Railway boxcar mobile goods inlet and outlet mechanism, system and goods inlet and outlet method

Abstract

The invention relates to the technical field of railway boxcar loading and unloading, in particular to a railway boxcar moving goods inlet and outlet mechanism and system.The railway boxcar moving goods inlet and outlet mechanism comprises a boxcar, a side door and an opening and closing mechanism, the side door is arranged on the side face of the boxcar, and a side door guide rail is arranged on the inner side of the side door; the side door guide rail is perpendicular to the length direction of the boxcar body, the opening and closing mechanism is used for controlling opening and closing of the side door, a transverse guide rail and a supplementary rail are arranged in the boxcar and correspond to each other, and the supplementary rail is used for connecting the transverse guide rail and the side door guide rail after the side door is opened. And the freight trolley can transversely move in a reciprocating manner to load and unload goods. The cargo loading and unloading efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway boxcar loading and unloading, and in particular to a railway boxcar mobile loading and unloading mechanism, system and loading and unloading method. Background Art

[0002] The loading and unloading methods of railway boxcars include roof loading and unloading, tail loading and unloading, and side door loading and unloading. Among them, side door loading and unloading is suitable for easy-to-carry goods such as boxed and bagged goods. Some boxcars are equipped with side doors, and goods can be loaded and unloaded through the side doors. In order to improve the loading and unloading efficiency, some boxcars adopt wide-width doors or full side door structures. For example, the Chinese invention patent with authorization announcement number CN111942410B discloses a fast-moving movable side wall boxcar with large side doors, that is, a large side door is used to load and unload goods from the side of the boxcar. However, the large side door structure requires high strength, increases the cost of the boxcar, and the forklift needs to use a mobile platform to enter and exit the boxcar, so the loading and unloading efficiency is not high. Summary of the invention

[0003] The purpose of the present invention is to address the defects of the prior art and provide a railway boxcar mobile loading and unloading mechanism, system and loading and unloading method, which can improve the efficiency of loading and unloading goods.

[0004] In order to solve the above technical problems, in the first aspect, the present invention proposes a railway boxcar moving loading and unloading mechanism, comprising a boxcar, a side door and an opening and closing mechanism, wherein the side door is arranged on the side of the boxcar, and a side door guide rail is arranged on the inner side of the side door, and the side door guide rail is perpendicular to the length direction of the boxcar body, and the opening and closing mechanism is used to control the opening and closing of the side door, and a transverse guide rail and a supplementary rail are arranged in the boxcar, and the transverse guide rail and the side door guide rail are arranged correspondingly, and the supplementary rail is used to connect the transverse guide rail and the side door guide rail after the side door is opened, so that the freight car can reciprocate and translate laterally for loading and unloading.

[0005] In some embodiments, a fixed seat is provided in the boxcar, a rocker arm driving cylinder is hinged on the fixed seat, a rocker arm is hinged on the piston end of the rocker arm driving cylinder, the rocker arm is rotatably connected to the bottom plate of the boxcar, the supplementary rail is fixed on the rocker arm, and the rocker arm driving cylinder controls the rotation of the supplementary rail by controlling the rotation of the rocker arm, so that the supplementary rail can connect the transverse guide rail and the side door guide rail after the side door is opened.

[0006] Furthermore, the side doors are symmetrically arranged on both sides of the boxcar, and each of the side doors is provided with two parallel side door guide rails, and the two symmetrical side doors correspond to two transverse guide rails and four supplementary rails.

[0007] Furthermore, the rocker arm driving cylinder and the supplementary rail are both arranged between two transverse guide rails.

[0008] In some embodiments, a support is fixedly arranged in the boxcar, and the swing arm is rotatably arranged on the support.

[0009] In some embodiments, a hinge is provided on the outer side of the boxcar near the bottom, and the side door is rotatably connected to the boxcar via the hinge.

[0010] In some embodiments, the opening and closing mechanism includes a side door driving cylinder, and both ends of the side door driving cylinder are respectively hinged to the inner side of the side door and the bottom plate of the boxcar.

[0011] In some embodiments, a stopper is provided at one end of the side door guide rail, and the stopper is used to prevent the freight trolley from slipping out of the side door guide rail.

[0012] In the second aspect, the present invention provides a mobile loading and unloading system, including a PLC controller and a freight cart, the freight cart including a weight sensor, wheels and a motor, the motor is used to drive the wheels to rotate, the PLC controller is connected to the motor and the weight sensor, the weight sensor is used to detect the weight of the goods, and the PLC controller is used to control the motor to drive the freight cart according to the signal of the weight sensor.

[0013] Furthermore, a groove is provided on the outer edge of the wheel, and the supplementary rail, the transverse guide rail and the side door guide rail can be embedded in the groove.

[0014] In a third aspect, the present invention provides a method for loading and unloading goods in a railway boxcar, comprising:

[0015] When loading or unloading is required, the side door is opened, and the rocker drive cylinder controls the rotation of the auxiliary rail so that the transverse guide rail, auxiliary rail and side door guide rail are connected to form a complete guide rail. The freight trolley is hoisted onto the side door guide rail, and the weight sensor transmits the detected cargo weight value to the PLC controller. Each time the PLC controller receives a cargo weight value detected by the weight sensor that exceeds the preset weight value or the cargo weight value is zero, it controls the freight trolley to enter or leave the boxcar for loading or unloading.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention provides a side door on the side of the boxcar, arranges a side door guide rail on the inner side of the side door, arranges a transverse guide rail and a supplementary rail in the boxcar, realizes the connection between the transverse guide rail and the side door guide rail, enables the goods to be moved back and forth inside and outside the boxcar through a freight trolley, and is conducive to improving the efficiency of loading and unloading goods.

[0018] 2. The present invention provides a rocker arm and a rocker arm driving cylinder, so that when the rail-stitching is needed, the rail-stitching can be rotated to a direction perpendicular to the transverse guide rail. When the rail-stitching is needed, the rail-stitching can be rotated to be in a straight line with the transverse guide rail and fixed, and the structure is simple.

[0019] 3. The two symmetrical side doors of the present invention correspond to four supplementary rails, so that the freight trolley can enter and exit the boxcar from the side door on any side, thereby improving the flexibility of loading and unloading.

[0020] 4. The present invention provides a stopper to prevent the freight trolley from slipping out of the side door guide rail during loading or unloading.

[0021] 5. The present invention is provided with a PLC controller, which can control the freight trolley to automatically enter and exit the boxcar according to the weight of the cargo on the freight trolley, which is beneficial to improving the efficiency of loading and unloading cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a cross-sectional view of the present invention;

[0023] Figure 2 A cross-sectional view of the present invention with the side door opened;

[0024] Figure 3 It is a cross-sectional view of the freight trolley of the present invention being moved out of the boxcar;

[0025] Figure 4 It is a schematic structural diagram of the front transverse guide rail, the supplementary rail and the side door guide rail of the supplementary rail rotation of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the transverse guide rail, the supplementary rail and the side door guide rail after the supplementary rail rotates according to the present invention;

[0027] Figure 6 It is a schematic diagram of the connection structure of the rail supplement, the rocker arm and the rocker arm driving cylinder of the present invention.

[0028] Figure numerals: boxcar 1; side door 2; side door guide rail 21; block 211; side door drive cylinder 22; hinge 23; mounting seat 24; transverse guide rail 3; supplementary rail 4; fixing seat 5; rocker arm 6; rocker arm drive cylinder 7; support 8; freight trolley 9; wheel 91. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] like Figure 1As shown, the present invention provides a railway boxcar moving loading and unloading mechanism, comprising a boxcar 1, side doors 2 are symmetrically arranged on two sides of the boxcar 1, the side doors 2 are smaller in area than the side of the boxcar 1, a hinge 23 is fixedly arranged on the outer bottom of the boxcar 1, the side door 2 is rotatably connected to the boxcar 1 through the hinge 23, two parallel side door guide rails 21 are arranged on the inner side of the side door 2, the side door guide rails 21 are perpendicular to the length direction of the boxcar 1 body, an opening and closing mechanism is arranged in the boxcar 1, and the opening and closing mechanism is used to control the opening and closing of the side door 2, as shown in FIG. Figure 4 As shown, a transverse guide rail 3 and a supplementary rail 4 are arranged in the boxcar 1, and the transverse guide rail 3 and the side door guide rail 21 are arranged correspondingly. The supplementary rail 4 is rotatably connected to the boxcar 1, so that the transverse guide rail 3 and the side door guide rail 21 are connected after the side door 2 is opened, thereby realizing the reciprocating transverse translation of the freight trolley 9 for loading and unloading.

[0031] In some embodiments, Figure 2 As shown, the opening and closing mechanism includes a side door driving cylinder 22 and a mounting seat 24. The mounting seat 24 is welded to the upper surface of the bottom plate in the boxcar 1. The two ends of the side door driving cylinder 22 are respectively hinged to the inner side of the side door 2 and the mounting seat 24. The opening and closing of the side door 2 can be controlled by controlling the driving cylinder.

[0032] In some embodiments, two transverse guide rails 3 are provided, and the supplementary rail 4 is arranged between the transverse guide rail 3 and the side door guide rail 21. A support 8, a fixed seat 5, a rocker arm 6, and a rocker arm driving cylinder 7 are provided in the boxcar 1. The fixed seat 5 and the support 8 are welded to the bottom plate of the boxcar 1. The cylinder body of the rocker arm driving cylinder 7 is hinged to the fixed seat 5, the piston end of the rocker arm driving cylinder 7 is hinged to one end of the rocker arm 6, and the other end of the rocker arm 6 is fixedly connected to the supplementary rail 4, and the rocker arm 6 is rotatably connected to the support 8. In the initial state, the supplementary rail 4 is perpendicular to the transverse guide rail 3. After the piston of the rocker arm driving cylinder 7 is retracted, the supplementary rail 4 is rotated to be in a straight line with the transverse guide rail 3, so that the transverse guide rail 3 and the side door guide rail 21 are connected to realize the lateral movement of the freight car 9.

[0033] In some embodiments, supplementary rails 4 are arranged at both ends of the transverse guide rails 3, that is, two symmetrical side doors 2 correspond to two transverse guide rails 3 and four supplementary rails 4, so that both ends of the transverse guide rails 3 can be connected to the side door rails 21 on the side doors 2 on both sides of the boxcar 1 through the supplementary rails 4, thereby realizing loading and unloading of goods on both sides of the boxcar 1.

[0034] In some embodiments, the supplementary rail 4 and the rocker drive cylinder 7 are both arranged between the two transverse guide rails 3, which is beneficial to saving the internal space of the boxcar 1.

[0035] In some embodiments, a stopper 211 is provided at one end of the side door guide rail 21 , and the stopper 211 is used to prevent the freight trolley 9 from slipping out of the side door guide rail 21 .

[0036] The present invention also provides a mobile loading and unloading system, including the above-mentioned railway boxcar mobile loading and unloading mechanism, a PLC controller and a freight trolley 9, the freight trolley 9 includes a weight sensor, wheels 91 and a motor, the motor is used to drive the wheels 91 to rotate, the PLC controller is connected to the motor and the weight sensor, the weight sensor is used to detect the weight of the goods, the PLC controller is used to determine whether there is goods on the freight trolley 9 according to the signal of the weight sensor, and control the opening and closing of the motor according to whether there is goods on the freight trolley 9.

[0037] In this embodiment, the PLC controller sets the loading mode and the unloading mode.

[0038] When the PLC controller is in loading mode, when the PLC controller receives the cargo weight value detected by the weight sensor for the first time and it exceeds the preset weight value, it controls the freight cart 9 to move into the boxcar 1. Subsequently, each time the PLC controller receives the cargo weight value detected by the weight sensor and it exceeds the preset weight value or the cargo weight value is zero, it controls the freight cart 9 to move once.

[0039] When the PLC controller is in unloading mode, when the PLC controller receives the cargo weight value detected by the weight sensor for the first time and it is equal to zero, it controls the freight cart 9 to move into the boxcar 1. Subsequently, each time the PLC controller receives the cargo weight value detected by the weight sensor and it exceeds the preset weight value or the cargo weight value is zero, it controls the freight cart 9 to move once.

[0040] Each time the PLC controller receives a cargo weight value detected by the weight sensor that exceeds a preset weight value or the cargo weight value is zero, it waits for a preset time before controlling the movement of the cargo trolley 9.

[0041] In some embodiments, a groove is formed on the outer edge of the wheel 91, and the supplementary rail 4, the transverse guide rail 3 and the side door guide rail 21 can be embedded in the groove.

[0042] The method for loading and unloading goods according to the mobile loading and unloading system is as follows: a preset weight value and a preset time are set in advance, and the motor speed and duration of the freight trolley 9 are set.

[0043] When loading is required, the side door 2 is opened, the PLC controller is adjusted to the loading mode, the rocker drive cylinder 7 controls the supplementary rail 4 to rotate to be in a straight line with the transverse guide rail 3, so that the transverse guide rail 3 and the side door guide rail 21 are connected, and the freight trolley 9 loaded with goods is hoisted onto the side door guide rail 21, and the goods are hoisted onto the freight trolley 9. The weight sensor transmits the detected weight value of the goods to the PLC controller. When the weight value of the goods exceeds the preset weight value, the PLC controller controls the motor of the freight trolley 9 to start and sets the start-up duration, so that the freight trolley 9 moves just to the middle of the transverse guide rail, and the motor is turned off. When the weight information received by the PLC controller is reduced to zero, the PLC controller controls the motor of the freight trolley 9 to start and sets the start-up duration, so that the freight trolley 9 moves to the initial position again;

[0044] When unloading is required, the side door 2 is opened, and the rocker drive cylinder 7 controls the supplementary rail 4 to rotate to be in a straight line with the transverse guide rail 3, so that the transverse guide rail 3 and the side door guide rail 21 are connected, and the PLC controller is adjusted to the unloading mode, and the empty freight trolley 9 is hoisted onto the side door guide rail 21. The weight sensor transmits the detected cargo weight value to the PLC controller. When the weight information received by the PLC controller is zero, the PLC controller controls the motor of the freight trolley 9 to start and sets the start-up duration, so that the freight trolley 9 moves just to the middle of the transverse guide rail, and the motor is turned off. When the cargo weight value received by the PLC controller exceeds the preset weight value, the PLC controller controls the motor of the freight trolley 9 to start and sets the start-up duration, so that the freight trolley 9 moves to the initial position again.

[0045] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A railway boxcar mobile loading and unloading mechanism, characterized in that: The invention comprises a boxcar (1), a side door (2) and an opening and closing mechanism, wherein the side door (2) is arranged on the side of the boxcar (1), a side door guide rail (21) is arranged on the inner side of the side door (2), the side door guide rail (21) is perpendicular to the length direction of the boxcar (1) body, and the opening and closing mechanism is used to control the opening and closing of the side door (2). A transverse guide rail (3) and a supplementary rail (4) are arranged inside the boxcar (1), the transverse guide rail (3) and the side door guide rail (21) are arranged correspondingly, and the supplementary rail (4) is used to connect the transverse guide rail (3) and the side door guide rail (21) after the side door (2) is opened, so that the freight trolley (9) can reciprocate and translate transversely to load and unload goods.

2. The railway boxcar moving loading and unloading mechanism according to claim 1 is characterized by: A fixed seat (5) is arranged in the boxcar (1), a rocker drive cylinder (7) is hingedly connected to the fixed seat (5), a rocker (6) is hingedly connected to the piston end of the rocker drive cylinder (7), the rocker (6) is rotatably connected to the bottom plate of the boxcar (1), the supplementary rail (4) is fixedly arranged on the rocker (6), and the rocker drive cylinder (7) controls the rotation of the supplementary rail (4) by controlling the rotation of the rocker (6), so that the supplementary rail (4) can be connected to the transverse guide rail (3) and the side door guide rail (21) after the side door (2) is opened.

3. The railway boxcar moving loading and unloading mechanism according to claim 2 is characterized in that: The side doors (2) are symmetrically arranged on both sides of the boxcar (1), and each of the side doors (2) is provided with two parallel side door guide rails (21). The two symmetrical side doors (2) correspond to two transverse guide rails (3) and four supplementary rails (4).

4. The railway boxcar moving loading and unloading mechanism according to claim 3 is characterized by: The rocker drive cylinder (7) and the supplementary rail (4) are both arranged between the two transverse guide rails (3).

5. The railway boxcar moving loading and unloading mechanism according to claim 2 is characterized in that: A support (8) is fixedly arranged in the boxcar (1), and the swing arm (6) is rotatably arranged on the support (8).

6. The railway boxcar moving loading and unloading mechanism according to any one of claims 1 to 5, characterized in that: A hinge (23) is arranged on the outside of the boxcar (1) near the bottom, and the side door (2) is rotatably connected to the boxcar (1) via the hinge (23).

7. The railway boxcar moving loading and unloading mechanism according to any one of claims 1 to 5, characterized in that: The opening and closing mechanism comprises a side door driving cylinder (22), and the two ends of the side door driving cylinder (22) are respectively hinged to the inner side of the side door (2) and the bottom plate of the boxcar (1).

8. The railway boxcar moving loading and unloading mechanism according to any one of claims 1 to 5, characterized in that: A stopper (211) is provided at one end of the side door guide rail (21), and the stopper (211) is used to prevent the freight trolley (9) from slipping out of the side door guide rail (21).

9. A mobile loading and unloading system of a railway boxcar mobile loading and unloading mechanism according to any one of claims 1 to 8, characterized in that: The invention comprises a PLC controller and a freight trolley (9), wherein the freight trolley (9) comprises a weight sensor, a wheel (91) and a motor, wherein the motor is used to drive the wheel (91) to rotate, the PLC controller is connected to the motor and the weight sensor, the weight sensor is used to detect the weight of the goods, and the PLC controller is used to control the motor to drive the freight trolley (9) according to a signal from the weight sensor.

10. A method for loading and unloading goods in a mobile loading and unloading system according to claim 9, comprising: When loading or unloading is required, the side door (2) is opened, and the swing rod driving cylinder (7) controls the auxiliary rail (4) to rotate, so that the transverse guide rail (3), the auxiliary rail (4) and the side door guide rail (21) are connected to form a complete guide rail, and the freight trolley (9) is hoisted onto the side door guide rail (21). The weight sensor transmits the detected weight value of the goods to the PLC controller. Each time the PLC controller receives that the weight value of the goods detected by the weight sensor exceeds the preset weight value or the weight value of the goods is zero, it controls the freight trolley (9) to enter or leave the boxcar (1), so as to load or unload the goods.

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