Double-stand-column elevator

Abstract

The utility model discloses a double-stand-column lifting machine which comprises a double-stand-column lifting frame, a lifting frame fixedly installed on the double-stand-column lifting frame and auxiliary lifting mechanisms fixedly installed on the two sides of the lifting frame and used for assisting in sliding with the double-stand-column lifting frame. A driving motor is fixedly installed on one side of the double-stand-column lifting frame, steel wire reels are installed on the two sides of the driving motor, a top column is fixedly installed on the top of the double-stand-column lifting frame, and a movable pulley and a positioning wheel which are used for lifting are installed at the two ends of the top column respectively. It is guaranteed that the lifting frame does not deviate or shake in the lifting process, and the stability of goods lifting is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics transportation, and particularly relates to a double-column elevator. Background Art

[0002] An elevator, also called a lift, is a type of lifting equipment that transports goods up and down.

[0003] Domestic utility model patent application number 202321497498.8 discloses a dual-column cargo lift. The lift comprises two columns fixed to a foundation. The upper ends of the two columns are fixedly connected by a crossbeam. Rack rods are mounted on opposite inner sides of the two columns, extending from the top to the bottom of the columns. A lifting frame is located between the two columns. The frame includes a bracket and drive motors mounted at the bottom of the bracket. Two drive motors are provided, one for each column. Gears are mounted on the output shafts of the drive motors, meshing with the racks of the rack rods on the corresponding columns. This lift is designed to be mounted on one side of a shelf, directly transporting goods vertically. This lift is then used with subsequent grabbing equipment for rapid sorting. This lift utilizes a rack-and-pinion transmission as its primary lifting mechanism. However, the rack-and-pinion structure places high demands on installation and maintenance. Rack-and-pinion transmission requires precise installation and adjustment. Improper installation can lead to reduced transmission accuracy or other malfunctions. Furthermore, the lift is noisy and suffers significant wear between components. Utility Model Content

[0004] To solve the above technical problems, the present invention provides a dual-column hoist, comprising a dual-column hoist frame, a lifting frame fixedly mounted on the dual-column hoist frame, and auxiliary lifting mechanisms fixedly mounted on both sides of the lifting frame for assisting sliding with the dual-column hoist frame. A drive motor is fixedly mounted on one side of the dual-column hoist frame, with wire drums mounted on both sides of the drive motor. A top column is fixedly mounted on the top of the dual-column hoist frame, with a movable pulley and positioning wheels mounted on both ends of the top column for lifting.

[0005] Place the cargo on the lifting frame, start the drive motor, and rotate the wire drum at the output end of the drive motor, so that the wire rope wrapped around the lifting frame is reeled in, thereby lifting and lowering the lifting frame. At the same time, cooperate with the auxiliary lifting mechanism to ensure the overall stability of the lifting frame during lifting.

[0006] As a further preferred technical solution of the present invention; a ladder is fixedly installed on one side of the double-column lifting frame, a base is slidably installed on the double-column lifting frame, a stacking mechanism is fixedly installed on one side of the lifting frame, and the drive motor is fixedly installed on the double-column lifting frame through a docking frame.

[0007] The provision of a ladder makes it easy to inspect and repair the elevator and replace parts.

[0008] As a further preferred technical solution of the present invention, the bottom of the lifting frame is fixedly mounted on the double-column lifting frame, and a loading frame is slidably mounted on the top of the lifting frame. The top of the lifting frame and the loading frame are slidably mounted via a bottom rail, an intermediate rail, and a top rail. The intermediate rail is slidably mounted on the bottom rail, and the top rail is slidably mounted on the intermediate rail. The top rail and the bottom rail are fixedly mounted to the loading frame and the lifting frame, respectively.

[0009] The loading rack is installed by sliding on the top of the lifting frame, which makes it easy to place the goods on the loading rack for lifting.

[0010] As a further preferred technical solution of the present invention; the end of the top column is located at the top position of the wire drum and the movable pulley is fixedly installed through a positioning frame, and an auxiliary pulley is installed on one side of the movable pulley, and a side pulley is fixedly installed on the double-column lifting frame at the bottom of the positioning frame.

[0011] The steel wire rope on the steel wire drum is connected by cooperating with the movable pulley and the auxiliary pulley, thereby achieving the lifting effect of the lifting frame.

[0012] As a further preferred technical solution of the present invention; a positioning wheel is fixedly installed on the other end of the top column through a limit frame, a horizontal plate is welded and installed on the inner side of the limit frame at the position of the positioning wheel, and a locking hole is provided on the horizontal plate for locking and fixing the wire rope.

[0013] Through the setting of the horizontal plate, one end of the wire rope is connected to the positioning wheel on the double-column lifting frame, and the other end is fixed to the wire drum. It cooperates with the movable pulley and auxiliary pulley installed on the double-column lifting frame for pulley guidance, and passes through the auxiliary lifting mechanism installed at one end of the lifting frame for lifting.

[0014] As a further preferred technical solution of the present invention; the auxiliary lifting mechanism includes a main frame, side auxiliary frames fixedly installed on both sides of the main frame, and a slider fixedly installed between the side auxiliary frames. A slide rail is fixedly installed on the double-column lifting frame at the position of the slider, and the slide rail and the slider are slidably installed. A mounting frame is fixedly installed inside the side auxiliary frame, and an auxiliary pulley group is fixedly installed on one side of the mounting frame. A limit strip is fixedly installed on the double-column lifting frame at the position of the auxiliary pulley group, a connecting wheel is fixedly installed on the mounting frame at the back of the auxiliary pulley group, and a connecting port is provided on the mounting frame at the position of the connecting wheel.

[0015] Through the setting of the connecting port, the wire rope passes through the mounting frame and is wound around the connecting wheel, and cooperates with the movable pulley, auxiliary pulley and positioning wheel for lifting. During the lifting process, the wire rope is installed by sliding between the slide rail and the slider, and the auxiliary drive motor drives the wire drum to rotate for lifting, ensuring that the lifting frame does not deviate or shake during the lifting process, thereby improving the stability of cargo lifting.

[0016] Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Through the setting of the connection port, the wire rope passes through the mounting frame and is wrapped around the connecting wheel. It cooperates with the movable pulley, auxiliary pulley, and positioning wheel to perform lifting. During the lifting process, it slides between the slide rail and the slider, and the auxiliary drive motor drives the wire drum to rotate and lift. This ensures that the lifting frame does not deviate or shake during the lifting process, improving the stability of cargo lifting. The wire rope is installed in the auxiliary lifting mechanism on one side of the lifting frame. The center of gravity force during lifting is adjacent to the position of the auxiliary pulley block in the auxiliary lifting mechanism. This reduces the tension loss caused by the wire rope being installed on the lifting frame body and the auxiliary pulley block, ensuring the lifting effect of the lifting frame.

[0019] 2. Stability: A lifting mechanism and a sliding mechanism ensure stable lifting. The dual-column design allows for the transport of cargo placed atop the loading rack without being restricted by the frame, making it particularly suitable for transporting slender materials. The car is equipped with a standard speed limiter mechanism, which, combined with a safety clamp, provides an even higher safety factor. The wire rope and pulley transmission system, compared to rack and pinion systems, offers cost savings, reduced noise, and reduced wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0024] Figure 5 This is a structural diagram of the auxiliary lifting mechanism of the utility model;

[0025] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point D in the middle.

[0026] In the figure: 1. Double-column lifting frame; 11. Ladder; 12. Base; 13. Limiting bar; 2. Lifting frame; 21. Bottom track; 22. Middle track; 23. Top track; 24. Loading frame; 3. Auxiliary lifting mechanism; 31. Side auxiliary frame; 32. Main frame; 33. Slider; 34. Slide rail; 35. Auxiliary pulley group; 36. Mounting frame; 37. Connecting wheel; 38. Connecting port; 4. Stacking mechanism; 5. Top column; 51. Positioning frame; 52. Movable pulley; 53. Auxiliary pulley; 54. Side pulley; 55. Limiting frame; 56. Positioning wheel; 57. Cross plate; 58. Locking hole; 6. Driving motor; 61. Wire drum; 62. Docking frame. DETAILED DESCRIPTION

[0027] This specific embodiment is a double-column hoist.

[0028] The aforementioned utility model utilizes a rack and pinion transmission as its primary lifting mechanism. However, the rack and pinion components present high installation and maintenance requirements. Rack and pinion transmission requires precise installation and adjustment, and improper installation can lead to reduced transmission accuracy or other malfunctions. Furthermore, the transmission is noisy and suffers significant wear between components.

[0029] Its structural diagram is as follows Figure 1 As shown, a double-post elevator comprises a double-post elevator frame 1, with a ladder 11 fixedly mounted on one side of the double-post elevator frame 1. A base 12 is slidably mounted on the double-post elevator frame 1. A stacking mechanism 4 is fixedly mounted on one side of a lifting frame 2. A drive motor 6 is fixedly mounted to the double-post elevator frame 1 via a docking bracket 62. The ladder 11 facilitates maintenance and parts replacement of the elevator. The elevator also includes a lifting frame 2 fixedly mounted on the double-post elevator frame 1. The bottom of the lifting frame 2 is fixedly mounted on the double-post elevator frame 1, and a loading frame 24 is slidably mounted on the top of the lifting frame 2. A bottom rail 21, an intermediate rail 22, and a top rail 23 are slidably mounted between the top of the lifting frame 2 and the loading frame 24. The intermediate rail 22 is slidably mounted on the bottom rail 21, and the top rail 23 is slidably mounted on the intermediate rail 22. The top rail 23 and the bottom rail 21 are fixedly mounted to the loading frame 24 and the lifting frame 2, respectively. The loading frame 24 slidably mounted on the top of the lifting frame 2 facilitates the placement of cargo on the loading frame 24 for lifting.

[0030] Its structural diagram is as follows Figure 2-Figure 4As shown. It also includes auxiliary lifting mechanisms 3 fixedly mounted on both sides of the lifting frame 2 for auxiliary sliding with the dual-column lifting frame 1. A drive motor 6 is fixedly mounted on one side of the dual-column lifting frame 1, with wire drums 61 mounted on both sides of the drive motor 6. A top column 5 is fixedly mounted on the top of the dual-column lifting frame 1, with a movable pulley 52 and a positioning wheel 56 mounted on each end for lifting. A movable pulley 52 is fixedly mounted on the end of the top column 5 at the top of the wire drum 61 via a positioning frame 51, and an auxiliary pulley 53 is mounted on one side of the movable pulley 52. A side pulley 54 is fixedly mounted on the dual-column lifting frame 1 at the bottom of the positioning frame 51. The movable pulley 52 and the auxiliary pulley 53 cooperate to connect the wire rope on the wire drum 61, thereby achieving the lifting effect of the lifting frame 2. A positioning wheel 56 is fixedly mounted on the other end of the top column 5 via a limiting bracket 55. A horizontal plate 57 is welded to the inside of the limiting bracket 55 at the position of the positioning wheel 56. The horizontal plate 57 is provided with a locking hole 58 for locking the wire rope. Through the arrangement of the horizontal plate 57, one end of the wire rope is connected to the positioning wheel 56 on the double-column lifting frame 1, and the other end is fixed to the wire drum 61. The wire rope is guided by the movable pulley 52 and auxiliary pulley 53 installed on the double-column lifting frame 1, and then passes through the auxiliary lifting mechanism 3 installed on one end of the lifting frame 2 for lifting.

[0031] Its structural diagram is as follows Figure 5-Figure 6As shown. The auxiliary lifting mechanism 3 includes a main frame 32, side auxiliary frames 31 fixedly mounted on both sides of the main frame 32, and a slider 33 fixedly mounted between the side auxiliary frames 31. A slide rail 34 is fixedly mounted on the double-column lifting frame 1 at the position of the slider 33, and the slide rail 34 and the slider 33 are slidably mounted between them. A mounting frame 36 is fixedly mounted inside the side auxiliary frame 31, and an auxiliary pulley block 35 is fixedly mounted on one side of the mounting frame 36. A limit strip 13 is fixedly mounted on the double-column lifting frame 1 at the position of the auxiliary pulley block 35, and a connecting wheel 37 is fixedly mounted on the mounting frame 36 at the back of the auxiliary pulley block 35, and a connecting port 38 is provided on the mounting frame 36 at the position of the connecting wheel 37. Through the connection port 38, a wire rope passes through the mounting frame 36 and winds around the connecting wheel 37. It then cooperates with the movable pulley 52, auxiliary pulley 53, and positioning wheel 56 to perform lifting. During the lifting process, the rope slides between the slide rail 34 and the slider 33, and the auxiliary drive motor 6 drives the wire drum 61 to rotate and lift the load. This ensures that the lifting frame 2 does not deflect or wobble during the lifting process, enhancing the stability of the cargo lift. The wire rope is installed within the auxiliary lifting mechanism 3 on one side of the lifting frame 2, so that the center of gravity during the lift is adjacent to the auxiliary pulley block 35 of the auxiliary lifting mechanism 3. This reduces the tension loss caused by the wire rope being installed on the lifting frame 2 and between the auxiliary pulley block 35, ensuring the lifting efficiency of the lifting frame 2. In terms of stability, a combination of a lifting structure and a sliding structure ensures a stable lift. The dual-column design allows the transport direction of cargo placed on top of the loading frame 24 to be unrestricted by the frame, making it particularly suitable for transporting slender materials. The car is equipped with a standard speed limiter mechanism, which, combined with a safety clamp, provides an even higher safety factor. Moreover, the transmission method of wire rope combined with pulley has the effect of saving costs, reducing noise and wear compared to the transmission of gear rack.

[0032] The cargo is placed on the loading rack 24 on top of the sliding lifting frame 2, and the drive motor 6 is started, causing the wire drum 61 at the output end of the drive motor 6 to rotate. One end of the wire rope is connected to the positioning wheel 56 on the double-post lifting frame 1, and the other end is fixed to the wire drum 61. The wire rope is guided by the movable pulley 52 and auxiliary pulley 53 installed on the double-post lifting frame 1. The wire rope passes through the mounting frame 36 and is wrapped around the connecting wheel 37. The movable pulley 52, auxiliary pulley 53, and positioning wheel 56 cooperate with each other to lift. During the lifting process, the wire rope slides between the slide rail 34 and the slider 33, and the auxiliary drive motor 6 drives the wire drum 61 to rotate and lift, thereby achieving the lifting and lowering of the lifting frame 2.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A double-column hoist, characterized in that: The invention comprises a double-column lifting frame (1), a lifting frame (2) fixedly mounted on the double-column lifting frame (1), and an auxiliary lifting mechanism (3) fixedly mounted on both sides of the lifting frame (2) for assisting sliding with the double-column lifting frame (1); a driving motor (6) is fixedly mounted on one side of the double-column lifting frame (1); a wire drum (61) is mounted on both sides of the driving motor (6); a top column (5) is fixedly mounted on the top of the double-column lifting frame (1); and a movable pulley (52) and a positioning wheel (56) for lifting are respectively mounted at both ends of the top column (5).

2. A double-column hoist according to claim 1, characterized in that: A ladder (11) is fixedly mounted on one side of the double-column lifting frame (1), a base (12) is slidably mounted on the double-column lifting frame (1), a stacking mechanism (4) is fixedly mounted on one side of the lifting frame (2), and the drive motor (6) is fixedly mounted on the double-column lifting frame (1) via a docking frame (62).

3. A double-column hoist according to claim 2, characterized in that: The bottom of the lifting frame (2) is fixedly mounted on the double-column lifting frame (1); a loading frame (24) is slidably mounted on the top of the lifting frame (2); the top of the lifting frame (2) and the loading frame (24) are slidably mounted via a bottom rail (21), an intermediate rail (22) and a top rail (23); the intermediate rail (22) is slidably mounted on the bottom rail (21); the top rail (23) is slidably mounted on the intermediate rail (22); the top rail (23) and the bottom rail (21) are fixedly mounted on the loading frame (24) and the lifting frame (2), respectively.

4. A double-column hoist according to claim 3, characterized in that: The end of the top column (5) is located at the top position of the wire drum (61) and is fixedly mounted with the movable pulley (52) through a positioning frame (51), and an auxiliary pulley (53) is mounted on one side of the movable pulley (52), and a side pulley (54) is fixedly mounted on the double-column lifting frame (1) at the bottom of the positioning frame (51).

5. A double-column hoist according to claim 4, characterized in that: The other end of the top column (5) is fixedly mounted with a positioning wheel (56) via a limiting frame (55); a transverse plate (57) is welded and mounted on the inner side of the limiting frame (55) at the position of the positioning wheel (56); and a locking hole (58) for locking and fixing the steel wire rope is opened on the transverse plate (57).

6. A double-column hoist according to claim 5, characterized in that: The auxiliary lifting mechanism (3) comprises a main frame (32), side auxiliary frames (31) fixedly mounted on both sides of the main frame (32), and a slider (33) fixedly mounted between the side auxiliary frames (31); a slide rail (34) is fixedly mounted on the double-column lifting frame (1) at the position of the slider (33); the slide rail (34) and the slider (33) are slidably mounted between the slide rail (34); a mounting frame (36) is fixedly mounted inside the side auxiliary frame (31), and an auxiliary pulley group (35) is fixedly mounted on one side of the mounting frame (36); a limiting strip (13) is fixedly mounted on the double-column lifting frame (1) at the position of the auxiliary pulley group (35); a connecting wheel (37) is fixedly mounted on the mounting frame (36) at the back of the auxiliary pulley group (35), and a connecting port (38) is provided on the mounting frame (36) at the position of the connecting wheel (37).

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