Lifting device

Abstract

The utility model relates to the technical field of lifting mechanical structures, in particular to a lifting device. In order to achieve the purpose, the lifting device comprises a base frame, a lifting frame is arranged on the base frame, a first lifting track is arranged on the base frame, the lifting frame ascends and descends along the first lifting track, and a second lifting track is arranged on the lifting frame. An upper synchronous wheel and a lower synchronous wheel are arranged on the upper side and the lower side of the lifting frame respectively, a synchronous belt is arranged between the upper synchronous wheel and the lower synchronous wheel, and the base frame and the other object to be lifted are fixed to the two sides of the synchronous belt respectively. The technical problems that in the prior art, the lifting efficiency is low, and actual requirements cannot be met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mechanical structures, in particular to a lifting device. Background Art

[0002] Lifting devices are widely used in various fields, including industry, agriculture, and construction. In industry, they are often used for material handling on production lines and conveying materials on assembly lines. In agriculture, they can be used to lift and convey grain, feed, and other materials on farms and in granaries. On construction sites, they are often used for vertical transportation of building materials and construction lifting.

[0003] The current lifting device has low lifting efficiency and cannot meet actual needs. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a lifting device, which aims to solve the technical problem that the prior art has low lifting efficiency and cannot meet actual needs.

[0005] To achieve the above-mentioned purpose, the utility model proposes a lifting device, including a base frame, a lifting frame is provided on the base frame, a first lifting track is provided on the base frame, the lifting frame is lifted and lowered along the first lifting track, and a second lifting track is provided on the lifting frame; upper and lower sides of the lifting frame are respectively provided with upper synchronous wheels and lower synchronous wheels, a synchronous belt is provided between the upper and lower synchronous wheels, and the base frame and another object to be lifted are respectively fixed on both sides of the synchronous belt.

[0006] Preferably, a fixing rod is provided on the base frame, a lifting block is provided on the fixing rod, and the lifting block is fixed on the synchronous belt.

[0007] Preferably, first lifting rails are provided on both sides of the base frame, grooves are provided on the first lifting rails, and sliders are provided on the lifting frame, and the sliders are provided on the first lifting rails.

[0008] Preferably, the lifting frame includes two vertical rods and a cross rod arranged on the vertical rods, a motor frame is fixed on the cross rod, a motor is arranged on the motor frame, and the motor drives the upper synchronous wheel to rotate.

[0009] Preferably, a fixing frame is provided below the two vertical rods, and a lower synchronous wheel is connected to the fixing frame.

[0010] Preferably, the fixing frame includes baffles arranged on both sides of the lower synchronous wheel, and a first clamping plate and a second clamping plate arranged on the outside of the first clamping plate are arranged on both sides of the baffle.

[0011] Preferably, the baffle is provided with an upper notch and a lower notch, the upper notch is provided with a first card plate and a second card plate, the lower notch is provided with a second card plate, the second card plate is fixed on the outside of the vertical rod, and the first card plate is fixed on the inside of the vertical rod.

[0012] Preferably, the synchronous belt width is set between 16-32 mm.

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

[0014] Different components are connected on both sides of the synchronous belt. The lifting frame can be raised and lowered and is set on the base frame. A motor is set on the lifting frame. When the motor rotates, the lifting frame rises relative to the frame. The second lifting track is connected to another object to be lifted. The object to be lifted rises with the synchronous wheel, achieving double lifting.

[0015] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a lifting device according to an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the enlarged structure at point A.

[0018] Figure 3 This is a schematic structural diagram from another angle of a lifting device in an embodiment of the present utility model.

[0019] Figure 4 It is a structural schematic diagram of a slider in an embodiment of the utility model.

[0020] Figure 5 It is a structural schematic diagram of a fixing frame according to an embodiment of the present utility model.

[0021] in:

[0022] 1-base frame; 11-first lifting track; 111-groove; 12-fixed rod; 13-vertical rod; 14-cross rod; 15-motor frame; 16-motor; 17-fixed frame; 171-baffle; 1711-upper notch; 1712-lower notch; 172-first clamping plate; 173-second clamping plate; 2-lifting frame; 21-upper synchronous wheel; 22-lower synchronous wheel; 23-synchronous belt; 24-slider; 3-second lifting track; 4-lifting block DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0024] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0025] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] See Figure 1-3, an embodiment of the utility model provides a lifting device, including a base frame 1, a lifting frame 2 is provided on the base frame 1, a first lifting track 11 is provided on the base frame 1, the lifting frame 2 is lifted and lowered along the first lifting track 11, and a second lifting track 3 is provided on the lifting frame 2. An upper synchronous wheel 21 and a lower synchronous wheel 22 are provided on the upper and lower sides of the lifting frame 2, respectively, a synchronous belt 23 is provided between the upper synchronous wheel 21 and the lower synchronous wheel 22, and the base frame 1 and another object to be lifted are fixed on both sides of the synchronous belt 23. The lifting device is completed using synchronous wheels and synchronous belts, and linear guides are used on both sides to enhance the overall rigidity of the lifting frame and reduce shaking. Specifically, from Figure 1 From a different perspective, during the lifting process, the synchronous wheel rotates clockwise, the outer synchronous belt descends, and the lifting frame 2 rises relative to the base frame 1. As the lifting frame 2 rises, the synchronous belt on the other side drives the objects to be lifted upward, achieving a multiple lift. When the lifting frame 2 descends, it can also achieve a multiple descent, improving lifting efficiency. The power of the present invention is that the top motor drives the synchronous belt. When the input end moves a certain distance, the load end will produce a double displacement.

[0028] The present invention is mainly used to achieve a wider range of motion for a robotic arm or other structure while maintaining a relatively compact structural design in the same space. It can be used for the following structures:

[0029] Robotic arms and lifting platforms: Double-range lifting is often used in situations where large-stroke movement is required, such as robotic arms and lifting platforms.

[0030] Lifting equipment: In some lifting equipment, the double-stroke design can enable the equipment to achieve a larger lifting range within a smaller structure.

[0031] Automatic door and window devices: In the design of automatic retractable doors and windows, the double-range lifting structure can achieve a wider range of opening and closing in a limited space.

[0032] Referring to 1-3, in an optional embodiment, the base frame 1 is provided with a fixing rod 12, and the fixing rod 12 is provided with a lifting block 4, and the lifting block 4 is fixed to the synchronous belt 23. When the synchronous belt 23 rotates, it can drive the lifting frame 2 to move up and down.

[0033] See Figure 1-4 In an optional embodiment, first lifting rails 11 are provided on both sides of the base frame 1, each of which has a groove 111. The lifting frame 2 is provided with a slider 24, which is mounted on the first lifting rail 11. The structure of the second lifting rail 3 can be the same as that of the first lifting rail 11, and the second lifting rail 3 can also be provided with a slider. The slider 24 is provided with a protrusion that fits in the groove 111 to prevent it from falling off during sliding and lifting.

[0034] See Figure 3 In an optional embodiment, the lifting frame 1 includes two vertical rods 13 and a horizontal rod 14 mounted on the vertical rods 13. A motor frame 15 is fixed to the horizontal rod 14, and a motor 16 is mounted on the motor frame 15. The motor 16 drives the upper synchronous wheel 21 to rotate. In actual use, the lifting 3508 motor changes the 1:19 reduction ratio to 1:27. After calculation, a single motor can provide approximately 4.07 Nm of continuous torque. Two motors are sufficient to lift the approximately 15 kg lifting frame to its highest position and maintain it for over ten minutes. Since the motor heat generation is always within the normal range at room temperature of 26 degrees Celsius, no additional gravity compensation mechanism is required.

[0035] See Figure 1 and Figure 5 In an optional embodiment, a fixing frame 17 is provided below the two vertical rods 13 , and a lower synchronous wheel 22 is connected to the fixing frame 17 .

[0036] Furthermore, the fixing frame 17 includes baffles 171 arranged on both sides of the lower synchronous wheel 22 , first clamping plates 172 arranged on both sides of the baffle 171 , and second clamping plates 173 arranged on the outside of the first clamping plates 172 .

[0037] Furthermore, the baffle 171 is provided with an upper notch 1711 and a lower notch 1712. The upper notch 1711 is provided with a first card plate 172 and a second card plate 173, and the lower notch 1712 is provided with a second card plate 173. The second card plate 173 is fixed to the outside of the vertical rod 13, and the first card plate 172 is fixed to the inside of the vertical rod 13. The two first card plates 1711 are fixed by screws and are arranged between the two vertical plates 13. The second card plate 173 is arranged on the outside of the first card plate 172 and is also fixed by screws, and the second card plate 173 is fixed to the vertical plate 13. The second card plate 173 is in the shape of a butterfly wing, which reduces the weight and improves the stability. By fixing with two types of card plates, the lifting frame 2 will not shake during the lifting process. Since it is a double-distance lifting, a more stable fixing structure is required, so the above structure was selected.

[0038] See Figure 1 and Figure 5 In an optional embodiment, the width of the synchronous belt 23 is set between 16-32 mm. Preferably, it is 16 mm, so that it fits the synchronous wheel better, thereby eliminating the problem of tooth jamming. In this solution, the mass of the lifting frame 2 is set to 16 kg, and the maximum lifting stroke is 620 mm.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting device, characterized in that: The invention comprises a base frame (1), a lifting frame (2) is provided on the base frame (1), a first lifting track (11) is provided on the base frame (1), the lifting frame (2) is lifted and lowered along the first lifting track (11), and a second lifting track (3) is provided on the lifting frame (2); an upper synchronous wheel (21) and a lower synchronous wheel (22) are provided on the upper and lower sides of the lifting frame (2), a synchronous belt (23) is provided between the upper synchronous wheel (21) and the lower synchronous wheel (22), and the base frame (1) and another object to be lifted are fixed on both sides of the synchronous belt (23).

2. A lifting device according to claim 1, characterized in that: A fixing rod (12) is provided on the base frame (1), a lifting block (4) is provided on the fixing rod (12), and the lifting block (4) is fixed on the synchronous belt (23).

3. A lifting device according to claim 1, characterized in that: First lifting rails (11) are provided on both sides of the base frame (1), and grooves (111) are provided on the first lifting rails (11). A slider (24) is provided on the lifting frame (2), and the slider (24) is arranged on the first lifting rails (11).

4. A lifting device according to claim 1, characterized in that: The lifting frame (2) includes two vertical rods (13) and a cross rod (14) arranged on the vertical rods (13). A motor frame (15) is fixed on the cross rod (14). A motor (16) is arranged on the motor frame (15). The motor (16) drives the upper synchronous wheel (21) to rotate.

5. A lifting device according to claim 4, characterized in that: A fixing frame (17) is provided below the two vertical rods (13), and a lower synchronous wheel (22) is connected to the fixing frame (17).

6. A lifting device according to claim 5, characterized in that: The fixing frame (17) comprises baffles (171) arranged on both sides of the lower synchronous wheel (22), first clamping plates (172) arranged on both sides of the baffle (171), and second clamping plates (173) arranged outside the first clamping plates (172).

7. A lifting device according to claim 6, characterized in that: The baffle (171) is provided with an upper notch (1711) and a lower notch (1712); a first clamping plate (172) and a second clamping plate (173) are provided on the upper notch (1711); the second clamping plate (173) is fixed on the outside of the vertical rod (13); and the first clamping plate (172) is fixed on the inside of the vertical rod (13).

8. The lifting device according to claim 1, wherein: The width of the synchronous belt (23) is set between 16 and 32 mm.

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