Detachable boarding and alighting device of bridge crane

Abstract

The utility model discloses a detachable boarding device for a bridge crane, which comprises a flat part supported by a vertically arranged support leg and an inclined surface part connected with the flat part, protective fences are arranged on the two edges of the inclined surface part and the flat part in the width direction, a maintenance square groove is formed in the center of the flat part, and the maintenance square groove is connected with the inclined surface part. A plurality of detachable bearing plates are evenly arranged in the maintenance square groove, a through groove is formed in the center of the inclined face part, and a plurality of detachable step plates are evenly arranged in the through groove. The problems that in the prior art, assemblies of an operation mechanism are closely arranged and cannot be overhauled easily, and the personal safety of workers is threatened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a detachable boarding and dismounting device for a bridge crane. Background Art

[0002] In the steel mills of metallurgical enterprises, bridge cranes are responsible for lifting steel billets, maintenance, and iron oxide transportation. The bridge frame and operating mechanism are the main components that control the movement of the lifting rings and lift heavy objects.

[0003] The space for the existing operating mechanism on the bridge is extremely narrow. When overhead crane operators and maintenance workers need to inspect and repair the lifting components and moving components of the operating mechanism, they can only step on the reducer, drive shaft, motor, brake, protective device, or use the narrow edge gaps to pass through. As a result, when the maintenance workers are inspecting, repairing or maintaining equipment components such as the reducer, there is a possibility of falling from a height if they are not careful, which poses a certain threat to the workers' personal safety. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable boarding and dismounting device for a bridge crane to solve the problem in the prior art that the components of the operating mechanism are tightly arranged and difficult to access for maintenance, which poses a threat to the personal safety of the workers.

[0005] In order to solve the deficiencies of the above-mentioned technical problems, the technical solution adopted by the present invention is: a detachable boarding and disembarking device for a bridge crane, comprising a flat portion supported by vertically arranged support legs and an inclined portion connected to the flat portion, and guardrails are provided at both edges of the inclined portion and the flat portion in the width direction, a maintenance square groove is provided at the center of the flat portion, a plurality of detachable bearing plates are evenly arranged in the maintenance square groove, a through groove is provided at the center of the inclined portion, a plurality of detachable step plates are evenly arranged in the through groove.

[0006] As a further optimization of the detachable boarding and disembarking device of a bridge crane of the utility model: two positioning bars are provided in the inspection square groove, and the two positioning bars are respectively arranged at the two edges in the width direction of the inspection square groove. A square groove corresponding to the end of the load-bearing plate is opened on the positioning bar, and a rotating shaft is provided at the end of the load-bearing plate, and a locking assembly is provided on the rotating shaft.

[0007] As a further optimization of the detachable boarding and disembarking device of a bridge crane of the utility model: positioning plates are provided on the inner walls of both edges in the width direction of the through slot, and square grooves corresponding to the ends of the step plates are opened on the positioning plates. A rotating shaft is provided at the end of the step plate, and a locking assembly is provided on the rotating shaft.

[0008] As a further optimization of the detachable boarding and disembarking device of a bridge crane according to the utility model: the locking assembly includes long strips arranged at both ends of the rotating shaft, the length of the long strips is greater than the width of the square slot, the length of the long strips is less than the length of the square slot, and a torsion spring is surrounded by the lower part of the rotating shaft to drive the length direction of the long strips to be flush with the width direction of the square slot.

[0009] As a further optimization of the detachable boarding and disembarking device for a bridge crane of the utility model: a plurality of clamping frames are rotatably provided at the bottom of the inclined portion, and a stabilizing frame is provided at the length edge of the flat portion away from the inclined portion, and the clamping frame and the stabilizing frame are used to position the inclined portion and the flat portion on the operating mechanism.

[0010] As a further optimization of the detachable boarding and disembarking device for a bridge crane of the utility model: the clamping frame is set in an L shape, the end of the longer section of the clamping frame is rotatably connected to the bottom of the inclined section, and the shorter section of the clamping frame is threadedly connected with a tightening screw.

[0011] As a further optimization of the detachable boarding and dismounting device for a bridge crane of the utility model: the stabilizing frame is U-shaped, the groove of the stabilizing frame is arranged toward the inclined portion, the upper side of the stabilizing frame is connected to the flat portion by a thread, and the lower side of the stabilizing frame is clamped with the operating mechanism.

[0012] As a further optimization of the detachable boarding and dismounting device for a bridge crane of the utility model: two lifting rings are provided on the upper side surface of the flat part, and the two lifting rings are respectively provided at two obliquely opposite top corners of the flat part.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model provides a plurality of detachably connected step plates arranged in a through groove opened at the center of the inclined portion, and a plurality of detachably connected bearing plates arranged in a maintenance square groove opened at the center of the flat portion, so that the staff can walk and move above the operating mechanism in a relatively safe and barrier-free environment, thereby enabling the staff to conveniently and relatively safely inspect the components of the operating mechanism above the operating mechanism.

[0015] Furthermore, after the load-bearing plate and the cargo step plate are disassembled, the exposed through grooves or inspection square grooves can be passed through by the staff, so that the staff can have direct contact with the components of the operating mechanism and realize the inspection and maintenance of the operating mechanism components. In the process of inspection and maintenance, the through grooves opened on the inclined portion and the inspection square grooves opened on the flat portion can both restrict the body of the staff to reduce the possibility of the staff falling from a height after falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is an enlarged structural diagram of point B of the present utility model;

[0019] Figure 4 It is a structural diagram of the working state of the utility model;

[0020] Markings in the figure: 1. Bridge; 2. Running mechanism; 3. Clamping frame; 301. Tightening screw; 401. Step plate; 402. Positioning plate; 403. Through slot; 501. Inclined portion; 502. Guardrail; 503. Flat portion; 504. Support leg; 6. Lifting ring; 701. Inspection square slot; 702. Load-bearing plate; 703. Positioning bar; 8. Stabilizing frame; 9. Locking assembly; 901. Long strip; 902. Torsion spring; 10. Rotating shaft; 11. Square slot. DETAILED DESCRIPTION

[0021] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with embodiments, but the content of the present invention is not limited to the following embodiments.

[0022] like Figure 1 and Figure 4 As shown, a detachable boarding and disembarking device for a bridge crane is the same as the prior art in that it includes a flat portion 503 with a certain height supported by support legs 504, so that the flat portion 503 can be installed above the operating mechanism 2, and the flat portion 503 is connected to an inclined portion 501, and a plurality of step plates 401 are provided on the inclined portion 501. The plurality of step plates 401 and the inclined portion 501 can be convenient for workers to step on, so that the workers can climb onto the flat portion 503 with a certain height, and guardrails 502 are provided at the edges of the surface of the flat portion 503 and the inclined portion 501. The two guardrails 502 are distributed along the length direction of the flat portion 503. The guardrails 502 can restrict workers passing through the inclined portion 501 and the flat portion 503, thereby reducing the possibility of workers falling from the edges of the inclined portion 501 and the flat portion 503.

[0023] like Figure 1-3As shown, different from the prior art, a maintenance square groove 701 is provided at the center of the flattening portion 503, and the maintenance square groove 701 is provided for detachable connection of multiple bearing plates 702, and a through groove 403 is provided at the center of the inclined portion 501, and the through groove 403 is provided for detachable connection of multiple step plates 401. The maintenance square groove 701 and the through groove 403 can create gaps between the multiple bearing plates 702 and the multiple step plates 401, thereby facilitating the staff to observe the various components of the operating mechanism 2 under the flattening portion 503, and the detachable connection setting can facilitate the staff to disassemble and then repair and maintain the operating mechanism 2 through the maintenance square groove 701 or the through groove 403.

[0024] The maintenance square groove 701 is opened along the length direction of the guardrail 502, and the maintenance square groove 701 is used to place multiple load-bearing plates 702 distributed along the length direction of the guardrail 502. The inner wall of the maintenance square groove 701 facing the edge of the flat portion 503 is fixed with a positioning strip 703, and the inner wall of the through groove 403 facing the guardrail 502 is provided with a positioning plate 402. The multiple positioning plates 402 correspond to the ends of the step plate 401. The two positioning strips 703 and the multiple positioning plates 402 are fixed to the inner wall of the through groove 403 facing the guardrail 502. A square groove 11 is provided on each plate 402, and the square groove 11 corresponds to the rotating shaft 10 set at the end of the step plate 401 or the load-bearing plate 702, and a locking assembly 9 is provided on the rotating shaft 10. The locking assembly 9 locks the load-bearing plate 702 into the maintenance square groove 701 or locks the step plate 401 into the through groove 403 by rotating the rotating shaft 10, thereby reducing the probability of the step plate 401 or the load-bearing plate 702 falling from a high altitude and causing injury to the staff.

[0025] The locking assembly 9 includes a long strip 901 provided at the upper and lower ends of the rotating shaft 10. The length of the long strip 901 is greater than the width of the square slot 11, and the length of the long strip 901 is less than the length of the square slot 11. When the length direction of the long strip 901 is aligned with the length direction of the square slot 11, the long strip 901 can be inserted into and pass through the square slot 11, and the long strip 901 is aligned with the width direction of the square slot 11 as the rotating shaft 10 rotates, so that the long strip 901 is limited to the bottom of the square slot 11. The upper long strip 901 can assist the staff Rotate the rotating shaft 10, and a torsion spring 902 is wrapped around the lower part of the rotating shaft 10. One end of the torsion spring 902 is fixedly connected to the lower long strip 901, and the other end of the torsion spring 902 is fixedly connected to the lower side of the supporting plate 702 or the step plate 401. The setting of the torsion spring 902 can enable the lower long strip 901 to maintain its length direction aligned with the width direction of the square groove 11, so as to further improve the locking effect of the supporting plate 702 or the step plate 401. At the same time, the staff only needs to complete the disassembly and assembly of the long strip 901 and the square groove 11 with a single rotation.

[0026] The supporting plate 702 and the step plate 401 are both made of embossed plates to maintain the friction between the workers and the step plate 401 when the workers step on it, thereby enabling the workers to climb onto the flat part 503 under the support of multiple step plates 401.

[0027] There are lifting rings 6 at both end points of the diagonally opposite corners of the surface of the flattening portion 503. The two lifting rings 6 can be connected to a crane to lift the flattening portion 503 and the inclined portion 501. Then, the staff can be assisted to lift the flattening portion 503 and the inclined portion 501 onto or off the running mechanism 2 to realize the disassembly and assembly of the flattening portion 503 and the inclined portion 501 above the running mechanism 2.

[0028] The inclined portion 501 is hinged with multiple clip-on frames 3 at the bottom toward the flat portion 503. After the inclined portion 501 and the flat portion 503 are placed on the operating mechanism 2, the clip-on frames 3 can be clipped with the operating mechanism 2 to achieve the connection between the inclined portion 501 and the operating mechanism 2. The end of the flat portion 503 facing away from the inclined portion 501 is provided with a stabilizing frame 8. The stabilizing frame 8 can be clipped with the operating mechanism 2 to position the flat portion 503 to achieve a stable connection between the operating mechanism 2 and the inclined portion 501 and the flat portion 503.

[0029] The clamping frame 3 is L-shaped, and the end of the vertical section of the clamping frame 3 is hinged to the inclined portion 501. The horizontal section of the clamping frame 3 is threadedly connected with a tightening screw 301. After the clamping frame 3 is rotated, it can be connected to the bottom of the operating mechanism 2. Then, the tightening screw 301 can be used to tighten the operating mechanism 2 to achieve convenient disassembly and installation of the inclined portion 501 and the operating mechanism 2.

[0030] The stabilizing frame 8 is U-shaped, with the depression of the stabilizing frame 8 distributed toward the flattening portion 503, and the upper end of the stabilizing frame 8 is fixed to the flattening portion 503 by screws, and the lower end of the stabilizing frame 8 can be connected to the bottom of the running mechanism 2, and then the end of the flattening portion 503 toward the stabilizing frame 8 will be positioned, and at the same time, the flattening portion 503 and the running mechanism 2 can be conveniently disassembled and installed.

[0031] like Figure 4 As shown, during specific use, the flattening portion 503 and the inclined portion 501 are lifted by the lifting ring 6 in cooperation with the hook of the crane, and then placed on the operating mechanism 2 sliding on the bridge frame 1. Then, the clamping frame 3 and the tightening screw 301 provided on the clamping frame 3 can be rotated to preliminarily position the inclined portion 501. Next, the staff can hold the stabilizing frame 8 and hook it to the operating mechanism 2, and use screws to fix the stabilizing frame 8 on the flattening portion 503. After that, the flattening portion 503 and the inclined portion 501 can be stably installed on the operating mechanism 2.

[0032] When inspecting the operating mechanism 2, the staff can climb onto the flat portion 503 through the step plate 401 set on the inclined portion 501, and then move on the multiple supporting plates 702 set on the flat portion 503 in a safer and barrier-free environment. In this process, the gaps between the multiple supporting plates 702 and the gaps between the multiple step plates 401 can be used to observe the operating mechanism 2 under the flat portion 503 and the inclined portion 501, thereby completing the inspection of the operating mechanism 2.

[0033] When inspecting and maintaining the operating mechanism 2, first, the upper long plate 901 is used to overcome the torsion force of the torsion spring 902 to rotate the rotating shaft 10, and then the lower long plate 901 is driven to rotate so that the length direction of the long plate 901 is aligned with the length direction of the square groove 11, so as to remove the lower long plate 901 from the square groove 11, and then the supporting plate 702 can be removed from the inspection square groove 701, or the step plate 401 can be removed from the positioning plate 402. The removed supporting plate 702 or step plate 401 can be placed on multiple supporting plates 702. Or the gap between multiple step plates 401 to achieve the positioning of the load-bearing plate 702 or the step plate 401, thereby reducing the possibility of falling objects from high altitude. After that, the staff can pass through the expanded maintenance square groove 701 or the through groove 403 to directly contact the corresponding operating mechanism 2 for maintenance and maintenance. During the maintenance process, the flat part 503, the maintenance square groove 701, the inclined part 501 and the through groove 403 are used to limit the body position of the staff to improve the work safety of the staff during the maintenance of the operating mechanism 2.

[0034] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A detachable boarding and alighting device for a bridge crane, comprising a flat portion (503) supported by vertically arranged support legs (504) and an inclined portion (501) connected to the flat portion (503), wherein both edges of the inclined portion (501) and the flat portion (503) in the width direction are provided with guardrails (502), characterized in that: A maintenance square groove (701) is provided at the center of the flat portion (503), and a plurality of detachable bearing plates (702) are evenly arranged in the maintenance square groove (701). A through groove (403) is provided at the center of the inclined portion (501), and a plurality of detachable step plates (401) are evenly arranged in the through groove (403).

2. A detachable boarding and alighting device for a bridge crane according to claim 1, characterized in that: Two positioning bars (703) are provided in the inspection square groove (701), and the two positioning bars (703) are respectively provided at two edges in the width direction of the inspection square groove (701). A square groove (11) corresponding to the end of the supporting plate (702) is opened on the positioning bar (703). A rotating shaft (10) is rotated at the end of the supporting plate (702), and a locking assembly (9) is provided on the rotating shaft (10).

3. The detachable boarding and alighting device for a bridge crane according to claim 1, characterized in that: Positioning plates (402) are provided on both edge inner walls in the width direction of the through slot (403), and a square slot (11) corresponding to the end of the step plate (401) is opened on the positioning plate (402). A rotating shaft (10) is rotated at the end of the step plate (401), and the rotating shaft (10) is provided on the locking assembly (9).

4. A detachable boarding and alighting device for a bridge crane according to claim 2 or 3, characterized in that: The locking assembly (9) comprises a long strip (901) provided at both ends of the rotating shaft (10), the length of the long strip (901) being greater than the width of the square slot (11), the length of the long strip (901) being less than the length of the square slot (11), and a torsion spring (902) for driving the long strip (901) to be flush with the width of the square slot (11) is surrounded by the lower part of the rotating shaft (10).

5. The detachable boarding and alighting device for a bridge crane according to claim 1, characterized in that: The bottom of the inclined portion (501) is rotatably provided with a plurality of clamping frames (3), and the length edge of the flat portion (503) away from the inclined portion (501) is provided with a stabilizing frame (8). The clamping frames (3) and the stabilizing frame (8) are used to position the inclined portion (501) and the flat portion (503) on the operating mechanism (2).

6. The detachable boarding and alighting device for a bridge crane according to claim 5, characterized in that: The clamping frame (3) is L-shaped, the end of the longer section of the clamping frame (3) is rotatably connected to the bottom of the inclined section (501), and the shorter section of the clamping frame (3) is threadedly connected with a tightening screw (301).

7. The detachable boarding and alighting device for a bridge crane according to claim 5, characterized in that: The stabilizing frame (8) is U-shaped, with the groove of the stabilizing frame (8) facing the inclined portion (501), the upper side of the stabilizing frame (8) being connected to the flat portion (503) via a thread, and the lower side of the stabilizing frame (8) being clamped to the operating mechanism (2).

8. The detachable boarding and alighting device for a bridge crane according to claim 1, characterized in that: Two hanging rings (6) are provided on the upper side of the flattening portion (503), and the two hanging rings (6) are respectively provided at two obliquely opposite top corners of the flattening portion (503).

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