A locomotive hook opening device

Abstract

This invention relates to the field of rail transit vehicle technology, and in particular to a locomotive coupler uncoupling device. Both ends of the lifting rod are equipped with actuators, and both actuators are connected to the automatic coupler control system that drives the actuators. A button is also installed on the locomotive frame, electrically connected to the automatic coupler control system. Pressing the button controls the switching of the circuit in the automatic coupler control system, driving the two actuators to simultaneously control the lifting rod, thus achieving coupler uncoupling or locking. A single solenoid valve controls two cylinders simultaneously. The solenoid valve's air outlet pipe controls the two cylinders simultaneously through a three-way connector, ensuring unified action. A cylinder is installed on each side of the lifting rod, ensuring even force distribution and smooth rotation. After uncoupling, the button controls the solenoid valve to switch circuits, causing the lifting rod to drop quickly. Multiple uncoupling operations can be performed in a short time without waiting for the cylinders to automatically exhaust air. The rapid conversion between manual and button-based uncoupling allows for widespread application on locomotives.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit vehicles, in particular to a locomotive coupler unhooking device. Background Art

[0002] When the locomotive and the vehicle are being marshaled, the hook needs to be unhooked. Existing locomotives are equipped with a hook unhooking device on the locomotive end plate, which is mainly composed of a lifting rod and a lifting rod seat. When unhooking, the lifting rod is rotated manually, and the lifting rod is lifted, driving the locking pin in the hook to move upward, and the hook is unhooked. After the applied force disappears, the lifting rod is lowered under the action of gravity and returns to the ready state. However, the manual unhooking method greatly increases the workload of the staff. Therefore, a device that can unhook manually and automatically by pressing a button is urgently needed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a locomotive coupler unhooking device which can quickly convert manual unhooking and button unhooking by controlling two cylinders to act simultaneously with one solenoid valve, and controlling the rotation of lifting rods with cylinders on both sides.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a locomotive coupler unhooking device, comprising a coupler, a lifting rod and a lifting rod seat, the coupler is installed on the locomotive frame, the lifting rod passes through the coupler, and both ends of the lifting rod are installed on the locomotive frame through the lifting rod seats, both ends of the lifting rod are installed with actuators, and the two actuators are connected to the coupler automatic control system that drives the actuators to work; a button is also installed on the locomotive frame, the button is electrically connected to the coupler automatic control system, and pressing the button controls the switching of the path in the coupler automatic control system, drives the two actuators to control the lifting rod at the same time, and realizes the unhooking or locking of the coupler.

[0005] Furthermore, the automatic coupler control system includes a solenoid valve, a hook locking pipeline and a hook opening pipeline, the solenoid valve is provided with a compressed air inlet, a first air outlet and a second air outlet, the compressed air inlet is connected to the main air cylinder of the locomotive, and is used to receive compressed air from the main air cylinder of the locomotive, the cylinder in the actuator has two pipeline interfaces, the second air outlet is connected to one of the pipeline interfaces of the cylinder in the actuator through the hook locking pipeline, and the first air outlet is connected to the other pipeline interface of the cylinder in the actuator through the hook opening pipeline;

[0006] When the coupler is locked, the compressed air inlet hole is connected to the second air outlet hole, the piston rod end of the cylinder in the actuator is inflated, the piston of the cylinder in the actuator is retracted, and the lifting rod falls;

[0007] When the coupler is unhooked, the compressed air inlet hole is connected to the first air outlet hole, the non-piston rod end of the cylinder in the actuator is inflated, the piston of the cylinder in the actuator extends, and the lifting rod rotates and rises to realize unhooking.

[0008] Furthermore, the actuator includes a cylinder, a mounting seat, a fisheye joint and a connecting plate, one end of the cylinder is mounted on the locomotive frame through the mounting seat, the other end of the cylinder is installed with a fisheye joint, one end of the connecting plate is installed on the lifting rod, and the other end of the connecting plate is hinged to the fisheye joint.

[0009] Furthermore, the solenoid valve and the button are connected to the locomotive power pack, and a series circuit is formed between the solenoid valve, the button and the locomotive power pack.

[0010] Furthermore, the solenoid valve is a two-position five-way pneumatic solenoid valve.

[0011] Furthermore, a pull-connection plug is provided between the compressed air inlet and the main air cylinder of the locomotive to cut off the connection between the hook opening device and the main air cylinder of the locomotive.

[0012] Furthermore, the fisheye joint and the connecting plate are hinged by a folding pin to achieve rapid conversion between manual hook opening and button hook opening.

[0013] Furthermore, an anti-loss hole is provided on the folding pin shaft for hanging on the lifting rod to prevent loss.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention has a novel structure, is easy to install and use, and can be widely promoted on locomotives;

[0015] 2. One solenoid valve controls two cylinders to move at the same time. The outlet pipe of the solenoid valve controls the two cylinders to move at the same time through a three-way joint, with unified action and simple structure.

[0016] 3. Double-sided cylinders control the rotation of the lifting rod. A cylinder is set on each side of the lifting rod to make the lifting rod evenly stressed and rotate smoothly;

[0017] 4. Quick conversion between manual hook opening and button hook opening. The hinge between the fisheye joint and the connecting plate adopts a folding pin. When the new hook opening device fails or the locomotive is not started and manual hook opening is required, the folding pin is removed. At this time, the lifting rod can be manually rotated to open the hook, realizing quick conversion between manual hook opening and button hook opening. The tail of the folding pin has a hole that can be hung on the lifting rod to prevent loss.

[0018] 5. Double-acting cylinder controls the lifting rod. The double-acting cylinder is used. After the hook is opened, the button controls the solenoid valve to switch the passage, so that the lifting rod falls quickly. Multiple hook opening operations can be performed in a short time without waiting for the cylinder to automatically exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 is a top view of the present invention;

[0022] Figure 3 It is a partial enlarged view of A of the present invention;

[0023] Figure 4 It is a left side view of the present invention;

[0024] Figure 5 It is the electrical circuit diagram of the present invention;

[0025] Figure 6 This is a diagram showing the initial position of the folding pin in the manual hook opening of Example 2 of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of removing the folding pin in the manual hook opening of Embodiment 2 of the present invention;

[0027] In the figure: 1. coupler, 2. lifting rod, 3. lifting rod seat, 4. connecting plate, 5. fisheye joint, 6. folding pin, 7. cylinder, 8. mounting seat, 9. pull-connecting plug, 10. solenoid valve, 11. button, 12. compressed air inlet hole, 13. anti-loss hole, 14. first exhaust hole, 15. second exhaust hole, 16. first air outlet hole, 17. second air outlet hole, 19. locomotive frame, 20. hook locking pipeline, 21. hook opening pipeline. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] Example 1: Button Unhook

[0030] like Figures 1 to 5 A locomotive coupler opening device shown in the figure comprises a coupler 1, a lifting rod 2 and a lifting rod seat 3, wherein the coupler 1 is mounted on a locomotive frame 19, the lifting rod 2 passes through the coupler 1, and both ends of the lifting rod 2 are mounted on the locomotive frame 19 through the lifting rod seats 3, and both ends of the lifting rod 2 are mounted with actuators, and both actuators are connected to a coupler automatic control system that drives the actuators to work;

[0031] A button 11 is also installed on the locomotive frame 19. The button 11 is electrically connected to the automatic coupler control system. Pressing the button 11 controls the path switching in the automatic coupler control system, drives the two actuators to control the lifting rod 2 at the same time, and realizes the opening or locking of the coupler 1.

[0032] like Figures 2-3As shown, the coupler automatic control system includes a solenoid valve 10, a hook locking pipeline 20 and a hook opening pipeline 21. The button 11 controls the solenoid valve 11, and the solenoid valve 11 controls the air path to realize the extension or retraction of the piston rod of the cylinder 7, thereby controlling the lifting or lowering of the lifting rod 2. The solenoid valve 10 is a two-position five-way pneumatic solenoid valve. The solenoid valve 10 has a compressed air inlet 12, a first air outlet 16, a second air outlet 17, a first exhaust hole 14 and a second exhaust hole 15. The compressed air inlet 12 is connected to the main air cylinder of the locomotive to receive the compressed air of the main air cylinder of the locomotive. In addition, a pull-connection plug 9 is provided between the compressed air inlet 12 and the main air cylinder of the locomotive to cut off the connection between the hook opening device and the main air cylinder of the locomotive.

[0033] The cylinder 7 in the actuator has two pipeline interfaces. Each time the button 11 is pressed, the solenoid valve 10 switches the pipeline circuit, which are respectively called position A and position B. That is, position A is when the second air outlet 17 is connected to one of the pipeline interfaces of the cylinder 7 in the actuator through a locking hook pipeline 20;

[0034] Position B is that the first air outlet 16 is connected to another pipeline interface of the cylinder 7 in the actuator through an open hook pipeline 21;

[0035] When the coupler 1 is locked, the compressed air inlet 12 is connected to the second air outlet 17, the piston rod end of the cylinder 7 in the actuator is inflated, the piston of the cylinder 7 in the actuator is retracted, and the lifting rod 2 falls;

[0036] When the coupler 1 is unhooked, the compressed air inlet 12 is connected to the first air outlet 16, the non-piston rod end of the cylinder 7 in the actuator is inflated, the piston of the cylinder 7 in the actuator extends, and the lifting rod 2 rotates and rises to realize unhooking.

[0037] The actuator includes a cylinder 7, a mounting seat 8, a fisheye joint 5 and a connecting plate 4. One end of the cylinder 7 is mounted on the locomotive frame 19 through the mounting seat 8, and the other end of the cylinder 7 is installed with a fisheye joint 5. One end of the connecting plate 4 is installed on the lifting rod 2, and the other end of the connecting plate 4 is hinged to the fisheye joint 5.

[0038] At the same time, the solenoid valve 10 and the button 11 are connected to the locomotive power pack, and a series circuit is formed between the solenoid valve 10, the button 11 and the locomotive power pack.

[0039] Working process:

[0040] Initially, the coupler 1 is in a ready state (i.e., a locked hook state);

[0041] When the solenoid valve 10 is in position B, the coupler 1 is in the unhooked state: press the button 11, and the compressed air in the locomotive main air cylinder rushes into the non-piston rod end of the cylinder 7 through the compressed air inlet hole 2, the first air outlet hole 16 and the unhooking pipeline 21. The non-piston rod end of the cylinder 7 is inflated, and the piston of the cylinder 7 extends out. Through two hinges [i.e., the hinge between the fisheye joint 5 and the connecting plate 4, and the hinge between the lifting rod 2 and the locking pin of the coupler 1], the linear motion of the piston of the cylinder 7 is converted into the rotational motion of the lifting rod 2, and the lifting rod 2 converts the rotational motion at this place into the rising motion of the locking pin of the coupler 1. At this time, the lifting rod 2 is lifted, so that the coupler is unhooked and the locomotives are separated. At the same time, the piston rod end of the cylinder 7 is connected to the atmosphere through the second exhaust hole 15.

[0042] When the solenoid valve 10 is in position A, the coupler 1 is in the locked hook state: press the button 11 again, the compressed air in the locomotive main air cylinder rushes into the piston rod end of the cylinder 7 through the compressed air inlet hole 2, the second air outlet hole 17 and the locking hook pipeline 20, the piston of the cylinder 7 is retracted, the lifting rod 2 falls, the coupler 1 is locked, the locomotives are combined, and it is restored to the ready state. At the same time, the non-piston rod end of the cylinder 7 is connected to the atmosphere through the first exhaust hole 14.

[0043] Example 2: Manual hook opening

[0044] The difference from Example 1 is that: Figures 6-7 As shown, the fisheye joint 5 and the connecting plate 4 are hinged by a folding pin 6. When the button unhooking fails in Example 1 or the locomotive is not started and manual unhooking is required, the folding pin 6 is removed. At this time, the lifting rod 2 can be manually rotated to complete the unhooking, thereby realizing a quick conversion between manual unhooking and button unhooking.

[0045] At the same time, an anti-lost hole 13 is provided on the folding pin 6, which can be hung on the lifting rod 2 to prevent loss.

[0046] The above description only describes the specific implementation mode of the present invention. Various examples do not limit the essential content of the present invention. After reading the description, ordinary technicians in the relevant technical field can modify or deform the specific implementation modes described above without departing from the essence and scope of the invention.

Claims

1. A locomotive coupler opening device, comprising a coupler (1), a lifting rod (2) and a lifting rod seat (3), wherein the coupler (1) is mounted on a locomotive frame (19), the lifting rod (2) passes through the coupler (1), and both ends of the lifting rod (2) are mounted on the locomotive frame (19) via the lifting rod seat (3), characterized in that: Both ends of the lifting rod (2) are equipped with actuators, and both actuators are connected to the automatic coupler control system that drives the actuators to work; A button (11) is also installed on the locomotive frame (19). The button (11) is electrically connected to the automatic coupler control system. When the button (11) is pressed, the switching of the passage in the automatic coupler control system is controlled, and the two actuators are driven to simultaneously control the lifting rod (2), thereby realizing the opening or locking of the coupler (1). The automatic coupler control system comprises a solenoid valve (10), a hook locking pipeline (20) and a hook opening pipeline (21); the solenoid valve (10) is provided with a compressed air inlet (12), a first air outlet (16) and a second air outlet (17); the compressed air inlet (12) is connected to the main air cylinder of the locomotive and is used to receive compressed air from the main air cylinder of the locomotive; the cylinder (7) in the actuator component has two pipeline interfaces; the second air outlet (17) is connected to one of the pipeline interfaces of the cylinder (7) in the actuator component via the hook locking pipeline (20); the first air outlet (16) is connected to the other pipeline interface of the cylinder (7) in the actuator component via the hook opening pipeline (21); When the coupler (1) is locked, the compressed air inlet hole (12) is connected to the second air outlet hole (17), the piston rod end of the cylinder (7) in the actuator is inflated, the piston of the cylinder (7) in the actuator is retracted, and the lifting rod (2) falls; When the coupler (1) is unhooked, the compressed air inlet hole (12) is connected to the first air outlet hole (16), the non-piston rod end of the cylinder (7) in the actuator is inflated, the piston of the cylinder (7) in the actuator extends, and the lifting rod (2) rotates and rises to realize unhooking; The actuator comprises a cylinder (7), a mounting seat (8), a fisheye joint (5) and a connecting plate (4); one end of the cylinder (7) is mounted on a locomotive frame (19) via the mounting seat (8); the other end of the cylinder (7) is mounted with a fisheye joint (5); one end of the connecting plate (4) is mounted on a lifting rod (2); the other end of the connecting plate (4) is hinged to the fisheye joint (5); the fisheye joint (5) and the connecting plate (4) are hinged via a folding pin (6) to achieve a quick switch between manual hook opening and button hook opening.

2. A locomotive coupler unhooking device as claimed in claim 1, characterized in that: The solenoid valve (10) and the button (11) are both connected to a locomotive power supply group, and a series circuit is formed between the solenoid valve (10), the button (11) and the locomotive power supply group.

3. A locomotive coupler unhooking device as claimed in claim 2, characterized in that: The solenoid valve (10) is a two-position five-way pneumatic solenoid valve.

4. A locomotive coupler unhooking device as claimed in claim 3, characterized in that: A pull-connection plug door (9) is provided between the compressed air inlet hole (12) and the main air cylinder of the locomotive, for cutting off the connection between the hook opening device and the main air cylinder of the locomotive.

5. A locomotive coupler unhooking device as claimed in claim 4, characterized in that: The folding pin shaft (6) is provided with an anti-loss hole (13) for being hung on the lifting rod (2) to prevent loss.

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