Multi-stage lifting power-assisted mechanism

Abstract

The utility model discloses a multistage lifting assisting mechanism which comprises a machine frame, four corners of the machine frame are respectively provided with a set of lifting mechanism, each set of lifting mechanism is of the same structure and comprises a first-stage lifting mechanism, a second-stage lifting mechanism and a third-stage lifting mechanism, the fixed end of the first-stage lifting mechanism is fixedly installed on the machine frame, and the fixed end of the second-stage lifting mechanism is fixedly installed on the machine frame. The fixed end of the second-stage lifting mechanism is fixedly installed at the lifting end of the first-stage lifting mechanism, the lifting end of the second-stage lifting mechanism is connected with a one-way supporting plate used for supporting plates, and the third-stage lifting mechanism is installed on one side of the fixed end of the second-stage lifting mechanism. The top end of the lifting end of the third-level lifting mechanism is provided with a material receiving device used for receiving plates on the single supporting plate. The multi-stage lifting assisting mechanism can stably and efficiently lift large plates, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a lifting device, in particular to a multi-stage lifting assisting mechanism suitable for lifting large plates. Background Art

[0002] In the fields of construction and so on, sometimes large plates need to be lifted to a high place for installation. The plates are large and heavy, so lifting them is troublesome. The existing technology usually adopts the method of rope lifting, which is not only time-consuming and labor-intensive, but also has low work efficiency, and is easy to damage the plates. There is also a risk of the plates slipping during the lifting process. Therefore, it is particularly necessary to develop an efficient and stable plate lifting device. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-stage lifting assisting mechanism that can smoothly and efficiently lift large pieces of plate materials, thereby reducing the labor intensity of workers and improving work efficiency.

[0004] The technical solution adopted by the utility model is as follows: a multi-stage lifting assist mechanism, including a frame, a group of lifting mechanisms are installed on each of the four corners of the frame, each group of lifting mechanisms has the same structure, and includes a first-level lifting mechanism, a second-level lifting mechanism and a third-level lifting mechanism, the fixed end of the first-level lifting mechanism is fixedly installed on the frame, the fixed end of the second-level lifting mechanism is fixedly installed on the lifting end of the first-level lifting mechanism, the lifting end of the second-level lifting mechanism is connected with a one-way support plate for supporting a plate material, the three-level lifting mechanism is installed on one side of the fixed end of the second-level lifting mechanism, and a material receiving device for receiving the plate material on the one-way support plate is installed at the top of the lifting end of the three-level lifting mechanism.

[0005] Furthermore, the first-level lifting mechanism and the second-level lifting mechanism are both lifting slides, the slider of the first-level lifting slide is fixedly connected to the frame, and the slide is fixedly connected to the slide mounting plate, and the slide and the slide mounting plate are driven to perform lifting movements relative to the frame, and the second-level lifting slide is fixedly mounted on the slide mounting plate and is located on both sides of the slide mounting plate respectively with the first-level lifting slide.

[0006] Furthermore, the three-stage lifting mechanism and the two-stage lifting mechanism are installed in parallel on the same side of the slide mounting plate. The three-stage lifting mechanism includes a lifting column and a rack arranged on the side wall of the lifting column. A driving motor is installed on the slide mounting plate. The output end of the driving motor is connected to a gear meshing with the rack. The lifting column is driven to perform lifting movements through the cooperation of the gear and rack.

[0007] Furthermore, the material receiving device includes a rotating swing table installed at the top of the lifting end of the three-stage lifting mechanism, the output end of the rotating swing table is connected to a rotating pallet, and the rotating pallet and the one-way pallet on the same lifting mechanism are misaligned and not in the same vertical plane. Through the cooperation of the three-stage lifting mechanism and the rotating swing table, the rotating pallet receives the plate on the one-way pallet and lifts it.

[0008] As another optional solution, the material receiving device includes a mounting seat installed at the top end of the lifting end of the three-stage lifting mechanism, and a suction cup for adsorbing the plate located on the one-way pallet is fixedly installed on the mounting seat.

[0009] Furthermore, weighing sensors are installed on the one-way pallet and the material receiving device, and the weighing sensor signals are connected to a controller. The controller controls the actions of the driving units of the secondary lifting mechanism and / or tertiary lifting mechanism of each lifting mechanism according to the data obtained by the weighing sensors.

[0010] The beneficial effects of the utility model are:

[0011] (1) The multi-stage lifting assist mechanism of the utility model can smoothly lift a large piece of sheet material to a higher height through the cooperation of the multi-stage lifting mechanism. At the same time, the relay lifting between the secondary lifting mechanism and the tertiary lifting mechanism not only increases the lifting height, but also can realize the synchronous conveyance of two sheets of sheet material, thereby improving work efficiency;

[0012] (2) The lifting mechanism of the utility model adopts a three-level lifting mechanism. When not in use, each lifting mechanism is in a retracted state, so that the overall equipment occupies a small space without affecting the lifting height;

[0013] (3) By setting weighing sensors on the one-way pallet and the material receiving device, the controller can be used to control the actions of each lifting mechanism to achieve two lifting modes: Mode 1: automatic mode. In this mode, the sheet metal can be conveyed to a predetermined height, and the weighing sensors are used to detect the force applied to each lifting mechanism. According to the magnitude of the force, a micro-compensation is made to the driving speed of each lifting mechanism. Through this mode, the entire lifting process of the sheet metal is smooth and smooth; Mode 2: power-assisted mode. According to the real-time monitoring of the changes in the load size by the weighing sensors, the lifting mechanism is controlled to perform rising and falling movements, so that people can easily lift the heavy sheet metal to a suitable height. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the lifting mechanism of the utility model.

[0016] Figure 3It is a partial structural schematic diagram of the lifting mechanism of the utility model. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and carefully below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0018] like Figure 1-Figure 3 As shown, a multi-stage lifting assist mechanism of the present embodiment includes a frame 1, and a group of lifting mechanisms 2 are installed on each of the four corners of the frame 1. This mechanism can be composed of 4 lifting mechanisms evenly distributed at the four corners according to the required load size, or it can be composed of 2 groups of lifting mechanisms symmetrically. Each group of lifting mechanisms 2 has the same structure, and includes a first-level lifting mechanism 2-1, a second-level lifting mechanism 2-2 and a third-level lifting mechanism 2-3. The fixed end of the first-level lifting mechanism 2-1 is fixedly installed on the frame 1, and the fixed end of the second-level lifting mechanism 2-2 is fixedly installed on the lifting end of the first-level lifting mechanism 2-1. The lifting end of the second-level lifting mechanism 2-2 is connected to a one-way support plate 4 for supporting the plate 3. The one-way support plate 4 has slight damping when rotating upward, and is limited when rotating downward to the horizontal direction. The one-way support plate 4 can lift materials more stably, prevent materials from falling, and make it easier to place materials on the support plate. The three-stage lifting mechanism 2-3 is installed on one side of the fixed end of the two-stage lifting mechanism 2-2, and a material receiving device for receiving the plate 3 on the one-way pallet 4 is installed at the top of the lifting end of the three-stage lifting mechanism 2-3. In this embodiment, the material receiving device includes a rotating swing table 5 installed at the top of the lifting end of the three-stage lifting mechanism 2-3, and the output end of the rotating swing table 5 is connected to a rotating pallet 6. The rotating pallet 6 and the one-way pallet 4 on the same lifting mechanism 2 are misaligned and not in the same vertical plane. Through the cooperation of the three-stage lifting mechanism 2-3 and the rotating swing table 5, the rotating pallet 6 receives the plate 3 on the one-way pallet and lifts it.

[0019] In addition to the combination of the rotating swing table 5 and the rotating support plate 6 shown in this embodiment, the material receiving device can also adopt a suction cup structure, specifically including a mounting seat installed at the top of the lifting end of the three-stage lifting mechanism 2-3, and a suction cup for adsorbing the plate 3 located on the one-way support plate 4 is fixedly installed on the mounting seat.

[0020] In this embodiment, the first-level lifting mechanism 2-1 and the second-level lifting mechanism 2-2 are both lifting slides. The slider of the first-level lifting slide is fixedly connected to the frame 1, and the slide is fixedly connected to the slide mounting plate. The slide and the slide mounting plate are driven to perform lifting motion relative to the frame 1. The second-level lifting slide is fixedly mounted on the slide mounting plate and is located on both sides of the slide mounting plate with the first-level lifting slide. The third-level lifting mechanism 2-3 and the second-level lifting mechanism 2-2 are installed in parallel on the same side of the slide mounting plate. The third-level lifting mechanism 2-3 includes a lifting column 2-31 and a rack 2-32 arranged on the side wall of the lifting column 2-31. A driving motor 2-33 is installed on the slide mounting plate. The output end of the driving motor 2-33 is connected to a gear meshing with the rack 2-32. The gear rack 2-32 cooperates to drive the lifting column 2-31 to perform lifting motion.

[0021] In this embodiment, weighing sensors are installed on the one-way support plate 4 and the rotating support plate 6. The weighing sensors are used to detect the magnitude of the force applied to each lifting mechanism, and the controller can be used to control the action of each lifting mechanism to achieve two lifting modes. Mode 1: Automatic mode, in which the sheet can be conveyed to a predetermined height, and the force applied to each lifting mechanism is detected by the weighing sensor, and the driving speed of each lifting mechanism is slightly compensated according to the magnitude of the force. This mode makes the entire lifting process of the sheet smooth and smooth; Mode 2: Assisted mode, according to the real-time monitoring of the load change by the weighing sensor, the lifting mechanism is controlled to rise and fall, so that people can easily lift the heavy sheet to a suitable height. Both modes can adapt to various working conditions.

[0022] To improve stability, in this embodiment, anti-skid pads with patterns are provided on the one-way support plate 4 and the rotating support plate 6 .

[0023] During specific implementation: in the initial state, the first-level lifting mechanism 2-1 makes the slide mounting plate located at the lowest end relative to the frame, and the second-level lifting mechanism 2-2 drives the one-way pallet 4 to be located at the lowest end. At this time, the sheet material can be placed on the one-way pallet 4, and then lifted upward in two stages through the first-level and second-level lifting mechanisms. When it rises to the highest point, the rotating pallet 6 is driven by the rotating swing table 5 to swing to the bottom of the sheet material to lift the material, and then the output end gear rack 2-32 of the driving motor 2-33 cooperates with the driving column 2-31 to rise, thereby lifting the sheet material to the required height.

[0024] With the help of the teachings in the foregoing description and the related drawings, a person skilled in the art will be able to think of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used only in a general and descriptive sense and not for limitation.

Claims

1. A multi-stage lifting assist mechanism, comprising a frame (1), characterized in that: A group of lifting mechanisms (2) is respectively installed on the four corners of the frame (1); each group of lifting mechanisms (2) has the same structure and comprises a first-stage lifting mechanism (2-1), a second-stage lifting mechanism (2-2) and a third-stage lifting mechanism (2-3); the fixed end of the first-stage lifting mechanism (2-1) is fixedly installed on the frame (1); the fixed end of the second-stage lifting mechanism (2-2) is fixedly installed on the lifting end of the first-stage lifting mechanism (2-1); the lifting end of the second-stage lifting mechanism (2-2) is connected to a one-way support plate (4) for supporting a plate (3); the third-stage lifting mechanism (2-3) is installed on one side of the fixed end of the second-stage lifting mechanism (2-2); and a material receiving device for receiving the plate (3) on the one-way support plate (4) is installed at the top end of the lifting end of the third-stage lifting mechanism (2-3).

2. A multi-stage lifting assist mechanism as claimed in claim 1, characterized in that: The first-stage lifting mechanism (2-1) and the second-stage lifting mechanism (2-2) are both lifting slides. The slider of the first-stage lifting slide is fixedly connected to the frame (1), and the slide is fixedly connected to the slide mounting plate. The slide is driven to make the slide and the slide mounting plate perform lifting motion relative to the frame (1). The second-stage lifting slide is fixedly mounted on the slide mounting plate and is located on both sides of the slide mounting plate together with the first-stage lifting slide.

3. A multi-stage lifting assist mechanism as claimed in claim 2, characterized in that: The three-stage lifting mechanism (2-3) and the two-stage lifting mechanism (2-2) are installed in parallel on the same side of the slide mounting plate; the three-stage lifting mechanism (2-3) comprises a lifting column (2-31) and a rack (2-32) arranged on the side wall of the lifting column (2-31); a driving motor (2-33) is installed on the slide mounting plate; an output end of the driving motor (2-33) is connected to a gear meshing with the rack (2-32); the gear rack (2-32) cooperates to drive the lifting column (2-31) to perform lifting motion.

4. A multi-stage lifting assist mechanism as claimed in claim 1, characterized in that: The material receiving device comprises a rotating swing table (5) installed at the top end of the lifting end of the three-stage lifting mechanism (2-3); the output end of the rotating swing table (5) is connected to a rotating support plate (6); and the rotating support plate (6) and the one-way support plate (4) on the same lifting mechanism (2) are misaligned and are not in the same vertical plane. Through the cooperation of the three-stage lifting mechanism (2-3) and the rotating swing table (5), the rotating support plate (6) receives the plate (3) on the one-way support plate (4) and lifts it.

5. A multi-stage lifting assist mechanism as claimed in claim 1, characterized in that: The material receiving device comprises a mounting seat mounted on the top end of the lifting end of the three-stage lifting mechanism (2-3), and a suction cup for adsorbing the plate (3) located on the one-way support plate (4) is fixedly mounted on the mounting seat.

6. A multi-stage lifting assist mechanism according to any one of claims 1 to 5, characterized in that: Weighing sensors are installed on the one-way support plate (4) and the material receiving device. The weighing sensor signals are connected to a controller. The controller controls the actions of the driving units of the secondary lifting mechanism (2-2) and / or the tertiary lifting mechanism (2-3) of each lifting mechanism (2) according to data obtained by the weighing sensors.

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