Cable lifting mechanism

Abstract

The utility model discloses a cable lifting mechanism which comprises a lifting frame, a lead screw lifting driving device, a lifting seat, a front side guide wheel, a rear side guide wheel and an inner side guide wheel, the lifting frame comprises two vertical frames and a cross beam arranged at the upper ends of the two vertical frames, and sliding rails are arranged on the opposite inner walls of the two vertical frames. The lifting base is located between the two vertical frames, and the front side guide wheel, the rear side guide wheel and the inner side guide wheel are arranged on the lifting base and matched with the front side face, the rear side face and the inner side face of the sliding rail. The lifting seat is reasonable in structural design, the front side guide wheel, the rear side guide wheel and the inner side guide wheel are correspondingly matched with all the side faces of the sliding rail on the lifting frame, multiple guiding of the lifting seat in the lifting process is achieved, the stability during lifting is greatly improved, the shaking possibility is reduced, and the lifting seat is convenient to use. And the lead screw lifting driving device is adopted for driving, accurate and stable lifting power can be provided, the whole mechanism is easier, more convenient and safer to operate, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

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

[0002] During the wire and cable production process, wire reels must be lifted to a predetermined height for loading onto the reel-and-reel equipment. However, due to their heavy weight, fully wound reels are difficult to move and can only be rolled. Loading a fully wound reel requires multiple workers to manually lift it and secure it to the reel axis of the reel-and-reel equipment, making this operation time-consuming and labor-intensive.

[0003] To facilitate operation, the invention patent application with publication number "CN104444035A" and name "A lifting cable reel rack" discloses a lifting cable reel rack, including a hoist, a main beam, a mounting plate, a cantilever, a support beam, a base vertical beam and a bottom cross beam. Inclined main beams are respectively provided at both ends of the upper surface of the bottom cross beam, and corresponding grooves are respectively provided on the inner sides of the two main beams. The grooves form a slideway for the mounting plate to slide up and down. A cross beam is provided at the upper ends of the two main beams, and a hoist is provided in the middle of the cross beam. The hoist is connected to the middle of the hanging rod through a lifting chain, and the two ends of the hanging rod are respectively connected to the upper surface of the mounting plate by chains or belts or connecting plates. Two cantilevers are spaced apart on one side of the mounting plate, and one end of the two cantilevers is fastened or welded to the mounting plate by bolts. On the upper surface of the other end of the two cantilevers, a fixed seat is respectively provided, a wire drum is provided between the two fixed seats, a motor is provided on the lower surface of any one of the cantilevers, the motor is connected to an external controller through wire A, the controller is externally connected to the power system, at least one pulley is respectively provided at both ends of the other side of the mounting plate, base vertical beams extending outward are respectively provided at both ends of one side of the bottom cross beam, upwardly protruding support beams are respectively provided at positions of the two base vertical beams close to the main beam, the upper ends of the two support beams are respectively connected to the middle and lower parts of the two inclined main beams, the two main beams form an angle with the two base vertical beams, front wheels are respectively provided at the front ends of the two base vertical beams, movable wheels are provided at the lower part of the main beam on the other side of the bottom cross beam, handrails are provided on the main beam above the movable wheels, and a controller is provided on one side of any handrail. By setting a motor at the lower part of the cantilever, the motor controls the hoist to make the mounting plate slide up and down in the slideway of the main beam, so that the wire drum set on one side of the mounting plate can achieve the purpose of automatic lifting. However, the mounting plate is only provided with pulleys at both ends of one side, which is prone to shaking during lifting and lowering, and the lifting stability is poor. Utility Model Content

[0004] In view of the above shortcomings, the purpose of the present invention is to provide a cable lifting mechanism with reasonable structural design and stable lifting performance.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a cable lifting mechanism, which includes a lifting frame, a screw lifting drive device, a lifting seat, a front guide wheel, a rear guide wheel and an inner guide wheel, the lifting frame includes two vertical frames and a cross beam arranged at the upper ends of the two vertical frames, and slide rails are provided on the opposite inner walls of the two vertical frames, the lifting seat is located between the two vertical frames, the front guide wheel is arranged on the lifting seat corresponding to the front side surface of the slide rail and cooperates with the front side surface of the slide rail; the rear guide wheel is arranged on the lifting seat corresponding to the rear side surface of the slide rail and cooperates with the front side surface of the slide rail; the inner guide wheel is arranged on the lifting seat corresponding to the inner side surface of the slide rail and cooperates with the inner side surface of the slide rail; the screw lifting drive device is arranged on the cross beam and can drive the lifting seat to perform lifting and lowering actions.

[0006] As a preferred solution of the present invention, the cross-sectional profile of the slide rail is square. The square shape of the slide rail provides a better contact area, can withstand a larger load, is easy to process and install, and reduces manufacturing costs.

[0007] As a preferred embodiment of the present invention, the lifting base includes a top plate, side plates, a bottom plate, and a reel support plate. The two side plates are spaced apart and arranged opposite to each other and fixed by a connecting rod. The top plate is arranged at the upper end of the two side plates. One end of the bottom plate is arranged at the lower end of the two side plates, and the other end extends horizontally toward the front of the lifting frame to form a supporting portion. The reel support plate is arranged on the supporting portion. The two side plates are connected and fixed by a connecting rod, which increases the stability of the overall structure.

[0008] As a preferred solution of the present invention, the wire drum support plate is provided with a limiting groove, which can limit the wire drum to prevent it from being displaced or falling off during the lifting process, thereby improving the safety and stability of the lifting process.

[0009] As a preferred embodiment of the present invention, the front and rear guide wheels are located on the outer sides of the side panels, while the inner guide wheels are located on the inner sides of the side panels. The side panels are provided with openings that allow the inner guide wheels to be exposed from their outer sides. This allows the guide wheels to be more evenly distributed on the three sides of the slide rail, resulting in a better positioning and guiding effect, thereby improving the stability and balance of the lift base.

[0010] As a preferred solution of the present invention, the lower ends of the two stands are fixed on the same fixing plate, and fixing holes are provided at both ends of the fixing plate, which is easy to install and has good structural stability.

[0011] As a preferred solution of the present invention, the screw lifting drive device includes a movable seat, a motor and a screw lifter. A convex seat is provided on the crossbeam, and the middle position of the bottom of the movable seat is hinged to the convex seat. The screw lifter is arranged on the movable seat, and the screw flange of the screw lifter is connected to the lifting seat. The input shaft of the screw lifter is connected to the drive shaft of the motor, which can provide stable and precise lifting power, thereby realizing precise control of the entire lifting process.

[0012] The beneficial effects of the utility model are as follows: the utility model has a reasonable structural design, and the front guide wheel, the rear guide wheel and the inner guide wheel are respectively matched with the various side surfaces of the slide rail on the lifting frame, thereby realizing multiple guides of the lifting seat during the lifting process, greatly improving the stability during lifting and reducing the possibility of shaking, and adopting a screw lifting drive device for driving, which can provide accurate and stable lifting power, making the operation of the entire mechanism simpler and safer, improving work efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0015] Figure 3 It is a structural diagram of the lifting frame in the utility model.

[0016] Figure 4 It is a structural diagram of the lifting seat in the utility model. DETAILED DESCRIPTION

[0017] For example, see Figures 1 to 4 This embodiment provides a cable lifting mechanism, which includes a lifting frame 1, a screw lifting drive device 2, a lifting seat 3, a front guide wheel 4, a rear guide wheel 5 and an inner guide wheel 6.

[0018] See also Figure 3 The lifting frame 1 comprises two upright frames 11 and a crossbeam 12 mounted at the upper ends of the two upright frames 11. Slide rails 13 are provided on the opposing inner walls of the two upright frames 11. The cross-sectional profile of the slide rails 13 is preferably square. This square shape provides a greater contact area, capable of withstanding greater loads, and is easy to machine and install, reducing manufacturing costs. The lower ends of the two upright frames 11 are fixed to a common fixing plate 13, which has fixing holes at both ends, facilitating easy installation and ensuring good structural stability.

[0019] The lifting seat 3 is located between the two upright frames 11. The front guide wheel 4 is provided on the lifting seat 3 in correspondence with the front side of the slide rail 13 and cooperates with the front side of the slide rail 13. The rear guide wheel 5 is provided on the lifting seat 3 in correspondence with the rear side of the slide rail 13 and cooperates with the front side of the slide rail 13. The inner guide wheel 6 is provided on the lifting seat 3 in correspondence with the inner side of the slide rail 13 and cooperates with the inner side of the slide rail 13. For details, see Figure 4 The lifting base 3 includes a top plate 31, side plates 32, a bottom plate 33, and a wire drum support plate 34. The two side plates 32 are spaced apart and arranged opposite each other and fixed by a connecting rod 35. The two side plates 32 are connected and fixed by the connecting rod 35, which can increase the stability of the overall structure. The top plate 31 is arranged at the upper end of the two side plates 32. One end of the bottom plate 33 is arranged at the lower end of the two side plates 32, and the other end extends horizontally toward the front of the lifting frame 1 to form a support portion. The wire drum support plate 34 is arranged on the support portion. Preferably, the wire drum support plate 34 is provided with a limiting groove to limit the position of the wire drum and prevent it from shifting or falling off during the lifting process, thereby improving the safety and stability of the lifting process. During installation, the front guide wheel 4 and the rear guide wheel 5 are located on the outer side of the side plate 32, and the inner guide wheel 6 is located on the inner side of the side plate 32. The side plate 32 is provided with an opening to allow the inner guide wheel 6 to be exposed from its outer side. This allows the guide wheels to be more evenly distributed on the three sides of the slide rail 13 , resulting in a good limiting and guiding effect, thereby improving the stability and balance of the lifting base 3 .

[0020] The screw lift drive 2 is mounted on the crossbeam 12 and is capable of driving the lift seat 3 to perform lifting movements. Specifically, the screw lift drive 2 includes a movable seat 21, a motor 22, and a screw lift 23. A boss 121 is provided on the crossbeam 12, and the bottom center of the movable seat 21 is hingedly connected to the boss 121. The screw lift 23 is mounted on the movable seat 21. The screw flange of the screw lift 23 is connected to the lift seat 3, and the input shaft of the screw lift 23 is connected to the drive shaft of the motor 22. This provides stable and precise lifting power, thereby achieving precise control over the entire lifting process.

[0021] During loading, the lifting platform 3 descends to its lowest position in the initial position. When the wire reel is pushed to the limit slot of the wire reel support plate 34, the screw-type lifting drive 2 drives the lifting platform 3 upward, raising the reel to the desired height for easy loading onto the take-up and pay-off equipment. During the lifting process, the front guide wheels 4, rear guide wheels 5, and inner guide wheels 6 respectively cooperate with the front, rear, and inner surfaces of the slide rails 13 on the lifting frame 1, achieving multiple guidance for the lifting platform 3 during the lifting process. This limits the swaying of the lifting platform 3 in the forward, backward, left, or right directions, greatly improving its stability during lifting.

[0022] Based on the disclosures and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and alterations to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation to the present invention. Any use of the same or similar structures is within the scope of protection of the present invention.

Claims

1. A cable lifting mechanism, comprising a lifting frame, characterized in that: It also includes a screw lifting drive device, a lifting seat, a front guide wheel, a rear guide wheel and an inner guide wheel. The lifting frame includes two upright frames and a crossbeam arranged at the upper ends of the two upright frames. Slide rails are provided on the opposite inner walls of the two upright frames. The lifting seat is located between the two upright frames. The front guide wheel is arranged on the lifting seat corresponding to the front side of the slide rail and cooperates with the front side of the slide rail; the rear guide wheel is arranged on the lifting seat corresponding to the rear side of the slide rail and cooperates with the front side of the slide rail; the inner guide wheel is arranged on the lifting seat corresponding to the inner side of the slide rail and cooperates with the inner side of the slide rail; the screw lifting drive device is arranged on the crossbeam and can drive the lifting seat to perform lifting actions.

2. The cable lifting mechanism according to claim 1, characterized in that: The cross-sectional profile of the slide rail is square.

3. The cable lifting mechanism according to claim 1, characterized in that: The lifting seat includes a top plate, side plates, a bottom plate and a wire drum support plate. The two side plates are arranged opposite to each other and fixed by a connecting rod. The top plate is arranged at the upper end of the two side plates, one end of the bottom plate is arranged at the lower end of the two side plates, and the other end extends horizontally toward the front position of the lifting frame to form a supporting part, and the wire drum support plate is arranged on the supporting part.

4. The cable lifting mechanism according to claim 3, characterized in that: The wire drum supporting plate is provided with a limiting groove.

5. The cable lifting mechanism according to claim 3, characterized in that: The front guide wheel and the rear guide wheel are located on the outer side of the side plate, the inner guide wheel is located on the inner side of the side plate, and the side plate is provided with an opening for allowing the inner guide wheel to be exposed from the outer side thereof.

6. The cable lifting mechanism according to claim 1, characterized in that: The lower ends of the two upright frames are fixed on the same fixing plate, and fixing holes are provided at both ends of the fixing plate.

7. The cable lifting mechanism according to any one of claims 1 to 6, characterized in that: The screw lifting drive device includes a movable seat, a motor and a screw lifter. A convex seat is provided on the crossbeam. The middle position of the bottom of the movable seat is hinged on the convex seat. The screw lifter is arranged on the movable seat. The screw flange of the screw lifter is connected to the lifting seat. The input shaft of the screw lifter is connected to the drive shaft of the motor.

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