Bridge type aerial work platform for closed construction of belt conveying vestibule

Abstract

The invention discloses a bridge type aerial work platform for closed construction of a belt conveying vestibule. The bridge type aerial work platform comprises a top adjustable frame, a movable platform body and a crawler belt device. A frame body of the top adjustable frame is provided with a gear rack transmission mechanism driven by a motor, and rack end faces at two ends of the frame body are provided with connecting plates. The movable platform is composed of a tower-shaped hanging bracket, a vertical frame and a bottom plate which are arranged in sequence, the tower-shaped hanging bracket is hinged to the connecting plate, the side face of the vertical frame is provided with a guardrail type crawling ladder and a fence, and the middle of the vertical frame is provided with a springboard support; the crawler device is arranged on the bottom face of the frame body through a wheel carrier and a belt wheel, and a crawler motor drives the belt wheel to rotate. The operation platform overcomes the defects of traditional closed construction operation, is convenient and fast to install and easy and convenient to operate, can safely, intelligently and efficiently achieve closed construction of the belt conveying vestibule, improves the operation efficiency, and eliminates potential safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of aerial work equipment, and particularly to a bridge-type aerial work platform for the closed construction of a belt conveyor corridor. Background Art

[0002] In the iron-making front area of metallurgical enterprises, the raw material transportation method is usually mainly by belt conveyor. A large amount of dust and dust are generated during the transportation of the belt conveyor, which has a great impact on the environment. To avoid dust escape, it is necessary to fully enclose the belt conveyor corridor.

[0003] For the closed construction of the belt conveyor corridor, it is usually necessary to set up a scaffolding along the corridor. The process is cumbersome, the construction period is long, the workload is large, the high-altitude operation time is long, and there are great safety risks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a bridge-type aerial work platform for the closed construction of a belt conveyor corridor. This work platform overcomes the defects of traditional closed construction operations, is easy to install and operate, can safely, intelligently and efficiently realize the closed construction of the belt conveyor corridor, improve the operation efficiency, and eliminate potential safety hazards.

[0005] To solve the above technical problem, the bridge-type aerial work platform for the closed construction of a belt conveyor corridor of the present invention includes a top adjustable frame, a movable platform and a crawler device; The top adjustable frame includes a frame body, racks, gears, connecting plates, drive motors and limit stops. The racks are in two sections and are respectively movably arranged on both sides of the frame body. The gears are centrally arranged on both sides of the frame body and mesh with the two sections of racks 12. The drive motors are arranged on both sides of the frame body and drive the gears to rotate. The rotation of the gears drives the two sections of racks to contract or extend. The limit stops are arranged on the frame body to limit the two sections of racks from disengaging from the gears. The connecting plates are arranged on the end faces of the racks at both ends of the frame body; The movable platform includes a tower-shaped hanger, a vertical frame, a gangplank support, a guardrail-type ladder, a fence and a bottom plate. The top end of the tower-shaped hanger is hinged to the middle of the connecting plate of the top adjustable frame. The vertical frame is arranged at the bottom of the tower-shaped hanger. The gangplank support is arranged in the middle of the vertical frame. The guardrail-type ladder is arranged on the front and rear sides of the vertical frame. The fence is arranged on the outer side of the vertical frame. The bottom plate is arranged on the bottom surface of the vertical frame; The crawler device includes a wheel frame, belt wheels and a crawler motor. The wheel frame is arranged on the bottom surface of the frame body of the top adjustable frame. The belt wheels are arranged at intervals on the wheel frame. The crawler motor is arranged on the wheel frame and drives the belt wheels to rotate.

[0006] Further, rollers are arranged at intervals on the bottom surface of the frame body of the top adjustable frame.

[0007] Further, a flap is hinged to the inner side of the bottom plate of the movable platform.

[0008] Further, a kickboard is provided around the bottom plate of the movable platform.

[0009] Further, the top end of the tower-shaped hanging bracket of the movable platform is hinged to the middle of the connecting plate of the top adjustable frame through an open-hole cylindrical pin, and an opening pin is inserted into the opening of the open-hole cylindrical pin to lock the position of the open-hole cylindrical pin. Since the bridge-type aerial work platform for the closed construction of the belt conveying corridor of the present invention adopts the above technical solution, that is, the platform includes a top adjustable frame, a movable platform and a crawler device; a gear-rack transmission mechanism driven by a motor is arranged on the frame body of the top adjustable frame, and connecting plates are provided on the end faces of the racks at both ends of the frame body; the movable platform is composed of a tower-shaped hanging bracket, a vertical frame and a bottom plate arranged in sequence, the tower-shaped hanging bracket is hinged to the connecting plate, guardrail-type ladders and fences are respectively provided on the sides of the vertical frame, and a springboard support is provided in the middle; the crawler device is composed of a wheel frame and belt wheels arranged on the bottom surface of the frame body, and the crawler motor drives the belt wheels to rotate. This work platform overcomes the defects of traditional closed construction operations, is easy to install and operate, can safely, intelligently and efficiently realize the closed construction of the belt conveying corridor, improve work efficiency and eliminate potential safety hazards. Brief Description of the Drawings

[0010] The following further describes the present invention in detail in conjunction with the drawings and embodiments: Figure 1 It is a schematic diagram of the bridge-type aerial work platform for the closed construction of the belt conveying corridor of the present invention; Figure 2 It is a schematic diagram of the arrangement of gears, limit stops and rollers of the top adjustable frame in this work platform; Figure 3 It is a schematic diagram of the connection between the connecting plate of the top adjustable frame and the tower-shaped hanging bracket in this work platform. Detailed Embodiments

[0011] The embodiments are as Figure 1 and Figure 2 shown, the bridge-type aerial work platform for the closed construction of the belt conveying corridor of the present invention includes a top adjustable frame 1, a movable platform 2 and a crawler device 3; The top adjustable frame 1 includes a frame body 11, a rack 12, a gear 13, a connecting plate 14, a driving motor 15 and a limit stop 16. The rack 12 is divided into two sections and is respectively movably arranged on both sides of the frame body 11. The gear 13 is centrally arranged on both sides of the frame body 11 and meshes with the two sections of the rack 12. The driving motor 15 is arranged on both sides of the frame body 11 and drives the gear 13 to rotate. The rotation of the gear 13 drives the two sections of the rack 12 to contract or extend. The limit stop 16 is arranged on the frame body 11 to prevent the two sections of the rack 12 from disengaging from the gear 13. The connecting plate 14 is arranged on the end faces of the rack 12 at both ends of the frame body 11. The movable platform 2 includes a tower-shaped hanger 21, a vertical frame 22, a springboard support 23, a guardrail-type ladder 24, a fence 25 and a bottom plate 26. The top end of the tower-shaped hanger 21 is hinged to the middle of the connecting plate 14 of the top adjustable frame 1. The vertical frame 22 is arranged at the bottom of the tower-shaped hanger 21. The springboard support 23 is arranged in the middle of the vertical frame 22. The guardrail-type ladder 24 is arranged on the front and rear sides of the vertical frame 22. The fence 25 is arranged on the outer side of the vertical frame 22. The bottom plate 26 is arranged on the bottom surface of the vertical frame 22. The overall shape of the movable platform is a cuboid. The dimension in the length direction is determined according to the dimensions on both sides of the belt conveyor corridor, and it is required to meet the construction needs. The dimension in the width direction is required to meet the need for a person to pass freely. A flap is provided on the side close to the construction surface. The flap is connected to the bottom plate at the bottom of the movable platform by a hinge. Its rotation radius is similar to the length of the outer eaves at the top of the belt conveyor corridor, and it is required to meet the strength requirement as a fulcrum when the construction personnel apply force. A fence is provided on the vertical frame on the side farther from the construction surface, and it is required to ensure the strength of the fence to meet the safety protection function. Guardrail-type ladders are provided on both sides of the movable platform, and it is required to meet the need for personnel to go up and down. In the middle area of the vertical frame in the length direction corresponding to both sides of the corridor, springboard supports are provided for erecting springboards, which are adjusted according to the construction positions on both sides of the belt conveyor corridor to facilitate construction. The top adjustable frame 1 is provided with two sections of the rack 12 on both sides of the frame body 11 respectively. The two sections of the rack 12 mesh with the centrally arranged gear 13. The gear 13 is driven by the driving motor 15 to rotate, thereby driving the two sections of the rack 12 to contract or extend, and then driving the whole movable platform 2 to move through the connecting plate 14. The crawler device 3 includes a wheel frame 31, a belt wheel 32 and a crawler motor 33. The wheel frame 31 is arranged on the bottom surface of the frame body 11 of the top adjustable frame 1. The belt wheels 32 are arranged at intervals on the wheel frame 31. The crawler motor 33 is arranged on the wheel frame 31 and drives the belt wheels 32 to rotate.

[0012] Preferably, rollers 17 are provided at intervals on the bottom surface of the frame body 11 of the top adjustable frame 1. The rollers are used to assist the movement of the top adjustable frame on the roof of the belt conveying corridor, reducing the driving resistance of the crawler device.

[0013] Preferably, a flap 27 is hinged to the inner side of the bottom plate 26 of the movable platform 2. The flap is used to expand the working area, suitable for the construction of the eaves of the belt conveying corridor, and extending the construction working area.

[0014] Preferably, a kickboard 28 is provided around the bottom plate 26 of the movable platform 2. The kickboard encloses the bottom plate to prevent small tools from slipping when falling onto the bottom plate during construction operations, ensuring the safety of construction operations.

[0015] Preferably, as Figure 3 shown, the top end of the tower-shaped hanger 21 of the movable platform 2 is hinged to the middle of the connecting plate 14 of the top adjustable frame 1 through an open-hole cylindrical pin 4, and a split pin 5 is inserted into the open hole of the open-hole cylindrical pin 4 to lock the position of the open-hole cylindrical pin 4, playing a role in preventing detachment. The tower-shaped hanger and the top adjustable frame are connected by an open-hole cylindrical pin to ensure the reliability of the connection. And under the action of the self-weight of the movable platform, the movable platform can always be kept in a vertical position, facilitating construction.

[0016] When this operation platform is actually applied, the top adjustable frame, the movable platform and the crawler device are assembled on the ground, and then the whole operation platform is hoisted onto the roof of the belt conveying corridor by a crane. According to the width of the roof of the belt conveying corridor, the top adjustable frame makes the rack extend or contract under the drive of the rack, gear and drive motor, so that the movable platforms at both ends of the top adjustable frame are adjusted to the working width. The gangplank is set on the gangplank support of the movable platform to form a standing position for construction operations, and then the closed construction of the belt conveying corridor can be carried out; when the construction of this area is completed, the top adjustable frame is driven by the crawler device to move along the roof of the belt conveying corridor to the next construction area until all the closed construction operations are completed; after the construction is completed, the whole operation platform is hoisted to the ground.

[0017] This operation platform can carry out construction operations on both sides of the belt conveying corridor at the same time. The construction operation position can be intelligently adjusted through the top adjustable frame and the crawler device, reducing the labor intensity, improving the construction operation efficiency, and eliminating the potential safety hazards of construction operations. And this operation platform is simple to manufacture and easy to implement, avoiding various restrictive factors and ensuring the quality of construction operations.

Claims

1. A bridge-type aerial work platform for the closed construction of a belt conveyor corridor, characterized in that: It includes a top adjustable frame, a movable platform and a crawler device; The top adjustable frame includes a frame body, racks, gears, connecting plates, drive motors and limit stops. The racks are in two sections and are respectively movably arranged on both sides of the frame body. The gears are centrally arranged on both sides of the frame body and mesh with the two sections of racks 12. The drive motors are arranged on both sides of the frame body and drive the gears to rotate. The rotation of the gears drives the two sections of racks to contract or extend. The limit stops are arranged on the frame body to prevent the two sections of racks from disengaging from the gears. The connecting plates are arranged on the end faces of the racks at both ends of the frame body; The movable platform includes a tower-shaped hanger, a vertical frame, a gangplank support, a guardrail-type climbing ladder, a fence and a bottom plate. The top end of the tower-shaped hanger is hinged to the middle of the connecting plate of the top adjustable frame. The vertical frame is arranged at the bottom of the tower-shaped hanger. The gangplank support is arranged in the middle of the vertical frame. The guardrail-type climbing ladder is arranged on the front and rear sides of the vertical frame. The fence is arranged on the outer side of the vertical frame. The bottom plate is arranged on the bottom surface of the vertical frame; The crawler device includes a wheel frame, belt wheels and a crawler motor. The wheel frame is arranged on the bottom surface of the frame body of the top adjustable frame. The belt wheels are arranged at intervals on the wheel frame. The crawler motor is arranged on the wheel frame and drives the belt wheels to rotate.

2. The bridge-type aerial work platform for the closed construction of a belt conveyor corridor according to claim 1, characterized in that: Rollers are arranged at intervals on the bottom surface of the frame body of the top adjustable frame.

3. The bridge-type aerial work platform for the closed construction of the belt conveyor corridor according to claim 1, characterized in that: A flap is hinged to the inner side surface of the bottom plate of the movable platform.

4. The bridge-type aerial work platform for the closed construction of a belt conveyor corridor according to claim 1, characterized in that: Kick plates are arranged around the bottom plate of the movable platform.

5. The bridge-type aerial work platform for the closed construction of a belt conveyor corridor according to claim 1, wherein: The top end of the tower-shaped hanger of the movable platform is hinged to the middle of the connecting plate of the top adjustable frame through a perforated cylindrical pin, and an opening pin is inserted into the opening of the perforated cylindrical pin to lock the position of the perforated cylindrical pin.

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