Aluminium alloy walkway for cranes

Abstract

The utility model relates to the technology field of walking platform, concretely is a kind of crane aluminium alloy walking platform, a kind of crane aluminium alloy walking platform, including walking platform, the column pole in walking platform both sides, and with the extension plate of walking platform connection;Column pole outer fixedly arranged with collar, the front end of collar is fixedly provided with cantilever beam, the lower surface of extension plate is fixedly provided with cantilever beam, walking platform inside rotationally connected have pivot, the outer wall of pivot is fixedly covered with gear, gear just above is equipped with the rotating member of pivot fixed connection, walking platform inside along front and back direction slidingly connected have with circular gear meshing rack, rack front end and extension plate inside connection fixed;The utility model increases the walking surface of traditional walking platform by setting extension plate, solves the problem that walking surface is not enough when walking platform is used in practical.

Description

Technical Field

[0001] This utility model relates to the field of walkway technology, specifically to an aluminum alloy walkway for cranes. Background Technology

[0002] A crane walkway is a special platform installed on the crane's metal structure for operators to inspect, maintain, or move around. The core function of the walkway is to provide a safe passage and a stable walking surface for operators when moving on the crane.

[0003] As a piece of equipment used in engineering operations, the walkway must possess high stability and safety to prevent accidents to workers. Structurally, it must be stable and robust, and multiple safety measures can be used to strengthen the equipment. At the same time, the core function of the walkway is to provide a stable walking surface that can be moved on the machine. When the moving surface is insufficient, operators need to install additional walkways or constantly adjust the position of the existing walkways, which not only wastes time and efficiency but also increases engineering costs. Utility Model Content

[0004] The purpose of this utility model is to provide an aluminum alloy walkway for cranes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum alloy walkway for a crane, comprising a walkway 1, columns 3 located on the left and right sides of the walkway 1, and an extension plate 2 connected to the walkway 1; a collar 4 is fixedly sleeved on the outer wall of the column 3, a cantilever beam 5 is fixedly sleeved at the front end of the collar 4, a rotating shaft 6 is rotatably connected inside the walkway 1, a gear 7 is fixedly sleeved on the outer wall of the rotating shaft 6, a rotating component 8 is fixedly connected to the rotating shaft 6 directly above the gear 7, and a rack 9 that meshes with the gear 7 is slidably connected inside the walkway 1 along the front-back direction, the front end of the rack 9 being fixedly connected to the extension plate 2.

[0006] Preferably, the cantilever beam 5 includes a cantilever 10 and a T-shaped limiting groove 11 fixedly disposed at the rear end of the cantilever 10; when the upper surface of the extension plate 2 is at the same level as the upper surface of the platform plate 1, the upper surface of the T-shaped limiting groove 11 abuts against the lower surface of the platform plate 1.

[0007] Preferably, the top of the cantilever 10 is a T-shaped structure 12, and a number of protrusions 13 are fixedly provided on the upper surface of the T-shaped structure 12. A number of grooves 14 adapted to the protrusions 13 are provided on the lower surface of the extension plate 2.

[0008] Preferably, the cross-section of the protrusion 13 is an isosceles trapezoid, and the upper bottom surface of the protrusion 13 is fixed to the direction of the extension plate 2.

[0009] Preferably, the collar 4 includes a first collar 15, a second collar 16 fixedly disposed directly above the first collar 15, and a connecting ring 17 connecting the first collar 15 and the second collar 16; the first collar 15 and the second collar 16 are fixedly connected to the column rod 3 by bolts.

[0010] Preferably, a limiting tooth 18 is fixedly provided on the rack 9 near the rear inner wall of the gear 7, and the length of the limiting tooth 18 extending toward the gear 7 is greater than the maximum gap between the gear 7 and the rack 9.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting an extension plate, this utility model increases the walking surface of the traditional walkway, and at the same time uses bolts and cantilever beams for double security fixation. When not in use, the extension plate can also be moved by the collar to reduce space waste, thereby realizing the expansion of the walkway's extra activity space and solving the problem of insufficient walking surface when the walkway is actually used. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 2 Schematic diagram of the structure behind the central storage extension panel; Figure 3 This is a schematic diagram of the rotating component, shaft, gear, and rack of this utility model.

[0013] In the diagram: 1. Platform; 2. Extension plate; 3. Column; 4. Collar; 5. Cantilever beam; 6. Shaft; 7. Gear; 8. Rotating component; 9. Rack; 10. Cantilever; 11. T-shaped limiting groove; 12. T-shaped structure; 13. Protrusion; 14. Groove; 15. First collar; 16. Second collar; 17. Connecting ring; 18. Limiting tooth. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Example Please see Figures 1-3This utility model provides a technical solution: an aluminum alloy walkway for cranes, including a walkway 1, which is fixedly installed on the side of the machine to be repaired. The walkway 1 is rectangular in shape, with a length of 2000mm, a width of 800mm, and a thickness of 20mm. A rectangular receiving chamber is formed along its length inside for installing transmission components. An extension plate 2 is connected to the walkway 1, and the width of the extension plate 2 is the same as that of the walkway 1. The extension plate 2 can slide vertically up and down along the column rod 3 via a collar 4. The upper surface of the extension plate 2 and the upper surface of the walkway 1 are both provided with anti-slip textures to increase friction and improve the safety of the operator. Column rods 3 are located on both sides of the walkway 1, and their bottoms are fixed to the ground at the construction site. Column rods 3 are cylindrical aluminum alloy tubes, with two symmetrically distributed along the centerline of the walkway 1. Column rods 3 form the basic framework for realizing the extension function. A collar 4 is fitted onto the outer wall of the column rod 3. The collar 4 includes a first collar 15, a second collar 16, and a connecting ring 17. Both the first collar 15 and the second collar 16 are circular aluminum alloy rings with an inner diameter that matches the diameter of the column rod 3. The connecting ring 17 is a quarter-circle cylindrical ring cut from the axis, with its upper and lower ends welded to the first collar 15 and the second collar 16, respectively. Both the first collar 15 and the second collar 16 are fitted onto the outer wall of the column rod 3 and are threaded onto the column rod 3 using M12 bolts passing through bolt holes on the collar 4. A cantilever beam 5 is welded and fixed to the outer wall of the collar 4. The cantilever beam 5 includes a cantilever 10 and a T-shaped limiting groove 11. The cantilever 10 is a rectangular aluminum alloy beam, and the rear end of the cantilever beam 5 has an integrally formed T-shaped limiting groove 11, which limits the horizontal height of the upper surface of the extension plate 2 from exceeding the horizontal height of the upper surface of the platform plate 1, preventing accidents caused by height differences. Meanwhile, the cantilever 10 is also fixedly installed on the lower surface of the extension plate 2. When the extension plate 2 is flush with the platform plate 1, the cantilever 10 can support it from below to prevent the extension plate 2 from deforming or collapsing. The top of the cantilever 10 is integrally formed with a T-shaped structure 12, and three protrusions 13 are evenly distributed on its upper surface. The cross-section of the protrusion 13 is an isosceles trapezoid. The lower surface of the extension plate 2 is provided with grooves 14 that are adapted to it. The number and position of the grooves 14 correspond one-to-one with the protrusions 13. When the protrusions 13 and the grooves 14 engage, the stability of the extension plate 2 can be better increased.

[0016] A rotating shaft 6, a circular aluminum alloy shaft, is rotatably connected to the inner cavity of the platform plate 1 via bearings. A gear 7, a spur gear, is fixedly mounted on the outer wall of the rotating shaft 6 and meshes with the rack 9, rotating within the cavity of the platform plate 1. The rack 9 is also fixedly mounted within the cavity of the platform plate 1 and can slide along the front-back direction within the cavity. The tooth surfaces of the rack 9 mesh with the tooth surfaces of the gear 7. The front end of the rack 9 can be extended by the rotation of the gear 7, penetrating into the interior of the extension plate 2 to fix the extension plate 2 to the platform plate 1. An integrally formed limiting tooth 18 is provided on the rack 9 near the rear inner wall of the gear 7. The length of the limiting tooth 18 extending towards the gear 7 is greater than the maximum gap between the gear 7 and the rack 9. When the rack 9 moves to its furthest point... The limiting tooth 18 abuts against the gear 7, and the gear 7 and rack 9 are locked together to prevent the rack 9 from disengaging from the gear 7. A rotating component 8 is fixedly connected to the top of the rotating shaft 6 directly above the gear 7. The rotating component 8 is a handwheel structure, which is convenient for the operator to rotate manually. When the rotating component 8 is rotated counterclockwise, the rotating component 8 drives the gear 7 fixed on the outer wall of the rotating shaft 6 to rotate. At this time, the rack 9 that meshes with the gear 7 will move along the direction of the extension plate 2 due to the rotation of the gear 7. When the rotating component 8 is rotated clockwise, the rack 9 that meshes with the gear 7 will retract along the direction of the platform plate 1.

[0017] In actual use, firstly, fix the two columns 3 vertically to both sides of the walkway 1, and then fit a collar 4 on each of the two columns 3. Fix the collar 4 to the column 3 with bolts. Since the cantilever beam 10 is welded and fixed to the collar 4, the position of the cantilever beam 10 can be changed by moving the collar 4.

[0018] When it is necessary to extend the length of the walkway 1, the operator can rotate the rotating part 8 on the upper surface of the walkway 1 counterclockwise. Rotating the rotating part 8 will drive the rotating shaft 6 to rotate, and the gear 7 fixed on the rotating shaft 6 will also rotate synchronously. Since the gear 7 meshes with the rack 9, the rotation of the gear 7 will be converted into the force that causes the rack 9 to slide forward along the direction of the extension plate 2, so that the rack 9 can penetrate into the interior of the extension plate 2 to achieve connection and fixation. At the same time, due to the limiting effect of the limiting tooth 18, the rack 9 will not slide forward continuously, thus preventing it from falling off from the gear 7.

[0019] If no additional surface is needed, the cantilever beam 10 can be rotated 180 degrees by the collar 4 and moved directly under the platform 1. At the same time, the extension plate 2 can be retracted to complete the storage work.

[0020] This utility model increases the walking surface of a traditional walkway by setting an extension plate. It is also secured with bolts and a cantilever beam for double protection. When not in use, the extension plate can be moved by a collar to reduce space waste, thereby expanding the walkway's extra space and solving the problem of insufficient walking surface in actual use.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crane aluminum alloy walkway, characterized in that: Includes a walkway (1), column rods (3) located on the left and right sides of the walkway (1), and an extension plate (2) connected to the walkway (1); a collar (4) is fixedly sleeved on the outer wall of the column rod (3), and a cantilever beam (5) is fixedly sleeved at the front end of the collar (4); a rotating shaft (6) is rotatably connected inside the walkway (1), a gear (7) is fixedly sleeved on the outer wall of the rotating shaft (6), and a rotating component (8) fixedly connected to the rotating shaft (6) is provided directly above the gear (7); a rack (9) that meshes with the gear (7) is slidably connected inside the walkway (1) along the front-back direction, and the front end of the rack (9) is fixedly connected to the extension plate (2).

2. The crane aluminum alloy walkway according to claim 1, characterized in that: The cantilever beam (5) includes a cantilever (10) and a T-shaped limiting groove (11) fixedly disposed at the rear end of the cantilever (10); when the upper surface of the extension plate (2) and the upper surface of the walkway plate (1) are at the same level, the upper surface of the T-shaped limiting groove (11) abuts against the lower surface of the walkway plate (1).

3. The crane aluminum alloy walkway according to claim 2, characterized in that: The top of the cantilever (10) is a T-shaped structure (12), and a number of protrusions (13) are fixed on the upper surface of the T-shaped structure (12). A number of grooves (14) that are adapted to the protrusions (13) are opened on the lower surface of the extension plate (2).

4. The crane aluminum alloy walkway according to claim 3, characterized in that: The cross-section of the protrusion (13) is an isosceles trapezoid, and the upper bottom surface of the protrusion (13) is fixed to the direction of the extension plate (2).

5. The crane aluminum alloy walkway according to claim 1, characterized in that: The collar (4) includes a first collar (15), a second collar (16) fixedly disposed directly above the first collar (15), and a connecting ring (17) connecting the first collar (15) and the second collar (16); the first collar (15) and the second collar (16) are fixedly connected to the column rod (3) by bolts.

6. The crane aluminum alloy walkway according to claim 1, characterized in that: A limiting tooth (18) is fixedly provided on the rear side of the inner wall of the rack (9) near the gear (7). The length of the limiting tooth (18) extending toward the gear (7) is greater than the maximum gap between the gear (7) and the rack (9).

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