Hoisting device attached to cantilever beam

Abstract

A hoisting device attached to a cantilever beam comprises a horizontal base plate, a winch is arranged on the lower side of the base plate, and a left vertical plate and a right vertical plate are arranged on the upper side of the base plate; two first gears which are arranged in a front-back spaced mode are arranged on the right side of the left vertical plate, second gears which are arranged in a front-back spaced mode are arranged between the two first gears, and the first gear and the second gear on the front-back same side are meshed; an output shaft of the driving motor horizontally penetrates through the left vertical plate rightwards and is provided with a third gear, the third gear is meshed with the two second gears at the same time, and first rollers are arranged on the right sides of the two first gears. A second roller matched with the first roller is arranged on the left side of the right vertical plate, a power source and a controller are arranged on the outer side of the left vertical plate or the right vertical plate, and the winch and the driving motor are connected with the power source through the controller. The device can replace a tower crane for hoisting operation after construction of a building main body structure is completed, the tower crane can be dismantled in advance, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to a hoisting device attached to a cantilever beam. Background Art

[0002] Tower cranes, also known as "tower cranes," are the most commonly used lifting equipment on construction sites. They are constructed in sections (referred to as "standard sections") and are used to lift materials such as rebar, wood planks, concrete, and steel pipes. Tower cranes are an essential piece of equipment on construction sites. They are typically secured and load-bearing by cantilevered I-beams attached to the building structure. See Chinese Patent CN201710364714.4 for their structure.

[0003] In construction sites, after the main structure of the building is completed, the frequency of tower crane use will be significantly reduced. Moreover, after the main structure is completed, wall masonry, exterior wall painting, external insulation construction and other operations are required before the external frame can be dismantled. The tower crane will be idle for about 4 months. During this period, each tower crane will incur a lot of expenses, which is not cost-effective. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hoisting device attached to a cantilever beam, which can replace the tower crane for hoisting operations after the construction of the main structure of the building is completed, and the tower crane can be dismantled in advance to save costs.

[0005] In order to solve the above technical problems, the utility model provides a hoisting device attached to a cantilever beam;

[0006] It includes a horizontally arranged long strip base plate with a longitudinal direction running forward and backward, a horizontally arranged winch with an axial direction running forward and backward is provided on the lower side of the base plate, and a left vertical plate and a right vertical plate are provided on the upper side of the base plate, which are arranged symmetrically on the left and right and have longitudinal directions running forward and backward;

[0007] The left vertical plate is provided with two first gears arranged at a front-to-back interval on the right side of the left vertical plate, and the two first gears are connected to the left vertical plate through the first wheel axle, and the axial directions of the two first wheel axles are both left and right. A second gear arranged at a front-to-back interval is provided on the right side of the left vertical plate corresponding to the position between the two first gears, and the two second gears are connected to the left vertical plate through the second wheel axle, and the axial directions of the two second gears are both left and right. The second gear located at the front side is meshed with the first gear located at the front, and the second gear located at the rear is meshed with the first gear located at the rear. A driving motor is provided at the left side surface position of the left vertical plate corresponding to the position between the two second gears, and the output shaft of the driving motor extends horizontally to the right. The right end of the output shaft of the driving motor passes through the left vertical plate and is coaxially installed with a third gear. The third gear is located between the front and back of the two second gears and is meshed with the two second gears at the same time. A first roller coaxially connected to the corresponding first gear is provided on the right side of the two first gears;

[0008] A second roller matching the first roller is provided on the left side of the right vertical plate and opposite to each first roller. Each second roller is connected to the right vertical plate through a third wheel shaft. The axis direction of the third wheel shaft is left-right. A gap is left-right between the first roller and the second roller opposite to each other in the left-right direction.

[0009] A power supply and a controller are provided on the left side of the left vertical plate or the right side of the right vertical plate, and the hoist and the driving motor are both connected to the power supply through the controller.

[0010] For the purpose of simple explanation, the hoisting device attached to the cantilever beam described in the present invention is referred to as this device for short.

[0011] The usage and advantages of this device: After the tower crane is dismantled, the cantilever beam (I-beam) used to connect the tower crane still extends to the facade of the building. The web of the I-beam is vertical, and the two wing plates of the I-beam are respectively located at the upper and lower ends of the web. When the device is installed, the left plate and the right plate are respectively clamped on the left and right sides of the web, so that the two first rollers and the two second rollers are both placed on the wing plates on the lower side of the I-beam. The controller can be wirelessly remote controlled or wire controlled. At this time, the controller controls the forward and reverse rotation of the drive motor to control the device to move forward and backward along the length of the I-beam. The building materials are connected to the winch rope, and the winch is controlled by the controller to reel in and unreel, so that the building materials can be hoisted completely. This device uses the cantilever beam (I-beam) remaining after the tower crane is dismantled as a track instead of the tower crane for lifting operations, so that the tower crane can be dismantled in advance, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the main view of the device.

[0013] Figure 2 It is the left side view of the device.

[0014] Figure 3 It is a right view of the left vertical plate in this device.

[0015] Figure 4 It is a left view of the right vertical plate in this device. DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 4 , a lifting device attached to a cantilever beam;

[0017] It comprises a horizontally arranged long strip base plate 1 with its longitudinal direction running forward and backward, a horizontally arranged hoist 2 with its axial direction running forward and backward is provided on the lower side of the base plate 1 (the rope on the hoist 2 is not shown), and a left vertical plate 3 and a right vertical plate 4 are provided on the upper side of the base plate 1, which are arranged symmetrically on both sides and have their longitudinal directions running forward and backward;

[0018] The right side of the left vertical plate 3 is provided with two first gears 31 spaced apart from each other. The two first gears 31 are connected to the left vertical plate 3 through a first wheel shaft 311. The axis directions of the two first wheel shafts 311 are both left and right. A second gear 32 spaced apart from each other is provided on the right side of the left vertical plate 3, corresponding to the position between the two first gears 31. The two second gears 32 are connected to the left vertical plate 3 through a second wheel shaft 321. The axis directions of the two second wheel shafts 321 are both left and right. The second gear 32 located on the front side is meshed with the first gear 31 located on the front side. The second gear 32 located at the rear side is meshed with the first gear 31 located at the rear side. A drive motor 34 is provided between the two second gears 32 on the left side of the left vertical plate 3. The output shaft 341 of the drive motor 34 extends horizontally to the right. The right end of the output shaft 341 of the drive motor 34 passes through the left vertical plate 3 and is coaxially mounted with a third gear 33. The third gear 33 is located between the two second gears 32 and meshes with the two second gears 32 at the same time. A first roller 312 coaxially connected to the corresponding first gear 31 is provided on the right side of each of the two first gears 31.

[0019] A second roller 41 matching the first roller 312 is provided on the left side of the right vertical plate 4 and opposite to each first roller 312. Each second roller 41 is connected to the right vertical plate 4 via a third wheel shaft 2. The axis direction of the third wheel shaft 2 is left-right. A gap is left-right between the first roller 312 and the second roller 41 opposite to each other in the left-right direction.

[0020] A power supply and a controller are provided on the left side of the left vertical plate 3 or the right side of the right vertical plate 4 (the power supply, the controller and the related wiring harness are all existing mature technologies. For the sake of simplicity, they are not described in this embodiment and are also omitted in the drawings). The winch 2 and the drive motor 34 are both connected to the power supply through the controller.

[0021] The use method and advantages of this device: After the tower crane is dismantled, the cantilever beam (I-beam) used to connect the tower crane still extends to the facade of the building, the web 5 of the I-beam is vertical, and the two wing plates 6 of the I-beam are respectively located at the upper and lower ends of the web. When the device is installed, the left side plate and the right side plate are respectively clamped on the left and right sides of the web, so that the two first rollers 312 and the two second rollers 41 are both placed on the wing plates 6 on the lower side of the I-beam. The controller can be wirelessly remote controlled or wire controlled. At this time, the controller controls the forward and reverse rotation of the drive motor 34 to control the device to move forward and backward along the length direction of the I-beam, connect the building materials to the rope of the winch 2, and control the winch 2 to reel in and unreel through the controller to complete the lifting of the building materials. This device uses the cantilever beam (I-beam) remaining after the tower crane is dismantled as a track instead of the tower crane for lifting operations, so that the tower crane can be dismantled in advance, saving costs.

Claims

1. A lifting device attached to a cantilever beam, characterized in that: It includes a horizontally arranged long strip base plate with a longitudinal direction running forward and backward, a horizontally arranged winch with an axial direction running forward and backward is provided on the lower side of the base plate, and a left vertical plate and a right vertical plate are provided on the upper side of the base plate, which are arranged symmetrically on the left and right and have longitudinal directions running forward and backward; The left vertical plate is provided with two first gears arranged at a front-to-back interval on the right side of the left vertical plate, and the two first gears are connected to the left vertical plate through the first wheel axle, and the axial directions of the two first wheel axles are both left and right. A second gear arranged at a front-to-back interval is provided on the right side of the left vertical plate corresponding to the position between the two first gears, and the two second gears are connected to the left vertical plate through the second wheel axle, and the axial directions of the two second gears are both left and right. The second gear located at the front side is meshed with the first gear located at the front, and the second gear located at the rear is meshed with the first gear located at the rear. A driving motor is provided at the left side surface position of the left vertical plate corresponding to the position between the two second gears, and the output shaft of the driving motor extends horizontally to the right. The right end of the output shaft of the driving motor passes through the left vertical plate and is coaxially installed with a third gear. The third gear is located between the front and back of the two second gears and is meshed with the two second gears at the same time. A first roller coaxially connected to the corresponding first gear is provided on the right side of the two first gears; A second roller matching the first roller is provided on the left side of the right vertical plate and opposite to each first roller. Each second roller is connected to the right vertical plate through a third wheel shaft. The axis direction of the third wheel shaft is left-right. A gap is left-right between the first roller and the second roller opposite to each other in the left-right direction. A power supply and a controller are provided on the left side of the left vertical plate or the right side of the right vertical plate, and the hoist and the driving motor are both connected to the power supply through the controller.

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