Tensioning counterweight device of port traction vehicle system

Abstract

The utility model discloses a tensioning counterweight device of a port traction vehicle system, which comprises a bracket component, a top pulley component, a movable pulley component, a counterweight component and a steel wire rope, and further comprises a plurality of safety components arranged along the height direction of the bracket component, each safety component comprises a rotating support leg, a rotating shaft, an electromagnet and a photoelectric sensor, the rotating support leg is rotationally connected into the first channel steel through the rotating shaft and comprises a support part and an adsorption part, and one end, away from the adsorption part, of the support part can extend out of the first channel steel; the electromagnet is mounted on the side, away from the support part, of the adsorption part; the photoelectric sensor is installed on the support component, and a trigger plate matched with the photoelectric sensor is fixed to the balance weight component. According to the utility model, the fallen counterweight component can be received, equipment damage or casualties caused by accidental breakage of the steel wire rope can be effectively prevented, and the safety is higher.

Description

Technical Field

[0001] This utility model relates to the field of towing system technology, and in particular to a tensioning counterweight device for a port towing system. Background Technology

[0002] Port traction systems are a common cargo transportation and scheduling system used in ports. During loading at port loading stations, the traction of the wagons primarily relies on an independent winch traction system. This system mainly consists of a drive unit, rear counterweight, front counterweight, main wire rope system, and jacks. Power is provided by the drive unit. The wire rope is wound around the friction wheel of the gearbox, and both ends of the wire rope are connected to the jacks. The drive unit's motor rotates forward and backward, driving the jacks forward and backward. The rear and front counterweights ensure the wire rope remains taut at all times.

[0003] The existing utility model patent with publication number CN214141351U discloses a front traction rope counterweight tensioning mechanism for a winch traction system, including a frame and pulleys. The frame has left and right support legs, and a transverse connecting frame is set at the top of the left and right support legs. The two ends of the transverse connecting frame are respectively connected and fixed to the top of the left and right support legs. Fixed pulleys are respectively set at corresponding positions on the left and right support legs of the transverse connecting frame, and a movable pulley is set between the two fixed pulleys. Tensioning pulleys that can run along the support legs are set on both the left and right support legs. The two ends of the wire rope are respectively connected to the tensioning pulleys on the left and right support legs, and the middle of the wire rope is connected to the movable pulley. The axle of the movable pulley is connected to the counterweight.

[0004] Regarding the aforementioned prior art, the inventor believes that during long-term use of existing tensioning counterweight devices, the wire rope will inevitably wear down. If the wire rope connecting the counterweight component breaks during operation, the counterweight component will fall directly from a height, which will not only damage the device but may also lead to personal injury accidents, posing a safety hazard. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a tensioning counterweight device for a port traction system, which includes safety components designed for the corresponding counterweight parts. This effectively prevents equipment damage or personal injury caused by accidental breakage of the wire rope, resulting in higher safety.

[0006] To achieve the above objectives, this utility model provides a tensioning counterweight device for a port trolley system, including a support component, a top pulley component, a movable pulley component, a counterweight component, and a steel wire rope. The movable pulley component and the counterweight component are located on opposite sides of the support component, the top pulley component is installed at the top of the support component, one end of the steel wire rope is connected to the counterweight component, and the other end passes through the top pulley component and is connected to the movable pulley component. It also includes several safety components arranged along the height direction of the support component.

[0007] Each of the safety components includes a rotating leg, a rotating shaft, an electromagnet, and a photoelectric sensor. A first channel steel is formed on the outer wall of the support component. The rotating leg is rotatably connected to the first channel steel via the rotating shaft. The rotating leg includes a support portion and an adsorption portion corresponding to the electromagnet. The rotating shaft passes through the connection between the support portion and the adsorption portion. The support portion is located opposite the top of the adsorption portion, and the end of the support portion away from the adsorption portion extends out of the first channel steel. The center of gravity of the rotating leg is located on the side of the rotating shaft away from the support component. The end of the adsorption portion away from the support portion abuts against the inner wall of the first channel steel. The electromagnet is installed on the side of the adsorption portion away from the support component. The photoelectric sensor is mounted on the support component, and a trigger plate adapted to the photoelectric sensor is fixed on the counterweight component.

[0008] Furthermore, the bottom surface of the support portion extending out of the first channel steel forms an inwardly recessed guide arc surface.

[0009] Furthermore, an auxiliary support is provided on the side of the counterweight component away from the support component. Several safety components are also arranged on the side wall of the auxiliary support near the counterweight component along its own height direction. The safety components on the auxiliary support and the support component correspond to each other in the height direction.

[0010] Furthermore, the counterweight component includes a counterweight box, a lifting lug, and a guide member. The lifting lug is welded and fixed to the top of the counterweight box, and the wire rope is connected to the lifting lug. The guide member includes a mounting plate and a guide wheel. The mounting plate is fixed to the side wall of the counterweight box near the support component, and the guide wheel is rotatably connected to the mounting plate. A second channel steel is formed on the side wall of the support component near the counterweight component. The second channel steel extends along the height direction of the support component, and the guide wheel is located in the groove of the second channel steel.

[0011] Furthermore, the top pulley component includes an ear seat plate and two fixed pulleys. The two fixed pulleys are rotatably connected to both ends of the ear seat plate. The end of the wire rope away from the counterweight component passes around the top of the outer circumference of the two fixed pulleys and is then connected to the movable pulley component.

[0012] The beneficial effects of this utility model are:

[0013] This utility model discloses a tensioning counterweight device for a port traction system. By designing a safety component corresponding to the counterweight component, it can effectively support the counterweight component during a short-distance drop when the wire rope breaks accidentally due to wear. This prevents equipment damage or personal injury caused by the counterweight component falling from a height, thus enhancing safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2This is a side view of the present invention, illustrating the counterweight component and the safety component.

[0016] Figure 3 This is a top view of the top pulley component in this utility model.

[0017] Figure 4 This is a structural schematic diagram of the counterweight component in this utility model.

[0018] Figure 5 This is a partial structural diagram illustrating the rotating support leg in this utility model.

[0019] In the diagram: 1. Support component; 11. First channel steel; 12. Second channel steel; 2. Top pulley component; 21. Ear seat plate; 22. Fixed pulley; 3. Movable pulley component; 4. Counterweight component; 41. Counterweight box; 42. Lifting lug; 43. Guide component; 431. Guide wheel; 432. Mounting plate; 5. Steel wire rope; 6. Safety component; 61. Rotating support leg; 611. Support part; 612. Adsorption part; 613. Guide arc surface; 62. Rotating shaft; 63. Electromagnet; 64. Photoelectric sensor; 641. Infrared transmitter; 642. Infrared receiver; 65. Trigger plate; 7. Auxiliary support; 8. Support. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] This utility model discloses a tensioning counterweight device for a port traction system.

[0022] Refer to Figure 1 and Figure 2 A tensioning counterweight device for a port trolley system includes a support component 1, a top pulley component 2, a movable pulley component 3, a counterweight component 4, a steel wire rope 5, and several mounting components. The movable pulley component 3 and the counterweight component 4 are located on opposite sides of the support component 1. The movable pulley component 3 is connected to an iron yoke or a winch via the steel wire rope 5. The top pulley component 2 is mounted on the top of the support component 1. The top pulley component 2 includes a lug plate 21 and two fixed pulleys 22. The two fixed pulleys 22 are rotatably connected to the two ends of the lug plate 21. The end of the steel wire rope 5 away from the counterweight component 4 passes around the top of the outer circumference of the two fixed pulleys 22 and is then connected to the movable pulley assembly.

[0023] Reference Figures 2 to 4The counterweight component 4 includes a counterweight housing 41, lifting lugs 42, and guide members 43. The lifting lugs 42 are welded and fixed to the top of the counterweight housing 41, and the wire rope 5 is connected to the lifting lugs 42. Two guide members 43 are provided, each including a mounting plate 432 and a guide wheel 431. The mounting plate 432 is fixed to the side wall of the counterweight housing 41 near the support component 1, and the guide wheel 431 is rotatably connected to the mounting plate 432. Two second channel steels 12 are formed on the side wall of the support component 1 near the counterweight component 4, extending along the height direction of the support component 1. The guide wheel 431 is located within the groove of the second channel steel 12. The guide members 43 provide a guiding effect for the vertical movement of the counterweight component 4, making the lifting process more stable.

[0024] Reference Figures 2 to 5 Each safety component 6 includes a rotating leg 61, a rotating shaft 62, an electromagnet 63, and a photoelectric sensor 64. A first channel steel 11 is formed on the outer wall of the support component 1, extending along the height direction of the support component 1. The rotating leg 61 is rotatably connected to the first channel steel 11 via the rotating shaft 62. The rotating leg 61 includes a support portion 611 and an adsorption portion 612 corresponding to the electromagnet 63. The rotating shaft 62 passes through the connection between the support portion 611 and the adsorption portion 612. The support portion 61 is located at the top of the adsorption portion 612, and the end of the support portion 611 away from the adsorption portion 612 can extend out of the first channel steel 11. The center of gravity of the rotating leg 61 is located on the side of the rotating shaft 62 away from the support component 1. Therefore, without external force, the rotating leg 61 can rotate freely. Under its own weight, the support part 61 of the rotating leg 61 deflects away from the bracket component 1. When one end of the support part 611 extends out of the first channel steel 11, the end of the adsorption part 612 away from the support part 611 abuts against the inner wall of the first channel steel 11, thereby limiting the rotation of the rotating leg 61. This allows the rotating bracket to play a supporting role. Then, when the steel wire rope 5 of the counterweight component 4 breaks, the counterweight component 4 falls to the nearest rotating leg 61, preventing equipment damage and accidents.

[0025] Reference Figures 2 to 5An electromagnet 63 is installed on the side of the adsorption part 612 away from the support part 611. The photoelectric sensor 64 includes an infrared transmitter 641 and an infrared receiver 642, both of which are mounted on the bracket part 1. A trigger plate 65 adapted to the photoelectric sensor 64 is fixed to the bottom of the counterweight part 4. The counterweight part 4 moves up and down, and the trigger plate 65 passes between the infrared receiver 642 and the infrared transmitter 641. To avoid interference from the rotating support leg 61 on the lowering movement of the counterweight part 4, a trigger plate 65 adapted to the photoelectric sensor 64 is fixed on the counterweight part 4. When the counterweight part 4 is lowered, the photoelectric sensor 64 detects the trigger plate 65 and controls the electromagnet 63 to attract the adsorption part 612 via the PLC control device. The support part 611 of the rotating support leg 61 deflects inward toward the first channel steel 11, thereby avoiding interference.

[0026] Reference Figures 2 to 5 To distinguish between the breakage of the steel wire rope 5 and the normal descent of the counterweight component 4 during the lowering process, this embodiment differentiates them by the duration of the photoelectric sensor signal blocking by the trigger plate 65. Under normal working conditions, the lowering speed of the counterweight component 4 is relatively slow, resulting in a longer duration of infrared signal blocking by the trigger plate 65. Conversely, when the steel wire rope 5 breaks, the counterweight component 4 falls quickly. Therefore, in this embodiment, the length of the trigger plate 65 is set to 20cm, and the judgment time is 0.5s. When the infrared signal transmission is blocked by the trigger plate 65 for more than 0.5s, the electromagnet 63 activates the attraction and adsorption part 612, causing the support part 611 to retract into the first channel steel 11, allowing the counterweight component 4 to be lowered normally. When the infrared transmission is blocked by the trigger plate 65 for less than or equal to 0.5s, the electromagnet 63 does not activate, and the support part 611 extends out of the first channel steel 11 under its own weight, supporting the counterweight component 4.

[0027] To ensure that the support part 611 does not interfere with the movement of the counterweight component 4 during its upward movement, the bottom surface of the support part 611 extending from the first channel steel 11 forms an inwardly recessed guide arc surface 613. When the counterweight component 4 moves upward, the guide arc surface 613 drives the support part 611 to deflect inward into the first channel steel 11 without causing interference. To prevent the trigger plate 65 from supporting the counterweight component 4 when it is completely lowered to the ground, a support 8 is fixed on the bottom surface directly below the counterweight component 4 to support it. The height of the support 8 must be greater than the length of the trigger plate 65.

[0028] Reference Figure 1An auxiliary support 7 is provided on the side of the counterweight component 4 away from the support component 1. Several safety components 6 are also arranged along the height direction of the auxiliary support 7 on its side wall near the counterweight component 4. The safety components 6 on the auxiliary support 7 correspond to those on the support component 1 in the height direction. Single-sided support is insufficient to maintain the balance of the counterweight component 4; therefore, the auxiliary support 7 is provided, and safety components 6 are installed on the auxiliary support 7 to provide safety support at four points on the bottom corners of the counterweight component 4, resulting in a more stable and reliable support effect.

[0029] The working principle of the tensioning counterweight device of the port trolley system of this utility model is as follows: During normal lifting and tensioning operation, the counterweight component 4 abuts against the guide arc surface 613 during its ascent, driving the support part 611 to deflect inward into the first channel steel 11. The rotating support leg 61 does not interfere with the ascent process of the counterweight component 4. At this time, the electromagnet 63 is always de-energized. After the counterweight component 4 passes the rotating support leg 61, the support part 611 of the rotating support leg 61 rotates outward from the first channel steel 11 under its own weight. During the normal descent of the counterweight component 4, the trigger plate 65 first triggers the photoelectric sensor 64. After the trigger plate 65 blocks the infrared signal transmission time for more than 0.5s, the electromagnet 63 is energized and starts, attracting the adsorption part 612, causing the support part 611 to retract into the inside of the first channel steel 11, allowing the counterweight component 4 to be lowered normally. When the wire rope 5 breaks, the counterweight 4 falls freely at a high speed. When the trigger plate 65 blocks the infrared transmission for less than or equal to 0.5 seconds, the electromagnet 63 is de-energized and supports the counterweight 4. This provides safety protection for the counterweight 4, preventing the wire rope 5 from breaking accidentally due to long-term wear, which could cause equipment damage or personal injury. This results in higher safety.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tensioning counterweight device for a port trolley system, comprising a support component (1), a top pulley component (2), a movable pulley component (3), a counterweight component (4), and a steel wire rope (5), wherein the movable pulley component (3) and the counterweight component (4) are respectively located on both sides of the support component (1), the top pulley component (2) is installed at the top of the support component (1), one end of the steel wire rope (5) is connected to the counterweight component (4), and the other end passes through the top pulley component (2) and is connected to the movable pulley component (3); characterized in that: It also includes several safety components (6) arranged along the height direction of the support component (1); Each of the safety components (6) includes a rotating leg (61), a rotating shaft (62), an electromagnet (63), and a photoelectric sensor (64). The outer wall of the support component (1) is formed with a first channel steel (11). The rotating leg (61) is rotatably connected to the first channel steel (11) via the rotating shaft (62). The rotating leg (61) includes a support part (611) and an adsorption part (612) corresponding to the electromagnet (63). The rotating shaft (62) passes through the connection between the support part (611) and the adsorption part (612). The support part (611) is located opposite the top of the adsorption part (612). At one end, the support part (611) away from the adsorption part (612) can extend out of the first channel steel (11); the center of gravity of the rotating support (61) is located on the side of the axis of the rotating shaft (62) away from the bracket component (1); the end of the adsorption part (612) away from the support part (611) abuts against the inner wall of the first channel steel (11); the electromagnet (63) is installed on the side of the adsorption part (612) away from the support part (611); the photoelectric sensor (64) is installed on the bracket component (1); and a trigger plate (65) adapted to the photoelectric sensor (64) is fixed on the counterweight component (4).

2. The tensioning counterweight device for a port trolley system according to claim 1, characterized in that: The support part (611) extends out of the bottom surface of the first channel steel (11) and forms an inwardly recessed guide arc surface (613).

3. The tensioning counterweight device for a port trolley system according to claim 2, characterized in that: An auxiliary support (7) is provided on the side of the counterweight component (4) away from the support component (1). Several safety components (6) are also arranged on the side wall of the auxiliary support (7) close to the counterweight component (4) along its own height direction. The auxiliary support (7) and the safety components (6) on the support component (1) are corresponding in the height direction.

4. A tensioning counterweight device for a port trolley system according to any one of claims 1-3, characterized in that: The counterweight component (4) includes a counterweight box (41), a lifting lug (42), and a guide (43). The lifting lug (42) is welded and fixed to the top of the counterweight box (41), and the wire rope (5) is connected to the lifting lug (42). The guide (43) includes a mounting plate (432) and a guide wheel (431). The mounting plate (432) is fixed to the side wall of the counterweight box (41) near the support component (1), and the guide wheel (431) is rotatably connected to the mounting plate (432). A second channel steel (12) is formed on the side wall of the support component (1) near the counterweight component (4). The second channel steel (12) extends along the height direction of the support component (1), and the guide wheel (431) is located in the groove of the second channel steel (12).

5. The tensioning counterweight device for a port trolley system according to claim 4, characterized in that: The top pulley component (2) includes a lug plate (21) and two fixed pulleys (22). The two fixed pulleys (22) are rotatably connected to both ends of the lug plate (21). The end of the wire rope (5) away from the counterweight component (4) passes around the top of the outer circumference of the two fixed pulleys (22) and is connected to the movable pulley component (3).

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