Limiting anti-collision mechanism of single-beam bridge crane

Abstract

The utility model relates to the technical field of cranes, and discloses a limiting anti-collision mechanism of a single-beam bridge crane, the crane comprises a rolling wheel, a sliding shaft is arranged at the top of the crane, the sliding shaft is arranged on the single-beam bridge and can do linear reciprocating work along the single-beam bridge, and the limiting anti-collision mechanism comprises a positioning shaft, a limiting rod and a limiting rod, the single beam is arranged on the surface of the single beam bridge to do linear reciprocating motion; the driving assembly is arranged on the single-beam bridge; the screw rod is connected with the output end of the driving assembly, and the surface of the screw rod is sleeved with the positioning shaft; the two moving assemblies are located on the two sides of the positioning shaft and arranged on the single-beam bridge; the connecting assembly is arranged on the moving assembly to do linear motion; and the round rod is arranged on the rolling wheel and corresponds to the connecting assembly.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a limiting and anti-collision mechanism for a single-girder bridge crane. Background Technology

[0002] In existing industrial plants, warehousing and logistics scenarios, single-girder bridge cranes are widely used for material handling and equipment hoisting operations due to their advantages such as simple structure, wide coverage, and high operating efficiency. However, during their operation, especially when moving along the track or hoisting heavy objects, they are prone to safety hazards such as collisions, shaking, or even derailment due to factors such as large inertia, unstable load, or delayed control response. In severe cases, this may even cause equipment damage or personal injury. Therefore, setting up a reliable limit and anti-collision mechanism for the crane to improve the stability of equipment operation while ensuring operational safety has become one of the key directions for current technological improvement.

[0003] Traditional cranes typically prevent overtravel by using mechanical limit blocks or electrical sensors. However, these methods often suffer from slow response, unstable braking, and inaccurate limit control. Furthermore, during lifting, swaying can still cause load instability, affecting overall lifting accuracy and efficiency. Additionally, some traditional anti-collision structures are often integrated with the crane body, making them difficult to disassemble or adapt to different bridge structures, resulting in poor versatility and ease of maintenance. Moreover, in certain special working conditions, such as lifting equipment with a high center of gravity or long-distance movement, track gaps or gravity shifts can easily cause the crane to deviate from its trajectory, collide with the bridge or the running end, creating greater safety risks.

[0004] In view of the above, this application proposes a limiting and anti-collision mechanism for a single-girder bridge crane to solve the above problems. The mechanism should be able to limit and prevent collisions in real time during the operation of the crane, take into account the running stability of the slide rail and the reel, and be adaptable to various bridge structure and usage scenarios. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a limiting and anti-collision mechanism for a single-girder bridge crane, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A limiting and anti-collision mechanism for a single-girder bridge crane, the crane including a reel, a sliding shaft on the top of the crane, the sliding shaft being mounted on the single-girder bridge and capable of linear reciprocating along the single-girder bridge, comprising,

[0008] The positioning shaft, located on both sides of the sliding shaft, is set on the surface of the single beam bridge to perform linear reciprocating motion;

[0009] The drive assembly is installed on a single-girder bridge;

[0010] A screw is connected to the output end of the drive assembly, wherein the positioning shaft is sleeved on the surface of the screw;

[0011] The movable component is provided in two sets, located on both sides of the positioning shaft, and is installed on the single beam bridge;

[0012] The connecting component is positioned on the moving component and moves linearly.

[0013] A round rod is mounted on the reel and corresponding to the connecting assembly.

[0014] Optionally, the screw is connected to the inner cavity of the positioning shaft via a ball nut.

[0015] Optionally, the drive assembly includes a drive motor and a worm gear unit;

[0016] The worm gear unit is mounted on a single-beam bridge;

[0017] The output end of the drive motor is connected to the worm gear unit, and the other end of the worm gear unit is connected to the screw.

[0018] Optionally, the moving component includes a moving shaft and a support rod;

[0019] The movable shaft is located on a single-beam bridge;

[0020] The support rod is detachably inserted into the movable shaft.

[0021] Optionally, a slide rail is provided in the middle of the support rod.

[0022] Optionally, the connecting assembly includes a connecting rod and a connecting shaft;

[0023] One side of the connecting rod surface is adapted to the size of the slide rail, limiting its vertical movement within the slide rail;

[0024] The connecting shaft is fixedly connected to one end of the connecting rod, and its inner cavity diameter is adapted to the size of the round rod.

[0025] This utility model provides a limiting and anti-collision mechanism for a single-girder bridge crane, which has the following beneficial effects:

[0026] 1. By setting inverted U-shaped positioning shafts on both sides of the slide shaft and using independent drive components for control, effective limiting can be achieved when the slide shaft stops, preventing slippage due to inertia or gravity and reducing the risk of collision during crane operation.

[0027] 2. By connecting the components and the round rods on both sides of the reel, the swaying range during the hoisting process is limited, ensuring that the crane is more stable when lifting items, and improving the accuracy and safety of the operation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] In the diagram: 1. Crane; 11. Roller; 2. Sliding shaft; 3. Single beam bridge; 4. Positioning shaft; 5. Drive assembly; 51. Drive motor; 52. Worm gear unit; 6. Screw; 7. Moving assembly; 71. Moving shaft; 72. Support rod; 721. Slide rail; 8. Connecting assembly; 81. Connecting rod; 82. Connecting shaft; 9. Round rod. Detailed Implementation

[0030] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] This application proposes a limiting and anti-collision mechanism for a single-girder bridge crane, as detailed below:

[0033] For reference Figure 1 The structure of this application is mainly set on the single beam bridge 3 and the crane 1. The structure is designed to enable the crane 1 and the single beam bridge 3 to achieve the effect of limiting and preventing collision.

[0034] For reference Figure 1 The crane 1 is used to lift objects up and down. The crane 1 is equipped with a reel 11 to help the crane 1 to lift objects relatively smoothly. Secondly, a sliding shaft 2 is provided on the top of the crane 1. The crane 1 is driven by the sliding shaft 2 to make the crane 1 reciprocate on the single beam bridge 3. The existing crane 1 and sliding shaft 2 are common and mature technologies, and this application will not elaborate further.

[0035] For reference Figure 1To ensure relative stability of the sliding shaft 2 during movement, positioning shafts 4 are installed on both sides of the sliding shaft 2. The positioning shafts 4 are inverted U-shaped and are positioned on both sides of the sliding shaft 2 in a wrapped manner. The positioning shafts 4 are installed on the single beam bridge 3 in the same way as the sliding shaft 2, but the positioning shafts 4 and the sliding shaft 2 are driven separately. The positioning shafts 4 are driven by the drive assembly 5. Thus, by driving them separately, when the positioning shafts 4 stop moving, they can further limit the sliding shaft 2, preventing the sliding shaft 2 from sliding again due to gravity, which could cause the supported items to shake and cause the sliding shaft 2 to move again.

[0036] For reference Figure 1 The drive assembly 5 is used to drive the sliding shaft 2 to work. The drive assembly 5 includes a drive motor 51 and a worm gear unit 52. The worm gear unit 52 is mounted on the single beam bridge 3. The output end of the drive motor 51 is connected to the worm gear unit 52, and the other end of the worm gear unit 52 is connected to the screw 6. The drive motor 51 drives the worm gear unit 52 to move, which in turn drives the screw 6 connected to the worm gear unit 52 to rotate. The screw 6 is connected to the inner cavity of the positioning shaft 4 through a ball nut. Thus, the rotation of the screw 6 will cause the positioning shaft 4 to rotate.

[0037] It should be noted that the worm gear unit 52 is a mature existing technology. The worm gear unit 52 includes two main structures: a worm and a worm. The worm is connected to the output end of the drive motor 51, while the worm works in conjunction with the worm. One end of the worm is connected and fixed to the screw 6, which is equivalent to an extension of the worm. The connection and drive of this structure are mature technologies in the prior art, and will not be described in detail in this application.

[0038] For reference Figure 1 Two sets of movable components 7 are located on both sides of the positioning shaft 4 and are mounted on the single beam bridge 3. The two sets of movable components 7 are detachably mounted on the single beam bridge 3 for operation and can be disassembled and assembled according to different work requirements. The movable component 7 includes a movable shaft 71 and a support rod 72. The movable shaft 71 is mounted on the single beam bridge 3. The support rod 72 is detachably inserted into the movable shaft 71 and its installation position can be adjusted according to different usage conditions to ensure that it is adapted to the required height.

[0039] For reference Figure 1The support rod 72 has a slide 721 in the middle. The connecting assembly 8 is installed in the slide 721 and moves up and down. The connecting assembly 8 includes a connecting rod 81 and a connecting shaft 82. One side of the surface of the connecting rod 81 is adapted to the size of the slide 721 and is limited to working up and down in the slide 721. The connecting shaft 82 is fixedly connected to one end of the connecting rod 81. Its inner cavity diameter is adapted to the size of the round rod 9. The round rod 9 has two symmetrically arranged on the two sides of the roller 11.

[0040] It should be noted that the connecting rod 81 is a telescopic rod, and the connecting shaft 82 at one end of the connecting rod 81 is connected to the round rod 9 by changing its length. After the connecting shaft 82 is fully connected to the round rod 9, the telescopic rod (connecting rod 81) is fixed to ensure that the length will not change again in subsequent work.

[0041] By connecting component 8 and round rod 9, the smoothness of its up-and-down movement is controlled during subsequent movements, and its range of motion is limited, thereby reducing the possibility of collision.

[0042] In this invention, the working steps of the device are as follows:

[0043] The movement of this device mainly revolves around the movement of the crane 1 along the sliding shaft 2 on the single beam bridge 3. Collision prevention and stability control are achieved through multiple sets of limiting and connecting structures. During the lifting process, the crane 1 is driven by the sliding shaft 2 to move back and forth. To prevent slippage or swaying from affecting operational safety, inverted U-shaped positioning shafts 4 are set on both sides of the sliding shaft 2. The positioning shafts 4 are driven by the drive assembly 5 (including drive motor 51, worm gear unit 52 and screw 6) to achieve independent limiting of the sliding shaft 2 and avoid slippage caused by gravity or inertia when not in operation. The moving assembly 7 (including moving shaft 71 and support rod 72) is used to adjust the installation height of the positioning shaft 4 to adapt to different usage scenarios. The support rod 72 has a slide rail 721 in the middle, and the slide rail has a connecting assembly 8 (including connecting rod 81 and connecting shaft 82). The connecting shaft 82 cooperates with the round rods 9 on both sides of the reel 11 to limit the up and down swaying during the lifting process and improve the overall stability of operation. Through the cooperation of the above structures, the lifting function can be realized, and the impact and swaying can be effectively prevented to ensure operational safety.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A kind of single-beam bridge crane limiting anti-collision mechanism, the crane (1) includes reel (11), the top of the crane (1) is equipped with slide shaft (2), the slide shaft (2) is equipped in the single-beam bridge (3), and can be linear reciprocating along the single-beam bridge (3) work, it is characterized by: The utility model relates to a single-beam bridge automatic cleaning device, including, Positioning shaft (4) is located both sides of sliding shaft (2) and sets up on the surface of single-beam bridge (3) and does linear reciprocating motion; Driving assembly (5) is set up on single-beam bridge (3); Screw rod (6) is connected with the output end of driving assembly (5), wherein the positioning shaft (4) is sleeved on the surface of screw rod (6); Moving assembly (7) is equipped with two groups and is located both sides of positioning shaft (4) and is set up on single-beam bridge (3); Connecting assembly (8) is set up on moving assembly (7) and does linear motion; Round rod (9) is set up on winding wheel (11) and is correspondingly set up with connecting assembly (8).

2. The limit and collision prevention mechanism for a single-girder bridge crane according to claim 1, characterized in that: The screw rod (6) is connected with the inner cavity of the positioning shaft (4) through the ball nut.

3. The motion limiter anti-collision mechanism of a single-girder bridge crane according to claim 1, characterized in that: The driving assembly (5) includes a driving motor (51) and a turbine worm unit (52). The turbine worm unit (52) is set on the single-beam bridge (3). The output end of the driving motor (51) is connected with the turbine worm unit (52), and the other end of the turbine worm unit (52) is connected with the screw rod (6).

4. The motion limiter anti-collision mechanism of a single-girder bridge crane according to claim 1, characterized in that: The moving assembly (7) includes a moving shaft (71) and a support rod (72). The moving shaft (71) is set on the single-beam bridge (3). The support rod (72) is detachably inserted into the moving shaft (71).

5. The end stop collision prevention mechanism of a single girder bridge crane according to claim 4, characterized in that: A slide (721) is formed in the middle of the support rod (72).

6. The limit and collision prevention mechanism for a single-girder bridge crane according to claim 5, characterized in that: The connecting assembly (8) includes a connecting rod (81) and a connecting shaft (82). The surface of the connecting rod (81) is adapted to the size of the slide (721) and is limited in the slide (721) for up-down work. The connecting shaft (82) is fixedly connected to one end of the connecting rod (81), and the inner diameter of the connecting shaft (82) is adapted to the size of the round rod (9).

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