate 14 can be adjusted.

[0057] In the present disclosure,

[0058] A base frame 2 is fixed on the foundation pit bottom plate 1, a movable frame 21 is slidably mounted on the base frame 2, and a No. 1 screw rod 23 is installed on the base frame 2 through a bearing, and the No. 1 screw rod 23 is threadedly matched with the lower end of the movable frame 21, a No. 3 motor 231 is installed on the base frame 2 through bolts, and the output shaft of the No. 3 motor 231 is connected to the right end of the No. 1 screw rod 23, a landing seat 22 is slidably mounted on the movable frame 21, a No. 2 screw rod 211 is installed on the movable frame 21 through a bearing, a pulley is fixed to the upper end of the No. 2 screw rod 211, and a No. 4 motor 212 is installed on the movable frame 21 through bolts, A pulley is fixed on the output shaft of the No. 4 motor 212, and a belt is connected between the pulley on the output shaft of the No. 4 motor 212 and the pulley on the upper end of the No. 2 screw rod 211. The No. 2 screw rod 211 is threadedly matched with the landing seat 22, and a support plate 14 is provided on the upper end of the landing seat 22. When the support plate 14 is lowered to the lowest height, it is flush with the ground. Its function is: by running the No. 4 motor 212 to rotate the No. 2 screw rod 211, the support plate 14 rises and lifts the vehicle, and by running the No. 3 motor 231 to rotate the No. 1 screw rod 23, the left and right position of the vehicle can be adjusted.

[0059] Embodiment 2, based on embodiment 1,

[0060] Two groups of fixing columns 3 are fixed on the foundation pit bottom plate 1, and a shell seat 31 is installed on both groups of fixing columns 3 by bolts. A cylinder rod 32 is installed on the lower end of the shell seat 31 by bolts. The cylinder rod 32 is a hollow structure, and the front and rear ends of the cylinder rod 32 are provided with through grooves. A No. 3 screw rod 321 is installed inside the cylinder rod 32 through a bearing, and a bevel gear is fixed on the No. 3 screw rod 321. A gearbox 311 is installed on the shell seat 31 by bolts, and a No. 5 motor 312 is installed on the gearbox 311 by bolts. The output shaft of the No. 5 motor 312 is connected to the input shaft of the gearbox 311, and the output shaft of the gearbox 311 is connected to the input shaft of the gearbox 311. A bevel gear is fixed, and the bevel gear on the output shaft of the gearbox 311 is meshed with the bevel gear on the third screw rod 321. A movable cylinder 33 is movable on the cylinder rod 32. Connecting blocks 331 are installed at the front and rear ends of the movable cylinder 33, and a matching seat 322 is provided inside the cylinder rod 32. The matching seat 322 is threadedly matched on the third screw rod 321. Two sets of connecting blocks 331 are respectively connected to the front and rear ends of the matching seat 322 by bolts. Its function is: running the fifth motor 312 can make the third screw rod 321 rotate, so as to adjust the height of the movable cylinder 33, so as to facilitate the adjustment of the height of the vehicle identifier 38.

[0061] Embodiment 3, based on Embodiment 1 and Embodiment 2,

[0062] The two groups of movable cylinders 33 are respectively fixed with a No. 1 plate 34 and a No. 2 plate 35, a beam rod 36 is fixed between the No. 1 plate 34 and the No. 2 plate 35, and a No. 6 motor 351 is installed on the No. 2 plate 35 by bolts, a pulley is installed at the rear end of the beam rod 36, a traction belt is connected between the output shaft of the No. 6 motor 351 and the pulley at the rear end of the beam rod 36, a movable seat 361 is movable on the beam rod 36, the movable seat 361 is fixedly connected to the traction belt on the beam rod 36, a mounting seat 37 is installed at the lower end of the movable seat 361 by bolts, a base 371 is fixed on the mounting seat 37, three groups of hinged rods 372 are fixed on the base 371, and movable Plate 3721, a suction cup 3722 is installed on the movable plate 3721, and a ring frame 373 is installed on the base 371 by bolts, a clamping plate 374 is installed on the ring frame 373, a spring is installed between the clamping plate 374 and the ring frame 373, and four groups of clamping plates 374 are provided, and a vehicle identifier 38 is clamped between the four groups of clamping plates 374. The vehicle identifier 38 is used to automatically identify vehicle information and match related information. Its function is: running the No. 6 motor 351 allows the traction belt to drive the movable seat 361 to move forward and backward, which is convenient for adjusting the front and rear position of the vehicle identifier 38, and the setting of the clamping plate 374 facilitates the disassembly and assembly of the vehicle identifier 38.

[0063] The working principle of this embodiment is as follows: the vehicle travels onto the pallet 14, and the second motor 133 and the third motor 231 are operated to adjust the vehicle position. The vehicle information is automatically identified by the vehicle identifier 38, and the safe loading volume is automatically customized according to different vehicle information and different cargo parameters. The safe liquid level corresponding to the safe loading volume is obtained according to the volume table corresponding to the volume and liquid level in the national railway tank car volume verification certificate of each car. In order to ensure reliable and accurate loading and metering on site, the setting of the safe liquid level on site can be divided into three levels: a liquid level warning value before the safe liquid level value is about to be reached, an alarm value when the safe liquid level value is about to be reached, and a fine-tuning value for later correction (the fine-tuning value is given and set based on the empirical data of a period of operation). It is also possible to use a combination of two of the warning value, alarm value and fine-tuning value or other combinations. After confirming the above settings, start the explosion-proof feedback adjustable frequency pump 421 to start filling the railway vehicle with cargo, and at the same time start the feedback liquid level meter 4 62. Temperature and density sensing devices. During the filling process, the temperature and density are collected in different areas at different times according to the settings. When the liquid level reaches the warning setting value, the control system feeds back to the power pumping system and automatically adjusts the power pumping system to slow down (the speed reduction is determined according to the warning setting value). When the liquid level reaches the alarm setting value, the control system adjusts the power pumping system to stop pumping (later fine-tuning is given and set based on empirical data from a period of operation). After the liquid surface of the loaded cargo has been allowed to stand for a period of time, the final liquid level value is collected. At the same time, the liquid level value, density value (which can be an average value of multiple collections), and temperature value (which can be an average value of multiple collections) are uploaded to the data processing system through the communication module. The metering software module performs metering based on the above automatically collected data and outputs metering results and reports. During the loading process, the anti-overflow sensor 464 is always turned on to prevent overloading and overflow of the cargo. After the system automatically detects that the loading and metering are completed, it prompts that the vehicle can leave after loading and metering.

[0064] In this article, there are a few points to note:

[0065] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0066] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0067] The above are only specific implementation methods of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be covered by the protection scope of the present disclosure.

Claims

1. A railway liquid cargo automatic loading and metering system, comprising: The foundation pit bottom plate (1) is characterized in that: The foundation pit bottom plate (1) is fixed in the foundation pit, four groups of support columns (4) are fixed on the foundation pit bottom plate (1), a top plate (41) is fixed on the upper ends of the four groups of support columns (4), a movable plate (42) is slidably mounted on the top plate (41), a rotating rod (411) is mounted on the top plate (41) via a bearing, belt pulleys are fixed on both left and right ends of the rotating rod (411), two groups of wheel seats (43) are mounted on the top plate (41) via bolts, belt pulleys are arranged on the wheel seats (43), and the rotating rod (411) is provided with a plurality of movable plates (42) on the top plate (41). A No. 1 connecting belt (431) is connected between the pulleys at the left and right ends and the pulleys on the two groups of wheel seats (43); the left and right ends of the movable plate (42) are respectively fixedly connected to the two groups of No. 1 connecting belts (431); a No. 1 motor (412) is installed at the lower end of the top plate (41) by bolts; the output shaft of the No. 1 motor (412) is connected to the rotating rod (411) by a belt; an explosion-proof feedback adjustable frequency pump (421) is installed on the movable plate (42) by bolts; the movable plate (42) A welding frame (44) is welded on the welding frame (44), two groups of fixing rods (441) are fixed on the welding frame (44), mounting plates (442) are locked on the two groups of fixing rods (441) by bolts, a hydraulic rod (443) is fixed on the mounting plate (442), a lifting frame (45) is fixed on the lower end of the piston rod of the hydraulic rod (443), a filling pipe (451) is movably provided on the lifting frame (45), a spring is installed between the filling pipe (451) and the lifting frame (45), and the upper end of the filling pipe (451) is connected to the lifting frame (45). The pipe is connected to the liquid outlet of the explosion-proof feedback adjustable frequency pump (421); a locking seat (452) is installed on the filling pipe (451) by means of bolts; a detection rod (46) is locked on the locking seat (452) by means of bolts; a density meter (461), a feedback liquid level meter (462), a thermometer (463) and an anti-overflow sensor (464) are installed on the detection rod (46); the feedback liquid level meter (462) can set a liquid level value and output a control signal.

2. The railway liquid cargo automatic loading and metering system according to claim 1 is characterized in that: Two groups of support frames (11) are fixed on the foundation pit bottom plate (1), four groups of connecting rods (12) are installed between the two groups of support frames (11) by bolts, the four groups of connecting rods (12) are all provided with supporting seats (121) in a rectangular array, supporting wheels (122) are installed on the supporting seats (121), and four groups of conveying seats (13) are fixed between the two groups of support frames (11), two groups of rollers are installed on the conveying seats (13), and a conveyor belt (131) is connected between the two groups of rollers.

3. The railway liquid cargo automatic loading and metering system according to claim 2 is characterized in that: A second motor (133) is installed on the conveying seat (13) near the right side of the support frame (11) by bolts, and a driving rod (132) is connected between the rollers at the rear ends of the four groups of conveying seats (13), and the right end of the driving rod (132) is connected to the output shaft of the second motor (133).

4. The railway liquid cargo automatic loading and metering system according to claim 2 is characterized in that: A base frame (2) is fixed on the foundation pit bottom plate (1), a movable frame (21) is slidably mounted on the base frame (2), a first screw rod (23) is mounted on the base frame (2) via a bearing, the first screw rod (23) is threadedly matched with the lower end of the movable frame (21), a third motor (231) is mounted on the base frame (2) via bolts, and an output shaft of the third motor (231) is connected to the right end of the first screw rod (23).

5. The railway liquid cargo automatic loading and metering system according to claim 4 is characterized in that: A landing seat (22) is slidably mounted on the movable frame (21), a second screw rod (211) is mounted on the movable frame (21) via a bearing, a pulley is fixed to the upper end of the second screw rod (211), and a fourth motor (212) is mounted on the movable frame (21) via bolts, a pulley is fixed to the output shaft of the fourth motor (212), a belt is connected between the pulley on the output shaft of the fourth motor (212) and the pulley at the upper end of the second screw rod (211), the second screw rod (211) is threadedly matched with the landing seat (22), a support plate (14) is arranged at the upper end of the landing seat (22), and the support plate (14) is flush with the ground when it is lowered to the lowest height.

6. The railway liquid cargo automatic loading and metering system according to claim 4 is characterized in that: Two groups of fixing columns (3) are fixed on the foundation pit bottom plate (1), and shell seats (31) are installed on the two groups of fixing columns (3) by means of bolts. A cylindrical rod (32) is installed at the lower end of the cylindrical rod (31) by means of bolts. The cylindrical rod (32) is a hollow structure, and through grooves are arranged at the front and rear ends of the cylindrical rod (32).

7. The railway liquid cargo automatic loading and metering system according to claim 6 is characterized in that: A third screw rod (321) is installed inside the cylindrical rod (32) via a bearing, a bevel gear is fixed on the third screw rod (321), a gearbox (311) is installed on the housing seat (31) via bolts, a fifth motor (312) is installed on the gearbox (311) via bolts, an output shaft of the fifth motor (312) is connected to an input shaft of the gearbox (311), a bevel gear is fixed on the output shaft of the gearbox (311), and the bevel gear on the output shaft of the gearbox (311) is meshed with the bevel gear on the third screw rod (321).

8. The railway liquid cargo automatic loading and metering system according to claim 7 is characterized in that: A movable cylinder (33) is movable on the cylinder rod (32), and connecting blocks (331) are installed at the front and rear ends of the movable cylinder (33). A matching seat (322) is arranged inside the cylinder rod (32), and the matching seat (322) is threadedly matched on the third screw rod (321). Two sets of connecting blocks (331) are respectively connected to the front and rear ends of the matching seat (322) by bolts.

9. The railway liquid cargo automatic loading and metering system according to claim 8, characterized in that: The two groups of movable cylinders (33) are respectively fixed with a first plate (34) and a second plate (35), a beam (36) is fixed between the first plate (34) and the second plate (35), and a sixth motor (351) is installed on the second plate (35) by bolts, a belt pulley is installed at the rear end of the beam (36), a traction belt is connected between the output shaft of the sixth motor (351) and the belt pulley at the rear end of the beam (36), and a movable seat (361) is movable on the beam (36), and the movable seat (361) is fixedly connected to the traction belt on the beam (36).

10. The railway liquid cargo automatic loading and metering system according to claim 9, characterized in that: The lower end of the movable seat (361) is mounted with a mounting seat (37) by bolts, a base (371) is fixed on the mounting seat (37), three groups of hinged rods (372) are fixed on the base (371), a movable plate (3721) is hinged on the hinged rod (372), a suction cup (3722) is mounted on the movable plate (3721), and an annular frame (373) is mounted on the base (371) by bolts, a clamping plate (374) is mounted on the annular frame (373), a spring is mounted between the clamping plate (374) and the annular frame (373), four groups of clamping plates (374) are provided, and a vehicle identifier (38) is clamped between the four groups of clamping plates (374), and the vehicle identifier (38) is used to automatically identify vehicle information and match related information.

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