Movable platform type electric wrapping machine

Abstract

The utility model discloses a movable platform type electric wrapping machine which comprises a platform frame, walking wheel assemblies installed on the inner sides of the upper portions of the front end and the rear end of the platform frame, the platform frame can move in the axial direction of a wound piece through the walking wheel assemblies, and the walking wheel assemblies and the platform frame are connected through a height lifting mechanism; the rotating disc restraint frame is installed in the platform frame through an upper longitudinal beam and a lower lead screw of the platform frame, a rotating disc is arranged on one side face of the rotating disc restraint frame, and a tape reel is fixed to the rotating disc; a rotating disc longitudinal driving assembly; and the platform moving traction assembly is used for pulling the whole platform frame to move along the axial direction of the wound piece at a constant speed. According to the movable platform type electric wrapping machine, the front main walking wheel and the rear main walking wheel can cross obstacles on the surface of a wound piece in a non-contact mode, the overall gravity center of the device is low, and work stability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of winding devices, in particular to a movable platform type electric wrapping machine. Background Art

[0002] Currently, traditional wrapping equipment for wrapping large objects, particularly those with large diameters such as bridge cables and pipelines, is often operated manually or semi-mechanized. This approach has numerous drawbacks, including low efficiency, high labor intensity, inability to maintain continuous wrapping tension, and poor construction stability. Furthermore, encountering obstacles on the surface of the object (such as cable clamps or air clamps) during the wrapping process often requires machine downtime for adjustment, further reducing construction efficiency. Furthermore, traditional equipment is difficult to automate and intelligently operate, especially in complex construction environments, such as those with irregular surfaces or localized height differences. This can easily lead to construction interruptions, increasing operational difficulty and construction costs.

[0003] While some existing wrapping equipment can achieve a certain degree of automation, it still requires significant human intervention when encountering obstacles on the surface of the wrapped object. The equipment lacks the ability to autonomously navigate obstacles, and some uses its running mechanism to directly crush obstacles, causing varying degrees of damage to both the wrapped object and the running mechanism itself. Furthermore, existing wrapping equipment is complex, heavy, and has a high center of gravity, which can lead to instability during operation, affecting wrapping quality and even posing safety risks.

[0004] Therefore, the existing winding equipment cannot fully meet the requirements of large-scale structure winding construction for efficiency, stability and automation, especially in complex construction environments, where the equipment performance is particularly insufficient. Utility Model Content

[0005] To address the shortcomings of the aforementioned existing technologies, the present invention proposes a mobile platform-based electric wrapping machine with an obstacle-crossing function, enabling contactless traversal of obstacles on the surface of the wrapped object during the wrapping process while maintaining overall stability, ensuring the continuity and quality of the wrapping process. Furthermore, the present wrapping machine boasts a compact design, a low center of gravity, stable operation, and stable wrapping tension, making it suitable for wrapping various large structures, significantly improving construction efficiency and reducing the need for manual intervention.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical means:

[0007] A movable platform electric wrapping machine, comprising:

[0008] The platform frame is erected outside the wrapped object, and between the platform frame and the wrapped object is provided:

[0009] The walking wheel assembly is installed on the upper part of the platform frame in the longitudinal direction of the platform frame, and the platform frame can move along the winding member in the axial direction through the walking wheel assembly. A height lifting mechanism is connected between each group of walking wheel assemblies and the platform frame, and the height lifting mechanism can drive the walking wheel assembly to lift or press down to the upper surface of the winding member.

[0010] The holding mechanism is symmetrically arranged on the left and right sides of the inside of the platform frame, and is used to hold the entire platform frame on the winding member.

[0011] The rotating disc constraint frame is installed in the platform frame through the upper longitudinal beam and the lower screw rod of the platform frame. A rotating disc is hung on one side of the rotating disc constraint frame through a supporting pulley, and a tape reel is fixed on the rotating disc.

[0012] The rotating drive unit is installed on the lower part of the platform frame, and drives the rotating disc to rotate uniformly around the winding member through a transmission assembly.

[0013] The rotating disc longitudinal drive assembly is installed on the inside bottom of the platform frame, and is used to drive the rotating disc constraint frame to move uniformly along the platform frame in the longitudinal direction together with the rotating disc.

[0014] The platform moving traction assembly is used to uniformly move the entire platform frame along the winding member in the axial direction.

[0015] The outer circular surface of the rotating disc is provided with a ring gear.

[0016] The rotating disc drive unit is a motor, and the motor drive shaft is engaged with the ring gear through a gear.

[0017] The bottom of the platform frame is provided with two symmetrically arranged slide rails, and the two ends of each slide rail are connected with the gantry frames at the front and rear ends of the platform frame. A trolley that can slide along the slide rail is arranged on each slide rail.

[0018] The lifting belt straddles the upper surface of the winding member, and the two ends of the lifting belt are connected to the trolley through a pin shaft.

[0019] The rotating disc longitudinal drive assembly includes a screw rod and a screw rod drive motor, and the screw rod and the screw rod drive motor are both installed on the inside bottom of the platform frame. The rotating disc constraint frame is fixedly connected with the screw nut moving pair on the screw rod.

[0020] The platform moving traction assembly includes a traction hoist and a traction steel wire rope. One end of the traction steel wire rope passes through the traction hoist, then passes through a steering pulley arranged on the winding member, and then the other end of the traction steel wire rope is fixed to the column on the opposite side of the platform frame.

[0021] The height lifting mechanism is a hydraulic oil cylinder, the cylinder body of the hydraulic oil cylinder is fixedly connected to the upper cross beams at the front and rear ends of the platform frame, and the telescopic shaft of the hydraulic oil cylinder is connected to the walking wheel assembly.

[0022] The travel wheel assembly includes: a main travel wheel, a travel wheel housing and a travel wheel guide support column, wherein:

[0023] The main walking wheel is mounted on the walking wheel housing, and the walking wheel guide support column is connected between the walking wheel housing and the platform frame.

[0024] Two groups of the clamping mechanisms are symmetrically arranged on the left and right sides of the wrapped piece on the inner side of the gantry at the front and rear ends of the platform frame, and each group of the clamping mechanisms includes: a hydraulic jack, a push rod and a connecting plate, wherein the hydraulic jack is in contact with the outer wall of the wrapped piece through the push rod and the connecting plate. Beneficial effects

[0025] First, the movable platform electric wrapping machine of the present invention has a height lifting mechanism between the walking wheel assembly and the platform frame. At the same time, by riding on a sling arranged on the upper surface of the wrapped workpiece, the two ends of the sling are connected to the pulley through a pin shaft; the platform moves the traction assembly to enable the front and rear main walking wheels to cross the obstacles of the wrapped workpiece without contact, thereby preventing the technical problem of damage to the walking wheel assembly due to obstacles.

[0026] Second, the platform-type electric wrapping machine of the utility model weighs about 2 tons, and the rotary drive unit and the rotary disk longitudinal drive assembly, which account for a relatively large proportion of the weight, are installed at the lower part of the entire wrapping machine, resulting in the overall center of gravity of the wrapping machine being at the bottom of the wrapped workpiece. The machine automatically stands vertically as it rides on the wrapped workpiece, and has good balance, ensuring that no tilting occurs.

[0027] Third, the rotary disk longitudinal drive assembly adopts a lead screw and a lead screw drive motor, which can achieve uniform and adjustable wrapping speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the movable platform electric wrapping machine of the utility model;

[0029] Among them, 1 is the platform frame; 2 is the walking wheel assembly; 3 is the clamping mechanism; 4 is the rotating disk restraint frame; 5 is the rotating disk; 6 is the belt reel; 7 is the rotation drive unit; 8 is the rotating disk longitudinal drive assembly; 9 is the lead screw; 10 is the slide rail; 11 is the pulley; 12 is the lifting belt; 13 is the platform moving traction assembly; 14 is the height lifting mechanism; 15 is the wound part;

[0030] Figure 2 for Figure 1 side view. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings. Example

[0032] like Figure 1 As shown, in this embodiment, the wrapped object is the main cable of the bridge, and the structure of the movable platform electric wrapping machine is as follows:

[0033] The movable platform wrapping machine consists of the following major parts: platform frame, walking wheel assembly, height lifting mechanism, rotating disk restraint frame, rotating disk, belt reel, clamping mechanism, slide rail, pulley, sling, rotating disk longitudinal drive assembly and platform moving traction assembly.

[0034] Platform frame----The platform frame size is (4000~6000)*(2000~2500)*(3000~3500), which is welded from steel square tubes and serves as the carrier skeleton of the entire platform electric wrapping machine.

[0035] The platform frame can move axially along the wound part through the walking wheel assembly. In this embodiment, the walking wheel assembly is composed of a main walking wheel, a walking wheel shell, and a walking wheel guide support column made of polyurethane material. The main walking wheel in this embodiment has an inner concave surface, the curvature of the concave surface matches the curvature of the main cable surface, and can roll along the upper surface of the main cable.

[0036] As another solution of this embodiment, the walking wheel assembly includes multiple walking wheels, namely two walking wheels located at the top and left and right sides of the wrapped part. The three walking wheels are combined into one through a wheel frame to enable the platform frame to be guided and moved axially along the wrapped part.

[0037] Height lifting mechanism - consists of a hydraulic cylinder, high-pressure oil pipe, hydraulic station and hydraulic control box. The hydraulic cylinder can automatically extend and retract along the longitudinal direction of the paint cylinder body. The hydraulic cylinder is 1T~5T, with a stroke of 100~450mm, and can lift or press down the walking wheel assembly to the upper surface of the main cable.

[0038] Rotating disk restraint frame----The rotating disk restraint frame is installed in the platform frame through the upper longitudinal beam of the platform frame and the lower lead screw. Under the action of the lead screw, the frame can slide at a uniform speed along the longitudinal direction of the frame as a whole.

[0039] Rotating assembly----consists of a rotating disk and a rotating disk drive motor. The rotating disk is suspended on one side of the rotating disk constraint frame through 4 to 6 constraint pulleys. A ring gear is provided on the outer surface of the rotating disk. Driven by the rotating disk drive motor through the gear, the rotating disk can rotate at a uniform speed around the main cable.

[0040] The belt reel is composed of a rotating shaft and a torque measuring instrument, and the belt reel is fixed on the rotating disc.

[0041] The holding mechanism is composed of hydraulic jacks, steel structure jacking rods and steel structure arc plates. Four groups of holding mechanisms are symmetrically arranged horizontally in the inner sides of the front and rear gantries of the platform frame. Under the action of the hydraulic jacks, the entire platform frame can be firmly held on the main cable.

[0042] The slide rail is arranged at the bottom of the platform. The two ends of the slide rail are connected with the front and rear gantries of the platform frame, and the bottom of the slide rail is connected with the frame at the bottom of the platform frame. A trolley that can slide along the I-shaped slide rail is arranged on the slide rail.

[0043] The trolley is suspended on the upper surface of the slide rail, and the load of the trolley is not less than 5T. The trolley can slide forward and backward along the I-shaped slide rail.

[0044] The lifting belt is made of nylon or polypropylene, and the load of the lifting belt is not less than 3T. The lifting belt is straddled on the upper surface of the main cable, and the two ends of the lifting belt are connected to the trolley through steel structure pin shafts. Through the height lifting mechanism in the front and rear gantry sections of the operating platform, the entire movable platform type wrapping machine can be suspended on the main cable through the lifting belt.

[0045] The rotating disc longitudinal driving assembly is composed of a lead screw and a lead screw driving motor. The lead screw and the lead screw driving motor are installed at the bottom of the inner side of the movable steel structure platform frame. Starting the lead screw driving motor drives the lead screw to rotate, thereby driving the rotating disc restraint frame to move forward at a uniform speed together with the rotating disc.

[0046] The platform moving traction assembly is composed of a traction hoist and a traction steel wire rope. One end of the traction steel wire rope passes through the traction hoist, then passes through a diverting pulley arranged on the main cable about 20-30m in front of the movable platform type electric wrapping machine, and then the other end of the traction steel wire rope is fixed to a column outside the front gantry of the platform frame. Starting the traction hoist, the entire movable platform type electric wrapping machine can be moved forward at a uniform speed through the traction of the traction steel wire rope.

[0047] A wrapping method based on the movable platform type electric wrapping machine,

[0048] Wrapping mode one:

[0049] S1, the height lifting mechanism drives the walking wheel assembly to descend to the upper surface of the wrapped member. The entire movable platform type electric wrapping machine is suspended and supported on the wrapped member through the walking wheel assembly, and at the same time, the entire platform frame is held between the wrapped member through the holding mechanism.

[0050] S2, start the rotating drive unit, and the rotating disc rotates, and at the same time, start the rotating disc longitudinal driving assembly.

[0051] S3, the rotating disk restraint frame moves along the longitudinal direction of the platform frame with the rotating disk at a uniform speed and is wrapped by the wrapping piece;

[0052] S4, the rotating disk stops working when it reaches the front end of the platform of the movable platform electric wrapping machine, and the clamping mechanism loosens the entire platform frame and the wrapped workpiece; the platform frame is moved forward by the platform moving traction assembly to the next working position and then stops moving; the rotating disk longitudinal drive assembly is started to rotate in the reverse direction, so that the rotating restraint frame drives the rotating disk back to the end position of the previous wrapping, and steps S1 to S3 are repeated;

[0053] Wrapping working mode 2:

[0054] SA, the travel wheel assembly is driven down to the upper surface of the wrapped workpiece by the height lifting mechanism, and the entire movable platform electric wrapping machine is suspended and supported by the travel wheel assembly. At the same time, the entire platform frame and the wrapped workpiece are loosened by the clamping mechanism;

[0055] SB, start the rotary drive unit, the rotary disk rotates, and at the same time start the platform movement traction assembly;

[0056] The SC and platform frame move forward at a constant speed and are wrapped by the wrapping parts.

[0057] The utility model further discloses a working method for crossing obstacles on the surface of a wrapped workpiece based on the movable platform electric wrapping machine, comprising the following steps:

[0058] Step 1: When a set of running wheel assemblies on the platform frame that is adjacent to an obstacle encounters an obstacle, the sling is straddled on the upper surface of the wrapped object and on the set of running wheel assemblies that is adjacent to the obstacle. Both ends of the sling are connected to the pulley via a pin. At this point, the sling can be firmly connected to the entire wrapped object.

[0059] Step 2: A set of running wheel assemblies on the platform frame adjacent to the obstacle is raised by the height lifting mechanism connected thereto until it is higher than the obstacle. At this time, the portion of the movable platform-type electric wrapping machine adjacent to one end of the obstacle is suspended and supported by the sling; the platform moving traction assembly is started, and the entire platform frame moves forward at a constant speed until the running wheel assembly at the front end in the wrapping direction passes over the obstacle. During the process of crossing the obstacle, both ends of the sling slide along the slide rail through the pulley;

[0060] Step 3: The method for the traveling wheel assembly at the rear of the platform frame to cross the obstacle on the surface of the wrapped part is the same as Step 1 to Step 2.

[0061] It should be noted that before step three, the sling needs to be separated from the wrapped object first, and the sling needs to be fastened to the wrapped object again after passing over the obstacle.

Claims

1. A movable platform electric wrapping machine, characterized in that: include: The platform frame is erected outside the wrapped piece, and between the platform frame and the wrapped piece is provided: The running wheel assembly includes at least two groups. The multiple running wheel assemblies are installed on the upper part of the platform frame along the longitudinal direction of the platform frame. The platform frame can move along the axial direction of the wrapped workpiece through the running wheel assembly. Each group of running wheel assemblies is connected to the platform frame by a height lifting mechanism. The height lifting mechanism can drive the running wheel assembly to lift or press down to the upper surface of the wrapped workpiece. The clamping mechanism is symmetrically arranged on the left and right sides of the inner side of the platform frame, and is used to clamp the entire platform frame onto the wrapped object; A rotating disk restraint frame is installed in the platform frame through the upper longitudinal beam and the lower spiral screw of the platform frame. A rotating disk is suspended on one side of the rotating disk restraint frame through a supporting pulley, and a belt reel is fixed on the rotating disk; A rotation drive unit is installed at the lower part of the platform frame and drives the rotating disk to rotate at a constant speed around the wound object through a transmission assembly; The rotating disk longitudinal drive assembly is installed at the inner bottom of the platform frame and is used to drive the rotating disk restraint frame to move along the longitudinal direction of the platform frame at a uniform speed together with the rotating disk; The platform moving traction assembly is used to pull the entire platform frame along the axial direction of the wound part at a uniform speed.

2. The movable platform electric wrapping machine according to claim 1, characterized in that: The outer surface of the rotating disk is provided with a ring gear; The rotating disk driving unit is a motor, and the motor driving shaft is meshed with the ring gear through a gear.

3. The movable platform electric wrapping machine according to claim 1, characterized in that: Two symmetrically arranged slide rails are provided on both sides of the bottom of the platform frame, and both ends of each slide rail are connected to the gantry at the front and rear ends of the platform frame, and each slide rail is provided with a pulley that can slide along the slide rail; The sling is straddled on the upper surface of the wrapped member, and both ends of the sling are connected to the pulley through pins.

4. The movable platform electric wrapping machine according to claim 1, characterized in that: The rotating disk longitudinal drive assembly includes: a screw and a screw drive motor, both of which are installed at the bottom inner side of the platform frame, and the rotating disk restraint frame is fixedly connected to the nut moving pair on the screw.

5. The movable platform electric wrapping machine according to claim 1, characterized in that: The platform moving traction assembly includes: a traction hoist and a traction wire rope. One end of the traction wire rope passes through the traction hoist and then passes through a steering pulley set on the wound part, and then the end of the traction wire rope is fixed to the column on the other side of the platform frame.

6. The movable platform electric wrapping machine according to claim 1, characterized in that: The height lifting mechanism is a hydraulic oil cylinder, the cylinder body of the hydraulic oil cylinder is fixedly connected to the upper cross beams at the front and rear ends of the platform frame, and the telescopic shaft of the hydraulic oil cylinder is connected to the walking wheel assembly.

7. The movable platform electric wrapping machine according to claim 1, characterized in that: The travel wheel assembly includes: a main travel wheel, a travel wheel housing and a travel wheel guide support column, wherein: The main walking wheel is mounted on the walking wheel housing, and the walking wheel guide support column is connected between the walking wheel housing and the platform frame.

8. The movable platform electric wrapping machine according to claim 1, characterized in that: Two groups of the clamping mechanisms are symmetrically arranged on the left and right sides of the wrapped piece on the inner side of the gantry at the front and rear ends of the platform frame, and each group of the clamping mechanisms includes: a hydraulic jack, a push rod and a connecting plate, wherein the hydraulic jack is in contact with the outer wall of the wrapped piece through the push rod and the connecting plate.

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