Locking device for walking mechanism of port crane

Abstract

The utility model discloses a locking device for a walking mechanism of a port crane, and relates to the technical field of cranes. The device comprises a bracket, wherein a locking rod is fixed on the upper surface of the bracket; sliding grooves are formed in the upper surfaces of the locking rods, first positioning plates are fixed to the ends, away from the sliding grooves, of the locking rods, limiting blocks are fixed to one sides of the first positioning plates, and second positioning plates are fixed to one sides of the limiting blocks. Adjusting plates are slidably connected to the upper surfaces of the locking rods, and connecting blocks are fixed to the tops of the adjusting plates; pulleys are rotationally connected to the surfaces of the adjusting plates and are in rolling connection with the sliding grooves. Through the action of the limiting block, matching between the limiting block and the second positioning plate and locking of the clamping rod and the positioning hole, double locking of the cargo carrying box hopper is achieved, the locking efficiency during emergency braking is greatly improved, large-amplitude sliding of the cargo carrying box hopper caused by inertia is effectively prevented, and the service life of the cargo carrying box hopper is prolonged. And the safety of goods and the overall stability of the crane are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, and in particular relates to a locking device for the traveling mechanism of a port crane. Background Technology

[0002] Port cranes are key equipment in modern port logistics and cargo handling operations, primarily responsible for lifting, loading, unloading, and transporting goods. During operation, the traveling mechanism is crucial for ensuring the crane's smooth movement on the tracks. The traveling mechanism typically consists of a drive unit, transmission unit, wheel sets, and braking system, and its performance directly impacts the crane's efficiency, safety, and stability.

[0003] During the operation of port cranes, due to the complex and variable working environment, the cranes need to frequently start, stop, and turn. Especially under conditions of strong winds, heavy loads, or uneven tracks, the stability of the traveling mechanism becomes particularly important. When the crane is not in operation, the traveling mechanism requires a reliable locking device to prevent accidental movement. Existing locking devices are complex in structure, inconvenient to operate, and prone to failure in harsh environments, resulting in poor locking performance.

[0004] To address these issues, we provide a locking device for the traveling mechanism of a port crane. Utility Model Content

[0005] The purpose of this utility model is to provide a locking device for the traveling mechanism of a port crane. Through the action of the limiting block, the cooperation between the limiting block and the second positioning plate, and the locking of the locking rod and the positioning hole, a double locking of the cargo container is achieved, which greatly improves the locking efficiency during emergency braking, effectively prevents the cargo container from sliding significantly due to inertia, ensures the safety of the goods and the overall stability of the crane, and solves the problems of existing locking devices being complex in structure, inconvenient to operate, and prone to failure in harsh environments, resulting in poor locking effect.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a locking device for the traveling mechanism of a port crane, including a bracket, and a locking rod is fixed on the upper surface of the bracket;

[0007] The upper surface of the locking rod has a sliding groove, and a first positioning plate is fixed to the end of the locking rod away from the sliding groove. A limit block is fixed to one side of the first positioning plate, and a second positioning plate is fixed to one side of the limit block.

[0008] An adjusting plate is slidably connected to the upper surface of the locking rod, and a connecting block is fixed to the top of the adjusting plate;

[0009] The surface of the adjusting plate is rotatably connected to a pulley, and the pulley is rollingly connected to the slide groove;

[0010] The surface of the adjusting plate has an adjusting groove, and an adjusting rod passes through the adjusting groove. A support rod is fixed between two adjusting rods, and a locking wheel is rotatably connected to the outside of the support rod.

[0011] A connecting plate is fixed to the end of the adjusting rod away from the support rod, and a first spring is fixed between the connecting plate and the adjusting plate.

[0012] The present invention is further configured such that: a limiting rod is fixed to the inner wall of the adjusting groove, and a limiting groove is opened on one side of the adjusting rod;

[0013] The limiting rod passes through the limiting groove.

[0014] The present invention is further configured such that: the limiting block has an arc-shaped structure, and the distance between the limiting block and the second positioning plate is equal to the diameter of the locking wheel.

[0015] The present invention is further configured such that: a positioning hole is formed on the surface of the adjusting rod, and a guide groove is formed on one side of the positioning hole.

[0016] The present invention is further configured such that fasteners are fixed on both sides of the locking rod;

[0017] The fastener includes a fastening housing, which is fixed inside the locking rod.

[0018] The present invention is further configured such that: a fixing plate is fixed inside the fastening shell, and telescopic rods are fixed on both sides of the fixing plate;

[0019] A second spring is sleeved on the outer side of the telescopic rod;

[0020] A movable plate is fixed to the side of the telescopic rod away from the fixed plate.

[0021] The present invention is further configured such that: one end of the second spring is fixedly connected to the fixed plate, and the other end of the second spring is fixedly connected to the movable plate;

[0022] A locking rod is fixed to one side of the movable plate, and one end of the locking rod has a hemispherical structure.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model achieves double locking of the cargo container by using the function of the limiting block, the cooperation between the limiting block and the second positioning plate, and the locking of the locking rod and the positioning hole. This greatly improves the locking efficiency during emergency braking, effectively prevents the cargo container from sliding significantly due to inertia, and ensures the safety of the goods and the overall stability of the crane.

[0025] 2. Through the action of the fastener, the movable plate inside the fastener moves towards the adjusting rod under the elastic force of the second spring, so that the locking rod extends and accurately locks into the positioning hole on the surface of the adjusting rod, further enhancing the locking effect on the connecting block, thereby effectively fixing the cargo box and preventing it from continuing to slide due to inertia. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of a locking device for the traveling mechanism of a port crane according to the present invention.

[0028] Figure 2 This is a side view structural diagram of the present invention.

[0029] Figure 3 This is a top-view structural diagram of the present invention.

[0030] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of point A in the middle.

[0031] Figure 5 This is a schematic diagram of the internal structure of the fastener of this utility model.

[0032] Figure 6 This is a schematic diagram of the adjustment plate structure of this utility model.

[0033] Figure 7 This is a schematic diagram of the adjusting rod structure of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1-Bracket, 2-Locking rod, 3-Slide groove, 4-First positioning plate, 5-Limiting block, 6-Second positioning plate, 7-Adjusting plate, 8-Connecting block, 9-Pulley, 10-Adjusting groove, 11-Adjusting rod, 12-Support rod, 13-Locking wheel, 14-Connecting plate, 15-First spring, 16-Limiting rod, 17-Limiting groove, 18-Positioning hole, 19-Guide groove, 20-Fastener, 21-Fastening shell, 22-Fixing plate, 23-Telescopic rod, 24-Second spring, 25-Moving plate, 26-Clamping rod. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0038] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Specific Implementation

[0040] Please see Figure 1-7 This utility model is a locking device for the traveling mechanism of a port crane, including a bracket 1, a locking rod 2 fixed on the upper surface of the bracket 1; a sliding groove 3 is opened on the upper surface of the locking rod 2, a first positioning plate 4 is fixed at the end of the locking rod 2 away from the sliding groove 3, a limit block 5 is fixed on one side of the first positioning plate 4, and a second positioning plate 6 is fixed on one side of the limit block 5; an adjusting plate 7 is slidably connected to the upper surface of the locking rod 2, a connecting block 8 is fixed at the top of the adjusting plate 7; a pulley 9 is rotatably connected to the surface of the adjusting plate 7, and the pulley 9 is rotatably connected to the sliding groove 3; an adjusting groove 10 is opened on the surface of the adjusting plate 7, an adjusting rod 11 passes through the adjusting groove 10, a support rod 12 is fixed between the two adjusting rods 11, a locking wheel 13 is rotatably connected to the outside of the support rod 12; a connecting plate 14 is fixed at the end of the adjusting rod 11 away from the support rod 12, and a first spring 15 is fixed between the connecting plate 14 and the adjusting plate 7.

[0041] Specifically, a limiting rod 16 is fixed to the inner wall of the adjusting groove 10, and a limiting groove 17 is opened on one side of the adjusting rod 11; the limiting rod 16 passes through the limiting groove 17; the limiting block 5 has an arc-shaped structure, and the distance between the limiting block 5 and the second positioning plate 6 is equal to the diameter of the locking wheel 13; a positioning hole 18 is opened on the surface of the adjusting rod 11, and a guide groove 19 is opened on one side of the positioning hole 18.

[0042] Furthermore, fasteners 20 are fixed on both sides of the locking rod 2; the fasteners 20 include a fastening shell 21, which is fixed inside the locking rod 2; a fixing plate 22 is fixed inside the fastening shell 21, and telescopic rods 23 are fixed on both sides of the fixing plate 22; a second spring 24 is sleeved on the outside of the telescopic rod 23; a movable plate 25 is fixed on the side of the telescopic rod 23 away from the fixing plate 22; one end of the second spring 24 is fixedly connected to the fixing plate 22, and the other end of the second spring 24 is fixedly connected to the movable plate 25; a locking rod 26 is fixed on one side of the movable plate 25, and one end of the locking rod 26 has a hemispherical structure.

[0043] The operation process of this embodiment is as follows: The bracket 1 is securely installed on the crane frame, and the connecting block 8 is connected to the crane's bucket, ensuring that the connecting block 8 is tightly engaged with the bottom of the crane's bucket. When the crane suddenly brakes during forward movement, the bucket will cause the connecting block 8 to slide forward due to inertia. At this time, the connecting block 8 drives the adjusting plate 7 to move, causing the locking wheel 13 on the adjusting plate 7 to move towards the limiting block 5 under inertia. Since the limiting block 5 has an arc-shaped structure, the locking wheel 13 will slide along the arc-shaped surface of the limiting block 5. Finally, it gets stuck in the gap between the limiting block 5 and the second positioning plate 6, initially restricting the sliding of the connecting block 8; at the same time, the moving plate 25 inside the fastener 20 moves towards the adjusting rod 11 under the elastic force of the second spring 24, causing the locking rod 26 to extend and accurately engage in the positioning hole 18 on the surface of the adjusting rod 11, further enhancing the locking effect on the connecting block 8, thereby effectively fixing the cargo box and preventing it from continuing to slide due to inertia; when the crane needs to be restarted, the fastener 20 must first be unlocked, that is, by applying a certain amount of external force. The force overcomes the elasticity of the second spring 24, causing the moving plate 25 to move away from the adjusting rod 11, pulling the locking rod 26 out of the positioning hole 18. Then, the adjusting plate 7 is manually pushed away from the limiting block 5, causing the locking wheel 13 to disengage from the gap between the limiting block 5 and the second positioning plate 6, returning to its initial position. At this time, the first spring 15 also returns to its initial state, the entire locking device is unlocked, and the crane can resume normal operation. This device can quickly respond to the inertial sliding of the cargo box when the crane suddenly brakes. By utilizing the cooperation between the limiting block 5 and the second positioning plate 6, as well as the locking of the locking rod 26 and the positioning hole 18, a double locking of the cargo box is achieved, which greatly improves the locking efficiency during emergency braking, effectively prevents the cargo box from sliding significantly due to inertia, and ensures the safety of the goods and the overall stability of the crane. The overall structure of the device is relatively simple, and the connection and cooperation between the components are clear. This simple structure reduces complex transmission and control links, reduces the probability of failure, and improves the reliability of the device.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A locking device for a port crane running gear, comprising a support (1), characterised in that: The support (1) upper surface is fixed with a locking rod (2); The locking rod (2) upper surface is provided with a sliding groove (3), and the locking rod (2) is fixed with a first positioning plate (4) away from the sliding groove (3), and the first positioning plate (4) is fixed with a limiting block (5) on one side, and the limiting block (5) is fixed with a second positioning plate (6) on one side; The locking rod (2) upper surface is slidably connected with an adjusting plate (7), and the adjusting plate (7) top is fixed with a connecting block (8); The adjusting plate (7) surface is rotatably connected with a pulley (9), and the pulley (9) is rollingly connected with the sliding groove (3); The adjusting plate (7) surface is provided with an adjusting groove (10), and the adjusting groove (10) is penetrated by an adjusting rod (11), and the two adjusting rods (11) are fixed with a supporting rod (12), and the supporting rod (12) outer side is rotatably connected with a locking wheel (13); The adjusting rod (11) is fixed with a connecting plate (14) away from the supporting rod (12), and the connecting plate (14) and the adjusting plate (7) are fixed with a first spring (15).

2. A locking device for a travelling mechanism of a port crane according to claim 1, characterized in that The limiting rod (16) penetrates the limiting groove (17). The limiting block (5) is an arc structure, and the distance between the limiting block (5) and the second positioning plate (6) is equal to the diameter of the locking wheel (13).

3. A locking device for a travelling mechanism of a port crane according to claim 1, characterized in that The adjusting rod (11) surface is provided with a positioning hole (18), and the positioning hole (18) one side is provided with a guide groove (19).

4. A locking device for a travelling mechanism of a port crane according to claim 1, characterized in that The locking rod (2) both sides are fixed with a fastener (20); 5. A locking device for a travelling mechanism of a port crane according to claim 1, characterized in that The fastener (20) comprises a fastening shell (21), and the fastening shell (21) is fixed in the locking rod (2). The fastening shell (21) is fixed with a fixed plate (22), and the fixed plate (22) both sides are fixed with a telescopic rod (23); 6. A locking device for a travelling mechanism of a port crane according to claim 5, characterized in that The telescopic rod (23) outer side is sleeved with a second spring (24); The telescopic rod (23) is fixed with a moving plate (25) away from the fixed plate (22). One end of the second spring (24) is fixedly connected with the fixed plate (22), and the other end of the second spring (24) is fixedly connected with the moving plate (25); 7. A locking device for a travelling mechanism of a port crane according to claim 6, characterized in that The moving plate (25) one side is fixed with a clamping rod (26), and the clamping rod (26) one end is a hemispherical structure. ​

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