A straddle carrier track clamping tool

Abstract

The application discloses a ship unloading machine trolley rail clamping tool, and relates to the technical field of rail clamping and positioning, which comprises a hoisting plate and positioning pins arranged on the two sides of the hoisting plate, the hoisting plate is vertically provided with a U-shaped groove downward, and the U-shaped groove corresponds to the trolley rail downward; the positioning pins are inserted into the U-shaped groove and act on the side notches of the trolley rail, the positioning pins are in threaded connection with the side of the hoisting plate, after the end of the positioning pin abuts against the side notch of the trolley rail, the trolley rail is clamped and transferred by the positioning pins on the two sides, and the technical advantages of the application are as follows: the tool installation and steel rail hoisting can be completed by one person through the rail clamping tool, the operation time is shortened by more than 60%, the tool is suitable for complex spaces and does not need to occupy the ground operation surface; the self-made rail clamping tool adopts a detachable and lightweight structure, can be quickly assembled through bolts, is suitable for different types of rails, is convenient to make, and can be made as required; the maintenance efficiency is improved, the single rail adjustment time is shortened by one time, and the single operation labor cost is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of track clamping and positioning technology, and in particular to a track clamping tool for a ship unloader trolley. Background Technology

[0002] In port bulk cargo handling operations, ship unloaders, as core equipment, undertake the crucial task of efficiently transferring bulk cargo (such as coal, ore, and grain) carried by ships to the terminal yard or subsequent transportation system. Their operational efficiency and stability directly affect the overall throughput and operational benefits of the port. The main trolley track of the ship unloader typically consists of two parallel steel rails installed on the gantry or boom structure of the ship unloader, providing guidance and support for the reciprocating motion of the main trolley. In actual operation, the main trolley needs to carry a grab bucket fully loaded with materials to complete frequent starting, braking, acceleration, and deceleration actions. In recent years, with the continuous increase in the workload of ship unloaders and the extension of their service life, a series of more specific and serious problems have become increasingly prominent: the deterioration of the trolley track rubber pads has become increasingly serious, and their buffering and shock absorption performance has dropped significantly, failing to effectively alleviate the impact force during the operation of the main trolley; the wear and indentation problems at the track joints have been continuously aggravated due to long-term repeated loads, forming obvious height differences; track cracking occurs frequently, and short rails at hinge points are prone to misalignment, further damaging the continuity and flatness of the track. These problems are superimposed, resulting in increasingly obvious vibration and jumping of the main trolley during travel. Therefore, track replacement is necessary. Ship unloader tracks are usually installed at high altitudes or within narrow steel structures. Currently, replacement requires the construction of temporary supports or the use of multiple cranes and manual assistance to lift and adjust the tracks. This method not only requires a large workforce and incurs high costs for temporarily renting large lifting equipment, but also increases the risk of accidents such as falling objects from heights, rail slippage, and personnel falls. How to achieve efficient and stable track replacement has become a technical problem that those skilled in the art need to solve. Utility Model Content

[0003] This device provides a rail clamping fixture for a ship unloader trolley, and the specific implementation method is as follows: A rail clamping fixture for a ship unloader trolley, comprising: The lifting plate has a U-shaped groove vertically facing downwards, and the U-shaped groove corresponds downwards to the trolley track; Positioning pins are located on both sides of the lifting plate. The positioning pins are inserted into the U-shaped groove and act on the side groove of the trolley track. The positioning pins are threaded to the side of the lifting plate. After the end of the positioning pin abuts against the side groove of the trolley track, the positioning pins on both sides clamp and transfer the trolley track.

[0004] Based on the above technical solution, by designing a lifting plate with a U-shaped groove, the section of trolley track that needs to be replaced can be covered. The positioning pins on both sides can clamp the trolley track by adjusting the distance with threaded connections; when the distance between the ends of the positioning pins is greater than the width of the trolley track, the trolley track is released. To facilitate convenient operation of a section of trolley track to be replaced, a lifting plate with a U-shaped groove was designed. Its core advantage is that it can cover the target track section. The lifting plate is equipped with positioning pins on both sides, using a threaded adjustable connection method. When it is necessary to fix the trolley track, the operator can rotate the positioning pins and use the threaded structure to change their insertion length, so that the ends of the positioning pins on both sides gradually move closer to the side of the trolley track. As the adjustment is carried out, when the distance between the ends of the positioning pins on both sides is reduced to match the width of the trolley track, the track can be firmly clamped, ensuring that the track remains stable during lifting or replacement and avoiding displacement or shaking. Preferably, threaded rings are provided on both sides of the bottom of the lifting plate, and the distance between the two threaded rings is greater than the opening width of the U-shaped groove.

[0005] Preferably, the locating pin includes a column, the head of which is provided with an external thread, and the external thread is horizontally threaded to a threaded ring.

[0006] Based on the above technical solution, guide rings can also be arranged side by side at the threaded rings on both sides. The guide rings and threaded rings are arranged coaxially, and the cylindrical part of the locating pin is connected to the guide ring in an axial sliding manner. When the locating pin is adjusted by threaded connection through the threaded ring, the guide ring can effectively limit and guide the cylindrical part. It can counteract the radial offset or shaking that may occur during the adjustment of the locating pin, so that the cylindrical part always moves smoothly along the preset axial trajectory, avoiding problems such as jamming and wear caused by assembly deviations. Preferably, the height of the U-shaped groove is greater than the height of the trolley track.

[0007] Based on the above technical solution, the operation is equally simple and efficient when the trolley track needs to be released; simply rotate the positioning pin in the opposite direction to increase the distance between its ends. When this distance is greater than the width of the trolley track, the track will be released from the clamping state, achieving smooth release. This design is not only compact and easy to operate, but also adaptable to trolley tracks of different widths, greatly improving the efficiency and safety of track replacement operations. Preferably, it also includes an electric hoist mounted on the ship unloader, the output end of which is provided with a hook that engages with a mounting through hole in the hoisting plate.

[0008] Preferably, several hoisting plates and electric hoists are evenly spaced along the length of the trolley track.

[0009] Based on the above technical solutions, the lifting plate and electric hoist are arranged in several equidistant positions along the length of the trolley track. This ensures that when the trolley track is being replaced, the stress points are evenly distributed, avoiding damage to the track or lifting equipment due to excessive local stress. It also facilitates simultaneous operation at multiple positions, effectively improving the stability and efficiency of the operation. The rail clamping fixture itself has the advantage of being lightweight and does not require additional lifting equipment. It can be easily lifted by the electric hoist equipped on the ship unloader. This not only simplifies the operation process and reduces the cost of equipment allocation and use, but also enables a rapid response to operational needs, shortens the preparation time, and further ensures the efficient implementation of the entire rail replacement operation.

[0010] In summary, this application includes the following beneficial technical effects: 1. This utility model uses a rail clamping fixture, allowing a single person to complete the installation of the fixture and the lifting of the rail, reducing the operation time by more than 60% and adapting to complex spaces without occupying ground work surface; 2. This utility model has a simple structure. The self-made rail clamping fixture adopts a detachable and lightweight structure, which can be quickly assembled by bolts. It can be adapted to different types of rails, making it easy to make and use as needed. 3. This utility model improves maintenance efficiency by 50%, reduces the time for a single track adjustment from 4 hours to 2 hours, reduces labor costs per operation by 70%, and reduces high-altitude operation time by 80%; and the accident rate also decreases accordingly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure after the application of this utility model; Figure 2 This is a schematic diagram of the rail clamping fixture in this utility model; Figure 3 This is an exploded structural diagram of the rail clamping fixture in this utility model; Figure 4 This is a schematic diagram of the exploded structure after the application of this utility model; Figure 5 This is a structural schematic diagram of the electric hoist and rail clamping fixture in this utility model.

[0012] Explanation of reference numerals in the attached figures: 1. Lifting plate, 2. Locating pin, 3. Threaded ring, 4. Mounting through hole, 5. Trolley track, 6. Lifting hook, 7. Electric hoist. 101. U-shaped groove, 201. Column; 202. External thread. Detailed Implementation

[0013] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples: It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0014] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0015] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0016] This application discloses a rail clamping fixture for a ship unloader trolley.

[0017] Example 1 Reference Figures 1 to 3 This embodiment discloses a rail clamping fixture for a ship unloader trolley, including an electric hoist 7, a lifting plate 1, and positioning pins 2 on both sides of the lifting plate 1. The lifting plate 1 has a U-shaped groove 101 vertically facing downward, and the U-shaped groove 101 corresponds downward to the trolley track 5. In this structure, the output end of the electric hoist 7 is provided with a hook 6, which is inserted into the mounting through hole 4 on the lifting plate 1. Both the lifting plate 1 and the electric hoist 7 are provided with several at equal intervals along the length direction of the trolley track 5.

[0018] Example 2 Reference Figures 1 to 5 Based on the above embodiments, this embodiment also discloses a rail clamping fixture for a ship unloader trolley. The positioning pin 2 is inserted into the U-shaped groove 101 and acts on the side groove of the trolley track 5. The positioning pin 2 is threaded to the side of the lifting plate 1. After the end of the positioning pin 2 abuts against the side groove of the trolley track 5, the positioning pins 2 on both sides clamp and transfer the trolley track 5.

[0019] Both sides of the bottom of the lifting plate 1 are provided with threaded rings 3, and the distance between the two threaded rings 3 is greater than the opening width of the U-shaped groove 101. The positioning pin 2 includes a column 201, and the head of the column 201 is provided with an external thread 202, and the external thread 202 is horizontally threaded to the threaded ring 3. In this structure, the height of the U-shaped groove 101 is greater than the height of the trolley track 5.

[0020] The specific disassembly and assembly process is as follows: The trolley track 5 is cut, and all the pressure plate screws of the trolley track 5 are removed. Then, the pressure plate is removed 5-6 meters forward from the cut point of the trolley track 5. The lifting plate 1 is lifted to the top of the trolley track 5 using the electric hoist 7. After the lifting plate 1 is lowered, the U-shaped groove 101 covers the trolley track 5. The positioning pins 2 on both sides are screwed inward, and the positioning pins 2 are fed into the U-shaped groove 101. The positioning pins 2 on both sides are clamped inward on both sides of the trolley track 5. Each electric hoist 7 is raised, and each positioning pin 2 bears the force when lifting the trolley track 5.

[0021] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A rail clamping fixture for a ship unloader trolley, characterized in that, include: The hoisting plate (1) has a U-shaped groove (101) vertically facing downwards, and the U-shaped groove (101) corresponds downwards to the trolley track (5); Positioning pins (2) are provided on both sides of the lifting plate (1). The positioning pins (2) are inserted into the U-shaped groove (101) and act on the side groove of the trolley track (5). The positioning pins (2) are threaded to the side of the lifting plate (1). After the end of the positioning pin (2) abuts against the side groove of the trolley track (5), the positioning pins (2) on both sides clamp and transfer the trolley track (5).

2. The rail clamping fixture for a ship unloader trolley according to claim 1, characterized in that, The bottom sides of the lifting plate (1) are provided with threaded rings (3), and the distance between the two threaded rings (3) is greater than the opening width of the U-shaped groove (101).

3. The rail clamping fixture for a ship unloader trolley according to claim 2, characterized in that, The positioning pin (2) includes a column (201), the head of which is provided with an external thread (202), and the external thread (202) is horizontally threaded to the threaded ring (3).

4. The rail clamping fixture for a ship unloader trolley according to claim 3, characterized in that, It also includes an electric hoist (7) installed on the ship unloader, the output end of which is provided with a hook (6), the hook (6) being inserted into the mounting through hole (4) on the hoisting plate (1).

5. The rail clamping fixture for a ship unloader trolley according to claim 1, characterized in that, The height of the U-shaped groove (101) is greater than the height of the trolley track (5).

6. The rail clamping fixture for a ship unloader trolley according to claim 4, characterized in that, Both the hoisting plate (1) and the electric hoist (7) are arranged at equal intervals along the length of the trolley track (5).

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