Movable platform type electric wrapping machine and method

Abstract

The invention discloses a movable platform type electric winding and wrapping machine and method, the winding and wrapping machine comprises a platform frame: walking wheel assemblies mounted on the inner sides of the upper parts of the front and rear ends of the platform frame, the platform frame can move in the axial direction of a wound part 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 working stability is good.

Description

Technical Field

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

[0002] At present, for the wrapping construction of large-scale wrapped objects, especially on structures with large diameters such as bridge main cables and pipelines, traditional wrapping equipment is mostly operated manually or semi-mechanized. This method has many shortcomings, such as low efficiency, high labor intensity, the tension of the wrapping cannot be maintained continuously, and the construction stability is poor. In addition, during the wrapping process, when there are obstacles on the surface of the wrapped object (such as cable clamps and air clamps), it is usually necessary to stop and adjust, which further reduces the construction efficiency. At the same time, the operation of traditional equipment is difficult to realize automation and intelligence, especially in complex construction environments, such as when the surface of the wrapped object is irregular or there are local height differences, which can easily lead to construction interruptions, increasing the difficulty of operation and construction costs.

[0003] In the prior art, although some winding equipment can achieve a certain degree of automated operation, it still requires a lot of human intervention when encountering obstacles on the surface of the wrapped object. The equipment lacks the ability to overcome obstacles autonomously. Some equipment uses the walking mechanism to directly crush obstacles, causing varying degrees of damage to the wrapped object and the walking mechanism itself. In addition, the structural design of the existing winding equipment is relatively complex, heavy, and has a high center of gravity, which can easily lead to insufficient stability of the equipment during operation, affecting the winding quality and even causing safety hazards.

[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. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned prior art, the present invention proposes a movable platform electric wrapping machine, which has an obstacle crossing function and can realize non-contact crossing over obstacles on the surface of the wrapped object during the wrapping process, while maintaining the overall stability of the equipment to ensure the continuity and quality of the wrapping construction. In addition, the wrapping machine of the present invention has a compact design structure, a low center of gravity, stable operation, and stable wrapping tension. It is suitable for the wrapping construction of various large structures, significantly improving the 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: A movable platform electric wrapping machine, comprising: The platform frame is erected outside the wrapped object, and between the platform frame and the wrapped object there are: A walking wheel assembly includes at least two groups. The multiple walking 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 member through the walking wheel assembly. Each walking wheel assembly is connected to the platform frame through a height lifting mechanism. The height lifting mechanism can drive the walking wheel assembly to be lifted or pressed down to the upper surface of the wrapped member. 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 of the platform frame and the lower spiral screw. 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 driving 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 restraining 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.

[0007] The outer circumferential 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.

[0008] 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 wound object, and the two ends of the sling are connected to the pulley through pins.

[0009] The rotating disk longitudinal drive assembly comprises: a lead screw and a lead screw drive motor, both of which are mounted on the inner bottom of the platform frame, and the rotating disk restraint frame is fixedly connected to the nut moving pair on the lead screw.

[0010] 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 arranged on the wound member, and then the end of the traction wire rope is fixed on the column on the other side of the platform frame.

[0011] The height lifting mechanism is a hydraulic cylinder, the cylinder body of the hydraulic 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 cylinder is connected to the walking wheel assembly.

[0012] 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 installed on the walking wheel housing, and the walking wheel guide support column is connected between the walking wheel housing and the platform frame.

[0013] Two groups of the clamping mechanisms are symmetrically arranged on the inner sides of the gantry at the front and rear ends of the platform frame along the left and right sides of the wrapped piece, 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.

[0014] A wrapping method based on the movable platform electric wrapping machine, Wrapping working method 1: S1. The travel wheel assembly is driven down to the upper surface of the wrapped object through the height lifting mechanism. The entire movable platform electric wrapping machine is suspended and supported on the wrapped object through the travel wheel assembly. At the same time, the entire platform frame and the wrapped object are tightly held through the holding mechanism. S2, start the rotary drive unit, the rotary disk rotates, and at the same time start the longitudinal drive assembly of the rotary disk; S3, the rotating disk restraining frame moves along the longitudinal direction of the platform frame at a uniform speed with the rotating disk, and is wrapped by the wrapping piece; S4, the rotating disk works to the front end position of the platform of the movable platform electric wrapping machine and stops working, and the clamping mechanism loosens the entire platform frame and the wrapped object; the platform moving traction assembly moves the platform frame forward 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 constraint frame drives the rotating disk back to the end position of the previous wrapping, and steps S1 to S3 are repeated; Wrapping working method 2: SA, driving the walking wheel assembly down to the upper surface of the wrapped object through the height lifting mechanism, the entire movable platform type electric wrapping machine is suspended and supported by the walking wheel assembly, and at the same time, the entire platform frame and the wrapped object are loosened through the clamping mechanism; SB, start the rotary drive unit, the rotary disk rotates, and the platform movement traction assembly is started at the same time; The SC and platform frames move forward at a constant speed and are wrapped by the wrapping parts.

[0015] The present invention further discloses a working method based on the movable platform type electric wrapping machine to cross obstacles on the surface of the wrapped object, comprising the following steps: Step 1: When a group of running wheel assemblies on the platform frame near an obstacle encounters an obstacle, the sling is straddled on a group of running wheel assemblies on the upper surface of the wrapped member and near the adjacent obstacle, and both ends of the sling are connected to the pulley through a pin shaft. At this time, the sling can be tightly connected to the entire wrapped member; Step 2: A set of running wheel assemblies on the platform frame near the obstacle is raised by a height lifting mechanism connected thereto until it is higher than the obstacle. At this time, the part of the movable platform-type electric wrapping machine near one end of the obstacle is supported by the sling suspension. The platform moving traction assembly is started, and the entire platform frame moves forward at a uniform speed until the running wheel assembly at the front end of the wrapping direction passes over the obstacle. In the process of crossing the obstacle, both ends of the sling slide along the slide rail through the pulley. 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 the method for the front traveling wheel assembly to cross the obstacle on the surface of the wrapped part. Beneficial Effects

[0016] First, in the movable platform electric wrapping machine described in the present invention, a height lifting mechanism is provided between the walking wheel assembly and the platform frame. At the same time, by straddling 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.

[0017] Second, the platform-type electric wrapping machine of the present invention 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 bottom of the entire wrapping machine, resulting in the overall center of gravity of the wrapping machine being at the bottom of the wrapped object. The machine automatically stands vertically as a whole when riding on the wrapped object, and has good balance, ensuring that no tilting occurs.

[0018] Third, the rotating 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

[0019] Figure 1 It is a schematic diagram of the overall structure of the movable platform electric wrapping machine of the present invention; 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 rotating 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 sling; 13 is the platform moving traction assembly; 14 is the height lifting mechanism; 15 is the wound part; Figure 2 for Figure 1 Side view of. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments and the accompanying drawings of the specification. Example

[0021] 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 type electric wrapping machine is: The movable platform wrapping machine is composed 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.

[0022] Platform frame----The size of the platform frame is (4000~6000)*(2000~2500)*(3000~3500), which is welded from steel structure square tubes and serves as the carrier skeleton of the entire platform electric wrapping machine.

[0023] 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 made of polyurethane material, a walking wheel shell, and a walking wheel guide support column. The main walking wheel in this embodiment has a 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.

[0024] As another scheme 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 along the axial direction of the wrapped part.

[0025] Height lifting mechanism----consists of a hydraulic cylinder, a high-pressure oil pipe, a hydraulic station and a hydraulic control box. The hydraulic cylinder can 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.

[0026] 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 rotating disk restraint frame can slide at a uniform speed along the longitudinal direction of the frame as a whole.

[0027] Rotating assembly----consists of a rotating disk and a rotating disk driving 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. The rotating disk driving motor can realize uniform rotation around the main cable under the action of the gear drive.

[0028] Belt reel----consists of a rotating shaft and a torque measuring instrument, and the belt reel is fixed on a rotating disk.

[0029] The clamping mechanism is composed of a hydraulic jack, a steel structure jack, and a steel structure arc plate. Four sets of clamping mechanisms are symmetrically arranged horizontally on the inner side of the front and rear gantry of the platform frame. Under the action of the hydraulic jack, the entire platform frame can be firmly clamped on the main cable.

[0030] Slide rail----An I-beam slide rail is set at the inner bottom of the platform. Both ends of the slide rail are connected to the gantry frames in front and behind the platform frame. The bottom of the slide rail is connected to the frame at the bottom of the platform frame. A pulley that can slide along the I-beam slide rail is set on the slide rail.

[0031] Pulley----The pulley is suspended on the upper surface of the slide rail. The pulley load is not less than 5T. The pulley can slide back and forth along the I-beam slide rail.

[0032] Slings---The slings are made of nylon or polypropylene, and the load of the slings is not less than 3T. The slings ride on the upper surface of the main cable. The two ends of the slings are connected to the pulley through steel structure pins. Through the height lifting mechanism in the front and rear gantry sections of the operating platform, the entire movable platform wrapping machine can be suspended on the main cable through the slings.

[0033] The rotating disk longitudinal drive assembly is composed of a lead screw and a lead screw drive motor. Both the lead screw and the lead screw drive motor are installed at the bottom inner side of the movable steel structure platform frame. The lead screw drive motor is started to drive the lead screw to rotate, thereby driving the rotating disk restraint frame to move forward at a uniform speed with the rotating disk.

[0034] The platform moving traction assembly is composed of a traction hoist and a traction wire rope. One end of the traction wire rope passes through the traction hoist and then passes through the steering pulley set on the main cable about 20~30m in front of the movable platform electric wrapping machine. Then the end of the traction wire rope is fixed on the column outside the gantry in front of the platform frame. The traction hoist is started. Through the traction of the traction wire rope, the entire movable platform electric wrapping machine can be pulled forward at a uniform speed.

[0035] A wrapping method based on the movable platform electric wrapping machine, Wrapping working method 1: S1. The travel wheel assembly is driven down to the upper surface of the wrapped object through the height lifting mechanism. The entire movable platform electric wrapping machine is suspended and supported on the wrapped object through the travel wheel assembly. At the same time, the entire platform frame and the wrapped object are tightly held through the holding mechanism. S2, start the rotary drive unit, the rotary disk rotates, and at the same time start the longitudinal drive assembly of the rotary disk; S3, the rotating disk restraining frame moves along the longitudinal direction of the platform frame at a uniform speed with the rotating disk, and is wrapped by the wrapping piece; S4, the rotating disk works to the front end position of the platform of the movable platform electric wrapping machine and stops working, and the clamping mechanism loosens the entire platform frame and the wrapped object; the platform moving traction assembly moves the platform frame forward 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 constraint frame drives the rotating disk back to the end position of the previous wrapping, and steps S1 to S3 are repeated; Wrapping working method 2: SA, driving the walking wheel assembly down to the upper surface of the wrapped object through the height lifting mechanism, the entire movable platform type electric wrapping machine is suspended and supported by the walking wheel assembly, and at the same time, the entire platform frame and the wrapped object are loosened through the clamping mechanism; SB, start the rotary drive unit, the rotary disk rotates, and the platform movement traction assembly is started at the same time; The SC and platform frames move forward at a constant speed and are wrapped by the wrapping parts.

[0036] The present invention further discloses a working method based on the movable platform type electric wrapping machine to cross obstacles on the surface of the wrapped object, comprising the following steps:

[0037] Step 1: When a group of running wheel assemblies on the platform frame near an obstacle encounters an obstacle, the sling is straddled on a group of running wheel assemblies on the upper surface of the wrapped member and near the adjacent obstacle, and both ends of the sling are connected to the pulley through a pin shaft. At this time, the sling can be tightly connected to the entire wrapped member; Step 2: A set of running wheel assemblies on the platform frame near the obstacle is raised by a height lifting mechanism connected thereto until it is higher than the obstacle. At this time, the part of the movable platform-type electric wrapping machine near one end of the obstacle is supported by the sling suspension. The platform moving traction assembly is started, and the entire platform frame moves forward at a uniform speed until the running wheel assembly at the front end of the wrapping direction passes over the obstacle. In the process of crossing the obstacle, both ends of the sling slide along the slide rail through the pulley. Step 3: The method of using 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 that of Step 1 to Step 2.

[0038] 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 object, and between the platform frame and the wrapped object there are: A walking wheel assembly includes at least two groups. The multiple walking 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 member through the walking wheel assembly. Each walking wheel assembly is connected to the platform frame through a height lifting mechanism. The height lifting mechanism can drive the walking wheel assembly to be lifted or pressed down to the upper surface of the wrapped member. 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 of the platform frame and the lower spiral screw. 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 driving 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 restraining 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 circumferential 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 wound object, and the two 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 comprises: a lead screw and a lead screw drive motor, both of which are mounted on the inner bottom of the platform frame, and the rotating disk restraint frame is fixedly connected to the nut moving pair on the lead 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 arranged on the wound member, and then the end of the traction wire rope is fixed on 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 cylinder, the cylinder body of the hydraulic 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 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 installed 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 inner sides of the gantry at the front and rear ends of the platform frame along the left and right sides of the wrapped piece, 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.

9. A wrapping method based on the movable platform electric wrapping machine according to any one of claims 1 to 8, characterized in that: Wrapping working method 1: S1. The travel wheel assembly is driven down to the upper surface of the wrapped object through the height lifting mechanism. The entire movable platform electric wrapping machine is suspended and supported on the wrapped object through the travel wheel assembly. At the same time, the entire platform frame and the wrapped object are tightly held through the holding mechanism. S2, start the rotary drive unit, the rotary disk rotates, and at the same time start the longitudinal drive assembly of the rotary disk; S3, the rotating disk restraining frame moves along the longitudinal direction of the platform frame at a uniform speed with the rotating disk, and is wrapped by the wrapping piece; S4, the rotating disk works to the front end position of the platform of the movable platform electric wrapping machine and stops working, and the clamping mechanism loosens the entire platform frame and the wrapped object; the platform moving traction assembly moves the platform frame forward 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 constraint frame drives the rotating disk back to the end position of the previous wrapping, and steps S1 to S3 are repeated; Wrapping working method 2: SA, driving the walking wheel assembly down to the upper surface of the wrapped object through the height lifting mechanism, the entire movable platform type electric wrapping machine is suspended and supported by the walking wheel assembly, and at the same time, the entire platform frame and the wrapped object are loosened through the clamping mechanism; SB, start the rotary drive unit, the rotary disk rotates, and the platform movement traction assembly is started at the same time; The SC and platform frames move forward at a constant speed and are wrapped by the wrapping parts.

10. A working method for crossing obstacles on the surface of a wrapped object by a movable platform electric wrapping machine according to any one of claims 3 to 8, characterized in that: The following steps are involved: Step 1: When a group of running wheel assemblies on the platform frame near an obstacle encounters an obstacle, the sling is straddled on a group of running wheel assemblies on the upper surface of the wrapped member and near the adjacent obstacle, and both ends of the sling are connected to the pulley through a pin shaft. At this time, the sling can be tightly connected to the entire wrapped member; Step 2: A set of running wheel assemblies on the platform frame near the obstacle is raised by a height lifting mechanism connected thereto until it is higher than the obstacle. At this time, the part of the movable platform-type electric wrapping machine near one end of the obstacle is supported by the sling suspension. The platform moving traction assembly is started, and the entire platform frame moves forward at a uniform speed until the running wheel assembly at the front end of the wrapping direction passes over the obstacle. In the process of crossing the obstacle, both ends of the sling slide along the slide rail through the pulley. 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 the method for the front traveling wheel assembly to cross the obstacle on the surface of the wrapped part.

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