Lifting transfer trolley

Abstract

The invention provides a lifting transfer trolley which comprises a frame, a carrying table and a transmission part. The transmission part comprises a first rotating shaft, a second rotating shaft, a linear driving piece and a driving chain wheel. The first rotating shaft is rotationally arranged at the top of the frame, and a first chain wheel is arranged on the first rotating shaft; the second rotating shaft is rotationally arranged at the top of the frame, and a second chain wheel is arranged on the second rotating shaft; the linear driving part is arranged on the frame and drives the driving chain wheel to ascend and descend. One end of the first transmission chain is fixed on the side part of the carrying table, the middle of the first transmission chain sequentially bypasses the first chain wheel, the second chain wheel and the driving chain wheel, and the other end of the first transmission chain is fixed on the frame; chain transmission is driven through the movable pulley principle, the lifting stroke is reduced, and the equipment height is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of casting material transfer technology, and in particular to a lifting transfer vehicle. Background Technology

[0002] Transfer trolleys are common tools for transferring materials in foundries. Lifting transfer trolleys are based on transfer trolleys but incorporate vertical electric cylinders to raise and lower a platform, allowing materials to be positioned at different levels within an automated storage and retrieval system (AS / RS). However, in some height-restricted environments, the scene height may not be compatible with the maximum stroke of the electric cylinders.

[0003] Therefore, a lifting and transfer vehicle is needed to adapt to usage scenarios with height restrictions. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a lifting and transfer vehicle with a movable sprocket as the drive sprocket. Based on the principle of movable pulleys, this design can double the lifting stroke and reduce the equipment height. The technical solution adopted by this invention is as follows: A lifting and transferring vehicle includes a frame, a platform, and a transmission unit. The platform moves up and down within the frame, and the transmission unit includes: The first rotating shaft is rotatably mounted on the top of the frame, and a first sprocket is mounted thereon; The second rotating shaft is rotatably mounted on the top of the frame, and a second sprocket is mounted thereon; A linear drive component and a drive sprocket, wherein the linear drive component is mounted on the frame and drives the drive sprocket to move up and down; The first transmission chain has one end fixed to the side of the platform, passes through the first sprocket, the second sprocket and the drive sprocket in sequence, and the other end fixed to the frame.

[0005] Furthermore, it also includes a counterweight, which comprises: The third sprocket is mounted on the second shaft; Counterweight; The second transmission chain has one end fixed to the platform, passes around the third sprocket in the middle, and the other end fixed to the counterweight.

[0006] Furthermore, the transmission unit is provided in two sets, symmetrically arranged along the centerline of the frame.

[0007] Furthermore, the third sprocket and the second transmission chain are each configured as two, with the two third sprockets respectively mounted on the two second shafts in the two transmission parts, and the two second transmission chains respectively passing around the two third sprockets.

[0008] Furthermore, it also includes: Several rollers are arranged at intervals on both sides of the top of the platform; A drive motor rotates the rollers located on the platform at the drive edge.

[0009] Furthermore, it also includes: Several wheels are evenly distributed at the bottom of the frame.

[0010] Furthermore, four guide pillar structures are evenly arranged vertically on the frame, and the platform is slidably connected to the four guide pillar structures.

[0011] Advantages of this invention: By using a first rotating shaft, a first sprocket, a second rotating shaft, a second sprocket, a linear drive component, a drive sprocket, and a steering chain, the chain drive is driven by the principle of movable pulleys, reducing the lifting stroke and effectively lowering the height of the equipment; Increase counterweight to reduce the work done by the linear drive components; The double-row chain provides safety; if one chain breaks, the other chain remains connected to prevent the counterweight from falling. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structural composition of the present invention.

[0013] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle.

[0014] In the diagram: 100-frame, 110-walking wheel, 200-platform, 210-roller, 220-drive motor, 300-first shaft, 310-first sprocket, 400-second shaft, 410-second sprocket, 420-third sprocket, 500-linear drive component, 600-drive sprocket, 700-first transmission chain, 800-counterweight, 900-second transmission chain. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0016] Please see the appendix Figure 1 and attached Figure 2This application proposes a lifting and transferring vehicle, including a frame 100, a platform 200, and a transmission unit. The platform 200 is lifted and lowered within the frame 100. The transmission unit includes: a first rotating shaft 300, rotatably disposed on the top of the frame 100, with a first sprocket 310 disposed thereon; a second rotating shaft 400, rotatably disposed on the top of the frame 100, with a second sprocket 410 disposed thereon; a linear drive member 500 and a drive sprocket 600, the linear drive member 500 being disposed on the frame 100 and driving the drive sprocket 600 to lift and lower; and a first transmission chain 700, one end of which is fixed to the side of the platform 200, passing sequentially around the first sprocket 310, the second sprocket 410, and the drive sprocket 600, and the other end of which is fixed to the frame 100.

[0017] As attached Figure 1 and attached Figure 2 As shown, at least one guide sleeve is provided on each of the four sides of the platform 200, and several columns are provided on the frame 100 corresponding to several guide sleeves. By fitting the guide sleeves onto the columns, the platform 200 is guided during lifting and lowering, thereby improving the lifting stability of the platform 200. Bearing seats are installed at both ends of the first rotating shaft 300, and the bearing seats are fixed to the top of the frame 100 by bolts. The first sprocket 310 is keyed to the first rotating shaft 300. Bearing seats are installed at both ends of the second rotating shaft 400, and the bearing seats are fixed to the top of the frame 100 by bolts. A bracket is installed on the outside of the drive sprocket 600, and the installation is completed by fixing the bracket to the output end of the linear drive component 500.

[0018] Specifically, when the linear drive 500 drives the drive sprocket 600 to descend, the first transmission chain 700 is rotated via the second sprocket 410 and the first sprocket 310, causing the platform 200 to move upward; when the linear drive 500 drives the drive sprocket 600 to rise, the first transmission chain 700 is rotated via the second sprocket 410 and the first sprocket 310, causing the platform 200 to move downward. The transmission unit uses a movable pulley principle to drive the chain drive, reducing the lifting stroke and effectively lowering the equipment height.

[0019] In one embodiment of this application, the linear drive 500 is an electric cylinder.

[0020] In this embodiment, in order to reduce the work done by the electric cylinder and save energy, this application also includes a counterweight, which includes: a third sprocket 420, which is disposed on the second rotating shaft 400; a counterweight block 800; and a second transmission chain 900, one end of which is fixed to the platform 200, passes around the third sprocket 420 in the middle, and the other end is fixed to the counterweight block 800.

[0021] As attached Figure 1 and attached Figure 2As shown, the third sprocket 420 is keyed to the second shaft 400, and the counterweight 800 is located between two opposing vertical beams on the side of the frame 100, using the original structure of the frame 100 for positioning.

[0022] Specifically, when the linear drive 500 drives the drive sprocket 600 to descend, the platform 200 moves upward, the second transmission chain 900 is driven by the third sprocket 420, and the counterweight 800 moves downward under its own weight; when the linear drive 500 drives the drive sprocket 600 to rise, the platform 200 moves downward, and the second transmission chain 900 is driven by the third sprocket 420 to drive the counterweight 800 upward. By utilizing the gravitational balance between the platform 200 and the counterweight 800, the work done by the linear drive 500 is reduced.

[0023] In this embodiment, to improve the stability of the lifting drive of the platform 200, the transmission unit is provided in two sets, symmetrically arranged along the centerline of the frame 100. (See attached diagram) Figure 1 Based on the positional relationship in the frame 100, the two transmission parts are arranged symmetrically front and back. The axes of the first rotating shaft 300 and the second rotating shaft 400 are respectively along the front and back directions. The first rotating shaft 300 is located at the top left edge of the frame 100, and the second rotating shaft 400 is located at the top right edge of the frame 100. The bottom of the linear drive 500 is fixed to the side of the frame 100 and arranged in the vertical direction.

[0024] In this embodiment, two third sprockets 420 and two second transmission chains 900 are respectively configured. The two third sprockets 420 are respectively disposed on the two second rotating shafts 400 in the two transmission parts, and the two second transmission chains 900 respectively pass around the two third sprockets 420. (See attached diagram) Figure 1 Based on the positional relationship, the third sprocket 420 and the second sprocket 410 are arranged at intervals on the second rotating shaft 400. The counterweight 800 and the linear drive component 500 are arranged on the same side. The second transmission chain 900 is located on the right side of the platform 200 and does not interfere with the lifting and lowering of the platform 200. When a single chain breaks, the other chain remains connected to prevent the counterweight 800 from falling. Therefore, the double-row chain provides safety assurance; when a single chain breaks, the other chain remains connected to prevent the counterweight from falling.

[0025] In other embodiments, the linear drive component 500 is a linear drive structure such as a hydraulic cylinder, a ball screw feed mechanism, or a gear and rack transmission mechanism.

[0026] Please see the appendix Figure 1To facilitate loading and unloading on the platform 200, this application further includes: a plurality of rollers 210, rotatably arranged at intervals on both sides of the top of the platform 200; and a drive motor 220, which is disposed on the platform 200 and drives the rollers 210 at their edges to rotate. Driven by one drive motor 220, the material is moved on the platform 200 by the rolling of one roller 210, while the other rollers 210 assist in rolling to reduce friction.

[0027] Please see the appendix Figure 1 To facilitate the movement of the frame 100 on the conveyor line, this application further includes: a plurality of traveling wheels 110, evenly arranged at the bottom of the frame 100. Referring to the prior art, the traveling wheels 110 on the same side of the bottom of the frame 100 can be connected by a transmission rod, and then connected to a motor using a gear transmission structure to achieve electric control, enabling the transfer vehicle to move independently.

[0028] Furthermore, four guide pillar structures are evenly arranged vertically on the frame 100, and the platform 200 is slidably connected to the four guide pillar structures. The guide pillar structures are used to improve the lifting stability of the platform 200 and maintain the levelness of the platform surface.

[0029] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A lift and transfer vehicle characterized by, Including frame (100), carrier (200), transmission part, the carrier (200) is lifted in the frame (100), the transmission part includes: First rotating shaft (300), rotation is arranged in the top of the frame (100), is provided with first sprocket (310) on it; Second rotating shaft (400), rotation is arranged in the top of the frame (100), is provided with second sprocket (410) on it; Linear drive (500) and drive sprocket (600), the linear drive (500) is arranged on the frame (100), drives the drive sprocket (600) to lift; First transmission chain (700), one end is fixed in the side of the carrier (200), middle is sequentially passed first sprocket (310), second sprocket (410) and drive sprocket (600), the other end is fixed on the frame (100).

2. The lift and transfer cart of claim 1, wherein, Also including counterweight part, the counterweight part includes: Third sprocket (420), is arranged on the second rotating shaft (400); Counterweight block (800); Second transmission chain (900), one end is fixed in the carrier (200), middle is passed the third sprocket (420), the other end is fixed on the counterweight block (800).

3. The lifting transfer trolley according to claim 2, wherein: The transmission part is provided with two groups, and is symmetrical along the center line of the frame (100).

4. The lifting transfer trolley according to claim 3, wherein: The third sprocket (420) and the second transmission chain (900) are respectively arranged in two groups, two third sprockets (420) are respectively arranged on two second rotating shafts (400) in two transmission parts, and two second transmission chains (900) are respectively passed two third sprockets (420).

5. The lift and transfer cart of claim 1, wherein, Also including: Several rollers (210) are rotationally arranged at both sides of the top of the carrier (200) at intervals; Driving motor (220), is arranged on the carrier (200), drives the roller (210) rotation at the edge.

6. The lift and transfer cart of any of claims 1-5, wherein, Also including: Several walking wheels (110) are uniformly arranged at the bottom of the frame (100).

7. The lifting transfer trolley according to claim 1, wherein: The frame (100) is uniformly provided with four guide column structures along the vertical direction, and the carrier (200) Is slidingly connected to four guide column structures.

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