High-altitude inspection and maintenance platform

Abstract

The utility model discloses a high-altitude inspection and maintenance platform, and relates to the technical field of crown block maintenance equipment. The maintenance platform comprises a maintenance platform body and two crown block main beams, driving mechanisms for driving the maintenance platform body to move are installed on the upper surfaces of the two crown block main beams, two lifting lugs are installed on the upper surface of the maintenance platform body, and the two lifting lugs are symmetrically distributed on the left side and the right side of the upper end of the maintenance platform body. The bottom end of the driving mechanism is detachably connected into the two sets of lifting lugs, a clamping groove is formed in the lower surface of the driving mechanism, a positioning mechanism for limiting the moving range of the driving mechanism is installed in the clamping groove of the driving mechanism, and protection mechanisms are installed on the front side and the rear side of the upper surface of the maintenance platform correspondingly. The driving mechanism is started to drive the maintenance platform and the worker to move upwards, so that the worker can detect the two groups of crown block main beams without moving the two groups of crown block main beams, and the worker can conveniently maintain and detect the two groups of crown block main beams at regular intervals.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead crane maintenance equipment, and particularly relates to an overhead inspection and maintenance platform. Background Technique

[0002] An overhead crane is a kind of lifting equipment widely used in various industrial and mining enterprises. Many times, due to production needs, a high-span overhead crane and a low-span overhead crane are installed in the same bay. The high-span overhead crane runs on the high-span track, and the low-span overhead crane runs on the low-span track.

[0003] For example, the utility model with the publication number CN217535201U discloses a fall prevention device for a multi-functional overhead crane tool maintenance platform, which includes a channel steel main body slideway with a "concave" shape structure. There are two main body slideways, and a longitudinal bracket is fixedly welded between the main body slideways. And the top of the longitudinal bracket is fixedly welded to the lower surface of the overhead crane main body. A moving trolley is arranged inside the main body slideway, and a fall arrester is installed directly below the moving trolley by using the installation hanging ring. This fall prevention device for the multi-functional overhead crane tool maintenance platform adopts a new structural design, so that during the use of the device, the fall arrester can move along with the operator by the sliding of the moving trolley inside the main body slideway, avoiding affecting the maintenance operation. And during the sliding process, the internal lubricating oil is automatically lubricated to the side rollers through the lubricating nozzle by the extrusion of the extrusion plate on the storage airbag, avoiding the large frictional force caused by rust from affecting the normal sliding.

[0004] During the implementation of the present application, it is found that this technology has the following problems: Most of the existing fall prevention devices for multi-functional overhead crane tool maintenance platforms install the moving trolley to the lower end of the overhead crane through longitudinal brackets and main body slideways to facilitate the maintenance of the overhead crane by workers. However, most of the moving trolleys inside the multi-functional overhead crane tool maintenance platforms are fixedly installed at the lower end of the overhead crane, making the moving trolley non-detachable, thus resulting in the non-reusability of the moving trolley, and therefore reducing the practicability of this equipment.

[0005] Therefore, an overhead inspection and maintenance platform is proposed Content of the Utility Model

[0006] The purpose of the present utility model is to solve the problem that most of the moving trolleys inside the multi-functional overhead crane tool maintenance platforms are fixedly installed at the lower end of the overhead crane, making the moving trolley non-detachable, thus resulting in the non-reusability of the moving trolley. The present utility model provides an overhead inspection and maintenance platform.

[0007] The present utility model specifically adopts the following technical solutions to achieve the above purpose:

[0008] An aerial inspection and maintenance platform includes a maintenance platform and two sets of overhead crane main beams. A driving mechanism for driving the maintenance platform to move is installed on the upper surfaces of the two sets of overhead crane main beams. Two lifting lugs are installed on the upper surface of the maintenance platform, and the positions of the two lifting lugs are symmetrically distributed on the left and right sides at the upper end of the maintenance platform. The bottom end of the driving mechanism is detachably connected to the interiors of the two lifting lugs. A card slot is formed on the lower surface of the driving mechanism, and a positioning mechanism for restricting the moving range of the driving mechanism is installed inside the card slot of the driving mechanism. Protective mechanisms are installed on the front and rear sides of the upper surface of the maintenance platform.

[0009] Further, the driving mechanism includes a top plate and two connecting plates. The top plate is placed on the upper surfaces of the two sets of overhead crane main beams. A connecting block is installed on the upper surface of the top plate. Two grooves are formed on the upper surface of the top plate. The two connecting plates are respectively slidably connected inside the two grooves of the top plate. Electric telescopic rods are installed on both the left and right sides of the connecting block, and the output ends of the two electric telescopic rods are respectively installed on the adjacent sides of the two connecting plates. Lifting arms are installed on the lower surfaces of the two connecting plates. The two lifting arms both include cable ropes, and the ends of the two cable ropes far away from the top plate are respectively detachably connected to the interiors of the two lifting lugs.

[0010] Further, the positioning mechanism includes a bidirectional threaded rod and a motor. A card slot is formed on the lower surface of the top plate. The left and right ends of the bidirectional threaded rod are rotatably connected inside the card slot of the top plate. The motor is installed on the outer surface of the top plate. A through hole is formed on one side of the top plate close to the motor. The output end of the motor passes through the through hole inside the top plate and is installed at one end of the bidirectional threaded rod close to the through hole inside the top plate. Two L-shaped limit plates are threadedly rotatably connected to the outside of the bidirectional threaded rod, and the tops of the two L-shaped limit plates are slidably connected inside the card slot of the top plate. The positions of the two bidirectional threaded rods are located between the two sets of overhead crane main beams.

[0011] Further, two protective fences are installed on the upper surface of the maintenance platform, and the positions of the two protective fences are symmetrically distributed on the front and rear sides at the upper end of the maintenance platform.

[0012] Further, both of the two protective mechanisms include fixing plates. The opposite sides of the two fixing plates are respectively installed on the adjacent sides of the two protective fences. Grooves are formed on the adjacent sides of the two fixing plates. Fixed rods are installed inside the grooves of the two fixing plates. Sliders are slidably connected to the outer surfaces of the two fixed rods. Elastic straps are installed on the adjacent sides of the two sliders. Hooks are arranged at the adjacent ends of the two elastic straps.

[0013] Further, anti-slip patterns are formed on the upper surface of the maintenance platform.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By starting two groups to drive two groups to move, the distance between the two groups can be adjusted. Then, by placing it on the upper surfaces of the two groups, it can be disassembled. And the connection method between the two groups and the two groups is a detachable connection, so that it is convenient for the staff to disassemble the device and install it on other models of overhead cranes for use. Therefore, the applicable range of the device is expanded.

[0016] 2. By pulling two groups of hooks and clamping the two groups of hooks inside the five-point safety belt worn by the staff themselves, the two groups of elastic straps and the two groups of hooks limit the moving position of the staff at the upper end of the maintenance platform, thus minimizing the risk of the staff slipping from the upper end of the maintenance platform to the ground when the maintenance platform jolts and shakes. Therefore, the safety of the staff standing at the upper end of the maintenance platform is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic side structure diagram of the present utility model;

[0018] Figure 2 is a schematic top structure diagram of the present utility model;

[0019] Figure 3 is a schematic bottom structure diagram of the driving mechanism of the present utility model;

[0020] Figure 4 is a schematic side view of the protection mechanism of the present utility model;

[0021] Reference numerals: 1, maintenance platform; 2, boom; 3, cable; 4, lifting lug; 5, overhead crane main beam; 6, guardrail; 7, protection mechanism; 701, fixing plate; 702, fixing rod; 703, slider; 704, elastic strap; 705, hook; 8, driving mechanism; 801, top plate; 802, connecting block; 803, electric telescopic rod; 804, connecting plate; 9, positioning mechanism; 901, bidirectional threaded rod; 902, L-shaped limiting plate; 903, motor; 10, anti-slip pattern. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0023] Accordingly, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0024] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0026] As Figures 1 to 4 shown, an aerial inspection and maintenance platform includes a maintenance platform 1 and two groups of overhead crane main beams 5. A driving mechanism 8 for driving the maintenance platform 1 to move is installed on the upper surfaces of the two groups of overhead crane main beams 5. Two groups of lifting lugs 4 are installed on the upper surface of the maintenance platform 1. The positions of the two groups of lifting lugs 4 are symmetrically distributed on the left and right sides at the upper end of the maintenance platform 1. The bottom end of the driving mechanism 8 is detachably connected to the inside of the two groups of lifting lugs 4. A card slot is formed on the lower surface of the driving mechanism 8. A positioning mechanism 9 for restricting the moving range of the driving mechanism 8 is installed inside the card slot of the driving mechanism 8. Protective mechanisms 7 are installed on the front and rear sides of the upper surface of the maintenance platform 1; specifically, by starting the driving mechanism 8 to drive the maintenance platform 1 and the staff to move upward, the staff can detect the two groups of overhead crane main beams 5 without moving the two groups of overhead crane main beams 5. Therefore, it is convenient for the staff to regularly maintain and detect the two groups of overhead crane main beams 5.

[0027] Meanwhile, by abutting against one side adjacent to the two main trolley beams 5 through the positioning mechanism 9, the positioning mechanism 9 restricts the moving position of the driving mechanism 8 on the upper end of the maintenance platform 1, thereby minimizing the movement of the driving mechanism 8 after installation. By clamping the two protective mechanisms 7 inside the five-point seat belts worn by the staff themselves, the two protective mechanisms 7 restrict the moving position of the staff on the upper end of the maintenance platform 1, thereby minimizing the risk of the staff slipping from the upper end of the maintenance platform 1 to the ground when the maintenance platform 1 jolts and shakes. Therefore, the safety of the staff standing on the upper end of the maintenance platform 1 is improved.

[0028] As Figures 1 to 3 shown, the driving mechanism 8 includes a top plate 801 and two connecting plates 804. The top plate 801 is placed on the upper surfaces of the two main trolley beams 5. A connecting block 802 is installed on the upper surface of the top plate 801. Two grooves are formed on the upper surface of the top plate 801. The two connecting plates 804 are respectively slidably connected inside the two grooves of the top plate 801. Electric telescopic rods 803 are installed on both the left and right sides of the connecting block 802. The output ends of the two electric telescopic rods 803 are respectively installed on one side adjacent to the two connecting plates 804. Suspension arms 2 are installed on the lower surfaces of the two connecting plates 804. Each of the two suspension arms 2 includes a cable 3. The ends of the two cables 3 away from the top plate 801 are respectively detachably connected to the interiors of the two lifting lugs 4. Specifically, after the staff stands on the upper end of the maintenance platform 1, by starting the two suspension arms 2 to drive the two cables 3 to drag the maintenance platform 1 upward, the maintenance platform 1 drives the staff to move between the two main trolley beams 5, thereby facilitating the staff to maintain and detect the two main trolley beams 5.

[0029] Meanwhile, by starting the two electric telescopic rods 803 to push the two connecting plates 804 to drive the two suspension arms 2 to move, the distance between the two suspension arms 2 is adjusted, so that the two suspension arms 2 can be clamped on the front and rear sides of the two main trolley beams 5 with various distances during use. Then, by placing the top plate 801 on the upper surfaces of the two main trolley beams 5, the driving mechanism 8 can be disassembled. And the connection between the two cables 3 and the two lifting lugs 4 is a detachable connection, thereby facilitating the staff to disassemble the device and install it on other types of overhead cranes for use. Therefore, the applicable range of the device is expanded.

[0030] As Figure 3As shown in the figure, the positioning mechanism 9 includes a bidirectional threaded rod 901 and a motor 903. A clamping groove is provided on the lower surface of the top plate 801. The left and right ends of the bidirectional threaded rod 901 are rotatably connected inside the clamping groove of the top plate 801. The motor 903 is installed on the outer surface of the top plate 801. A through hole is provided on one side of the top plate 801 close to the motor 903. The output end of the motor 903 passes through the through hole inside the top plate 801 and is installed at one end of the bidirectional threaded rod 901 close to the through hole inside the top plate 801. Two groups of L-shaped limit plates 902 are rotationally connected to the outer thread of the bidirectional threaded rod 901. The tops of the two groups of L-shaped limit plates 902 are slidably connected inside the clamping groove of the top plate 801. The positions of the two groups of bidirectional threaded rods 901 are located between the two main girders 5 of the overhead crane; specifically, when the adjacent sides of the two boom arms 2 are respectively clamped to the front and rear sides of the two main girders 5 of the overhead crane, by starting the motor 903 to drive the bidirectional threaded rod 901 to rotate inside the clamping groove of the top plate 801, the inner side walls of the two groups of L-shaped limit plates 902 are respectively abutted against the adjacent sides of the two main girders 5, so that the two groups of L-shaped limit plates 902 limit the moving position of the top plate 801 on the upper ends of the two main girders 5, thus minimizing the shaking of the top plate 801 on the upper surface of the two main girders 5 during use. Therefore, the stability and safety of the maintenance platform 1 during use are improved.

[0031] At the same time, by starting the motor 903, the positions of the two groups of L-shaped limit plates 902 can be adjusted, so that the distance between the two groups of L-shaped limit plates 902 can be adjusted according to the distance between the two main girders inside various overhead cranes, thus minimizing the situation where the distance between the two groups of L-shaped limit plates 902 is greater than the distance between the two main girders 5, resulting in the top plate 801 being unable to be installed on the upper surface of the two main girders 5. Therefore, the applicable range of this equipment is expanded.

[0032] As Figure 1 、 Figure 2 and Figure 4 shown, two groups of guardrails 6 are installed on the upper surface of the maintenance platform 1. The positions of the two groups of guardrails 6 are symmetrically distributed on the front and rear sides of the upper end of the maintenance platform 1; specifically, the two groups of guardrails 6 limit the forward and backward movement positions of the staff on the upper end of the maintenance platform 1, and the two groups of lifting lugs 4 limit the left and right movement positions of the staff on the upper end of the maintenance platform 1, so that the two groups of lifting lugs 4 and the two groups of maintenance platforms 1 form a rectangular guardrail on the upper end of the maintenance platform 1 during use. Therefore, the safety of the staff standing on the upper end of the maintenance platform 1 during work is improved.

[0033] As Figure 1 、 Figure 2 and Figure 4As shown, the two groups of protection mechanisms 7 both include a fixing plate 701, and the opposite sides of the two groups of fixing plates 701 are respectively installed on the adjacent sides of the two groups of guardrails 6, and the adjacent sides of the two groups of fixing plates 701 are provided with grooves, and the inner sides of the grooves of the two groups of fixing plates 701 are both provided with fixing rods 702, and the outer surfaces of the two groups of fixing rods 702 are both slidably connected with sliders 703, and the adjacent sides of the two groups of sliders 703 are both provided with elastic straps 704, and the adjacent ends of the two groups of elastic straps 704 are both provided with hooks 705; specifically, when the staff stands on the upper end of the maintenance platform 1, by pulling the two groups of hooks 705, the two groups of hooks 705 are clamped into the inside of the five-point safety belt worn by the staff themselves, so that the two groups of elastic straps 704 and the two groups of hooks 705 limit the moving position of the staff on the upper end of the maintenance platform 1, so as to avoid the staff from sliding from the upper end of the maintenance platform 1 to the ground when the maintenance platform 1 is bumpy and shaking, thereby improving the safety of the staff when standing on the upper end of the maintenance platform 1.

[0034] At the same time, two sets of sliders 703 are respectively slidably connected to the outer surfaces of the two sets of fixed rods 702, so that the staff can drive the two sets of elastic straps 704 and the two sets of hooks 705 to move synchronously by pushing the two sets of sliders 703, and the positions of the two sets of elastic straps 704 and the two sets of hooks 705 can be automatically adjusted according to the moving positions of the staff, thereby expanding the movement range of the staff after wearing the two sets of hooks 705, and thus avoiding the two sets of protection mechanisms 7 from affecting the staff's normal inspection and maintenance of the two sets of overhead crane main beams 5.

[0035] like Figure 1 As shown, the upper surface of the maintenance platform 1 is provided with anti-skid grooves 10; specifically, when a worker stands on the upper surface of the maintenance platform 1, the anti-skid grooves 10 increase the friction between the worker's feet and the maintenance platform 1, making it difficult for the worker to slip when standing on the upper surface of the maintenance platform 1, thereby improving the stability of the worker when standing on the upper end of the maintenance platform 1.

[0036] In summary: By activating two sets of electric telescopic rods 803 to push two sets of connecting plates 804 to drive two sets of jibs 2 to move, the distance between the two sets of jibs 2 is adjusted so that the two sets of jibs 2 can be clamped on the front and rear sides of two sets of overhead crane main girders 5 with various distances during use. Then, the top plate 801 is placed on the upper surface of the two sets of overhead crane main girders 5, enabling the drive mechanism 8 to be disassembled. Moreover, the connection between the two sets of cables 3 and the two sets of lifting lugs 4 is a detachable connection, facilitating the staff to disassemble the device and install it on other models of overhead cranes for use, thus expanding the applicable range of the device. By activating the motor 903 to drive the bidirectional threaded rod 901 to rotate inside the card slot of the top plate 801, the inner walls of the two sets of L-shaped limit plates 902 are respectively abutted against the adjacent sides of the two sets of overhead crane main girders 5, restricting the moving position of the top plate 801 on the upper ends of the two sets of overhead crane main girders 5, thereby minimizing the shaking of the top plate 801 on the upper surface of the two sets of overhead crane main girders 5 during use.

[0037] Meanwhile, by pulling the two sets of hooks 705 and clamping the two sets of hooks 705 inside the five-point safety belts worn by the staff themselves, the two sets of elastic straps 704 and the two sets of hooks 705 restrict the moving position of the staff on the upper end of the maintenance platform 1, thus minimizing the risk of the staff slipping from the upper end of the maintenance platform 1 to the ground when the maintenance platform 1 jolts and shakes, thereby improving the safety of the staff standing on the upper end of the maintenance platform 1.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-altitude inspection and maintenance platform, comprising a maintenance platform (1) and two sets of overhead crane main beams (5), characterized in that: A driving mechanism (8) for driving the maintenance platform (1) to move is installed on the upper surface of the two groups of overhead crane main beams (5); two groups of lifting ears (4) are installed on the upper surface of the maintenance platform (1); the positions of the two groups of lifting ears (4) are symmetrically distributed on the left and right sides of the upper end of the maintenance platform (1); the bottom end of the driving mechanism (8) is detachably connected to the inside of the two groups of lifting ears (4); a slot is provided on the lower surface of the driving mechanism (8); a positioning mechanism (9) for limiting the moving range of the driving mechanism (8) is installed inside the slot of the driving mechanism (8); and protective mechanisms (7) are installed on both the front and rear sides of the upper surface of the maintenance platform (1).

2. A high altitude inspection and maintenance platform according to claim 1, characterized in that: The driving mechanism (8) comprises a top plate (801) and two groups of connecting plates (804), wherein the top plate (801) is placed on the upper surfaces of the two groups of overhead crane main beams (5), a connecting block (802) is installed on the upper surface of the top plate (801), two groups of grooves are opened on the upper surface of the top plate (801), and the two groups of connecting plates (804) are respectively slidably connected to the inside of the two groups of grooves of the top plate (801), and electric telescopic rods (803) are installed on the left and right sides of the connecting block (802), and the output ends of the two groups of electric telescopic rods (803) are respectively installed on the adjacent sides of the two groups of connecting plates (804), and the lower surfaces of the two groups of connecting plates (804) are respectively installed with a boom (2), and the two groups of booms (2) include cables (3), and the ends of the two groups of cables (3) away from the top plate (801) are respectively disassembled and connected to the inside of the two groups of lifting ears (4).

3. A high altitude inspection and maintenance platform according to claim 2, characterized in that: The positioning mechanism (9) comprises a bidirectional threaded rod (901) and a motor (903); a slot is provided on the lower surface of the top plate (801); the left and right ends of the bidirectional threaded rod (901) are rotatably connected to the inside of the slot of the top plate (801); the motor (903) is mounted on the outer surface of the top plate (801); a through hole is provided on one side of the top plate (801) close to the motor (903); the output end of the motor (903) passes through the internal through hole of the top plate (801) and is mounted on one end of the bidirectional threaded rod (901) close to the internal through hole of the top plate (801); the external threads of the bidirectional threaded rod (901) are rotatably connected to two groups of L-shaped limiting plates (902); the top ends of the two groups of L-shaped limiting plates (902) are slidably connected to the inside of the slot of the top plate (801); the two groups of bidirectional threaded rods (901) are located between the two groups of overhead crane main beams (5).

4. The high-altitude inspection and maintenance platform according to claim 1, characterized in that: Two groups of guardrails (6) are installed on the upper surface of the maintenance platform (1), and the two groups of guardrails (6) are symmetrically located at the front and rear sides of the upper end of the maintenance platform (1).

5. The high altitude inspection and maintenance platform according to claim 4, characterized in that: The two groups of protection mechanisms (7) each comprise a fixing plate (701), the opposite sides of the two groups of fixing plates (701) are respectively mounted on the adjacent sides of the two groups of protection rails (6), the adjacent sides of the two groups of fixing plates (701) are provided with a groove, the grooves of the two groups of fixing plates (701) are internally provided with fixing rods (702), the outer surfaces of the two groups of fixing rods (702) are slidably connected with sliders (703), the adjacent sides of the two groups of sliders (703) are each provided with an elastic band (704), and the adjacent ends of the two groups of elastic bands (704) are each provided with a hook (705).

6. The high-altitude inspection and maintenance platform according to claim 1, characterized in that: The upper surface of the maintenance platform (1) is provided with anti-slip grooves (10).

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