Goods enclosure secondary screen wall stripping machine

Abstract

A cargo wall secondary screen wall stripping machine is provided with a transversely-arranged circular roller and four steel pipes, the roller and the steel pipes are supported through a support, the support is provided with two supporting plates, the roller and the steel pipes are located between the two supporting plates, a rotating shaft penetrates through the center of the roller and is fixed through nuts, and the four steel pipes are located below the roller and are divided into two groups. Two steel pipes in each group are arranged up and down and are arranged in parallel front and back; a hand-cranking wheel is arranged on one side of the roller and located on the outer side of the supporting plate, and the center of the hand-cranking wheel penetrates through one end of the rotating shaft and is fixedly connected with the rotating shaft. Gaps exist between the four steel pipes and between the steel pipes and the roller, a row of spikes are welded to the outer surface of the roller, and after the flexible secondary screen wall and the rigid secondary screen wall are stripped by a section, the flexible secondary screen wall penetrates through the gaps between the steel pipes and is hung on the spikes; and the rigid secondary screen wall penetrates through a gap between the other group of steel pipes. The device is small in size, light in weight, simple in structure, stable in structure, flexible to move and capable of completing stripping work at any position.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of offshore LNG cargo containment system construction, and particularly relates to a cargo containment secondary barrier wall stripping machine. BACKGROUND

[0002] In the existing MARK Ⅲ LNG cargo containment system, there are two layers of barrier walls, which play a role in preventing LNG leakage. The secondary barrier wall in the shipyard construction is mainly to adhere the flexible secondary barrier wall to the rigid secondary barrier wall by glue. Since the adhesion construction is very important, the adhesion construction personnel need to be trained and pass the expert examination before formal operation; when the cargo containment system is formally constructed, the automatic adhesion robot needs to do a simulation adhesion once a day to check the availability of the equipment. The most important test in the examination and inspection process is to peel off the flexible secondary barrier wall from the rigid secondary barrier wall after the glue is cured (because of the material characteristics, at this time the glue will be left on the rigid secondary barrier wall), and visually check the glue vacancy and bubble condition to determine the adhesion result. The current stripping method is to use large forceps to clamp the rigid secondary barrier wall and the flexible secondary barrier wall respectively, and two people force in the opposite direction to complete the stripping bit by bit. Since the adhesive force of the glue is strong, this stripping method may cause personal injury, and the manual force is uneven, which may damage the glue and affect the inspection effect. SUMMARY

[0003] To solve the above problems, the present application provides a cargo containment secondary barrier wall stripping machine, which adopts the technical scheme of:

[0004] A cargo containment secondary barrier wall stripping machine has a circular roller and four steel pipes placed horizontally. The roller and the steel pipes are supported by a support with two support plates. The roller and the steel pipes are located between the two support plates. A rotating shaft is inserted through the center of the roller. The rotating shaft passes through the rotating bearing on the support plate at both ends and is fixed by a nut. The four steel pipes are located below the roller. Each group of two steel pipes is arranged vertically on the same vertical plane. The two groups of steel pipes are arranged in parallel. The two ends of the steel pipes pass through the support plate and are fixed on the support plate by the nut. A hand wheel is arranged on one side of the roller. The hand wheel is located outside the support plate, passes through the end of the rotating shaft, and is fixedly connected with the rotating shaft.

[0005] There is a gap between the four steel pipes and between the steel pipes and the roller. A row of spikes is welded on the outer surface of the roller. After the flexible secondary barrier wall is peeled off from the rigid secondary barrier wall for a period of time, the flexible secondary barrier wall passes through the gap between one group of steel pipes and is hung on the spikes. The rigid secondary barrier wall passes through the gap between the other group of steel pipes.

[0006] The above cargo containment secondary barrier wall stripping machine further has external threads on both ends of the steel pipes. The two ends of the steel pipes pass through the support plate and are matched with the nut.

[0007] The bearing is embedded in the support plate and fixed on the support plate, and the rotating shaft is provided with external threads at both ends, and the rotating shaft passes through the bearing and is matched with the nut at both ends.

[0008] The hand wheel has a diameter greater than that of the cylinder.

[0009] The support plate is fixed with a base at the bottom.

[0010] The hand wheel can be connected with the motor and driven by the motor.

[0011] The present application has the following advantages:

[0012] 1. The peeling machine has small volume and light weight, can be placed in various positions in the cargo compartment, and is flexible to move. Therefore, the peeling work of the cargo compartment secondary screen wall can be completed at various positions according to the construction requirements.

[0013] 2. The peeling machine has simple structure, stable structure and low cost, and does not increase too much cost.

[0014] 3. The peeling method is simple to operate, and the force is stable during operation, so as not to cause personnel injury and material damage, and can increase the effectiveness of the inspection result. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view structural schematic diagram of the present application;

[0016] Figure 2 is Figure 1 A-A view structural schematic diagram in the present application;

[0017] Figure 3 is Figure 1 B-B view structural schematic diagram in the present application;

[0018] 1-support plate, 2-roller, 3-steel pipe, 4-nut, 5-spine, 6-hand wheel, 7-base, 8-bearing. DETAILED DESCRIPTION

[0019] The present application will be further described in combination with the drawings.

[0020] A kind of cargo surrounding secondary screen wall stripping machine, there is a circular drum and four steel pipes placed transversely, drum and steel pipe are all supported by support, support has two support plates, drum and steel pipe are located in the middle of two support plates, rotating shaft is passed through the center of drum, bearing is embedded in support plate, is fixed on support plate, rotating shaft is provided with external thread at both ends, rotating shaft is passed through bearing after two ends and is matched with nut.Four steel pipes are located below drum, four steel pipes are divided into two groups, every group has two steel pipes located in the same horizontal plane, two groups of steel pipes are arranged in parallel, steel pipe is provided with external thread at both ends, and is matched with nut at both ends after passing through support plate.The side of drum is provided with hand wheel, hand wheel is located outside support plate, is passed through the end of rotating shaft and is fixedly connected with rotating shaft.

[0021] There is spacing between four steel pipes, between steel pipe and drum, and a row of spikes is welded on the outer surface of drum, after a period of stripping of flexible secondary screen wall and rigid secondary screen wall, flexible secondary screen wall passes through the gap between a group of steel pipes and hangs on the spikes;Rigid secondary screen wall passes through the gap between another group of steel pipes.

[0022] In the initial stage of stripping, one operator rotates hand wheel counterclockwise, so that drum rotates counterclockwise, while another operator holds rigid secondary screen wall with his hand to prevent rigid secondary screen wall from separating from a group of steel pipes.When stripping to a certain extent, the personnel for auxiliary fixing rigid secondary screen wall can be cancelled, and the hand wheel operator should stabilize the rotation of hand wheel, so that flexible secondary screen wall can be uniformly stripped.

[0023] The size of stripping machine is about 300*400*400mm, and the mass is about 10kg.The fixed device on drum is clamped to flexible secondary screen wall, and the rotation of drum is realized by manpower, so that the stripping of flexible secondary screen wall from rigid secondary screen wall is realized.

Claims

1. A cargo containment secondary barrier peeling machine characterized by, There are a circular roller and four steel pipes which are transversely placed, the roller and the steel pipes are supported by a support, the support is provided with two support plates, the roller and the steel pipes are located between the two support plates, a rotating shaft is arranged in the center of the roller, the rotating shaft passes through rotating bearings on the support plates at two ends and is fixed by nuts, the four steel pipes are located below the roller, the four steel pipes are divided into two groups, each group has two steel pipes which are arranged in an up-down mode and are located on the same vertical plane, the two groups of steel pipes are arranged in a front-rear mode, the two ends of the steel pipes pass through the support plates and are fixed on the support plates by the nuts; a hand wheel is arranged on one side of the roller, the hand wheel is located outside the support plate, passes through the end of one end of the rotating shaft and is fixedly connected with the rotating shaft; There is a space between the four steel pipes and between the steel pipes and the roller, a row of spikes is welded on the outer surface of the roller, after the flexible secondary screen wall and the rigid secondary screen wall are peeled for a section, the flexible secondary screen wall passes through the gap between one group of steel pipes and is hung on the spikes; the rigid secondary screen wall passes through the gap between the other group of steel pipes.

2. A machine for peeling the walls of a sheath according to claim 1, characterized in that, The two ends of the steel pipes are provided with external threads, and the two ends of the steel pipes pass through the support plates and are matched with the nuts.

3. A machine for peeling the walls of a sheath according to claim 1, characterized in that, The bearing is embedded in the support plate and is fixed on the support plate, the rotating shaft is provided with external threads at two ends, and the rotating shaft passes through the bearing at two ends and is matched with the nuts.

4. A machine for peeling the walls of a sheath according to claim 1, characterized in that, The diameter of the hand wheel is greater than the diameter of the cylinder.

5. A machine for peeling the walls of a sheath according to claim 1, characterized in that, The bottom of the support plate is fixed with a base.

6. A machine for peeling the walls of a sheath according to claim 1, characterized in that, The hand wheel can be connected with a motor and is driven by the motor.

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